WO1999001865A1 - Digital cellular phone with voice recognition function and method for controlling the same - Google Patents
Digital cellular phone with voice recognition function and method for controlling the same Download PDFInfo
- Publication number
- WO1999001865A1 WO1999001865A1 PCT/KR1998/000195 KR9800195W WO9901865A1 WO 1999001865 A1 WO1999001865 A1 WO 1999001865A1 KR 9800195 W KR9800195 W KR 9800195W WO 9901865 A1 WO9901865 A1 WO 9901865A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- feature data
- voice
- voice recognition
- cellular phone
- data
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/6075—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/74—Details of telephonic subscriber devices with voice recognition means
Definitions
- the present invention relates to a digital cellular phone, and in particular, to a digital cellular phone having voice recognition capabilities and a method for controlling the same.
- a voice recognition apparatus extracts features such as a frequency feature from an input voice signal to recognize the input voice.
- Such voice recognition apparatus requires significant processing power to process the large amount of voice signals. The amount of processing power needed would overload a typical digital cellular phone. Thus, the conventional voice recognition apparatus is unsuitable for a conventional digital cellular phone.
- a known voice recognition method for solving the overload problem of the digital cellular phone utilizes a hands-free kit with the voice recognition function.
- the hands-free kit includes a digital signal processor (DSP) and a nonvolatile memory (e.g., flash memory or EEPROM
- the DSP in the hands-free kit processes compressed voice signal or original voice signal to recognize the input voice, and provides the recognized voice signal to the cellular phone. In this manner, the hands-free kit recognizes the voice for a telephone number uttered by the user, and the cellular phone dials the telephone number according to the recognized voice signal provided from the hands- free kit.
- FIG. 1 shows a block diagram of a conventional voice recognition apparatus which may be installed in the hands-free kit.
- an analog signal input from a microphone 30 is converted to a digital PCM (Pulse Code Modulation) signal by an analog-to-digital (A/D) converter 20, and provided to a processor 10 which performs the voice recognition function.
- the processor 10 may be realized by an 80186 chip or a DSP chip.
- This conventional voice recognition apparatus has drawbacks which include: (1) significant processing demand, rendering it unsuitable for the digital cellular phone; (2) the processing requirement of the voice recognition apparatus poses a severe processing load on the cellular phone and may obstruct operation of the cellular phone; (3) the voice recognition apparatus requires a separate memory for the voice recognition function. Therefore, the hands-free kit requires a separate nonvolatile memory such as an EEPROM; (4) the voice recognition apparatus requires a separate processor such as a DSP for realizing the voice recognition function; and (5) if the voice recognition apparatus is installed in the hands-free kit, the voice recognition can be implemented through the hands-free kit only. Thus, when separated from the hands-free kit, the cellular phone cannot recognize the voice.
- the present invention provides a cellular phone with a voice recognition function having a vocoder for compressing a voice signal input from a microphone to output packet data.
- a nonvolatile memory stores the packet data and feature data corresponding thereto.
- a voice recognition device extracts the feature data from the packet data output from the vocoder, and compares the feature data with feature data registered in the nonvolatile memory to detect the registered feature data similar to the input feature data and a difference value therebetween.
- a microprocessor stores the packet data and the feature data in the nonvolatile memory in the voice registration mode, and receives an index for the similar feature data and a difference value from the voice recognition device in the voice recognition mode to determine whether an input voice signal is recognized successfully.
- FIG. 1 is a block diagram of a conventional voice recognition apparatus
- FIG. 2 is a block diagram of a digital cellular phone with a voice recognition function according to an embodiment of the present invention
- FIG. 3 is a diagram illustrating a memory map of a first memory (60) of FIG. 2;
- FIG. 4 is a flow chart for registering and recognizing a voice signal according to an embodiment of the present invention.
- FIG. 2 illustrates a digital cellular phone with a voice recognition function according to an embodiment of the present invention.
- An RF (Radio Frequency) circuit and a DTMF (Dual Tone Multi- Frequency) circuit could have been included in FIG. 2 but are not shown because they are not related to the gist of the present invention.
