Invention Grant
US08972769B2 Data processing apparatus and control method for controlling clock frequency based on calculated frequency-to-response-time ratios
有权
数据处理装置和控制方法，用于根据计算出的频率响应时间比来控制时钟频率
- Patent Title: Data processing apparatus and control method for controlling clock frequency based on calculated frequency-to-response-time ratios
- Patent Title (中): 数据处理装置和控制方法，用于根据计算出的频率响应时间比来控制时钟频率
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Application No.: US13011712Application Date: 2011-01-21
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Publication No.: US08972769B2Publication Date: 2015-03-03
- Inventor: Akio Nakagawa , Hisashi Ishikawa
- Applicant: Akio Nakagawa , Hisashi Ishikawa
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2010-026998 20100209; JP2010-252956 20101111
- Main IPC: G06F1/04
- IPC: G06F1/04 ; G06F15/16 ; G06F9/30 ; G06F9/40 ; G06F9/00 ; G06F1/32
Abstract:
A data processing apparatus includes: a plurality of processing units adapted to process data according to input operation clocks; and a control unit adapted to measure response times of the plurality of processing units when the operation clocks of a common frequency are supplied to the plurality of processing units, and to control a frequency of the operation clocks to be supplied to at least one of the plurality of processing units so that a plurality of measured response times become closer to each other.
Public/Granted literature
- US20110197089A1 DATA PROCESSING APPARATUS AND CONTROL METHOD THEREOF Public/Granted day:2011-08-11
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