Television – Image signal processing circuitry specific to television
Patent
1992-10-29
1994-12-06
Powell, Mark R.
Television
Image signal processing circuitry specific to television
348714, 358335, 360 101, 369 60, H04N 514
Patent
active
053715519
ABSTRACT:
A broadcast recording and playback device employing a "circular buffer" which constantly records one or more incoming audio or video program signals and a microprocessor for accessing the memory to read a playback signal from the circular buffer to display programming material delayed from its receipt by a selectable delay interval. The circular buffer is implemented by a digital memory. Subsystem comprising the combination of a semiconductor RAM memory and a disk memory operated under the control of a microprocessor such that incoming signals are constantly recorded as received while, at the same time, delayed signals are being read from the memory subsystem at a different memory location selected by a microprocessor to provide a user-selected time delay. A plurality of input signal processors provides one or more programming signals to the memory subsystem in compressed digital form and a separate output signal processor converts the compressed digital information read from the memory into a form suitable for display. The audio/video buffer system operates under the control of a microprocessor which accepts commands from a remote command device or a connected host computer.
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Goessling Daniel
Logan James
Miller John W.
Powell Mark R.
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