US 5,636,311 AGranted

Tape dubbing and divided master tape producing system

AssigneeVictor Company of Japan, Ltd.

InventorYoichiro Nakatani

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Abstract

A high speed dubbing apparatus for producing magnetic tapes such as video, audio or computer soft tapes, is provided. Typical form of the apparatus may comprise 3 master tape playback devices for synchronously playing back 3 divided master tapes respectively recorded with 3 divided master signals obtained by dividing time-divisionally an original master signal having an original data sequence by 3 and for outputting the 3 divided master signals, a triple speed recording signal producing device for time-compressing each of the 3 divided master signals to 1/3 to obtain a triple speed recording signal from the 3 divided master signals while restoring the original data sequence in the triple speed recording signal and a recording device for recording the triple speed recording signal on a plurality of slave tapes running at a speed which is 3 times the normal playback speed of the slave tapes.

Claims12

Dependent claims

A dubbing apparatus comprising:

an original master tape playback device for playing back an original master tape recorded with an original master signal having an original signal sequence;
signal dividing means for dividing said original master signal time-divisionally into predetermined signal segments of equal length forming an N number of divided master signal chains by distributing said predetermined signal segments in consecutive succession among said N number of divided master signal chains where N is an integer greater than 1;
N number of master signal recording devices for respectively recording said N number of divided master signal chains along with N series of time codes respectively on N number of master tapes;
control means for causing said N number of master signal recording devices to drive intermittently said N number of master tapes to be recorded, so that each of said N number of divided master signal chains becomes continuous without time interruption on each of said N number of master tapes;
N number of master tape playback devices for synchronously and simultaneously playing back at a real time speed said N number of master tapes together by reading said N series of time codes;
N-times speed recording signal producing means for time-compressing each of said N number of divided master signal chains reproduced from said N number of master tape playback devices into 1/N to obtain N-times speed recording signals while restoring said original signal sequence in each of said N-times speed recording signals;
and
recording means for recording said N-times speed recording signals on a plurality of slave tapes each running at a speed which is N-times a normal playback speed of said slave tapes.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/483,394Filed 7 Jun 1995 · continuation in part
Priority: 14 Aug 1992
Granted: 3 Jun 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G11B 5/86
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor: re-recording, i.e.…
G11B 20/10
Signal processing not specific to the method of recording or reproducing; Circuits therefor: digital recording or reproducing
G11B 27/032
Electronic editing of digitised analogue information signals, e.g. audio or video signals: on tapes
H04N 5/9205
Involving the multiplexing of an additional signal and the video signal: the additional signal being at least another television signal

Family

Serial930,819Parent of this continuation · filed 14 Aug 1992
Serial116,948Parent of this continuation · filed 3 Sep 1993
Serial396,454Parent of this continuation-in-part · filed 28 Feb 1995
US 5,481,411 AParent of this continuation-in-part
US 5,636,311 AThis patent

From the US filing history. Foreign family members aren’t listed.