Video System Sampling Phase Determination

A phase for an analog-to-digital converter sampling clock is determined. The analog-to-digital converter samples a video signal to generate pixel values. Differences of successive pixel values are compared to a threshold. The number of times the threshold is exceeded is counted for multiple phase va...

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Bibliographische Detailangaben
Hauptverfasser:	GANDHI LAKHBIR SINGH, CHAMPION MARK, SANDGATHE JOEL
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING CRYPTOGRAPHY DECODING DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEALS
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Beschreibung
Zusammenfassung:	A phase for an analog-to-digital converter sampling clock is determined. The analog-to-digital converter samples a video signal to generate pixel values. Differences of successive pixel values are compared to a threshold. The number of times the threshold is exceeded is counted for multiple phase values to create a phase profile. The threshold may be dynamic.