The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 1976
Filed:
Apr. 01, 1974
Abstract
A keying input apparatus operates as a function of two kinds of timing signals, one being of a first timing period and generally composed of a plurality of digit timing signals generated in a digit sequence and the other being of a second timing period for disabling a display device during that period, such that a plurality of pieces of information, such as the digit timing signals and/or segment selection signals for the display device, are provided from a plurality of output terminals during said first timing signal for the purpose of outputting thereof to the display device, and a plurality of different coded signals, each composed of a plurality of bits, in a bit sequence, are provided from the same said plurality of output terminals during said second timing signal, each of which output terminals is individually connected to a corresponding one of a plurality of key switches, which are commonly connected through a common terminal to a register, so that any desired coded signal, as selected by a corresponding one of said plurality of key switches, can be inputted to the register during the second timing period.