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High speed tape duplicating equipment

  • US 5,233,477 A
  • Filed: 04/10/1991
  • Issued: 08/03/1993
  • Est. Priority Date: 01/06/1987
  • Status: Expired due to Term
First Claim
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1. A system for duplicating pre-recorded audio material on magnetic tape, the pre-recorded material having a plurality of discrete channels of information, comprising,(a) means for supplying audio source signals from the pre-recorded material in a digital form, said digital source signals including at least one of the channels of information,(b) means for identifying portions of said digital source signals with the channel of said digital source signals,(c) means for making at least one master library recording from said digital source signals, said master library recording containing at least one of the channels of information from the pre-recorded material,(d) means for generating digital master library signals from said master library recording by playing back at least a portion of said master library recording,(e) means for electronically storing said digital master library signals,(f) means for repeatedly reading said stored signals in either a forward or reverse direction, and(g) duplicating means for making a plurality of duplicate recordings as said stored signals are read out by said reading means, without requiring any further playback of said master library recording while said stored digital signals remain in said storing means,whereby at least a portion of said stored signals may be simultaneously read out and duplicated in a forward direction on said duplicate recordings while other of said stored signals are read out and duplicated in a reverse direction on the same recording.

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