JPS6411429A - Interference reduced signal transmission system for mobile communication - Google Patents

Interference reduced signal transmission system for mobile communication

Info

Publication number
JPS6411429A
JPS6411429A JP62165245A JP16524587A JPS6411429A JP S6411429 A JPS6411429 A JP S6411429A JP 62165245 A JP62165245 A JP 62165245A JP 16524587 A JP16524587 A JP 16524587A JP S6411429 A JPS6411429 A JP S6411429A
Authority
JP
Japan
Prior art keywords
signal
detector
sent
deterioration
output
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
JP62165245A
Other languages
Japanese (ja)
Inventor
Seizo Onoe
Mitsuru Murata
Masayuki Sakamoto
Isao Shimizu
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 JP62165245A priority Critical patent/JPS6411429A/en
Priority to US07/169,501 priority patent/US4969207A/en
Priority to EP88302385A priority patent/EP0283299B1/en
Priority to DE3855263T priority patent/DE3855263T2/en
Publication of JPS6411429A publication Critical patent/JPS6411429A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To reduce deterioration due to adjacent channel interference by detecting reception state deterioration and controlling the signal of that time by disconnection, amplitude limitation, or interpolation and also utilizing it for the logic of a selection of a diversity branch. CONSTITUTION:A signal received by a receiver 2 through an antenna 1 is sent to a reception state deterioration detector 7 through a frequency detector 3. The detector 7 detects the deterioration from the absolute value of an FM- demodulated signal as the output of an (a) detector 3 after it passes through a low-pass filter, the electric power of a (b) FM-modulated signal after it passes through a band-pass filter, the absolute value of the time differentiated value of a (c) FM-demodulated signal, or a combination of >=2 of them. The output of is sent to a means 80 which consists of a means 801 for determining a threshold value and a comparator 802 and controls a switch. The output of the means 80 is sent to the switch 4 and when the reception state deteriorates, the current received signal is disconnected to remove interference noises.
JP62165245A 1987-03-20 1987-07-03 Interference reduced signal transmission system for mobile communication Pending JPS6411429A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62165245A JPS6411429A (en) 1987-07-03 1987-07-03 Interference reduced signal transmission system for mobile communication
US07/169,501 US4969207A (en) 1987-03-20 1988-03-17 Radio receiver with reception deterioration compensation
EP88302385A EP0283299B1 (en) 1987-03-20 1988-03-18 Radio receiver
DE3855263T DE3855263T2 (en) 1987-03-20 1988-03-18 Radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62165245A JPS6411429A (en) 1987-07-03 1987-07-03 Interference reduced signal transmission system for mobile communication

Publications (1)

Publication Number Publication Date
JPS6411429A true JPS6411429A (en) 1989-01-17

Family

ID=15808634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62165245A Pending JPS6411429A (en) 1987-03-20 1987-07-03 Interference reduced signal transmission system for mobile communication

Country Status (1)

Country Link
JP (1) JPS6411429A (en)

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