- an analog voice signal input from a microphone 30 is converted to a digital PCM signal by an A/D converter 20.
- a vocoder 45 compresses the PCM signal output from the A/D converter 20 and outputs packet data PKT.
- the vocoder 45 can be realized by an 8Kbps QCELP (Qualcomm Code Excited
- Linear Prediction encoder a 13Kbps QCELP encoder, or an
- 8Kbps EVRC (Enhanced Variable Rate Coding) encoder 8Kbps EVRC (Enhanced Variable Rate Coding) encoder.
- the vocoder 45 can be realized by an RPE-LTP
- the packet data PKT output from the vocoder 45 is applied to a microprocessor 50 which controls the overall operations of the cellular phone.
- a first memory 60 being a nonvolatile memory (e.g., a flash memory or EEPROM) stores data and software programs including a control program and initial service data.
- a second memory 65 is a RAM (Random Access Memory) for temporarily storing data including packet data for a voice signal to be registered or recognized and various data generated during operation of the cellular phone.
- a voice recognition device 85 extracts the feature data from the input voice signals and outputs the feature data, preferably at a transfer rate of several tens to several hundreds of bytes per second.
- the feature data includes the frequency feature and the intensity of the input voice signal.
- the voice recognition device 85 can be realized by either hardware or software.
- the software program for realizing the voice recognition device 85 can be stored in the first memory 60.
- the microprocessor 50 delivers the packet data PKT output from the vocoder 45 to the voice recognition device 85.
- the voice recognition device generates and outputs the feature data to the microprocessor 50.
- the microprocessor 50 extracts the reference feature data previously registered or stored in the first memory 60 and compares them with the feature data from the voice recognition device 85. From the comparison, the microprocessor decides and dials the telephone number corresponding to the chosen reference feature data. Preferably, the decision of the comparison is based on a difference value between the two feature data.
- the microprocessor 50 stores the packet data output from the vocoder 45 in a specific storage area of the first memory 60, and reads it from the first memory 60 when informing the user that the voice recognition is completed.
- the read packet data is called the voice playback data VP.
- the vocoder 45 converts the voice playback data VP to a PCM signal and applies it to a digital-to-analog (D/A) converter 75, which converts the input PCM signal to an analog signal and outputs the converted analog signal to a speaker 80.
- D/A digital-to-analog
- a voice message informing completion of the voice recognition may also be stored in the first memory 60.
- a hands-free kit connector 500 connects the hands-free kit to the cellular phone to transfer a voice signal input from a microphone of the hands-free kit to the vocoder 45 via the A/D converter 20. Further, when connected to the hands-free kit, the hands-free kit connector 500 cuts off a signal path between a microphone of the cellular phone and the vocoder 45.
- FIG. 3 shows a memory map of the first memory 60 according to an embodiment of the present invention.
- the first memory 60 is divided into a first storage area SA1 for the control program, a second storage area SA2 for the feature data, a third storage area SA3 for the voice playback data, a fourth storage area SA4 for the telephone number, and a fifth storage area SA5 for the voice message.
- a reference character ADD denotes an address signal input from the microprocessor 50.
- FIG. 4 is a flow chart for registering and recognizing a voice signal according to an embodiment of the present invention.
- the user of the cellular phone will press a voice dialing key.
- the microprocessor 50 Upon detection of key data for the voice dialing, the microprocessor 50 will enter a voice recognition mode in step 4a.
- the user After pressing the voice dialing key, the user will press a voice registration key to register a unregistered name in the first memory 60 or press a voice recognition key to dial by voice a telephone number for a registered name to whom he wants to call.
- the microprocessor 50 determines in step 4b which of these keys the user has pressed.
- the microprocessor 50 checks in step 4c whether the valid packet data for the user's voice is input from the vocoder 45. If the valid packet data is input, the microprocessor 50 provides the input packet data to the voice recognition device 85 in step 4d, and stores the packet data in the third storage area SA3 of the first memory 60 as the voice playback data VP in step 4e. Thereafter, the microprocessor 50 checks in step 4f whether the feature data for the input voice is input from the voice recognition device 85. If the feature data is input, the microprocessor 50 stores the input feature data in the second storage area SA2 of the first memory 60. It is noted that the sequence of the steps 4e and 4f may be inverted or these two steps may be performed in parallel.
