VIDEO SIGNAL RECORDING OR REPRODUCING SYSTEM

• Main Author: HIRASAWA KATAHIDE
• Format: Patent
• Language: English
• Published: 23.10.1987
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PICTORIAL COMMUNICATION, e.g. TELEVISION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS

PURPOSE:To reduce the number of parts and to simplify and a circuit by using a reference signal to be used for the chrominance signal processing of a reproducing device in common for the chrominance signal processing of other device. CONSTITUTION:In a camera part A, a frequency divider 2 divides the frequency of an output signal of a reference signal oscillator 1 and outputs a horizontally synchronizing signal frequency and a frequency divider 3 outputs a color subcarrier. A video signal obtained form a camera 4 is processed by a matrix circuit 5 inputting said subcarrier and supplied to an ACC circuit 6. On the other hand, a color subcarrier from the frequency divider 3 is supplied to a balanced modulator 11 so as to be used as a carrier for modulating the fre quency signal fe of a chroma signal obtained after low frequency conversion. At the time of line input, the output signal of the reference oscillator 1 is sup plied to an APC circuit and the oscillator 1 is used as a VCO. Consequently, the circuit constitution is simplified and the number of parts ca be reduced.