Patents Assigned to Electromechanics Research
  • Filters for tape recording systems
    Patent number: 4019203
    Abstract: A tape recorder having a solenoid coil-plunger type actuator for performing a mechanical function within the recorder incorporates the solenoid coil into the circuitry to serve as the inductive component of a filter adapted to filter the noise components produced by the DC tape driving motor, or to filter the output of the DC wave rectifier or to filter other outputs within the recorder.
    Type: Grant
    Filed: October 31, 1975
    Date of Patent: April 19, 1977
    Assignee: Electromechanics Research
    Inventors: Bill Soichro Yamanashi, Tadashi Fujita
  • Automatic stopper for multitrack recorder
    Patent number: 4005484
    Abstract: A multitrack tape recorder is provided with a set of pushbutton stop switches and associated circuitry adapted to preset the recorder to stop playing or recording at the end of any desired channel.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: January 25, 1977
    Assignee: Electromechanics Research
    Inventor: Tadashi Fujita