Electronic apparatus, control method and recording medium

• US 9,595,838 B2
• Filed: 02/04/2013
• Issued: 03/14/2017
• Est. Priority Date: 02/06/2012
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tanabe, Akihiro
• Primary Examiner(s): Rossoshek, Helen
• Application Number:
  US13/758,738
• Publication Number:
  US 20130200843A1
• Time in Patent Office: 1,499 Days
• Field of Search: 320/108, 320/114, 320/162
• US Class Current: 1/1
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 90/12 Electric charging stations

Abstract

An electronic apparatus includes a power receiving unit that receives power from a power transmitting apparatus wirelessly, a connection unit that connects an external apparatus, a detection unit that detects power received by the power receiving unit, and a control unit that changes a mode of the electronic apparatus to a first mode after the detection unit detects that power received by the power receiving unit is equal to or lower than a predetermined value if the electronic apparatus is in a second mode.

Claims

1. An electronic apparatus comprising:

a power receiving antenna that receives power from a power transmitting apparatus wirelessly;

a connection unit that connects an external apparatus different from the power transmitting apparatus and receives power from the external apparatus; and

a control unit that performs determining of whether to change a mode of the electronic apparatus between a first mode and a second mode in a case where the connection unit connects the external apparatus, the first mode used for performing a predetermined process and a charging process in parallel using the power received from the external apparatus different from the power transmitting apparatus, the second mode used for performing the predetermined process and the charging process in parallel using power received from the power transmitting apparatus,

wherein, in the second mode, in a case where the determining performed by the control unit has determined to change the mode of the electronic apparatus to the first mode, the control unit monitors the power being received from the power transmitting apparatus via the power receiving antenna before the control unit changes the mode of the electronic apparatus to the first mode, and the control unit does not change the mode of the electronic apparatus to the first mode until the power from the power transmitting apparatus becomes equal to or lower than a first predetermined value,

wherein, in the first mode, in a case where the determining performed by the control unit has determined to change the mode of the electronic apparatus to the second mode, the control unit monitors the power being received from the power transmitting apparatus via the power receiving antenna before the control unit changes the mode of the electronic apparatus to the second mode, and the control unit does not change the mode of the electronic apparatus to the second mode until the power from the power transmitting apparatus becomes equal to or higher than a second predetermined value, and

wherein the first predetermined value is lower than the second predetermined value.

2. The electronic apparatus according to claim 1, wherein the control unit does not perform the predetermined process and the charging process using power received from the power transmitting apparatus after the power received by the power receiving antenna becomes equal to or lower than the first predetermined value if the electronic apparatus is in the second mode.

3. The electronic apparatus according to claim 1, wherein the control unit does not change the mode of the electronic apparatus to the first mode before the power received by the power receiving antenna becomes equal to or lower than the first predetermined value if the electronic apparatus is in the second mode.

4. The electronic apparatus according to claim 1, wherein the control unit does not change the mode of the electronic apparatus to the second mode until the electronic apparatus and the external apparatus are disconnected if the electronic apparatus is in the first mode.

5. The electronic apparatus according to claim 1, wherein the control unit changes the mode of the electronic apparatus to the second mode after the power received by the power receiving antenna becomes higher than the predetermined value if the electronic apparatus is in the first mode.

6. The electronic apparatus according to claim 1, further comprising a first communication unit that communicates with the external apparatus, wherein the control unit does not change the mode of the electronic apparatus to the second mode if the electronic apparatus is in the first mode and the first communication unit transmits data to the external apparatus.

7. The electronic apparatus according to claim 1, further comprising a first communication unit that communicates with the external apparatus, wherein the control unit does not change the mode of the electronic apparatus to the second mode if the electronic apparatus is in the first mode and the first communication unit receives data from the external apparatus.

8. The electronic apparatus according to claim 1, further comprising an error detection unit that detects an error relating to a transmission of power from the power transmitting apparatus, wherein the control unit changes the mode of the electronic apparatus to the first mode if the electronic apparatus is in the second mode and the error detection unit detects the error.

9. The electronic apparatus according to claim 1, further comprising a second communication unit that communicates with the power transmitting apparatus, wherein the second communication unit transmits predetermined data to the power transmitting apparatus if the electronic apparatus is in the first mode, and the predetermined data includes data for indicating that the electronic apparatus uses power received from the external apparatus so as to perform at least one of the predetermined process and the charging process.

10. The electronic apparatus according to claim 1, further comprising a second communication unit that communicates with the power transmitting apparatus, wherein the second communication unit transmits predetermined data to the power transmitting apparatus if the electronic apparatus is in the first mode, and the predetermined data includes data for indicating that the electronic apparatus does not use power received from the power transmitting apparatus so as to perform at least one of the predetermined process and the charging process.

11. The electronic apparatus according to claim 1, further comprising a second communication unit that communicates with the power transmitting apparatus, wherein the second communication unit continues to communicate with the power transmitting apparatus after the electronic apparatus is changed to the first mode from the second mode.

