Telephonic communications – Terminal accessory or auxiliary equipment
Patent
1987-12-24
1989-04-18
Ng, Jin F.
Telephonic communications
Terminal accessory or auxiliary equipment
379 52, 379447, 379450, H04M 100, H04M 1100
Patent
active
048233846
ABSTRACT:
A telephone accessory for use by hearing impaired individuals wearing hearing aids which enables a conventional telephone to be used without causing annoying feedback. The telephone accessories include a deeply-dished ear horn portion which reduces feedback problems since the sound reflective surfaces of the ear horn are displaced some distance from the hearing aid microphone. Various embodiments of this invention are described including alternate means for retaining the device attached to a telephone handset, and several embodiments disclosing means for varying the depth of the ear horn cup to suit an individual user.
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Hearing Instruments, vol. 37, No. 6, 1986, p. 37-Telephone Coupler.
Lewis Bonita F.
Lindsay H. Industries, Inc.
Ng Jin F.
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