- the microprocessor 50 checks in step 4h whether the valid packet data for the user's voice is input from the vocoder 45. If the valid packet data is input, the microprocessor 50 provides the input packet data to the voice recognition device 85 in step 4i. After that, the microprocessor 50 checks in step 4j whether the feature data for the input voice is input from the voice recognition device 85. Upon receipt of the feature data, the microprocessor 50 temporarily stores it in the second memory 65. Further, in the step 4j , the microprocessor 50 checks whether an index for similar feature data and a difference value are input from the voice recognition device 85.
- the index for the similar feature data refers to an index for the feature data registered in the first memory 60 which is similar to the feature data for the currently input voice
- the difference value refers to a difference value between the registered feature data and the feature data from the voice recognition device 85.
- the microprocessor 50 Upon receipt of the index and the difference value, the microprocessor 50 checks in step 4k whether the difference value is smaller than a threshold value or a permissable error range. If the difference value is smaller than the threshold value, the microprocessor 50 outputs the voice playback data to the speaker 80 according to the index in step 41, judging that the input voice is correctly recognized.
- the microprocessor 50 reads from the fifth storage area SA5 of the first memory 60 a voice message informing that the input voice is not registered in the cellular phone and provides the read voice message to the vocoder 45, in step 4m. Then, the voice message read from the first memory 60 is processed by the vocoder 45, converted to an analog signal by the D/A converter 75, and output to the speaker 80.
- the corresponding telephone number is also registered in the fourth storage area SA4 of the first memory 60, so that the microprocessor 50 may read and dial the registered telephone number by means of the DTMF (not shown) circuit when the user inputs the registered voice.
- the voice recognition device 85 may extract two or more sets of the feature data for the same voice and store them in the second storage area SA2 of the first memory 60, so as to improve reliability of the voice recognition function.
- the cellular phone of the invention uses the packet data output from the vocoder so that it can, with a simple operation, recognize the voice. Further, the cellular phone utilizes the built-in vocoder and memory for voice recognition. Advantageously, the cellular phone has integrated voice recognition capabilities which can be compactly built. The external hands-free kit may selectively be dispensed within.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9810670-8A BR9810670A (en) | 1997-07-04 | 1998-07-04 | Digital cell phone having a voice picker, and, speech recognition processes in a digital cell phone having a memory and a voice encoder and to control a cell phone with a voice recognition function. |
AU82446/98A AU733849B2 (en) | 1997-07-04 | 1998-07-04 | Digital cellular phone with voice recognition function and method for controlling the same |
IL13384298A IL133842A (en) | 1997-07-04 | 1998-07-04 | Digital cellular phone with voice recognition function and method for controlling the same |
CA002295727A CA2295727A1 (en) | 1997-07-04 | 1998-07-04 | Digital cellular phone with voice recognition function and method for controlling the same |
JP50693599A JP2002507292A (en) | 1997-07-04 | 1998-07-04 | Digital portable telephone having voice recognition function and control method thereof |
EP98932605A EP0993673A1 (en) | 1997-07-04 | 1998-07-04 | Digital cellular phone with voice recognition function and method for controlling the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1997/30979 | 1997-07-04 | ||
KR1019970030979A KR100264852B1 (en) | 1997-07-04 | 1997-07-04 | Apparatus for recognizing a voice in a digital cellular telephone and method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999001865A1 true WO1999001865A1 (en) | 1999-01-14 |
