Patents Examined by A. D. Pelllinen
  • Programmable digital to analog converter
    Patent number: 5410186
    Abstract: By providing data to a selection switch via a multiplexor so it can be programmed to supply either a current programmably controlled by a shift register or a current fixed by a fused resistor. Selected signals coupled to the multiplexor control the selection of either the resistor or the shift register thus, providing an improved current selection device which is capable of automatically selecting and programming the current supplied to circuits such as digital to analog converters.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: April 25, 1995
    Assignee: International Business Machines Company
    Inventors: Anthony R. Bonaccio, John E. Gersbach, Christian J. Goetschel, Sharon L. Von Bruns