US PATENT SUBCLASS 348 / 509
.~.~.~ With line rate switch (e.g., PAL)

Current as of: June, 1999
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348 /   HD   TELEVISION

500  DF  SYNCHRONIZATION {11}
505  DF  .~ Phase locking regenerated subcarrier to color burst {2}
507  DF  .~.~ Including demodulator {2}
509.~.~.~ With line rate switch (e.g., PAL)

DEFINITION

Classification: 348/509

With line rate switch (e.g., PAL):

(under subclass 507) Subject matter wherein the sync is used to cause a switch to change state at a horizontal line rate.