Title :
A self-timed ICT chip for image coding
Author :
Pang, Tin-Chak Johnson ; Choy, Chiu-Sing Oliver ; Chan, Cheong-Fat ; Cham, Wai-Kuen
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
fDate :
9/1/1999 12:00:00 AM
Abstract :
This paper describes an asynchronous one-dimensional order-8 integer cosine transform chip, which can calculate either the forward or inverse transforms. The chip´s performance is maximized with a fast computation algorithm and the self-timed circuit technique. The basic self-timed block is a microcoded programmable processor. Eight of these processors are used and achieve a data rate of up to 50 MHz in 0.7-μm CMOS technology. If the delay in the handshake circuit can be minimized, the design suggests that asynchronous techniques are a feasible alternative to synchronous designs
Keywords :
CMOS logic circuits; VLSI; digital arithmetic; digital signal processing chips; image coding; inverse problems; timing circuits; transform coding; transforms; 0.7 micron; 50 MHz; CMOS technology; VLSI; asynchronous 1D integer cosine transform chip; data rate; fast computation algorithm; forward transform; handshake circuit; image coding; inverse transform; microcoded programmable processor; order-8 integer cosine transform; performance; self-timed ICT chip; self-timed circuit; self-timed logic; transform coding; CMOS technology; Circuits; Clocks; Delay; Discrete cosine transforms; Discrete transforms; Image coding; Kernel; Large scale integration; Logic design;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
