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Continuous recording apparatus for surveillance

  • US 6,556,769 B1
  • Filed: 06/02/1998
  • Issued: 04/29/2003
  • Est. Priority Date: 06/02/1998
  • Status: Expired due to Fees
First Claim
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1. A recording apparatus for continuous digital recording of input information, comprising:

  • a converter for converting and compressing an analog input signal into digital data;

    a first recording means for recording digital data on a tape medium;

    said first recording means automatically rewinding the tape medium to a start thereof if digital data of a video program is recorded as far as an end of the tape medium and restarting recording of said video program;

    a second recording means for temporarily recording digital data in a random access memory;

    a control means for controlling the first recording means so that digital data is recorded directly from said converter onto the tape medium when the tape medium is ready for recording, controlling the second recording means so that digital data is temporarily recorded directly from said converter into the random access memory when the tape medium is not ready for recording, and controlling the first and second recording means so that information recorded in the random access memory is transferred to the tape medium to be recorded thereon when the tape medium shifts from a state of not ready for recording to a state of ready for recording;

    the control means directing the digital data of said video program to be temporarily recorded in the random access memory while the first recording means is automatically rewinding the tape medium; and

    a bus for transferring digital data between said converter, said first recording means, and said second recording means in response to commands from said control means.

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