Patents by Inventor Helfried Kurzmann

Helfried Kurzmann 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).

  • Circuit arrangement for a dropout detector
    Patent number: 4106063
    Abstract: In a circuit arrangement for a dropout detector for the detection of dropouts in signals which are reproduced from a record carrier, the signal path includes an amplitude discriminator before the threshold device which supplies a switching signal in the event of a dropout, the discriminator characteristic between two threshold levels of the output signals having a steep edge for amplitude discrimination in whose range the signal level which is decisive for the actuation of the threshold device is situated.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: August 8, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Robert Lackner, Harald Melwisch, Helfried Kurzmann