Patents by Inventor Jose L. Valdes

Jose L. Valdes 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 synchronization circuit
    Patent number: 4369515
    Abstract: A circuit which monitors the frequency of an incoming signal and synchronizes an internally generated clock signal to the incoming signal. A retriggerable monostable multivibrator monitors the incoming signal which is synchronized by means of a phase lock loop circuit to a signal generated by a voltage controlled multivibrator. A crystal oscillator provides clock signals upon detection of failure of the incoming clock signal.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: January 18, 1983
    Assignee: GTE Automatic Electric Labs Inc.
    Inventor: Jose L. Valdes