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. 08, 2008
Filed:
May. 17, 2005
Takanobu Naruse, Nagoya, JP;
Hirokatsu Noguchi, Yamagata, JP;
Kazuhide Kawade, Kiyosu, JP;
Yoshiyuki Matsumoto, Takasaki, JP;
Takanobu Naruse, Nagoya, JP;
Hirokatsu Noguchi, Yamagata, JP;
Kazuhide Kawade, Kiyosu, JP;
Yoshiyuki Matsumoto, Takasaki, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
It is aimed at providing a data processor capable of suppressing a sudden current change from the viewpoint of a synchronization clock. A data processorcomprises a clock pulse generation circuit and a circuit module operating on input clock signal CLKi output from the clock pulse generation circuit. In case of restoration from a power-on reset period or a standby state, the clock pulse generation circuit stepwise changes frequencies of the clock signal from low to high frequencies. This makes it possible to prevent a power supply current from suddenly increasing in case of restoration from the power-on reset period or the standby state.