Multi-station voice recognition and processing system

• US 5,036,538 A
• Filed: 11/22/1989
• Issued: 07/30/1991
• Est. Priority Date: 11/22/1989
• Status: Expired due to Fees

• Current Assignee: Telephonics Corporation (TTM Technologies Incorporated)
• Original Assignee: Telephonics Corporation (TTM Technologies Incorporated)
• Inventors: Lee, Eugene, Vemula, Rao, Oken, Stanley
• Primary Examiner(s): Harkcom, Gary V.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/440,518
• Time in Patent Office: 615 Days
• Field of Search: 381/41-46, 381/110, 381/51-53, 364/513.5
• US Class Current: 704/233
• CPC Class Codes: G10L 15/32 Multiple recognisers used in sequence or in parallel; Score combination systems therefor, e.g. voting systems
• CPC Class Codes: H04M 1/271 controlled by voice recognition
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• CPC Class Codes: H04M 1/737 Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves

Abstract

An electronic voice recognition system utilizes a microphone having noise-cancelling characteristics and a standardizer network to achieve further noise reduction and signal standardization over a range of input levels. The output of the standardizer is coupled to voice processor circuitry which provides a computer-compatable output corresponding to the voice information received. The system may be embodied in a multi-station environment in which the voice reception stations are coupled to a remote central processing location. A variety of processing techniques, including analog and digital, parallel and sequential, may be utilized to pass the voice signals to the processors. Upon successful processing, a confirmation signal is passed to the appropriate voice-originating station.

Claims

1. An electronic voice recognition system comprising a plurality of input stations coupled to a remotely positioned central processor, each of said input stations including microphone input means for generating an electrical signal corresponding to an audio input comprising voice and non-voice components, said microphone input means having means for attenuating said non-voice components such that said electrical signal is primarily voice-representative;

processor means coupled to said input means for generating a digital computer-compatible output signal representing said voice component, said processor comprising a template whereby said electrical signal is compared to stored data to generate a pre-determined output signal upon correspondence therebetween;

wireless transmission means for transmitting said digital output signal to a central facility;

data processing means at said central facility for the reception and storage of said output signal for the implementation of computer routines upon receipt of said output signal; and

confirmation-generating means operatively coupled to said data processing means for generating a confirmation signal upon successful receipt of a transmission by said data processing means from one of said stations, said confirmation generating means including second wireless transmission means for directing said confirmation signal only to the one of said input stations from which said recognized signal emanated.

2. The system of claim 1, wherein each of said input stations is assigned a unique transmission time interval in an overall transmission interval such that the receipt of an output signal by said data processing means may be associated with the input station from whence it was transmitted.

3. The system of claim 2, wherein said wireless transmission means is voice actuated.

4. The system of claim 2, wherein said microphone input means includes a pressure-to-electrical-transducer coupled to an electronic filter.

5. The system of claim 1, wherein each of said second wireless transmitter means is a scanning transmitter having a sequential output upon a plurality of frequencies, each of which frequencies being associated with a separate of said input stations, said confirmation signal being transmitted upon the frequency associated with the one of said input stations from whence the corresponding digital output signal emanated.