JPS5739633A - Large capacity information transmission system using car telephone system - Google Patents

Large capacity information transmission system using car telephone system

Info

Publication number
JPS5739633A
JPS5739633A JP55115508A JP11550880A JPS5739633A JP S5739633 A JPS5739633 A JP S5739633A JP 55115508 A JP55115508 A JP 55115508A JP 11550880 A JP11550880 A JP 11550880A JP S5739633 A JPS5739633 A JP S5739633A
Authority
JP
Japan
Prior art keywords
station
car
radio
base station
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55115508A
Other languages
Japanese (ja)
Inventor
Hironori Nakahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55115508A priority Critical patent/JPS5739633A/en
Publication of JPS5739633A publication Critical patent/JPS5739633A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To enable information offer service, by transmitting the information from a radio base station with the request from a car station in a spectrum diffusing communication system, and discriminating if it is for the station itself or not with an identification signal in the signal. CONSTITUTION:An identification number indicating a car station 2 and a transmission request signal are transmitted to a radio base station 4 through a radio link 3 by using one of radio channels from the car station 2 in a redio zone 1. The radio base station 4 is connected to a road traffic information data base station 7 via an exclusive line 5 and a radio line controlling station 6. The road traffic information is transmitted in a spectrum diffusing communication system, by reusing the band corresponding almost to the entire radio channels assigned for the transmission from the base to the car stations. The car station 2 receives a spectrum diffusing communication signal in common to discriminate if it is for the station itself from the identification number in the demodulated output.
JP55115508A 1980-08-22 1980-08-22 Large capacity information transmission system using car telephone system Pending JPS5739633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115508A JPS5739633A (en) 1980-08-22 1980-08-22 Large capacity information transmission system using car telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115508A JPS5739633A (en) 1980-08-22 1980-08-22 Large capacity information transmission system using car telephone system

Publications (1)

Publication Number Publication Date
JPS5739633A true JPS5739633A (en) 1982-03-04

Family

ID=14664250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115508A Pending JPS5739633A (en) 1980-08-22 1980-08-22 Large capacity information transmission system using car telephone system

Country Status (1)

Country Link
JP (1) JPS5739633A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213382A (en) * 1983-05-18 1984-12-03 Watanabe Kikai Kogyo Kk Continuous cutter for raw laver
JPS59192681U (en) * 1983-06-09 1984-12-21 株式会社明電舎 Governor device for water turbines
JPH01228445A (en) * 1988-03-10 1989-09-12 Watanabe Kikai Kogyo Kk Washing process for raw algae for laver
JPH04267638A (en) * 1990-11-07 1992-09-24 Hughes Aircraft Co Improved cellular telephone service using diffusion spectral transmission

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213382A (en) * 1983-05-18 1984-12-03 Watanabe Kikai Kogyo Kk Continuous cutter for raw laver
JPS59192681U (en) * 1983-06-09 1984-12-21 株式会社明電舎 Governor device for water turbines
JPH01228445A (en) * 1988-03-10 1989-09-12 Watanabe Kikai Kogyo Kk Washing process for raw algae for laver
JPH0446104B2 (en) * 1988-03-10 1992-07-28 Watanabe Kikai Kogyo Kk
JPH04267638A (en) * 1990-11-07 1992-09-24 Hughes Aircraft Co Improved cellular telephone service using diffusion spectral transmission
JP2530399B2 (en) * 1990-11-07 1996-09-04 ヒューズ・エアクラフト・カンパニー Improved cell phone service using spread spectrum transmission

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