De-emphasis for digitized composite color television signals

De-screening halftones using sigma filters

Decoder for a frame or field skipped TV signal with a representa

Decoder for digital information T.V. signal

Decoder for extracting a 4:3 aspect ratio signal from a high def

Decoder for subsampled video signal

Decoder for subsampled video signal

Decoder lockout defeat circuit

Decoder mode validation apparatus for pay television systems

Decoder-operated television signal switch

Decoding apparatus

Decoding apparatus

Decoding apparatus for image code

Decoding composite PAL television signals

Decoding device capable of forwardly and backwardly reproducing

Decoding device capable of producing a decoded video signal with

Decoding device for two-dimensional codes by using first or seco

Decoding equalizer

Decoding system having parallel-processing capability therein

Decomposition and recombination of a wide-aspect ratio image