CN1074578A - Frequency-converting deaf-aid set - Google Patents
Frequency-converting deaf-aid set Download PDFInfo
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- CN1074578A CN1074578A CN 92100065 CN92100065A CN1074578A CN 1074578 A CN1074578 A CN 1074578A CN 92100065 CN92100065 CN 92100065 CN 92100065 A CN92100065 A CN 92100065A CN 1074578 A CN1074578 A CN 1074578A
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- hearing
- frequency
- deaf
- converting
- conversion
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Abstract
A kind of frequency-converting deaf-aid set, its technical characterictic are to utilize digital technology with the speech signal frequency conversion.Its effect is that the severe deafness patient with the hearing heavy losses listens the language message beyond the territory to move in its tin territory, allows the deaf person utilize the sense of hearing of its remaining compensatory its loss of the sense of hearing, increases the detecting impedence to language message, thereby reaches the purpose of improving hearing.Be applicable to the severe deafness patient of hearing heavy losses.
Description
The present invention relates to a kind of auditory prosthesis, particularly a kind of frequency conversion type hearing aids.
Existing hearing aids kind is a lot, be broadly divided into boxlike, hard of hearing formula, duct-type, inner ear type etc. by its formal classification, but in any shape its operation principle is basic identical, promptly speech signal is directly amplified.The mechanism of action of these hearing aidss is to be based upon the patient at full-language characteristic frequency spectrum section (300Hz～3KHz) all will have on the basis of certain hearing, thereby only to slight and the moderate deaf person is effective, and the severe deaf person of hearing heavy losses is had little effect or invalid.
Purpose of the present invention is exactly for overcoming the shortcoming that existing hearing aids can not be applicable to the severe deafness patient, providing a kind of special-purpose hearing aids that the severe deafness patient is suitable for.
For achieving the above object, the present invention has designed a frequency-conversion processing device.Its operation principle is: at first the speech signal analog quantity is carried out the A/D conversion: then the digital quantity of the characteristic language characteristic information after the conversion is handled, made under the prerequisite that keeps the original language signal characteristic information, change its frequency; Again the digital quantity after handling is done the D/A conversion at last, be reduced to analog quantity; After general amplifying circuit amplifies, drive the earphone playback again.
Because the present invention has added the frequency-conversion processing device, can be moved into the unheard language feature information of the severe deaf person of hearing heavy losses within its tin territory, make it utilize the remaining sense of hearing to come the sense of hearing of compensatory loss, increase detecting impedence, thereby reach the purpose of improving hearing language message.Owing in the frequency-conversion processing device, adopt the digital processing mode, can change the frequency conversion ratio very flexible, easily in addition, make hearing aids bigger adaptability be arranged the different hearing loss situation of severe deafness patient.
Now provide accompanying drawing, and come the present invention is illustrated with most preferred embodiment.Accompanying drawing is the functional-block diagram of embodiment.
The embodiment operation principle is as follows: speech signal enters preamplifier 2 from microphone 1, sends into A/D converter 3 after 2 amplifications, and speech signal is carried out the A/D conversion.Data after the conversion are sent into eprom memory 6 or 7 by read/write channel circuit 4 and 5 determined data channel.6 and 7 is to take the cycle alternate mode, promptly in certain cycle if 6 be in read states, then 7 are in the state of writing, and then 6 are in the state of writing to next cycle, 7 are in read states.Its conversion is by periodic signal generator 8 controls.Memory 6 and 7 address are provided by address generator 9 and 10.9 and 10 clock is supplied with by clock switch circuit 11, and 11 controlled by 8 periodic signal.12 is the doubleclocking generator, produces f
1And f
2Two kinds of frequency signals.f
1And f
2Under 8 controls, give 9 and 10 respectively, produce 6 and 7 required address signals by 9 and 10 by 11.Because 6 is to produce under different frequencies with 7 address signal, so the speed difference of read and write.If the speed of reading greater than the speed of writing, then makes the speech signal frequency raise; If the speed of writing greater than the speed of reading, then makes the speech signal frequency reduce.Data after the frequency conversion are transformed to analog quantity by D/A converter 13, are amplified by amplifier 14 again, promote earphone 15 playbacks.
The foregoing description just is used for narrating the present invention better, but the present invention is not as limit.Those skilled in the art that might propose other different schemes.Essence technology contents of the present invention should be by the described summary of claim.
Claims (2)
1, a kind of suitable hearing heavy losses severe deafness patient's special-purpose hearing aids is made up of importation, signal processing, output and power unit, it is characterized in that: added the frequency-conversion processing device in signal processing.
2, according to the said frequency-conversion processing device of claim 1, its special card is: the speech signal analog quantity is transformed to digital quantity through the A/D converter, carries out frequency-conversion processing with the digital processing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100065 CN1028277C (en) | 1992-01-14 | 1992-01-14 | Frequency-converting deaf-aid set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100065 CN1028277C (en) | 1992-01-14 | 1992-01-14 | Frequency-converting deaf-aid set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074578A true CN1074578A (en) | 1993-07-21 |
| CN1028277C CN1028277C (en) | 1995-04-19 |
Family
ID=4938336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100065 Expired - Fee Related CN1028277C (en) | 1992-01-14 | 1992-01-14 | Frequency-converting deaf-aid set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028277C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496420B (en) * | 2005-06-08 | 2012-06-20 | 加利福尼亚大学董事会 | Methods, devices and systems using signal processing algorithms to improve speech intelligibility and listening comfort |
-
1992
- 1992-01-14 CN CN 92100065 patent/CN1028277C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496420B (en) * | 2005-06-08 | 2012-06-20 | 加利福尼亚大学董事会 | Methods, devices and systems using signal processing algorithms to improve speech intelligibility and listening comfort |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1028277C (en) | 1995-04-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |