EP2020167A4 - Generic electromagnetically-countered systems and methods - Google Patents

Generic electromagnetically-countered systems and methods

Info

Publication number
EP2020167A4
EP2020167A4 EP07746697.7A EP07746697A EP2020167A4 EP 2020167 A4 EP2020167 A4 EP 2020167A4 EP 07746697 A EP07746697 A EP 07746697A EP 2020167 A4 EP2020167 A4 EP 2020167A4
Authority
EP
European Patent Office
Prior art keywords
methods
countered systems
generic electromagnetically
electromagnetically
generic
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.)
Withdrawn
Application number
EP07746697.7A
Other languages
German (de)
French (fr)
Other versions
EP2020167A2 (en
Inventor
Youngtack Shim
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.)
Individual
Original Assignee
Individual
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 US11/440,135 external-priority patent/US7940950B2/en
Priority claimed from US11/510,667 external-priority patent/US7876917B2/en
Application filed by Individual filed Critical Individual
Publication of EP2020167A2 publication Critical patent/EP2020167A2/en
Publication of EP2020167A4 publication Critical patent/EP2020167A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0071—Active shielding
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Prostheses (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Regulation Of General Use Transformers (AREA)
EP07746697.7A 2006-05-25 2007-05-25 Generic electromagnetically-countered systems and methods Withdrawn EP2020167A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/440,135 US7940950B2 (en) 2005-10-03 2006-05-25 Electromagnetically-shielded speaker systems and methods
US11/510,667 US7876917B2 (en) 2006-08-28 2006-08-28 Generic electromagnetically-countered systems and methods
PCT/KR2007/002549 WO2007139318A2 (en) 2006-05-25 2007-05-25 Generic electromagnetically-countered systems and methods

Publications (2)

Publication Number Publication Date
EP2020167A2 EP2020167A2 (en) 2009-02-04
EP2020167A4 true EP2020167A4 (en) 2015-07-22

Family

ID=38779104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07746697.7A Withdrawn EP2020167A4 (en) 2006-05-25 2007-05-25 Generic electromagnetically-countered systems and methods

Country Status (5)

Country Link
EP (1) EP2020167A4 (en)
JP (2) JP5124567B2 (en)
KR (1) KR101178462B1 (en)
CN (1) CN102413672B (en)
WO (1) WO2007139318A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8148872B2 (en) * 2006-08-28 2012-04-03 Youngtack Shim Electromagnetically-countered actuator systems and methods
US9112395B2 (en) 2006-08-28 2015-08-18 Youngtack Shim Electromagnetically-countered actuator systems and methods
US9525924B2 (en) 2015-03-16 2016-12-20 Microsoft Technology Licensing, Llc Magnetic shielding and communication coil
KR101743635B1 (en) * 2015-10-02 2017-06-05 서울대학교산학협력단 Wireless power and data transfer system without dedicated communicational link
US10389966B2 (en) * 2016-09-02 2019-08-20 Funai Electric Co., Ltd. Display device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04299700A (en) * 1991-03-28 1992-10-22 Matsushita Electric Ind Co Ltd Speaker
DE4236537A1 (en) * 1992-10-22 1994-04-28 Peter Knipper Electrical device, esp. domestic device for use near the body, e.g. hair drier - detects magnetic field in region of body and compensates to reduce field to safe level
WO1996008207A1 (en) * 1994-09-12 1996-03-21 The Catholic University Of America Protection of living systems from adverse effects of electric, magnetic and electromagnetic fields
CA2535456A1 (en) * 2004-09-14 2006-03-14 Ban-Yu Co., Ltd. Hot air heater
US20070092093A1 (en) * 2005-10-03 2007-04-26 Youngtack Shim Electromagnetically-shielded speaker systems and methods

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629683Y2 (en) * 1984-11-20 1987-03-06
JPH042196U (en) * 1990-04-20 1992-01-09
WO1994016536A1 (en) * 1993-01-06 1994-07-21 Velodyne Acoustics, Inc. Speaker containing dual coil
DE19854201C2 (en) * 1998-11-24 2001-05-23 Siemens Audiologische Technik Hearing aid with induction coil to reduce magnetic interference fields
FR2799919B1 (en) * 1999-10-19 2002-10-11 Sagem PERMANENT MAGNET ACTUATOR AND DRIVE ELECTRICAL COIL, ESPECIALLY MOBILE PHONE SPEAKER
CN1429071A (en) * 2001-12-26 2003-07-09 神达电脑股份有限公司 Electromagnetic interference bucking circuit with phase-shifting unit
US7876917B2 (en) 2006-08-28 2011-01-25 Youngtack Shim Generic electromagnetically-countered systems and methods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04299700A (en) * 1991-03-28 1992-10-22 Matsushita Electric Ind Co Ltd Speaker
DE4236537A1 (en) * 1992-10-22 1994-04-28 Peter Knipper Electrical device, esp. domestic device for use near the body, e.g. hair drier - detects magnetic field in region of body and compensates to reduce field to safe level
WO1996008207A1 (en) * 1994-09-12 1996-03-21 The Catholic University Of America Protection of living systems from adverse effects of electric, magnetic and electromagnetic fields
CA2535456A1 (en) * 2004-09-14 2006-03-14 Ban-Yu Co., Ltd. Hot air heater
US20070092093A1 (en) * 2005-10-03 2007-04-26 Youngtack Shim Electromagnetically-shielded speaker systems and methods

Also Published As

Publication number Publication date
KR20090031515A (en) 2009-03-26
CN102413672A (en) 2012-04-11
JP5124567B2 (en) 2013-01-23
JP2012231151A (en) 2012-11-22
EP2020167A2 (en) 2009-02-04
JP2009538524A (en) 2009-11-05
CN102413672B (en) 2016-11-16
WO2007139318A2 (en) 2007-12-06
KR101178462B1 (en) 2012-09-07

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