William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8055007 | Earphone having variable duct unit An open-air type earphone having a duct that communicates between an inside and an outside of the earphone and applies an inductance component to an acoustic signal generated by an electroacoustic transducer. The earphone includes the electroacoustic transducer to c... | 11/08/2011 |
| 7916888 | In-ear headphones An earphone includes a first acoustic chamber including a reactive element and a resistive element in parallel, a second acoustic chamber separated from the first acoustic chamber by an acoustic transducer, and a housing to support the apparatus from the concha of a... | 03/29/2011 |
| 7791877 | Portable apparatus incorporating a sound output device A portable apparatus includes a display housing, a main housing, and a sound output device. The display housing has a pivot side. The main housing includes a pivot portion that defines a pivot axis and that is coupled to the pivot side of the display housing such th... | 09/07/2010 |
| 7697710 | Earphone with a sound guiding tube An earphone with a sound guiding tube is provided. The sound guiding tube has an external chamber beside the ear. Compared with a conventional earphone which transmits sound directly into the ear, the earphone of the present invention has a external chamber which fo... | 04/13/2010 |
| 7548629 | Earpiece adapter for an earphone or a headphone An adapter for connection to an earphone or headphone having a speaker which is housed in a relatively rigid casing utilizes an elongated hollow body having two open ends. One open end of the body is adapted to be positioned about the relatively rigid speaker casing... | 06/16/2009 |
| 7499562 | Virtual multi-channel speaker unit Disclosed is a virtual multi-channel speaker unit, comprising a casing having a transmission portion through which sounds pass; a solenoid coil arranged in the casing and applied with acoustic signals; a magnetic body around which the solenoid coil is wound to form ... | 03/03/2009 |
| 7412068 | Otoplasty for behind-the-ear (BTE) hearing aids An otoplastic for production of behind-the-ear hearing aids. The hearing aid includes a preferably flexible signal conductor, such as e.g. an acoustic tube positioned in the auditory canal, whereby the otoplastic matches the individual anatomy of the patient and its... | 08/12/2008 |
| 7359525 | Multi-function microphone boom with on-line indicator A headset microphone boom that includes a hollow tubular member with a reflective interior surface. A light disperser is coupled to the hollow tubular member at one end and a light emitting device is coupled to the hollow tubular member at the other end. Light is tr... | 04/15/2008 |
| 7349547 | Noise masking communications apparatus A communications headset with a movable microphone boom that extends to different distances from the mouth, where the movement of the boom operates electrical, mechanical or acoustic means to adjust the transmit and/or receive sensitivity of the headset. ... | 03/25/2008 |
| 7292704 | Noise attenuating headset Systems and techniques are disclosed for a headset that may be used in an audio system used in a magnetic field. In one aspect, the system includes an inner set portion adapted to fit into an ear canal. A pneumatic port is disposed in the hole to couple audible soun... | 11/06/2007 |
| 7289641 | Multiple channel earphone A multiple channel earphone is provided with an external tube disposed on the earphone main body. The earphone includes a case, a case extension unit, and a cover. A main sound field is formed in an interior chamber enclosed by the case, the case extension unit and ... | 10/30/2007 |
| 7256347 | Cord control and accessories having cord control for use with portable electronic devices A control cord for connecting an auxiliary device to a portable electronic device is provided. The control cord includes a flexible longitudinal housing and a plurality of electrical conductors extending from one end of the housing to which the auxiliary device will... | 08/14/2007 |
| 7243378 | Modular helmet A helmet for protecting the head having a rigid shell that includes a body, made of an expanded polystyrene type of material, for example, molded over an outer skin, the shell further including a rigid arch device, the arch device includes a headband applied to the ... | 07/17/2007 |
| 7233676 | Otoplasty for behind-the-ear (BTE) hearing aids An otoplastic for production of behind-the-ear hearing aids. The hearing aid includes a preferably flexible signal conductor, such as an acoustic tube positioned in the auditory canal, whereby the otoplastic matches the individual anatomy of the patient and its loca... | 06/19/2007 |
| 7227965 | Pillow in the form of a stuffed toy or 3-D character toy having two headphone speakers mounted on the ears of the toy A pillow in the form of a stuffed toy or 3-dimensional character toy having two headphone speakers on the ears of the toy. The stuffed toy pillow includes a head with ears and eyes, a body, arms and legs. The toy includes means for connection to an audio player. The... | 06/05/2007 |
| 7139404 | BTE/CIC auditory device and modular connector system therefor An inventive earpiece auditory device is provided. In one embodiment, the earpiece auditory device includes a behind-the-ear component, the behind-the-ear component preferably being shaped to fit behind an ear of a user. In some embodiments, the behind-the-ear compo... | 11/21/2006 |
| 7110563 | Headphone Headphones or earphones are commonly known as electro-acoustic transducers used by a single listener. The invention relates to combing insert and non-insert electro-acoustic transducers in a headphone element. In this way a combination of a wide-low frequency reprod... | 09/19/2006 |
| 7085543 | Modular base plate for wireless device The present invention teaches that a small standardized plate may be affixed to a cellular telephone or item of office equipment. The plate has a first fastener portion. The base unit of a wireless headset and base unit device is equipped with a second fastener port... | 08/01/2006 |
| 7079664 | Wireless ear-piece with conductive case The present invention teaches a wireless ear-piece headset forming an antenna with the interior of a human ear, especially the ear canal. An antenna in operative connection with such interior of such human ear greatly improves reception and transmission of the devic... | 07/18/2006 |
| 7062059 | Multi-function microphone boom with on-line indicator A headset microphone boom that includes a hollow tubular member with a reflective interior surface. A light disperser is coupled to the hollow tubular member at one end and a light emitting device is coupled to the hollow tubular member at the other end. Light is tr... | 06/13/2006 |
| 7054457 | Hearing instrument receiver mounting arrangement for a hearing instrument housing A hearing instrument and method of assembly are disclosed. The hearing instrument comprises an electronic assembly for providing received sound to the ear canal of a hearing instrument user. The electronic assembly is placed within a chamber in a housing sized to fi... | 05/30/2006 |
| 7050599 | Communications earpiece and method of attenuating acoustical signals A communications earpiece includes a member shaped to fit within an ear canal. The member has a passageway extending therethrough. There is a filter communicating with the passageway. The filter has a passageway extending therethrough and is aligned with the passage... | 05/23/2006 |
| 7035421 | Earphone set An earphone set includes two earphones and a connecting device. Each of the earphones has a sound output device respectively. The connecting device is connected to the two earphones. It is characterized in that the two earphones output sound signals in the same dire... | 04/25/2006 |
| 6961440 | Electro-acoustic system An electro-acoustic system for use with an electronic sound-generating member including a fitted earmold having a sound-conduction bore extending therethrough, a sound-conduction tubing having one end connected to the sound-conduction bore and being curved so as to ... | 11/01/2005 |
| 6920228 | Lightweight headset for high noise environments A lightweight communications headset includes a headband adapted to be worn on user's head. A speaker housing is carried by the headband and defines an acoustic chamber. A speaker mounted within projects sound waves into the acoustic chamber. The headband carries a ... | 07/19/2005 |
| 6778676 | Acoustic transmission connection, headset with acoustic transmission connection, and uses of the acoustic transmission connection An acoustic transmission connection, e.g. for a headset (13), comprises a sound tube (2) through which speech signals can be transmitted from a first end (16) to a transducer, e.g. a microphone, in a housing or a housing part (3) of the h... | 08/17/2004 |
| 6768804 | Adjustable microphone boom with acoustic valve A sound sensing apparatus such as a communication headset uses a microphone and an acoustic valve controlled by a movable boom to operate in at least a compact and an extended-boom mode, with the valve variously coupling the microphone to different openings on the b... | 07/27/2004 |
| 6741719 | Head phone A head phone comprises at least one loudspeaker of the type that rests on the outside of a user's ears, mounted on and held in place by a support. The loud speakers are equipped with a sound-concentrating duct that may be pivotable relative to the auditory canal of ... | 05/25/2004 |
| 6683965 | In-the-ear noise reduction headphones An in-the-ear earphone which is placed on a user's ear including a cushion and a shell body defining an internal cavity. The shell body has an extended portion shaped and sized to fit into a concha of the user's ear. The extended portion includes an apert... | 01/27/2004 |
| 6560346 | Pipe microphone device A microphone device having a tube made of an elastic material and a flexible core member having a shape-retaining property located inside the tube.... | 05/06/2003 |
| 6445799 | Noise cancellation earpiece A communications earpiece comprises 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. A microphone port in the ear canal tube is located in the ear can... | 09/03/2002 |
| 6411722 | Earphone for an RF transmitting device An acoustic earphone for transmitting sound from a transducer sound source, the earphone comprising a sound transmitting tube portion extending between an ear tip member for engaging the external ear canal of a user, and a sound receiving end fitted to sa... | 06/25/2002 |
| 6178250 | Acoustic point source Acoustic point source transducer apparatus including a high-output acoustic sound source propagating sound through a long, flexible tubing having an open end with a small diameter. Sound radiates from the small diameter open end effectively acting as an a... | 01/23/2001 |
| 6068079 | Acoustic valve capable of selective and non-linear filtering of sound Acoustic valve capable of selective and non-linear filtering of sound and placeable in a perforated ear plug. The acoustic valve consists of a tube enclosing two rigid disks axially spaced opposite each other, each of the disks containing at least one per... | 05/30/2000 |
| 6009183 | Ambidextrous sound delivery tube system A sound delivery system such as a hearing aid, a telephone headset, a multimedia headset, or other communications device is capable of being used on either the left or right ear of the user. The sound delivery system includes an integral case and ear hook... | 12/28/1999 |
| 5987146 | Ear canal microphone An open ear canal hearing aid system is disclosed which comprises a plurality of ear canal tubes 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. The open ear canal hea... | 11/16/1999 |
| 5913178 | Microphone in a speech communicator The present invention relates to a sound guide (5) in a speech communicator, for example a land mobile radio, a walkie talkie, a cordless telephone or a mobile telephone (1). To achieve good sound quality in such a telephone, a cover (3) is often used whi... | 06/15/1999 |
| 5276740 | Earphone device An earphone device includes an acoustic tube having an inner diameter substantially identical to that of the external auditory canal has an ear mounting portion at one end and an acoustic non-reflecting portion at the outer end. An earphone unit and an in... | 01/04/1994 |
| 5257318 | Earphone spacer with electronically variable sound level A spacing device which holds earphones away from the ears to create a sense of live music when the earphones are used in conjunction with loudspeakers. The spacers allow sound from loudspeakers set away from the user to reach the ear from all directions. ... | 10/26/1993 |
| 5251326 | Two way communication system for water sports A system for two way communication under shallow water or between a swimmer and observer comprising a transceiver, a wire for conducting electrical signals connected to the transceiver, a watertight transducer housing that curvedly conforms to human heads... | 10/05/1993 |