Patents by Inventor Roberto M. Frontera

Roberto M. Frontera 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 processing system which generates a waveform with improved pulse width resolution
    Patent number: 5293628
    Abstract: A data processing system (10) capable of generating an output waveform (22) that has enhanced pulse width resolution. In one form, the system uses a counter (34) which is incremented by an input clock (20) running at an operating frequency of the system. Instead of incrementing the counter (34) by one, the counter (34) is incremented by a power of two so that the counter (34) appears to be counting a power of two faster. However, in order to increase the effective resolution of the counter (34), the second edge of the output waveform (22) must be correctly adjusted depending on the desired duty cycle and period. The end result is a counter (34) that can produce a power of two greater resolution while still using the operating frequency of the system as an input clock (20).
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: March 8, 1994
    Assignee: Motorola, Inc.
    Inventors: John A. Langan, Robert J. Amedeo, Roberto M. Frontera