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:
Mar. 06, 2012
Filed:
Dec. 14, 2010
Akinori Matsumoto, Osaka, JP;
Shiro Sakiyama, Kyoto, JP;
Shiro Dosho, Osaka, JP;
Yusuke Tokunaga, Hyogo, JP;
Takashi Morie, Osaka, JP;
Akinori Matsumoto, Osaka, JP;
Shiro Sakiyama, Kyoto, JP;
Shiro Dosho, Osaka, JP;
Yusuke Tokunaga, Hyogo, JP;
Takashi Morie, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a coupled ring oscillator including q ring oscillators each including p inverter circuits connected together to form a ring shape, and a phase coupling ring including (p×q) phase coupling circuits each of which is configured to couple an output of one of the p inverter circuits of one of the q ring oscillators to an output of one of the p inverter circuits of another one of the q ring oscillators in a predetermined phase relationship, and which are connected together to form a ring shape, for at least one group made up of one of the p inverter circuits in each of the q ring oscillators, outputs of the q inverter circuits belonging to the at least one group are fixed in phase with one another, the q ring oscillators are caused to oscillate in the in-phase fixed state, and then, the outputs of the q inverter circuits are released from the in-phase fixed state.