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Communications apparatus for use with cable television systems

  • US 4,575,750 A
  • Filed: 05/31/1984
  • Issued: 03/11/1986
  • Est. Priority Date: 05/31/1984
  • Status: Expired due to Term
First Claim
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1. A communications apparatus for use with a cable television system, the apparatus comprising:

  • (a) transmission means for originating a message and transmitting said message through at least a portion of said cable television system, said transmission means including;

    (i) audio signal source means for providing at least one audio signal message to serve as the originated message wherein said audio signal message comprises at least one recorded message;

    (ii) modulator means for receiving said audio signal message and for converting said audio signal message into a radio frequency signal that may be broadcast through said cable television system without interferring with any signals ordinarily broadcast therethrough;

    (iii) recorded message designation means for generating a code signal that designates a particular recorded message that is to be transmitted by said transmission means through said cable television systems; and

    (iv) message signal decode means for receiving said coded signal from said recorded message designation means to at least partially decode said coded signal and for generating an enable signal in response thereto;

    wherein said audio signal source means is responsive to said message signal decode means such that said enable signal from said message signal decode means will cause said audio signal source means to provide a particular recorded message as designated by said recorded message designation means; and

    (b) receiver means for receiving said radio frequency signal and for rendering said audio signal message audible, said receiver means including;

    (i) demodulation means for receiving said radio frequency signal and for converting said radio frequency signal into an audio frequency signal; and

    (ii) transducer means for rendering said audio frequency signal audible without use of any transducer elements that are otherwise ordinarily connected to said cable television system, such as television speakers.

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