发明名称 Video reproducing apparatus with variable delay means
摘要 A reproducing apparatus for television signals recorded on a magnetizable record carrier in the form of a tape comprises a rotatable transducer arrangement which for reading television signals which are recorded in adjacent oblique tracks which extend parallel to each other carries two magnetic heads of mutually different azimuth angles, whose azimuth angles correspond to the azimuth angles of the magnetic heads used during recording. In such an apparatus steps have been taken to ensure that during a mode of operation with stationary record carrier or with a record carrier speed deviating from the normal speed each of the two magnetic heads reads a track in which the television signals have been recorded with a magnetic head having the same azimuth angle as the magnetic head reading it. Furthermore, the signal path for the television signals being reproduced includes a delay device for said signals, which shifts the television signals corresponding to the consecutive fields in such a time relationship to each other that, without a phase jump between the horizontal synchronizing pulse trains of consecutive fields, the differences in the time intervals between every two consecutive vertical synchronizing pulses of each field are zero or a minimum respectively.
申请公布号 US4283744(A) 申请公布日期 1981.08.11
申请号 US19790077957 申请日期 1979.09.24
申请人 U.S. PHILIPS CORPORATION 发明人 MELWISCH, HARALD E.;SUSZ, DIETFRIED
分类号 G11B5/027;H04N5/783;(IPC1-7):H04N5/78 主分类号 G11B5/027
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