DSV control apparatus and DSV control method

Details DSV control apparatus and DSV control method DSV control apparatus and DSV control method

2008-01-22

2008-01-22

Barnie, Rexford (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from minimum d.c. level codes

C341S059000

Reexamination Certificate

active

07321320

ABSTRACT:
A digital sum value (DSV) control apparatus inserts a DC control bit for each DC control block. The apparatus includes a first DSV accumulated value comparator for setting a target flag to a DC control bit for a first DC control block, a second DSV accumulated value comparator for comparing a first DSV accumulated value accumulated and calculated from DSV values of the first DC control block with a second DSV accumulated value accumulated and calculated from DSV values of a plurality of DC control blocks subsequent to the first DC control block, and a DC control bit determination output section for determining a value of a DC control bit for the first control block according to an output of the first and the second DSV accumulated value comparators.

REFERENCES:
patent: 7142135 (2006-11-01), Chen et al.
patent: 11-346154 (1999-12-01), None
patent: 2003-179497 (2003-06-01), None

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