Coded data generation or conversion – Digital code to digital code converters – Substituting specified bit combinations for other prescribed...
Reexamination Certificate
2006-12-19
2010-06-01
Nguyen, Khai M (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
Substituting specified bit combinations for other prescribed...
C341S094000, C704S226000, C704S228000
Reexamination Certificate
active
07728741
ABSTRACT:
Provided is a code conversion device that is capable of converting codes even if an input code sequence is invalid, and is able to reduce the amount of processing. When a first code sequence is input, the code conversion device generates a decoded signal by decoding the codes of normal frames of the first code sequence at Step S1, stores and holds the decoded signal at Step S2, generates a signal corresponding to an invalid frame by interpolation with the decoded signal that is stored and held, at Step S3. Subsequently, the code conversion device generates codes corresponding to the invalid frame by encoding the generated signal at Step S4, and makes the normal frames of the first code sequence without conversion be the frames of the second code sequence while making the generated codes be the frame of the second code sequence, in place of the codes of the invalid frame, at Step S5.
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NEC Corporation
Nguyen Khai M
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