Hamamatsu Photonics Kabushiki Kaisha

J. Morita Manufacturing Corporation

Yazaki Corporation

Toshitaka Takeguchi

Masakazu Suzuki

Kazuhisa Miyaguchi

Kazunari Matoba

Akifumi Tachibana

Keisuke Mori

Hitoshi Asai

Shozo Ashizawa

Kazuaki Kondo

A vehicle display system comprises a plurality of display units and a controller unit. Each display unit has a receiver for receiving measured data indicating a state of the vehicle, and a driver controller for controlling an indicator driver according to the measured data. The controller unit has a transmitter for transmitting the measured data to the plurality of display units and a transmitter controller for controlling the transmission. Each display unit further comprises a generator for generating response data indicating a state of the indicator driver and a transmitter for transmitting the response data to the controller unit. The controller unit further comprises a receiver for receiving each response data and a comparator for comparing each response data with the measured data to judge whether each indicator driver is controllable or not. Further, the transmitter controller controls according to a judged result.

Vehicle display system

A medical X-ray imaging apparatus is provided, which comprises an X-ray source, an X-ray imaging device for detecting an image of X-rays having passed through a subject and a swivel member for-rotating the X-ray source and the X-ray imaging device around the subject. The X-ray imaging device comprises a CCD sensor for performing the TDI operation and a dosage sensor for detecting X-rays having passed. Dosage signal Y and transfer speed signal X corresponding to the frequency of a false vertical transfer clock are supplied to a divider, and control signal Z is outputted. When control signal Z is supplied to an X-ray control circuit via a delay circuit, the X-ray irradiation dosage of the X-ray source can be feedback-controlled properly.

Medical X-ray imaging apparatus

Images are to be satisfactorily continued even at joints of image regions. The surface of a fluorescent screen on which an X-ray image is to be formed is partitioned in the longitudinal direction of a slit, into image regions. From the image regions, image information is guided to CCD imaging elements by optical fiber bundles. Boundaries of the image regions are formed so as to be inclined with respect to the longitudinal direction of a slit.

Image detecting device and medical X-ray imaging apparatus

The present invention provides an X-ray tomographic imaging apparatus, wherein image degrading components caused by a CCD sensor (3c) or the like are reduced so as to obtain high-quality X-ray images. After tomographic imaging, dark current noise is eliminated by subtracting dark current correction data from a specific line of data among image data stored in an image memory. Next, sensitivity correction coefficients are prepared on the basis of data obtained when an X-ray beam having nearly uniform intensity distribution enters an X-ray imaging device 3. The image data obtained after dark current correction is then multiplied by the sensitivity correction coefficients. As a result, noise due to sensitivity variations or the like can be eliminated.

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Shizuoka, Japan

Toshitaka Takeguchi