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. 20, 1999
Filed:
Sep. 18, 1997
Takashi Niimura, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
After a level of a selection signal C is changed, a currently output clock signal present at an output line is interrupted (set to be a low level) at the fall of the level of the currently output clock signal (A or B), and a switching operation is started. After the switching, the supply of an extracted clock signal to the output line is resumed when the level of the extracted clock signal (A or B) is changed. The best clock signal, which is synchronized with a plurality of source clock signals, can be provided to another system such as an IC card without increasing the number of parts. No noise is generated at a clock signal switching time, and the time required for switching can be kept to a minimum.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile