Electrical audio signal processing systems and devices inventions 01/06

20060018486 - Efficient filter for artificial ambience: A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The...

20060018487 - Transducer for sensing body sounds: The structure and method of manufacture of diaphragms for use in electronic body sound transducers is described. The diaphragm is a critical element in shaping the overall amplitude and frequency response of such transducers. Various embodiments of novel diaphragms are described, each of which offers particular advantages in shaping the...

20060018488 - Bone conduction systems and methods: A system for and method of communicating content data through bone conduction is disclosed. The content data can include radio content data, such as FM and AM radio content data, radio packet content data, recorded or stored content data and/or timing signals. The system includes bone conduction speakers configured to...

20060018489 - Advanced digital vehicle microphone system and method having stop request chime capabilities: Disclosed is a digital vehicle microphone system for recording and playback of announcements for use in a vehicle public address system having stop request chime capabilities, comprising a microphone apparatus for pre-recording at least one announcement, the apparatus having a microphone and record switch; a storage device for storing each...

20060018490 - Bessel array: An improved Bessel array of electromagnetic transducers, in which the Bessel coefficients (phase and/or magnitude) are applied only in the useful high frequency range, where off-axis interference patterns between the outputs of respective transducers cause undesirable acoustic results. One improvement is in using an all-pass filter or the like in...

20060018491 - Single-sided bessel array: An improved Bessel array of electromagnetic transducers, in which the Bessel coefficients (phase and/or magnitude) are applied only in a high frequency range, where off-axis interference patterns between the outputs of respective transducers cause undesirable acoustic results. One improvement is in using an all-pass filter or the like in lieu...

20060018492 - Sound control system and method: A sound control system and method applicable to an electronic device having a timing unit. A setting module is provided to set predetermined conditions and corresponding sound volume parameters. A time session control module retrieves the sound volume parameter corresponding to a present condition obtained by the timing unit. Then,...

20060018493 - Apparatus and method of automatically compensating an audio volume in response to channel change: An apparatus and method of automatically compensating audio volume in response to a channel change. The method includes generating a gain value to adjust a level of an input audio signal by comparing an average level of the input audio signal with a predetermined input/output level curve, adjusting an audio...

20060018494 - Microphone assembly comprising magnetically activatable element for signal switching and field indication: A microphone assembly comprising a transducer for receiving sound and outputting a corresponding control signal. The assembly also comprises means for detecting a magnetic field and outputting a signal relating to the field. A hearing aid comprising the assembly has a processor receiving the control signal and selecting between the...

20060018495 - Radio frequency shielding for receivers within hearing aids and listening devices: Method and apparatus are disclosed for reducing or eliminating the interference produced by a receiver in a listening device, such as a hearing aid. The method and apparatus of the invention involves placing an electrically conductive shield around the receiver. Such a shield helps suppress the electromagnetic signals emitted by...

20060018496 - Hearing aid system and operating method therefor in the audio reception mode: In a hearing aid device system with two hearing aids for binaural supply to a hearing aid user, a coupling of the settings of both hearing aids is not always reasonable in the “audio reception” mode and therefore the hearing aid that is in the “audio reception” operating mode is...

20060018497 - Hearing aid system: The user (2) of a binaural hearing aid or communication system (1A, 1B) is to be provided with an easier assignment or identification of acoustic signals generated in the system for keeping a user (2) informed about current settings or states of the system. To this end the signal is...

20060018498 - Hearing aid component for mobile telecommunication terminals: A hearing aid component having a coil which is designed for inductive coupling to a hearing aid coil, where the hearing aid component has an audio connection for receiving audio signals, and also to a combination including the disclosed hearing aid component and a mobile communication terminal....

20060018499 - Acoustic resonator/diffuser system and method: An acoustic system (100) includes a resonant cavity (106) that enhances an audio sound pressure signal produced by a transducer (102) and provides the enhanced audio sound pressure signal to a diffuser cavity (110) and an acoustic cover (120) to diffuse the sound pressure output signal across a greater area...

20060018500 - Speaker device and method of manufacturing the speaker device: A speaker device includes a terminal member, a connecting member, a conductive damper and a diaphragm. The connecting member has a terminal mounting part. The terminal mounting part has a projecting part and a connecting part. The connecting member has a hole in its upper end portion and a fixing...

