WO2001033553A2 - System and method of increasing the recognition rate of speech-input instructions in remote communication terminals - Google Patents
System and method of increasing the recognition rate of speech-input instructions in remote communication terminals Download PDFInfo
- Publication number
- WO2001033553A2 WO2001033553A2 PCT/EP2000/010742 EP0010742W WO0133553A2 WO 2001033553 A2 WO2001033553 A2 WO 2001033553A2 EP 0010742 W EP0010742 W EP 0010742W WO 0133553 A2 WO0133553 A2 WO 0133553A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- character sequence
- module
- character
- signal
- speech
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/271—Devices whereby a plurality of signals may be stored simultaneously controlled by voice recognition
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
-
- 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
Definitions
- the present invention relates to speech-input recognition in communication devices and more particularly to systems and methods for enhancing the accuracy of speech dialing systems in remote communication terminals.
- Remote communication terminals such as, for example, mobile telephones are ubiquitous in many modern industrialized countries. Most remote communication terminals utilize a keypad as an input device. However, keypads suffer from certain drawbacks. Foremost, the use of keypads may require a user to direct his or her attention to the communication device, if only for a brief moment. In certain circumstances, such as when driving, this is considered undesirable. Further, market forces continuously drive manufacturers to produce smaller remote telephone terminal devices, also referred to as handsets. Reducing the size of the terminal device renders keypad errors more likely, thereby reducing the accuracy of the keypad as an input device.
- U.S. Patent No. 4,959,850 to Kuniyoshi discloses a radio telephone apparatus that includes speech recognition capabilities for speech-based dialing of the phone.
- U.S. Patents No. 5,042,063 to Sakanishi and No. 4,870,686 to Gerson et al. disclose a telephone apparatus that utilizes speech recognition capabilities to allow speech-based dialing. Speech recognition functions are also disclosed in the following references: U.S. Patents No. 5,917,891 to Will; No. 5,884,257 to Maekawa et al.; No. 5,651,056 to Eting et al; No. 5,638,425 to Meador; No. 5,509,049 to Peterson; No. 5,495,553 to Jakatdar; and No. 5,303,299 to
- speech recognition is a difficult task, particularly when the speech signal is combined with ambient noise from the surrounding environment, such as automobile noise or street noise. Inadequate enunciation and/or interference from ambient noise may render a user's speech unrecognizable to the device. In speech- based dialing applications, this may result in the telephone device dialing an incorrect number. Alternatively, the telephone device may prompt the user to repeat the unrecognized digit(s), or the entire digit sequence. Depending upon the accuracy of the speech recognition system, the user may be required to repeat numbers a significant percentage of the time, rendering the speech-based dialing feature less convenient for the user.
- a remote terminal is adapted to use information stored in a memory to enhance the accuracy of the speech-recognition routine.
- the information includes a-priori information about phone numbers previously dialed from the remote terminal, which can be matched with phone numbers input by a speech-based dialing method to enhance the accuracy of the speech recognition system.
- the invention provides a system for facilitating speech-based dialing of a communication device.
- the system comprises a conversion module for receiving speech input representative of an input character sequence and generating a signal representative of each character in the input character sequence, a determining module for determining whether the input character sequence includes unrecognized characters, a memory module including a plurality of character sequences corresponding to network addresses, and a search module for searching the memory module for a character sequence having characters that correspond to recognized characters in the input character sequence.
- the search module can search the memory module for one or more character sequences in the memory module having characters that match the recognized characters of the input character sequence.
- the invention provides a method of facilitating speech- based calling in a communication device.
- the method comprises the steps of receiving a speech input representative of a desired character sequence, generating a signal representative of each character in the character sequence, determining whether the character sequence includes unrecognized characters, and if so, then searching a memory module for a matching character sequence having characters that correspond to recognized characters in the input character sequence, and generating a signal representative of a matching character sequence.
- Fig. 1 is a block diagram of an exemplary GSM communication suitable for implementing the present invention
- Fig. 2 is a flow chart illustrating a method of facilitating speech-based calling in a communication device according to an embodiment of the invention.
- Fig. 3 is a schematic depiction of a remote communication terminal according to an embodiment of the invention.
- Time Division Multiple Access Time Division Multiple Access
- GSM Global System for Mobile communications
- D-AMPS Digital- Advanced Mobile Phone System
- PDC Personal Digital Cellular
- TDMA time division multiple access
- FDMA frequency division multiple access
- CDMA code division multiple access
- GSM Global System for Mobile Communications
- a communication system 10 in which the present invention can be implemented is depicted.
