JPS55133151A - Mobile radio callout reception system - Google Patents

Mobile radio callout reception system

Info

Publication number
JPS55133151A
JPS55133151A JP4044279A JP4044279A JPS55133151A JP S55133151 A JPS55133151 A JP S55133151A JP 4044279 A JP4044279 A JP 4044279A JP 4044279 A JP4044279 A JP 4044279A JP S55133151 A JPS55133151 A JP S55133151A
Authority
JP
Japan
Prior art keywords
callout
area
signal
mobile radio
reception system
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
JP4044279A
Other languages
Japanese (ja)
Inventor
Hideaki Omori
Kenkichi Hiraide
Takanori Utano
Masayoshi Shintaku
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 JP4044279A priority Critical patent/JPS55133151A/en
Publication of JPS55133151A publication Critical patent/JPS55133151A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Landscapes

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

Abstract

PURPOSE:To simplify the circuit constitution of reception, by providing the filter passing through the frequency of each area parallelly adding signal to the input terminal selectively, and picking up it at the output terminal with synthesis. CONSTITUTION:The RF signal is received at the antenna 7, it passes through the filters 10, 11 corresponding to the area frequency receiving the service and it is inputted to the RF synthesis circuit 12. The output of the synthesis circuit 12 is the IF signal at the mixer 14 and it is fed to the terminal section 6 via the IF filter 15. The frequency of the local oscillator 13 is made to (f1+f2)/2, taking two area frequencies as f1, f2.
JP4044279A 1979-04-04 1979-04-04 Mobile radio callout reception system Pending JPS55133151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4044279A JPS55133151A (en) 1979-04-04 1979-04-04 Mobile radio callout reception system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4044279A JPS55133151A (en) 1979-04-04 1979-04-04 Mobile radio callout reception system

Publications (1)

Publication Number Publication Date
JPS55133151A true JPS55133151A (en) 1980-10-16

Family

ID=12580751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4044279A Pending JPS55133151A (en) 1979-04-04 1979-04-04 Mobile radio callout reception system

Country Status (1)

Country Link
JP (1) JPS55133151A (en)

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