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:
Jul. 23, 2002
Filed:
Aug. 08, 2001
Satoru Kominami, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
In a conventional signal transmission device that transmits signals fed thereto to another device through a transformer, when the direction of the current flowing through the primary coil of the transformer is switched by switching devices connected in series between two different potentials, the timing with which the switching device that has been receiving current up to the moment is turned off is delayed from the timing with which the other switching devices are turned on or off to reduce overshoots and undershoots. This, however, may distort the square wave appearing across the secondary coil and make correct signal transmission impossible. To prevent this, a signal transmission device of the invention additionally has a waveform adjustment circuit that controls the delay time produced by a timing adjustment circuit according to changes in the states of control signals.