- the system 10 is a hierarchical network with multiple levels for managing calls.
- remote communication terminals 12 operating within the system 10 participate in calls using time slots allocated to them on these frequencies.
- a group of Mobile Switching Centers (MSCs) 14 route calls from originators to destinations. In particular, these entities are responsible for setup, control and termination of calls.
- MSCs 14 commonly referred to as a gateway MSC, handles communication with a Public Switched Telephone Network (PSTN) 18, or other public and private networks.
- PSTN Public Switched Telephone Network
- Each of the MSCs 14 are connected to one or more base station controllers (BSCs) 16.
- BSCs base station controllers
- the BSC 16 communicates with a MSC 14 under a standard interface known as the A-interface, which is based on the Mobile
- Each of the BSCs 16 controls one or more base transceiver stations (BTSs) 20.
- Each BTS 20 includes one or more transceivers (TRXs) (not shown) that use the uplink and downlink radio frequencies (RF channels) to serve a particular geographical area, such as one or more communication cells 21.
- TRXs transceivers
- the BTSs 20 primarily provide the RF links for the transmission and reception of data bursts to and from the remote stations 12 within their respective cells.
- a number of BTSs 20 are incorporated into a radio base station (RBS) 22.
- the RBS 22 may be, for example, configured according to a family of RBS- 2000 products, which products are offered by Konaktiebolaget LM Ericsson, the assignee of the present invention.
- remote terminal 200 Accordingly, only those aspects of remote terminal 200 that are pertinent to the present invention are described in detail.
- the interested reader is referred to U.S. Patent No. 5,745,523 to Dent et al., the disclosure of which is incorporated here by reference.
- remote terminal 200 includes, in relevant part, a microphone 210 for receiving speech input from a user of the phone. Microphone 210 is connected to conversion module 220. Conversion module 220 may comprise an analog to digital (A/D) converter 224 for converting analog speech input to a digital signal. Conversion module 220 may also include an automatic speech recognition (ASR) module 228 for recognizing the speech of the user. Remote terminal 200 further includes a determining module 230 for determining whether a character spoken by the user was recognized by ASR module 228 with a desired degree of accuracy. Remote terminal 200 further includes a memory module 250 for storing character sequences that represent valid phone numbers, and a search module 240 for searching memory module 250. Remote terminal 200 also includes a connection module 260 for establishing a communication connection with a communication network such as, for example, a GSM network as depicted in Fig. 1.
- ASR automatic speech recognition
- Remote terminal 200 further includes a suitable display 270 (e.g., an LED or LCD display) for displaying information to a user.
- a suitable display 270 e.g., an LED or LCD display
- One terminal with a suitable speech recognition module is the T28 commercially available from Ericsson.
- modules 220-260 may be embodied in a suitable application specific integrated circuit (ASIC) or a programmed digital signal processor (DSP), or by a chip set comprising a plurality of ASICs. Electrical connections are formed between the respective modules 220-260 and other components of the remote terminal. For example, determining module 230 and search module 240 are electrically connected to display 270, to speaker 280, and to connection module 260.
- ASIC application specific integrated circuit
- DSP programmed digital signal processor
- an electrical connection between memory module 250 and connection module 260 allows memory module 250 to store telephone numbers associated with connections established by remote terminal
- memory module 250 maintains a list of previously-dialed telephone numbers that can be used as a- priori information to enhance the accuracy of speech-based dialing, as described below.
- Fig. 3 illustrates a method for speech-based dialing according to an embodiment of the invention.
- the method includes receiving a spoken character from a user, converting the character to a digital signal, and determining whether the character sequence is complete. If the character sequence is not complete, the system iteratively receives additional characters and converts the characters to a digital signal. After a complete character sequence has been received, the system determines whether the character sequence includes one or more unrecognized characters. If the character sequence does not include unrecognized characters, then the character sequence may be transmitted to a module (e.g., a connection module) that enables the phone to dial the number corresponding to the recognized character sequence.
- a module e.g., a connection module
- a search module is invoked.
- the search module compares the recognized digits in the character sequence with corresponding digits in character sequences in an associated memory to determine whether a character sequence in memory is a likely match with the character sequence input by the user.
- the character sequence may be transmitted to a module that enables the phone to dial the number corresponding to the recognized character sequence.
- the character sequence may be displayed or audibly presented to the user of the phone, who can indicate whether the character sequence does, in fact, match the desired character sequence. This process will be explained in greater detail below.
- the process set forth in Fig. 3 may be implemented in a remote communication terminal, e.g., a mobile phone, having a speech-based dialing feature.
- a remote communication terminal e.g., a mobile phone
- the speech-based dialing feature is activated and the remote terminal receives speech input representative of a first character in a character sequence.
- the character preferably represents one digit of the well-known ten-digit dialing format (e.g., xxx-xxx-xxxx).
- the character sequence could be in a format adapted for a dialing system of a different geographic region, or, in a data application, could represent a network address in a data network (e.g., a URL or an IP address).
- the character sequence may represent commands addressed to the remote terminal, or a memory location that includes a number for speed dialing.
- the received character is converted to a digital signal representative of the character spoken by the user. Conversion may be accomplished using an analog-to-digital (A/D) converter in combination with a suitable ASR module. Many ASR modules implement statistical procedures for reporting reliability metrics of the determination made for a particular character.
- A/D analog-to-digital
- Desired reliability rates may be programmed into the ASR module's logic, or may be selectable by the user and input to the system as a parameter.
- ASR modules are known in the art, and particular details of the ASR module are not critical to the invention.
- a test is performed to determine whether the character sequence input is complete. For example, in the United States telephone system, which uses a ten character format, the character sequence may be considered complete at the entry of the tenth character. In an alternate embodiment, the determination step may use a time-out procedure, such that the character sequence is assumed to be complete if a predetermined time elapses after the entry of a particular character.
- a user may actively indicate that the character sequence is complete, either by pressing a designated key or by speaking a designated code.
- One of ordinary skill in the art will recognize numerous other ways to detect the end of an input character sequence. If the character sequence is not complete, then steps 310 through 330 may be repeated until the character sequence is complete, or the user indicates a desire to cancel the speech input process.
- a test is conducted to determine whether the character sequence includes one or more unrecognized characters.
- the term "unrecognized character” shall refer to a character in the character sequence that is not validated by the ASR module.
- the system may test to determine whether a reliability metric associated with one or more characters in the character sequence is less than a predetermined threshold (e.g., 95%, or 90%), and, if so, then the character sequence may be characterized as having unrecognized characters. Additional tests may also be applied.
- a predetermined threshold e.g. 95%, or 90%
- the character sequence may be characterized as having unrecognized characters. If the character sequence does not include unrecognized characters, then at step 380, the character sequence is dialed and remote terminal 200 attempts to establish a connection with the network.
- a memory module associated with the remote terminal is searched to determine whether a character sequence in the memory module matches the recognized characters in the character sequence input by the user. If at step 360, a match is found, then the character sequence is retrieved from memory and optionally may be presented to the user, at step 370. In one embodiment, the character sequence is visually presented to the user, such as by display on a LCD or other suitable display. In another embodiment, a speech synthesizer presents the character sequence to the user audibly. Upon receiving an indication of approval from the user, the character sequence is dialed at step 380. It will be recognized that some or all of steps 310 through 380 may be performed by a suitable ASIC, DSP, or chip set, or by logic instructions operating on a general purpose processor.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001535162A JP2003513341A (en) | 1999-11-04 | 2000-10-31 | System and method for increasing recognition rate of voice input command in telecommunications terminal |
EP00975973A EP1226576A2 (en) | 1999-11-04 | 2000-10-31 | System and method of increasing the recognition rate of speech-input instructions in remote communication terminals |
AU13905/01A AU1390501A (en) | 1999-11-04 | 2000-10-31 | System and method of increasing the recognition rate of speech-input instructions in remote communication terminals |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43414199A | 1999-11-04 | 1999-11-04 | |
US09/434,141 | 1999-11-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001033553A2 true WO2001033553A2 (en) | 2001-05-10 |
WO2001033553A3 WO2001033553A3 (en) | 2001-11-29 |
Family
