Abstract: The present invention relates to a base plate for the reception of at least one electronic module, whereby the electronic module is insertable and connectable through an opening or slot respectively within the base plate into said base plate. Thereby a part of the electronic module remains accessible from the insertion side or protrudes to the outside. The base plate preferably consists of recesses in the area of the opening according the cross-section shape of the electronic module and in the area of the recesses guiding elements are provided. Those guiding elements are configured such as the electronic module in its vertical end position in relation to the base plate is laterally insertable into the recess with respect to the opening. Such base plates will advantageously be used for hearing aids or hearing devices respectively.

Abstract: A method for frequency transposition in a communication device Or a hearing device, respectively, is disclosed by transforming an acoustical signal into an electrical signal (s) and by transforming the electrical signal from time domain into frequency domain to obtain a spectrum (S). A frequency transposition is being applied to the spectrum (S) in order to obtain a transposed spectrum (S?), whereby the frequency transposition is being defined by a nonlinear frequency transposition function. Thereby, it is possible to transpose lower frequencies almost linearly, while higher frequencies are transposed more strongly. As a result thereof, harmonic relationships are not distorted in the lower frequency range, and at the same time, higher frequencies can be moved to a lower frequency range, namely to an audible frequency range of the hearing impaired person.

Abstract: This invention provides a display device that can be updated via a communications network. In an improved version the advertising material used to update the device depends upon a called number dialled on a telephone which is associated with the device.

Abstract: An earmuff structure for headset or ear protector includes two earmuff shells and two integrally injection molded speaker mounting plates that are screwed to an inner side of the earmuff shells and each has a central hole for receiving a speaker therein. The speaker mounting plates are provided at a rear surface with wall portions of predetermined heights. The wall portions on one of the speaker mounting plates are formed from outer bottom surfaces of two battery compartments formed on a front surface of the speaker mounting plate at two sides of the central hole. With the speaker mounting plates, batteries and speakers may be quickly assembled to form the earmuffs or disassembled for replacement. The wall portions on each speaker mounting plate cooperates with a foam located behind the speaker to define a space functioning like a cabinet, creating clear and high quality stereo sounds output from the speakers.

Abstract: A portable speaker system includes a telescoping enclosure containing at least two drivers. The telescoping enclosure includes an inner section nested within an outer section. Each of the inner section and the outer section includes at least one speaker driver. The telescoping enclosure is configurable in at least two positions, a retracted or collapsed position and an extended position. By extending the telescoping enclosure, greater channel separation and greater internal volume for the enclosure is achieved.

Abstract: A speaker apparatus to be mounted on a vehicle includes a speaker unit and a mounting device. The speaker unit has a frame. The mounting device mounts the frame of the speaker unit on a panel member of a vehicle body. The mounting device includes insulators, which prevent vibration, which is caused by operation of the speaker unit in any direction, from being transmitted to the panel member in any direction.

Abstract: Electro-dynamic loudspeakers typically include a diaphragm that is secured to a frame and has a conductor applied to at least one surface of the diaphragm. The conductor is connected to a power amplifier for providing electric current through the linear traces of the conductor that interact with magnetic fields generated by magnets that are mounted to the frame. The interaction between the current passing through the conductor and the magnetic fields cause vibration in the diaphragm that creates the sound that is heard from the electro-dynamic loudspeaker. Different methodologies of forming the conductor are provided for simplifying the manufacturing process and for locating the conductor closer to the magnetic field generated by the magnets.

Abstract: To realizes a speaker device with a simple construction capable of keeping stable statement, regardless of vehicle types. A speaker device for applying electromagnetic force to a voice coil based on a supplied audio signal and generating a sound wave based on the audio signal by vibrating a vibratory plate fixed to the voice coil is provided with: a frame with one end supporting the vibratory plate and the other supporting an electromagnetic force generation means for applying the electromagnetic force to the voice coil; a first connector provided at the one end of the frame and having an input terminal for the audio signal; a first wire drawn from the first connector and connected so as to be conducted to the voice coil via the vibratory plate; a second connector provided at the other end of the frame and having an input terminal for the audio signal; and a second wire drawn from the second connector and connected so as to be conducted to the voice coil.

Abstract: The present invention relates to a multi-function actuator, in which a voice coil vibrates a sound-generating diaphragm in response to an audio signal. A vibration coil is placed on a central axis coaxial with the voice coil for generating vibration in response to the audio signal or a vibration signal. A vibration unit includes a magnet for generating a magnetic field to both of the voice coil and the vibration coil and a yoke having a predetermined mass. The vibration unit is vertically vibrated by an electromagnetic force produced from at least one of the voice coil and the vibration coil. A switch selectively applies the audio signal to the vibration coil. The multi-function actuator can prevent the vibration of the vibration unit during sound generation in response to user's switch selection.

Abstract: An electromagnetic transducer such as an audio speaker, having a motor structure in which a shorting ring that sinks eddy currents also serves as a permanent fixture to provide coaxial alignment of two or more components within the transducer. These components could include various combinations of the yoke, the top plate, the magnet, and/or other parts. Ideally, the shorting ring extends axially as close as possible to the voice coil, to a position immediately adjacent the magnetic air gap.

Abstract: A piezoelectric transducer, adapted to a bridge of a stringed instrument such as a sound mute guitar, comprises a piezoelectric element roughly having an elongated rectangular shape, a pair of electrodes respectively attached to the upper and lower surfaces of the piezoelectric element, and insulation sheets for insulating the electrodes, all of which are covered with a conductive shield (e.g., a polymeric piezoelectric film), wherein a thin metal plate is adhered to at least the exterior of the upper surface of the conductive shield and is composed of a prescribed metal, which is selected from among copper, gold, and platinum, or a prescribed alloy mainly composed of one of these metals. The thin metal plate is adhered to the conductive shield by use of unhardened adhesive with a coating thickness of 10 ?m or less.

Abstract: A disposable-type hearing aid uses a relatively large single diaphragm or a large single diaphragm subdivided into a plurality of smaller active diaphragm areas obtained using a grate-like back support plate with ridges which contact and divide the diaphragm into the several smaller active diaphragm areas. The diaphragm and a backplate are enclosed in a metal housing and are disposed proximal and parallel to a shell-like hearing aid enclosure having sound inlets. The metal housing is closed at an end opposite the sound inlets by a printed circuit board (PCB) forming an acoustical seal for a back volume of the microphone. The PCB also carries substantially all the electronic components for the hearing aid thereon. The PCB has a ground plane in contact with the housing whereby the PCB also acts as an EMI shield. An electrical connection is formed in various ways between the back support plate and the PCB during assembly of the metal housing and components with the PCB.

Abstract: A spa speaker system is disclosed having a housing with a speaker mounted within it. The housing is movably mounted to a track with the housing extendible and retractable from the top of the track. A spring is arranged to urge the housing to extend from the top of the track. A latching mechanism is operable to hold the housing in its retracted position and is thereafter operable to release the housing. The housing extends from the track when the housing is released by the latching mechanism. A system for providing audio to a reservoir of water is also disclosed. The system comprises a reservoir shell capable of holding water and at least one speaker system according to the invention mounted to said reservoir shell above the water line. Each of the speaker systems is independently extendible from the shell.

Abstract: The present invention is a receiver that includes electronics for converting an input audio signal to an output acoustic signal. The receiver has a housing for containing at least a portion of the electronics. The housing includes a port for broadcasting the output acoustic signal. A suspension system is coupled to the housing for dampening vibrations of the housing. In one preferred embodiment, the suspension system includes three resilient contact structures for contacting a surrounding structure in which the receiver is placed. The contact structures are positioned at specific locations to provide variable dampening levels. In another embodiment, the dampening is provided by a low-viscosity, gel-like material positioned between the housing and the surrounding structure.

Abstract: An assembly (100) for acoustic sealing of a transducer (104) in a communication device is provided. The assembly (100) allows for assembly along one axis (112) and acoustical sealing along another axis (115). The assembly (100) allows for another transducer (106) to be acoustically sealed on a different plane than that of the first transducer (104). Through the use of a compliant member (204) and rigid member (108) coupled to the transducer (104) a floating seal is formed between the chassis (102) and the housing (103) of the communication device (100).

Abstract: A switching unit for a microphone includes a slider-mounting member, a slider mounted slidably on the slider-mounting member and having an operating element, and a slider-positioning mechanism mounted on the slider-mounting member and defining an elongated slot for extension of the operating element therethrough. The slider-positioning mechanism includes a resistance-providing member and two retaining members. The operating element is in sliding contact with the resistance-providing member such that the resistance-providing member provides a resistance to the operating element when the slider is disposed at a non-retaining position. The operating element is retained releasably by one of the retaining members when the slider is moved to a retaining position.

Abstract: A spider with an enhanced structure is disclosed. The spider has a plurality of concentric corrugations each of which has a plurality of inflections so that the concentric corrugations have polygonal shapes. With this enhanced structure, a spider can have an improved strength while maintaining an appropriate flexibility. A spider with the enhanced structure can avoid deformations due to un-uniform applications of external forces over a long period of time.

Abstract: A sound baffle attached to a telephone handset comprises a pair of telescopically connected members shaped and dimensioned to act as a sound guide in combination with a reflecting cover plate that can be obliquely adjusted to direct the sound waves emitted by the user toward the handset microphone, and to muffle his conversation to the surroundings for improved privacy.

Abstract: A microphone enclosure for reducing the intensity of sound waves that reach a microphone is presented. The enclosure may be a solid mass with a cavity, designed so that most of the microphone is surrounded by the solid mass when the microphone is inserted into the cavity. The solid mass is dense enough to reduce much of the sound waves that are first mechanically and then acoustically coupled with the microphone. The microphone may be inserted into the cavity so that a sound receiving section is exposed at the entrance of the cavity. Also, the microphone may not be inserted to the end of the cavity so that there is a space between the end of the cavity and the microphone. A hole may be located on the cavity sidewall so that sound can reach the microphone through this space. The sound receiving sections of the microphone are aligned with openings in the communications device.

Abstract: This invention provides a speaker apparatus that outputs sound having smooth frequency characteristics. To solve the inconvenience with the prior art, this invention is a speaker apparatus comprising a diaphragm and a cylindrical-shaped coil bobbin, and not comprising a center cap that covers the coil bobbin, and where the diaphragm is located such that it rests on the coil bobbin, and the coil bobbin and diaphragm are located such that sound from the coil bobbin and diaphragm is not reflected.