Patents by Inventor Leo Warmuth

Leo Warmuth 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).

  • Data transmission method
    Patent number: 5438371
    Abstract: At least a first and a second digital signal, both in parallel form, are converted to a single serial signal and transmitted from a digital color decoder to a signal processing unit so as to avoid picture disturbances in the signal processing unit. The first digital signal is dependent on the instantaneous value of a clock frequency used in the decoder for processing a digital color picture signal, and the second digital signal is dependent on the instantaneous value of a chrominance subcarrier frequency generated in the decoder and used for color decoding.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: August 1, 1995
    Assignee: U.S. Philips Corporation
    Inventors: Rolf-Dieter Gutsmann, Siegfried Bohme, Hartmut Hackmann, Leo Warmuth
  • Circuit arrangement for separating the components of a PAL color television signal
    Patent number: 4409612
    Abstract: Circuit arrangement for separating the components of a PAL color television signal, in which the (digitized) u- and v-signals of the subcarrier frequency are passed through two delay lines which produce different time delays (for example 283.5 and 284 chrominance subcarrier periods): an improved cross-talk attenuation from the luminance signal to the chrominance signals in the lower sideband is then obtained.
    Type: Grant
    Filed: September 17, 1981
    Date of Patent: October 11, 1983
    Assignee: U.S. Philips Corporation
    Inventor: Leo Warmuth