公开(公告)号：DE69428606D1

公开(公告)日：2001-11-15

申请号：DE69428606

申请日：1994-09-21

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： SCHALK B

IPC: G07C9/00 ,  G10L17/00 ,  H04M3/38 ,  G10L15/02 ,  H04M1/64 ,  H04M1/66

Abstract: The present invention describes a system and method for enabling a caller to obtain access to services via a telephone network by entering a spoken first character string having a plurality of digits. Preferably, the method includes the steps of prompting the caller to speak the first character string beginning with a first digit and ending with a last digit thereof, recognizing each spoken digit of the first character string using a speaker-independent voice recognition algorithm, and then following entry of the last digit of the first string, initially verifying the caller's identity using a voice verification algorithm. After initial verification, the caller is again prompted to enter a second character string, which must also be recognized before access is effected.

公开(公告)号：ES2156871T3

公开(公告)日：2001-08-01

申请号：ES93910598

申请日：1993-04-13

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： BAREIS BERNARD F ,  FOSTER PETER J ,  SCHALK THOMAS B

IPC: H04B7/185 ,  H04M3/42 ,  H04M3/493 ,  H04M11/10 ,  H04W4/00 ,  H04W4/18 ,  H04W88/18 ,  H04M11/00 ,  H04Q7/00 ,  H04B1/00 ,  H04Q7/20

Abstract: Voice activated dialing is described for use in a mobile telecommunications system. A voice input is received from a wireless network user. A telephone number to be dialed is determined by using speaker independent speech recognition to interpret a string of spoken digits in the voice input to determine the telephone number, or using speaker dependent speech recognition to interpret a spoken word in the voice input to determine the telephone number. A telephone call is then initiated by dialing the telephone number.

公开(公告)号：DE69428606T2

公开(公告)日：2002-06-20

申请号：DE69428606

申请日：1994-09-21

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： SCHALK B

IPC: G07C9/00 ,  G10L17/00 ,  H04M3/38 ,  G10L15/02 ,  H04M1/64 ,  H04M1/66

Abstract: The present invention describes a system and method for enabling a caller to obtain access to services via a telephone network by entering a spoken first character string having a plurality of digits. Preferably, the method includes the steps of prompting the caller to speak the first character string beginning with a first digit and ending with a last digit thereof, recognizing each spoken digit of the first character string using a speaker-independent voice recognition algorithm, and then following entry of the last digit of the first string, initially verifying the caller's identity using a voice verification algorithm. After initial verification, the caller is again prompted to enter a second character string, which must also be recognized before access is effected.

公开(公告)号：DE69329850T2

公开(公告)日：2001-07-19

申请号：DE69329850

申请日：1993-04-13

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： BAREIS F ,  FOSTER J ,  SCHALK B

IPC: H04B7/185 ,  H04M3/42 ,  H04M3/493 ,  H04M11/10 ,  H04W4/00 ,  H04W4/18 ,  H04W88/18 ,  H04M11/00 ,  H04Q7/00 ,  H04B1/00 ,  H04Q7/20

Abstract: Voice activated dialing is described for use in a mobile telecommunications system. A voice input is received from a wireless network user. A telephone number to be dialed is determined by using speaker independent speech recognition to interpret a string of spoken digits in the voice input to determine the telephone number, or using speaker dependent speech recognition to interpret a spoken word in the voice input to determine the telephone number. A telephone call is then initiated by dialing the telephone number.

公开(公告)号：CA2118135C

公开(公告)日：2000-06-13

申请号：CA2118135

申请日：1993-04-13

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： BAREIS BERNARD F ,  FOSTER PETER J ,  SCHALK THOMAS B

IPC: H04B7/185 ,  H04M3/42 ,  H04M3/493 ,  H04M11/10 ,  H04W4/00 ,  H04W4/18 ,  H04W88/18 ,  H04B7/26 ,  H04M1/66

Abstract: An advanced telecommunications system is provided for the recognizing of spoken commands over a cellular telephone (15), satellite telephone (14), or personal communications network (16). In the cellular application, for example, a Speech Recognition System (20) interconnects either internally with or as an external peripheral to a cellular telecommunications switch (12). The Speech Recognition System (20) includes an administrative subsystem (21), a call processing subsystem (23), a speaker-dependent recognition subsystem (25), a speaker-independent recognition subsystem (27), and a data storage subsystem (29). Pre-recorded instructional messages are stored in the memory of the call processing subsystem (23) for instructing a user on his or her progress in using the system. The speaker-independent recognition subsystem (27) allows the user to interact with the system employing non-user specific functions. User specific functions are controlled with the speaker-dependent recognition subsystem (25). User specific attributes collected by the recognition subsystems are stored in the data storage subsystem (29).

公开(公告)号：DE69131689D1

公开(公告)日：1999-11-11

申请号：DE69131689

申请日：1991-05-14

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： HUNT ALAN ,  SCHALK THOMAS

IPC: G07C9/00 ,  G10L15/10 ,  G10L15/22 ,  G10L17/00 ,  H04M3/38 ,  G10L5/06 ,  H04M1/64 ,  H04M1/66 ,  G10L3/00

Abstract: A caller is prompted to enunciate (105) an alphanumeric phrase comprising a number of characters. Having reset (104) to zero a cumulative recognition distance register or its equivalent, each character is captured and analyzed (106) and a form of acoustic dissimilarity calculated (108) in relation to a previously stored and corresponding reference character of a reference alphanumeric string. The register is incremented by a quantified difference between the reference character and the captured character and then an assessment (112) is made to determine which of the reference alphanumeric strings has the lowest cumulative recognition distance implying that this was the alphanumeric phrase spoken by the caller. Robust phrase recognition is thus achieved by the exemplified methodology of Figure 6.

公开(公告)号：CA2169447A1

公开(公告)日：1995-02-23

申请号：CA2169447

申请日：1994-08-15

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： SCHALK THOMAS B ,  KAAKE FADI

IPC: G10L15/20 ,  G10L21/02 ,  G10L9/00

Abstract: A method for recognizing a spoken word in the presence of interfering speech beings by echo-cancelling the voice prompt and any detected speech signal to produce a residual signal (60). Portions of the residual signal that have been most recently echo-cancelled are then continuously stored in a buffer (62). The energy in the residual signal is also continuously processed to determine onset of the spoken word (64). Upon detection of word onset, the portion of the residual signal then currently in the buffer is retained, the voice prompt is terminated, and the recognizer begins realtime recognition of subsequent portions of the residual signal (66). Upon detection of word completion (68), the method retrieves the portion of the residual that was retained in the buffer upon detection of word onset (70) and performs recognition of that portion (72).

公开(公告)号：AU649688B2

公开(公告)日：1994-06-02

申请号：AU7995891

申请日：1991-05-14

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： HUNT ALAN K ,  SCHALK THOMAS B

IPC: G07C9/00 ,  G10L15/10 ,  G10L15/22 ,  G10L17/00 ,  H04M3/38 ,  G10L5/06 ,  H04M1/64 ,  H04M1/66

Abstract: A caller is prompted to enunciate (105) an alphanumeric phrase comprising a number of characters. Having reset (104) to zero a cumulative recognition distance register or its equivalent, each character is captured and analyzed (106) and a form of acoustic dissimilarity calculated (108) in relation to a previously stored and corresponding reference character of a reference alphanumeric string. The register is incremented by a quantified difference between the reference character and the captured character and then an assessment (112) is made to determine which of the reference alphanumeric strings has the lowest cumulative recognition distance implying that this was the alphanumeric phrase spoken by the caller. Robust phrase recognition is thus achieved by the exemplified methodology of Figure 6.

公开(公告)号：CA2138774A1

公开(公告)日：1994-01-06

申请号：CA2138774

申请日：1993-06-22

Applicant: VCS IND INC D B A VOICE CONTRO

Inventor： HUNT ALAN K ,  SCHALK THOMAS B

IPC: G07C9/00 ,  G10L17/00 ,  H04M3/38 ,  G10L9/08 ,  H04M1/66

Abstract: The present invention describes a method for recognizing alphanumeric strings spoken over a telephone network (10) wherein individual character recognition need not to be uniformly high in order to achieve high string recognition accuracy. Preferably, the method uses a processing system (14) having a digital processor, an interface (42) to the telephone network (10), and a database (32) for storing a predetermined set of reference alphanumeric strings. In operation, the system (10) prompts the caller to speak the characters of a string, and characters are recognized using a speaker-independent voice recognition algorithm (48). The method calculates recognition distances between each spoken input character and the corresponding letter or digit in the same position within each reference alphanumeric string. After each character is spoken (206), captured and analyzed (208), each reference string distance is incremented (204) and the process is continued, accumulating distances for each reference string, until the last character is spoken. The reference string with the lowest cumulative distance is then declared to be the recognized string (210).