20060018501 - Reinforced speaker damper: A reinforced speaker damper includes a ring-shaped damper body made of wove fabric in the form of a mesh and press-molded to form a wavy cross-section having alternating ridges and troughs. A plurality of reinforces is attached to the damper body. Each reinforce includes a woven fabric in the form...

20060018503 - Speaker device, magnetic circuit for use in speaker device, and method of manufacturing magnetic circuit: It is an object of the present invention to provide an improved speaker device which can reduce parts-cost by simplifying a cutting treatment for processing yoke and center pole, ensure an easy operation of installing short rings and an extremely simple assembling. The speaker device has a center pole on...

20060018502 - Speaker unit, method for fabricating the same, and speaker apparatus: A speaker apparatus is configured such that a speaker unit including a single magnetic circuit system, a plurality of vibration systems and a case is housed inside a speaker box. In the speaker unit, magnetic gaps having a magnetic field of the same magnitude are defined by a magnet holder,...

20060018504 - Multi-layer composite material panel: The invented multi-layer composite material panel comprises a panel structure that comprises a first composite material layer, an intermediate layer and a second composite material layer in order. Both composite material layers may have same or different constituent materials and layer structures. Each composite material layer may include a fiber-reinforced...

20060013404 - Stereo demodulator circuit: A stereo demodulator circuit comprising at least one noise control unit for performing a noise control responding to an RSSI (reception electric-field intensity) when the RSSI is within a specified range, further comprises an AD converter unit for AD-converting a signal corresponding to the RSSI and a control signal producing...

20060013405 - Multichannel audio data encoding/decoding method and apparatus: A multichannel audio data encoding and/or decoding method and apparatus. The encoding method includes: encoding mono and/or stereo audio data; and encoding extended multichannel audio data other than the mono and/or stereo audio data. The decoding method includes: decoding mono and/or stereo audio data; examining whether there is extended multichannel...

20060013406 - Method and apparatus for creating a virtual third channel in a two-channel amplifier: A method and apparatus for creating a third signal channel from an input signal received in each of a first and second channel involves inverting a predetermined frequency range of signals in the first channel out of phase with a corresponding frequency range of signals in the second channel. Thereafter,...

20060013407 - Methods and apparatus for sound compensation in an acoustic environment: Methods and apparatus are contemplated for providing a primary audio signal containing audio content to one or more primary loudspeakers; and delaying a secondary audio signal containing the same audio content to one or more secondary loudspeakers, wherein the delay is such that respective sound waves originating from the primary...

20060013408 - Audio device with active noise cancellation: An audio device with active noise cancellation (ANC) for coupling to a stereo headset is provided. The audio device comprises an audio processor and an analog ANC control module. The audio processor processes audio data for playback. It optionally can also comprise digital ANC function for tracking and canceling narrow...

20060013409 - Microphone-array processing to generate directional cues in an audio signal: A hear-through hearing protective device includes at least two microphones, simulated-pinna filters, and a processing circuit. Elevation dependent directional cues are introduced by the processing performed by the simulated-pinna filters. Introduced directional cues are designed to allow the wearer to identify the source location of an acoustic signal....

20060013410 - Mobile-telephone adapters for automatic-noise-reduction headphones: One exemplary device, a hands-free adapter for use with ANR headphones, includes a microphone and two stereo-type plugs electrically coupled via a cable. The first stereo-type plug connects to a hands-free jack of a mobile telephone, and the second plugs connects to the audio-input jack of the headphones. The microphone...

20060013411 - On a support seat of an audio player: A support seat of an audio player includes a main body, and various adjusting members; the main body has speakers at two ends thereof, and a holding room for an audio player to be fitted in; the adjusting members can be firmly held in the holding room of the main...

20060013412 - Method and system for reduction of noise in microphone signals: A method for processing noisy electric signals, particularly microphone signals, to produce a processed noise reduced signal, is disclosed. Noise reduction is effected by subtracting from a main (front) digital signal a filtered rear signal obtained through an application of continuously adaptable filter coefficients to a rear digital signal. The...

20060013413 - Audio signal output circuit and electronic apparatus outputting audio signal: A digital audio-signal output circuit is provided, which is capable of outputting an audio signal without generating pop noise. In suppressing pop noise, the audio signal output circuit requires no analog circuit nor mute control signal for external peripheral devices. Upon receipt of a digital input audio signal having an...

20060013414 - Methods and related circuit for automatic audio volume level control: Methods and related circuit for automatic volume-tracking and controlling of an audio signal. The audio signal has a plurality of sampled audio data, and the method includes: for each of the audio data, calculating a mean-volume data according to neighboring audio data; if the mean-volume data is larger than a...

20060013415 - Voice activation and transmission system: A portable voice-activated transmission system that may safely be used in a hazardous location, which effectively eliminates loss of audio input and reduces transmission of ambient noise through use of gathering multiple audio signal inputs from the acoustic environment, storing the gathered audio signals, conversion of the multiple audio signals...

20060013416 - Stereo microphone processing for teleconferencing: Methods and devices for improving the intelligibility of audio in a teleconferencing unit. Multiple microphones and multiple audio channels are used, in which only the best microphones are selected to represent each audio channel. Multiple microphones signals may be mixed according to microphones' positions in a room to form a...

20060013417 - Acoustical panel assembly: An acoustical panel assembly (10) includes a panel (12) having a core (13) made of synthetic material and an acoustical device (26) mounted to an exterior surface (14, 16) of the panel (12). The panel (12) may include an integrally formed attachment member (24) for mounting the acoustic device (26),...

20060013418 - 5.1 channel digital surround earphone: The present invention relates to the technology field of electronic product, more particularly to a 5.1 channel digital surround earphone. It includes a earphone main body and a line-controller. There is a connecting line between the earphone main body and the line controller, input port of the line-controller is connected...

20060013419 - Sound reproducing apparatus and method for providing virtual sound source: A sound reproducing apparatus for providing an optimal virtual sound source and a sound reproducing method therefor are provided. The sound reproducing apparatus includes a virtual sound signal generation unit for generating more than one virtual sound signal corresponding to locations and the number of target virtual sound sources on...

20060013421 - Hearing aid and method for adjusting a hearing aid: The object of the invention is to make the adjustment of a hearing aid more convenient, for which purpose the frequency response data relating to the frequency response individually measured for the present hearing aid (HG) is stored in a memory device (S) of the hearing aid. As a result...

20060013422 - Selective resolution speech processing: A hearing prosthesis, including receiver means for receiving a signal representative of a signal over a frequency range; a first filter bank, having a relatively higher resolution, adapted to process said received signal and produce a first set of channel outputs relating to a selected region or regions of said...

20060013420 - Switching structures for hearing aid: An apparatus is provided that includes an input system, an output system, and a sensor for sensing magnetic fields. In one example, a signal processing circuit electrically connects the input system to the output system, and a magnetic sensor adapted to inhibit the acoustic input and function as a magnetic...

20060013423 - Method and system for selective coupling of a communication unit to a hearing enhancement device: The invention concerns a method (200) and system (100) for selectively coupling a communication unit (110) to a hearing enhancement device (112). The method includes the steps of—in the communication unit—selecting (212) between an acoustic coupling setting and an inductive coupling setting, in response to the selecting step, switching (214)...

20060013424 - Method for processing an input signal to generate an output signal, and application of said method in hearing aids and listening devices: A method and a system for defining a threshold value (Omax, Omin, OTR) serving to limit the output signal of a processing unit which is fed an input signal. An input-signal level is determined and the threshold value (Omax, Omin, OTR) is set as a function of that input-signal level....

20060013425 - Hands-free microphone with wind guard: An airflow guard for a microphone includes a shell having an airflow diverter and a flow separation edge. The airflow diverter partially surrounds the microphone to redirect a flow of air away from the microphone. The flow of air separates from one of the airflow diverter or the flow separation...

20060013426 - Condenser microphone: In a gooseneck condenser microphone in which a condenser microphone unit is supported via a support pipe including a flexible pipe, the shield in a flexible pipe part is enhanced. In the condenser microphone including the condenser microphone unit and an output module section provided with a circuit board for...

20060013427 - Stable attachment microphone stand systems: Microphone stand attachment systems to attach a support base to a longitudinal axial element easily, quickly and securely. An attachment guide may include a threaded plug and a support base may include a threaded socket. In embodiments, a male tapered flange may frictionally lock with a female tapered element of...

