JPS55132149A - Portable type travelling communication system - Google Patents

Portable type travelling communication system

Info

Publication number
JPS55132149A
JPS55132149A JP4011479A JP4011479A JPS55132149A JP S55132149 A JPS55132149 A JP S55132149A JP 4011479 A JP4011479 A JP 4011479A JP 4011479 A JP4011479 A JP 4011479A JP S55132149 A JPS55132149 A JP S55132149A
Authority
JP
Japan
Prior art keywords
circuit
telephone
calling
unit
radio
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.)
Granted
Application number
JP4011479A
Other languages
Japanese (ja)
Other versions
JPS5827702B2 (en
Inventor
Mitsuobi Kamata
Akio Sasaki
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 JP54040114A priority Critical patent/JPS5827702B2/en
Publication of JPS55132149A publication Critical patent/JPS55132149A/en
Publication of JPS5827702B2 publication Critical patent/JPS5827702B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

Landscapes

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

Abstract

PURPOSE:To expand a service area by attaching a radio calling function to a portable radio telephone and by calling a party side by setting a radio calling mode in case of the lowering of an electric field level. CONSTITUTION:In case that when subscriber's telephone 1 on a base station side calls portable mobile station unit 14, a level detected by field detecting circuit 9 in the mobile station is high, operation mode circuit 10 controls mode switching circuit 11 automatically to connect transmitter-receiver 8 to telephone 12, thereby setting a telephone circuit to telephone 1. When the detected level of circuit 9 is intermediate, circuits 10 and 11 sets a radio calling mode to connect transmitter- receiver 8 to radio calling circuit 13, thereby making an answer from unit 14 to the base station automatically. Radio calling control circuit 5 on the base station side requests originating subscriber's exchange 2 to send an originating number and then sends the originating number to unit 14 via mobile communication exchange 3. Receiving this, unit 14 talks over to the calling subscriber via a public station, etc. When the detected level of circuit 9 is low, the system waits for the reception state to recover.
JP54040114A 1979-04-02 1979-04-02 Portable mobile communication system Expired JPS5827702B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54040114A JPS5827702B2 (en) 1979-04-02 1979-04-02 Portable mobile communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54040114A JPS5827702B2 (en) 1979-04-02 1979-04-02 Portable mobile communication system

Publications (2)

Publication Number Publication Date
JPS55132149A true JPS55132149A (en) 1980-10-14
JPS5827702B2 JPS5827702B2 (en) 1983-06-10

Family

ID=12571811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54040114A Expired JPS5827702B2 (en) 1979-04-02 1979-04-02 Portable mobile communication system

Country Status (1)

Country Link
JP (1) JPS5827702B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003032659A1 (en) * 2001-10-05 2003-04-17 Yozan Inc. Mobile communication control apparatus, telephone apparatus and mobile communication terminal apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003032659A1 (en) * 2001-10-05 2003-04-17 Yozan Inc. Mobile communication control apparatus, telephone apparatus and mobile communication terminal apparatus

Also Published As

Publication number Publication date
JPS5827702B2 (en) 1983-06-10

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