JPS5718139A - In-band signal detecting device - Google Patents

In-band signal detecting device

Info

Publication number
JPS5718139A
JPS5718139A JP9347180A JP9347180A JPS5718139A JP S5718139 A JPS5718139 A JP S5718139A JP 9347180 A JP9347180 A JP 9347180A JP 9347180 A JP9347180 A JP 9347180A JP S5718139 A JPS5718139 A JP S5718139A
Authority
JP
Japan
Prior art keywords
band
signal
case
pass filter
amplitude
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
JP9347180A
Other languages
Japanese (ja)
Inventor
Etsuo Sugimoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9347180A priority Critical patent/JPS5718139A/en
Publication of JPS5718139A publication Critical patent/JPS5718139A/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
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Abstract

PURPOSE:To decrease a detection error of an out-band signal, by providing an amplitude limiter on the prestage of a band-pass filter. CONSTITUTION:An in-band signal which has been applled to an input terminal 1 is inputted to a band-pass filter 2 by an amplitude limiter 5, as it is in case when it is smaller than its amplitude limiting value A, and by being limited by this limiting value in case when it is larger. A signal which has passed through the band-pass filter 2 is detected as an insignificant signal in case when it is smaller than a threshold level B of an amplitude detector 3, and as a significant signal in case when it is larger. Accordingly, since a frequency characteristic of a maximum detection sensitivity becomes sharp, a detection error is extremely decreased.
JP9347180A 1980-07-07 1980-07-07 In-band signal detecting device Pending JPS5718139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9347180A JPS5718139A (en) 1980-07-07 1980-07-07 In-band signal detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9347180A JPS5718139A (en) 1980-07-07 1980-07-07 In-band signal detecting device

Publications (1)

Publication Number Publication Date
JPS5718139A true JPS5718139A (en) 1982-01-29

Family

ID=14083247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9347180A Pending JPS5718139A (en) 1980-07-07 1980-07-07 In-band signal detecting device

Country Status (1)

Country Link
JP (1) JPS5718139A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61140847A (en) * 1984-12-14 1986-06-27 Jeol Ltd Electron spin resonance device
US5314756A (en) * 1991-11-27 1994-05-24 Hitachi Metals, Ltd. Permanent magnet of rare-earth-element/transition-metal system having improved corrosion resistance and manufacturing method thereof
US5465047A (en) * 1991-12-06 1995-11-07 Nikkiso Co., Ltd. Electron spin resonator having variable resonance frequency and error detecting automatic frequency control

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61140847A (en) * 1984-12-14 1986-06-27 Jeol Ltd Electron spin resonance device
JPH0527832B2 (en) * 1984-12-14 1993-04-22 Nippon Electron Optics Lab
US5314756A (en) * 1991-11-27 1994-05-24 Hitachi Metals, Ltd. Permanent magnet of rare-earth-element/transition-metal system having improved corrosion resistance and manufacturing method thereof
US5465047A (en) * 1991-12-06 1995-11-07 Nikkiso Co., Ltd. Electron spin resonator having variable resonance frequency and error detecting automatic frequency control

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