Radiation imaging apparatus

• US 7,732,779 B2
• Filed: 09/26/2008
• Issued: 06/08/2010
• Est. Priority Date: 09/27/2007
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Kito, Eiichi, Yoshimi, Takuya, Tanabe, Tsuyoshi, Ohta, Yasunori
• Primary Examiner(s): Hannaher; Constantine
• Application Number:
  US12/232,950
• Publication Number:
  US 20090084964A1
• Time in Patent Office: 620 Days
• Field of Search: 250/370.09
• US Class Current: 250/370.09
• CPC Class Codes: A61B 6/548 Remote control of the apparatus or devices
• CPC Class Codes: G01T 7/00 Details of radiation-measuring instruments

Abstract

A radiation imaging system is equipped with a radiation imaging apparatus and a control apparatus. The radiation imaging apparatus reads out image signals from a radiation detecting section that detects radiation which has passed through a subject, and outputs the read out image signals as wireless signals. The control apparatus outputs predetermined control signals to the radiation imaging apparatus as wireless signals. A second wireless communicating section of the control apparatus decreases the signal strength of communications to be lower during readout of the image signals than at times other than during readout of image signals.

Claims

1. A radiation imaging system, comprising:

a radiation imaging apparatus, comprising;

a radiation detecting section that generates electric charges when irradiated with radiation which has passed through a subject, to record a radiation image of the subject;

a readout section that reads out image signals that represent the radiation image of the subject from the radiation detecting section; and

a first wireless communicating section that reads out the image signals from the readout section and outputs the read out image signals as wireless signals; and

a control apparatus, comprising;

a second wireless communicating section that receives the wireless signals output by the radiation imaging apparatus, and outputs predetermined control signals to the radiation imaging apparatus as wireless signals;

the second wireless communicating section decreasing the signal strength of communications during readout of the image signals by the readout section to be lower than the signal strength of communications at times other than during readout of image signals and maintains communications during the image readout.

2. A radiation imaging system as defined in claim 1, wherein the second wireless communicating section:

sets the signal strength of communications to a degree that enables communication between the radiation imaging apparatus and the control apparatus;

decreases the signal strength of communications in a stepwise manner, to obtain a signal strength at a step which is greater than or equal to a minimum signal strength that enables communications between the radiation imaging apparatus and the control apparatus; and

sets the obtained signal strength as the signal strength of communications during readout of the image signals.

3. A radiation imaging system as defined in claim 1, wherein:

the second wireless communicating section sets the signal strength of communications during readout of the image signals to a degree at which the wireless signals output from the second wireless communicating section do not influence the image signals which are being read out.