US PATENT SUBCLASS 358 / FOR 123
.~ Frequency modulation recording techniques (358/330)

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358 /   HD   FACSIMILE AND STATIC PRESENTATION PROCESSING

FOR 103  DF  NATURAL COLOR RECORDING OR REPRODUCING TELEVISION (358/310) {12}
FOR 123.~ Frequency modulation recording techniques (358/330)

DEFINITION

Classification: 358/FOR.123

Frequency modulation recording techniques: Subject matter under subclass 310 wherein the color television signal is divided into, or has separate components (e.g., luminance and chrominance) which occupy different frequency bands and are separately processed (including specific frequency modulator or demodulator circuitry or techniques) and are then recorded on the same track of a record carrier.