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:
Oct. 22, 2002
Filed:
Nov. 22, 1999
Isamu Kobayashi, Kasugai, JP;
Hiroyuki Sugamoto, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A starting circuit for an integrated circuit (IC) device insures that the IC device is properly initialized before an initialization signal is dropped. The starting circuit, which receives power from high and low potential power supplies, includes a first transistor having a threshold voltage within a known range. The first transistor receives a control voltage generated from the high and low potential power supplies and produces a start (initialization) signal, from the time that the high potential power supply voltage begins to rise to when the control voltage rises to the first transistor threshold voltage. A correction circuit connected to the first transistor adjusts the control voltage in accordance with the threshold voltage of the first transistor.