Hands-free, voice-operated remote control transmitter

  • US 6,397,186 B1
  • Filed: 12/22/1999
  • Issued: 05/28/2002
  • Est. Priority Date: 12/22/1999
  • Status: Expired due to Term
First Claim
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1. An audio signal activated control system for controlling appliances comprising:

  • a microphone for receiving audio signals and converting said audio signals to electrical signals;

    a speech recognition system for receiving said electrical signals, said speech recognition system including a processor and having a low power sound activation mode for detecting the presence of said electrical signals and a speech recognition mode for converting said electrical signals to electrical representative signals, decoding said electrical representative signals and generating control signals for controlling one or more appliances, wherein in said speech recognition mode said processor decodes said electrical representative signals and wherein in said sound activation mode said processor is in a low power state, said speech recognition system configured to automatically switch from said sound activation mode to said speech recognition mode as a function of the amplitude of said electrical signals; and

    an appliance control circuit which includes a transmitter, said appliance control circuit configured to receive said control signals from said speech recognition system and generate and automatically transmit one or more appliance control signals to said one or more appliances.

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