JPS642487A - Color television receiver - Google Patents

Color television receiver

Info

Publication number
JPS642487A
JPS642487A JP15845187A JP15845187A JPS642487A JP S642487 A JPS642487 A JP S642487A JP 15845187 A JP15845187 A JP 15845187A JP 15845187 A JP15845187 A JP 15845187A JP S642487 A JPS642487 A JP S642487A
Authority
JP
Japan
Prior art keywords
chrominance
secam
color television
diode
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.)
Granted
Application number
JP15845187A
Other languages
Japanese (ja)
Other versions
JPH0824370B2 (en
JPH012487A (en
Inventor
Shinichi Nakajima
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP62158451A priority Critical patent/JPH0824370B2/en
Publication of JPH012487A publication Critical patent/JPH012487A/en
Publication of JPS642487A publication Critical patent/JPS642487A/en
Publication of JPH0824370B2 publication Critical patent/JPH0824370B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Color Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To trap a SECAM chrominance signal which has two kinds of chrominance subcarrier frequencies effectively over the entire chrominance signal band by using a cascaded circuit of a trap circuit for the PAL system and a trap circuit of frequency lower than the center frequency of a bell filter.
CONSTITUTION: When a SECAM color television signal is selected and received, a voltage V3 which is high enough to a diode D3 through a resistance R3 and also turns on a diode D3 through a diode D4 and a resistance R2 is applied to an input terminal 11 and input terminals 9 and 10 become open. The chrominance signal of the SECAM color television signal outputted from a delay circuit (DL) is trapped as center frequencies of 4.142MHz determined by L3 and C3 and 4.43MHz determined by L2 and C2 and flows to the ground. Consequently, the SECAM chrominance signal which has two kinds of chrominance subcarriers is attenuated effectively.
COPYRIGHT: (C)1989,JPO&Japio
JP62158451A 1987-06-25 1987-06-25 Color television receiver Expired - Lifetime JPH0824370B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62158451A JPH0824370B2 (en) 1987-06-25 1987-06-25 Color television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62158451A JPH0824370B2 (en) 1987-06-25 1987-06-25 Color television receiver

Publications (3)

Publication Number Publication Date
JPH012487A JPH012487A (en) 1989-01-06
JPS642487A true JPS642487A (en) 1989-01-06
JPH0824370B2 JPH0824370B2 (en) 1996-03-06

Family

ID=15672040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62158451A Expired - Lifetime JPH0824370B2 (en) 1987-06-25 1987-06-25 Color television receiver

Country Status (1)

Country Link
JP (1) JPH0824370B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562415A1 (en) * 1992-03-25 1993-09-29 THOMSON multimedia Circuit for switching between PAL and SECAM mode in a television receiver

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185276U (en) * 1981-05-19 1982-11-25
JPS5986986A (en) * 1982-11-11 1984-05-19 Sony Corp Multi-system television set

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185276U (en) * 1981-05-19 1982-11-25
JPS5986986A (en) * 1982-11-11 1984-05-19 Sony Corp Multi-system television set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562415A1 (en) * 1992-03-25 1993-09-29 THOMSON multimedia Circuit for switching between PAL and SECAM mode in a television receiver

Also Published As

Publication number Publication date
JPH0824370B2 (en) 1996-03-06

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