Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2003-09-30
2010-06-22
Czekaj, David (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240260
Reexamination Certificate
active
07742521
ABSTRACT:
The system carries out conversion of digital video signals organized in blocks of pixels from a first format to a second format. The second format is a format compressed via vector quantization. The vector quantization is performed by means of repeated application of a scalar quantizer to the pixels of said blocks with a quantization step (Q) determined in an adaptive way according to the characteristics of sharpness and/or brightness of the pixels.
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Battiato Sebastiano
Buemi Antonio
Della Torre Luigi
Vitali Andrea Lorenzo
Boller Timothy L.
Czekaj David
Jorgenson Lisa K.
Seed IP Law Group PLLC
STMicroelectronics S.r.l.
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