Communication apparatus, control method for communication apparatus, communication system, and program

Patent metadata

Field	Value
Publication number	US-2016234784-A1
Application number	US-201615133736-A
Country	US
Kind code	A1
Filing date	Apr 20, 2016
Priority date	Jan 31, 2012
Publication date	Aug 11, 2016
Grant date	—

Abstract

A communication apparatus includes a communication unit configured to communicate in a first communication mode in which a memory of the communication apparatus is accessed by another communication apparatus, a detection unit configured to detect an access from the another communication apparatus to the memory of the communication apparatus, and a shift unit configured to shift an operation mode of the communication apparatus in response to a condition including at least the access to the memory detected by the detection unit.

First claim

1 . A communication apparatus comprising:
a wireless communication unit configured to perform communication, compatible with near field communication (NFC) standard, for another communication apparatus to access a storage unit included in the communication apparatus, the wireless communication unit being operable with power supplied from the other communication apparatus in a case where the communication apparatus is at least in a power-off state; and a shift unit configured to shift the communication apparatus from the power-off state into a power-on state in a case where predetermined information has been written in the storage unit in communication, with the other communication apparatus, having been started using the wireless communication unit when the communication apparatus is in the power-off state, wherein, in a case where the predetermined information has not been written in the storage unit in communication, with the other communication apparatus, having been started using the wireless communication unit when the communication apparatus is in the power-off state, the shift unit does not shift the communication apparatus from the power-off state into the power-on state.

2 . The communication apparatus according to claim 1 , wherein, in a case where the communication apparatus is shifted into the power-on state by the shift unit, the communication apparatus activates an operating unit configured to control the communication apparatus and operate with power supplied by a battery included in the communication apparatus.

3 . The communication apparatus according to claim 2 , wherein the operating unit is a processor.

4 . The communication apparatus according to claim 2 , wherein, in a case where the operating unit is activated, the wireless communication unit is able to perform two-way communication.

5 . The communication apparatus according to claim 2 , wherein the shift unit is configured to activate the operating unit by causing the wireless communication unit to send an activation signal to the operating unit via a signal line for connecting the wireless communication unit with the operation unit.

6 . The communication apparatus according to claim 1 , wherein, in a case where the predetermined information has been written in a predetermined storage area in the storage unit, the shift unit shifts the communication apparatus from the power-off state to the power-on state.

7 . The communication apparatus according to claim 6 , wherein, in a case where the predetermined information has not been written in the predetermined storage area in the storage unit when the communication apparatus is in the power-off state, the shift unit does not shift the communication apparatus from the power-off state into the power-on state.

8 . The communication apparatus according to claim 6 , wherein, in a case where information has been written in a storage area different from the predetermined storage area, the shift unit does not shift the communication apparatus from the power-off state into the power-on state.

9 . The communication apparatus according to claim 1 , wherein, in a case where information has been written, from the other communication apparatus, in a plurality of addresses in the storage unit in a predetermined order, the shift unit shifts the communication apparatus from the power-off state into the power-on state.

10 . The communication apparatus according to claim 9 , wherein, in a case where information has not been written, from the other communication apparatus, in the plurality of addresses in the storage unit in the predetermined order, the shift unit does not shift the communication apparatus from the power-off state into the power-on state.

11 . The communication apparatus according to claim 9 , wherein, in a case where information has been written, from the other communication apparatus, in the plurality of addresses in the storage unit in an order different from the predetermined order, the shift unit does not shift the communication apparatus from the power-off state into the power-on state.

12 . The communication apparatus according to claim 1 , wherein the communication apparatus is configured to perform a handover from near field communication (NFC) to Wi-Fi in response to shift performed by the shift unit.

13 . The communication apparatus according to claim 1 , wherein the communication apparatus is configured to perform communication for executing service indicated by service information communicated using the wireless communication unit in response to shift performed by the shift unit.

14 . The communication apparatus according to claim 1 , wherein the wireless communication unit is configured to perform communication in a card emulation mode specified by near field communication (NFC) standard.

15 . The communication apparatus according to claim 1 , wherein the communication apparatus is a camera.

16 . A method for controlling a communication apparatus including a wireless communication unit configured to perform communication, compatible with near field communication (NFC) standard, for another communication apparatus to access a storage unit included in the communication apparatus, the wireless communication unit being operable with power supplied from the other communication apparatus in a case where the communication apparatus is at least in a power-off state, the method comprising:
shifting the communication apparatus from the power-off state into a power-on state in a case where predetermined information has been written in the storage unit in communication, with the other communication apparatus, having been started using the wireless communication unit when the communication apparatus is in the power-off state, not shifting the communication apparatus from the power-off state into the power-on state in a case where the predetermined information has not been written in the storage unit in communication, with the other communication apparatus, having been started using the wireless communication unit when the communication apparatus is in the power-off state.

17 . A storage medium storing a program for causing a communication apparatus including a wireless communication unit configured to perform communication, compatible with near field communication (NFC) standard, for another communication apparatus to access a storage unit included in the communication apparatus, the wireless communication unit being operable with power supplied from the other communication apparatus in a case where the communication apparatus is at least in a power-off state, to execute a method, the method comprising:
shifting the communication apparatus from the power-off state into a power-on state in a case where predetermined information has been written in the storage unit in communication, with the other communication apparatus, having been started using the wireless communication unit when the communication apparatus is in the power-off state, not shifting the communication apparatus from the power-off state into the power-on state in a case where the predetermined information has not been written in the storage unit in communication, with the other communication apparatus, having been started using the wireless communication unit when the communication apparatus is in the power-off state.

Assignees

• Canon Kk

Inventors

• Hamada Masashi

Classifications

• H04B5/24

  Inductive coupling · CPC title

• H04W52/0229 Primary

  where the received signal is a wanted signal · CPC title

• H04W36/36

  by user or terminal equipment · CPC title

• H04W4/008

  Electricity · mapped topic

• H04W36/362

  Conditional handover · CPC title