JPS5656074A - Color television receiver - Google Patents

Color television receiver

Info

Publication number
JPS5656074A
JPS5656074A JP13391779A JP13391779A JPS5656074A JP S5656074 A JPS5656074 A JP S5656074A JP 13391779 A JP13391779 A JP 13391779A JP 13391779 A JP13391779 A JP 13391779A JP S5656074 A JPS5656074 A JP S5656074A
Authority
JP
Japan
Prior art keywords
voltage
connection point
clamped
signal line
flowed
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
JP13391779A
Other languages
Japanese (ja)
Other versions
JPS6113665B2 (en
Inventor
Katsuyuki Akimoto
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 JP13391779A priority Critical patent/JPS5656074A/en
Publication of JPS5656074A publication Critical patent/JPS5656074A/en
Publication of JPS6113665B2 publication Critical patent/JPS6113665B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Landscapes

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

Abstract

PURPOSE:To enable recover automatic tuning immediately even the receiver is in a normal reception mode by holding a defeat voltage and error voltage in the same states as a normal tuning state by providing a clamper circuit. CONSTITUTION:While clamper circuit 100 is in operation, the upper limit of the voltage of signal line 9 is clamped to the voltage of connection point 13 and when it increases more, electric current is flowed through transistor TR113 to decrease it down to the voltage of connection point 13; and the lower limit of the voltage of signal line 9 is clamped to the voltage of connection point 12 and when it decreases more, electric current is flowed to diode 115 to increase it up to the voltage of connection point 12. Further, the voltage of signal line 8 is clamped lower than the voltage of connection point 14 and when it increases higher, electric current is flowed to TR114 to decrease it down to the voltage of connection point 14. This low voltage is equivalent to a voltage showing the existence of a synchronizing signal in detecting circuit 6 and even if a defeat voltage showing the nonexistence of the synchronizing signal is outputted from circuit 6, the upper limit of the voltage of signal line 8 is clamped to the voltage of connection point 14.
JP13391779A 1979-10-13 1979-10-13 Color television receiver Granted JPS5656074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13391779A JPS5656074A (en) 1979-10-13 1979-10-13 Color television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13391779A JPS5656074A (en) 1979-10-13 1979-10-13 Color television receiver

Publications (2)

Publication Number Publication Date
JPS5656074A true JPS5656074A (en) 1981-05-16
JPS6113665B2 JPS6113665B2 (en) 1986-04-15

Family

ID=15116101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13391779A Granted JPS5656074A (en) 1979-10-13 1979-10-13 Color television receiver

Country Status (1)

Country Link
JP (1) JPS5656074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178678A (en) * 1982-04-13 1983-10-19 Sony Corp Television set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178678A (en) * 1982-04-13 1983-10-19 Sony Corp Television set

Also Published As

Publication number Publication date
JPS6113665B2 (en) 1986-04-15

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