WO2002009473A2 - A hearing aid - Google Patents

A hearing aid Download PDF

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Publication number
WO2002009473A2
WO2002009473A2 PCT/IL2001/000655 IL0100655W WO0209473A2 WO 2002009473 A2 WO2002009473 A2 WO 2002009473A2 IL 0100655 W IL0100655 W IL 0100655W WO 0209473 A2 WO0209473 A2 WO 0209473A2
Authority
WO
WIPO (PCT)
Prior art keywords
hearing aid
noise
temple
aid according
forwarding
Prior art date
Application number
PCT/IL2001/000655
Other languages
French (fr)
Other versions
WO2002009473A8 (en
WO2002009473A3 (en
Inventor
Raphael Rembrand
Jacob Aboody
Original Assignee
Tbtg.Int.Com Nv
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 Tbtg.Int.Com Nv filed Critical Tbtg.Int.Com Nv
Priority to AU2001282412A priority Critical patent/AU2001282412A1/en
Publication of WO2002009473A2 publication Critical patent/WO2002009473A2/en
Publication of WO2002009473A3 publication Critical patent/WO2002009473A3/en
Publication of WO2002009473A8 publication Critical patent/WO2002009473A8/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/57—Aspects of electrical interconnection between hearing aid parts
    • 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
    • H04R25/556—External connectors, e.g. plugs or modules
    • 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
    • H04R25/609—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of circuitry

Definitions

  • the present invention relates to a hearing aid.
  • a hearing aid in connection with the present invention means a device insertable into/or connectable to the ear or into/to any suitable instrument, e.g. a cellular phone or the like.
  • hearing aids There are known certain hearing aids. Most of the present hearing aids substantially enable the modification of the input signal by filtering out certain frequencies and by supporting high signals to noise ratios (S/N) in the amplifier being part of said hearing aids. Moreover, said hearing aids sometimes support directional amplification to reduce sources of noise outside the cone of attention.
  • S/N signals to noise ratios
  • Such a hearing aid should be relatively simple to design, to be insertable into/or connectable to the ear and to be located in a comfortable manner therein. Said hearing aid should be substantially easy to manufacture and not be too expensive.
  • the device according to the present invention When the device according to the present invention is to be used as a hearing aid proper, it uses the natural or synthetic "temple" noise as the filtering and amplification aid.
  • the amount of filtering and amplification aide applied is proportional to the speed of blood rushing in the "temple". Said amount may indirectly be measured by measuring the blood pressure or the body temperature.
  • Tempole in connection with the present invention means the bone structure of a temple per se, a combination of the temple with the cochlea and the cochlea per se.
  • the present invention thus consists in a hearing aid comprising: a. a device being a noise generator for forwarding a natural or a synthetic "temple" noise (as herein defined); b. a sound microphone; devices a. and b., each forwarding the noise to c. a mixer; said mixer being connected to d. an amplifier; said amplifier being connected to e. an ear phone; all devices being connected to each other by suitable connecting means.
  • the connecting means are preferably cables.
  • Said hearing aid may be manufactured and sold as one unit.
  • the various devices being parts of the hearing aide may be manufactured separately and assembled at a suitable place thus forming the hearing aid per se. It is well understood that the same may be part[s] of existing device[s] which parts are combined with the missing parts thus forming a hearing aid according to the present invention. Said possibilities are all within the scope of the present invention.
  • the device for forwarding the "temple” noise can be, for example: 1) when the "temple” noise is a synthetic one: a commercially available Otoacoustic Emmission recorder, e. g. Madsen Electronics- capella; or 2) when the "temple” noise is a natural one: a microphone such as a Shure TL 93 microphone located under a cup, the blood rush sound being captured for example in a computer, e.g. a laptop computer.
  • the software may be, for example, a Microsoft sound recorder (AVI) and the hardware IBM Think Pad 600 with MWAVE (Sound Blaster compatible sound card).
  • the hearing aid device is advantageously, when it is used a hearing aid proper, mounted on a chip.
  • the device being a noise generator for forwarding a natural or a synthetic "temple” noise may also comprise a pressure indicator.
  • the pressure indicator is a commercially available pressure indicator.
  • a computer may be used as noise generator.
  • Said device being a noise generator for forwarding a natural or a synthetic "temple” noise may also comprise a pressure transmitter, e.g. a handcuff type Digital Blood Pressure Monitor OMRON HEM-711. In this case the readings of the monitor are fed manually to the noise generator, e.g. a computer.
  • a pressure transmitter e.g. a handcuff type Digital Blood Pressure Monitor OMRON HEM-711.
  • the readings of the monitor are fed manually to the noise generator, e.g. a computer.
  • the natural or a synthetic "temple” noise may be obtained e.g. by recording naturally or synthetically the noise of the "temple".
  • this noise should be adapted to the ear.
  • the noise measured is that near the "temple" of the ear i.e. of the Otoacoustic Emmissions .
  • the pressure indicator indicates the differences in the "temple” noise.
  • the synthetic "temple” noise may e.g. be obtained and measured continuously by locating a microphone continuously in the ear or in the "temple”.
  • the output from the device being a noise generator for forwarding a natural or a synthetic "temple” noise is mixed with a sound microphone (device b), e.g. a Shure 16 A microphone.
  • the mixer used is, e.g., a MACKIE 1202VLZ Pro mixer. Mixer settings are preferably changed according to the listener but no frequency filtering has to be applied.
  • the output from the mixer is preferably fed to a "noise gate", if present, in order to provide an artificial threshold.
  • the noise gate mutes the input signal until the volume exceeds the pre-determined threshold. The moment the volume exceeds the threshold the gate is opened and the signal may pass through.
  • a "release” parameter which enables to specify how long the gate will remain open after the signal has dropped below the threshold level. This may be useful to keep the gate from chopping off the end of decaying notes in an "unmusical" way.
  • the threshold level may be set according to the special requirements of the user, e.g. -25dbV and the release between 0-500ms preferably at 330ms.
  • the hardware used may be, e.g. ELSYS 3630 Compressor/limiter/noise gate.
  • the threshold level which is a natural feature of the ear, is, when no noise gate is present, determined by the hearing difficulty of the ear. The more difficult the hearing, the higher is the threshold level. Thus the threshold level is adjusted in accordance with the hearing of the customer. The threshold level is determined by the hearing difficulty the person experiences.
  • the amplifier/speaker combination used with an earphone socket is, e.g. an ALTEC LANSING Multimedia and the earphone is e.g. VIVANCO SR 900.
  • the final hearing aid is a single chip fabrication, in which all components are mounted on a single Silicon chip.
  • the cables if used as connecting means are advantageously standard high quality coaxial microphone cables.
  • Fig. 1 shows one embodiment of a hearing aid according to the present invention
  • Fig. 2 shows another embodiment of a hearing aid according to the present invention.
  • Fig. 3 shows a further embodiment of a hearing aid according to the present invention.
  • the hearing aid shown in Fig. 1 comprises:
  • Laptop Computer 1 forming a noise generator and Sound Microphone 2 being both connected to Mixer 3.
  • Mixer 3 is connected to noise gate 4 which in turn is connected to amplifier 5.
  • Amplifier 5 is connected to Ear Phone 6.
  • the hearing aid shown in Fig. 2 comprises:
  • Pressure Indicator (PI) 7 is connected, via control cable 8, to noise generator 9.
  • Voice generator 9 and Sound Microphone 2 are both connected to Mixer 3.
  • Noise Gate 4, Amplifier 5 and EarPhone 6 are identical to those parts of Fig .1.
  • the hearing aid shown in Fig. 3 comprises:
  • Pressure Indicator 7 is connected in a similar manner as shown in Fig. 2 via control cable 8 to noise generator 9.
  • Noise generator 9 and Sound Microphone are connected to a combined Mixer/Amplifier device 10, which in turn is connected to Ear Phone 6.
  • this Hearing Aid which is an advantageous one does not comprise a Noise Gate and the Mixer and Amplifier form together one unit.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Headphones And Earphones (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The present invention relates to a hearing aid comprising a. a device being a noise generator for forwarding a natural or a synthetic 'temple' noise (as herein defined); b. a sound microphone; devices a. and b., each forwarding the noise to c. a mixer; said mixer being connected to d. an amplifier; said amplifier being connected to e. an ear phone; all devices being connected to each other by suitable connecting means.Said hearing aid may be a complete unit, being assembled from separate parts of the hearing aid or may be a combination of parts of existing devices and a combination with the other parts.

