Canon Kabushiki Kaisha

Yutaka Ishinari

Tomoyuki Yagi

Yoshiaki Ishii

Yuki Iwabuchi

Makoto Aoki

Hajime Shimura

Motoki Tagawa

Hiroto Kondo

Kai Suzuki

Tomoyasu Soma

Toshikazu Tamura

Satoru Omura

Tomohisa Ishigami

A control apparatus, that controls a radiation imaging apparatus in a radiation imaging system. where the radiation imaging apparatus includes a plurality of antennas for wireless local area network (LAN) communication used in transmitting a radiation image obtained by radiation imaging, obtains information about the radiation imaging system, determines at least one antenna from among the plurality of antennas as an antenna to be used for the wireless LAN communication based on the obtained information, and transmits information about the antenna to be used to the radiation imaging apparatus.

Control apparatus, radiation imaging apparatus, and radiation imaging system

A radiation imaging system comprising a radiation imaging apparatus configured to detect radiation emitted from a radiation source, an irradiation control apparatus configured to control the radiation source, a communication control apparatus configured to perform communication between the radiation imaging apparatus and the irradiation control apparatus, and a controller, is provided. The radiation imaging apparatus is configured to communicate with the communication control apparatus in accordance with a setting selected from a plurality of settings by the controller. The controller acquires a communication time for a predetermined communication amount between the radiation imaging apparatus and the communication control apparatus, and switches, in accordance with the communication time, the setting for communication of the radiation imaging apparatus with the communication control apparatus from a currently selected setting to another setting among the plurality of settings.

Radiation imaging system, radiation imaging apparatus, control method of radiation imaging system, and non-transitory computer-readable storage medium

A radiation detection apparatus includes a housing that includes an incidence surface and a back surface located on the opposite side of the incidence surface, a sensor panel that is housed in the housing and configured to convert radiation incident from the incidence surface into an electrical signal, a conductive plate that is housed in the housing and extends in a direction intersecting with a normal to the incidence surface, and an antenna element housed in the housing. The conductive plate is located between the sensor panel and the back surface. The antenna element is located between the conductive plate and the back surface. The antenna element includes a portion that extends in the direction intersecting with the normal to the incidence surface. The conductive plate is configured to function as a ground for the antenna element.

Radiation detection apparatus

In a wireless communication apparatus according to the present invention, an antenna including an antenna element is disposed at a position closer to an opening of an outer housing than to a fixing member formed of an electric conductor and configured to fix the antenna, and an electric supply unit configured to supply the antenna with electric power and a first region that is positioned on an electric supply unit side of the antenna element are disposed closer to the fixing member than a second region including an open end portion of the antenna element.

Wireless communication apparatus

A radiation detection apparatus includes a housing having an incident face and a side face, a reflective member accommodated within the housing, the reflective member having a reflective face which reflects radio waves, and an antenna element accommodated within the housing. The side face of the housing includes a conductor region and a transmissive region, the transmissive region having a higher radio wave transmittance than the conductor region. The reflective member is disposed in a position at which a first radio wave, which proceeds directly from the antenna element toward the transmissive region, and a second radio wave, which reaches the reflective face from the antenna element and is reflected toward the transmissive region by the reflective face, strengthen each other.

A radiation imaging apparatus is provided. The radiation imaging apparatus comprises a plurality of pixels used to acquire a radiation image, and a readout circuit configured to read out a signal from each of the plurality of pixels. Correction image data used for performing offset correction is acquired from the plurality of pixels in an acquisition mode associated with an estimated value of the signal and system noise generated when the readout circuit reads out the signal, the estimated value and the system noise being set according to an imaging mode by a user.

Radiation imaging apparatus, radiation imaging system, control method of radiation imaging apparatus, and non-transitory computer-readable storage medium

A radiation imaging apparatus comprising a pixel array and a readout circuit is provided. The readout circuit includes an integrating amplifier configured to read out a signal from the pixel, a sample-and-hold circuit configured to sample an output from the integrating amplifier, and an A/D convertor configured to perform analog/digital conversion on an output from the sample-and-hold circuit and output the converted output. The apparatus performs first control and second control in parallel in an accumulation period for accumulating the signal in the pixel array. In the first control, the A/D convertor performs an analog/digital conversion operation, and in the second control, the integrating amplifier outputs a reference potential and the A/D convertor is electrically connected to a node configured to output the reference potential of the integrating amplifier.

Radiation imaging apparatus, radiation imaging system, method of controlling radiation imaging apparatus, and non-transitory computer-readable storage medium

A radiation imaging apparatus includes a pixel array including n pixel rows, where n&#x2265;3, and a driving circuit configured to scan the pixel array from a first row toward an nrow, counting from one end of the pixel array. In a case where a region of interest is included in a partial region composed of pixel rows from an irow to a jrow, where 1&#x3c;i&#x2264;j&#x3c;n, the driving circuit starts scanning of the pixel array from the first row, and starts scanning of the pixel array from the first row again during scanning of pixel rows from a (j+1)row to the nrow.

Radiation imaging apparatus, control method for the same, and radiation imaging system

A radiation imaging apparatus includes a pixel array arranged with a plurality of pixels including conversion units configured to convert radiation into charges and accumulate the charges, a bias line connected to the conversion units of the plurality of pixels, a bias circuit configured to supply a bias potential to the bias line and detect a current flowing in the bias line, a noise reduction circuit configured to reduce, separately from the bias circuit, noise included in the bias potential from the bias circuit, and a switch configured to connect the noise reduction circuit to the bias line.

Growing community of inventors

Yokohama, Japan

Yutaka Ishinari