20060013428 - Condenser microphone: In a condenser microphone including a microphone unit and an output module section which are connected to each other via a microphone code, the length of a microphone code in the output module section is shortened without interfering with soldering of the microphone code to a circuit board of the...

20060013429 - Headphone: In order to provide headphones with a cord-winding mechanism capable of favorably retracting and winding a cord, a cord-winding mechanism is incorporated in either or both of the casings of housings 1L and 1R constituting headphones; and a lock is released by joining the left and right casings together, so...

20060013430 - System and method to enhance reproduction of sub-bass frequencies: A loudspeaker system comprising a closed cabinet containing a tuned port, an electromechanical driver, an acoustic radial transmission line (VARTL), a reactive alternate density transmission medium (ADTM) load and a radial right angle wave guide (RRAWG). The VARTL is disposed around and in front of the cone of the driver...

20060013431 - Damping system: For providing a damping system to supply good sound characteristics of a speaker, the damping system includes an inner panel, a speaker and a damping device. The inner panel is vibrated by the speaker. The inner panel is provided on a surface thereof with a mounting portion of the damping...

20060013432 - Low-radiation electromagnetic earpiece: In an electromagnetic earpiece with a housing in which a coil through which an energizing current flows as well as a membrane are arranged such that the membrane can be excited to vibrate as a result of the energizing current, the parasitic leakage field generated by the electromagnetic earpiece is...

20060013433 - Audio speaker cone appartus and method of manufacture: The invention provides for the construction of cones (12) of audio speaker (10) from at least some quantity of hemp fiber, alone or with other materials and/or binding chemicals. The hemp composition may range from approximately 2% to approximately 100% hemp fiber. The invention composition may be mixed, molded, pressed,...

20060008089 - Method for processing audio signals and audio processing system for applying this method: A method for processing audio signals composed audio signals (L+R) and (L−R) are derived from left (L) and right (R) audio signals. The energy content of the composed (L−R) audio signals above a predetermined frequency value is measured and compared with a predetermined threshold value. Then, when this energy content...

20060008090 - Separation adjusting circuit: A current amount of a current that flows in the transistor (23) of a current mirror circuit that retrieves an L−R component signal from a stereo composite signal is adjusted based on a control signal that is generated by the control circuit (25)....

20060008091 - Apparatus and method for cross-talk cancellation in a mobile device: An apparatus and method for eliminating cross-talk being heard at a listener device in a mobile communication system. The apparatus eliminates cross-talk occurring in a signal output through at least two speakers in a mobile system, and includes a decoder for decoding an input signal, a controller for providing information...

20060008092 - Interactive broadcast channel: A broadcast music channel for a one-to-many broadcasting infrastructure, broadcasting at least vocal and instrumental parts of musical performances to currently connected users of the channel, and supporting a user operated interactive control allowing each user independently to remove a vocal part of a current performance if desired. The vocals...

20060008093 - Media recorder system and method: A method and system for communicating audio signals. The method comprises receiving the audio signals, each portion of the audio signals being associated with a single one of a plurality of original sounds, such as a single musical instrument, a human voice, or a naturally occurring sound. The method comprises...

20060008094 - Wireless multi-channel audio system: A wireless multi-channel audio system includes a receiving unit, a decoder, a sound channel mixing and processing unit, and a plurality of earphone speakers. The audio system is equipped with a wireless transmitter of low signal delay time and high transmission data rate to send an SPDIF audio signal to...

20060008095 - Pulse-width modulation amplifier and suppression of clipping therefor: A pulse-width modulation (PWM) amplifier is adapted to a class-D amplifier in which an analog input signal is subjected to integration, pulse-width modulation, and switched amplification, wherein a glitch elimination circuit eliminates noise from a pulse-width modulated signal, from which a high pulse signal and a low pulse signal are...

20060008096 - Audio dynamics processing control system: An improved dynamics processing control system clamps a level detected control signal at a level equal to a predefined threshold point. In one embodiment, a clamped level detected signal feeds a filter with very slow response characteristics. By comparing the difference between the input and the output of the system...

