×

Phonograph record detecting arrangement

  • US 3,966,330 A
  • Filed: 11/27/1974
  • Issued: 06/29/1976
  • Est. Priority Date: 12/04/1973
  • Status: Expired due to Term
First Claim
Patent Images

1. Apparatus for use in detecting the presence of a disc record on a turntable, including means comprising a source of energy and means for detecting the energy from said source, the arrangement being such that at least a part of a path for the energy set up between the source means and the detector means is in a region adjacent the surface of the turntable on which the the record rests, and that the path is modified by the presence of a disc record on the turntable.

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