JPS6135442U - Waveform shaping circuit - Google Patents

Waveform shaping circuit

Info

Publication number
JPS6135442U
JPS6135442U JP11813484U JP11813484U JPS6135442U JP S6135442 U JPS6135442 U JP S6135442U JP 11813484 U JP11813484 U JP 11813484U JP 11813484 U JP11813484 U JP 11813484U JP S6135442 U JPS6135442 U JP S6135442U
Authority
JP
Japan
Prior art keywords
signal
analog signal
waveform shaping
shaping circuit
rectangular wave
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
JP11813484U
Other languages
Japanese (ja)
Other versions
JPH0611653Y2 (en
Inventor
又泰 久保
Original Assignee
ソニー株式会社
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 ソニー株式会社 filed Critical ソニー株式会社
Priority to JP1984118134U priority Critical patent/JPH0611653Y2/en
Publication of JPS6135442U publication Critical patent/JPS6135442U/en
Application granted granted Critical
Publication of JPH0611653Y2 publication Critical patent/JPH0611653Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Manipulation Of Pulses (AREA)

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】 第１図は本考案Ｊコ係る波形整形回路の一例をそれが適
用された光学式ディスクプレーヤの一部とともに示す構
成図、第２区Ａ−Ｆは第１図に示される例の動作説明に
供される波形図、第３図は本考案に係る波形整形回路の
他の例のー・部を示す構成図、第４図Ａ〜Ｄは波形整形
動作の説明に供される波形区である。 図中、２１は入力端子、４及ひ８はレベル比較回路、５
は振幅制限増幅回路、７はエンヘロープ検出回路、２ｔ
及び２ｔ’は出力端子、２０はスイッチである。[Brief Description of the Drawings] Fig. 1 is a configuration diagram showing an example of the waveform shaping circuit according to the present invention together with a part of an optical disc player to which it is applied. A waveform diagram for explaining the operation of the illustrated example, FIG. 3 is a configuration diagram showing a part of another example of the waveform shaping circuit according to the present invention, and FIGS. This is the waveform area provided. In the figure, 21 is an input terminal, 4 and 8 are level comparison circuits, and 5
is an amplitude limiting amplifier circuit, 7 is an envelope detection circuit, 2t
and 2t' are output terminals, and 20 is a switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アナログ信号が供給され、該アナログ信号のレベル左所
定レベルとの比較を行って、上記アナログ信号のレベル
変化に応じた矩形波信号を導出する矩形波信号形成部と
、上記アナログ信号の有無を検出する信号有無検出部と
を備え、上記信号有無検出部により上記アナログ信号が
無いことが検出されるとき、上記矩形波信号形成部から
信号出力が得られないようにされた波形整形回路。A rectangular wave signal forming unit that is supplied with an analog signal, compares the level of the analog signal with a predetermined left level, and derives a rectangular wave signal according to a level change of the analog signal, and detects the presence or absence of the analog signal. a signal presence/absence detection section, wherein when the signal presence/absence detection section detects that the analog signal is absent, no signal output is obtained from the rectangular wave signal forming section.
JP1984118134U 1984-07-31 1984-07-31 Wave shaping circuit Expired - Lifetime JPH0611653Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984118134U JPH0611653Y2 (en) 1984-07-31 1984-07-31 Wave shaping circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984118134U JPH0611653Y2 (en) 1984-07-31 1984-07-31 Wave shaping circuit

Publications (2)

Publication Number Publication Date
JPS6135442U true JPS6135442U (en) 1986-03-04
JPH0611653Y2 JPH0611653Y2 (en) 1994-03-23

Family

ID=30677026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984118134U Expired - Lifetime JPH0611653Y2 (en) 1984-07-31 1984-07-31 Wave shaping circuit

Country Status (1)

Country Link
JP (1) JPH0611653Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63131374A (en) * 1986-11-20 1988-06-03 Ricoh Co Ltd Information recording and reproducing device
JPS63269379A (en) * 1987-04-28 1988-11-07 Sony Corp Demodulation circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134595A (en) * 1975-05-16 1976-11-22 Mitsubishi Electric Corp Phase-detection control system
JPS5314447A (en) * 1976-07-26 1978-02-09 Mitsubishi Electric Corp Refrigerating device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134595A (en) * 1975-05-16 1976-11-22 Mitsubishi Electric Corp Phase-detection control system
JPS5314447A (en) * 1976-07-26 1978-02-09 Mitsubishi Electric Corp Refrigerating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63131374A (en) * 1986-11-20 1988-06-03 Ricoh Co Ltd Information recording and reproducing device
JPS63269379A (en) * 1987-04-28 1988-11-07 Sony Corp Demodulation circuit

Also Published As

Publication number Publication date
JPH0611653Y2 (en) 1994-03-23

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