Description

A HEARING AID
The present invention relates to a hearing aid. (A hearing aid in connection with the present invention means a device insertable into/or connectable to the ear or into/to any suitable instrument, e.g. a cellular phone or the like.
There are known certain hearing aids. Most of the present hearing aids substantially enable the modification of the input signal by filtering out certain frequencies and by supporting high signals to noise ratios (S/N) in the amplifier being part of said hearing aids. Moreover, said hearing aids sometimes support directional amplification to reduce sources of noise outside the cone of attention.
However, these known hearing devices are not always satisfactory and many users complain that in some cases speech is not intelligible and the amplified sound is too noisy.
It has thus been desirable to design a hearing aid which would overcome the above disadvantages, i.e. it would have the natural characteristics of normal hearing. Such a hearing aid should be relatively simple to design, to be insertable into/or connectable to the ear and to be located in a comfortable manner therein. Said hearing aid should be substantially easy to manufacture and not be too expensive.
When the device according to the present invention is to be used as a hearing aid proper, it uses the natural or synthetic "temple" noise as the filtering and amplification aid. The amount of filtering and amplification aide applied is proportional to the speed of blood rushing in the "temple". Said amount may indirectly be measured by measuring the blood pressure or the body temperature.
"Temple" in connection with the present invention means the bone structure of a temple per se, a combination of the temple with the cochlea and the cochlea per se.
The present invention thus consists in a hearing aid comprising: a. a device being a noise generator for forwarding a natural or a synthetic "temple" noise (as herein defined); b. a sound microphone; devices a. and b., each forwarding the noise to c. a mixer; said mixer being connected to d. an amplifier; said amplifier being connected to e. an ear phone; all devices being connected to each other by suitable connecting means.
The connecting means are preferably cables.
Said hearing aid may be manufactured and sold as one unit.
However, the various devices being parts of the hearing aide may be manufactured separately and assembled at a suitable place thus forming the hearing aid per se. It is well understood that the same may be part[s] of existing device[s] which parts are combined with the missing parts thus forming a hearing aid according to the present invention. Said possibilities are all within the scope of the present invention.
Very often a noise gate is inserted between the mixer and the amplifier. However, in some instances the mixer and the amplifier may constitute one part. These possibilities are also within the scope of the present invention.
The device for forwarding the "temple" noise can be, for example: 1) when the "temple" noise is a synthetic one: a commercially available Otoacoustic Emmission recorder, e. g. Madsen Electronics- capella; or 2) when the "temple" noise is a natural one: a microphone such as a Shure TL 93 microphone located under a cup, the blood rush sound being captured for example in a computer, e.g. a laptop computer. The software may be, for example, a Microsoft sound recorder (AVI) and the hardware IBM Think Pad 600 with MWAVE (Sound Blaster compatible sound card). The hearing aid device, according to the present invention, is advantageously, when it is used a hearing aid proper, mounted on a chip.
The device being a noise generator for forwarding a natural or a synthetic "temple" noise may also comprise a pressure indicator. The pressure indicator is a commercially available pressure indicator. In this case a computer may be used as noise generator.
Said device being a noise generator for forwarding a natural or a synthetic "temple" noise may also comprise a pressure transmitter, e.g. a handcuff type Digital Blood Pressure Monitor OMRON HEM-711. In this case the readings of the monitor are fed manually to the noise generator, e.g. a computer.
The natural or a synthetic "temple" noise may be obtained e.g. by recording naturally or synthetically the noise of the "temple". Advantageously this noise should be adapted to the ear. The noise measured is that near the "temple" of the ear i.e. of the Otoacoustic Emmissions . The pressure indicator indicates the differences in the "temple" noise. The synthetic "temple" noise may e.g. be obtained and measured continuously by locating a microphone continuously in the ear or in the "temple".
The output from the device being a noise generator for forwarding a natural or a synthetic "temple" noise is mixed with a sound microphone (device b), e.g. a Shure 16 A microphone.
The mixer used is, e.g., a MACKIE 1202VLZ Pro mixer. Mixer settings are preferably changed according to the listener but no frequency filtering has to be applied.
The output from the mixer is preferably fed to a "noise gate", if present, in order to provide an artificial threshold. The noise gate mutes the input signal until the volume exceeds the pre-determined threshold. The moment the volume exceeds the threshold the gate is opened and the signal may pass through. Advantageously there is present a "release" parameter which enables to specify how long the gate will remain open after the signal has dropped below the threshold level. This may be useful to keep the gate from chopping off the end of decaying notes in an "unmusical" way. The threshold level may be set according to the special requirements of the user, e.g. -25dbV and the release between 0-500ms preferably at 330ms. The hardware used may be, e.g. ELSYS 3630 Compressor/limiter/noise gate.
The threshold level, which is a natural feature of the ear, is, when no noise gate is present, determined by the hearing difficulty of the ear. The more difficult the hearing, the higher is the threshold level. Thus the threshold level is adjusted in accordance with the hearing of the customer. The threshold level is determined by the hearing difficulty the person experiences.
Should the noise gate not be present the output from the mixer will be transferred directly to the amplifier.
The amplifier/speaker combination used with an earphone socket is, e.g. an ALTEC LANSING Multimedia and the earphone is e.g. VIVANCO SR 900.
Advantageously the final hearing aid is a single chip fabrication, in which all components are mounted on a single Silicon chip.
The cables if used as connecting means are advantageously standard high quality coaxial microphone cables.
The present invention will now be illustrated with reference to the accompanying drawings without being limited by them, (the parts being used are in particular those described herein). Similar or identical are being indicated by the same numerals. In said drawings:
Fig. 1 shows one embodiment of a hearing aid according to the present invention;
Fig. 2 shows another embodiment of a hearing aid according to the present invention; and
Fig. 3 shows a further embodiment of a hearing aid according to the present invention.
The hearing aid shown in Fig. 1 comprises:
Laptop Computer 1 forming a noise generator and Sound Microphone 2 being both connected to Mixer 3. Mixer 3 is connected to noise gate 4 which in turn is connected to amplifier 5. Amplifier 5 is connected to Ear Phone 6.
The various parts are connected to each other, as shown on the drawing, by suitable cables.
The hearing aid shown in Fig. 2 comprises:
Pressure Indicator (PI) 7, is connected, via control cable 8, to noise generator 9. Voice generator 9 and Sound Microphone 2 are both connected to Mixer 3. Noise Gate 4, Amplifier 5 and EarPhone 6 are identical to those parts of Fig .1.
The various parts are connected to each other also in this embodiment, as shown in the drawings, by suitable cables.
The hearing aid shown in Fig. 3 comprises:
Pressure Indicator 7, is connected in a similar manner as shown in Fig. 2 via control cable 8 to noise generator 9. Noise generator 9 and Sound Microphone are connected to a combined Mixer/Amplifier device 10, which in turn is connected to Ear Phone 6.
The various parts are connected to each other also in this embodiment, as shown in the drawing, by suitable cables.
As becomes apparent this Hearing Aid, which is an advantageous one does not comprise a Noise Gate and the Mixer and Amplifier form together one unit.

