US20040022047A1 - Key input device - Google Patents
Key input device Download PDFInfo
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- US20040022047A1 US20040022047A1 US10/631,798 US63179803A US2004022047A1 US 20040022047 A1 US20040022047 A1 US 20040022047A1 US 63179803 A US63179803 A US 63179803A US 2004022047 A1 US2004022047 A1 US 2004022047A1
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- US
- United States
- Prior art keywords
- key
- key backlight
- lighting
- backlight
- input
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0489—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using dedicated keyboard keys or combinations thereof
- G06F3/04895—Guidance during keyboard input operation, e.g. prompting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/036—Light emitting elements
- H01H2219/039—Selective or different modes of illumination
Definitions
- the present invention relates to a key backlight for a cell phone or the like having an operation key section and, more particularly, to a key input device including a light-emitting means for lighting or blinking an operation key section in different modes or colors in accordance with key operation.
- the keys of the operation key section are formed from a transparent or translucent material.
- a plurality of light-emitting portions are arranged on the bottom sides of these keys to light or blink the operation key section in different modes or colors in accordance with the operation of the cell phone.
- Japanese Patent Laid-Open No. 2001-217904 discloses a technique of using an operation key section as a notification means and display means by utilizing the above operation.
- FIG. 7 shows the outer appearance of a cell phone with an operation key section lighting function disclosed in the above reference.
- An operation key section 54 formed from a translucent member is comprised of a plurality of keys such as dial number keys 54 a , a signal transmission/reception key, an on-hook key 54 b , a mail key 54 c , and various setting keys.
- the operation key section 54 also serves as an input operation means for a control section in the cell phone body.
- Multicolor light-emitting portions (key backlights) 55 are arranged in correspondence with the respective keys.
- Each light-emitting portion is constituted by a multicolor LED or the like capable of emitting two or more different color beams.
- the emission mode of each multicolor light-emitting portion 55 is controlled by the control section in the cell phone body.
- the multicolor light-emitting portions 55 emit light beams in predetermined colors in accordance with various kinds of operation of the cell phone.
- the multicolor light-emitting portions 55 and the corresponding keys are assigned in advance to the multicolor light-emitting portions 55 and the corresponding keys, and the multicolor light-emitting portions 55 are made to emit light beams in different colors in accordance with the musical notes of melody sounds generated by the melody sound generating section in the cell phone body.
- the multicolor light-emitting portions are made to emit light beams in different colors in accordance with the kinds of melodies. This makes it possible to discriminate, in accordance with an emission color, who has made a call.
- the multicolor light-emitting portion 55 corresponding to a numeric key indicating the number of incoming calls is made to emit light in accordance with the number of received mail.
- the user in performing mail transmission using the mail function, the user must input a mail message using keys of the operation key section of the cell phone.
- the operation key section has ten-odd keys at most.
- the user must input characters in various modes, e.g., the numeric input mode, kanji input mode, and alphabet input mode using such limited number of keys.
- the character input modes are switched by a character input mode changing key to allow the user to input various kinds of characters by key input in a desired character input mode while checking an icon indicating a character input mode, which is displayed on a corner of the display screen.
- the user must set a desired input mode while checking the currently used input mode with a small icon displayed on a corner of the display screen.
- FIG. 1 is a block diagram showing a key input device according to an embodiment of the present invention
- FIG. 2 is a block diagram showing the hardware arrangement and software arrangement of the key input device according to the first embodiment of the present invention
- FIG. 3 is a flow chart showing the operation of the first embodiment
- FIG. 4 is a block diagram showing the second embodiment of the present invention.
- FIG. 5 is a block diagram showing the third embodiment of the present invention.
- FIG. 6 is a view showing the outer appearance of a cell phone incorporating the present invention.
- FIG. 7 is a view showing the outer appearance of a conventional cell phone to which the present invention can be applied.
- a key input device 11 includes a key input section 12 for inputting character strings and the like and a key backlight 13 which is placed on the lower surface of the key input section and lighted in various different colors.
- the key input section 12 includes a plurality of keys 154 a , 154 b , and 154 c (to be described later).
- the key backlight 13 has light-emitting means 155 a (to be described later) located on the lower surfaces of the respective keys 154 a , 154 b , and 154 c.
- the key input device 11 also includes a mode switching section 14 a which is connected to the key input section 12 to switch the character input modes of the key input section 12 , and a key backlight lighting control section 14 b which changes the lighting color of the key backlight 13 in synchronism with switching of the set character input modes.
- the key input device 11 is connected to the key backlight lighting control section 14 b and includes a storage section 15 having a first storage section 15 a and second storage section 15 b.
- the first storage section 15 a cannot be overwritten, and the second storage section 15 b can be overwritten.
- the hardware arrangement of the key input device 11 according to the present invention is constituted by a key input circuit 1 which receives input signals upon character input operation by a user, and an LED circuit 2 which lights or blinks the key backlight.
