US PATENT SUBCLASS 348 / 548
.~.~.~ Countdown

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


348 /   HD   TELEVISION

500  DF  SYNCHRONIZATION {11}
536  DF  .~ Automatic phase or frequency control {4}
547  DF  .~.~ Vertical sync component {1}
548.~.~.~ Countdown

DEFINITION

Classification: 348/548

Countdown:

(under subclass 547) Subject matter including a resetting divider for controlling the phase or time of the oscillating signal in response to the vertical sync.