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:
Aug. 14, 2001
Filed:
Dec. 02, 1994
Tadashi Ohtani, Ohtawaraa, JP;
Yoshikazu Iida, Chigasaki, JP;
Hiroyuki Tsuru, Tokyo, JP;
Daiki Tsukahara, Hiratsuke, JP;
Riichi Higaki, Kawasaki, JP;
Yukikazu Iwane, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
When displaying operational settings and measurements on a pointer type display device, the starting position of the needles is automatically adjusted even when there are battery exchange and needle drive process errors. The display device may be used to display physical quantities using pointers which move above scale plates. Even though the displays may be changed by electric supply loading, battery exchange or a fall in electric supply voltage, the display can be automatically corrected. A memory stores the movement destination position of the pointers, and instructions are generated by a controller which calculates the movement destinations of the pointers after the electrical supply voltage is stabilized properly. The instructions which control operation of a driver for the pointers preferably use a combination of movement to predefined positions and incremental movement. This minimizes the number of instructions when moving automatically, while enabling the pointers to follow movement of operator controls.