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:
Dec. 16, 1986
Filed:
Oct. 21, 1983
Toru Sekiguchi, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A tape timer apparatus is disclosed. Apparatus is provided for producing frame pulses indicating a frame period in a running tape and for producing a tape direction signal. An up/down counter counts up or down, as determined by the tape direction signal, in response to the frame pulses. A detecting circuit generates a detection signal indicating whether the frequency of the frame pulse has exceeded a predetermined frequency. A circuit is also provided for dividing the frame pulses by a predetermined number and generating a single frequency divided pulse each time the predetermined number of frame pulses is generated. A selection circuit selects, in accordance with the detection circuit, either the frame pulse or the frequency divided pulse. A microcomputer receives the pulse from the selecting means as an interruption demand pulse and calculates the tape time on the basis of the value counted by the up/down counter.