JPS60192578U - Subcarrier automatic switching circuit - Google Patents

Subcarrier automatic switching circuit

Info

Publication number
JPS60192578U
JPS60192578U JP8127584U JP8127584U JPS60192578U JP S60192578 U JPS60192578 U JP S60192578U JP 8127584 U JP8127584 U JP 8127584U JP 8127584 U JP8127584 U JP 8127584U JP S60192578 U JPS60192578 U JP S60192578U
Authority
JP
Japan
Prior art keywords
phase
vco
low
subcarrier
switching 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
JP8127584U
Other languages
Japanese (ja)
Other versions
JPH0336148Y2 (en
Inventor
富夫 加藤
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Priority to JP8127584U priority Critical patent/JPS60192578U/en
Priority to US06/735,048 priority patent/US4688082A/en
Priority to AU42601/85A priority patent/AU568208B2/en
Priority to EP85106206A priority patent/EP0162443B1/en
Priority to DE8585106206T priority patent/DE3584851D1/en
Priority to CA000482033A priority patent/CA1252880A/en
Priority to PH32301A priority patent/PH23137A/en
Priority to BR8502420A priority patent/BR8502420A/en
Priority to ES85543442A priority patent/ES8702761A1/en
Priority to EG314/85A priority patent/EG17278A/en
Publication of JPS60192578U publication Critical patent/JPS60192578U/en
Priority to CA000581789A priority patent/CA1262281A/en
Application granted granted Critical
Publication of JPH0336148Y2 publication Critical patent/JPH0336148Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の副搬送波自動切換回路の１実施例のブ
ロック線図、第２図は本考案番゛こ係るローパスフィル
タの他の実施例の回路図、第３図は従来の副搬送波自動
切換回路のブロック線図である。 ゛　　１・・・パーストゲート回路、２・・・ＡＰＣ用
位相検波器、３・・釦−パスフィルタ、４・・・■Ｃ０
１５ａｔ５ｂ・・・水晶振動子、６・・・スイッチング
回路、７・・・キラー用位相検波器、８・」・フリップ
フロップ回路、１３・・・スイッチング素子、１５・・
・チャンネル切換パルス発生器。FIG. 1 is a block diagram of one embodiment of the subcarrier automatic switching circuit of the present invention, FIG. 2 is a circuit diagram of another embodiment of the low-pass filter of the present invention, and FIG. 3 is a block diagram of a conventional subcarrier automatic switching circuit. FIG. 3 is a block diagram of an automatic switching circuit.゛ 1... Burst gate circuit, 2... Phase detector for APC, 3... Button-pass filter, 4... ■C0
15at5b...Crystal resonator, 6...Switching circuit, 7...Killer phase detector, 8...Flip-flop circuit, 13...Switching element, 15...
・Channel switching pulse generator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＰＡＬ方式またはＮＴＳＣ方式等受信方式に応じて異な
る発振周波数を適宜切換えて発振する電圧制御型発振器
（ＶＣＯ）と、前記ＶＣＯの発振位相とバースト信号の
位相とを位相検波する位相検波器と、前記検波器の検波
出力の低域成分を濾波してＶＣＯに供給するローパスフ
ィルタとから形成されるＡＰＣループを備えた多方式カ
ラーテレビ受信機にお、いて、前記ＡＰＣルニプのロー
パスフィルタ内に時定数切換手段を設け、受信チャンネ
ルを切換えるごとに一時的に時定数を短縮するようにし
たことを特徴とする副搬送波自動切換回路。a voltage-controlled oscillator (VCO) that oscillates by appropriately switching different oscillation frequencies depending on a receiving system such as a PAL system or an NTSC system; a phase detector that performs phase detection between the oscillation phase of the VCO and the phase of the burst signal; In a multi-system color television receiver equipped with an APC loop formed from a low-pass filter that filters the low-frequency component of the detection output of the detector and supplies it to the VCO, a time constant is included in the low-pass filter of the APC loop. An automatic subcarrier switching circuit characterized in that a switching means is provided to temporarily shorten a time constant each time a reception channel is switched.
JP8127584U 1984-05-23 1984-05-30 Subcarrier automatic switching circuit Granted JPS60192578U (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP8127584U JPS60192578U (en) 1984-05-30 1984-05-30 Subcarrier automatic switching circuit
US06/735,048 US4688082A (en) 1984-05-23 1985-05-16 Multi-system television receiver
AU42601/85A AU568208B2 (en) 1984-05-23 1985-05-17 Multi-standard colour television receiver subcarrier generation
DE8585106206T DE3584851D1 (en) 1984-05-23 1985-05-21 MULTI-SYSTEM TELEVISION RECEIVER.
EP85106206A EP0162443B1 (en) 1984-05-23 1985-05-21 Multi-system television receiver
PH32301A PH23137A (en) 1984-05-23 1985-05-22 Multi-system television receiver
CA000482033A CA1252880A (en) 1984-05-23 1985-05-22 Multi-system television receiver
BR8502420A BR8502420A (en) 1984-05-23 1985-05-22 MULTI-SYSTEM TELEVISION RECEIVER
ES85543442A ES8702761A1 (en) 1984-05-23 1985-05-23 Multi-system television receiver.
EG314/85A EG17278A (en) 1984-05-23 1985-05-23 A subcarriee generation circuit
CA000581789A CA1262281A (en) 1984-05-23 1988-10-31 Multi-system television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8127584U JPS60192578U (en) 1984-05-30 1984-05-30 Subcarrier automatic switching circuit

