64 results about "Speaker wire" patented technology

An audio processing system for a vehicle includes a plurality of loudspeakers positioned to form a single line array. The loudspeaker line array is positionable in a vehicle on a dashboard of the vehicle substantially at the convergence of the dashboard and a window of the vehicle. When the loudspeaker line array is driven by an audio signal, a vertically and horizontally focused and narrowed sound pattern is perceived by a listener in the vehicle. The sound pattern is the result of the constructive combination of the direct sound impulses and the reflected sound impulses produced by each loudspeaker in the array. Using delay, attenuation and phase adjustment of the audio signal, the sound pattern may be controlled, limited, and directed to one or more locations in the vehicle.

A communication headset is disclosed that includes a speaker assembly. The speaker assembly includes at least a first speaker coil and a second speaker coil. One speaker coil is for receiving a communication signal, and another speaker coil is for receiving an active noise cancellation signal. Each of the speaker coils co-acts with a magnetic field for causing a diaphragm to move responsive to the communication signal and the active noise cancellation signal individually or simultaneously.

An electromagnetic transducer such as an audio loudspeaker, whose diaphragm assembly and motor both have a highly elongated shape in which the long dimension is at least 3× greater than the short dimension. The diaphragm may be obround, and the motor's magnetic air gap may comprise a pair of elongated, parallel, linear gaps. A novel “boxcar” device is used to hold the bobbin and voice coil in an obround shape, maintaining the parallel, linear shape of their elongated sides. The lower suspension may be disposed only at the ends of the motor, enabling the narrowest possible configuration.

Disclosed is subject matter that proposes a system and method for a media device to automatically detect the characteristics of an attached speaker. Speakers have many different characteristics, for example, power, impedance, frequency response, etc. With knowledge of the speaker characteristics, audio output can be equalized appropriately, and an amplifier of the media device, for example, can prevent exceeding the maximum power handling capability of the speaker. Described is a device and method for retrieving information about the speaker from a memory that is coupled to the speaker. A media device can read the data from the memory over existing speaker wires. Software and/or hardware in the media device can optimize the output to the attached speaker. Accordingly, the media device can interrogate the speaker directly over speaker wire to obtain the characteristics of the speaker.

An elastic headband device with integrated audio system is disclosed. The device includes a stretchable cloth member sized and shaped for positioning about the head and ears of an individual wearer. The cloth member includes a central cavity throughout with first and second side portions and a rear portion. A pair of audio speaker elements are removably disposed within the central cavity of the cloth member at the first and second side portions thereof. A mechanism is also provided for adjusting the relative position of each audio speaker element within the central cavity at its respective side portion to position each element opposite an ear opening of an individual wearer. A central aperture is positioned at the cloth member rear portion for accessing the central cavity. Finally, a plurality of speaker wires are attached to the audio speaker elements within the cloth member central cavity and exit through the central aperture at the rear portion for connection to an audio generation system.

A communication headset includes first and second domes. The first and second domes include the speaker assembly having a first speaker coil and a second speaker coil. One speaker coil is for receiving a first audio signal, and the second speaker coil is for receiving a second audio signal and an active noise cancellation signal. Each of the speaker coils co-acts with a magnetic field to cause a diaphragm to move responsive to the first and second audio signals and the active noise cancellation signal individually or simultaneously. When the first audio signal is detected, a controller disconnects the second audio signal from the first dome of the headset.

An active noise cancellation system includes at least one amplifier, and a speaker driven by the amplifier. The speaker comprises a speaker coil and a spaced apart speaker magnet mounted on a diaphragm. The speaker current in the speaker coil comprises a signal originating from a signal source and an ambient induced back current noise signal. The amplifier virtually losslessly senses the speaker current without the need for inherently lossy sensing resistors. A feedback circuit receives the speaker current sensed and output by the amplifier and provides a feedback signal comprising a modified version of the noise signal to a summing point, wherein the feedback signal and the signal from the signal source are mixed. The summing point is coupled to an input of the amplifier. By adding the feedback signal in the correct anti-phase to the signal from the signal source, the noise in the vicinity of the ear/speaker is virtually eliminated.

The invention discloses a method for manufacturing an ultrahigh-tension wire with a single-crystal alloy material. The method takes copper as the basis, then adds silver, aluminum, palladium, beryllium, and rare earth. The manufacturing method comprises: extracting high purity copper, then adding silver, aluminum, palladium, beryllium, and rare earth, conducting mechanical mixing and then puttingthe mixture in a high purity graphite crucible for preparing an alloy ingot; adding the well prepared alloy ingot into a single-crystal casting machine so as to be prepared into an as-cast single-crystal busbar with a diameter of 3mm, and pulling the as-cast single-crystal busbar to a sub-roll of at least 14 micrometers, thus achieving the performance requirements of a high-tension wire. The product manufactured by the invention has higher electrical conductivity, higher fatigue resistance, higher tensile strength, and higher bendability. The method of the invention simultaneously improves welding performance, toughness and anticorrosion elements, and enhances the atmospheric antioxidation ability of the material. Thus, the ultrahigh-tension wire product of the invention can be widely used in magnetic head coils, cables for medical equipment, high-voltage cables, high quality speaker wires, miniature vibrating coils and other products needing an ultrahigh tension property.

An improved vehicle speaker, or woofer, that is more durable and of a higher quality than those currently available. The speaker includes a cast or machined aluminum basket that increases the strength and rigidity along with efficient cooling required to support a high-power/high-output speaker. An aluminum ring is provided for clamping the speaker assembly in place to the speaker basket. The speaker wires are connected to the speaker using a lug-lock system and has a Faraday cage to reduce interference that otherwise would harm sensitive electronic components. In a second embodiment, a speaker is designed to utilize multiple individual magnetic coils that are stacked in a series/parallel configuration to increase gauss efficiency and voice coil cooling. In a third speaker embodiment, a multi-piece aluminum basket is provided which supports the speaker's reactive and static weight while maintaining the voice coil assembly aligned inside a precision ground gap.

A headphone housing assembly for receiving a removable earpiece assembly, comprising two substantially annular ear cups and a headband assembly, the headband assembly comprising an inner headband and an outer headband that fit removably together to hold a speaker wire. The headband assembly has two ends, to which the ear cups are connected. The ear cups come apart to allow a pair of speakers to be removably inserted into the ear cups, with speaker wire running through the headband assembly.

An earbud headphone set with adjustable behind-the-neck magnetic speaker wire clamps comprising an audio source electrical connector, a length of four-conductor speaker wire, a Y-junction, a first and second length of two-conductor speaker wire, a first and second adjustable magnetic speaker wire clamp, and a first and second loudspeaker. First and second adjustable magnetic speaker wire clamps are each: (i) permanently attached the substantially longer speaker wire, (ii) reversibly slideably attached and reversibly rigidly attached to the substantially longer speaker wire, or (iii) reversibly rigidly attached to the substantially longer speaker wire. Earbud headphone set with adjustable behind-the-neck magnetic speaker wire clamps may further comprise a microphone located on the length of four-conductor speaker wire, the Y-junction, or the first or second length of two-conductor speaker wire.

The present invention relates generally to a compact speaker with secondary wire suspension. The secondary suspension assembly is the speaker has a suspension assembly with preferably 3 wires which provide stability to reduce wobbling while maintaining linear excursion.

A commercial equipment-based equipment carrying-free palm-positioning human-computer interaction method comprises an initializing stage, a sensing stage, a ranging stage and a position estimating stage, wherein in the initializing stage, an acoustic palm positioning system generates a two-sound track linear frequency-modulated audio signal and initializes threads of a microphone and a loudspeaker to ensure that before the loudspeaker works, the microphone is turned on; in the sensing stage, a stereo sound box sends out the two-sound track linear frequency-modulated audio signal, and the microphone continuously records an echo signal obtained by reflecting the two-sound track linear frequency-modulated audio signal by a palm of a user and converts the echo signal to data; in the ranging stage, a processing thread module of the acoustic palm positioning system divides the echo data recorded in the sending phase into fragments and denoises the echo data, finds original audio and echo data and exports the time of flying of sound; in the position estimating stage, the palm of the user is positioned by using a triangular relationship among the palm, a left sound track and a right sound track, and then an estimating error is reduced by a smoothing method. By the commercial equipment-based equipment carrying-free palm-positioning human-computer interaction method, the positioning accuracy reaches a centimeter level; interference on the palm of the user is relatively small, and an equipment carrying-free effect is achieved.

The invention discloses a full-automatic loudspeaker coil winding machine. The full-automatic loudspeaker coil winding machine comprises a device body, wherein the right side end face of the device body is internally provided with a winding cavity, a driving cavity is formed in the position, close to the left side, of the device body, a first rotating shaft is arranged between the driving cavity and the winding cavity in a communication manner, the first rotating shaft is rotatably mounted in the left and right walls of the driving cavity through first bearings, and a first intermittent driving device capable of driving the first rotating shaft to intermittently rotate is arranged in the driving cavity. According to the full-automatic loudspeaker coil winding machine, the right end face ofa rotating wheel plate capable of rotating intermittently is rotatably provided with first six-edge rotating shafts which are symmetrical up and down and left and right, and the right side of the rotating wheel plate is provided with a winding device, driving devices, a shearing device, a recycling device and a mounting device which correspond to the six-edge rotating shafts.