JPS5460825A - Television picture receiver - Google Patents

Television picture receiver

Info

Publication number
JPS5460825A
JPS5460825A JP12777477A JP12777477A JPS5460825A JP S5460825 A JPS5460825 A JP S5460825A JP 12777477 A JP12777477 A JP 12777477A JP 12777477 A JP12777477 A JP 12777477A JP S5460825 A JPS5460825 A JP S5460825A
Authority
JP
Japan
Prior art keywords
circuit
output
video signal
definition
band
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
JP12777477A
Other languages
Japanese (ja)
Other versions
JPS6122508B2 (en
Inventor
Susumu Yoshida
Yoshio Ishigaki
Kinya Magai
Takahisa Tsuchiya
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP12777477A priority Critical patent/JPS5460825A/en
Publication of JPS5460825A publication Critical patent/JPS5460825A/en
Publication of JPS6122508B2 publication Critical patent/JPS6122508B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Details Of Television Scanning (AREA)

Abstract

PURPOSE: To avoid the deterioration of the phase characteristics even with the band variation of the video signal and thus to improve the definition of the TV picture, by varying the band in accordance with the S/N of the video signal in the definition improving circuit.
CONSTITUTION: Band variation circuit 2 is constituted by secondary differentiating circuit 3 to supply the video signal through input terminal 1 and first level varying means 5 comprising the potentiometer which supplies the output of circuit 3 via differential amplifier circuit 4. Furthermore, the following component parts are added to form definition improving circuit 10: compounder 7 which adds the output of circuit 2 and the output of video signal amplifier circuit 6 together; drimary differentiating circuit 11 to supply the output of compounder 7; and second level varying means 12 to supply the output of circuit 11. Then the output of circuit 10 is supplied to electron beam scanning velocity modulation means G4. Thus, the deterioration of the phase characteristics caused by variations of the band of the video signal can be prevented, improving the definition of the TV picture
COPYRIGHT: (C)1979,JPO&Japio
JP12777477A 1977-10-25 1977-10-25 Television picture receiver Granted JPS5460825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12777477A JPS5460825A (en) 1977-10-25 1977-10-25 Television picture receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12777477A JPS5460825A (en) 1977-10-25 1977-10-25 Television picture receiver

Publications (2)

Publication Number Publication Date
JPS5460825A true JPS5460825A (en) 1979-05-16
JPS6122508B2 JPS6122508B2 (en) 1986-05-31

Family

ID=14968354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12777477A Granted JPS5460825A (en) 1977-10-25 1977-10-25 Television picture receiver

Country Status (1)

Country Link
JP (1) JPS5460825A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10897073B2 (en) 2018-08-27 2021-01-19 Canon Kabushiki Kaisha Receiver for detecting a terahertz wave and image forming apparatus

Also Published As

Publication number Publication date
JPS6122508B2 (en) 1986-05-31

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