CA2008624C - Tri-select hearing assist - Google Patents
Tri-select hearing assistInfo
- Publication number
- CA2008624C CA2008624C CA 2008624 CA2008624A CA2008624C CA 2008624 C CA2008624 C CA 2008624C CA 2008624 CA2008624 CA 2008624 CA 2008624 A CA2008624 A CA 2008624A CA 2008624 C CA2008624 C CA 2008624C
- Authority
- CA
- Canada
- Prior art keywords
- sound
- radio
- earphones
- earphone
- hearing impaired
- 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 - Fee Related
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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- 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
- H04R25/40—Arrangements for obtaining a desired directivity characteristic
- H04R25/407—Circuits for combining signals of a plurality of transducers
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Neurosurgery (AREA)
- Headphones And Earphones (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
A plug-in control box to TV or radio (2-pole, 3-position rotary switch, non-shorting) is capable of providing sound from TV or radio speakers, earphones alone, or speakers and earphones together. In the speaker position, the sound level is adjusted for general surroundings. In the earphone position, the TV/radio speaker sound is omitted. If necessary, the earphone level can be further adjusted to suit the earphone listener.
In speaker and earphone position, the TV/radio sound can be adjusted if necessary, and the earphone sound separately.
These settings are for normal hearing.
The big feature of this invention is provision for the hearing impaired.
An amplifier, built into the control box, provides the mixture of TV/radio sound and ambient sound, through a plug-in microphone.
Both sound levels can be adjusted separately, to suit the hearing impaired (i.e. ambient sound, phone, doorbell, conversations, etc.) When using plug-in earphones to TV/radio, the speakers are cut off. There is no external sound for those who wish to participate.
The hearing impaired are completely cut off from the outside world. The purpose of this invention is to give the hearing impaired opportunity of enjoying TV/radio sound and ambient sound without disrupting other persons about.
In speaker and earphone position, the TV/radio sound can be adjusted if necessary, and the earphone sound separately.
These settings are for normal hearing.
The big feature of this invention is provision for the hearing impaired.
An amplifier, built into the control box, provides the mixture of TV/radio sound and ambient sound, through a plug-in microphone.
Both sound levels can be adjusted separately, to suit the hearing impaired (i.e. ambient sound, phone, doorbell, conversations, etc.) When using plug-in earphones to TV/radio, the speakers are cut off. There is no external sound for those who wish to participate.
The hearing impaired are completely cut off from the outside world. The purpose of this invention is to give the hearing impaired opportunity of enjoying TV/radio sound and ambient sound without disrupting other persons about.
Description
DISCLOSURE
It is common knowledge that hearing impaired persons tend to need higher volume to assist discrimination particularly when using entertainment systems. This has been especially evident at home: My wife has mild hearing loss and wears an aid. It is also known that these aids, however sophisticated, do not completely compensate for this deficiency.
Having been in touch with others, more severely hearing impaired, I came to realize the extent of the problems.
This has influenced my design.
These problems have been addressed by using a plug-in control box to TV/radio audio. Audio and ambient sound, through a plug-in microphone, are mixed together and adjusted separately to suit the hearing impaired.
~.r~
Figure 1 Block l)iagram Figure 2 Circuit Diagram Figure 3 Stereo Jack Diagram Figure 1 Block Diagram A block diagram showing the control box and external essentials. This shows audio from TV/radio unit 1 plugged into control box unit 2, audio from control box to speakers unit 3. Then audio to earphones, unit 4 (normal hearing).
TV/radio audio urlit 1, to amplifier in control box unit 2, mixed with ambient sounds from plug-in microphone unit 5, amplifier audio fed to earphones (llearing impaired) unit 6.
Figure 2 Circuit Diagram 'Speakers alone' TV/radio audio fed through pin 2 stereo jack and plug to pole B, (2-pole, 3-position rotary switch) to pin 4, pin 1 to pole A, then stereo plug to jack pin 5 to audio speaker.
'Earphones alone' Normal ~learing TV audio fed through the same channels as above, but not return loop. ~arphones connected through 10k, 47 mf cap.
from pin 5 rotary switch.
