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Variable data message communication over voice communication channel

  • US 5,410,739 A
  • Filed: 09/29/1992
  • Issued: 04/25/1995
  • Est. Priority Date: 09/29/1992
  • Status: Expired due to Term
First Claim
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1. A communication system comprising an apparatus for generating and enabling transmission of variable data messages, wherein the apparatus includes:

  • means for connecting a microphone handset having a momentary switch for enabling generation of a voice signal to a transmitting means interface circuit that enables transfer of the voice signal from the microphone handset to a transmitting means;

    processing means;

    means for connecting the processing means to a variable data source that is independent and separate from both the communication system and the microphone handset;

    wherein the processing means process variable data from said variable data source to generate a variable data message;

    circuit means for enabling transmission by said transmitting means of the voice signal over a given communication channel during actuation of the momentary switch when the apparatus is connected between said microphone handset and said transmitting means interface circuit;

    means for detecting deactuation of the momentary switch when the apparatus is connected between said microphone handset and said transmitting means interface circuit; and

    means coupled to the detecting means for causing the variable data message to be provided to the transmitting means for transmission over the given communication channel in response to detection of deactuation of the momentary switch by the detection means when the apparatus connects said microphone handset to said transmitting means interface circuit;

    wherein when the apparatus connects said microphone handset to said transmitting means interface circuit the apparatus is transparent during transmission of voice signals while the momentary switch is being actuated.

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