Abstract: 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 aperture at an end thereof which aligns with the user's ear when the earphone is being worn by the user. The extended portion defines a passageway extending from the aperture to the internal cavity. The cushion covers at least part of the extended portion of the shell body and has an opening aligned with the aperture.

Abstract: A hands-free kit for a mobile phone includes an acoustic passage for use with a mobile phone hands-free earphone provided with a speaker and a microphone. The passage comprises a flexible tube having a first end with a mechanism that connects with the speaker and a second end including an earplug. The tube transmits sound reproduced by the speaker to the earplug. The mechanism has a box providing a cavity which houses and locates wholly therein the speaker and includes an opening to which the first end of the tube is connected for communicating with the cavity. The box and the tube are made of a material that does not transmit electromagnetic radiation of the mobile phone as transmitted or emitted by the speaker.

Abstract: 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.

Abstract: 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 canal for detecting sounds in the ear canal. A speaker port in the ear canal tube is located in the ear canal in close proximity to the microphone port for broadcasting sound signals into the ear canal. A sound processor amplifies the ambient sounds received by the microphone to produce processed analog signals. The sound processor also comprises noise cancellation means for producing an inverse noise signal of noise detected in the ear canal by the microphone. The inverse noise signal is sent to the speaker port so as to be broadcast into the ear canal thereby substantially canceling the ambient noise in the ear canal.

Abstract: 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 said sound source. A faraday cage is fitted over the sound source.

Abstract: The present invention provides a hearing and talking device for cellular phone through which a user can hear and speak in the cellular phone from a distance. The hearing and talking device comprises a first tube having a first opening and a second opening; the first opening is aerodynamically communicating with a microphone of the cellular phone and the second opening is suspended in the vicinity of the user's mouth. The device further comprises a second tube having a third opening and a fourth opening; the third opening is aerodynamically communicating with a speaker of the cellular phone and the fourth opening is held in the user's external acoustic meatus. Acoustic waves progress from the user's mouth to the microphone and other acoustic waves progress from the speaker to the user's ear without scattering electromagnetic radiation in the vicinity of the user's head.

Abstract: In the pipe microphone device having such a construction, the pipe is made of an elastic material, and a flexible core member (wire) having a shape retaining property is passed in the inside.

Abstract: A voice conveying guide tube for headsets, comprising a hollow tubular element (24; 100) able to convey voice from the user's mouth to an earpiece assembly (3) of the headset (1) in which a transducer or microphone (60) able to convert the acoustic signal to an electrical signal is provided; the tubular element being flexible so that it can be bent into the desired position and comprising means (71; 102) able to maintain it in the position into which it has been bent.

Abstract: 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 acoustic point source. A flexible sleeve encasing the terminal end of the tubing permits convenient wand-like placement of the acoustic point source by a human operator and an electromagnetic position sensor at the small diameter open end determines point source position. The invention provides a convenient, nondirectional approximated acoustic point source for improved acoustic measuring, especially desirable for near-field Head-Related Transfer Function measuring.

Abstract: 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 perforation. The total perforated surface of at least one disk is between 0.03 and 0.5 mm.sup.2.

Abstract: 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 having a rotatable connection for receiving a sound delivery tube. The sound delivery tube is preformed in a generally L-shaped tube. The sound delivery tube has an eartip at one end configured to be received in the ear canal of the user to secure the end of the sound delivery tube in the ear canal. The tube can be rotated about an axis between a left-ear position and a right-ear position.

Abstract: 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 hearing aid system further comprises a sound processor for amplifying ambient sounds received through one of the ear canal tubes within a predetermined frequency range and to produce processed sounds and for supplying the processed sounds to the second ear canal tube. According to other embodiments of the present invention, the speaker and/or microphone can be located in the ear canal at the end of the ear canal tubes. In these embodiments, the speaker and/or microphone are electrically connected to the sound processor by wires in the ear canal tubes.

Abstract: 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 which reflects the speech in towards the microphone (6) in the body (2) of the telephone. By arranging an air tunnel as a sound guide (5) on the flip-cover and letting it conduct to the body of the telephone and the microphone, the sound quality is improved substantially. In order to avoid uneven frequency response which inevitably occurs in such sound guides due to resonance formation, attenuation material of conventional type is used inside the sound guide together with acoustic extinction by utilizing pressure minimums as a localization point for the microphone.