CN1604627B - Video signal channel encrypting method, video signal channel encrypting device and encryptable television - Google Patents
Video signal channel encrypting method, video signal channel encrypting device and encryptable television Download PDFInfo
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- CN1604627B CN1604627B CN2004100409397A CN200410040939A CN1604627B CN 1604627 B CN1604627 B CN 1604627B CN 2004100409397 A CN2004100409397 A CN 2004100409397A CN 200410040939 A CN200410040939 A CN 200410040939A CN 1604627 B CN1604627 B CN 1604627B
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Abstract
This is a kind of video signal channel encrypting method, the video signal channel encrypting apparatus and encrypting TV. This invention involves electronic technology, especially TV, satellite receiver, set top box and other receiver. This invention can solve: it provides a kind of video signal encrypting technique, can realize encrypting of TV program. This invention provides video signal channel encrypting method. It encrypts the predefined channel in receiver such as TV or set top box. The benefits of this invention are: it can realize the encrypting of some channel, so parents don't need to worry about the effect of eroticism and violence to children. And parents also can encrypt the TV program that children have a crush on.
Description
Technical field
The present invention relates to electronic technology, particularly receiving systems such as television set, satellite receiver, set-top box.
Background technology
TV programme is more and more at present, and programme content is also rich and varied.But the channel that has is play some violence films through regular meeting, and the channel that has may often have terrified plot, some the pornographic content often that also has.All these all are that the head of a family does not wish that child sees.So the head of a family wishes to limit watching of some channel, is beneficial to growing up healthy and sound of child.
At present, external way is to add enciphered message in being unfavorable for child's signal of TV program, after television set is received enciphered message, allows TV not frame out and sound.If the user will normally watch, need the user to input password.
The shortcoming of this technology is to need TV station to make program in advance to handle.The standard that whether needs to encrypt is grasped in content service provider on hand.And this encryption technology needs television set to do corresponding cooperation technically.
Summary of the invention
Technical problem to be solved by this invention is, a kind of video signal encryption technology is provided, and can realize on TV the program of not encrypted being encrypted.
The technical scheme that the present invention solve the technical problem employing is, a kind of video channel encryption method is provided, and in television set predetermined channel carried out encryption.
Described encryption may further comprise the steps: a, the selected program that needs encryption; The frequency sign of the program that b, recording step a are selected; The mapping table of c, setting code and described frequency sign is to this frequency mark encryption.Described step c comprises: setting code---channel map, set encipheror: if the channel that request is play in mapping table, is pointed out the input password; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.Perhaps, described step c comprises: setting code---frequency sign mapping table, set encipheror, and described encipheror is: if the frequency of the program that request is play is identified in the mapping table, prompting input password; If the password not match of record is then refused to play in the password of input and the mapping table; Play if meet then.Perhaps, described step c comprises: setting code---frequency map, set encipheror, and described encipheror is: if the difference of frequency is less than preset value in the frequency of the program that request is play and the mapping table, prompting input password; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.Perhaps, described step c comprises: setting code---the frequency band mapping table, set encipheror, and described encipheror is: if the frequency of the program that request is play in the frequency band, is then pointed out the input password in mapping table; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
The present invention also provides a kind of video channel encryption device, comprises cipher input, CPU, memory, switching circuit, and described cipher input is used to input password;
The frequency of the program that described CPU is used to select sign, and the getting in touch of frequency sign of setting up password and selected program are called the encipheror module in the memory;
Described memory is used to store password---frequency sign mapping table and encipheror module; Described encipheror module is used for, and the frequency of the program of playing when request is identified in the mapping table prompting input password; The password not match that writes down in password of importing and mapping table is then refused to play; Play if meet then;
Described switching circuit is according to the output or the shielding of the commands for controlling TV signal of CPU.
Described cipher input comprises remote controller; Described memory is EEPROM.
The present invention also provides a kind of TV of encrypting, and is provided with the switching circuit that is subjected to the control of video channel encryption device in demodulator circuit, amplifying circuit or display circuit;
Described video channel encryption device comprises cipher input, CPU, memory, switching circuit, and described CPU is connected with memory, switching circuit respectively; Described cipher input comprises remote controller;
Described cipher input is used to input password;
The frequency of the program that described CPU is used to select sign, and the getting in touch of frequency sign of setting up password and selected program are called the encipheror module in the memory;
Described memory is used to store password---frequency sign mapping table and encipheror module; Described encipheror module is used for, and the frequency of the program of playing when request is identified in the mapping table prompting input password; The password not match that writes down in password of importing and mapping table is then refused to play; Play if meet then;
Described switching circuit is according to the output or the shielding of the commands for controlling TV signal of CPU.
" frequency sign " of the present invention is meant the sign that is used to distinguish each channel that is stored in the television set, as frequency, channel scanning voltage etc.Because the TV that has is recorded program numbering a---frequency map, the TV that also has is recorded program numbering---the corresponding relation of channel scanning voltage, because the frequency scanning in the machine has frequency---therefore the voltage corresponding relation, also can characterize frequency by scanning voltage.Because the corresponding relation of frequency data and channel scanning voltage data, this paper only provides the execution mode of direct recording frequency, and channel scanning voltage is similar with it.
The invention has the beneficial effects as follows, realization is to the encryption of some channel of not playing with coded signal, make the head of a family not worry that child is subjected to the influence of pornographic and splatter movie, the head of a family also is easy to mask the TV programme that those children are crazy about especially, and child can be absorbed in studies.And should invent with low cost, easy to implement.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is an encipheror flow chart of the present invention;
Fig. 2 is the 5th kind of execution mode structural representation of the present invention.
Fig. 3 is the 6th kind of execution mode structural representation of the present invention, and wherein switching circuit is arranged between demodulator circuit and the amplifying circuit;
Fig. 4 is the 6th kind of execution mode structural representation of the present invention, wherein switching circuit be arranged at that amplifying circuit and image show, between the audio output circuit.
Embodiment
The invention provides a kind of video channel encryption method, as first kind of execution mode, described encryption may further comprise the steps: a, the selected channel that needs encryption; The frequency of the channel that b, recording step a are selected; C, this frequency is encrypted.
Channel map that described step c comprises: setting code---frequency---is set encipheror: if the channel that request is play in mapping table, is pointed out the input password; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
As second kind of execution mode: a, the selected channel that needs encryption; The frequency of the channel that b, recording step a are selected; C, this frequency is encrypted.Described step c comprises: setting code---frequency map, set encipheror, and described encipheror is: if the frequency of the channel that request is play in mapping table, is pointed out the input password; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
As the third execution mode: a, the selected program that needs encryption; The frequency of the program that b, recording step a are selected; C, this frequency is encrypted.Described step c comprises: setting code---frequency map, and the setting encipheror, described encipheror is: if the difference of frequency is less than preset value in the frequency of the program that request is play and the mapping table, for example 2MHz then points out the input password; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
Channel is used for TV, promptly is implanted into the television channel encryption device at TV.As the 4th kind of execution mode: a, the selected program that needs encryption; The frequency of the program that b, recording step a are selected; C, this frequency is encrypted.Described step c comprises: setting code---frequency band mapping table (frequency band is a certain frequency range), set encipheror, and described encipheror is: if the frequency of the program that request is play in the frequency band, is then pointed out the input password in mapping table; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
As shown in Figure 1, the user switches to the program that will encrypt to channel, presses encryption key, and television set prompting user inputs password, treat that password confirming is correct after, TV set software is write down the frequency of current channel.When user's switching channels, whether the frequency that at every turn all needs to judge the channel that is switched and the program of encryption be consistent or difference is very little.If unanimity or difference are very little, illustrate that then this program encrypts.If encrypt, television set prompting user inputs password, if password is correct, and then frame out and sound normally; If password bad, TV are rejected this program.
The password of encrypting can be set and be revised in the setup menu of television set.Also can cancel the encryption set-up function, but the user must import Old Password.
The invention provides a kind of television channel encryption device.As the 5th kind of execution mode, as shown in Figure 2, comprise cipher input, CPU, memory, switching circuit, described CPU is connected with memory, switching circuit respectively, and described store memory contains password, frequency, channel map; Described CPU carries out encipheror; Described switching circuit is according to the output or the shielding of the commands for controlling TV signal of CPU; Described cipher input is remote controller and remote control receiving unit, also can realize the password input by panel operation.Described encipheror is the encipheror of describing in aforementioned the first～four kind of execution mode.Described memory is EEPROM.To those skilled in the art, realize that this device is very simple, does not repeat them here.
The present invention also provides a kind of TV that encryption function is arranged, as the 6th kind of execution mode.Described TV is equipped with the 4th kind of television channel encryption device described in the execution mode, in demodulator circuit or amplification, display circuit switching circuit is housed, as Fig. 3 or shown in Figure 4.Described switching circuit basis is from the output or the shielding of the signal controlling TV signal of encryption device CPU.
Claims (8)
1. the video channel encryption method is characterized in that, in television set predetermined channel is carried out encryption, and described encryption may further comprise the steps:
A, the selected program that needs encryption;
The frequency sign of the program that b, recording step a are selected;
The mapping table of c, setting code and described frequency sign is to this frequency mark encryption.
2. video channel encryption method as claimed in claim 1 is characterized in that, described step c comprises: setting code---channel map, set encipheror: if the channel that request is play in mapping table, is pointed out the input password; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
3. video channel encryption method as claimed in claim 1, it is characterized in that described step c comprises: setting code---frequency sign mapping table, set encipheror, described encipheror is: if the frequency of the program that request is play is identified in the mapping table, and prompting input password; If the password not match of record is then refused to play in the password of input and the mapping table; Play if meet then.
4. video channel encryption method as claimed in claim 1, it is characterized in that, described step c comprises: setting code---frequency map, set encipheror, described encipheror is: if the difference of frequency is less than preset value in the frequency of the program that request is play and the mapping table, and prompting input password; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
5. video channel encryption method as claimed in claim 1, it is characterized in that described step c comprises: setting code---the frequency band mapping table, set encipheror, described encipheror is: if the frequency of the program that request is play in the frequency band, is then pointed out the input password in mapping table; If the password not match of record then refuses to play the program of this frequency in the password of input and the mapping table; If meet the program of then playing this frequency.
6. the video channel encryption device is characterized in that, comprises cipher input, CPU, memory, switching circuit, and described CPU is connected with memory, switching circuit respectively; Described cipher input comprises remote controller;
Described cipher input is used to input password;
The frequency of the program that described CPU is used to select sign, and the getting in touch of frequency sign of setting up password and selected program are called the encipheror module in the memory;
Described memory is used to store password---frequency sign mapping table and encipheror module; Described encipheror module is used for, and the frequency of the program of playing when request is identified in the mapping table prompting input password; The password not match that writes down in password of importing and mapping table is then refused to play; Play if meet then;
Described switching circuit is according to the output or the shielding of the commands for controlling TV signal of CPU.
7. video channel encryption device as claimed in claim 6 is characterized in that, described memory is EEPROM.
8. the TV that can encrypt is characterized in that, is provided with the switching circuit that is subjected to the control of video channel encryption device in demodulator circuit, amplifying circuit or display circuit;
Described video channel encryption device comprises cipher input, CPU, memory, switching circuit, and described CPU is connected with memory, switching circuit respectively; Described cipher input comprises remote controller;
Described cipher input is used to input password;
The frequency of the program that described CPU is used to select sign, and the getting in touch of frequency sign of setting up password and selected program are called the encipheror module in the memory;
Described memory is used to store password---frequency sign mapping table and encipheror module; Described encipheror module is used for, and the frequency of the program of playing when request is identified in the mapping table prompting input password; The password not match that writes down in password of importing and mapping table is then refused to play; Play if meet then;
Described switching circuit is according to the output or the shielding of the commands for controlling TV signal of CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100409397A CN1604627B (en) | 2004-11-01 | 2004-11-01 | Video signal channel encrypting method, video signal channel encrypting device and encryptable television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100409397A CN1604627B (en) | 2004-11-01 | 2004-11-01 | Video signal channel encrypting method, video signal channel encrypting device and encryptable television |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1604627A CN1604627A (en) | 2005-04-06 |
| CN1604627B true CN1604627B (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100409397A Expired - Fee Related CN1604627B (en) | 2004-11-01 | 2004-11-01 | Video signal channel encrypting method, video signal channel encrypting device and encryptable television |
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| Country | Link |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931785B (en) * | 2010-08-27 | 2013-09-04 | 深圳市同洲电子股份有限公司 | Encrypting method of television programs, mobile terminal and system |
| CN102883230B (en) * | 2012-09-26 | 2015-04-29 | 深圳市九洲电器有限公司 | Method and device for controlling program broadcasting |
| WO2017028064A1 (en) * | 2015-08-14 | 2017-02-23 | 郭子明 | Method and television for prompting information when displaying hidden channel |
| WO2017028063A1 (en) * | 2015-08-14 | 2017-02-23 | 郭子明 | Method for displaying channel based on password, and television |
| CN105657544A (en) * | 2015-12-30 | 2016-06-08 | 深圳市九洲电器有限公司 | Television channel encryption method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192999Y (en) * | 1994-01-03 | 1995-03-22 | 李布尔 | Frequency channel lock for wire-TV |
| CN1359234A (en) * | 2002-01-15 | 2002-07-17 | Tcl王牌电子(深圳)有限公司 | Method for enciphering/deenciphering TV channel |
| US6732367B1 (en) * | 1998-11-30 | 2004-05-04 | United Video Properties, Inc. | Interactive television program guide system with title and description blocking |
-
2004
- 2004-11-01 CN CN2004100409397A patent/CN1604627B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192999Y (en) * | 1994-01-03 | 1995-03-22 | 李布尔 | Frequency channel lock for wire-TV |
| US6732367B1 (en) * | 1998-11-30 | 2004-05-04 | United Video Properties, Inc. | Interactive television program guide system with title and description blocking |
| CN1359234A (en) * | 2002-01-15 | 2002-07-17 | Tcl王牌电子(深圳)有限公司 | Method for enciphering/deenciphering TV channel |
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| CN1604627A (en) | 2005-04-06 |
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Granted publication date: 20110209 Termination date: 20211101 |