'Earphones alone' Impaired Hearing The audio follows above pattern to pin 5 (rotary switch), then directed to an audio amplifier where audio and ambient sounds are mixed together and amplified. The ambient sound is injected through a microphone and mixed with normal audio TV/radio. Sound is fed to earphones for the hearing impaired. Normal and ambient sounds can be adjusted separately.
'Speakers and earphone together' Operation same as above. When in position for above, pin 5 and 6 are connected together, creating return loop for TV/radio audio, earphones, regular hearing and amplifier for impaired hearing.
It is common knowledge that hearing impaired persons tend to need higher volume to assist discrimination particularly when using entertainment systems. This has been especially evident at home: My wife has mild hearing loss and wears an aid. It is also known that these aids, however sophisticated, do not completely compensate for this deficiency.
Having been in touch with others, more severely hearing impaired, I came to realize the extent of the problems.
This has influenced my design.
These problems have been addressed by using a plug-in control box to TV/radio audio. Audio and ambient sound, through a plug-in microphone, are mixed together and adjusted separately to suit the hearing impaired.
~.r~
Figure 1 Block l)iagram Figure 2 Circuit Diagram Figure 3 Stereo Jack Diagram Figure 1 Block Diagram A block diagram showing the control box and external essentials. This shows audio from TV/radio unit 1 plugged into control box unit 2, audio from control box to speakers unit 3. Then audio to earphones, unit 4 (normal hearing).
TV/radio audio urlit 1, to amplifier in control box unit 2, mixed with ambient sounds from plug-in microphone unit 5, amplifier audio fed to earphones (llearing impaired) unit 6.
Figure 2 Circuit Diagram 'Speakers alone' TV/radio audio fed through pin 2 stereo jack and plug to pole B, (2-pole, 3-position rotary switch) to pin 4, pin 1 to pole A, then stereo plug to jack pin 5 to audio speaker.
'Earphones alone' Normal ~learing TV audio fed through the same channels as above, but not return loop. ~arphones connected through 10k, 47 mf cap.
from pin 5 rotary switch.
'Earphones alone' Impaired Hearing The audio follows above pattern to pin 5 (rotary switch), then directed to an audio amplifier where audio and ambient sounds are mixed together and amplified. The ambient sound is injected through a microphone and mixed with normal audio TV/radio. Sound is fed to earphones for the hearing impaired. Normal and ambient sounds can be adjusted separately.
'Speakers and earphone together' Operation same as above. When in position for above, pin 5 and 6 are connected together, creating return loop for TV/radio audio, earphones, regular hearing and amplifier for impaired hearing.
Claims (2)
1. A switching device for distributing and mixing audio inputs with ambient sound for delivery to the hearing impaired, consisting of:
adjustable amplifier means for delivering an input to sound reproducing means for the hearing impaired, adjustable ambient sound detecting means for providing one input to the said amplifying means, switching means for connecting the sound output from an entertainment system to the system speaker, to the speaker and earphones in parallel, or to the earphones while also providing a second input to the amplifier; thus allowing sound from the entertainment system to be mixed with ambient sound for use by the hearing impaired while maintaining the reproduction of sound via the system speaker and/or separate earphones.
adjustable amplifier means for delivering an input to sound reproducing means for the hearing impaired, adjustable ambient sound detecting means for providing one input to the said amplifying means, switching means for connecting the sound output from an entertainment system to the system speaker, to the speaker and earphones in parallel, or to the earphones while also providing a second input to the amplifier; thus allowing sound from the entertainment system to be mixed with ambient sound for use by the hearing impaired while maintaining the reproduction of sound via the system speaker and/or separate earphones.
2. The device of Claim 1 including means to allow sound reproduction by the system speakers when the switching means routes the entertainment system output to the amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2008624 CA2008624C (en) | 1990-01-26 | 1990-01-26 | Tri-select hearing assist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2008624 CA2008624C (en) | 1990-01-26 | 1990-01-26 | Tri-select hearing assist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2008624A1 CA2008624A1 (en) | 1991-07-26 |
| CA2008624C true CA2008624C (en) | 1994-05-24 |
Family
ID=4144132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2008624 Expired - Fee Related CA2008624C (en) | 1990-01-26 | 1990-01-26 | Tri-select hearing assist |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2008624C (en) |
-
1990
- 1990-01-26 CA CA 2008624 patent/CA2008624C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2008624A1 (en) | 1991-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |