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:
Jan. 13, 2015
Filed:
Jul. 12, 2013
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Kazuhiro Matsunami, Matsumoto, JP;
Mutsuo Nishikawa, Matsumoto, JP;
Fuji Electric Co., Ltd., , JP;
Abstract
In aspects of the invention, an auxiliary memory circuit includes a shift register wherein a plurality of flip-flops are cascade-connected and a plurality of inversion circuits that invert and output outputs of each D flip-flop. A main memory circuit includes a switch, which acts in accordance with a signal from the auxiliary memory circuit, and an EPROM connected in series to the switch and driven by a writing voltage. A variable resistance circuit includes a switch, which acts in accordance with a signal from the auxiliary memory circuit, and a resistor connected in series to the switch. With aspects of the invention, it is possible for terminals of the writing voltage and a writing voltage to be commonized. Also, it is possible to provide a low-cost semiconductor physical quantity sensor device that can carry out electrical trimming with the voltage when writing into the EPROM kept constant.