A single-chip adaptive DPCM video codec

A differential pulse-code modulation (DPCM) video codec with two-dimensional intrafield prediction and adaptive quantizer is presented. An approach for the arithmetic implementation of the DPCM structure and the design of a test chip, fabricated in a 1.5 mu m CMOS technology, is described. This is t...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 1989-08, Vol.24 (4), p.991-996
Main Authors: Schobinger, M., Zehner, B., Matthiesen, F., Totzek, U., Hartl, J., Reimann, U.
Format: Article
Language:English
Subjects:
Circuits
CMOS technology
Modulation coding
Pulse modulation
Quantization
Signal processing
Testing
Transmitters
Very large scale integration
Video codecs
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Summary:A differential pulse-code modulation (DPCM) video codec with two-dimensional intrafield prediction and adaptive quantizer is presented. An approach for the arithmetic implementation of the DPCM structure and the design of a test chip, fabricated in a 1.5 mu m CMOS technology, is described. This is the first VLSI realization of a DPCM codec with adaptive quantizer. For the test chip transmitter or receiver mode, application as part of a three-dimensional interframe codec and processing of luminance or chrominance signals are optional. A line buffer and ten different quantizer characteristics are realized on-chip. Correct operation has been verified up to 26 MHz.< >
ISSN:0018-9200
1558-173X
DOI:10.1109/4.34082