Family
ID=19513374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR1998/000195 WO1999001865A1 (en) | 1997-07-04 | 1998-07-04 | Digital cellular phone with voice recognition function and method for controlling the same |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0993673A1 (en) |
JP (1) | JP2002507292A (en) |
KR (1) | KR100264852B1 (en) |
CN (1) | CN1175397C (en) |
AU (1) | AU733849B2 (en) |
BR (1) | BR9810670A (en) |
CA (1) | CA2295727A1 (en) |
IL (1) | IL133842A (en) |
PE (1) | PE102499A1 (en) |
RU (1) | RU2199822C2 (en) |
WO (1) | WO1999001865A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6339706B1 (en) | 1999-11-12 | 2002-01-15 | Telefonaktiebolaget L M Ericsson (Publ) | Wireless voice-activated remote control device |
US6690954B2 (en) * | 1999-07-28 | 2004-02-10 | Mitsubishi Denki Kabushiki Kaisha | Portable telephone |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7941313B2 (en) * | 2001-05-17 | 2011-05-10 | Qualcomm Incorporated | System and method for transmitting speech activity information ahead of speech features in a distributed voice recognition system |
JP2004287674A (en) * | 2003-03-20 | 2004-10-14 | Nec Corp | Information processing apparatus, unauthorized use prevention method, and program |
KR100547858B1 (en) * | 2003-07-07 | 2006-01-31 | 삼성전자주식회사 | Mobile terminal and method capable of text input using voice recognition function |
CN105391873A (en) * | 2015-11-25 | 2016-03-09 | 上海新储集成电路有限公司 | Method for realizing local voice recognition in mobile device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5450525A (en) * | 1992-11-12 | 1995-09-12 | Russell; Donald P. | Vehicle accessory control with manual and voice response |
WO1997012361A1 (en) * | 1995-09-29 | 1997-04-03 | At & T Corp. | Telephone network service for converting speech to touch-tones |
-
1997
- 1997-07-04 KR KR1019970030979A patent/KR100264852B1/en not_active IP Right Cessation
-
1998
- 1998-07-03 PE PE1998000596A patent/PE102499A1/en not_active Application Discontinuation
- 1998-07-04 RU RU99128050/09A patent/RU2199822C2/en not_active IP Right Cessation
- 1998-07-04 CA CA002295727A patent/CA2295727A1/en not_active Abandoned
- 1998-07-04 JP JP50693599A patent/JP2002507292A/en active Pending
- 1998-07-04 CN CNB988068443A patent/CN1175397C/en not_active Expired - Fee Related
- 1998-07-04 EP EP98932605A patent/EP0993673A1/en not_active Withdrawn
- 1998-07-04 IL IL13384298A patent/IL133842A/en not_active IP Right Cessation
- 1998-07-04 AU AU82446/98A patent/AU733849B2/en not_active Ceased
- 1998-07-04 BR BR9810670-8A patent/BR9810670A/en not_active IP Right Cessation
- 1998-07-04 WO PCT/KR1998/000195 patent/WO1999001865A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5450525A (en) * | 1992-11-12 | 1995-09-12 | Russell; Donald P. | Vehicle accessory control with manual and voice response |
WO1997012361A1 (en) * | 1995-09-29 | 1997-04-03 | At & T Corp. | Telephone network service for converting speech to touch-tones |
Non-Patent Citations (1)
Title |
---|
DATABASE WPIL ON QUESTEL, week 9714, LONDON: DERWENT PUBLICATIONS LTD., AN 97-152448, Class H04B; & KR,B,95 07091 (LG COMMUNICATIONS CO., LTD.) 30 June 1995. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6690954B2 (en) * | 1999-07-28 | 2004-02-10 | Mitsubishi Denki Kabushiki Kaisha | Portable telephone |
US6339706B1 (en) | 1999-11-12 | 2002-01-15 | Telefonaktiebolaget L M Ericsson (Publ) | Wireless voice-activated remote control device |
Also Published As
Publication number | Publication date |
---|---|
RU2199822C2 (en) | 2003-02-27 |
KR19990008840A (en) | 1999-02-05 |
CN1175397C (en) | 2004-11-10 |
PE102499A1 (en) | 1999-12-29 |
IL133842A (en) | 2004-07-25 |
EP0993673A1 (en) | 2000-04-19 |
AU8244698A (en) | 1999-01-25 |
IL133842A0 (en) | 2001-04-30 |
KR100264852B1 (en) | 2000-09-01 |
CA2295727A1 (en) | 1999-01-14 |
AU733849B2 (en) | 2001-05-31 |
BR9810670A (en) | 2000-09-26 |
JP2002507292A (en) | 2002-03-05 |
CN1272198A (en) | 2000-11-01 |
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