Patents by Inventor Jean-Pierre Landragin

Jean-Pierre Landragin 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).

  • Video signal correction device
    Patent number: 4972263
    Abstract: A device for correcting line tilt which shows as a parasitic tilt of the plateaus of a video signal, the device includes an adder circuit (37) for adding a correction signal to a video signal to be corrected, the video signal to be corrected (36) being conveyed with its total passband to a first input (47) of the adder and the corrected signal being available at an output (35) of the adder. A second input (48) of the adder is coupled to an output of a frequency filter (38) to whose input (49) the video signal to be corrected is applied.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: November 20, 1990
    Assignee: U.S. Philips Corporation
    Inventor: Jean-Pierre Landragin