Patents by Inventor Dennis Cummins

Dennis Cummins 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).

  • Methods, devices and computer program products for controlling power supplied to devices coupled to an uninterruptible power supply (UPS)
    Publication number: 20060041767
    Abstract: Methods, devices, systems and computer program products for operating a networked device coupled to an uninterruptible power supply (UPS) are provided. One or more networked devices are programmed with priority information. The one or more networked devices are further programmed to enter a reduced power state based on the priority information following receipt of a power interruption indication signal from the UPS. The power interruption indication signal indicates that power from a primary source of power has been interrupted.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 23, 2006
    Inventors: Marcus Maxwell, Dennis Cummins
  • Keyboard and controller with a three wire half duplex asynchronous and bidirectional communications architecture
    Patent number: 5361376
    Abstract: A controller and communications architecture for controlling the operation of computer I/O devices such as a keyboard or the like includes two microprocessors, a three-wire half duplex communications interface and a transmission protocol allow data transmission, error, detection and contention resolution. The transmission protocol allows the microprocessors to transmit serial data over the interface which includes a single shared data line and two simplex clock lines.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: November 1, 1994
    Assignee: International Business Machines Corporation
    Inventors: Dennis A. Cummins, Wayne R. Hucaby