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Auto response phone system

  • US 5,031,205 A
  • Filed: 04/23/1990
  • Issued: 07/09/1991
  • Est. Priority Date: 04/23/1990
  • Status: Expired due to Term
First Claim
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1. An auto response phone system comprising:

  • a. a digital switch that routes control and data signals throughout said auto response phone system;

    b. a multiplicity of electrically erasable programmable read only memories to store the contents of messages to be provided by said auto response phone system;

    c. a microphone to capture a user'"'"'s voice message and convert said voice message into an analog signal;

    d. a microphone amplifier to increase the amplitude of said analog signal;

    e. an analog to digital converter to convert said analog signal to a stream of bits which are stored in one of said memories as directed by said digital switch;

    f. a digital to analog converter which converts said stream of bits into an analog signal which closely duplicates the output of said microphone;

    g. a preamp which increases the amplitude of the output of said digital to analog converter;

    h. a speaker and a power amplifier, whereby said speaker is driven by said power amplifier;

    i. a ring detector that outputs a signal to said digital switch whenever a ringing signal is present on a telephone line connected to said auto response phone system;

    j. an electronic ringer switch that disables the ringing signal to said auto response phone system;

    k. a mixer that allows the output signal from said preamp to connect with a telephone line connected to said auto response phone system;

    l. a multiplicity of message switches connected to said digital switch, wherein each of said message switches corresponds to one of said memories, whereby when one of said message switches is depressed said digital switch directs the appropriate memory to output its connected via said digital switch to said digital to analog converter, to said preamp, to said power amplifier, and to said speaker, and also to said mixer, thereby outputting a message onto said telephone line; and

    ,m. a record switch connected to said digital switch whereby when said record switch is activated simultaneously with one of said message switches any voice incumbent upon said microphone is converted to an electrical analog signal which is amplified by said microphone amplifier, converted to a digital signal by said analog to digital converter, and directed to the appropriate memory via said digital switch, wherein said digital signal is stored in non-volatile fashion in said appropriate memory.

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