DELAY CIRCUIT

A delay circuit for delaying an FM video signal is disclosed. The delay circuit includes an input for supplying the FM video signal, an output for producing a delayed FM video signal, and a delay line connected between the input and output for delaying FM video signal. The delay line is defined by a...

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Bibliographische Detailangaben
Hauptverfasser:	NOBUKAZU HOSOYA, YOSHIHIRO MURAKAMI, TAKESHI HIGASHINO, YOSHIHIRO HARAI
Format:	Patent
Sprache:	eng
Schlagworte:	AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RESONATORS
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Beschreibung
Zusammenfassung:	A delay circuit for delaying an FM video signal is disclosed. The delay circuit includes an input for supplying the FM video signal, an output for producing a delayed FM video signal, and a delay line connected between the input and output for delaying FM video signal. The delay line is defined by a plurality of I2Ls connected in cascade. The delay circuit further includes a phase comparator provided for comparing a phase between FM video signal at the input and the delayed FM video signal at the output and for producing a difference signal representing the phase difference. The difference signal is used for changing and injection current to be applied to the I2Ls such that the delay effected in the delay line is made substantially equal to the required delay.