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Speech recognition system with an automatic adaptive learning device

  • US 5,251,283 A
  • Filed: 12/04/1989
  • Issued: 10/05/1993
  • Est. Priority Date: 12/07/1988
  • Status: Expired due to Fees
First Claim
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1. A speech recognition system comprising:

  • a speech-recognition arrangement including means for recognizing speech signals applied to the system and means for applying information signals relating to recognized speech signals to an output of the system, a learning device which interacts with the speech-recognition arrangement during an adaptive learning mode and includes means for adapting the speech-recognition arrangement to the characteristic pronunciation of a given speaker, a keyboard for applying certain words to the speech-recognition arrangement during a learning procedure, a microphone for converting sound signals associated with said certain words and originating from the given speaker to electric speech signals and for applying said speech signals to the speech-recognition arrangement, wherein said speech-recognition arrangement also includes means for determining the progress of the learning procedure in the learning mode, means for displaying details of the learning procedure progress in the learning mode on a display screen, to which the given speaker is to react, characterized in that in normal operation of the system electric speech signals corresponding to a text are fed in to the system via a scannable storage medium in a recording and reproducing device, and wherein electric speech signals which are fed in to the system during the learning procedure of the speech-recognition arrangement are first stored in a storage medium of the recording and reproducing device and subsequent thereto are scanned from the storage medium and fed in to the speech-recognition arrangement, said storage medium having a transmission characteristic that closely approximates the transmission characteristic of said scannable storage medium.

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