63results about How to "Improve sound performance" patented technology

A jobsite communications center including a communications module including an electrical power source, at least one speaker and at least one antenna and a toolbox-like housing for enclosing the communications module and having a handle and first and second connection assemblies, the first connection assembly enabling readily-disconnectable and reconnectable stacking interconnection of the communications center with tool boxes, the second connection assembly enabling readily-disconnectable and reconnectable mounting of the communication center on a toolbox-carrying cart in a manner similar to connection of toolboxes thereto.

The invention provides a method for playing multi-channel stereo by matching multiple mobile phones, which comprises the following steps of: establishing Bluetooth connection of multiple mobile phones; setting division of multiple channels of the mobile phones, wherein each mobile phone is responsible for one channel; playing the multi-channel stereo by matching the multiple mobile phones; the steps for playing the multi-channel stereo by matching the multiple mobile phones comprise the specific steps of: analyzing audio frequency data of multiple channels in an audio frequency file from a first mobile phone; transmitting the audio frequency data in the multiple channels of the first mobile phone to other mobile phones through the Bluetooth connection; starting playing the audio frequency data of the first channel by the first mobile phone; meanwhile, transmitting a synchronous time stamp to other mobile phones through the Bluetooth connection by the first mobile phone; after the other mobile phones receive the synchronous time stamp of the first mobile phone, playing audio frequency data of other channels according to the time stamp by other mobile phones; and transmitting the synchronous time stamp and correspondingly-analyzed audio frequency data of other channels to the other mobile phones at fixed time by the first mobile phone until all audio frequency data are played completely.

The present invention discloses a smart phone with a lens comprising a main body, a circuit board, a lens module, a speaker module and a flash module. The main body includes a rear casing having a circuit board mount formed at a lower portion of an inner surface of the rear casing, a lens mount formed at a position adjacent to an upper side of the circuit board mount and attached onto a lateral edge of the rear casing, and a speaker mount formed at an upper edge of the inner surface of the rear casing corresponding to another lateral edge of the rear casing. The circuit board is mounted in the circuit board mount. The lens module is mounted in the lens mount. The speaker module is mounted in the speaker mount. The flash module is mounted between the lens module and the upper edge of the rear casing.

A terminal is capable of transmitting an orthogonal sequence in a broadband wireless communication system. Operations of a transmitting end include generating a sequence corresponding to sequence allocation information of the transmitting end among a plurality of candidate sequences; generating a signal string corresponding to the sequence; and transmitting the signal string over a channel defined for transmission of the signal string.

A reflector for use with an electronic device having a loudspeaker for enhancing the sound emitted from the loudspeaker, said reflector comprising components for attaching said reflector to an edge of the electronic device, at the location of the loudspeaker, a flat portion located to be adjacent a surface of the electronic device, and a concave portion adjacent to the flat portion and presenting a concave surface to the loudspeaker.

The invention relates to a loudspeaker structure of a flat panel display. The loudspeaker structure comprises a shielding structure and a loudspeaker unit. A front frame for mounting the flat panel display and a rear shell integrally extend to form the shielding structure, and a voice box of a loudspeaker is formed by a space enclosed by the shielding structure and the loudspeaker unit. The front frame and the rear shell integrally extend to form the voice box, so that cost of configuring the loudspeaker can be reduced, and sound quality performance can be increased.

The invention discloses a BPPA (Band-Pass Phase Adjustment) digital audio processor and a sound box processor using the same. The digital audio processor comprises n band-pass filters, n time delayers and an n*1 mixer. In the invention, input audio signals are separated into n paths of audio signals according to different frequency bands through the n band-pass filters; the n paths of audio signals are respectively input into the n paths of time delayers; and signals output by the n paths of time delayers are simultaneously input into the n*1 audio mixer to carry out mixing output. The digital audio processor is suitable for sound box processors with a single loudspeaker, two fractional frequencies, three fractional frequencies or multiple fractional frequencies. Based on the chip design of a DSP (Digital Signal Processor), the processors can be adjusted in a large range and large amplitude, have simple operation and obviously and greatly improve the tone quality performance. In addition, the invention can correct the phase deviation of the loudspeaker and improve the frequency response and the transient response of the loudspeaker, thereby reducing the distortion and greatly improving the tone quality performance of the loudspeaker.

A terminal is capable of transmitting an orthogonal sequence in a broadband wireless communication system. Operations of a transmitting end include generating a sequence corresponding to sequence allocation information of the transmitting end among a plurality of candidate sequences; generating a signal string corresponding to the sequence; and transmitting the signal string over a channel defined for transmission of the signal string.

A loudspeaker provided with a frame (101), a membrane (103) and a drive unit (105). The membrane has an outer circumferential edge (104a) suspended from the frame and an inner circumferential edge (104b). The drive unit has a stationary part (106a) secured to the frame and a translatable part (106b) provided with a coil support (108b) secured to the inner circumferential edge of the membrane. The membrane includes a membrane body (104) which, viewed in a circumferential direction, has a pattern of folds radially extending between the inner circumferential edge and the flat outer circumferential edge of the membrane. The folds have a depth (d), which increases from the edges (104a, 104b) towards an area (104A) situated between both edges. In this area, the folds are provided with faces (204C), to which a spider (111) of the loudspeaker is secured. This loudspeaker combines a small height with a large stroke of the membrane.

[Problem] The present invention provides a motor control apparatus that is capable of making the whole system robust not only with respect to motor parameter variations such as the temperature variation and the manufacturing unevenness but also with respect to disturbances and an electric power steering apparatus mounting the motor control apparatus thereon.[Means for Solving the Problem] The motor control apparatus comprises a current detector for detecting a current of a motor and a controller for deciding a voltage command value based on at least a current command value, the controller comprises an adaptive identifying means for identifying parameter variations of an output model of the motor, a current estimating means for estimating a current of the motor, and a voltage command value deciding means for deciding the voltage command value, and the adaptive identifying means performs the identification based on at least a current detection value detected by the current detector and a current-estimate value calculated by the current estimating means, the current estimating means calculates the current-estimate value based on at least a result of the identification and the voltage command value, the voltage command value deciding means decides the voltage command value based on the current command value and the current-estimate value.

A speaker assembly for a motorcycle which comprises a mounting portion adaptable to a motorcycle saddlebag and a mounting portion positioning a speaker to direct the speaker output towards the rider of the motorcycle.

A method and apparatus enhances sounding performance for a broadband wireless communication system of a multi-cell environment. A grouping part groups a plurality of sounding sequences to a plurality of sequence groups. A first determiner determines a correlation between the sequence groups. A second determiner determines a least interference relation between sectors in a cluster. An allocator allocates the sequence groups to the sectors based on the correlation between the sequence groups and the least interference relation between the sectors.

The present disclosure relates an electronic device having a speaker device. The electronic device may include a housing, a speaker device disposed inside the housing, and a sound generation circuit electrically connected to the speaker device. The speaker device may include a sound generation plate movable in a first direction, and a sound reflection construction facing the sound generation plate to form a space between the sound generation plate and the sound reflection construction. The sound generation plate includes a first surface disposed substantially at a center of the sound generation plate, the first surface having a convex shape when viewed from inside the space, and the sound reflection construction includes a second surface substantially aligned with the first surface along an axis of the housing, the second surface having a concave shape when viewed from inside the space.

A reflector for use with an electronic device having a loudspeaker for enhancing the sound emitted from the loudspeaker, said reflector comprising components for attaching said reflector to an edge of the electronic device, at the location of the loudspeaker, a flat portion located to be adjacent a surface of the electronic device, and a concave portion adjacent to the flat portion and presenting a concave surface to the loudspeaker.

The invention provides an acoustic reinforcing material block as well as a manufacturing method and application thereof. The acoustic reinforcing material block is prepared by taking components including a porous material, a binder, a pore-forming aid or gas, a filler and water as raw materials and adopting a foaming freeze-drying process, a freezing foaming process or a sintering forming process, the acoustic reinforcing material block is internally provided with at least three stages of pore channels, the first-stage pore channels comprise micropores of the porous materials, the second-stage pore channels comprise pore channels formed between the porous materials, between the porous materials and the filler and between the filler and the filler, and the third-stage pore channels comprise cavities formed by pore-forming aid or gas. When the acoustic reinforcing material block provided by the invention is filled in a loudspeaker resonant cavity of the electronic equipment, the volume of the loudspeaker resonant cavity can be virtually increased, so that the loudspeaker can achieve better sound quality under the condition of smaller volume, and has more excellent sound performance.

[Problem]The present invention provides a motor control apparatus that is capable of making the whole system robust not only with respect to motor parameter variations such as the temperature variation and the manufacturing unevenness but also with respect to disturbances and an electric power steering apparatus mounting the motor control apparatus thereon.[Means for solving the problem]The motor control apparatus comprises a current detector for detecting a current of a motor and a controller for deciding a voltage command value based on at least a current command value, the controller comprises an adaptive identifying means for identifying parameter variations of an output model of the motor, a current estimating means for estimating a current of the motor, and a voltage command value deciding means for deciding the voltage command value, and the adaptive identifying means performs the identification based on at least a current detection value detected by the current detector and a current-estimate value calculated by the current estimating means, the current estimating means calculates the current-estimate value based on at least a result of the identification and the voltage command value, the voltage command value deciding means decides the voltage command value based on the current command value and the current-estimate value.

The invention relates to a notebook computer with a woofer is characterized in that the woofer is arranged at a pivoted end of a body pivoted screen instead of the occupation of the internal space of the body; an air escape hole is formed nearby the woofer and at the back of the notebook computer, and is not shield by other objects, so as to have better sound presentation; a retaining wall is extended in the body; the retaining wall and the air escape hole form an air escape channel; a path allowing the sound of the woofer to pass in and out is provided by the air escape channel; and the retaining wall can assist the woofer in the resonance bearing of the woofer, thereby further enabling the woofer to have better performance.

The present disclosure discloses a wearable device with a sound sealing structure. The disclosed device may include a housing having at least one or more sound holes, at least one or more substrates fixed inside the housing, and at least one or more sound element portions disposed in the housing to face a 1st direction(+) and including a sound path comprising a duct structure for connection to the sound hole. At least one or more coupling structures on which a coupling force is exerted in a 2nd direction facing a vertical direction of the 1st direction may be formed between the housing and the sound element portion, and the sound element portion may be prevented from and / or resist being moved back in a 1st direction(−) due to the at least one or more coupling structures.

The invention provides an acoustic reinforcing material block with a layered pore channel structure as well as a manufacturing method and application thereof. The acoustic reinforcing material block with a layered pore channel structure is prepared by taking components including a porous material, a binder, a filler and water as raw materials and adopting a freezing orientation process and a freeze-drying process; and the interior of the acoustic reinforcing material block with the layered pore channel structure is of a layered structure and is provided with multi-stage pore channels. The acoustic reinforcing material block with the layered pore channel structure fills a loudspeaker resonant cavity of electronic equipment, and the volume of the loudspeaker resonant cavity can be virtually increased, so that the loudspeaker can achieve better sound quality under the condition of smaller volume, and has more excellent sound performance.

A display device arranged generates a visual and an acoustic output according to an input signal (AVS) with audio (AS) and video (VS) content. The display device includes a cabinet (C) with different mounting fittings (MS, MW) arranged for different types of mounting of the display device. A display (FPD), an acoustic system including one or more loudspeakers (L), a mounting detector (SW), e.g. a microswitch, arranged to detect a type of mounting of the display device, and compensation means (AF) arranged to modify the acoustic output from the display device according to the detected type of mounting of the display device. Hereby, it is possible to adjust the frequency content of the acoustic output from the acoustic system, e.g. electronically, to correspond to the acoustic environment determined by means of sensing the type of mounting of the display device. E.g. one microswitch can be used to discriminate between wall or stand mounting, and digital coefficients for an IIR or an FIR filter can be selected accordingly to compensate the acoustic output from the display device to a desired response. Hereby sound performance of especially flat panel display devices can be improved, since such devices typically exhibit an audio performance which is highly depending on the type of mounting due.

