Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5923764 | Virtual electroacoustic audiometry for unaided simulated aided, and aided hearing evaluation A hearing evaluation and hearing aid fitting system provides a fully immersive three-dimensional acoustic environment to evaluate unaided, simulated aided, and aided hearing function of an individual. Digital filtering of signal sources representing speec... | 07/13/1999 |
| 5757935 | Audio listening device for the hearing impaired An audio listening device includes a circuit for amplifying sound source signals and a mechanism including a bone conduction vibrator transforming an output signal of the amplifying circuit into a vibration. A vibration source transforms the output of the... | 05/26/1998 |
| 5717818 | Audio signal storing apparatus having a function for converting speech speed The speed of an input speech is changed without any change of the pitch of the input speech. Raw data of a speech are stored so that the speed of the speech can be modulated continuously on the basis of the raw data of the speech. In the speech speed conv... | 02/10/1998 |
| 5479522 | Binaural hearing aid This invention relates to a hearing enhancement system having an ear device for each of the wearer's ears, each ear device has a sound transducer, or microphone, and a sound reproducer, or speaker, and associated electronics for the microphone and speaker... | 12/26/1995 |
| 5434924 | Hearing aid employing adjustment of the intensity and the arrival time of sound by electronic or acoustic, passive devices to improve interaural perceptual balance and binaural processing A hearing aid for a person with asymmetric hearing perception (a weaker ear system and a better ear system) employs conventional frequency-selective amplification (26L) of sound coming to the weaker ear's system and frequency selective amplitude adjustmen... | 07/18/1995 |
| 5404407 | Programmable hearing aid unit A programmable hearing aid is provided with a programming socket. A space-saving arrangement of switch elements is provided wherein a switch element for switching the hearing aid on/off, an MTO switch, a volume control, a tone control, a situation switch ... | 04/04/1995 |
| 5386476 | Locking device for a hearing aid battery chamber A device for a battery chamber (2) in a hearing aid (1) with replaceable battery (3) comprises a locking device for blocking the battery chamber. The locking device comprises a displaceable pin, which can be maneuvered through an opening (7) in the batter... | 01/31/1995 |
| 5381484 | Hearing aid with pull-out-string, pull-out string, and method of making a hearing aid A pull-out string for connection to a hearing aid which is constructed for use in an ear canal near a tympanic membrane. The pull out string has two ends and a fixing element at each end for connection to the hearing aid. The pull-out string has a plurali... | 01/10/1995 |
| 5289544 | Method and apparatus for reducing background noise in communication systems and for enhancing binaural hearing systems for the hearing impaired Directional hearing in noisy environments is enhanced using small conventional microphones. In one embodiment a conventional first order bidirectional gradient microphone is employed in connection with a barrier to produce sound shadow at the rearward end... | 02/22/1994 |
| 5220612 | Non-occludable transducers for in-the-ear applications An in-the-ear electroacoustic transducer is constructed to limit the effect of accretion of cerumen on acoustically active surfaces: to prevent cerumen from plugging passages for acoustical energy to the tympanic membrane and to facilitate the removal of ... | 06/15/1993 |
| 4845757 | Circuit for recognizing oscillations in a useful signal due to feedback between acoustic input and output transducers A circuit arrangement for suppressing oscillations, such as acoustic feedback in a hearing aid, has a circuit which recognizes the presence of oscillations in a useful signal, an oscillatory frequency search circuit, and an oscillation modifying circuit c... | 07/04/1989 |
| 4802228 | Amplifier filter system for speech therapy Am amplifier filter system for speech therapy applications. This apparatus combines a direct channel amplifier and two band pass filter amplifiers such that selected phonemes (speech sounds) of the spoken word can be enhanced so that a speaker can be taug... | 01/31/1989 |
| 4777474 | Alarm system for the hearing impaired The present invention is an alarm for the hearing impaired. A base station includes alarm receiving circuits for receipt of alarm signals. These alarm signals could be a telephone ringing signal, a smoke/fire alarm, a doorbell signal or the like. Upon det... | 10/11/1988 |
| 4763752 | Mount for a sound transducer, particularly an earphone A sound transducer, particularly an earphone, is buttoned into a sound opening of an in-the-ear hearing aid housing by means of an elastic hose part seated on a sound connector of the sound transducer. The elastic hose part is slightly pre-stressed in lon... | 08/16/1988 |
| 4637402 | Method for quantitatively measuring a hearing defect A method is described for measuring the hearing deficit of a person preparatory to providing a hearing aid designed in accordance with analysis of the deficit, wherein frequency bands over which hearing level is unacceptable are determined, the bands are ... | 01/20/1987 |
| 4633498 | Infrared headphones for the hearing impaired An infrared headphone with supplemental microphones to aid the hearing impaired allowing the user to hear the significant sounds from the ambient surroundings. In order to suppress the sound intensity of the user's own voice the invention provides for mic... | 12/30/1986 |
| 4531229 | Method and apparatus for improving binaural hearing A method and apparatus for improving binaural auditory response for the hearing impaired employs a console in which two microphones are mounted flush with the top surface of the console to eliminate pick up of surface reflections and in which the micropho... | 07/23/1985 |
| 4449018 | Hearing aid Apparatus is described for restoring the original comprehension of sounds reaching a human ear, including direction, elevation and frequency. An enclosure surrounds the pinna of the ear to substantially exclude exterior sounds. First and second speakers a... | 05/15/1984 |
| 4441576 | Nonlinear passive acoustic filtering In an ear muff intended for protection against excessive noise exposure, the passive means according to this invention automatically and continuously varies the amount of reduction provided for the sound arriving at the ear of the wearer; it retains subst... | 04/10/1984 |
| 4309575 | Apparatus for intercranial transmission of audio signals An apparatus for intercranial transmission of a plurality of audio signals in which a pair of transducers are independently mounted on a headband for transmitting audio signals from a source to the cranium. The apparatus is comprised of two parallel wires... | 01/05/1982 |
| 4259547 | Hearing aid with dual pickup A conventional hearing aid for a hard-of-hearing person has a microphone input for sensing sounds or voice communication. In a high noise environment, a somewhat remotely located speaker wishing to communicate with the person talks into a microphone input... | 03/31/1981 |
| 4181818 | Personal amplifier system A personal amplifier system wherein sound attenuating ear defenders provided with earphones ideally exclude all airborne sound and permit only electronically reproduced sound to be heard. A pair of spaced microphones are coupled to the earphones through a... | 01/01/1980 |
| 3985960 | Stereophonic sound reproduction with acoustically matched receiver units effecting flat frequency response at a listener's eardrums A binaural sound recording and reproduction system which utilizes a recording mannequin equipped with an electroacoustic model of the human auditory tract to thereby record the sound pressure which would be incident on a listener's eardrum and also utiliz... | 10/12/1976 |