- the software arrangement of the key input device 11 according to the present invention includes a character input control function 3 for controlling character input modes such as a kanji input mode, and a key backlight lighting control function 4 for controlling the lighting color and light position of the key backlight.
- the data handled by the key backlight lighting control function is constituted by key backlight lighting setting data 5 for holding a setting indicating whether the key backlight is to be lighted or unlighted, key backlight lighting color data 6 for holding combinations of character input modes and lighting colors, and key backlight lighting position data 7 for holding the positions of keys that can be used for character input operation in the respective character input modes.
- Software programs 21 described above are stored in the first storage section 15 a in advance.
- Hardware 20 operates under the control of the software programs 21 to implement the function of each section described above.
- FIG. 3 shows the operation of this embodiment. The operation of the present invention will be described below with reference to FIGS. 2 and 3.
- the key backlight lighting control function 4 refers to the key backlight lighting setting data 5 to check whether or not a setting for lighting the key backlight has been made for this key input signal (step S 2 ).
- step S 2 If the determination result indicates an “unlighting setting” (step S 2 : NO), the processing is terminated without lighting the key backlight. If the determination result indicates a “lighting setting” (step S 2 : YES), it is checked whether or not the key backlight of the LED circuit 2 is currently OFF (step S 3 ).
- step S 3 If the key backlight of the LED circuit 2 is currently OFF (step S 3 : YES), the character input control function 3 transfers a character input mode signal to the key backlight lighting control function 4 to prepare for lighting of the key backlight (step S 5 ).
- step S 3 If the key backlight of the LED circuit 2 is currently ON (step S 3 : NO), the character input control function 3 checks whether character input modes have been switched (step S 4 ).
- step S 4 If no character input modes have been switched (step S 4 : NO), the state of the key backlight is kept unchanged, and the processing is terminated.
- step S 4 If character input modes have been switched (step S 4 : YES), the character input control function 3 transfers a character input mode signal to the key backlight lighting control function 4 to prepare for changing of the color and lighting position of the key backlight (step S 5 ).
- the key backlight lighting control function 4 Upon reception of the character input mode signal from the character input control function 3 in step S 5 , the key backlight lighting control function 4 refers to the key backlight lighting color data 6 and key backlight lighting position data 7 and transmits key backlight lighting color data and key backlight lighting position data corresponding to the received character input mode to the LED circuit 2 (step S 6 ).
- the LED circuit 2 lights, in designated lighting color, the backlights for keys that can be used for input operation (step S 7 ).
- the above embodiment has exemplified the character input modes such as the kanji input mode.
- a numeric input mode and the like can be set, and the device can be switched to these modes as needed.
- the device may be switched to an input mode based on the language spoken in the counter where the device is used. For example, the device may be switched to an English input mode in an English-speaking country; a French input mode in a French-speaking country; and a German input mode in a German-speaking country.
- the key backlight can be lighted in many colors such as red and blue.
- a specific arrangement for multicolor lighting of the key backlight can be implemented by a proper means, e.g., the multicolor light-emitting portions in the above reference.
- red, green, and blue LEDs are arranged as light-emitting portions.
- a transparent or translucent member is preferably used for each key of the key input, which is used for character input operation and the like.
- the entire key input section or only corresponding keys that can be used for input operation are lighted by key backlights in a corresponding color. This allows the user to visually recognize, through the key backlights, the current character input mode and whether or not character input operation can be done.
- the lighting color of each key backlight makes the user visually recognize the currently used character input mode and whether or not character input operation can be done.
- the character input mode is changed, the lighting colors or lighting positions of key backlights are changed. If, therefore, an unintentional change in character input mode occurs, the user can recognize the change before performing key input operation. This leads to a reduction in input errors.
- the second embodiment differs from the first embodiment in key backlight lighting color data 6 .
- a characteristic feature of this embodiment is that a user can change the combinations of character input modes and corresponding key backlight lighting colors.
- the data of a combination designated by the user is stored in a storage area for user settings (b) different from a storage area for initial settings (a).
- the initial settings (a) are stored in a first storage section 15 a
- the user settings (b) are stored in a second storage section 15 b.
- a key backlight lighting control function 4 The basic operation of a key backlight lighting control function 4 is the same as that in the first embodiment.
- the storage area for the user settings (b) is preferentially referred to, and an LED circuit 2 is lighted in accordance with the combinations of character input modes and corresponding key backlight lighting colors which are designated by the user.
- the combinations of character input modes and corresponding key backlight lighting colors can be changed in accordance with the preferences of the user, as needed.
- the initial settings are not overwritten and changed, and the user can return to the initial settings (a) as needed.
- the third embodiment differs from the first embodiment in that it has application software 8 .
- the programs created by JAVA (registered trademark) or the like are downloaded into a software section. If the downloaded application software 8 includes key backlight application setting lighting color data 9 and key backlight application setting lighting position data 10 , a key backlight lighting control function 4 refers to these data.
