Patents by Inventor George E. Andrews

George E. Andrews 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).

  • Clock recovery and retiming scheme with saw filter phase trimming to achieve desired system phase adjustment
    Patent number: 4715049
    Abstract: A clock recovery and data retiming circuit is disclosed which utilizes a SAW filter to form the recovered clock signal. The phase shift of the received data signal associated with various attenuation and distortion effects of the communication channel is compensated for and removed from the retimed data signal by adjusting the phase of the SAW filter.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: December 22, 1987
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: George E. Andrews, Paul C. Davis, Dennis C. Farley, Stanley H. Kravitz, Thrygve R. Meeker, Owe G. Petersen, Arthur W. Schelling