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Linear control arrangements

  • US 5,623,551 A
  • Filed: 06/09/1993
  • Issued: 04/22/1997
  • Est. Priority Date: 07/20/1992
  • Status: Expired due to Term
First Claim
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1. A linear control apparatus comprising:

  • a plurality of linear potentiometers each having a knob movable throughout a plurality of positions in which each of the positions represents a value of a respective parameter;

    mixer means for receiving a plurality of channels of input data having the parameters represented by the linear potentiometers and for mixing the received input data;

    storage means operable in a recording mode for recording data of at least one of said linear potentiometers in which the recorded data of a respective linear potentiometer is representative of a data profile which corresponds to the positions of the respective knob over a predetermined period of time, said storage means being further operable in an amending mode for amending a desired portion of the data profile in which the desired portion represents a portion less than the data profile such that a revised data profile is obtained in the amending mode which includes a portion having the recorded data and another portion having amended data and in which the amended data of the desired portion is recorded in the amending mode such that the current recorded data represents the revised data profile; and

    a plurality of switches each disposed within a respective one of said knobs for selectively enabling and disabling a selected one of the recording and amending modes.

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