| US 7,593,507 B2 | ||
| Radiation image capturing system and method of setting minimum transmission radio-field intensity in such radiation image capturing system | ||
| Yasunori Ohta, Kanagawa (Japan); Eiichi Kito, Kanagawa (Japan); Tsuyoshi Tanabe, Kanagawa (Japan); and Takuya Yoshimi, Kanagawa (Japan) | ||
| Assigned to Fujifilm Corporation, Tokyo (Japan) | ||
| Filed on Aug. 18, 2008, as Appl. No. 12/222,849. | ||
| Claims priority of application No. 2007-212241 (JP), filed on Aug. 16, 2007; and application No. 2008-175696 (JP), filed on Jul. 04, 2008. | ||
| Prior Publication US 2009/0046834 A1, Feb. 19, 2009 | ||
| Int. Cl. H05G 1/64 (2006.01); H05G 1/70 (2006.01); G01D 18/00 (2006.01) | ||
| U.S. Cl. 378—98.8 [378/91; 378/207] | 10 Claims |
| 1. A radiation image capturing system comprising:
a cassette having a radiation detector for detecting a radiation that has passed through a subject and converting the detected
radiation into radiation image information, an image memory for storing the converted radiation image information, a first
transceiver for transmitting the radiation image information stored in said image memory to an external controller by way
of wireless communications at a transmission radio-field intensity based on a command radio wave from the external controller,
and a battery for supplying electric power to said radiation detector and the first transceiver; and
the external controller having a second transceiver for transmitting said command radio wave and receiving the radiation image
information transmitted from said cassette;
wherein when said first transceiver of the cassette starts to transmit the radiation image information to said second transceiver
of the external controller, said first transceiver transmits a test radio wave, and said second transceiver calculates a minimum
transmission radio-field intensity of said first transceiver which is required to receive the radiation image information,
from a received intensity of said test radio wave, and transmits the command radio wave representing a command indicative
of the calculated minimum transmission radio-field intensity to said first transceiver.
|