61 results about "Car audio system" patented technology

The utility model belongs to the technical field of loudspeakers, and discloses a vehicle-mounted loudspeaker and a vehicle-mounted audio system. It includes a rear shell, a fixed structure, a magnetic structure, a vibration structure and a front shell. Among them, the fixed structure includes a fixed basin frame and a support sheet, the fixed basin frame is detachably connected to the rear shell, and the support sheet is fixed on the fixed basin frame; the magnetic structure is embedded in the fixed basin frame, and a magnetic gap is arranged on the magnetic structure; the vibration structure includes a voice coil and a diaphragm, the voice coil is inserted on the support sheet, and the position is adjustable and inserted in the magnetic gap, and the diaphragm is designed to be integrally formed, which can meet the requirements of the sound pressure level and frequency width of the loudspeaker. The front shell is detachably connected to the fixed basin frame and is stacked on the diaphragm. A plurality of stepped sound guide holes are arranged at intervals along the circumference of the front shell, which can effectively compress and enhance the sound pressure level of the middle and high frequencies, so that the loudspeaker can meet the laws and regulations on high sound pressure levels of horn horns, and further meet the various needs of pedestrian warning sounds, horn horns, and vehicle external prompt sounds.

The invention relates to an electrostatic vibrating diaphragm automobile audio which is mainly used for an electric vehicle and can compensate vehicle-mounted electromagnetic interference audio and solve the problem of electromagnetic interference of a motor PWM switch and rotating speed harmonics on an audio system. The electrostatic diaphragm automobile sound system comprises an electrostatic diaphragm loudspeaker and an interference feature extraction module, the rotating speed of a motor and the PWM frequency are obtained through a CAN bus, and a dynamic interference feature set is analyzed and extracted through adaptive window length FFT; the EMI quantification module is used for calculating an electromagnetic pollution index at a frequency band of 8kHz-20kHz, and triggering compensation when the electromagnetic pollution index exceeds a threshold value of-40dB; the dynamic notch compensation module is used for generating an inversion signal; according to the double-loop feedback control module, the amplitude is adjusted through PID of an inner loop, and the phase is optimized through gradient descent of an outer loop so as to minimize THD. The method comprises five steps of signal acquisition, feature extraction, interference quantification, dynamic compensation and signal injection. Interference frequency drift can be accurately tracked, a tone quality MOS value is improved after compensation, and an over-compensation risk is avoided.

The present invention relates to the technical field of automobile audio technology, and more specifically to an automobile audio system with a convenient disassembly and assembly of an audio panel; the automobile audio system comprises a speaker, an outer shell, a supporting sheet, a panel net and a pressure ring, wherein threads are provided on the inner side of the upper end of the outer shell and the outer wall of the pressure ring, the speaker can be placed in the outer shell and a plurality of supporting sheets for supporting the lower end surface of the speaker edge are formed on the inner wall of the outer shell, the panel net can be inserted between the speaker edge and the outer shell, and the pressure ring can be tightened on the inner side of the upper end of the outer shell to press the panel net onto the speaker; the automobile audio system further comprises a shock-absorbing part which can be embedded between the lower end of the speaker and the outer shell, the shock-absorbing part comprises an elastic sleeve and a limiting sleeve, the elastic sleeve is sleeved on the lower end of the speaker, and the elastic sleeve is fixedly connected to the inner wall of the limiting sleeve; the automobile audio system can reduce the influence of surrounding vibration on the audio system while being conveniently disassembled and assembled.

A loudspeaker having double cones and an assembly method therefor, and a car audio system. The loudspeaker having double cones comprises: a basket, which is hollow and has a first end and a second end opposite to each other; a first cone, the outer edge of which is connected to the first end; a first voice coil, which is connected to the first cone; a first magnetic circuit, which is used for driving the first voice coil to reciprocate along a motion axis; a second cone, the outer edge of which is connected to the second end, wherein the second cone has a front surface and a back surface; a second voice coil, which is connected to the second cone; and a second magnetic circuit, which is used for driving the second voice coil to reciprocate along the motion axis, wherein the back surface of the first cone and the back surface of the second cone are arranged directly opposite to each other, the first magnetic circuit is arranged between the first cone and the second cone, the first magnetic circuit is connected to the basket, a mounting space is formed in the first magnetic circuit, and the second magnetic circuit is arranged in the mounting space of the first magnetic circuit. The loudspeaker achieves the function of a subwoofer without an additional cabinet, thus saving space.

