US6424945B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voice packet data network browsing for mobile terminals system and method using a dual-mode wireless connection
Assignee: Nokia Technologies Oy
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Filing: 1999-12-15
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Granted: 2002-07-23
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Expires: 2019-12-15
Abstract
Abstract A system and method for voice browsing IVR services using a mobile terminal. A voice application is accessible via a server connected to a network. A call connection is established between the mobile terminal and the server using a dual-mode connection. The call connection includes a voice mode and a data mode for alternately transmitting voice and data via the network. The voice application sends a state-dependent grammar that defines the speech recognition results that the voice application is ready to accept as input or commands at its present state of execution. The voice application also sends to the mobile terminal state-dependent voice output such as audio prompts and instructions using the voice mode. The user responds orally to the voice output. The mobile terminal processes this voice input using speech recognition facilities. Valid input is extracted from the voice input based on the state-dependent grammar. The mobile terminal sends the valid input to the voice application using the data mode. The voice application updates its state of execution based on the valid input.
Inventors
- 👤 Mika T. Sorsa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:53
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/487; H04M3/493; H04M1/00; H04M1/72; H04M1/724; H04M1/72403; H04M1/72445; H04M7/00; H04M7/0024; H04M7/0036; G; G10; G10L; G10L15/00; G10L15/22; G10L2015/226; G10L2015/228; H04M2201/00; H04M2201/40; H04M2207/00; H04M2207/18; H04M2250/00; H04M2250/74
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
An interactive voice response (IVR) system, comprising: a network; a server coupled to said network; a voice application accessible via said server; and a mobile terminal, wherein a call connection having a data mode and a voice mode is established between said mobile terminal and said server, including: a transceiver for establishing a wireless link between said mobile terminal and said network, wherein said transceiver is coupled to receive from said voice application a state-dependent grammar using said data mode and state-dependent voice output using said voice mode, an audio input/output (I/O) which outputs said voice output to a user and receives voice input from said user, and a speech processor for extracting valid input from said voice input based on said grammar, wherein said transceiver sends said valid input to said voice application via said data mode.
Claim 2
Dependent Claim
138 words
An interactive voice response (IVR) system, comprising: a network; a server coupled to said network; a voice application accessible via said server; and a mobile terminal, wherein a call connection having a data mode and a voice mode is established between said mobile terminal and said server, including: a transceiver for establishing a wireless link between said mobile terminal and said network, wherein said transceiver is coupled to receive from said voice application a state-dependent grammar using said data mode and state-dependent voice output using said voice mode, an audio input/output (I/O) which outputs said voice output to a user and receives voice input from said user, and a speech processor for extracting valid input from said voice input based on said grammar, wherein said transceiver sends said valid input to said voice application via said data mode.
Claim 3
Dependent Claim
18 words
The system of claim 1 , wherein said network is a Global System for Mobile (GSM) communications network.
Claim 4
Dependent Claim
45 words
The system of claim 1 , wherein said network is a combined GSM and General Packet Radio Service (GPRS) network, and wherein said data mode is established as a data connection within GPRS and said voice mode is established as a voice call within GSM.
Claim 5
Dependent Claim
16 words
The system of claim 1 , wherein said mobile terminal comprises a GSM-enabled digital cellular telephone.
Claim 6
Dependent Claim
17 words
The system of claim 1 , wherein said speech processor stores speaker-dependent characteristics corresponding to said user.
Claim 7
Dependent Claim
47 words
The system of claim 1 , wherein voice application generates speech content corresponding to the current state of said voice application, and wherein said system further comprises a speech synthesizer coupled to receive said speech content which generates said state-dependent voice output based on said speech content.
Claim 8
Dependent Claim
23 words
The system of claim 1 , wherein said speech processor applies a Hidden Markov Model speech recognition algorithm for extracting said valid input.
Claim 9
Dependent Claim
22 words
The system of claim 1 , wherein said speech processor applies a clustering method speech recognition algorithm for extracting said valid input.
Claim 10
Dependent Claim
17 words
The system of claim 1 , wherein said audio I/O comprises an audio speaker and a microphone.
Claim 11
Independent Claim
148 words
A method for allowing a user to interact with a voice application using a mobile terminal, wherein the voice application is accessible via a server coupled to a network, and wherein the mobile terminal communicates with the network via a wireless link, comprising the steps of: (a) opening a call connection between the mobile terminal and the server, wherein said call connection includes a voice mode and a data mode; (b) downloading at the mobile terminal a state-dependent grammar and state-dependent voice output, wherein said grammar is sent using said data mode and said voice output is sent using said voice mode; (c) outputting said voice output to the user; (d) receiving voice input from the user; (e) applying said grammar to said voice input, thereby extracting valid input; (f) uploading said valid input at the server; and (g) determining a new state based on said valid input.
Claim 12
Independent Claim
148 words
A method for allowing a user to interact with a voice application using a mobile terminal, wherein the voice application is accessible via a server coupled to a network, and wherein the mobile terminal communicates with the network via a wireless link, comprising the steps of: (a) opening a call connection between the mobile terminal and the server, wherein said call connection includes a voice mode and a data mode; (b) downloading at the mobile terminal a state-dependent grammar and state-dependent voice output, wherein said grammar is sent using said data mode and said voice output is sent using said voice mode; (c) outputting said voice output to the user; (d) receiving voice input from the user; (e) applying said grammar to said voice input, thereby extracting valid input; (f) uploading said valid input at the server; and (g) determining a new state based on said valid input.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2005-07-22 | 2006-01-21 | 2006-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-07-22 | 2010-01-21 | 2010-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-07-22 | 2014-01-21 | 2014-07-23 | $7700.00 | Window Closed / Lapsed |