Patents by Inventor William H. Bolt

William H. Bolt 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).

  • Powered conservation system in battery powered keyboard device including a microprocessor
    Patent number: 4649373
    Abstract: In a self-contained battery powered keyboard entry device, the keyboard is driven from a microprocessor and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter. The sense lines are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode.
    Type: Grant
    Filed: August 10, 1983
    Date of Patent: March 10, 1987
    Assignee: International Business Machines Corporation
    Inventors: Patrick M. Bland, William H. Bolt