Title:
NARROW BAND RADIO INFRA-SIDE ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP3810267
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a narrow band radio infra-side antenna device capable of surely performing a communication with mobile-mounted communication equipment that is the partner of communication with a novel structure.
SOLUTION: The communication equipment mounted on an automobile is located within a prescribed communication area by a directive antenna 101, whereby a radio communication can be performed. The radio state with the mobile-mounted communication equipment that is the partner of communication within the communication area is detected by use of a received field intensity output part 212 and reported by a manager display and operation part 214 and a user display part 216. The direction of the antenna 101 can be changed by motors 206 and 207. The motors 206 and 207 are controlled by a central processing part 205 to change the direction of the antenna 101 so that the radio state with the mobile-mounted communication equipment is satisfactory.
Inventors:
Manabu Matsumoto
Application Number:
JP2000310645A
Publication Date:
August 16, 2006
Filing Date:
October 11, 2000
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G08G1/14; G07B15/00; G08G1/09; H01Q3/02; H04B7/26; H04W4/04; H04W16/28; (IPC1-7): G08G1/09; G07B15/00; H01Q3/02; H04B7/26
Domestic Patent References:
| JP6227899A | ||||
| JP460480A | ||||
| JP896298A | ||||
| JP2000155897A |
Attorney, Agent or Firm:
Hirohiko Usui
Daito Kato
Takashi Ito
Daito Kato
Takashi Ito
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