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Digital video recorder connectable to an auxiliary interface of a set-top box that provides video data stream to a display device based on selection between recorded video signal received from the dig

  • US 6,442,328 B1
  • Filed: 05/31/2000
  • Issued: 08/27/2002
  • Est. Priority Date: 05/31/2000
  • Status: Expired due to Term
First Claim
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1. A digital video recorder connectable to a set-top box that includes a video input interface that receives a broadcast signal, a video output interface comprising a transport demultiplexer/decoder, an on-screen display module that comprises a display multiplexer, and an encoder, the video output interface providing an output video data stream to a display device, at least one auxiliary interface that supports connection of the digital video recorder to the set-top box, a microprocessor that generates a command in response to user input that initiates a playback interval, and a multiplexer coupled to the video output interface and the microprocessor, the set-top box being configured to (a) use the video input interface to generate a real-time video signal, (b) recognize connection of the digital video recorder to the set-top box and subsequently continuously provide the real-time video signal to the digital video recorder, and (c) receive a recorded video signal from the digital video recorder during the playback interval, the digital video recorder comprising:

  • at least one recorder interface for connecting the digital video recorder to the at least one auxiliary interface of the set-top box, the at least one recorder interface continuously receiving the real-time video signal from the set-top box and providing the recorded video signal to the set-top box during the playback interval;

    a disk; and

    a video data stream manager that, in response to the real-time video signal, provides a first video stream to store a selected video segment on the disk, and that, in response to the command from the microprocessor, receives a second video stream based on the selected video segment stored on the disk to generate the recorded video signal, wherein the multiplexer of the set-top box selects the real-time video signal during a real-time interval and selects the recorded video signal during the playback interval to generate the output video data stream that is provided to the display device.

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