FR2184887A1 - - Google Patents

Info

Publication number
FR2184887A1
FR2184887A1 FR7317629A FR7317629A FR2184887A1 FR 2184887 A1 FR2184887 A1 FR 2184887A1 FR 7317629 A FR7317629 A FR 7317629A FR 7317629 A FR7317629 A FR 7317629A FR 2184887 A1 FR2184887 A1 FR 2184887A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7317629A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of FR2184887A1 publication Critical patent/FR2184887A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Transducers For Ultrasonic Waves (AREA)
FR7317629A 1972-05-17 1973-05-16 Withdrawn FR2184887A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25530072A 1972-05-17 1972-05-17

Publications (1)

Publication Number Publication Date
FR2184887A1 true FR2184887A1 (fr) 1973-12-28

Family

ID=22967703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7317629A Withdrawn FR2184887A1 (fr) 1972-05-17 1973-05-16

Country Status (6)

Country Link
US (1) US3786495A (fr)
JP (1) JPS5123904B2 (fr)
CA (1) CA971673A (fr)
DE (1) DE2324211A1 (fr)
FR (1) FR2184887A1 (fr)
GB (1) GB1369168A (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4861126A (fr) * 1971-12-02 1973-08-27
US3996922A (en) * 1973-08-17 1976-12-14 Electronic Monitors, Inc. Flexible force responsive transducer
US3890511A (en) * 1974-04-15 1975-06-17 Gte Laboratories Inc Electret pulse generator
US4561002A (en) * 1982-08-30 1985-12-24 General Electric Company Capacitive touch switch arrangement
US5161128A (en) * 1990-11-30 1992-11-03 Ultrasonic Arrays, Inc. Capacitive transducer system and method
NL9101381A (nl) * 1991-08-13 1993-03-01 Microtel Bv Elektreetstructuur, werkwijze voor het vervaardigen daarvan, en een elektro-akoestische transducent van het zgn. elektreet-type.
US5295490A (en) * 1993-01-21 1994-03-22 Dodakian Wayne S Self-contained apnea monitor
US5619476A (en) * 1994-10-21 1997-04-08 The Board Of Trustees Of The Leland Stanford Jr. Univ. Electrostatic ultrasonic transducer
US5894452A (en) * 1994-10-21 1999-04-13 The Board Of Trustees Of The Leland Stanford Junior University Microfabricated ultrasonic immersion transducer
FI962386A0 (fi) 1996-06-07 1996-06-07 Kari Johannes Pirk Kirjavainen Elektroakustisk omvandlare
US5982709A (en) * 1998-03-31 1999-11-09 The Board Of Trustees Of The Leland Stanford Junior University Acoustic transducers and method of microfabrication
EP1191810A4 (fr) * 2000-04-26 2006-12-20 Hosiden Corp Microphone electrostatique a capacitance a electret semi-conducteur
US7280014B2 (en) * 2001-03-13 2007-10-09 Rochester Institute Of Technology Micro-electro-mechanical switch and a method of using and making thereof
JP2002345088A (ja) * 2001-05-18 2002-11-29 Mitsubishi Electric Corp 圧力感応装置及びこれに用いられる半導体基板の製造方法
US7195393B2 (en) * 2001-05-31 2007-03-27 Rochester Institute Of Technology Micro fluidic valves, agitators, and pumps and methods thereof
US6841917B2 (en) * 2001-06-11 2005-01-11 Rochester Institute Of Technology Electrostatic levitation and attraction systems and methods
US7211923B2 (en) * 2001-10-26 2007-05-01 Nth Tech Corporation Rotational motion based, electrostatic power source and methods thereof
US7378775B2 (en) * 2001-10-26 2008-05-27 Nth Tech Corporation Motion based, electrostatic power source and methods thereof
US7287328B2 (en) * 2003-08-29 2007-10-30 Rochester Institute Of Technology Methods for distributed electrode injection
US7217582B2 (en) * 2003-08-29 2007-05-15 Rochester Institute Of Technology Method for non-damaging charge injection and a system thereof
US8581308B2 (en) * 2004-02-19 2013-11-12 Rochester Institute Of Technology High temperature embedded charge devices and methods thereof
US20070074731A1 (en) * 2005-10-05 2007-04-05 Nth Tech Corporation Bio-implantable energy harvester systems and methods thereof
WO2008066956A2 (fr) 2006-05-25 2008-06-05 Ultra-Scan Corporation Lecteur d'objet biométrique comportant un dispositif de manipulation d'ondes ultrasonores
WO2008022072A2 (fr) * 2006-08-11 2008-02-21 Ultra-Scan Corporation Module de réseau hydrophone
DE102006040725A1 (de) * 2006-08-31 2008-03-13 Siemens Ag Vorrichtung zur Energieumwandlung, insbesondere kapazitiver Mikro-Power-Wandler
JP6232047B2 (ja) * 2013-03-19 2017-11-22 仙台スマートマシーンズ株式会社 静電誘導型の振動発電装置及びその製造方法
DE102013217312B4 (de) * 2013-08-30 2016-06-30 Robert Bosch Gmbh Kapazitives MEMS-Bauelement mit einer druckempfindlichen Membran

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445824A (en) * 1965-11-26 1969-05-20 Automatic Elect Lab Information storage matrix utilizing electrets
US3653038A (en) * 1970-02-20 1972-03-28 United Bank Of Denver National Capacitive electric signal device and keyboard using said device
US3705312A (en) * 1970-11-02 1972-12-05 Bell Telephone Labor Inc Preparation of electret transducer elements by application of controlled breakdown electric field
US3668698A (en) * 1970-12-17 1972-06-06 Northern Electric Co Capacitive transducer
US3668417A (en) * 1970-12-28 1972-06-06 Bell Telephone Labor Inc Touch-sensitive switch employing electret foil

Also Published As

Publication number Publication date
US3786495A (en) 1974-01-15
DE2324211A1 (de) 1973-11-29
JPS4950917A (fr) 1974-05-17
GB1369168A (en) 1974-10-02
CA971673A (en) 1975-07-22
JPS5123904B2 (fr) 1976-07-20

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse