Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1992-04-09
1995-08-29
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Recording apparatus
360 15, H04N 576
Patent
active
054465516
ABSTRACT:
In an apparatus for producing duplicate tapes by transmitting signals reproduced by a master VTR to a plurality of duplicating VTRs for simultaneous recording on respective tapes in the latter; control signals from a bidirectional remote control unit are modulated with a first modulating frequency and are transmitted over a bidirectional control signal line to the duplicating VTRs. If a response is required from one of the duplicating VTRs, response signals from such duplicating VTR are modulated with a second modulating frequency different from the first modulating frequency and, during a pause in signal transmission from the remote control unit, the modulated response signals are transmitted to the remote control unit over the bidirectional control signal line. A test signal is transmitted to the duplicating VTRs in place of the signal reproduced by the master VTR, and defects in the recording operation of the duplicating VTRs are detected from playback of the test signal recorded by the respective duplicating VTRs.
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Journal of Society of Motion Picture & Tel. Eng. vol. 88, No. 12, Dec. 1979, N.Y. USA pp. 831-834 Heinz-Dieter Geise `the use of microcomputers and microprocessors in modern VTR control`.
SMPTE Journal vol. 87, No. 11, Nov. 1978, N.Y. USA pp. 761-763 W. G. Connolly `videotape program production at cbs studio center` p. 763 paragraph "Helical VTR Synchronizer".
Hirai Yohji
Inoue Satoru
Kawaguchi Yuki
Kita Kazuhiro
Sekiguchi Fumio
Chevalier Robert
Chin Tommy P.
Frommer William S.
Sinderbrand Alvin
Sony Corporation
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