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. 02, 2007
Filed:
Dec. 17, 2004
Akio Hirata, Kyoto, JP;
Akio Hirata, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
There is provided a flip flop circuit with a scan structure which is formed by an input section of a dynamic circuit and an output section of a static circuit wherein data is taken in within an interval of a short pulse width as compared with a clock cycle. In the dynamic circuit of the input section, the number of serially-connected MOS transistors to which a data signal is input is smaller than the number of serially-connected MOS transistors to which a test input signal is input. With this structure, the speed of operation is increased at the time of data storage for a data signal input, and the number of MOS transistors is reduced.