JPS59195820U - volume control device - Google Patents

volume control device

Info

Publication number
JPS59195820U
JPS59195820U JP8854483U JP8854483U JPS59195820U JP S59195820 U JPS59195820 U JP S59195820U JP 8854483 U JP8854483 U JP 8854483U JP 8854483 U JP8854483 U JP 8854483U JP S59195820 U JPS59195820 U JP S59195820U
Authority
JP
Japan
Prior art keywords
control device
voltage
volume control
generating means
volume
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.)
Pending
Application number
JP8854483U
Other languages
Japanese (ja)
Inventor
樋山　克
Original Assignee
株式会社ケンウッド
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 株式会社ケンウッド filed Critical 株式会社ケンウッド
Priority to JP8854483U priority Critical patent/JPS59195820U/en
Publication of JPS59195820U publication Critical patent/JPS59195820U/en
Pending legal-status Critical Current

Links

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Control Of Amplification And Gain Control (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 the drawing]

第１図ａおよびｂは本考案の一実施例の構成を示す回路
図である。第２図は本考案の他の実施例の構成を示すブ
ロック図。第３図は本考案の他の実施例の作用を説明す
る特性図。 １・・・デジタル音声信号データ発生源、２・・・Ｄ／
Ａ変換器、３・・・ローパスフィルタ、４・・・時定数
回路、７・・・基準電圧源、８・・・スイッチ予設、１
０・・・トランジスタ、１２・・・ツェナーダイオード
、１５・・・電圧設定回路、１６・・・クロックパルス
発振器、１７および２０・・・分周器、１８・・・時間
選択スイッチ、２２・・・カウンタ、２３・・・スイッ
チ、２７・・・計時手段、２８・・・Ｄ／Ａ変換器、２
９・・・ローパスフィルタ、３０・・・対数変換器、３
１・・・オフセット電源、３２・・・オフセット付加回
路。 −ｚｏｄｓ　ｌ ｕ　　　　　　　　ｍ′ スFIGS. 1a and 1b are circuit diagrams showing the structure of an embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of another embodiment of the present invention. FIG. 3 is a characteristic diagram illustrating the operation of another embodiment of the present invention. 1... Digital audio signal data generation source, 2... D/
A converter, 3...Low pass filter, 4...Time constant circuit, 7...Reference voltage source, 8...Switch pre-installation, 1
0... Transistor, 12... Zener diode, 15... Voltage setting circuit, 16... Clock pulse oscillator, 17 and 20... Frequency divider, 18... Time selection switch, 22... - Counter, 23... Switch, 27... Timing means, 28... D/A converter, 2
9...Low pass filter, 30...Logarithmic converter, 3
1...Offset power supply, 32...Offset addition circuit. -zods l u m'

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 経時的に変化する電圧を発生する電圧発生手段を備えて
、音量制御のときに前記電圧発生手段からの出力電圧を
、デジタル信号処理がなされる音響機器の信号経路中に
おけるデジタル／アナログ変換器の基準電圧端子に供給
するようにしてなることを特徴とする音量制御装置。A voltage generating means that generates a voltage that changes over time is provided, and when controlling the volume, the output voltage from the voltage generating means is applied to a digital/analog converter in a signal path of an audio equipment where digital signal processing is performed. A volume control device characterized in that the volume control device supplies a voltage to a reference voltage terminal.
JP8854483U 1983-06-11 1983-06-11 volume control device Pending JPS59195820U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8854483U JPS59195820U (en) 1983-06-11 1983-06-11 volume control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8854483U JPS59195820U (en) 1983-06-11 1983-06-11 volume control device

Publications (1)

Publication Number Publication Date
JPS59195820U true JPS59195820U (en) 1984-12-26

Family

ID=30218451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8854483U Pending JPS59195820U (en) 1983-06-11 1983-06-11 volume control device

Country Status (1)

Country Link
JP (1) JPS59195820U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009055744A (en) * 2007-08-28 2009-03-12 Olympus Corp Ultrasonic motor drive circuit and driving signal generating method of ultrasonic motor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839506A (en) * 1971-09-16 1973-06-11
JPS4945612A (en) * 1972-09-04 1974-05-01
JPS52140259A (en) * 1976-05-17 1977-11-22 Hasler Ag Segment digitalltooanalog converter
JPS54108510A (en) * 1978-02-14 1979-08-25 Sharp Corp Receiver with volume presetter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839506A (en) * 1971-09-16 1973-06-11
JPS4945612A (en) * 1972-09-04 1974-05-01
JPS52140259A (en) * 1976-05-17 1977-11-22 Hasler Ag Segment digitalltooanalog converter
JPS54108510A (en) * 1978-02-14 1979-08-25 Sharp Corp Receiver with volume presetter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009055744A (en) * 2007-08-28 2009-03-12 Olympus Corp Ultrasonic motor drive circuit and driving signal generating method of ultrasonic motor

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