20060008097 - Detection and control of diaphragm collapse in condenser microphones: A condenser microphone is provided having a transducer element. A diaphragm has an electrically conductive portion. A back-plate has an electrically conductive portion. A DC bias voltage element is operatively coupled to the diaphragm and the back-plate. A collapse detection element is adapted to determine a physical parameter value related...

20060008098 - Single crystal silicon micromachined capacitive microphone: A single crystal silicon micromachined capacitive microphone is disclosed. The microphone comprises a flexible plate made from a bottom layer of a first epitaxial single crystal silicon layer, a stiff and perforated plate made from a portion of a second epitaxial single crystal silicon layer, a supporting frame is made...

20060008099 - Acoustic device: A bending wave loudspeaker comprising a panel-form radiator and an electromechanical vibration exciter coupled to the radiator, wherein the bending stiffness of the radiator is in the range 0.001 to 1000 Nm, wherein the coupling between the exciter and the radiator is such that a component of the applied energy...

20060008100 - Apparatus and method for producing 3d sound: Disclosed herein is an apparatus for producing 3D sound. The apparatus includes a determination unit, a mono sound spreading unit, a stereo sound spreading unit, a selection unit, and a 3D sound accelerator. The determination unit receives a source sound file and determines whether the source sound file is mono...

20060008101 - Spectral enhancement using digital frequency warping: A frequency-warped processing system using either sample-by-sample or block processing is provided. Such a system can be used, for example, in a hearing aid to increase the dynamic-range contrast in the speech spectrum, thus improving ease of listening and possibly speech intelligibility. The processing system is comprised of a cascade...

20060008102 - Method of programming a hearing aid by a programming device: A battery-powered hearing aid (1) is programmed via a programming device (2), the hearing aid (1) having a battery (11) and a line connection (3, 4) for connecting the battery (11) to the programming device (2). The programming device uses a variable voltage source (5) and an input comparator (6)...

20060008103 - Flat panel display apparatus, stand and speaker apparatus: A stand on which a flat panel display main body is placed has low-pitched sound speakers built therein and a speaker of the flat panel display main body and the low-pitched sound speakers of the stand are combined together to construct a powerful sound system with large sound volume. The...

20060008104 - Sports board music: Sports board music is a waterproof am/fin radio, MP3 player, or compact disc player designed to attach to a sports board i.e. (surfboards, snowboards, or wakeboards). Its main purpose is to entertain sports board riders while they are using their boards. It is designed to adhere to the sports board,...

20060008105 - Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier: A microphone assembly comprises a housing that includes a conductive material. A preamplifier circuit is disposed within the housing, the preamplifier circuit having a signal input and a ground terminal. A microphone portion is disposed within the housing, the microphone portion having an output coupled to the signal input of...

20060008106 - System and method for securing headphone transducers: A system for securing headphone transducers is provided. In one aspect of the present invention, the system comprises a first transducer device having a first mechanical housing, which has an outer surface and an inner surface. A first coupling device is affixed to the outer surface of the first mechanical...

20060008107 - Speaker device: It is an object of the present invention to reduce a playback distortion and make it possible to output a large volume sound in a low frequency area, without increasing the diameter of subwoofer or woofer. A speaker device comprises a speaker unit, a diaphragm of the speaker unit disposed...

20060008108 - Loudspeaker structure: The present invention relates to a loudspeaker structure in accordance with one aspect of the present invention comprises a bowl-shaped frame, a central column is integrally formed in the frame and faces an opening end of the frame, the central column axially formed with a through hole, and a fixing...

20060008109 - Loudspeaker structure: The present invention relates to a loudspeaker structure in accordance with one aspect of the present invention comprises a bowl-shaped frame, a central column is integrally formed in the frame and faces an opening end of the frame, the central column axially formed with a threaded hole, and a fixing...

20060008110 - Receiver with multiple drive coils: The invention provides a moving armature receiver, such as for a hearing aid, with at least two drive coils adapted to be driven by separate drive signal across different frequency ranges. This is achieved by a frequency dividing network adapted to split an audio input signal into first and second...

20060008111 - Acoustic diaphragm: An acoustic diaphragm is disclosed having a plurality of acoustic elements supported by the diaphragm. In a preferred form, each element is coupled to a driver and extends radially at a uniform acute angle to a normal of the driver. In the preferred embodiment, a plural layer of the elements...

