JPS573478A - Equalizing circuit for amplitude distortion - Google Patents

Equalizing circuit for amplitude distortion

Info

Publication number
JPS573478A
JPS573478A JP7806680A JP7806680A JPS573478A JP S573478 A JPS573478 A JP S573478A JP 7806680 A JP7806680 A JP 7806680A JP 7806680 A JP7806680 A JP 7806680A JP S573478 A JPS573478 A JP S573478A
Authority
JP
Japan
Prior art keywords
distortion
amplitude
circuit
amplitude distortion
equalizing circuit
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
JP7806680A
Other languages
Japanese (ja)
Inventor
Hisao Tanaka
Takahiko Yamada
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 JP7806680A priority Critical patent/JPS573478A/en
Publication of JPS573478A publication Critical patent/JPS573478A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE:To obtain a stable TV reception picture, by providing an amplitude limit circuit having the wide dynamic range enclosing amplitude distortion due to selective fading, with an amplitude distortion equalizing circuit receiving a TV video signal of frequency modulated. CONSTITUTION:A TV video signal in frequency modulation is transmitted with an FM spectrum like (a), but if a selective fading like (b) is generated in a radio circuit, it is subjected to a distortion like (c) and a horizontal synchronizing signal is attenuated like a'. The FM input like this is given to an input terminal IN as shown in Block Diagram and inputted to an FM demodulation circuit DEM via an amplitude limit circuit LIM having greater dynamic range and enclosing sufficiently the amplitude distortion. Thus, an FM spectrum is as shown in (a) to accomplish an amplitude distortion equalizing circuit without affected by the synchronizing distortion through the attenuation of a synchronizing signal. Further, the stable television reception picture is obtained, by connecting a low pass filter LPF rejecting the harmonics of the chrominance subcarrier.
JP7806680A 1980-06-09 1980-06-09 Equalizing circuit for amplitude distortion Pending JPS573478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7806680A JPS573478A (en) 1980-06-09 1980-06-09 Equalizing circuit for amplitude distortion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7806680A JPS573478A (en) 1980-06-09 1980-06-09 Equalizing circuit for amplitude distortion

Publications (1)

Publication Number Publication Date
JPS573478A true JPS573478A (en) 1982-01-08

Family

ID=13651464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7806680A Pending JPS573478A (en) 1980-06-09 1980-06-09 Equalizing circuit for amplitude distortion

Country Status (1)

Country Link
JP (1) JPS573478A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6163004A (en) * 1996-08-10 2000-12-19 Yoshitaka Aoyama Method of welding projection nut and apparatus therefor
JP2012020337A (en) * 2010-06-17 2012-02-02 Tokai Seigyo Kk Nut feeder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6163004A (en) * 1996-08-10 2000-12-19 Yoshitaka Aoyama Method of welding projection nut and apparatus therefor
JP2012020337A (en) * 2010-06-17 2012-02-02 Tokai Seigyo Kk Nut feeder

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