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US5517558A Expired / Lapsed US ⏱️ 0.0 years remaining

Voice-controlled account access over a telephone network

Assignee: Nuance Communications Inc
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Filing: 1993-09-21
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Granted: 1996-05-14
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Expires: 2013-09-21
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Abstract

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.

Inventors

  • 👤 Thomas B. Schalk

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 07:52
CPC Classifications
G; G10; G10L; G10L17/00; G06; G06F; G06F21/00; G06F21/30; G06F21/31; G06F21/32; G06F21/40; G06F21/70; G06F21/82; G06F21/83; G07; G07C; G07C9/00; G07C9/30; G07C9/32; G07C9/33; G07C9/37; G10L17/22; G10L17/24; H; H04; H04M; H04M3/00; H04M3/38; H04M3/382; G06F2221/00; G06F2221/21; G06F2221/2105; G06F2221/2113; G06F2221/2117; H04M2201/00; H04M2201/40

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 216 words
A method for enabling a caller to obtain access to one or more services via a telephone network by speaking first and second character strings each having a plurality of characters, comprising the steps of: (a) prompting the caller to speak the first character string beginning with a first character and ending with a last character thereof; (b) generating speech feature data for each spoken character of the first character string; (c) applying the speech feature data and voice recognition feature transformation data to a voice recognition feature transformation to generate a first set of parameters for each spoken character of the first character string, the first set of parameters for use in a voice recognition system; (d) applying the speech feature data and voice verification feature transformation data to a voice verification feature transformation to generate a second set of parameters for each spoken character of the first character string, the second set of parameters for use in a voice verification system; (e) recognizing the first character string using the first set of parameters; (f) initially verifying the caller's identify using the second set of parameters generated for the first character string; and (g) repeating steps (a)-(c) and (e) using the second character string instead of the first character string to confirm the caller's identity.
Claim 2
Independent Claim 216 words
A method for enabling a caller to obtain access to one or more services via a telephone network by speaking first and second character strings each having a plurality of characters, comprising the steps of: (a) prompting the caller to speak the first character string beginning with a first character and ending with a last character thereof; (b) generating speech feature data for each spoken character of the first character string; (c) applying the speech feature data and voice recognition feature transformation data to a voice recognition feature transformation to generate a first set of parameters for each spoken character of the first character string, the first set of parameters for use in a voice recognition system; (d) applying the speech feature data and voice verification feature transformation data to a voice verification feature transformation to generate a second set of parameters for each spoken character of the first character string, the second set of parameters for use in a voice verification system; (e) recognizing the first character string using the first set of parameters; (f) initially verifying the caller's identify using the second set of parameters generated for the first character string; and (g) repeating steps (a)-(c) and (e) using the second character string instead of the first character string to confirm the caller's identity.
Claim 3
Dependent Claim 22 words
The method as described in claim 1 wherein the second character string confirms the caller's identity only during a predetermined time period.
Claim 4
Independent Claim 313 words
A method for enabling a caller to obtain access to one or more services via a telephone network by speaking first and second character strings each having one or more characters, comprising the steps of: (a) prompting the caller to speak the first character string beginning with a first character and ending with a last character thereof; (b) generating speech feature data for each spoken character of the first character string; (c) applying the speech feature data of the first character string and voice recognition feature transformation data to a voice recognition feature transformation to generate a first set of parameters for each spoken character of the first character string, the first set of parameters for use in a voice recognition system; (d) applying the speech feature data and voice verification feature transformation data to a voice verification feature transformation to generate a second set of parameters for each spoken character of the first character string, the second set of parameters for use in a voice verification system; (e) recognizing the first character string using the first set of parameters of the first character string; (f) initially verifying the caller's identify using the second set of parameters generated for the first character string; (g) prompting the caller to enter the second character string beginning with a first character and ending with a last character thereof; (h) generating speech feature data for each spoken character of the second character string; (i) applying the speech feature data of the second character string and voice recognition feature transformation data to a voice recognition feature transformation to generate a first set of parameters for each spoken character of the second character string, the first set of parameters of the second character string for use in a voice recognition system; and (j) recognizing the second character string using the first set of parameters of the second character string.
Claim 5
Independent Claim 313 words
A method for enabling a caller to obtain access to one or more services via a telephone network by speaking first and second character strings each having one or more characters, comprising the steps of: (a) prompting the caller to speak the first character string beginning with a first character and ending with a last character thereof; (b) generating speech feature data for each spoken character of the first character string; (c) applying the speech feature data of the first character string and voice recognition feature transformation data to a voice recognition feature transformation to generate a first set of parameters for each spoken character of the first character string, the first set of parameters for use in a voice recognition system; (d) applying the speech feature data and voice verification feature transformation data to a voice verification feature transformation to generate a second set of parameters for each spoken character of the first character string, the second set of parameters for use in a voice verification system; (e) recognizing the first character string using the first set of parameters of the first character string; (f) initially verifying the caller's identify using the second set of parameters generated for the first character string; (g) prompting the caller to enter the second character string beginning with a first character and ending with a last character thereof; (h) generating speech feature data for each spoken character of the second character string; (i) applying the speech feature data of the second character string and voice recognition feature transformation data to a voice recognition feature transformation to generate a first set of parameters for each spoken character of the second character string, the first set of parameters of the second character string for use in a voice recognition system; and (j) recognizing the second character string using the first set of parameters of the second character string.
Claim 6
Dependent Claim 28 words
The method of claim 3 further including the step of determining if the recognized second character string is a password associated with the caller verified in step (f).
Claim 7
Dependent Claim 25 words
The method as described in claim 3 further including the step of periodically changing the second character string for confirming the identity of the caller.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-05-14 1999-11-13 2000-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-05-14 2003-11-13 2004-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-05-14 2007-11-13 2008-05-14 $7700.00 Window Closed / Lapsed

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