Method for encoding an input signal

Details Method for encoding an input signal Method for encoding an input signal

2005-04-12

2005-04-12

Corrielus, Jean B. (Department: 2637)

Pulse or digital communications

Miscellaneous

C380S236000

Reexamination Certificate

active

06879652

ABSTRACT:
An encoder transforms at least a portion of a signal, counts the resulting transform coefficients having a zero value, and encodes the signal with the zero count. A decoder decodes the signal in order to recover the zero count. The decoder may also determine its own zero count of the signal as received and may compare the zero count that it determines to the recovered zero count. The decoder may be arranged to detect compression/decompression based upon results from the comparison, and/or the decoder may be arranged to prevent use of a device based upon results from the comparison.

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