JPS5690639A - Selection system for radio channel - Google Patents

Selection system for radio channel

Info

Publication number
JPS5690639A
JPS5690639A JP16891779A JP16891779A JPS5690639A JP S5690639 A JPS5690639 A JP S5690639A JP 16891779 A JP16891779 A JP 16891779A JP 16891779 A JP16891779 A JP 16891779A JP S5690639 A JPS5690639 A JP S5690639A
Authority
JP
Japan
Prior art keywords
channel
reception
over
signal
unnecessary
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
JP16891779A
Other languages
Japanese (ja)
Other versions
JPS6322097B2 (en
Inventor
Yoshinushi Takayama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16891779A priority Critical patent/JPS5690639A/en
Publication of JPS5690639A publication Critical patent/JPS5690639A/en
Publication of JPS6322097B2 publication Critical patent/JPS6322097B2/ja
Granted 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Landscapes

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

Abstract

PURPOSE:To make it possible to immediately select the best channel by providing a circuit which detects an ineffective signal unnecessary for an own station over a channel in reception, by switching a reception part over to another channel during this ineffective signal period, and by judging and storing the radio wave reception state. CONSTITUTION:Although reception in waiting mode is generally performed over a channel for incoming control, almost all call signals in received signals are for other stations and unnecessary for the station. Ineffective signal detector 6, when reading and detecting such unnecessary received data, sends the signal to controller 7. On receiving this signal, controller 7 changes the reception channel of reception part 2 over to a calling control channel via control line 9. Radio wave state discrimination part 5 discriminates the intensity of the received radio wave and sends the result to controller 7, which stores it and, when a calling request arrives, uses the said channel immediately.
JP16891779A 1979-12-24 1979-12-24 Selection system for radio channel Granted JPS5690639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16891779A JPS5690639A (en) 1979-12-24 1979-12-24 Selection system for radio channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16891779A JPS5690639A (en) 1979-12-24 1979-12-24 Selection system for radio channel

Publications (2)

Publication Number Publication Date
JPS5690639A true JPS5690639A (en) 1981-07-22
JPS6322097B2 JPS6322097B2 (en) 1988-05-10

Family

ID=15876946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16891779A Granted JPS5690639A (en) 1979-12-24 1979-12-24 Selection system for radio channel

Country Status (1)

Country Link
JP (1) JPS5690639A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03177123A (en) * 1989-12-06 1991-08-01 Sekisui Chem Co Ltd Channel selecting system for radio communication equipment
JPH05153034A (en) * 1991-11-25 1993-06-18 Mitsubishi Electric Corp Cordless telephone set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03177123A (en) * 1989-12-06 1991-08-01 Sekisui Chem Co Ltd Channel selecting system for radio communication equipment
JPH05153034A (en) * 1991-11-25 1993-06-18 Mitsubishi Electric Corp Cordless telephone set

Also Published As

Publication number Publication date
JPS6322097B2 (en) 1988-05-10

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