Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
1997-04-03
2001-01-30
Le, Huyen (Department: 2743)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S328000, C381S330000, C381S384000
Reexamination Certificate
active
06181801
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an open ear canal earpiece, and more particularly to an open ear canal earpiece which is capable of communicating with external electronic devices via a wired link.
2. State of the Art
The communications industry has been in a rapid growth state for the past decade. The result of such growth has been the proliferation of two-way communications systems, e.g. telephones, cellular phones, and computer networks, and thus the ability to contact someone when they are away from the house or the office. Hands free methods of communicating often include a headset with a boom microphone. The headset can either have one or two earpieces which fit over the ear and a boom mike which is attached to the earpiece assembly and extends out toward the user's mouth. The headset is either secured by resting on the user's head or is secured by being attached behind the user's ear. The problem with this assembly is that it is cosmetically unattractive and uncomfortable to wear for long periods of time. Furthermore, it is large, highly visible, cumbersome, and unsuitable for hands free operation while driving, walking, or even running.
Another problem with the traditional headset and boom mike assemblies is that these assemblies do not modify the voice signals in the earpiece so as to allow for the correction of various hearing impairments. Conventional hearing aids are typically employed that are configured to fit either behind the ear or in the ear. Through various signal processing techniques, sounds to be delivered to the ear are processed to facilitate and optimize the hearing of the user throughout the usable audible frequency range. However, these devices block the ear canal so that little or no sounds reach the ear in a natural, unaided manner. Furthermore, such devices have drawbacks, such as feedback, when used with communication devices such as telephones.
Conventional hearing aids generally provide adequate processing throughout the entire speech frequency range for most hearing impairments. However, these types of devices are not optimal for people having mild hearing losses for a number of reasons. Conventional hearing aids can unnecessarily amplify loud sounds so that these sounds become uncomfortable and annoying to the mild hearing loss users. In many hearing aids, such loud sounds are also distorted by the sound processing circuitry, significantly reducing the intelligibility of speech or the quality of other sounds. In addition, these types of hearing aids often introduce phase shifts to received sounds, resulting in a reduction of the user's ability to localize sound sources. These hearing aids can therefore degrade certain sounds that the mild hearing loss user could otherwise hear adequately without any aid. Conventional hearing aid systems cause a problem known as the occlusion effect. The occlusion effect is the increased loudness of low frequency sounds due to transmission of sound by tissue conduction when the ear canal is blocked and air conduction is impeded, resulting in sounds which are both unnatural and uncomfortable for the user. Additionally, these hearing aids are overly complicated and burdensome to users having mild hearing losses.
Thus, there is a need for an earpiece which is unobtrusive, less noticeable by the wearer, less visible to others, cosmetically attractive, which is suitable for both hearing impairment and communications industries, and which does not block the entire ear canal of the user.
SUMMARY OF THE INVENTION
The present invention is directed to an earpiece which can be used by hearing impaired and non-hearing impaired users to communicate with external devices, e.g., landline and wireless communication networks. Exemplary embodiments of a communications earpiece in accordance with the present invention comprise an ear canal tube sized for positioning in an ear canal of a user so that the ear canal is at least partially open for directly receiving ambient sounds without amplification. A sound processor is also provided to process the received ambient sounds to produce processed signals. A bidirectional wired connector connects the earpiece to external devices, with the processed signals produced by the sound processor being sent to the external devices through the connector and with signals from the external device being sent to the earpiece through the connector. The signals sent from the external devices to the earpiece are supplied to a speaker in the earpiece. The received and processed signals can also be used to create noise cancellation and/or enhance the use of the earpiece as a communications product.
According to an alternate embodiment, the communications earpiece is configured to fit entirely in the ear canal wherein the ear canal is at least partially open for receiving ambient sounds.
REFERENCES:
patent: 2874231 (1959-02-01), Wallace
patent: 3068954 (1962-12-01), Stralkowski
patent: 3209080 (1965-09-01), Guttner et al.
patent: 3278912 (1966-10-01), Waldhauer
patent: 4291203 (1981-09-01), Bellafiore
patent: 4471171 (1984-09-01), Kopke
patent: 5031219 (1991-07-01), Ward et al.
patent: 5278912 (1994-01-01), Waldhauer
patent: 5369711 (1994-11-01), Williamsons, III
patent: 5395168 (1995-03-01), Leenen
patent: 5404407 (1995-04-01), Weiss
patent: 5452361 (1995-09-01), Jones
patent: 5479522 (1995-12-01), Lindemann et al.
patent: 5572594 (1996-11-01), Devoe et al.
patent: 5613222 (1997-03-01), Guenther
patent: 5712917 (1998-01-01), Offutt
patent: 5721783 (1998-02-01), Anderson
patent: 5796821 (1998-08-01), Crouch et al.
patent: 5812680 (1998-09-01), Clendon
patent: 6021207 (2000-02-01), Puthuff et al.
Pluvinage Vincent
Puthuff Steven H.
Taenzer Jon C.
Burns Doane Swecker & Mathis L.L.P.
Le Huyen
ReSound Corporation
LandOfFree
Wired open ear canal earpiece does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wired open ear canal earpiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wired open ear canal earpiece will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2490719