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. 31, 2006
Filed:
Sep. 24, 2003
Eiichi Takahashi, Tsukuba, JP;
Masahiro Murakawa, Tsukuba, JP;
Kenji Toda, Tsukuba, JP;
Tetsuya Higuchi, Tsukuba, JP;
Eiichi Takahashi, Tsukuba, JP;
Masahiro Murakawa, Tsukuba, JP;
Kenji Toda, Tsukuba, JP;
Tetsuya Higuchi, Tsukuba, JP;
Agency of Industrial Science & Technology, Tokyo, JP;
Evolvable System Research Institute, Inc., Tokyo, JP;
Abstract
A digital system that performs a specified function by performing digital processing according to one or more clock signals is provided with a plurality of delay elements which are respectively inserted in a plurality of clock circuits that supply the clock signals in the digital system and each of which is composed of a circuit element that changes a delay time according to a value indicated by a control signal, and a plurality of holding circuits that hold a plurality of control signals to be given to the plurality of delay elements. In the plurality of holding circuits, a value of the control signals held by these holding circuits is changed by external devices according to a probabilistic search technique so that the digital system operates correctly in relation to operation timing.