- the key backlight application setting lighting color data 9 is data which defines combinations of character input modes and lighting colors
- the key backlight application setting lighting position data 10 is data which defines the positions of keys prepared for the respective character input modes, which can be used for character input operation.
- This application is stored in a second storage section 15 b.
- the key backlight lighting control function 4 refers to the key backlight application setting lighting color data 9 and key backlight application setting lighting position data 10 while the application software 8 is executed.
- This operation makes it possible to perform LED control by operation similar to character input operation.
- scene changes and keys that can be used for input operation can be displayed with key backlights so as to be visually discriminated.
- FIG. 6 shows cell phone incorporating the key input device according to the above embodiment.
- a cell phone 151 includes an antenna 152 and operation key section 154 , like the cell phone 51 described with reference to FIG. 7.
- An operation key section 154 includes a plurality of keys such as dial number keys 154 a , a signal transmission/reception key, an on-hook key 154 b , a mail key 154 c , and various setting keys.
- the operation key section 154 also includes a multicolor light-emitting section (key backlight) 155 which is placed on the lower surface of the multicolor light-emitting section 155 and lighted in a plurality of colors.
- the multicolor light-emitting section 155 includes a plurality of light-emitting portions 155 a provided for the respective keys. In synchronism with a character input mode, the light-emitting portions 155 a light all the operation keys or only corresponding keys that can be used for input operation in a corresponding color.
- the present invention is applied to the operation key section of the cell phone.
- the present invention can also be applied to other mobile terminals, personal computers, and the like which have a key input section designed to perform key input operation while switching a plurality of character input modes.
- the lighting color of the key backlight allows the user to visually recognize the current character input mode, whereas the lighting position of the key backlight allows the use to visually recognize each key that can be used for key input operation. This makes it possible to efficiently perform character input operation.
- the user can visually recognize switching of character input modes in accordance with the lighting color of the backlight and a change in light position. This can therefore prevent the user from making an input error without noticing a change in the icon on the screen.
Abstract
A key input device includes a key input section, mode switching section, key backlight, and key backlight lighting control section. The key input section inputs characters by key input in a plurality of character input modes. The mode switching section switches a plurality of character input modes. The key backlight is placed on a lower surface of the key input section and is lighted in a plurality of colors. The key backlight lighting control section changes the lighting color of the key backlight in accordance with switching of character input modes. A cell phone is also disclosed.
Description
- The present invention relates to a key backlight for a cell phone or the like having an operation key section and, more particularly, to a key input device including a light-emitting means for lighting or blinking an operation key section in different modes or colors in accordance with key operation.
- In a cell phone having an operation key section constituted by a plurality of keys for operating the cell phone, e.g., inputting a telephone number or mail using characters, the keys of the operation key section are formed from a transparent or translucent material. In addition, a plurality of light-emitting portions (key backlights) are arranged on the bottom sides of these keys to light or blink the operation key section in different modes or colors in accordance with the operation of the cell phone.
- Japanese Patent Laid-Open No. 2001-217904 discloses a technique of using an operation key section as a notification means and display means by utilizing the above operation.
- FIG. 7 shows the outer appearance of a cell phone with an operation key section lighting function disclosed in the above reference. An
operation key section 54 formed from a translucent member is comprised of a plurality of keys such asdial number keys 54 a, a signal transmission/reception key, an on-hook key 54 b, amail key 54 c, and various setting keys. Theoperation key section 54 also serves as an input operation means for a control section in the cell phone body. - Multicolor light-emitting portions (key backlights)55 are arranged in correspondence with the respective keys. Each light-emitting portion is constituted by a multicolor LED or the like capable of emitting two or more different color beams. The emission mode of each multicolor light-emitting
portion 55 is controlled by the control section in the cell phone body. In addition, the multicolor light-emittingportions 55 emit light beams in predetermined colors in accordance with various kinds of operation of the cell phone. - For example, musical notes are assigned in advance to the multicolor light-emitting
portions 55 and the corresponding keys, and the multicolor light-emittingportions 55 are made to emit light beams in different colors in accordance with the musical notes of melody sounds generated by the melody sound generating section in the cell phone body. Alternatively, when a plurality of melodies are set, the multicolor light-emitting portions are made to emit light beams in different colors in accordance with the kinds of melodies. This makes it possible to discriminate, in accordance with an emission color, who has made a call. - In addition, when mail is received, the multicolor light-
emitting portion 55 corresponding to a numeric key indicating the number of incoming calls is made to emit light in accordance with the number of received mail. - When the
dial number key 54 a lighted by the light emitted by the multicolor light-emittingportion 55 is pressed, the contents of the mail are displayed on adisplay section 53. - Many functions as added values, e.g., a mail function and browser function, are added to recent cell phones.
- For example, in performing mail transmission using the mail function, the user must input a mail message using keys of the operation key section of the cell phone.
- The operation key section, however, has ten-odd keys at most. The user must input characters in various modes, e.g., the numeric input mode, kanji input mode, and alphabet input mode using such limited number of keys. In general, therefore, the character input modes are switched by a character input mode changing key to allow the user to input various kinds of characters by key input in a desired character input mode while checking an icon indicating a character input mode, which is displayed on a corner of the display screen.
- As described above, the user must set a desired input mode while checking the currently used input mode with a small icon displayed on a corner of the display screen.
- If the character input mode is changed by an input error unintended by the user, he/she tends to overlook the change in mode with such a small icon. As a consequence, the input error makes the user waste extra time creating a mail message.
- It is an object of the present invention to facilitate confirmation of the currently used character input mode and allow a user to know a newly set character input mode upon occurrence of a change in character input mode, thereby improving the efficiency of character input operation through an operation key section.
- In order to achieve the above object, according to the present invention, there is provided a key input device comprising key input means for inputting characters by key input in a plurality of character input modes, switching means for switching a plurality of character input modes, a key backlight which is placed on a lower surface of the key input means and is lighted in a plurality of colors, and lighting control means for changing a lighting color of the key backlight in accordance with switching of character input modes.
- FIG. 1 is a block diagram showing a key input device according to an embodiment of the present invention;
- FIG. 2 is a block diagram showing the hardware arrangement and software arrangement of the key input device according to the first embodiment of the present invention;
- FIG. 3 is a flow chart showing the operation of the first embodiment;
- FIG. 4 is a block diagram showing the second embodiment of the present invention;
- FIG. 5 is a block diagram showing the third embodiment of the present invention;
- FIG. 6 is a view showing the outer appearance of a cell phone incorporating the present invention; and
- FIG. 7 is a view showing the outer appearance of a conventional cell phone to which the present invention can be applied.
- As shown in FIG. 1, a
key input device 11 according to the present invention includes akey input section 12 for inputting character strings and the like and akey backlight 13 which is placed on the lower surface of the key input section and lighted in various different colors. In this case, thekey input section 12 includes a plurality ofkeys key backlight 13 has light-emitting means 155 a (to be described later) located on the lower surfaces of therespective keys - The
key input device 11 also includes amode switching section 14 a which is connected to thekey input section 12 to switch the character input modes of thekey input section 12, and a key backlightlighting control section 14 b which changes the lighting color of thekey backlight 13 in synchronism with switching of the set character input modes. Thekey input device 11 is connected to the key backlightlighting control section 14 b and includes astorage section 15 having afirst storage section 15 a andsecond storage section 15 b. - In the
key input device 11, thefirst storage section 15 a cannot be overwritten, and thesecond storage section 15 b can be overwritten. - As shown in FIG. 2, the hardware arrangement of the
key input device 11 according to the present invention is constituted by akey input circuit 1 which receives input signals upon character input operation by a user, and anLED circuit 2 which lights or blinks the key backlight. The software arrangement of thekey input device 11 according to the present invention includes a characterinput control function 3 for controlling character input modes such as a kanji input mode, and a key backlightlighting control function 4 for controlling the lighting color and light position of the key backlight. - The data handled by the key backlight lighting control function is constituted by key backlight
lighting setting data 5 for holding a setting indicating whether the key backlight is to be lighted or unlighted, key backlightlighting color data 6 for holding combinations of character input modes and lighting colors, and key backlightlighting position data 7 for holding the positions of keys that can be used for character input operation in the respective character input modes. -
Software programs 21 described above are stored in thefirst storage section 15 a in advance.Hardware 20 operates under the control of thesoftware programs 21 to implement the function of each section described above. - FIG. 3 shows the operation of this embodiment. The operation of the present invention will be described below with reference to FIGS. 2 and 3.
- When a signal is input to the
key input circuit 1 upon key operation (step S1), the key backlightlighting control function 4 refers to the key backlightlighting setting data 5 to check whether or not a setting for lighting the key backlight has been made for this key input signal (step S2). - If the determination result indicates an “unlighting setting” (step S2: NO), the processing is terminated without lighting the key backlight. If the determination result indicates a “lighting setting” (step S2: YES), it is checked whether or not the key backlight of the
LED circuit 2 is currently OFF (step S3). - If the key backlight of the
LED circuit 2 is currently OFF (step S3: YES), the characterinput control function 3 transfers a character input mode signal to the key backlightlighting control function 4 to prepare for lighting of the key backlight (step S5). - If the key backlight of the
LED circuit 2 is currently ON (step S3: NO), the characterinput control function 3 checks whether character input modes have been switched (step S4). - If no character input modes have been switched (step S4: NO), the state of the key backlight is kept unchanged, and the processing is terminated.
- If character input modes have been switched (step S4: YES), the character
input control function 3 transfers a character input mode signal to the key backlightlighting control function 4 to prepare for changing of the color and lighting position of the key backlight (step S5). - Upon reception of the character input mode signal from the character
input control function 3 in step S5, the key backlightlighting control function 4 refers to the key backlightlighting color data 6 and key backlightlighting position data 7 and transmits key backlight lighting color data and key backlight lighting position data corresponding to the received character input mode to the LED circuit 2 (step S6). - In accordance with the received backlight lighting color data and key backlight lighting position data, the
LED circuit 2 lights, in designated lighting color, the backlights for keys that can be used for input operation (step S7). - The above embodiment has exemplified the character input modes such as the kanji input mode. In addition to them, however, a numeric input mode and the like can be set, and the device can be switched to these modes as needed. In addition, the device may be switched to an input mode based on the language spoken in the counter where the device is used. For example, the device may be switched to an English input mode in an English-speaking country; a French input mode in a French-speaking country; and a German input mode in a German-speaking country. In addition, the key backlight can be lighted in many colors such as red and blue.
- A specific arrangement for multicolor lighting of the key backlight can be implemented by a proper means, e.g., the multicolor light-emitting portions in the above reference. For example, red, green, and blue LEDs (light-emitting portions) are arranged as light-emitting portions. A transparent or translucent member is preferably used for each key of the key input, which is used for character input operation and the like. In this embodiment, in synchronism with a character input mode, the entire key input section or only corresponding keys that can be used for input operation are lighted by key backlights in a corresponding color. This allows the user to visually recognize, through the key backlights, the current character input mode and whether or not character input operation can be done.
- In this case, the lighting color of each key backlight makes the user visually recognize the currently used character input mode and whether or not character input operation can be done. When the character input mode is changed, the lighting colors or lighting positions of key backlights are changed. If, therefore, an unintentional change in character input mode occurs, the user can recognize the change before performing key input operation. This leads to a reduction in input errors.
- The second embodiment of the present invention will be described next with reference to FIG. 4.
- The second embodiment differs from the first embodiment in key backlight
lighting color data 6. A characteristic feature of this embodiment is that a user can change the combinations of character input modes and corresponding key backlight lighting colors. - The data of a combination designated by the user is stored in a storage area for user settings (b) different from a storage area for initial settings (a). For example, the initial settings (a) are stored in a
first storage section 15 a, and the user settings (b) are stored in asecond storage section 15 b. - The basic operation of a key backlight
lighting control function 4 is the same as that in the first embodiment. When, however, the user settings (b) are stored, the storage area for the user settings (b) is preferentially referred to, and anLED circuit 2 is lighted in accordance with the combinations of character input modes and corresponding key backlight lighting colors which are designated by the user. - According to this embodiment, the combinations of character input modes and corresponding key backlight lighting colors can be changed in accordance with the preferences of the user, as needed. In addition, since different storage areas are provided for the initial settings (a) and user settings (b), the initial settings are not overwritten and changed, and the user can return to the initial settings (a) as needed.
- The third embodiment of the present invention will be described next with reference to FIG. 5.
- The third embodiment differs from the first embodiment in that it has
application software 8. In this embodiment, the programs created by JAVA (registered trademark) or the like are downloaded into a software section. If the downloadedapplication software 8 includes key backlight application settinglighting color data 9 and key backlight application settinglighting position data 10, a key backlightlighting control function 4 refers to these data. - In this case, the key backlight application setting
lighting color data 9 is data which defines combinations of character input modes and lighting colors, and the key backlight application settinglighting position data 10 is data which defines the positions of keys prepared for the respective character input modes, which can be used for character input operation. This application is stored in asecond storage section 15 b. - The key backlight
lighting control function 4 refers to the key backlight application settinglighting color data 9 and key backlight application settinglighting position data 10 while theapplication software 8 is executed. - This operation makes it possible to perform LED control by operation similar to character input operation. As a consequence, scene changes and keys that can be used for input operation can be displayed with key backlights so as to be visually discriminated.
- FIG. 6 shows cell phone incorporating the key input device according to the above embodiment. A
cell phone 151 includes anantenna 152 and operationkey section 154, like thecell phone 51 described with reference to FIG. 7. An operationkey section 154 includes a plurality of keys such asdial number keys 154 a, a signal transmission/reception key, an on-hook key 154 b, amail key 154 c, and various setting keys. - The operation
key section 154 also includes a multicolor light-emitting section (key backlight) 155 which is placed on the lower surface of the multicolor light-emittingsection 155 and lighted in a plurality of colors. The multicolor light-emittingsection 155 includes a plurality of light-emitting portions 155 a provided for the respective keys. In synchronism with a character input mode, the light-emitting portions 155 a light all the operation keys or only corresponding keys that can be used for input operation in a corresponding color. - The above embodiment has been described on the premise that the present invention is applied to the operation key section of the cell phone. However, the present invention can also be applied to other mobile terminals, personal computers, and the like which have a key input section designed to perform key input operation while switching a plurality of character input modes.
- According to the present invention, the lighting color of the key backlight allows the user to visually recognize the current character input mode, whereas the lighting position of the key backlight allows the use to visually recognize each key that can be used for key input operation. This makes it possible to efficiently perform character input operation.
- In addition, the user can visually recognize switching of character input modes in accordance with the lighting color of the backlight and a change in light position. This can therefore prevent the user from making an input error without noticing a change in the icon on the screen.