Publications (2)

Publication Number Publication Date
JPS60192578U true JPS60192578U (en) 1985-12-20
JPH0336148Y2 JPH0336148Y2 (en) 1991-07-31

Family

ID=30627908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8127584U Granted JPS60192578U (en) 1984-05-23 1984-05-30 Subcarrier automatic switching circuit

Country Status (1)

Country Link
JP (1) JPS60192578U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313862A (en) * 1976-07-23 1978-02-07 Hitachi Ltd Phase drawn oscillator
JPS58152070U (en) * 1982-04-07 1983-10-12 シャープ株式会社 Subcarrier automatic switching circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313862A (en) * 1976-07-23 1978-02-07 Hitachi Ltd Phase drawn oscillator
JPS58152070U (en) * 1982-04-07 1983-10-12 シャープ株式会社 Subcarrier automatic switching circuit

Also Published As

Publication number Publication date
JPH0336148Y2 (en) 1991-07-31

Similar Documents

Publication Publication Date Title
CA1217855A (en) Apparatus for recording a color video signal
US4295157A (en) Signal generating circuit in a color television system
JPS60192578U (en) Subcarrier automatic switching circuit
US5083213A (en) Chrominance signal processing circuit and video tape recorder having function of processing chrominance signal
JPS60189187U (en) Subcarrier automatic switching circuit
US4613828A (en) Injection-locked video frequency oscillator
JPS60177569U (en) Clock signal generation circuit for digital television receivers
JPS6114578U (en) color synchronization circuit
JPS6151832B2 (en)
JPS58152070U (en) Subcarrier automatic switching circuit
JPH073740Y2 (en) Carrier color signal converter
JP2856394B2 (en) Synchronous signal generation circuit
JPS6374391A (en) Color video signal recording device
JPS5930388A (en) Multi-purpose color television receiver
JPS60121383U (en) SECAM TV camera
JPS6090925U (en) comb filter
JPH0326088A (en) Magnetic recording and reproducing device
JPS60172480U (en) PAL color signal processing device
JPH05183922A (en) Sub carrier regenerating circuit
JPS60103949U (en) frequency synthesizer
JPS59195883U (en) RF converter color subcarrier oscillation circuit
JPS59193063U (en) Horizontal AFC circuit of television receiver
JPH0451794A (en) Chroma signal processing circuit in video movie
JPS58152035U (en) phase locked loop
JPH0560719B2 (en)