Patent Number: 6,167,187

Title: Speed controlling circuit of dubbing recorder and dubbing equipment using the speed controlling circuit

Abstract: A speed control circuit for a dubbing recorder includes a demodulation circuit which receives a video signal for dubbing from a master VTR, a sync separation circuit to separate a sync signal from the output signal of the demodulation circuit, a detection circuit to detect the frequency of a portion of the video signal using the sync signal, and a system control circuit to determine the speed mode of the master VTR based on the output signal of the detection circuit.

Inventors: Kazuma; Shuji (Yawata, JP), Masuda; Kenji (Sanda, JP)

Assignee: Matsushita Electric Industrial Co., Ltd.

International Classification: G11B 15/00 (20060101); G11B 15/18 (20060101); G11B 15/087 (20060101); G11B 15/467 (20060101); G11B 5/008 (20060101); G11B 5/86 (20060101); H04N 005/76 (); H04N 005/783 ()

Expiration Date: 12/26/2017