Claims (9)
1. A key input device comprising:
key input means for inputting characters by key input in a plurality of character input modes;
switching means for switching a plurality of character input modes;
a key backlight which is placed on a lower surface of said key input means and is lighted in a plurality of colors; and
lighting control means for changing a lighting color of said key backlight in accordance with switching of character input modes.
2. A device according to claim 1 , wherein
said key input means comprises a plurality of keys,
said key backlight comprises light-emitting means located at lower surfaces of the respective keys, and
said lighting control means changes a lighting color of only the light-emitting means located at the lower surface of a key which can be used for character input operation in a set character input mode.
3. A device according to claim 1 , wherein
said device further comprises storage means for storing correspondence data between a plurality of character input modes and a plurality of colors, and
when a signal indicating that a character input mode is switched is input from said key input means, said key backlight lighting control means determines a lighting color of said key backlight by referring to said storage means.
4. A device according to claim 3 , wherein
said storage means comprises first storage means which cannot be overwritten, and
the correspondence data is stored as an initial setting value in the first storage means.
5. A device according to claim 4 , wherein
said storage means comprises second storage means which can be overwritten, and
said key backlight lighting control means writes the correspondence data as a user setting value in the second storage means.
6. A device according to claim 5 , wherein said key backlight lighting control means preferentially refers to a user setting value when the user setting value is stored.
7. A device according to claim 3 , wherein
said storage means further comprises key backlight application setting lighting color data for setting a lighting color of said key backlight, and key backlight application setting lighting position data for setting a lighting position of said key backlight, and
said key backlight lighting control means determines a lighting color of said key backlight by referring to at least one of key backlight application setting lighting color data and key backlight application setting lighting position data.
8. A device according to claim 7 , wherein said key backlight lighting control means downloads key backlight application setting lighting color data and key backlight application setting lighting position data.
9. A cell phone comprising a key input device defined in claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/679,719 US7686465B2 (en) | 2002-08-01 | 2007-02-27 | Key input device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002225197A JP4462817B2 (en) | 2002-08-01 | 2002-08-01 | Visualization method of character input mode by key backlight multicolor lighting |
JP2002-225197 | 2002-08-01 |
Related Child Applications (1)
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US11/679,719 Division US7686465B2 (en) | 2002-08-01 | 2007-02-27 | Key input device |
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US20040022047A1 true US20040022047A1 (en) | 2004-02-05 |
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Family Applications (2)
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US11/679,719 Expired - Fee Related US7686465B2 (en) | 2002-08-01 | 2007-02-27 | Key input device |
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US11/679,719 Expired - Fee Related US7686465B2 (en) | 2002-08-01 | 2007-02-27 | Key input device |
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JP (1) | JP4462817B2 (en) |
CN (2) | CN1313907C (en) |
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---|---|---|---|---|
US20050157178A1 (en) * | 2004-01-16 | 2005-07-21 | Casio Computer Co., Ltd. | Image capture device having multiple operation modes and recording medium recorded with mode switching program |
WO2006003510A1 (en) * | 2004-06-30 | 2006-01-12 | Nokia Corporation | Multi colours device illumination |
US20060060071A1 (en) * | 2004-09-21 | 2006-03-23 | Yamaha Corporation | Parameter setting apparatus and method |
US20070005346A1 (en) * | 2003-10-31 | 2007-01-04 | Matsushita Electric Industrial Co., Ltd. | Mobile terminal device |
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US20160306439A1 (en) * | 2014-10-07 | 2016-10-20 | Logitech Europe S.A. | System and method for software and peripheral integration |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5408060A (en) * | 1991-01-29 | 1995-04-18 | Nokia Mobile Phones Ltd. | Illuminated pushbutton keyboard |
US5975711A (en) * | 1995-06-27 | 1999-11-02 | Lumitex, Inc. | Integrated display panel assemblies |
US6299322B1 (en) * | 1999-05-06 | 2001-10-09 | Nec Corporation | Illuminating device for a portable radio apparatus |
US20010050675A1 (en) * | 1998-01-07 | 2001-12-13 | O'leary Michael J. | Viewer system for a wireless device |
US6550927B1 (en) * | 1999-10-19 | 2003-04-22 | Nokia Mobile Phones Limited | Light guide for a communication unit |
US6661348B2 (en) * | 2001-10-10 | 2003-12-09 | Lance S. Hall | Apparatus for providing a visual indication of receipt of an electronic message |
US6677931B2 (en) * | 2000-06-21 | 2004-01-13 | Leadtek Research Inc. | Keyboard |
US6760012B1 (en) * | 1998-12-29 | 2004-07-06 | Nokia Mobile Phones Ltd. | Method and means for editing input text |
US6762740B1 (en) * | 1999-09-14 | 2004-07-13 | Nec Corporation | Apparatus for lighting a display in a color dependent on information and method therefor |
US6761462B2 (en) * | 2000-03-28 | 2004-07-13 | Pioneer Corporation | Button for an electric device and method of controlling lighting of the button |
US6765556B2 (en) * | 2001-11-16 | 2004-07-20 | International Business Machines Corporation | Two-key input per character text entry apparatus and method |
US6805506B2 (en) * | 2002-03-20 | 2004-10-19 | Lubartech Ltd. | Keyboard with multiple indicia sets |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3235752A1 (en) * | 1982-09-27 | 1984-03-29 | Siemens Ag | Multifunction key |
JPH03164922A (en) * | 1989-11-24 | 1991-07-16 | Canon Inc | Keyboard device |
CN2240163Y (en) * | 1995-06-23 | 1996-11-13 | 信利电子有限公司 | Automatic background lighting calculator with display screen |
KR0144389B1 (en) * | 1995-08-22 | 1998-08-01 | 김광호 | Keypad system for keyphone |
JPH10240419A (en) * | 1997-02-21 | 1998-09-11 | Nec Corp | Electric light display keyboard input control system |
DE10119230B4 (en) * | 2001-04-19 | 2005-03-24 | Siemens Ag | Communication terminal and method for transmitting and displaying information |
JP4462817B2 (en) * | 2002-08-01 | 2010-05-12 | 日本電気株式会社 | Visualization method of character input mode by key backlight multicolor lighting |
-
2002
- 2002-08-01 JP JP2002225197A patent/JP4462817B2/en not_active Expired - Fee Related
-
2003
- 2003-07-31 US US10/631,798 patent/US20040022047A1/en not_active Abandoned
- 2003-08-01 CN CNB200410080456XA patent/CN1313907C/en not_active Expired - Fee Related
- 2003-08-01 GB GB0318124A patent/GB2393424B/en not_active Expired - Fee Related
- 2003-08-01 CN CNA031496113A patent/CN1480825A/en active Pending
-
2007
- 2007-02-27 US US11/679,719 patent/US7686465B2/en not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5408060A (en) * | 1991-01-29 | 1995-04-18 | Nokia Mobile Phones Ltd. | Illuminated pushbutton keyboard |
US5975711A (en) * | 1995-06-27 | 1999-11-02 | Lumitex, Inc. | Integrated display panel assemblies |
US20010050675A1 (en) * | 1998-01-07 | 2001-12-13 | O'leary Michael J. | Viewer system for a wireless device |
US6760012B1 (en) * | 1998-12-29 | 2004-07-06 | Nokia Mobile Phones Ltd. | Method and means for editing input text |
US6299322B1 (en) * | 1999-05-06 | 2001-10-09 | Nec Corporation | Illuminating device for a portable radio apparatus |
US6762740B1 (en) * | 1999-09-14 | 2004-07-13 | Nec Corporation | Apparatus for lighting a display in a color dependent on information and method therefor |
US6550927B1 (en) * | 1999-10-19 | 2003-04-22 | Nokia Mobile Phones Limited | Light guide for a communication unit |
US6761462B2 (en) * | 2000-03-28 | 2004-07-13 | Pioneer Corporation | Button for an electric device and method of controlling lighting of the button |
US6677931B2 (en) * | 2000-06-21 | 2004-01-13 | Leadtek Research Inc. | Keyboard |
US6661348B2 (en) * | 2001-10-10 | 2003-12-09 | Lance S. Hall | Apparatus for providing a visual indication of receipt of an electronic message |
US6765556B2 (en) * | 2001-11-16 | 2004-07-20 | International Business Machines Corporation | Two-key input per character text entry apparatus and method |
US6805506B2 (en) * | 2002-03-20 | 2004-10-19 | Lubartech Ltd. | Keyboard with multiple indicia sets |
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7686465B2 (en) * | 2002-08-01 | 2010-03-30 | Nec Corporation | Key input device |
US20070139384A1 (en) * | 2002-08-01 | 2007-06-21 | Nec Corporation | Key input device |
US20070005346A1 (en) * | 2003-10-31 | 2007-01-04 | Matsushita Electric Industrial Co., Ltd. | Mobile terminal device |
US20050157178A1 (en) * | 2004-01-16 | 2005-07-21 | Casio Computer Co., Ltd. | Image capture device having multiple operation modes and recording medium recorded with mode switching program |
US7489360B2 (en) * | 2004-01-16 | 2009-02-10 | Casio Computer Co., Ltd. | Image capture device having multiple operation modes and recording medium recorded with mode switching program |
US20070171503A1 (en) * | 2004-02-11 | 2007-07-26 | David Luo | Display device and method and keyboard using them |
WO2006003510A1 (en) * | 2004-06-30 | 2006-01-12 | Nokia Corporation | Multi colours device illumination |
US8167458B2 (en) | 2004-06-30 | 2012-05-01 | Core Wireless Licensing S.A.R.L. | Multi colours device illumination |
US8608345B2 (en) * | 2004-06-30 | 2013-12-17 | Core Wireless Licensing, S.a.r.l. | Multi colours device illumination |
KR100998346B1 (en) | 2004-06-30 | 2010-12-03 | 노키아 코포레이션 | Multi colours device illumination |
US20090042621A1 (en) * | 2004-06-30 | 2009-02-12 | Nokia Corporation | Multi colours device illumination |
EP1621974A3 (en) * | 2004-07-30 | 2012-05-30 | Symbol Technologies, Inc. | Programmable keypad for portable device |
CN1753118B (en) * | 2004-09-21 | 2013-05-29 | 雅马哈株式会社 | Parameter setting apparatus and method |
US20060060071A1 (en) * | 2004-09-21 | 2006-03-23 | Yamaha Corporation | Parameter setting apparatus and method |
EP1821177A4 (en) * | 2004-11-17 | 2012-11-21 | Panasonic Corp | Mobile terminal device and program selection method |
EP1821177A1 (en) * | 2004-11-17 | 2007-08-22 | Matsushita Electric Industrial Co., Ltd. | Mobile terminal device and program selection method |
US20090027565A1 (en) * | 2005-01-20 | 2009-01-29 | Eric Andrew Dorsey | Bi-Modal Switching for Controlling Digital TV Applications on Hand-Held Video Devices |
US8780271B2 (en) * | 2005-01-20 | 2014-07-15 | Thomson Licensing | Bi-modal switching for controlling digital TV applications on hand-held video devices |
US8810734B2 (en) * | 2005-08-31 | 2014-08-19 | Thomson Licensing | Bi-modal switching for controlling digital TV applications on video devices |
US20090059091A1 (en) * | 2005-08-31 | 2009-03-05 | Eric Andrew Dorsey | Bi-Modal Switching for Controlling Digital Tv Applications on Video Devices |
US20080046839A1 (en) * | 2006-06-27 | 2008-02-21 | Pixtel Media Technology (P) Ltd. | Input mode switching methods and devices utilizing the same |
WO2008132536A1 (en) * | 2007-04-26 | 2008-11-06 | Nokia Corporation | Improved method and apparatus for switching between different modes in a mobile communication terminal |
US20100291911A1 (en) * | 2007-04-26 | 2010-11-18 | Nokia Corporation | Mobile communication terminal and method |
US8401536B2 (en) | 2007-04-26 | 2013-03-19 | Nokia Corporation | Mobile communication terminal and method |
US20120191181A1 (en) * | 2007-04-27 | 2012-07-26 | Kassab Ghassan S | Systems and methods for localization of a puncture site relative to a mammalian tissue of interest |
EP2302876A4 (en) * | 2008-07-16 | 2013-02-06 | Nec Corp | Portable communication terminal, program, and status indication method |
EP2302876A1 (en) * | 2008-07-16 | 2011-03-30 | NEC Corporation | Portable communication terminal, program, and status indication method |
EP2658220A1 (en) * | 2008-07-16 | 2013-10-30 | NEC Corporation | Mobile communication terminal, program and state display method |
US9019208B2 (en) * | 2008-07-16 | 2015-04-28 | Lenovo Innovations Limited (Hong Kong) | Mobile communication terminal, program and state display method |
US20110122069A1 (en) * | 2008-07-16 | 2011-05-26 | Hirohito Asakura | Mobile communication terminal, program and state display method |
EP2336848A1 (en) * | 2008-08-12 | 2011-06-22 | NEC Corporation | Terminal device, and back light emitting method and program in mobile terminal of the device |
US8487878B2 (en) * | 2008-08-12 | 2013-07-16 | Nec Corporation | Terminal apparatus, backlight emission method and computer readable medium for terminal apparatus |
EP2336848A4 (en) * | 2008-08-12 | 2013-08-07 | Nec Corp | Terminal device, and back light emitting method and program in mobile terminal of the device |
US20110128233A1 (en) * | 2008-08-12 | 2011-06-02 | Toru Aoike | Terminal device, and back light emitting method and program in mobile terminal of the device |
US20100118060A1 (en) * | 2008-11-10 | 2010-05-13 | High Tech Computer Corp. | Portable electronic apparatus and method for controlling light thereof |
KR101389815B1 (en) * | 2009-06-24 | 2014-04-29 | 마이크로칩 테크놀로지 저머니 Ⅱ 게엠베하 운트 콤파니 카게 | Electrode arrangement for display device |
US20160306439A1 (en) * | 2014-10-07 | 2016-10-20 | Logitech Europe S.A. | System and method for software and peripheral integration |
Also Published As
Publication number | Publication date |
---|---|
CN1313907C (en) | 2007-05-02 |
CN1480825A (en) | 2004-03-10 |
GB2393424B (en) | 2005-10-19 |
CN1595347A (en) | 2005-03-16 |
US7686465B2 (en) | 2010-03-30 |
US20070139384A1 (en) | 2007-06-21 |
JP4462817B2 (en) | 2010-05-12 |
GB0318124D0 (en) | 2003-09-03 |
JP2004070430A (en) | 2004-03-04 |
GB2393424A (en) | 2004-03-31 |
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