Invention Grant
- Patent Title: Information processing apparatus capable of correcting time-of-day management function, control method therefor, and storage medium
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Application No.: US14539047Application Date: 2014-11-12
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Publication No.: US09703316B2Publication Date: 2017-07-11
- Inventor: Tomohiro Kimura
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2013-235843 20131114
- Main IPC: G06F1/14
- IPC: G06F1/14 ; H04J3/06

Abstract:
An information processing apparatus that is capable of correcting a time-of-day management function in the information processing apparatus even in an environment where the time of day cannot be properly measured in the information processing apparatus in a power-saving mode. A first time of day is obtained from an external apparatus on a network. A second time of day is identified based on the number of input CPU clocks per prescribed time period. The number of input CPU clocks per prescribed time period is corrected based on the first time of day and the second time of day.
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