×

Audio processing chip with external serial port

  • US 5,809,466 A
  • Filed: 11/27/1996
  • Issued: 09/15/1998
  • Est. Priority Date: 11/02/1994
  • Status: Expired due to Fees
First Claim
Patent Images

1. A monolithic audio signal processing circuit, comprising:

  • a coder-decoder module, including;

    a digital to analog decoder circuit, and an analog to digital encoder circuit;

    a synthesizer module for generating digital audio data, including;

    a synthesizer parallel to serial converter circuit;

    an external serial port for providing serial format communication between said signal processing circuit and external devices;

    a serial data transfer control circuit for enabling serial data transfer between said coder-decoder module and said synthesizer module;

    wherein said synthesizer module parallel to serial converter circuit converts synthesizer parallel format data to serial format data in said synthesizer module for transfer to said coder-decoder module under the control of said serial data transfer control circuit; and

    a record FIFO for storing audio data, wherein said serial transfer control circuit includes a data path and control circuitry for transferring audio data to said record FIFO from said synthesizer module via said external serial port.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×