Patents by Inventor Glen J. Zoerner

Glen J. Zoerner 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).

  • Patent number: 5729151
    Abstract: A method for testing a phase locked loop (103) within an integrated circuit (100) is performed by utilizing an on-chip timer module (100) as a frequency counter (121) for counting the number of clock pulses outputted from the phase locked loop circuit (103) over a selected time period. The test is performed by an external testing device (111) having access to the address/data bus (110) coupled to both the phase locked loop circuit (103) and the timer module (109).
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: March 17, 1998
    Assignee: Motorola Inc.
    Inventors: Glen J. Zoerner, Danny H. Nguyen
  • Patent number: 4636587
    Abstract: An electronic switch for supplying power to a digital telephone which consumes substantially no power in the idle mode. A transistor for supplying power to the digital telephone is latched on in either of two situations. In the first situation, the telephone's hookswitch is closed. A second transistor turns on and maintains the first transistor on even after the hookswitch has been opened. In the second situation, a voltage pulse is applied to the input voltage conductor lines causing the first and second transistors to turn on. Again, the second transistor maintains the first transistor on. The circuit is inactivated by a sleep signal which turns off the second transistor which in turn turns off the first.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: January 13, 1987
    Assignee: Motorola, Inc.
    Inventor: Glen J. Zoerner