CA1100618A - Wireless hearing aid - Google Patents
Wireless hearing aidInfo
- Publication number
- CA1100618A CA1100618A CA259,123A CA259123A CA1100618A CA 1100618 A CA1100618 A CA 1100618A CA 259123 A CA259123 A CA 259123A CA 1100618 A CA1100618 A CA 1100618A
- Authority
- CA
- Canada
- Prior art keywords
- user
- ear
- disposed
- receiver
- cores
- 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
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
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
- G02C11/06—Hearing aids
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Neurosurgery (AREA)
- Signal Processing (AREA)
- Eyeglasses (AREA)
- Prostheses (AREA)
- Circuit For Audible Band Transducer (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A nearing aid of the class wherein sound from both sides of a user is to be applied to only one ear. The sound from the side remote from the ear is transmitted to the ear using a technique that eliminates the use of wires or other conductors. The sound from the remote side may be presented along with any sound from the other side of the user's body.
A nearing aid of the class wherein sound from both sides of a user is to be applied to only one ear. The sound from the side remote from the ear is transmitted to the ear using a technique that eliminates the use of wires or other conductors. The sound from the remote side may be presented along with any sound from the other side of the user's body.
Description
BRIEF SUMMARY ~F THE INVENTION
This invention concerns hearing aids of the class designed to present direct contralateral routing of sound to one ear of a user~ It has been discovered that many individuals afflicted with hearing problems have only one ear that has any useful func-tion as far as detecting sound.
Under such a condition, substantially all of the sound which approaches the user from the side of the head remote from the ear that is capable of detecting sound is either very confusing or is unheard at all. In order to conduct sound from the side of the head remote from the usable ear, prior art devices have utilized conductors disposed within the structure of an eyeglass type of hearing aid or have pro-vided conductors extending along the back of a head rom conventional hearing aid apparatus positioned on the side remote from the good ear to a receiver disposed in sound transmitting relationship to the good ear. For a number of reasons, including the fact that conductors have proven to be unreliable, such forms of hearing aids have had limited success from an operational and acceptance standpoint by those persons who may benefit from the use of the con-tra-lateral relocation of sound concept.
In the present invention, the use of conductors, wires, and/or tubes ~or such purposes, have been eliminated.
This provides a great deal of flexibility and elimina-tes the problems formerly associated with the use of such apparatus.
Briefly, this is accomplished through the use of a magnetic signal transmitting medium utilizing a radio carrier fre-quency that is modula-ted at the frequency of the audible signal under considera-tion.
This invention concerns hearing aids of the class designed to present direct contralateral routing of sound to one ear of a user~ It has been discovered that many individuals afflicted with hearing problems have only one ear that has any useful func-tion as far as detecting sound.
Under such a condition, substantially all of the sound which approaches the user from the side of the head remote from the ear that is capable of detecting sound is either very confusing or is unheard at all. In order to conduct sound from the side of the head remote from the usable ear, prior art devices have utilized conductors disposed within the structure of an eyeglass type of hearing aid or have pro-vided conductors extending along the back of a head rom conventional hearing aid apparatus positioned on the side remote from the good ear to a receiver disposed in sound transmitting relationship to the good ear. For a number of reasons, including the fact that conductors have proven to be unreliable, such forms of hearing aids have had limited success from an operational and acceptance standpoint by those persons who may benefit from the use of the con-tra-lateral relocation of sound concept.
In the present invention, the use of conductors, wires, and/or tubes ~or such purposes, have been eliminated.
This provides a great deal of flexibility and elimina-tes the problems formerly associated with the use of such apparatus.
Briefly, this is accomplished through the use of a magnetic signal transmitting medium utilizing a radio carrier fre-quency that is modula-ted at the frequency of the audible signal under considera-tion.
-2-It lS therefore an object of this invention to provide improved contralateral relocation of sound.
~nother object of this invention is to provide a conductor-less hearing aid apparatus for detecting sound occurring on the side of a user's body that is remote from the ear of a user. These and other objects of our invention will become apparent from a consideration of the appended specification, claims and drawings in which:
Fig. 1 is a sketch of an eyeglass type of hearing aid to which the principles of our invention have been applied;
Figs. 2 and 3 are sectional views of the respective templar members of the eyeglass apparatus shown 1I1 Fig. 1;
Fig. 4 lS an electrical schematic diagram of a receiver as may be utilized in the apparatus of Figs. 1, 2 and 3;
Fig. 5 is an electrical schematic drawing of a transmitter as may be used in such apparatus;
Fig. 6 is a rear view of a human head showing the ~0 apparatus in position on the head;
Fig. 7 is a sche~atic and diagrammatic representa-tion of the operation of the apparatus shown in Figs. 1-6;
Flg. 8 is a sketch of a portion of the appara-tus shown in Figs. 1-~; and Fig. ~ is a fragmentary sketch showing the applica-tion of the receiver to an ear mold disposed in the ear canal of a user, the head and hearing aid apparatus being shown in fragmentary form.
g DESC~IPTION OF THE PREFERRED EM~ODIMENT
Referring now to the drawings, a complete eyeglass type of hearing aid is indicated generally by reference character 10 and includes a frame ll for receiving and carrying a pair of eyeglass lenses. A right templar member 12 and a left templar member 13 are showT~ connected, respectively, to hinge members 14 r and 15 that are mounted through suitable means ~not shown) on frame 11.
Right ~emplar member 12 includes a case 20 having an integrally foI~ed f!
hinge receptacle 21 at its front end for removably disposing right templar member 12 on hinge 14. Case 20 aiso includes a microphone 22 disposed near the front end, a front circuit board 23 likewise disposed near the front end as well as f a receiver 24 disposed near the middle ad~acent to an outlet tube 25. A rear l,~
e circuit card 26, a battery carrier 27 and a coil and core 28 (having an axis 74)are shown disposed in the rearmost portion o~ right templar member 12. '~;
Left templar member l3 lncludes a case 30 having a hinge receptacle 31 ~.
disposed at the front end, a microphone 22 and a front circuit board disposed f rearwardly from the front end and may also contain a receiver 34 disposed toward the middle of left templar member 13 adjacent an outlet tube 35. A rear ~;
cireuit card 36, a battery carrier 37 and a coil and core 38 (having an axis 110) f, are disposed in the rearward portion of left templar member 13. The cores used f~
in both members 12 and 13 may be, for example, MgFe or ~InFe, and the shape of the cores of the coils and cores may be substantially the same.
While templar members 12 and 13 are shown in Figs. 2 and 3, in section l`~
elevation, it may be apparent to those skilled in the art that cases 20 and 30 i~
may conveniently be formed of two half members adapted to be fitted and, for . , . , ~ .
example, adhesively held together to form a complete hollow case wlthin which the respective components may ~e contalned.
It may also be noted at this polnt that coil and core members 28 and ~8 are each possessed of a longitudinal axis indicated by reference characters 74 and 1lO, respectively, as indicated on Figs. l, 2 and 3 of the drawings.
In tne illustrated embodiment t templar member 13 is shown as a receiver of magnetic signals and the active apparatus that lS utilized thereln is shown in schematic form in Fig. 4. Similarly, templar member 12 is shown as a transmitter of a magnetic signal and its active apparatus is shown in Fig. 5. It may be seen that the respective templar members may be reversed either in active components on the inside or, by reverslng the positions on the hinyes on frame ll.
In Fig. 4, a front circuit card 2~ is shown sepa-rated from a rear clrcuit card 26 ~y a dasned line to lllus-trate the physlcal separation of the several elements of which the translating means and receiver is comprised.
~ The apparatus of Fig. 4 includes an input to rear circuit board 26 comprised of a coil and core 28, including a core 73 of suitable magne~ic material exhibiting high permeability, little or no coercivity and low losses at a predetermined frequency of operation and a coil winding 72 selected to present a high Q. ~1~he output of coil and core 28 is suitably amplified and demodulated as the signal progresses from the rear circuit ~oard 26 to the front circuit board 23 and to receiver 2~connected to the out-put of transistor 71. It will be seen that the signal
~nother object of this invention is to provide a conductor-less hearing aid apparatus for detecting sound occurring on the side of a user's body that is remote from the ear of a user. These and other objects of our invention will become apparent from a consideration of the appended specification, claims and drawings in which:
Fig. 1 is a sketch of an eyeglass type of hearing aid to which the principles of our invention have been applied;
Figs. 2 and 3 are sectional views of the respective templar members of the eyeglass apparatus shown 1I1 Fig. 1;
Fig. 4 lS an electrical schematic diagram of a receiver as may be utilized in the apparatus of Figs. 1, 2 and 3;
Fig. 5 is an electrical schematic drawing of a transmitter as may be used in such apparatus;
Fig. 6 is a rear view of a human head showing the ~0 apparatus in position on the head;
Fig. 7 is a sche~atic and diagrammatic representa-tion of the operation of the apparatus shown in Figs. 1-6;
Flg. 8 is a sketch of a portion of the appara-tus shown in Figs. 1-~; and Fig. ~ is a fragmentary sketch showing the applica-tion of the receiver to an ear mold disposed in the ear canal of a user, the head and hearing aid apparatus being shown in fragmentary form.
g DESC~IPTION OF THE PREFERRED EM~ODIMENT
Referring now to the drawings, a complete eyeglass type of hearing aid is indicated generally by reference character 10 and includes a frame ll for receiving and carrying a pair of eyeglass lenses. A right templar member 12 and a left templar member 13 are showT~ connected, respectively, to hinge members 14 r and 15 that are mounted through suitable means ~not shown) on frame 11.
Right ~emplar member 12 includes a case 20 having an integrally foI~ed f!
hinge receptacle 21 at its front end for removably disposing right templar member 12 on hinge 14. Case 20 aiso includes a microphone 22 disposed near the front end, a front circuit board 23 likewise disposed near the front end as well as f a receiver 24 disposed near the middle ad~acent to an outlet tube 25. A rear l,~
e circuit card 26, a battery carrier 27 and a coil and core 28 (having an axis 74)are shown disposed in the rearmost portion o~ right templar member 12. '~;
Left templar member l3 lncludes a case 30 having a hinge receptacle 31 ~.
disposed at the front end, a microphone 22 and a front circuit board disposed f rearwardly from the front end and may also contain a receiver 34 disposed toward the middle of left templar member 13 adjacent an outlet tube 35. A rear ~;
cireuit card 36, a battery carrier 37 and a coil and core 38 (having an axis 110) f, are disposed in the rearward portion of left templar member 13. The cores used f~
in both members 12 and 13 may be, for example, MgFe or ~InFe, and the shape of the cores of the coils and cores may be substantially the same.
While templar members 12 and 13 are shown in Figs. 2 and 3, in section l`~
elevation, it may be apparent to those skilled in the art that cases 20 and 30 i~
may conveniently be formed of two half members adapted to be fitted and, for . , . , ~ .
example, adhesively held together to form a complete hollow case wlthin which the respective components may ~e contalned.
It may also be noted at this polnt that coil and core members 28 and ~8 are each possessed of a longitudinal axis indicated by reference characters 74 and 1lO, respectively, as indicated on Figs. l, 2 and 3 of the drawings.
In tne illustrated embodiment t templar member 13 is shown as a receiver of magnetic signals and the active apparatus that lS utilized thereln is shown in schematic form in Fig. 4. Similarly, templar member 12 is shown as a transmitter of a magnetic signal and its active apparatus is shown in Fig. 5. It may be seen that the respective templar members may be reversed either in active components on the inside or, by reverslng the positions on the hinyes on frame ll.
In Fig. 4, a front circuit card 2~ is shown sepa-rated from a rear clrcuit card 26 ~y a dasned line to lllus-trate the physlcal separation of the several elements of which the translating means and receiver is comprised.
~ The apparatus of Fig. 4 includes an input to rear circuit board 26 comprised of a coil and core 28, including a core 73 of suitable magne~ic material exhibiting high permeability, little or no coercivity and low losses at a predetermined frequency of operation and a coil winding 72 selected to present a high Q. ~1~he output of coil and core 28 is suitably amplified and demodulated as the signal progresses from the rear circuit ~oard 26 to the front circuit board 23 and to receiver 2~connected to the out-put of transistor 71. It will be seen that the signal
3~ normally applied to coil and core ~8 is a magnetic field of preaetermine~ frequency of oscillation that is modulated at an audio frequency and that the audio component is selected to drive transistor 71 which in turn drives receiver ~4 that may be pLaced in, or in a positlon to apply the output thereof to the ear canal of the usable ear of a user. The selection of the values of the components may be determined by one skilled in the art wi-th which this invention is concerned.
Referring to Fig. 5 of the drawings, a front circuit board is indicated generally ~y reference character 33 and a rear circuit board is indicated generally by reference character 36. These may be suitably disposed in the referred to sections of templar member 13 with a micro-phone 32 disposed near the front end to receive sound appearing on the side of the body of the user at which templar member 13 and microphone 32 are positioned. The audio signal from mlcrophone 32 is amplified and supplied to energize coil and core 38, which includes coil windings 105, 106 and 107 and a core 108 of like suitable material as described in connection with core 73. It will be recognized that coil and core 38 lS connected to provide an oscillator operable at a predetermined frequency Which is suitably modulated so that the output of coil and core 38 is comprised of a frequency determined by the values of the components which is modulated at an audio frequency as determined by the signal derived from microphone 32.
Again, those skilled in the art are ~elieved a~le to determine the nature and values o~ components that may be utilized to perform the function provided by the illustrated embodiment.
6~8 Referring to Fig. 6 ~f tne dlawlngs, tne head of a wser is lndlcaled generally ~y reference character 1l2 and the rlght ana le~t ears are lndlcaled r~y tne letters ~ ana R. ~emplar members 1J an~ 12 are shown dlsposea ana exten~ing downwardLy over Ihe rear or the ears of the axes 74 an~ llu or COil an~ core devices ~8 and 3~ in approxlma~e parallelism with respect tO tne vertlcal axls and, as may be seen on Fi~. 1 or the drawings, axes 74 ana llu are in substantial parallelism when vlewed lU from one side or ~he other. ~his is also shown ln Flg.
of ~he ~rawing in which tne c~il and core assem~lies 2 ana 38 are shown dlsplaced by a variable distance, D, to indicate tha-t tnere is -d dirfe-ence ih a width of the nea~ of a user or tha-t tllere may be a di~fernce in the relative dlspostlons of the two elements wrlen ~he principles of our lnventlon are dpplieu to ~ther forms of near ai~s.
In Fig. 7, the respective signa~s tnat may ~e present on elther side of the head ~f a user are illuslrated for alternalive silualions. Looking at the right half of 2u Flg. 7, it may be seen that two signals represented by the compressional wave diagrams 116 and 115 are applied to tne same lefl ear of a user undeL a condition in whlch ~t is assumed that the left ear may properly function t~ sense sound wnile the right ear lS unable to pr~perly sense s~un~
energy. Under -thls condltion, sound energy 115 is converted to a modulated field of magnetic energy an~ the solid line proceeding from rignt t~ left indicates the t~ansmission of the modulated magnetic field to the le-ft ear whereat i~ is conver-~ed to sound energy as represented by reference 3û character 115. Both of tne sounds impinying On the le~t ear are tnereafler sensed r~y t~le l~ft ear. In some circumstances, there lS only one sound impingement on the person of the user, this being either the sound represented by reference character 116 or -that of reference character 115 and in either event the user is maae aware of the source and directlon of the sound so that an lncreased awareness of the existence of sound energy in proximity to the body of the wearer may be attained.
On the left-hand slde of Flg. /, the usable ear is assumed to be on the right side and it will be seen that the opposite phenomena will occur.
Fig. 9 illustrates the application of the two sources of sound to the one good or usable ear of a user in which templar member 13 is shown in proximi-ty to the ear of a wearer having a sound tube 1~0 extending lnto an ear mold 121 that is positioned in the ear of the wearer.
If the ear mold lS a complete ear mold, it might be furnishe~
with a vent 12~ to allow transmission of sound from that slde of the body directly into the ear canal so that the signals represented by reference character 116 and by ; ~0 reference character 115, as illustrated on the left-hand end of E'ig. 7, may be singly or concurrently applied to the usable ear of the weaxer.
One operative embo~iment of the invention has been operated very satisfactorily at a nominal frequency of 200,u00 hertz to provide, when u~illzed in con~unction with the above described components, a low power consump-tion that is substantlally free from interference from other sources, such as electrosta~ic energy. At the ~eslred frequency of operation of the magnetic carrier field, a very selective transmission of energy from one side of the 6~8 wearer to the other is obta~ned. The Ise of suitable circuit and component design to provide the magnetic carrier field resu:Lts in a stable and efficient performance that, when the Q of the resonant circuit is maintained at a .
relatlvely high value, results in a low power consumption, The magnetic field is easily transmitted through the bone and tissue from one side of the user's body to the others, whereas other forms Oe energy transmission are believed to be inefficient or inoperative from a practical standpoint. Further, operation at the nominal frequency of 150-250 Khz (preferably 200-250 Khz) allows for a range of s~eparation between the temp~ar members or transmitter and receiver that is compatible with the range of dimensions existing in the bodies of the users, It may also be noted that the principles of the invention are also applicable tt othtr torms ot hearing aids, inc:L~ding behind-LIIe-ear cypts, ',:
.
~, - t .
.
Referring to Fig. 5 of the drawings, a front circuit board is indicated generally ~y reference character 33 and a rear circuit board is indicated generally by reference character 36. These may be suitably disposed in the referred to sections of templar member 13 with a micro-phone 32 disposed near the front end to receive sound appearing on the side of the body of the user at which templar member 13 and microphone 32 are positioned. The audio signal from mlcrophone 32 is amplified and supplied to energize coil and core 38, which includes coil windings 105, 106 and 107 and a core 108 of like suitable material as described in connection with core 73. It will be recognized that coil and core 38 lS connected to provide an oscillator operable at a predetermined frequency Which is suitably modulated so that the output of coil and core 38 is comprised of a frequency determined by the values of the components which is modulated at an audio frequency as determined by the signal derived from microphone 32.
Again, those skilled in the art are ~elieved a~le to determine the nature and values o~ components that may be utilized to perform the function provided by the illustrated embodiment.
6~8 Referring to Fig. 6 ~f tne dlawlngs, tne head of a wser is lndlcaled generally ~y reference character 1l2 and the rlght ana le~t ears are lndlcaled r~y tne letters ~ ana R. ~emplar members 1J an~ 12 are shown dlsposea ana exten~ing downwardLy over Ihe rear or the ears of the axes 74 an~ llu or COil an~ core devices ~8 and 3~ in approxlma~e parallelism with respect tO tne vertlcal axls and, as may be seen on Fi~. 1 or the drawings, axes 74 ana llu are in substantial parallelism when vlewed lU from one side or ~he other. ~his is also shown ln Flg.
of ~he ~rawing in which tne c~il and core assem~lies 2 ana 38 are shown dlsplaced by a variable distance, D, to indicate tha-t tnere is -d dirfe-ence ih a width of the nea~ of a user or tha-t tllere may be a di~fernce in the relative dlspostlons of the two elements wrlen ~he principles of our lnventlon are dpplieu to ~ther forms of near ai~s.
In Fig. 7, the respective signa~s tnat may ~e present on elther side of the head ~f a user are illuslrated for alternalive silualions. Looking at the right half of 2u Flg. 7, it may be seen that two signals represented by the compressional wave diagrams 116 and 115 are applied to tne same lefl ear of a user undeL a condition in whlch ~t is assumed that the left ear may properly function t~ sense sound wnile the right ear lS unable to pr~perly sense s~un~
energy. Under -thls condltion, sound energy 115 is converted to a modulated field of magnetic energy an~ the solid line proceeding from rignt t~ left indicates the t~ansmission of the modulated magnetic field to the le-ft ear whereat i~ is conver-~ed to sound energy as represented by reference 3û character 115. Both of tne sounds impinying On the le~t ear are tnereafler sensed r~y t~le l~ft ear. In some circumstances, there lS only one sound impingement on the person of the user, this being either the sound represented by reference character 116 or -that of reference character 115 and in either event the user is maae aware of the source and directlon of the sound so that an lncreased awareness of the existence of sound energy in proximity to the body of the wearer may be attained.
On the left-hand slde of Flg. /, the usable ear is assumed to be on the right side and it will be seen that the opposite phenomena will occur.
Fig. 9 illustrates the application of the two sources of sound to the one good or usable ear of a user in which templar member 13 is shown in proximi-ty to the ear of a wearer having a sound tube 1~0 extending lnto an ear mold 121 that is positioned in the ear of the wearer.
If the ear mold lS a complete ear mold, it might be furnishe~
with a vent 12~ to allow transmission of sound from that slde of the body directly into the ear canal so that the signals represented by reference character 116 and by ; ~0 reference character 115, as illustrated on the left-hand end of E'ig. 7, may be singly or concurrently applied to the usable ear of the weaxer.
One operative embo~iment of the invention has been operated very satisfactorily at a nominal frequency of 200,u00 hertz to provide, when u~illzed in con~unction with the above described components, a low power consump-tion that is substantlally free from interference from other sources, such as electrosta~ic energy. At the ~eslred frequency of operation of the magnetic carrier field, a very selective transmission of energy from one side of the 6~8 wearer to the other is obta~ned. The Ise of suitable circuit and component design to provide the magnetic carrier field resu:Lts in a stable and efficient performance that, when the Q of the resonant circuit is maintained at a .
relatlvely high value, results in a low power consumption, The magnetic field is easily transmitted through the bone and tissue from one side of the user's body to the others, whereas other forms Oe energy transmission are believed to be inefficient or inoperative from a practical standpoint. Further, operation at the nominal frequency of 150-250 Khz (preferably 200-250 Khz) allows for a range of s~eparation between the temp~ar members or transmitter and receiver that is compatible with the range of dimensions existing in the bodies of the users, It may also be noted that the principles of the invention are also applicable tt othtr torms ot hearing aids, inc:L~ding behind-LIIe-ear cypts, ',:
.
~, - t .
.
Claims (8)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Hearing aid apparatus comprising in combination:
a) microphone means adapted to receive sound energy on one side of the body of a user;
b) first signal. translating means connected to and disposed in prox-imity to said microphone and including an elongated coil and core having a longitudinal axis and exhibiting magnetic properties for establishing a magnetic field of predetermined frequency and including a component proportional to the sound energy impingment on said microphone;
c) receiver means adapted to be disposed on the other side of the body of a user;
d) second signal translating means connected to and disposed adjacent said receiver means, said second signal translating means, including an elongated coil and core having a longitudinal axis in substantial parallelism with the coil and core of said first signal translating means, for energizing said receiver means in accordance with said component of said magnetic field;
e) means connecting the output of said receiver and the sound energy on the other side of the user to the auditory sense organs on said other side of said user, whereby sound is contralaterally routed to said auditory sense organs.
a) microphone means adapted to receive sound energy on one side of the body of a user;
b) first signal. translating means connected to and disposed in prox-imity to said microphone and including an elongated coil and core having a longitudinal axis and exhibiting magnetic properties for establishing a magnetic field of predetermined frequency and including a component proportional to the sound energy impingment on said microphone;
c) receiver means adapted to be disposed on the other side of the body of a user;
d) second signal translating means connected to and disposed adjacent said receiver means, said second signal translating means, including an elongated coil and core having a longitudinal axis in substantial parallelism with the coil and core of said first signal translating means, for energizing said receiver means in accordance with said component of said magnetic field;
e) means connecting the output of said receiver and the sound energy on the other side of the user to the auditory sense organs on said other side of said user, whereby sound is contralaterally routed to said auditory sense organs.
2. The apparatus of claim 1 in which the first and second signal translating means are each disposed in a templar member of a pair of eyeglasses.
3. The apparatus of claim 1 in which the first signal translating means and microphone are disposed in a behind-the-ear hearing aid to be placed on one ear of a user and the second signal translating means and receiver are disposed in a behind-the-ear hearing aid to be placed on the other ear of a user.
4. The apparatus of claim 1 in which the coils are comprised of material exhibiting high permeability, low coercivity and low loss at the frequency of the magnetic field.
5. The apparatus of claim 1 in which the frequency of operation is in the range of 150 to 50 Khz.
6. The apparatus of claim 4 in which the cores are selected from a group including MgFe and MnFe.
7. The apparatus of claim 1 in which the shape of the cores of the coils and cores is substantially the same.
8. The apparatus of claim 6 in which the shape of the cores of the coils and cores is substantially the same.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62349675A | 1975-10-17 | 1975-10-17 | |
| US623,496 | 1975-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1100618A true CA1100618A (en) | 1981-05-05 |
Family
ID=24498293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA259,123A Expired CA1100618A (en) | 1975-10-17 | 1976-08-16 | Wireless hearing aid |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS5249703A (en) |
| AU (1) | AU510028B2 (en) |
| BE (1) | BE847287A (en) |
| BR (1) | BR7605770A (en) |
| CA (1) | CA1100618A (en) |
| CH (1) | CH610169A5 (en) |
| DE (1) | DE2643465A1 (en) |
| DK (1) | DK459376A (en) |
| FR (1) | FR2328350A1 (en) |
| GB (1) | GB1559611A (en) |
| IT (1) | IT1073024B (en) |
| LU (1) | LU75885A1 (en) |
| MX (1) | MX143842A (en) |
| NL (1) | NL7610562A (en) |
| NO (1) | NO763455L (en) |
| SE (1) | SE7610096L (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2844979C2 (en) * | 1978-10-16 | 1989-08-31 | Juval Dr.-Ing. 8000 München Mantel | Hearing aid |
| DE8105651U1 (en) * | 1981-02-27 | 1981-08-20 | Siemens AG, 1000 Berlin und 8000 München | INDUCTION COIL |
| JPS57191762A (en) * | 1981-05-20 | 1982-11-25 | Toshiba Corp | Abnormality detecting device |
| JPS59227547A (en) * | 1983-05-30 | 1984-12-20 | ヴオルゴグラ−ドスキイ・ポリテクニチエスキイ・インスチテユ−ト | Anti-lock brake system for prime mover type vehicle |
| JPS6434100A (en) * | 1987-07-30 | 1989-02-03 | Rion Co | Hearing aid |
| EP0993232A3 (en) * | 1998-10-06 | 2003-06-25 | Dimitrios Pierroutsakos | Device for amelioration of the quality of hearing |
| GB2385738A (en) * | 2002-02-21 | 2003-08-27 | Gordon Maclean Campbell | Head-mounted microphone transmitting signals to a hearing aid |
| DE10323219B3 (en) * | 2003-05-22 | 2004-12-09 | Siemens Audiologische Technik Gmbh | Coil system and remote control for a hearing aid |
| US10609465B1 (en) * | 2018-10-04 | 2020-03-31 | Bose Corporation | Acoustic device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS437621Y1 (en) * | 1964-07-25 | 1968-04-05 |
-
1976
- 1976-08-16 CA CA259,123A patent/CA1100618A/en not_active Expired
- 1976-08-31 BR BR7605770A patent/BR7605770A/en unknown
- 1976-08-31 AU AU17303/76A patent/AU510028B2/en not_active Expired
- 1976-09-07 MX MX166206A patent/MX143842A/en unknown
- 1976-09-13 SE SE7610096A patent/SE7610096L/en unknown
- 1976-09-23 NL NL7610562A patent/NL7610562A/en not_active Application Discontinuation
- 1976-09-27 DE DE19762643465 patent/DE2643465A1/en not_active Ceased
- 1976-09-28 LU LU75885A patent/LU75885A1/xx unknown
- 1976-10-01 FR FR7629523A patent/FR2328350A1/en active Granted
- 1976-10-02 CH CH1244076A patent/CH610169A5/en not_active IP Right Cessation
- 1976-10-04 JP JP51119263A patent/JPS5249703A/en active Granted
- 1976-10-11 NO NO763455A patent/NO763455L/no unknown
- 1976-10-13 DK DK459376A patent/DK459376A/en unknown
- 1976-10-14 IT IT28297/76A patent/IT1073024B/en active
- 1976-10-14 BE BE171519A patent/BE847287A/en not_active IP Right Cessation
- 1976-10-15 GB GB43007/76A patent/GB1559611A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH610169A5 (en) | 1979-03-30 |
| DK459376A (en) | 1977-04-18 |
| FR2328350B3 (en) | 1979-06-08 |
| LU75885A1 (en) | 1977-05-11 |
| SE7610096L (en) | 1977-04-18 |
| AU510028B2 (en) | 1980-06-05 |
| NL7610562A (en) | 1977-04-19 |
| BE847287A (en) | 1977-01-31 |
| BR7605770A (en) | 1977-08-23 |
| DE2643465A1 (en) | 1977-05-05 |
| JPS5734720B2 (en) | 1982-07-24 |
| MX143842A (en) | 1981-07-24 |
| AU1730376A (en) | 1978-03-09 |
| NO763455L (en) | 1977-04-19 |
| FR2328350A1 (en) | 1977-05-13 |
| GB1559611A (en) | 1980-01-23 |
| JPS5249703A (en) | 1977-04-21 |
| IT1073024B (en) | 1985-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |