NONCONTACT SHORT DISTANCE COMMUNICATION SYSTEM FOR SLIDING DOOR

WIPO Patent Application WO/2004/035355

A1

A noncontact short distance communication system for sliding door, performing bi-directional data communication well between the car body side and the sliding door side through electromagnetic induction coupling, transmits/receives data between a first communication unit (31) connected with a first antenna member (17) and a second communication unit (41) connected with a second antenna member (18) through electromagnetic induction coupling of the first and second antenna members (17, 18). The first and second communication units (31, 41) comprise, respectively, microcomputers (34, 44), and data communication circuits (33, 43) performing half-duplex bi-directional communication, wherein the data communication circuits (33, 43) comprise, respectively, transmitting sections (33A, 43A) receiving clock pulses from the microcomputers (34, 44) and transmitting waves subjected to on-off modulation by data of serial communication format using the clock pulse as a base signal through the antenna members (17, 18), and receiving sections (33B, 43B) for acquiring the data by receiving and demodulating the modulated wave.

UEHARA TAKEHIKO (JP)

PCT/JP2003/012415

April 29, 2004

September 29, 2003

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YAZAKI CORP (JP)
UEHARA TAKEHIKO (JP)

E05F15/14; B60J5/06; B60R16/02; B60R16/027; H04L5/16; H04L25/49; (IPC1-7): B60R16/02; B60J5/06; H04L25/49

WO2001025056A1

2001-04-12

JPH0214920A

1990-01-18

Takino, Hideo (Hiroo SK Bldg. 36-13, Ebisu 2-chom, Shibuya-ku Tokyo, JP)

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