Title:
IMAGE TRANSMISSION DEVICE FOR TRAIN
Document Type and Number:
Japanese Patent JP3712954
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily transmit an image to the train side without requiring a precise adjustment of the optical axis, and without being influence by a curved shape of a platform.
SOLUTION: Telecameras 11a to 11c are installed on the platform 1 of a station, and photograph the platform 1, a front part, a central part, and a rear part of a train 2. A picture signal photographed by the telecameras 11a to 11c is modulated by FM, and is synthesized as a signal of 3 CH, and is inputted to an LED driving device 13. While, the LED driving device 13 is arranged in the forefront part of a platform fence 14, and an LED light transmitter 15 is arranged horizontally long on the side opposed the train 2. A light receiving part 16 arranged outside the forefront part of the train 2 so as to be opposed to a central part of the LED light transmitter 15 when the train 2 stops in a specified position of the platform 1. A light signal from the LED light transmitter 15 is received by the light receiving part 16, and is converted into a high frequency signal. The picture signal of three channels is demodulated by a demodulating circuit, and is displayed on a triple LCD monitor device 18 arranged in a driver's seat of the train 2.
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Inventors:
Ueno Katsuya
Katsuya Antori
Kaoru Suda
Toru Emata
Katsuya Antori
Kaoru Suda
Toru Emata
Application Number:
JP2001115686A
Publication Date:
November 02, 2005
Filing Date:
April 13, 2001
Export Citation:
Assignee:
Yagi Antenna Co., Ltd.
International Classes:
B61B1/02; B61L3/12; B61L15/00; B61L23/00; B61L23/04; H04B10/11; H04B10/114; H04N7/18; (IPC1-7): B61L23/00; H04B10/10; H04B10/105; H04B10/22; H04N7/18
Domestic Patent References:
| JP2068267A | ||||
| JP7069215A | ||||
| JP9175395A | ||||
| JP9188248A | ||||
| JP9214432A | ||||
| JP10079706A | ||||
| JP11331814A | ||||
| JP2000091647A | ||||
| JP2001168803A |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto