Title :
A single-chip adaptive DPCM video codec
Author :
Schöbinger, Matthias ; Zehner, Bernd ; Matthiesen, Fred ; Totzek, Ulrich ; Härtl, Jutta ; Reimann, Udo
Author_Institution :
Siemens AG, Munich, West Germany
fDate :
8/1/1989 12:00:00 AM
Abstract :
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 μm 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
Keywords :
CMOS integrated circuits; VLSI; codecs; pulse-code modulation; 1.5 micron; CMOS technology; VLSI realization; adaptive quantizer; chrominance signals; line buffer; luminance signals; quantizer characteristics; single-chip adaptive DPCM video codec; test chip; three-dimensional interframe codec; two-dimensional intrafield prediction; CMOS technology; Circuits; Modulation coding; Pulse modulation; Quantization; Signal processing; Testing; Transmitters; Very large scale integration; Video codecs;
Journal_Title :
Solid-State Circuits, IEEE Journal of
