JPS61187175U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a block diagram of the main parts of an embodiment of the present invention, Fig. 2 is a plan view showing the head installed in Fig. 1, and Fig. 3 is a signal waveform diagram of each part of the embodiment of Fig. 1. be. 2, 3... First and second demodulators, 4... Phase reference signal generation circuit, 5, 6... First and second PLL circuits, 7, 8... First and second delay circuits.

Claims (1)

[Claims for Utility Model Registration] A first rotating head group consisting of two adjacent heads with different azimuth angles, and a second rotating head group consisting of two adjacent heads with different azimuth angles. In a double azimuth four-head video tape recorder, the first and second heads correspond to the heads having different azimuth angles and demodulate the reproduced signals from the heads.
a demodulator; a phase reference signal generation circuit that generates a phase reference signal by removing time fluctuations in a horizontal synchronization signal from among the reproduction signals from the head; and a phase reference signal generation circuit for generating a phase reference signal from among the reproduction signals from the first and second demodulators first and second PLs that output a delay control signal for phase-locking the horizontal synchronization signal of the phase reference signal to the phase reference signal;
an L circuit, and first and second circuits that respectively delay the reproduced signal based on delay control signals from each of the PLL circuits.
A video tape recorder comprising a delay circuit.