20060002567 - Audio output mode setting apparatus and an audio output mode setting method: An audio output mode setting apparatus for setting an output mode of audio signals to a plurality of speakers which are located at mutually different positions including: a detection device which detects a direction of a seat on which a listener of the audio signals which are outputted from the...

20060002566 - System and method for estimating speaker's location in non-stationary noise environment: A system and method to estimate a location of a speaker who produces a sound signal even in a non-stationary noise environment. The system includes a signal input module receiving a first sound signal from an outside; an initialization module preparing a sound map, on which a spatial spectrum for...

20060002568 - Audio noise cancellation system for a sensor in an automotive vehicle: An assembly includes a seat 60 having a seat base 64, an occupant sensor positioned in the seat base, said occupant sensor comprising a fluid filled bladder coupled to a pressure sensor, said pressure sensor generating a pressure signal, and an audio system having an electrical output coupled to a...

20060002569 - Loudspeaker systems: A loudspeaker system includes a pair of substantially identical drivers mounted on opposite faces 4 of an enclosure. The drivers are coupled together by a tensioner so as substantially to cancel out reaction forces acting on the enclosure....

20060002570 - Noise canceling microphone: An improved noise canceling microphone is provided including robust design features and advanced noise control and speech discrimination convergence characteristics. Two adaptive controllers are used to ensure robust performance in quickly changing acoustic environments ensuring an acceptable minimum performance characteristic. Additionally, a new real-time spectral estimation procedure is applied to...

20060002572 - Method for correcting metadata affecting the playback loudness and dynamic range of audio information: A coded signal conveys encoded audio information and metadata that may be used to control the loudness and dynamic range of the audio information during its playback. If the values for these metadata parameters are set incorrectly, annoying fluctuations in loudness during playback can result. The present invention overcomes this...

20060002573 - Radio receiver volume control system: A method and system for adjusting the audio volume of an electronic device such as a digital audio broadcast radio receiver is described. The gain of an amplifier is adjusted according to additional data received with the signal, preferably a radio signal, so that the output volume level of a...

20060002571 - Self-adjusted car stereo system: A self-adjusted car stereo system is provided. The system includes means for allowing a user to select an ideal listening location. After the ideal listening location has been selected, the system will determine whether sound from each speaker reaches the ideal listening location at the same volume level. If not,...

20060002574 - Canal hearing device with transparent mode: Embodiments of the invention provide a canal hearing device and method in which the device is implemented with a mode of operation that provides acoustic transparency as well as a power-saving function, permitting the user to wear the device in the ear canal during periods of sleep or inactivity without...

20060002575 - Microphone device: There is provided a microphone device for preventing spark discharge caused by static electricity when a speaker touches a flexible pipe supporting a microphone, thereby preventing noise on an audio signal. A flock layer 11 is provided in which short fibers 13 are electrostatically flocked on a periphery 3 of...

20060002576 - Microphone device: There is provided a microphone device which can positively prevent vibration noise caused by a microphone unit shaking its head back and forth. A microphone unit 24 is held by a unit mounter 23 composed of a plate-like elastic body 26, and the two upper and lower points of the...

20060002577 - Internal weight type vertical vibrator: Disclosed is an internal weight type vertical vibrator including: a housing; a magnetic circuit unit placed in the internal space of the housing, and comprising a magnet perpendicularly placed and a yoke for fixedly receiving the magnet therein for generating a magnetic field; spring members provided with upper ends fixed...

20060002578 - Multi-function actuator capable of preventing vibration: 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....

20060002579 - Speaker device: In a speaker device, when an excessive driving signal larger than a withstand input is inputted to a voice coil, a voice coil bobbin moves with large magnitude. When the voice coil bobbin largely moves on a side opposite to a sound emitting side (downward), each component of the speaker...

20060002580 - Loudspeaker spider with enhanced structure: 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...

20060002581 - Dynamic microphone: There is provided a dynamic microphone which prevents, with a simple configuration, the lead of a voice coil from breaking even when a strong sound pressure or the like presses a diaphragm to a magnetism generating circuit. The dynamic microphone includes a diaphragm 11 having a voice coil 12 attached...