Variable length decoder with enhanced routing of data to multipl

Details Variable length decoder with enhanced routing of data to multipl Variable length decoder with enhanced routing of data to multipl

1998-11-06

2000-10-17

JeanPierre, Peguy

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

341 65, H03M 740

Patent

active

061338605

ABSTRACT:
The present invention relates to a variable length decoder having a reduced size of a chip achieved by decreasing the size of the output data and simultaneously enabling effective input/output data processing. The present invention includes: a control signal generator for generating a data access control signal, a multiplexing control signal and a shift control signal wherein the control signal generator is supplied with the word length of data to be outputted; a first data storage device wherein a shift of a previously-stored data is executed when the data access control signal is activated and new data is inputted into a space vacated by the shift; a multiplexing device for outputting selectively a portion of data stored in the first data storage device according to the multiplexing control signal; and a shifter for varying a shift pointer according to a value of the shift control and for operating upon data from the multiplexing device.

REFERENCES:
patent: 5561690 (1996-10-01), Park
patent: 5625356 (1997-04-01), Lee et al.
patent: 5648775 (1997-07-01), Kim
patent: 5650781 (1997-07-01), Park
patent: 5677690 (1997-10-01), Sohn
patent: 5781135 (1998-07-01), Kim
Shih-Fu Chang et al., IEEE Transactions on Circuits and Systems for Video Technology, vol. 2, No. 2, pp. 187-196, Jun. 1992.

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