×

Audio mixer/pre-amplifier

  • US 4,524,452 A
  • Filed: 07/20/1983
  • Issued: 06/18/1985
  • Est. Priority Date: 07/20/1983
  • Status: Expired due to Fees
First Claim
Patent Images

1. A stereo pre-amplifier for mixing audio input signals comprising:

  • (a) a means for supplying input signals including stereo phonograph signals and stereo auxilary level signals and low impedance signals to said pre-amplifier;

    (b) a means for supplying output signals from said pre-amplifier;

    (c) a first summing means for combining said phonograph signals and said auxilary level signals;

    (d) a second summing means for combining said low impedance signals;

    (e) a cueing means for sampling said input signals prior to said signals being input to said first summing amplifier said cueing means including a means to select one or more of said input signals to be sampled;

    (f) a third summing means for combining said sampled signals;

    (g) a fourth summing means combining the output of said first summing means and said second summing means whereby said fourth summing means provides pre-amplifier output;

    (h) a fifth summing means for combining the output of said first summing means and said second summing means whereby said fifth summing means provides an output to auxilary storage means;

    (i) a means for disabling the output of said second summing means from inputing into said fifth summing means;

    (j) a means for combining both stereo channels of the inputs of said fourth summing means whereby each of the output channels of said fourth summing means are monophonic signals; and

    (k) a means for combining both stereo channels of the output of said third summing means whereby each of the output channels of said third summing means are monophonic signals.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×