Patent Application
20080123884
The present invention relates generally to passive hearing aid devices, more particularly to a passive hearing aid device with sound dampening material incorporated to eliminate extraneous sound contamination. The present invention is primarily directed toward enhancing the auditory experience of persons in music halls, concerts or lectures, where the auditory signals are focused toward the listener, however, the invention may be employed to enhance a user's listening capabilities in other listening environments as well.
Passive listening devices are well known in the art. Although there are electronic means for amplifying sound waves for a hearing-impaired person, the electronics utilized often introduce extraneous background noise along with the intended signal for amplification. Electronic devices are also expensive for occasional use by persons having normal hearing capabilities. Hearing horns or trumpets were developed very early, but tended to produce a propagation of standing waves in the chamber, causing distortions to the sound waves amplified. These devices are generally inserted into the ear canal and are cumbersome to use. Later devices introduce reflectors intended to either focus sound waves into the ear or provide a larger collection area for sound waves.
U.S. Pat. No. 1,1761,666, to Hinternesch, describes a casing devised to be placed upon the ear of an individual, comprising intake and discharge ends for condensing the sound waves. The structure disclosed to condense the sound waves is a centripetal air passage.
U.S. Pat. No. 4,768,613, to Brown, discloses a pair of reflectors to be supported behind the ears as to increase the effective area of the outer ear and reflect an increased amount of sound energy into the user's ears.
U.S. Pat. No. 5,020,629, to Edmundson, et al., describes a listening enhancement device in which a flat body with an ear hook can be converted to a sound gathering device by engagement of a fastener system located on the body of the device.
U.S. Pat. No. 4,997,056, to Riley, discloses an acoustic device for mechanically reflecting sound waves into the ear in an undistorted and directionally selective manner has a pair of movable acoustic reflectors constructed, configured and mounted to preserve accurately phase, frequency and image information in the sound waves of interest to the front of the user, secured to a headband or helmet in positions that place the focal points of the reflectors beyond the base of the lenses within the user's ear.
While each of these inventions describes an apparatus for either focusing or collecting sound waves, and improves the comfort of the attachment of the device to the user, none incorporate the utilization of sound dampening material to exclude sound from outside of the focus of the device. What is needed is a passive hearing aid device that provides improved sound wave collection and incorporates materials intended to dampen unwanted background sound.
The foregoing patents and prior art devices reflect the current state of the art of which the present inventor is aware. Reference to, and discussion of, these patents is intended to aid in discharging Applicant's acknowledged duty of candor in disclosing information that may be relevant to the examination of prospective claims to the present invention. However, it is respectfully submitted that none of the above-indicated patents disclose, teach, suggest, show, or otherwise render obvious, either singly or when considered in combination, the invention described herein.
The present invention is a passive hearing aid device that mechanically receives a greater amount of directional acoustic waves than an unaided ear, and that mechanically reflects sound waves into the user's ear or ears without distortion.
It is a further object of this invention to provide a means for reducing interference from background noise through the utilization of sound damping materials in the construction of the device.
It is still a further object of this invention to provide a comfortable interface between the present invention and the user through the use of padding material in the sound reflectors and, through the use of material maintaining a shape memory in a head band for mounting the reflectors to the user's head.
It is yet another object of this invention to utilize the padding material between the sound reflectors and the user's head to trap sound waves within the sound reflectors.
It is still another object of this invention to provide an area for advertising or logos on the head band.
The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawing wherein:
Referring to
The above disclosure is sufficient to enable one of ordinary skill in the art to practice the invention, and provides the best mode of practicing the invention presently contemplated by the inventor. While there is provided herein a full and complete disclosure of the preferred embodiments of this invention, it is not desired to limit the invention to the exact construction, dimensional relationships, and operation shown and described. Various modifications, alternative constructions, changes and equivalents will readily occur to those skilled in the art and may be employed, as suitable, without departing from the true spirit and scope of the invention. Such changes might involve alternative materials, components, structural arrangements, sizes, shapes, forms, functions, operational features or the like.
