Video variable length code encoder with EOB insertion responsive

Details Video variable length code encoder with EOB insertion responsive Video variable length code encoder with EOB insertion responsive

1995-08-02

1997-08-05

Williams, Howard L.

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

348420, H03M 742

Patent

active

056547048

ABSTRACT:
MPEG encoded video requires the data to be variable length coded. To perform the variable length coding, most MPEG encoders use a ROM array. To reduce the cost of implementing a variable length coding unit a method of reducing the number of Read Only Memory (ROM) units required to implement the encoder is introduced. Specifically, a variable length encoder that outputs smaller incomplete variable length codes in a few rare instances. Since smaller variable length codes are output, the number of Read Only Memory (ROM) units in the Read Only Memory array can be reduced. The smaller incomplete variable length codes are later made complete using length information.

REFERENCES:
patent: 5148271 (1992-09-01), Kato et al.
patent: 5404168 (1995-04-01), Yamada et al.
patent: 5530478 (1996-06-01), Sasaki et al.

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