Video signal processing

Details Video signal processing Video signal processing

2008-09-16

2008-09-16

Hsia, Sherrie (Department: 2622)

Television

Image signal processing circuitry specific to television

A/d converters

C348S537000

Reexamination Certificate

active

10516068

ABSTRACT:
A method of generating an orthogonally sampled video signal based on a line phase measure. In a first aspect the input signal is sampled by a clock locked to the average line frequency of a video input and the resulting samples are time shifted, optionally with or without interpolation, to an orthogonal sampling grid. In a second aspect input samples are taken and shifted to an orthogonal sampling grid according to a line phase measure. The line phase measure can be derived from a number of measurements or interpolated. In one embodiment a delay is employed so that a measure of a later sample is used to shift an earlier sample.

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International Search Report for Application No. PCT/GB 03/02348.

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