12. The electronic apparatus according to claim 1, further comprising a resonant circuit that sets a frequency of the power receiving antenna to a predetermined frequency.

13. The electronic apparatus according to claim 1, wherein the predetermined process includes at least one of a process relating to wireless communication and a process relating to reproduction.

14. The electronic apparatus according to claim 1, wherein the electronic apparatus includes an apparatus based on a Near Field Communication (NFC) standard.

15. The electronic apparatus according to claim 1, wherein the external apparatus is different from a battery.

16. A method comprising:

receiving power from a power transmitting apparatus wirelessly via a power receiving antenna;

connecting an external apparatus different from the power transmitting apparatus and receiving power from the external apparatus; and

controlling that performs determining of whether to change a mode of an electronic apparatus between a first mode and a second mode in a case where the connecting connects the external apparatus,

the first mode used for performing a predetermined process and a charging process in parallel using the power received from the external apparatus different from the power transmitting apparatus, the second mode used for performing the predetermined process and the charging process in parallel using power received from the power transmitting apparatus,

wherein, in the second mode, in a case where the determining performed by the controlling has determined to change the mode of the electronic apparatus to the first mode, the controlling monitors the power being received from the power transmitting apparatus via the power receiving antenna before the changing the mode of the electronic apparatus to the first mode, and the controlling does not change the mode of the electronic apparatus to the first mode until the power from the power transmitting apparatus becomes equal to or lower than a first predetermined value,

wherein, in the first mode, in a case where the determining performed by the controlling has determined to change the mode of the electronic apparatus to the second mode, the controlling monitors the power being received from the power transmitting apparatus via the power receiving antenna before the controlling changes the mode of the electronic apparatus to the second mode, and the controlling does not change the mode of the electronic apparatus to the second mode until the power from the power transmitting apparatus becomes equal to or higher than a second predetermined value, and

wherein the first predetermined value is lower than the second predetermined value.

17. A non-transitory storage medium that stores a program for causing a computer to execute a method, the method comprising:

receiving power from a power transmitting apparatus wirelessly via a power receiving antenna;

connecting an external apparatus different from the power transmitting apparatus and receiving power from the external apparatus; and

controlling that performs determining of whether to change a mode of an electronic apparatus between a first mode and a second mode in a case where the connecting connects the external apparatus,

the first mode being used for performing a predetermined process and a charging process in parallel using the power received from the external apparatus different from the power transmitting apparatus, the second mode used for performing the predetermined process and the charging process in parallel using power received from the power transmitting apparatus,

wherein, the second mode, in a case where the determining performed by the controlling has determined to change the mode of the electronic apparatus to the first mode, the controlling monitors the power being received from the power transmitting apparatus via the power receiving antenna before the changing the mode of the electronic apparatus to the first mode, and the controlling does not change the mode of the electronic apparatus to the first mode until the power from the power transmitting apparatus becomes equal to or lower than a first predetermined value,

wherein, in the first mode, in a case where the determining performed by the controlling has determined to change the mode of the electronic apparatus to the second mode, the controlling monitors the power being received from the power transmitting apparatus via the power receiving antenna before the controlling changes the mode of the electronic apparatus to the second mode, and the controlling does not change the mode of the electronic apparatus to the second mode until the power from the power transmitting apparatus becomes equal to or higher than a second predetermined value, and

wherein the first predetermined value is lower than the second predetermined value.

18. An electronic apparatus comprising:

a power receiving antenna that receives power from a power transmitting apparatus wirelessly;

a connection unit that connects an external apparatus different from the power transmitting apparatus and receives power from the external apparatus; and

a control unit that performs determining of whether to change a mode of the electronic apparatus to one of a plurality of modes including a first mode and a second mode based on a predetermined condition, the first mode used for performing at least one of a predetermined process and a charging process using the power received from the external apparatus, the second mode used for performing at least one of a predetermined process and a charging process using power received from the power transmitting apparatus,

wherein, in the second mode, in a case where the determining performed by the control unit has determined to change the mode of the electronic apparatus to the first mode, the control unit monitors power being received from the power transmitting apparatus via the power receiving antenna before the control unit changes the mode of the electronic apparatus to the first mode, and the control unit does not change the mode of the electronic apparatus to the first mode until the power from the power transmitting apparatus becomes equal to or lower than a first predetermined value,

wherein, in the first mode, in a case where the determining performed by the control unit has determined to change the mode of the electronic apparatus to the second mode, the control unit monitors the power being received from the power transmitting apparatus via the power receiving antenna before the control unit changes the mode of the electronic apparatus to the second mode, and the control unit does not change the mode of the electronic apparatus to the second mode until the power from the power transmitting apparatus becomes equal to or higher than a second predetermined value, and

wherein the first predetermined value is lower than the second predetermined value.