Patents Represented by Attorney J. B. Hoffnagle

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  • Bit expansion circuit
    Patent number: 4404556
    Abstract: A n-bit parallel output port of a programmable controller (22) is coupled to a bit expansion circuit (24). A plurality of channel-select bits are decoded by a multiplexer board (26) to select and enable any one of sixteen output channels. A plurality of line-select bits are fed to a memory section (28) to facilitate the selection of any one of a plurality of output lines associated with the enabled channel. The selected output line remains latched in their most recent output state when the selected channel is disabled by the controller (22).
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: September 13, 1983
    Assignee: Western Electric Company, Inc.
    Inventors: Joseph A. Messina, William R. Sullivan
  • Flashlight
    Patent number: D293027
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: December 1, 1987
    Assignee: Black & Decker Inc.
    Inventor: Donald W. Zurwelle