JPS5881743U - Autoback space device - Google Patents

Autoback space device

Info

Publication number
JPS5881743U
JPS5881743U JP17598481U JP17598481U JPS5881743U JP S5881743 U JPS5881743 U JP S5881743U JP 17598481 U JP17598481 U JP 17598481U JP 17598481 U JP17598481 U JP 17598481U JP S5881743 U JPS5881743 U JP S5881743U
Authority
JP
Japan
Prior art keywords
capacitor
transistor
current
power supply
supply voltage
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
JP17598481U
Other languages
Japanese (ja)
Other versions
JPH0345284Y2 (en
Inventor
金山　克巳
Original Assignee
オリンパス光学工業株式会社
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 オリンパス光学工業株式会社 filed Critical オリンパス光学工業株式会社
Priority to JP17598481U priority Critical patent/JPS5881743U/en
Priority to US06/443,220 priority patent/US4574321A/en
Publication of JPS5881743U publication Critical patent/JPS5881743U/en
Application granted granted Critical
Publication of JPH0345284Y2 publication Critical patent/JPH0345284Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (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】[Brief explanation of drawings]

図面はこの考案の一実施例を示す回路図である。 Ｐ、　Ｎ・・・母線、Ｒ工〜Ｒ５・・・抵抗、Ｃ１，Ｃ
：、・・・コンデンサ、ＴＲ□〜ＴＲ５・・・トランジ
スタ、ＰＳ・・・再生スイッチ、ＲＥＷＳ・・・テープ
巻戻しスイッチ。The drawing is a circuit diagram showing an embodiment of this invention. P, N... Bus bar, R ~ R5... Resistance, C1, C
:,...Capacitor, TR□~TR5...Transistor, PS...Reproduction switch, REWS...Tape rewind switch.

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）テープ再生を操作する再生操作スイッチと、この
スイッチによるテープ再生停止操作をまって電源電圧に
応じた時定数を有する時定数回路の放電電流又は電源電
圧に無関係な一定の放電電流を発生する手段と、この手
段の放電電流によりオンされるトランジスタと、このト
ランジスタのオン期間充電されるコンデンサと、１対の
トランジスタを有し一方のトランジスタに所定電流が与
えられるとともに他方のトランジスタに上記コンデンサ
が並列接続され上記所定電流に応じて上記コンデンサを
定電流放電させるカレントミラ二回路と、上記コンデン
サの放電電流よりオンされこの間テープ巻戻しを行なう
トランジスタとを具備したことを特徴とするオートバッ
クスペース装置。　　　−(1) A playback operation switch that operates tape playback, and a discharge current of a time constant circuit that has a time constant depending on the power supply voltage or a constant discharge current that is independent of the power supply voltage after waiting for the tape playback stop operation using this switch. a transistor that is turned on by the discharge current of the means, a capacitor that is charged while the transistor is on, and a pair of transistors, one transistor being supplied with a predetermined current and the other transistor being charged with the capacitor. An auto backspace device characterized by comprising two current mirror circuits connected in parallel to discharge the capacitor at a constant current according to the predetermined current, and a transistor that is turned on by the discharge current of the capacitor and performs tape rewinding during this time. . − （２）上記手段は電源電圧に応じた時定数を有する時定
数回路としてコンデンサおよびダイオードを有する回路
を用いたことを特徴とする実用新案登録請求の範囲第１
項記載のオートバックスペース装置。(2) Utility model registration claim 1, characterized in that the above means uses a circuit having a capacitor and a diode as a time constant circuit having a time constant depending on the power supply voltage.
Auto backspace device as described in section. （３）上記手段は電源電圧に無関係な一定の放電流を発
生するものとしてコンデンサとカレントミラー回路を組
合せたものを用いたことを特徴とする実用新案登録請求
の範囲第１項記載のオートバックスペース装置。(3) The autoback space according to claim 1 of the utility model registration claim, wherein the means uses a combination of a capacitor and a current mirror circuit to generate a constant discharge current independent of the power supply voltage. Device.
JP17598481U 1981-11-26 1981-11-26 Autoback space device Granted JPS5881743U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP17598481U JPS5881743U (en) 1981-11-26 1981-11-26 Autoback space device
US06/443,220 US4574321A (en) 1981-11-26 1982-11-22 Automatic backspace device for a tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17598481U JPS5881743U (en) 1981-11-26 1981-11-26 Autoback space device

Publications (2)

Publication Number Publication Date
JPS5881743U true JPS5881743U (en) 1983-06-02
JPH0345284Y2 JPH0345284Y2 (en) 1991-09-25

Family

ID=29968626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17598481U Granted JPS5881743U (en) 1981-11-26 1981-11-26 Autoback space device

Country Status (1)

Country Link
JP (1) JPS5881743U (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939409U (en) * 1972-07-05 1974-04-06
JPS5075612U (en) * 1973-11-14 1975-07-02
JPS5141410U (en) * 1974-09-20 1976-03-27
JPS5281108U (en) * 1975-12-15 1977-06-17
JPS5420117U (en) * 1977-07-12 1979-02-08
JPS5419715U (en) * 1977-07-08 1979-02-08
JPS5427608U (en) * 1977-07-25 1979-02-23

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5141410B2 (en) * 1972-01-11 1976-11-10
JPS5419715B2 (en) * 1972-02-28 1979-07-17
JPS5420117B2 (en) * 1973-09-21 1979-07-20
JPS5332518A (en) * 1976-09-03 1978-03-27 Tokyo Sheet Kk Seat

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939409U (en) * 1972-07-05 1974-04-06
JPS5075612U (en) * 1973-11-14 1975-07-02
JPS5141410U (en) * 1974-09-20 1976-03-27
JPS5281108U (en) * 1975-12-15 1977-06-17
JPS5419715U (en) * 1977-07-08 1979-02-08
JPS5420117U (en) * 1977-07-12 1979-02-08
JPS5427608U (en) * 1977-07-25 1979-02-23

Also Published As

Publication number Publication date
JPH0345284Y2 (en) 1991-09-25

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