GB553955A - Improvements in or relating to electro-magnetic sound-transmission apparatus - Google Patents

Improvements in or relating to electro-magnetic sound-transmission apparatus

Info

Publication number
GB553955A
GB553955A GB13891/41A GB1389141A GB553955A GB 553955 A GB553955 A GB 553955A GB 13891/41 A GB13891/41 A GB 13891/41A GB 1389141 A GB1389141 A GB 1389141A GB 553955 A GB553955 A GB 553955A
Authority
GB
United Kingdom
Prior art keywords
armature
magnet
deaf
poles
speech
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.)
Expired
Application number
GB13891/41A
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
Application filed by Individual filed Critical Individual
Priority to GB13891/41A priority Critical patent/GB553955A/en
Priority to US460950A priority patent/US2402392A/en
Publication of GB553955A publication Critical patent/GB553955A/en
Expired 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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
    • H04R25/606—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Abstract

553,955. Telephone instruments. GOLDSCHMIDT, R., Oct. 28, 1941, No. 13891. [Class 40 (iv)] A deaf-aid bone-conduction apparatus comprises in combination a magnet with speech windings 17 and a ferro-magnetic armature 10 so formed that it may be surgically inserted beneath the skin 13 of the user, the skin forming a resilient barrier between the armature and the magnet poles so that the impulses conveyed to the armature by the speech currents may be transferred by it to the skull. In the form shown, the armature is provided with a peg 11 which is driven or screwed into, or is in contact with, the mastoid bone 12. The armature may consist of a perforated plate, or it may be slotted as shown in Fig. 5 to form two springs of differing vibration frequencies, for example of about 800-1500 cycles per second. It may be plated with non-corrosive material or be made of or clad in stainless steel of moderate chromium content and in an annealed condition. According to the Provisional Specification, the armature may be made hollow in the form of a flat drum; also, a defective tonal response of the deaf subject may be corrected by a resonance introduced into the electric circuit by a reed bridging the poles of the magnet with a small leakage gap.
GB13891/41A 1941-10-28 1941-10-28 Improvements in or relating to electro-magnetic sound-transmission apparatus Expired GB553955A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB13891/41A GB553955A (en) 1941-10-28 1941-10-28 Improvements in or relating to electro-magnetic sound-transmission apparatus
US460950A US2402392A (en) 1941-10-28 1942-10-06 Electromagnetic sound-transmission apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13891/41A GB553955A (en) 1941-10-28 1941-10-28 Improvements in or relating to electro-magnetic sound-transmission apparatus

Publications (1)

Publication Number Publication Date
GB553955A true GB553955A (en) 1943-06-11

Family

ID=10031245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13891/41A Expired GB553955A (en) 1941-10-28 1941-10-28 Improvements in or relating to electro-magnetic sound-transmission apparatus

Country Status (2)

Country Link
US (1) US2402392A (en)
GB (1) GB553955A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176078A (en) * 1985-05-23 1986-12-10 Bristol Myers Co Direct bone conduction hearing aid
NL8601307A (en) * 1985-05-22 1986-12-16 Bristol Myers Co IMPLANTABLE ELECTROMAGNETIC HEARING AID WITH MIDDLE EAR CONDUCTION.
US4774933A (en) * 1987-05-18 1988-10-04 Xomed, Inc. Method and apparatus for implanting hearing device
US6277148B1 (en) 1999-02-11 2001-08-21 Soundtec, Inc. Middle ear magnet implant, attachment device and method, and test instrument and method
US6436028B1 (en) 1999-12-28 2002-08-20 Soundtec, Inc. Direct drive movement of body constituent
EP2302951A1 (en) 2009-09-24 2011-03-30 Oticon Medical A/S Method of determining a gain setting of a bone-anchored hearing aid

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611829A (en) * 1949-06-17 1952-09-23 Dictograph Products Co Inc Audiphone
USRE32947E (en) * 1980-09-30 1989-06-13 Baptist Medical Center Of Oklahoma, Inc. Magnetic transcutaneous mount for external device of an associated implant
SE431705B (en) * 1981-12-01 1984-02-20 Bo Hakansson COUPLING, PREFERRED FOR MECHANICAL TRANSMISSION OF SOUND INFORMATION TO THE BALL OF A HEARING DAMAGED PERSON
SE447947B (en) * 1985-05-10 1986-12-22 Bo Hakansson DEVICE FOR A HORSE DEVICE
US4776322A (en) * 1985-05-22 1988-10-11 Xomed, Inc. Implantable electromagnetic middle-ear bone-conduction hearing aid device
US5015225A (en) * 1985-05-22 1991-05-14 Xomed, Inc. Implantable electromagnetic middle-ear bone-conduction hearing aid device
US5282858A (en) * 1991-06-17 1994-02-01 American Cyanamid Company Hermetically sealed implantable transducer
US6354299B1 (en) * 1997-10-27 2002-03-12 Neuropace, Inc. Implantable device for patient communication
SE523125C2 (en) * 2001-06-21 2004-03-30 P & B Res Ab Vibrator for vibration generation in bone anchored hearing aids
US7033313B2 (en) * 2002-12-11 2006-04-25 No. 182 Corporate Ventures Ltd. Surgically implantable hearing aid
DE102009014772A1 (en) * 2009-03-25 2010-09-30 Cochlear Ltd., Lane Cove hearing aid
US8891795B2 (en) * 2012-01-31 2014-11-18 Cochlear Limited Transcutaneous bone conduction device vibrator having movable magnetic mass
US9800982B2 (en) * 2014-06-18 2017-10-24 Cochlear Limited Electromagnetic transducer with expanded magnetic flux functionality

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601307A (en) * 1985-05-22 1986-12-16 Bristol Myers Co IMPLANTABLE ELECTROMAGNETIC HEARING AID WITH MIDDLE EAR CONDUCTION.
FR2586557A1 (en) * 1985-05-22 1987-03-06 Bristol Myers Co IMPLANTABLE ELECTROMAGNETIC DEVICE FOR ASSISTING BONE CONDUCTION HEARING IN THE MIDDLE EAR
GB2176078A (en) * 1985-05-23 1986-12-10 Bristol Myers Co Direct bone conduction hearing aid
AU593251B2 (en) * 1985-05-23 1990-02-08 Xomed-Treace, Inc. Direct bone conduction hearing aid device
US4774933A (en) * 1987-05-18 1988-10-04 Xomed, Inc. Method and apparatus for implanting hearing device
US6277148B1 (en) 1999-02-11 2001-08-21 Soundtec, Inc. Middle ear magnet implant, attachment device and method, and test instrument and method
US6436028B1 (en) 1999-12-28 2002-08-20 Soundtec, Inc. Direct drive movement of body constituent
EP2302951A1 (en) 2009-09-24 2011-03-30 Oticon Medical A/S Method of determining a gain setting of a bone-anchored hearing aid
US8517910B2 (en) 2009-09-24 2013-08-27 Oticon Medical A/S Method of determining a gain setting of a bone-anchored hearing aid

Also Published As

Publication number Publication date
US2402392A (en) 1946-06-18

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