Claims

Claims
1. A hearing aid comprising: a. a device being a noise generator for forwarding a natural or a synthetic "temple" noise (as herein defined); b. a sound microphone; devices a. and b., each forwarding the noise to c. a mixer; said mixer being connected to d. an amplifier; said amplifier being connected to e. an ear phone; all devices being connected to each other by suitable connecting means.
2. A hearing aid according to Claim 1 , wherein said hearing aid is complete unit.
3. A hearing aid according to Claim 1, wherein said hearing aid is assembled from separate parts of the hearing aid.
4. A hearing aid according to Claim 1 , wherein some of the part[s] of the hearing aid are parts of existing device[s] which parts are combined with the missing parts.
5. A hearing aid according to Claims 1 or 2, wherein a noise-gate is inserted between the mixer and the amplifier.
6. A hearing aid according to Claim 1 , wherein the mixer and the amplifier constitute one part.
7. A hearing aid according to any of Claims 1 to 6, wherein the device being a noise generator for forwarding a natural "temple" noise is a microphone located under a cup, the bloodrush sound being captured into a computer.
8. A hearing aid according to Claim 7, wherein the computer is a laptop computer.
9. A hearing aid according to any of Claims 1 to 6, wherein the device being a noise generator for forwarding a synthetic "temple" noise is a commercially available Otoacoustic Emmission recorder.
10. A hearing aid according to Claims 1 to 9, wherein the device being a noise generator for forwarding a natural or a synthetic "temple" noise may also comprise a pressure indicator
11. A hearing aid according to Claim 1 or 10, wherein the device being a noise generator for forwarding a natural or a synthetic "temple" noise a pressure transmitter.
12. A hearing aid according to any of Claims 1 to 11 , in which the noise of the temple near the ear is recorded artificially.
13. A hearing aid according to any of Claims 1 to 12, in which a microphone is located continuously on the temple.
14. A hearing aid according to any of Claims 1 to 7 and 9 to 13, wherein all components are mounted on a single Silicon chip.
15. A hearing aid as defined in Claim 1 , substantially as herein defined with reference to the accompanying drawings.
PCT/IL2001/000655 2000-07-19 2001-07-17 A hearing aid WO2002009473A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001282412A AU2001282412A1 (en) 2000-07-19 2001-07-17 A hearing aid