The invention relates to a multipoint excitation source sound box with a radiating structure. The sound box comprises a box body and is characterized in that the box body is long and flat, at least two low pitch loudspeaker installation holes are formed in a front panel of the box body in the length direction, and a low pitch loudspeaker unit is installed in each low pitch loudspeaker installation hole. The low pitch loudspeaker units are arranged coaxially on the same plane, and sound of the two units are radiated towards the front of the box body. A high-mid pitch loudspeaker installation hole is formed in one short side of one end of the box body, and a high-mid pitch loudspeaker unit is installed in the high-mid pitch loudspeaker installation hole. The sound radiation direction of the high-mid pitch loudspeaker unit is perpendicular to the sound radiation direction of a front high pitch loudspeaker unit, and the high-mid loudspeaker unit is coaxial with all the low pitch loudspeaker units. The multipoint excitation source sound box has the advantages of being ingenious in structure, small in size, thin in structure, good in long time operation sound performance and good in reliability.

An adaptive vehicle manufacturing system and method for reducing vibrations and / or improving interior sound performance includes optionally measuring vibration sensitivity of at least one body-in-white vehicle component. The body-in-white vehicle body is assembled at a weld station and includes the at least one body-in-white vehicle component. Optionally, vibration sensitivity of the assembled body-in-white vehicle body is measured. The body-in-white vehicle body is painted at a paint station. An optimal damping package for the body-in-white vehicle body is determined based on the measured vibration sensitivity of the at least one body-in-white vehicle component and / or the measured vibration sensitivity of the body-in-white vehicle body. Damping corresponding to the optimal damping package is applied to the body-in-white vehicle body after painting thereof at a damping station, which can include melt sheet robots for applying the damping package.

Wavy riblets are disposed at one or more auditorily important acoustical boundary layers of a sound producing device. Wavy riblets can be deployed directly onto the surface of the device, and / or onto a film or other carrier that is then positioned in or on the device. Wavy riblets can be advantageously deployed in sets, in a herringbone pattern, and sets of smaller riblets can be disposed between sets of larger riblets. Wavy riblets can also be superimposed onto other wavy or non-wavy riblets. Contemplated sound producing devices include speakers, musical instruments, fan blades and ducts.

The invention discloses a sound box base device for a display. The sound box base device is a base which internally comprises at least one circuit board; the base extends peripherad to form at least one group of sound box structures with at least one loudspeaker; in addition, a supporting cylinder with a containing space also upwards extends on the base; the supporting cylinder can be connected with the display; and an external connecting wire connected with the display can be connected with the circuit board of the base through the containing space of the supporting cylinder. Therefore, the display can make a sound through the sound box structures of the base, so as to replace a conventional sound making structure arranged on the display, thereby promoting the sound performance of the display.

The invention discloses a smart phone with camera, comprising a phone body, a camera module, a circuit board, an audio and a flash module, wherein the phone body is provided with a back cover, the circuit board holder is set at the lower part of the inside surface, and a camera holder is adjacent to the circuit board holder, and the camera holder is adjacent to a horizontal side edge of the back shell, in addition, a speaker holder is set on the top end of the inner side of the back cover and corresponding to another horizontal side edge, the circuit board is correspondingly fixed in the fixing holder, the camera module is correspondingly fixed in camera holder, and the camera module is electrically connected to the circuit board, the audio device is correspondingly fixed in the speaker holder and electrically connected to the circuit board, the audio device is a ring flash module located between the top edge of the back cover and the camera module. This invention is characterized by being capable of achieving the best use of space, and providing the best voice performance for the smart phone.