ID=23722981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/010742 WO2001033553A2 (en) | 1999-11-04 | 2000-10-31 | System and method of increasing the recognition rate of speech-input instructions in remote communication terminals |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1226576A2 (en) |
JP (1) | JP2003513341A (en) |
CN (1) | CN1191566C (en) |
AU (1) | AU1390501A (en) |
WO (1) | WO2001033553A2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100412474B1 (en) * | 2001-06-28 | 2003-12-31 | 유승혁 | a Phone-book System and Management Method Of Telephone and Mobile-Phone used to Voice Recognition and Remote Phone-book Server |
WO2006023806A2 (en) * | 2004-08-23 | 2006-03-02 | Exbiblio B.V. | A method and system for character recognition |
US7162424B2 (en) | 2001-04-26 | 2007-01-09 | Siemens Aktiengesellschaft | Method and system for defining a sequence of sound modules for synthesis of a speech signal in a tonal language |
KR100869878B1 (en) * | 2001-12-31 | 2008-11-24 | 주식회사 케이티 | System for generating pronunciation dictionary in intelligent network services using voice recognition and method for using the same system |
US8442331B2 (en) | 2004-02-15 | 2013-05-14 | Google Inc. | Capturing text from rendered documents using supplemental information |
US9030699B2 (en) | 2004-04-19 | 2015-05-12 | Google Inc. | Association of a portable scanner with input/output and storage devices |
US9075779B2 (en) | 2009-03-12 | 2015-07-07 | Google Inc. | Performing actions based on capturing information from rendered documents, such as documents under copyright |
US9081799B2 (en) | 2009-12-04 | 2015-07-14 | Google Inc. | Using gestalt information to identify locations in printed information |
US10769431B2 (en) | 2004-09-27 | 2020-09-08 | Google Llc | Handheld device for capturing text from both a document printed on paper and a document displayed on a dynamic display device |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10635723B2 (en) | 2004-02-15 | 2020-04-28 | Google Llc | Search engines and systems with handheld document data capture devices |
US9116890B2 (en) | 2004-04-01 | 2015-08-25 | Google Inc. | Triggering actions in response to optically or acoustically capturing keywords from a rendered document |
US20070300142A1 (en) | 2005-04-01 | 2007-12-27 | King Martin T | Contextual dynamic advertising based upon captured rendered text |
US20080313172A1 (en) | 2004-12-03 | 2008-12-18 | King Martin T | Determining actions involving captured information and electronic content associated with rendered documents |
US9143638B2 (en) | 2004-04-01 | 2015-09-22 | Google Inc. | Data capture from rendered documents using handheld device |
US8874504B2 (en) | 2004-12-03 | 2014-10-28 | Google Inc. | Processing techniques for visual capture data from a rendered document |
US8620083B2 (en) | 2004-12-03 | 2013-12-31 | Google Inc. | Method and system for character recognition |
US8346620B2 (en) | 2004-07-19 | 2013-01-01 | Google Inc. | Automatic modification of web pages |
EP2406767A4 (en) | 2009-03-12 | 2016-03-16 | Google Inc | Automatically providing content associated with captured information, such as information captured in real-time |
US9323784B2 (en) | 2009-12-09 | 2016-04-26 | Google Inc. | Image search using text-based elements within the contents of images |
DE102014200570A1 (en) * | 2014-01-15 | 2015-07-16 | Bayerische Motoren Werke Aktiengesellschaft | Method and system for generating a control command |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0425291A2 (en) * | 1989-10-25 | 1991-05-02 | Xerox Corporation | Word recognition process and apparatus |
DE19532114A1 (en) * | 1995-08-31 | 1997-03-06 | Deutsche Telekom Ag | Telephone speech dialogue method for automated output of dialling numbers and locations |
EP0844583A2 (en) * | 1996-11-20 | 1998-05-27 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for character recognition |
WO1999035806A1 (en) * | 1998-01-09 | 1999-07-15 | Alcatel Usa, Inc. | Method and system for totally voice activated dialing |
-
2000
- 2000-10-31 JP JP2001535162A patent/JP2003513341A/en not_active Withdrawn
- 2000-10-31 EP EP00975973A patent/EP1226576A2/en not_active Withdrawn
- 2000-10-31 CN CNB008153701A patent/CN1191566C/en not_active Expired - Fee Related
- 2000-10-31 AU AU13905/01A patent/AU1390501A/en not_active Abandoned
- 2000-10-31 WO PCT/EP2000/010742 patent/WO2001033553A2/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0425291A2 (en) * | 1989-10-25 | 1991-05-02 | Xerox Corporation | Word recognition process and apparatus |
DE19532114A1 (en) * | 1995-08-31 | 1997-03-06 | Deutsche Telekom Ag | Telephone speech dialogue method for automated output of dialling numbers and locations |
EP0844583A2 (en) * | 1996-11-20 | 1998-05-27 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for character recognition |
WO1999035806A1 (en) * | 1998-01-09 | 1999-07-15 | Alcatel Usa, Inc. | Method and system for totally voice activated dialing |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7162424B2 (en) | 2001-04-26 | 2007-01-09 | Siemens Aktiengesellschaft | Method and system for defining a sequence of sound modules for synthesis of a speech signal in a tonal language |
KR100412474B1 (en) * | 2001-06-28 | 2003-12-31 | 유승혁 | a Phone-book System and Management Method Of Telephone and Mobile-Phone used to Voice Recognition and Remote Phone-book Server |
KR100869878B1 (en) * | 2001-12-31 | 2008-11-24 | 주식회사 케이티 | System for generating pronunciation dictionary in intelligent network services using voice recognition and method for using the same system |
US8442331B2 (en) | 2004-02-15 | 2013-05-14 | Google Inc. | Capturing text from rendered documents using supplemental information |
US9030699B2 (en) | 2004-04-19 | 2015-05-12 | Google Inc. | Association of a portable scanner with input/output and storage devices |
WO2006023806A2 (en) * | 2004-08-23 | 2006-03-02 | Exbiblio B.V. | A method and system for character recognition |
WO2006023806A3 (en) * | 2004-08-23 | 2010-09-10 | Exbiblio B.V. | A method and system for character recognition |
US10769431B2 (en) | 2004-09-27 | 2020-09-08 | Google Llc | Handheld device for capturing text from both a document printed on paper and a document displayed on a dynamic display device |
US9075779B2 (en) | 2009-03-12 | 2015-07-07 | Google Inc. | Performing actions based on capturing information from rendered documents, such as documents under copyright |
US9081799B2 (en) | 2009-12-04 | 2015-07-14 | Google Inc. | Using gestalt information to identify locations in printed information |
Also Published As
Publication number | Publication date |
---|---|
WO2001033553A3 (en) | 2001-11-29 |
CN1387663A (en) | 2002-12-25 |
EP1226576A2 (en) | 2002-07-31 |
AU1390501A (en) | 2001-05-14 |
JP2003513341A (en) | 2003-04-08 |
CN1191566C (en) | 2005-03-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001033553A2 (en) | System and method of increasing the recognition rate of speech-input instructions in remote communication terminals | |
US6782278B2 (en) | Dialing method for dynamically simplifying international call in cellular phone | |
US7643619B2 (en) | Method for offering TTY/TDD service in a wireless terminal and wireless terminal implementing the same | |
KR100617784B1 (en) | Apparatus and method for searching telephone number in mobile terminal equipment | |
US6751481B2 (en) | Dialing method for effecting international call in intelligent cellular phone | |
JP2008523770A (en) | Method and apparatus for supporting enhanced international dialing in cellular systems | |
US20050288926A1 (en) | Network support for wireless e-mail using speech-to-text conversion | |
KR100393398B1 (en) | Systems and methods for generating current time in cellular wireless telephones | |
US6122485A (en) | Method and system for confirming receipt of a message by a message reception unit | |
RU98108604A (en) | METHOD AND DEVICE FOR ENSURING THE IMPROVED INTERFACE OF THE CALLING SUBSCRIBER IN THE STATIONARY CELLULAR COMMUNICATION SYSTEM | |
EP1751742A1 (en) | Mobile station and method for transmitting and receiving messages | |
US7043436B1 (en) | Apparatus for synthesizing speech sounds of a short message in a hands free kit for a mobile phone | |
JP2002171332A (en) | Communication terminal equipment | |
EP1244260B1 (en) | Communication terminal unit capable of receiving a message and method for identifying a message sender in the same | |
US20030013494A1 (en) | Mobile radio terminal equipment | |
US7561873B2 (en) | Mobile handset as TTY device | |
EP1657893A1 (en) | Apparatus and method for reporting incoming call or message reception through voice synthesis in mobile communication terminal | |
KR20070065688A (en) | Method and mobile communication terminal for displaying sms message received during video communication | |
KR100981896B1 (en) | Method and system for international dialing over a cdma air interface | |
US20040204033A1 (en) | Communication device connected to a first and a second communication networks | |
US20050107112A1 (en) | Apparatus, and an associated method, for creating and using a call-screening list to screen calls placed to a communication station | |
KR20020006864A (en) | Method of Changing Telephone signals | |
JPH0818501A (en) | Radio communication system and radio communication terminal equipment | |
WO1999001865A1 (en) | Digital cellular phone with voice recognition function and method for controlling the same | |
KR100658889B1 (en) | Method for generating a receiving ring in a mobile communication system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ CZ DE DE DK DK DM DZ EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ CZ DE DE DK DK DM DZ EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2001 535162 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000975973 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 008153701 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2000975973 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000975973 Country of ref document: EP |