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL13737300A IL137373A0 (en) 2000-07-19 2000-07-19 A hearing aid
IL137373 2000-07-19

Publications (3)

Publication Number Publication Date
WO2002009473A2 true WO2002009473A2 (en) 2002-01-31
WO2002009473A3 WO2002009473A3 (en) 2002-07-25
WO2002009473A8 WO2002009473A8 (en) 2004-04-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2001/000655 WO2002009473A2 (en) 2000-07-19 2001-07-17 A hearing aid

Country Status (3)

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AU (1) AU2001282412A1 (en)
IL (1) IL137373A0 (en)
WO (1) WO2002009473A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003063546A1 (en) * 2002-01-23 2003-07-31 Neat Ideas N.V. A hearing aid
EP1645164A2 (en) * 2003-05-20 2006-04-12 Neat Ideas N.V. Hearing aid
WO2012072141A1 (en) 2010-12-02 2012-06-07 Phonak Ag Portable auditory appliance with mood sensor and method for providing an individual with signals to be auditorily perceived by said individual
US9344817B2 (en) 2000-01-20 2016-05-17 Starkey Laboratories, Inc. Hearing aid systems
US20170195803A1 (en) * 2016-01-01 2017-07-06 Dean Robert Gary Anderson Audio systems, devices, and methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700912A1 (en) * 1993-01-26 1994-07-29 Stromboni Joseph Hearing aid
WO1999007302A1 (en) * 1997-08-07 1999-02-18 Natan Bauman Apparatus and method for an auditory stimulator
WO1999041938A2 (en) * 1998-02-13 1999-08-19 The University Of Iowa Research Foundation Speech processing system and method using pseudospontaneous stimulation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700912A1 (en) * 1993-01-26 1994-07-29 Stromboni Joseph Hearing aid
WO1999007302A1 (en) * 1997-08-07 1999-02-18 Natan Bauman Apparatus and method for an auditory stimulator
WO1999041938A2 (en) * 1998-02-13 1999-08-19 The University Of Iowa Research Foundation Speech processing system and method using pseudospontaneous stimulation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9344817B2 (en) 2000-01-20 2016-05-17 Starkey Laboratories, Inc. Hearing aid systems
US9357317B2 (en) 2000-01-20 2016-05-31 Starkey Laboratories, Inc. Hearing aid systems
WO2003063546A1 (en) * 2002-01-23 2003-07-31 Neat Ideas N.V. A hearing aid
EP1645164A2 (en) * 2003-05-20 2006-04-12 Neat Ideas N.V. Hearing aid
EP1645164A4 (en) * 2003-05-20 2010-12-08 Neat Ideas N V Hearing aid
WO2012072141A1 (en) 2010-12-02 2012-06-07 Phonak Ag Portable auditory appliance with mood sensor and method for providing an individual with signals to be auditorily perceived by said individual
US20170195803A1 (en) * 2016-01-01 2017-07-06 Dean Robert Gary Anderson Audio systems, devices, and methods
US10142742B2 (en) * 2016-01-01 2018-11-27 Dean Robert Gary Anderson Audio systems, devices, and methods
US10798495B2 (en) 2016-01-01 2020-10-06 Dean Robert Gary Anderson Parametrically formulated noise and audio systems, devices, and methods thereof
US10805741B2 (en) 2016-01-01 2020-10-13 Dean Robert Gary Anderson Audio systems, devices, and methods

Also Published As

Publication number Publication date
IL137373A0 (en) 2001-07-24
WO2002009473A8 (en) 2004-04-29
WO2002009473A3 (en) 2002-07-25
AU2001282412A1 (en) 2002-02-05

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