This invention provides a car seat headrest speaker, including a microcontroller, a digital signal processor, a power amplifier chip, and two pins. The power amplifier chip is connected to a speaker and the digital signal processor; the digital signal processor is connected to the microcontroller; and the microcontroller has a Bluetooth transceiver. The speaker is detachably connected to the car seat headrest. The two pins connect to the vehicle's infotainment system, through which the microcontroller receives CAN protocol signals and controls the Bluetooth transceiver to enter TWS pairing mode based on the CAN protocol signals. This invention achieves multi-scenario speaker use through a detachable design and utilizes physical pins to transmit CAN bus signals to activate TWS pairing, solving the problems of existing car audio systems being non-detachable and limited in use scenarios. While ensuring driving safety, it enhances the auditory immersion and interactive experience for drivers and passengers.

This utility model discloses a car audio system, which includes a speaker assembly and a decorative opening and closing mechanism. The speaker assembly includes a support base and a speaker. The support base includes a housing, and the speaker is disposed inside the housing. The decorative opening and closing mechanism includes a trim assembly and an opening and closing drive assembly. The trim assembly includes multiple protective trim pieces, which are circumferentially arranged around the housing and rotatably mounted on the housing. The opening and closing drive assembly is driven by the multiple protective trim pieces and drives them to rotate between an open and closed state. When rotated to the closed state, the multiple protective trim pieces can house the housing within them. The protective trim pieces serve both decorative and protective functions, effectively preventing the housing from being directly damaged by external impacts, ensuring the sound quality and aesthetics of the car audio system, and preventing dust and moisture from entering the housing, thus extending the lifespan of the car audio system.

The present invention discloses a vehicle-mounted low-frequency vibrator and a car audio system. The vehicle-mounted low-frequency vibrator includes a bracket, a voice coil, and a magnetic circuit system. The magnetic circuit system has a magnetic gap, the upper end of the voice coil is inserted into the magnetic gap, and the lower end of the voice coil is connected to the bracket; the vehicle-mounted low-frequency vibrator also includes a first positioning support and a second positioning support, the first positioning support and the second positioning support respectively include an outer connecting edge, an inner connecting edge, and a main body connected between the outer connecting edge and the inner connecting edge, and the main body is made of fabric; the outer connecting edge of the first positioning support is connected to the top of the bracket, and the inner connecting edge of the first positioning support is connected to the upper part of the magnetic circuit system; the second positioning support is located below the first positioning support, the outer connecting edge of the second positioning support is connected to the lower part of the bracket, and the inner connecting edge of the second positioning support is connected to the lower part of the magnetic circuit system. The vehicle-mounted low-frequency vibrator of the present invention has a low resonance frequency at low frequencies, which helps to create a better 4D effect in the car.

1. Name of the product in this design: Car Audio System (SB4001). 2. Purpose of this design: For use as a car audio system. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

An inverted magnetic circuit ultra-thin car horn includes a frame, a spider, a diaphragm, a voice coil, a suspension system, and a magnetic circuit system. The magnetic circuit system includes a main magnet, a secondary magnet, a U-shaped iron, a washer, and a bullet-shaped head. The magnetic circuit system is inverted and installed above the suspension system, and is fixed by screws. The frame is made of die-cast aluminum and supports the suspension system and the magnetic circuit system. The suspension system includes a spider, a diaphragm, and a voice coil, and the voice coil is spaced with the magnetic circuit system to drive sound production. The installation depth of the horn is less than 43mm. This utility model has a novel structure and ingenious design. By installing the magnetic circuit system above the suspension system with an inverted magnetic circuit structure, it breaks through the traditional height limitation of "suspension system + magnetic circuit system" for horns, meeting the needs of scenarios with strict requirements for installation depth, such as ceiling speakers, wall speakers, and car audio systems.

