×

Static latches for storing display segment information

  • US 4,264,963 A
  • Filed: 06/08/1979
  • Issued: 04/28/1981
  • Est. Priority Date: 06/08/1979
  • Status: Expired due to Term
First Claim
Patent Images

1. A portable, battery operable electronic calculator having a segmented digit display and a display interface system comprising:

  • segment latch means for storing digit segment data received from digit segment data input means;

    digit group enabling means for selectively enabling one of a plurality of digit segment latch groups of the segment latch means in response to a digit group select input signal to store digit segment data in the selected digit segment latch group; and

    select logic means connected to the segment latch means for receiving a group of display segment output signals, the select logic means being responsive to a group select signal input, for selectively connecting one of a plurality of subgroups of the display segment output signals to display interface signal converter means for providing a display drive signal.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×