Title:
POSITION RECOGNITION DEVICE
Document Type and Number:
Japanese Patent JPH05316021
Kind Code:
A
Abstract:
PURPOSE: To attain position recognition by means of a radio wave even for a short distance.
CONSTITUTION: A transmitter 1 sends a spread spectrum signal and it is received by plural receivers 2. Then a controller 3 selects a reception output with a highest correlation, then it is discriminated that the transmitter is in existence in the vicinity of the receiver. By which of plural receivers a signal is received is identified by an ID number sent from the receiver.
Inventors:
HISANAGA TETSUO
KAJITA TETSUYA
KATSUMATA ATSUSHI
KAJITA TETSUYA
KATSUMATA ATSUSHI
Application Number:
JP14375092A
Publication Date:
November 26, 1993
Filing Date:
May 11, 1992
Export Citation:
Assignee:
YAMATAKE HONEYWELL CO LTD
International Classes:
G01S11/02; H04B7/26; H04W64/00; G01S5/14; (IPC1-7): H04B7/26; G01S5/14; G01S11/02
Attorney, Agent or Firm:
Masaki Yamakawa