GB0107749D0 - Piezoelectric diaphragm and piezoelectric speaker - Google Patents

Piezoelectric diaphragm and piezoelectric speaker

Info

Publication number
GB0107749D0
GB0107749D0 GBGB0107749.4A GB0107749A GB0107749D0 GB 0107749 D0 GB0107749 D0 GB 0107749D0 GB 0107749 A GB0107749 A GB 0107749A GB 0107749 D0 GB0107749 D0 GB 0107749D0
Authority
GB
United Kingdom
Prior art keywords
piezoelectric
diaphragm
speaker
piezoelectric speaker
piezoelectric diaphragm
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
GBGB0107749.4A
Other versions
GB2358546B (en
GB2358546A (en
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.)
NEC Corp
Original Assignee
NEC 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
Priority claimed from JP33841898A external-priority patent/JP3597061B2/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB0107749D0 publication Critical patent/GB0107749D0/en
Publication of GB2358546A publication Critical patent/GB2358546A/en
Application granted granted Critical
Publication of GB2358546B publication Critical patent/GB2358546B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0688—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction with foil-type piezoelectric elements, e.g. PVDF
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/642—Disposition of sound reproducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
GB0107749A 1998-11-13 1999-11-12 Piezoelectric diaphragm and piezoelectric speaker Expired - Lifetime GB2358546B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33841898A JP3597061B2 (en) 1998-11-13 1998-11-13 Piezo speaker
GB9926907A GB2343811A (en) 1998-11-13 1999-11-12 Transparent piezoelectric speaker in a display device

Publications (3)

Publication Number Publication Date
GB0107749D0 true GB0107749D0 (en) 2001-05-16
GB2358546A GB2358546A (en) 2001-07-25
GB2358546B GB2358546B (en) 2002-01-23

Family

ID=26316079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0107749A Expired - Lifetime GB2358546B (en) 1998-11-13 1999-11-12 Piezoelectric diaphragm and piezoelectric speaker

Country Status (1)

Country Link
GB (1) GB2358546B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6661161B1 (en) * 2002-06-27 2003-12-09 Andromed Inc. Piezoelectric biological sound monitor with printed circuit board
CA2464029A1 (en) 2004-04-08 2005-10-08 Valery Telfort Non-invasive ventilation monitor
US9107625B2 (en) 2008-05-05 2015-08-18 Masimo Corporation Pulse oximetry system with electrical decoupling circuitry
US8771204B2 (en) 2008-12-30 2014-07-08 Masimo Corporation Acoustic sensor assembly
US8715206B2 (en) 2009-10-15 2014-05-06 Masimo Corporation Acoustic patient sensor
WO2011047216A2 (en) 2009-10-15 2011-04-21 Masimo Corporation Physiological acoustic monitoring system
US8790268B2 (en) 2009-10-15 2014-07-29 Masimo Corporation Bidirectional physiological information display
US9106038B2 (en) 2009-10-15 2015-08-11 Masimo Corporation Pulse oximetry system with low noise cable hub
US10463340B2 (en) 2009-10-15 2019-11-05 Masimo Corporation Acoustic respiratory monitoring systems and methods
US9066680B1 (en) 2009-10-15 2015-06-30 Masimo Corporation System for determining confidence in respiratory rate measurements
US9848800B1 (en) 2009-10-16 2017-12-26 Masimo Corporation Respiratory pause detector
GB2487882B (en) 2009-12-04 2017-03-29 Masimo Corp Calibration for multi-stage physiological monitors
US9307928B1 (en) 2010-03-30 2016-04-12 Masimo Corporation Plethysmographic respiration processor
US9326712B1 (en) 2010-06-02 2016-05-03 Masimo Corporation Opticoustic sensor
US9192351B1 (en) 2011-07-22 2015-11-24 Masimo Corporation Acoustic respiratory monitoring sensor with probe-off detection
EP3603502B1 (en) 2011-10-13 2023-10-04 Masimo Corporation Physiological acoustic monitoring system
US9955937B2 (en) 2012-09-20 2018-05-01 Masimo Corporation Acoustic patient sensor coupler
US10441181B1 (en) 2013-03-13 2019-10-15 Masimo Corporation Acoustic pulse and respiration monitoring system
US10828007B1 (en) 2013-10-11 2020-11-10 Masimo Corporation Acoustic sensor with attachment portion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7703836A (en) * 1977-04-07 1977-06-30 Philips Nv A MEMBRANE CONSISTING OF AT LEAST ONE FOIL OF A PIEZELECTRIC POLYMER MATERIAL.
US4352961A (en) * 1979-06-15 1982-10-05 Hitachi, Ltd. Transparent flat panel piezoelectric speaker
ES2031328T3 (en) * 1988-09-26 1992-12-01 E W D Electronic-Werke Deutschland Gmbh SOUND AND IMAGE PLAYER DEVICE.
EP0599250B1 (en) * 1992-11-24 2001-10-04 Canon Kabushiki Kaisha Acoustic output device, and electronic apparatus using said device

Also Published As

Publication number Publication date
GB2358546B (en) 2002-01-23
GB2358546A (en) 2001-07-25

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20191111