Denso Corporation

Nippon Soken, Inc.

Nobuhiko Wakayama

Masayuki Imanishi

Yoshimasa Hara

Masami Kataoka

An imaging unit photographs an image of a periphery of the vehicle. An object detection unit obtains image information related to a brightness or a color of the image and position information on the obtained image from the image and detects object from the image information according to a specific feature of the image. A storing unit prestores a vehicle image and history data, which include the image information associated with the position information. A graphic unit overlaps the vehicle image and an image produced according to the history data and converts the overlapped image to be viewed from a predetermined viewpoint. A peripheral image display region indicates a present periphery of the vehicle. A history display region is adjacent to the peripheral image display region for indicating the converted image and the detected object at a position according to the position information.

Vehicle periphery display device and method for vehicle periphery image

A vehicle periphery displaying apparatus for a vehicle is disclosed. The apparatus includes: an imaging device for capturing a periphery image; a storage medium for storing history data comprising one of the periphery image and information on an object-in-periphery, the storage medium pre-storing a vehicle image; a display screen having a real-time displaying part for displaying thereon the periphery image with distortion of the periphery image being uncorrected, and a history displaying part for displaying thereon the vehicle image and a history image being produced based on the history data; and a drawing section configured to superimposingly draw the vehicle image and the history image provided with the distortion that the periphery image has, such that the object-in-periphery shown in the history image is continuously connected to that shown in the periphery image.

Vehicle periphery displaying apparatus

In a control apparatus for a self-heating type cold-cathode discharge tube, a microcomputer determines boosting time based on a detected surrounding temperature of the cold-cathode discharge tube. The boosting time is increases as the detected temperature decreases. A switching circuit, powered from a direct current power supply, performs a switching operation based on a determination output from the microcomputer. An inverter circuit actuates the cold-cathode discharge tube based on the switching operation which is duty-controlled. The duty ratio is determined to be higher when the detected surrounding temperature is within a predetermined low temperature range than outside the predetermined low temperature range.

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Nagoya, Japan

Nobuhiko Wakayama