TH17424EX - Establishing a horizontal line counter uniformity in the image receiver. - Google Patents

Abstract

In the system for the specified horizontal line display of the included image in the video signal, the horizontal line counter is reset to show the start of the vertical range by a new vertical signal obtained from the vertical sync signal. set The line counter is clocked by a signal with a horizontal sync rate derived from the harmonic of the horizontal sync signal. The relative phase shift between the reset and the clock signal for the horizontal line counter is measured. The measured phase shift is applied as a result to the differential phase slider to adjust the phase between the horizontal line counting control signal and the start sync signal. This phase adjustment will result in a reduction of the horizontal line counter's sensitivity to vertical sync gaps.

Claims (1)

1. A device for generating a video signal with a vertical and horizontal display range, with each vertical range composed of a horizontal range group. The device consists of A path for generating the first signal showing the beginning of each vertical segment. And a second signal showing the occurrence of the horizontal display interval. The first-order delay shows the first-order delay compared to the second-sequence signal for the first-priority delay, with the delay with a modifier determined by the control signal to produce the displayed delay.