Patents by Inventor Don W. Piller

Don W. Piller 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).

  • Clustered terminals with writable microcode memories & removable media for applications code & transactions data
    Patent number: 4468750
    Abstract: A clustered system of data-entry terminals includes a plurality of physically separate data-entry terminals coupled to a communications link in a cluster. Each of the terminals includes a programmable digital processor for transferring data and programs over the communications link. Each of the terminals further includes entry devices and display devices for communicating information between an operator and the programmable processor.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: August 28, 1984
    Assignee: International Business Machines Corporation
    Inventors: Martin E. Chamoff, Don W. Piller
  • Electronic point-of-sale system using direct-access storage
    Patent number: 4328544
    Abstract: A standalone point-of-sale terminal in a unitary physical package has input/output devices for communicating transaction data between the terminal and an operator, and also has a cash drawer. These devices and a direct-access storage are controlled by a programmable processor which executes low-level routines from read-only addressable memory and serially replaceable high-level applications programs from read/write addressable memory. Both applications programs and transaction data are stored on a single non-volatile, removable storage medium.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: May 4, 1982
    Assignee: International Business Machines Corporation
    Inventors: Harry L. Baldwin, Beryl D. Bergschneider, Martin E. Chamoff, Irving L. Miller, Don W. Piller, Max J. Robinett, Donald L. Thorson