Title:
MOBILE BODY FINDING DEVICE
Document Type and Number:
Japanese Patent JPH05218952
Kind Code:
A
Abstract:
PURPOSE: To obtain the mobile body finding device by utilizing the spread spectrum communication system.
CONSTITUTION: A reception signal and a reference signal generated by a reference a bar PN code selected based on a control signal from a discrimination control circuit 303 with a selector 301 are given to a correlation device 307. When a correlation output signal is obtained, its detection output is compared with a reference value Er at a comparator 304 and the result of comparison is inputted to the discrimination control circuit 303. The discrimination control circuit 303 sends data with a reference number of the bar PN code and its own receiver number added to them to a monitor room 200.
Inventors:
HAMAO NORIYUKI
AKAZAWA SHIGEO
UCHIDA YOSHITAKA
AKAZAWA SHIGEO
UCHIDA YOSHITAKA
Application Number:
JP5602692A
Publication Date:
August 27, 1993
Filing Date:
February 07, 1992
Export Citation:
Assignee:
CLARION CO LTD
International Classes:
H04J13/00; H04B1/7093; H04B7/26; H04Q9/00; (IPC1-7): H04B7/26; H04J13/00; H04Q9/00
Attorney, Agent or Firm:
Takesaburo Nagata