Invention Grant
- Patent Title: Data communication apparatuses for communication with an external apparatus over a network, control methods of the data communication apparatuses and storage mediums
- Patent Title (中): 用于通过网络与外部设备通信的数据通信设备，数据通信设备和存储介质的控制方法
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Application No.: US14883022Application Date: 2015-10-14
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Publication No.: US09444750B2Publication Date: 2016-09-13
- 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: Canon U.S.A., Inc. IP Division
- Priority: JP2012-111863 20120515
- Main IPC: H04L12/801
- IPC: H04L12/801 ; H04L12/825
Abstract:
A communication apparatus communicating with an external apparatus via a relaying device is provided. The communication apparatus includes a communication unit configured to perform communication with the relaying device, and a control unit configured to reduce a communication speed of the communication unit to a lower speed if the communication apparatus is to be shifted from a first power mode to a second power mode in which power consumption is lower than that in the first power mode. The communication unit, if the communication apparatus shifts to the second power mode, transmits identification information of the communication apparatus to the relaying device using a first method, and after a predetermined time has passed, transmits the identification information to the relaying device by a second method.
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