DE69430360D1 - Lautstärkeregler - Google Patents

Lautstärkeregler

Info

Publication number
DE69430360D1
DE69430360D1 DE69430360T DE69430360T DE69430360D1 DE 69430360 D1 DE69430360 D1 DE 69430360D1 DE 69430360 T DE69430360 T DE 69430360T DE 69430360 T DE69430360 T DE 69430360T DE 69430360 D1 DE69430360 D1 DE 69430360D1
Authority
DE
Germany
Prior art keywords
volume control
volume
control
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.)
Expired - Fee Related
Application number
DE69430360T
Other languages
English (en)
Other versions
DE69430360T2 (de
Inventor
Reiji Tagomori
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Publication of DE69430360D1 publication Critical patent/DE69430360D1/de
Application granted granted Critical
Publication of DE69430360T2 publication Critical patent/DE69430360T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • H03F3/45098—PI types
    • H03F3/45103—Non-folded cascode stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45311—Indexing scheme relating to differential amplifiers the common gate stage of a cascode dif amp being implemented by multiple transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45398—Indexing scheme relating to differential amplifiers the AAC comprising a voltage generating circuit as bias circuit for the AAC
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)
DE69430360T 1993-12-28 1994-12-28 Lautstärkeregler Expired - Fee Related DE69430360T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5334183A JPH07202599A (ja) 1993-12-28 1993-12-28 音量コントロール回路

Publications (2)

Publication Number Publication Date
DE69430360D1 true DE69430360D1 (de) 2002-05-16
DE69430360T2 DE69430360T2 (de) 2002-08-14

Family

ID=18274472

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69430360T Expired - Fee Related DE69430360T2 (de) 1993-12-28 1994-12-28 Lautstärkeregler

Country Status (5)

Country Link
US (1) US5761321A (de)
EP (1) EP0661804B1 (de)
JP (1) JPH07202599A (de)
KR (1) KR0159309B1 (de)
DE (1) DE69430360T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6317502B1 (en) * 1996-02-29 2001-11-13 Sanyo Electric Co., Ltd. Electronic volume control circuit with controlled output characteristic
DE19909773A1 (de) * 1999-03-05 2000-09-14 Siemens Ag Verstärkerschaltvorrichtung
KR100803412B1 (ko) 2002-10-31 2008-02-13 가시오게산키 가부시키가이샤 표시장치 및 표시장치 구동방법
JP4304585B2 (ja) * 2003-06-30 2009-07-29 カシオ計算機株式会社 電流生成供給回路及びその制御方法並びに該電流生成供給回路を備えた表示装置
JP4103079B2 (ja) 2003-07-16 2008-06-18 カシオ計算機株式会社 電流生成供給回路及びその制御方法並びに電流生成供給回路を備えた表示装置
CN1938953A (zh) * 2004-03-29 2007-03-28 罗姆股份有限公司 D/a转换器电路，有机电致发光驱动电路和有机电致发光显示设备
CN100517961C (zh) * 2004-04-03 2009-07-22 鸿富锦精密工业（深圳）有限公司 音量调整装置及方法
CN100488041C (zh) * 2005-10-26 2009-05-13 仁宝电脑工业股份有限公司 防止输出装置损坏的方法
JP4941426B2 (ja) * 2008-07-24 2012-05-30 カシオ計算機株式会社 表示装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796945A (en) * 1973-05-15 1974-03-12 Beltone Electronics Corp Digital attenuator wherein transistor switch means are biased by rectifier circuit
US4335356A (en) * 1980-01-21 1982-06-15 Tektronix, Inc. Programmable two-quadrant transconductance amplifier
EP0146355B1 (de) * 1983-12-15 1989-06-14 Matsushita Graphic Communication Systems, Inc. Logarithmisch geregelter Verstärker
EP0548479A1 (de) * 1991-12-21 1993-06-30 Hagenuk Gmbh Verstärkerschaltung mit exponentieller Verstärkungssteuerung

Also Published As

Publication number Publication date
EP0661804A3 (de) 1996-07-17
US5761321A (en) 1998-06-02
EP0661804A2 (de) 1995-07-05
EP0661804B1 (de) 2002-04-10
KR0159309B1 (ko) 1999-03-30
KR950022057A (ko) 1995-07-26
JPH07202599A (ja) 1995-08-04
DE69430360T2 (de) 2002-08-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee