Radiation imaging apparatus configured to receive a power in a non-contact manner, radiation imaging system, radiation imaging method, and computer-readable medium

Patent metadata

Field	Value
Publication number	US-11357459-B2
Application number	US-201916601780-A
Country	US
Kind code	B2
Filing date	Oct 15, 2019
Priority date	Apr 19, 2017
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

The radiation imaging apparatus according to the present invention is a radiation imaging apparatus arranged to detect radiation and receive power in a non-contact manner, the radiation imaging apparatus including a control unit configured to stop at least one of the non-contact power reception of and the non-contact power supply to the radiation imaging apparatus depending on the state of the radiation imaging apparatus.

First claim

What is claimed is:

1. A radiation imaging apparatus, which is arranged to detect a radiation and receive a power in a non-contact manner, the radiation imaging apparatus comprising:
a control unit configured to stop at least one of a non-contact power reception of and a non-contact power supply to the radiation imaging apparatus depending on a state of the radiation imaging apparatus in a second period different from a first period during which radiation-based images are acquired.

2. The radiation imaging apparatus according to claim 1 , further comprising:
a first sensor arranged to detect the radiation as electric charges to obtain the radiation-based images; and
a second sensor different from the first sensor,
wherein the control unit is configured to stop at least one of the non-contact power reception and the non-contact power supply depending on a state of the second sensor in the second period as the state of the radiation imaging apparatus in the second period.

3. The radiation imaging apparatus according to claim 2 , wherein the control unit is configured to stop at least one of the non-contact power reception and the non-contact power supply if the radiation imaging apparatus is in a state of reading the electric charges from the first sensor.

4. The radiation imaging apparatus according to claim 3 , wherein the control unit is configured to stop at least one of the non-contact power reception and the non-contact power supply if the first sensor is in a state of being calibrated.

5. The radiation imaging apparatus according to claim 3 , wherein the control unit is configured to transmit, to a power supply arranged to perform the non-contact power supply, information on a state of the first sensor.

6. The radiation imaging apparatus according to claim 2 , wherein the second sensor comprises a sensor for detecting an irradiation of the radiation from a radiation generator arranged to generate the radiation, and the second sensor is not used for generating the radiation-based image, and
wherein the control unit is configured to stop at least one of the non-contact power reception and the non-contact power supply in a response to a transition of the second sensor to a state in which the irradiation of the radiation is detectable.

7. The radiation imaging apparatus according to claim 2 , wherein the second sensor comprises a sensor for detecting a predetermined physical quantity, and
wherein the control unit is configured to stop at least one of the non-contact power reception and the non-contact power supply if the second sensor is in a state in which the predetermined physical quantity is detectable.

8. The radiation imaging apparatus according to claim 2 , wherein the second sensor comprises a sensor for detecting at least one of a temperature, a posture, and an acceleration of the radiation imaging apparatus, and
wherein the control unit is configured to stop at least one of the non-contact power reception and the non-contact power supply if the second sensor is in a state in which at least one of the temperature, the posture, and the acceleration of the radiation imaging apparatus is detectable.

9. The radiation imaging apparatus according to claim 1 , wherein the control unit is configured to stop at least one of the non-contact power reception and the non-contact power supply if the radiation imaging apparatus is in a state of acquiring an image without an irradiation of the radiation from a radiation generator arranged to generate the radiation.

10. The radiation imaging apparatus according to claim 1 , wherein the control unit is configured to transmit, to a power supply arranged to perform the non-contact power supply, information on a start or a stop of the non-contact power supply.

11. The radiation imaging apparatus according to claim 10 , further comprising:
a power receiver configured to start the non-contact power reception by being brought close to the power supply arranged to perform the non-contact power supply,
wherein the power receiver is configured to transmit and receive the information to and from the power supply.

12. The radiation imaging apparatus according to claim 1 , wherein the radiation imaging apparatus is further arranged to receive a power in a contact manner, and
wherein the control unit is configured to receive, from a power supply arranged to perform the non-contact power supply and a contact power supply for the radiation imaging apparatus, information on whether at least one of the non-contact power supply and the contact power supply is performed.

13. The radiation imaging apparatus according to claim 1 , wherein the radiation imaging apparatus is further arranged to receive a power in a contact manner, and
wherein the control unit is configured to stop, if the radiation imaging apparatus is in a state in which a power consumed by the radiation imaging apparatus can be supplied by at least one of the non-contact power reception and a contact power reception, one with a lower power transfer efficiency of the non-contact power reception and the contact power reception.

14. A radiation imaging system comprising:
a plurality of radiation imaging apparatuses arranged to detect a radiation and receive a power in a non-contact manner;
a power supply arranged to perform a non-contact power supply for the plurality of radiation imaging apparatuses; and
a control unit configured to stop at least one of a non-contact power reception of and a non-contact power supply to a few or all of the plurality of radiation imaging apparatuses depending on a state of the plurality of radiation imaging apparatuses in a second period different from a first period during which radiation-based images are acquired by at least one of the plurality of radiation imaging apparatuses.

15. The radiation imaging system according to claim 14 , wherein each radiation imaging apparatus of the plurality of the radiation imaging apparatuses comprises a first sensor arranged to detect the radiation as electric charges and a second sensor different from the first sensor,
wherein the control unit is configured to stop at least one of the non-contact power reception of and the non-contact power supply to the plurality of radiation imaging apparatuses under at least one of the following cases:
if the second sensor is in a state in which an irradiation of radiation from a radiation generator arranged to generate the radiation is detectable, in the second period; and
if the second sensor is in a state in which a predetermined physical quantity in at least one of the plurality of radiation imaging apparatuses is detectable, in the second period.

16. A radiation imaging method of taking a radiation image by a radiation imaging apparatus, which is arranged to take the radiation image, receiving a power in a non-contact manner, the radiation imaging method comprising:
a step of stopping at least one of a non-contact power reception of and a non-contact power supply to the radiation imaging apparatus depending on a state of the radiation imaging apparatus in a second period different from a first period during which radiation-based images are acquired.

17. A non-transitory computer-readable medium having stored thereon a program configured to cause, when executed by a processor, the processor to execute the step of the radiation imaging method of claim 16 .

Assignees

• Canon Kk

Inventors

• Ishioka Toshiya

Classifications

• H04N23/30

  for generating image signals from X-rays · CPC title

• A61B6/4258

  for detecting non x-ray radiation, e.g. gamma radiation (A61B6/037 takes precedence) · CPC title

• A61B6/4266 Primary

  characterised by using a plurality of detector units (A61B6/4014 takes precedence) · CPC title

• G01T1/2992

  Radioisotope data or image processing not related to a particular imaging system; Off-line processing of pictures, e.g. rescanners (for measuring radiation intensity G01T1/1663; digital computing or data processing equipment or methods specially adapted for nuclear physics or nuclear engineering G06F15/00; general purpose image data processing G06T1/00; computerized tomography G06T12/00) · CPC title

• A61B6/42

  Arrangements for detecting radiation specially adapted for radiation diagnosis · CPC title