TW334556B - Position transducer - Google Patents

Position transducer

Info

Publication number
TW334556B
TW334556B TW085114465A TW85114465A TW334556B TW 334556 B TW334556 B TW 334556B TW 085114465 A TW085114465 A TW 085114465A TW 85114465 A TW85114465 A TW 85114465A TW 334556 B TW334556 B TW 334556B
Authority
TW
Taiwan
Prior art keywords
key
position transducer
light beam
shutter plate
elongates
Prior art date
Application number
TW085114465A
Other languages
English (en)
Inventor
Jun Yamamoto
Chikara Sasaki
Original Assignee
Yamaha 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 Yamaha Corp filed Critical Yamaha Corp
Application granted granted Critical
Publication of TW334556B publication Critical patent/TW334556B/zh

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/32—Constructional details
    • G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
    • G10H1/055—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements
    • G10H1/0553—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements using optical or light-responsive means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/32—Constructional details
    • G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
    • G10H1/344—Structural association with individual keys

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Electronic Switches (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
TW085114465A 1995-11-30 1996-11-23 Position transducer TW334556B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31318595A JP3610648B2 (ja) 1995-11-30 1995-11-30 光センサ

Publications (1)

Publication Number Publication Date
TW334556B true TW334556B (en) 1998-06-21

Family

ID=18038130

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085114465A TW334556B (en) 1995-11-30 1996-11-23 Position transducer

Country Status (6)

Country Link
US (1) US5804816A (zh)
JP (1) JP3610648B2 (zh)
KR (1) KR100200563B1 (zh)
CN (1) CN1070607C (zh)
DE (1) DE19649881B4 (zh)
TW (1) TW334556B (zh)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3552374B2 (ja) * 1995-11-30 2004-08-11 ヤマハ株式会社 信号出力装置および光センサ
JP3887968B2 (ja) * 1998-09-18 2007-02-28 ヤマハ株式会社 鍵盤楽器および鍵速度判定装置
JP4221896B2 (ja) 2000-11-30 2009-02-12 ヤマハ株式会社 光ファイバーセンサ
JP3922085B2 (ja) 2002-04-25 2007-05-30 ヤマハ株式会社 光ファイバ束の保持構造
JP3849570B2 (ja) * 2002-04-25 2006-11-22 ヤマハ株式会社 動作検出用部品
US6858835B2 (en) * 2002-05-13 2005-02-22 Federal-Mogul World Wide, Inc. Electronic tilt switch and integrated light module
KR100754169B1 (ko) 2004-11-24 2007-09-03 삼성전자주식회사 측 발광 디바이스 및 이를 광원으로 사용하는 백라이트유닛 및 이를 채용한 액정표시장치
US7825312B2 (en) 2008-02-27 2010-11-02 Steinway Musical Instruments, Inc. Pianos playable in acoustic and silent modes
GB2462081A (en) * 2008-07-21 2010-01-27 Eigenlabs Ltd A programmable sound creation interface
US8148620B2 (en) * 2009-04-24 2012-04-03 Steinway Musical Instruments, Inc. Hammer stoppers and use thereof in pianos playable in acoustic and silent modes
US8541673B2 (en) 2009-04-24 2013-09-24 Steinway Musical Instruments, Inc. Hammer stoppers for pianos having acoustic and silent modes
JP2012167937A (ja) * 2011-02-10 2012-09-06 Cosmo Tec:Kk プリズムを用いたセンサ
FI20135575L (fi) * 2013-05-28 2014-11-29 Aalto Korkeakoulusäätiö Tekniikoita musiikkiesityksen parametrien analysoimiseksi
US20150013525A1 (en) * 2013-07-09 2015-01-15 Miselu Inc. Music User Interface Sensor
TWI663593B (zh) * 2018-07-10 2019-06-21 國立成功大學 光學拾音器以及弦樂轉譜系統
CN111947574A (zh) * 2020-08-07 2020-11-17 珠海格力电器股份有限公司 一种烟灶一体机、位置检测方法及位置检测装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008150A (en) * 1932-03-29 1935-07-16 Arthur S Nelson Control mechanism
US3275831A (en) * 1963-05-16 1966-09-27 Industrial Nucleonics Corp Radiation beam shutter collimator
DE1698013A1 (de) * 1968-01-30 1971-06-16 Zimmer Karl F Einrichtung zur analogen Umwandlung einer mechanischen Verschiebung in eine proportionale Spannung
CH615403A5 (zh) * 1976-12-08 1980-01-31 Saurer Ag Adolph
JPS61139720A (ja) * 1984-12-12 1986-06-27 Hitachi Ltd 光学式センサ
US5001339A (en) * 1989-03-27 1991-03-19 Gulbransen, Inc. Opto-electronic sensing method and device for an acoustic piano
US5231283A (en) * 1989-03-27 1993-07-27 Gulbransen, Inc. Opto-electronic sensing method and device for an acoustic piano
JPH0475096A (ja) * 1990-07-18 1992-03-10 Yamaha Corp 楽器の操作子変位検出装置
JP2617237B2 (ja) * 1990-08-28 1997-06-04 シャープ株式会社 光スポット位置検出装置
US5374775A (en) * 1992-06-09 1994-12-20 Yamaha Corporation Keyboard instrument for selectively producing mechanical sounds and synthetic sounds without any mechanical vibrations on music wires
JPH06138870A (ja) * 1992-10-29 1994-05-20 Kawai Musical Instr Mfg Co Ltd 鍵盤楽器の鍵変位検出装置
JPH06149233A (ja) * 1992-11-05 1994-05-27 Kawai Musical Instr Mfg Co Ltd 鍵盤楽器の鍵変位検出装置の調整方法

Also Published As

Publication number Publication date
JP3610648B2 (ja) 2005-01-19
CN1070607C (zh) 2001-09-05
JPH09152310A (ja) 1997-06-10
KR970029319A (ko) 1997-06-26
US5804816A (en) 1998-09-08
DE19649881B4 (de) 2006-10-12
DE19649881A1 (de) 1997-06-05
KR100200563B1 (ko) 1999-06-15
CN1162111A (zh) 1997-10-15

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees