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EP0872827A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

System and method for providing remote automatic speech recognition services via a packet network

Assignee: AT&T Inc
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Filing: 1998-04-08
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Granted: —
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Expires: 2018-04-08
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Abstract

Abstract A system and method of operating an automatic speech recognition service using a client-server architecture is used to make ASR services accessible at a client location remote from the location of the main ASR engine. The present invention utilizes client-server communications over a packet network, such as the Internet, where the ASR server receives a grammar from the client, receives information representing speech from the client, performs speech recognition, and returns information based upon the recognized speech to the client.

Inventors

  • 👤 Pamela Leigh Dragosh
  • 👤 David Bjorn Roe
  • 👤 Robert Douglas Sharp

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 10:33
CPC Classifications
G; G10; G10L; G10L15/00; G10L15/28; G10L15/30; H; H04; H04M; H04M3/00; H04M3/42; H04M3/487; H04M3/493; H04M3/4936; H04M7/00; H04M7/006; Y; Y10; Y10S; Y10S707/00; Y10S707/99941; Y10S707/99944; Y10S707/99945; Y10S707/99948

Claims Analysis

Total Claims: 28
Claim 1
Independent Claim 85 words
A method of operating an automatic speech recognition service accessible by a client over a packet network, comprising the steps of: a. receiving from the client over the packet network information corresponding to a grammar used for speech recognition; b. receiving from the client over the packet network information representing speech; c. recognizing the received speech information by applying an automatic speech recognition algorithm in accordance with the grammar; and d. sending information based upon the recognized speech over the packet network to the client.
Claim 2
Dependent Claim 41 words
The invention according to claims 1 or 28, further comprising the step of if the information corresponding to a grammar is an address corresponding to the location of a grammar, obtaining access to a grammar located at the corresponding grammar address.
Claim 3
Dependent Claim 25 words
The invention according to claims 2, 13 or 21, wherein the address corresponding to the location of a grammar is a uniform resource locator-compatible address.
Claim 4
Dependent Claim 69 words
The invention according to claims 1, 12, 20 or 28, wherein the information representing speech arrives from the client in a streaming manner; or wherein the information representing speech received from the client comprises digitized speech; or wherein the information representing speech received from the client comprises compressed digitized speech; or wherein the information representing speech received from the client comprises features extracted by the client from digitized speech.
Claim 5
Dependent Claim 26 words
The invention according to claim 1, wherein the step of recognizing the received speech information is repeated as new speech information is received from the client.
Claim 6
Dependent Claim 34 words
The invention according to claims 1, 9, 12, 17, 20, 25 wherein the information based upon the recognized speech comprises text information; or wherein the information based upon the recognized speech comprises additional speech.
Claim 7
Dependent Claim 25 words
The invention according to claim 1, wherein the step of sending information based upon the recognized speech is repeated as additional speech information is recognized.
Claim 8
Dependent Claim 26 words
The invention according to claim 7, further comprising the step of sending to the client revised information based upon recognized speech previously sent to the client.
Claim 9
Dependent Claim 26 words
The invention according to claim 1, wherein the steps of b, c and d are repeated to create an exchange of information between client and server.
Claim 10
Dependent Claim 30 words
The invention according to claims 1 or 28, further comprising the step of activating a grammar rule in response to a request received from the client over the packet network.
Claim 11
Dependent Claim 27 words
The invention according to claims 1 or 28, further comprising the step of sending over the packet network to the client a handle corresponding to the grammar.
Claim 12
Independent Claim 120 words
A system for operating an automatic speech recognition service accessible by a client over a packet network, comprising: a. a programmable processor; b. memory; c. an audio input device; and d. a communications interface for establishing a communications link with the client over the packet network; wherein said processor is programmed to execute the steps of: i. receiving from the client over the packet network information corresponding to a grammar used for speech recognition; ii. receiving from the client over the packet network information representing speech; iii. recognizing the received speech information by applying an automatic speech recognition algorithm in accordance with the grammar; and iv. sending information based upon the recognized speech over the packet network to the client.
Claim 13
Dependent Claim 45 words
The invention according to claim 12, wherein the processor is further programmed to execute the step of if the information corresponding to a grammar is an address corresponding to the location of a grammar, obtaining access to a grammar located at the corresponding grammar address.
Claim 14
Dependent Claim 31 words
The invention according to claim 12, wherein the processor is further programmed to repeat the step of recognizing the received speech information as new speech information is received from the client.
Claim 15
Dependent Claim 30 words
The invention according to claim 12, wherein the processor is further programmed to repeat the step of sending information based upon the recognized speech as additional speech information is recognized.
Claim 16
Dependent Claim 32 words
The invention according to claim 15, wherein the processor is further programmed to execute the step of sending to the client revised information based upon recognized speech previously sent to the client.
Claim 17
Dependent Claim 31 words
The invention according to claim 12, wherein the processor is further programmed to repeat the steps of b, c and d to create an exchange of information between client and server.
Claim 18
Dependent Claim 34 words
The invention according to claim 12, wherein the processor is further programmed to execute the step of activating a grammar rule in response to a request received from the client over the packet network.
Claim 19
Dependent Claim 31 words
The invention according to claim 12, wherein the processor is further programmed to execute the step of sending over the packet network to the client a handle corresponding to the grammar.
Claim 20
Dependent Claim 109 words
An article of manufacture, comprising a computer-readable medium having stored thereon instructions for operating an automatic speech recognition service accessible by a client over a packet network, said instructions which, when performed by a processor, cause the processor to execute a series of steps comprising: a. receiving from the client over the packet network information corresponding to a grammar used for speech recognition; b. receiving from the client over the packet network information representing speech; c. recognizing the received speech information by applying an automatic speech recognition algorithm in accordance with the grammar; and d. sending information based upon the recognized speech over the packet network to the client.
Claim 21
Dependent Claim 51 words
The invention according to claim 20, wherein the instructions, when performed by a processor, further cause the processor to execute the step of if the information corresponding to a grammar is an address corresponding to the location of a grammar, obtaining access to a grammar located at the corresponding grammar address.
Claim 22
Dependent Claim 37 words
The invention according to claim 20, wherein the instructions, when performed by a processor, further cause the processor to repeat the step of recognizing the received speech information as new speech information is received from the client.
Claim 23
Dependent Claim 36 words
The invention according to claim 20, wherein the instructions, when performed by a processor, further cause the processor to repeat the step of sending information based upon the recognized speech as additional speech information is recognized.
Claim 24
Dependent Claim 38 words
The invention according to claim 23, wherein the instructions, when performed by a processor, further cause the processor to execute the step of sending to the client revised information based upon recognized speech previously sent to the client.
Claim 25
Dependent Claim 37 words
The invention according to claim 20, wherein the instructions, when performed by a processor, further cause the processor to repeat the steps of b, c and d to create an exchange of information between client and server.
Claim 26
Dependent Claim 40 words
The invention according to claim 20, wherein the instructions, when performed by a processor, further cause the processor to execute the step of activating a grammar rule in response to a request received from the client over the packet network.
Claim 27
Dependent Claim 37 words
The invention according to claim 20, wherein the instructions, when performed by a processor, further cause the processor to execute the step of sending over the packet network to the client a handle corresponding to the grammar.
Claim 28
Independent Claim 106 words
A method of operating an automatic form filling service accessible by a client over a packet network, comprising the steps of: a. receiving from the client over the packet network information corresponding to a grammar used for speech recognition, wherein said grammar corresponds to words associated with text information to be inserted in the form; b. receiving from the client over the packet network information representing speech; c. recognizing the received speech information by applying an automatic speech recognition algorithm in accordance with the grammar; and d. sending text corresponding to the recognized speech over the packet network to the client for insertion in the form.

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