US PATENT SUBCLASS 348 / 558
.~.~ Format detection

Current as of: June, 1999
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553  DF  BASIC RECEIVER WITH ADDITIONAL FUNCTION {4}
554  DF  .~ Multimode (e.g., composite, Y, C; baseband RF) {2}
558.~.~ Format detection

DEFINITION

Classification: 348/558

Format detection:

(under subclass 554) Subject matter including a specific circuitry for detecting the number of lines or the frame rate of the signal.