Patents by Inventor Miloslav Tryzna

Miloslav Tryzna has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Television receiver for receiving a picture carrier whose amplitude is modulated with a video signal, and a sound carrier whose frequency is modulated with an audio signal
    Patent number: 4349842
    Abstract: Television receiver for receiving a picture carrier whose amplitude is modulated with a video signal and a sound carrier whose frequency is modulated with an audio signal. The sound intercarrier signal produced by a mixing circuit is divided by a detected amplitude-modulated interference have, a signal of a substantially constant amplitude being thus produced. Consequently, a limiter preceding the frequency demodulator is not required.
    Type: Grant
    Filed: October 16, 1980
    Date of Patent: September 14, 1982
    Assignee: U.S. Philips Corporation
    Inventors: Hans J. Apeldoorn, Miloslav Tryzna
  • CRT Beam current control apparatus
    Patent number: 4224640
    Abstract: In a television picture display device wherein a cathode of a picture display tube is driven by an emitter-follower and a control signal for a beam current reference level control circuit is obtained from the collector circuit of this emitter-follower, measures are taken to compensate for leakage currents from and to the cathode. To this end a blacker-than-black current compensation circuit is provided while furthermore it is ensured that the blacker-than-black curent can be processed by the beam current reference level control circuit.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: September 23, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Paulus J. M. Hovens, Miloslav Tryzna, Wouter Smeulers, Willem H. Amsen