1. Name of the designed product: car audio (156 rotating tweeter). 2. Use of the designed product: used as a player inside a vehicle. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

1. Name of this design product: Car audio housing (subwoofer). 2. Purpose of this design: For use in car audio enclosures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

An emulation system (e.g., 100) and method for emulating a listener's audio experience of a candidate loudspeaker speaker system in an acoustic (e.g., residential) space (e.g., 102) includes acquiring binaural impulse responses associated with that listening experience generating associated binaural impulse response ("BIR") filters, and applying them in real time to any user-selected program material for playback over specially prepared headphones (e.g., 900). Headphone listening "modes" may be offered to listeners which emulate the speaker-room experience, and headphones so prepared may be offered to prospective customers of the candidate loudspeaker system (112) whose in-room performance has been emulated. In another embodiment, binaural recordings of automotive audio systems may be used for emulating such systems over headphones.

The utility model provides an emergency command vehicle, and relates to the technical field of command vehicles. The emergency command vehicle comprises a vehicle body, a vehicle roof platform is arranged at the top of the vehicle body, a generator is installed in the vehicle body, and a mute cover is arranged on the outer side of the generator; a folding conference table is arranged in the vehicle body, a chairman rotating chair is arranged in the vehicle body, a folding seat is arranged in the vehicle body, a fixed table plate is installed on the inner wall of the vehicle body, and a long-row sofa is arranged in the vehicle body; a storage battery is arranged at the bottom of the long-row sofa, an in-vehicle sound box is arranged in the vehicle body, a liquid crystal display television is arranged in the vehicle body, a fan heater is arranged in the vehicle body, a cable reel is arranged in the vehicle body, and a machine cabinet is arranged in the vehicle body. The comfort of the emergency command vehicle is effectively reduced through multiple groups of internal facilities, so that the vehicle can be suitable for long-term emergency command operation.

1. Name of the product in this design: Car audio (5247). 2. Application of this design: This design is intended for use in car audio systems. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model provides a lifting support of a vehicle-mounted sound system, which comprises a shell, a driving seat installed in the shell in a lifting mode and a lifting platform located on the upper side of the shell and connected with the driving seat, guide rods used for guiding the driving seat are symmetrically installed in the shell, guide sleeves are symmetrically installed on the driving seat, and the lifting platform is connected with the guide rods. The guide rods are arranged in the corresponding guide sleeves in a penetrating manner; a containing groove is formed in the driving base in a penetrating mode, the guide sleeve is arranged in the containing groove, a gap is formed between the guide sleeve and the inner wall of the containing groove, the guide sleeve is sleeved with an elastic component, and the elastic component abuts against the inner wall of the containing groove under the action of elastic force. The lifting support of the vehicle-mounted sound equipment overcomes the defects that an existing lifting support of the vehicle-mounted sound equipment is prone to shaking and noise, and the guide rod is prone to being clamped.

1. Name of the product in this design: Lifting Speaker (Wenjie M9). 2. Purpose of this design: For use in car audio systems. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of this design: Car dashboard liftable speaker cover. 2. Purpose of this design: Cover for car audio systems. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application discloses a detachable vehicle-mounted sound system and a vehicle, and the detachable vehicle-mounted sound system comprises a position detection module, a microprocessor, a digital signal processing module, a power amplifier, a signal switching module and a loudspeaker. The position detection module is used for detecting whether the sound system is in a vehicle-mounted installation state; the microprocessor is in communication connection with the position detection module and is used for determining a current interaction scene according to an output signal of the position detection module and a vehicle control instruction and outputting a scene control signal; the digital signal processing module is connected with the microprocessor and is used for loading a corresponding sound effect processing algorithm according to the scene control signal and processing an audio signal; the power amplifier is connected with the digital signal processing module and is used for amplifying the processed audio signal; the signal switching module is used for switching an audio signal path according to the scene control signal; and the loudspeaker is used for playing the audio signal.

A wireless audio device may include a transmitter unit configured to be installed in a vehicle and electronically coupled with a head unit in the vehicle. The transmitter unit may receive audio signals from the head unit and may be powered by the vehicle. The transmitter unit may include wireless communication circuitry to wirelessly transmit at least a portion of the audio signals to one or more battery-powered speaker units. At least one of the battery-powered speaker units may include additional wireless communication circuitry to receive the audio signals from the transmitter unit, one or more amplifiers to amplify the audio signals, and one or more speakers to produce sound based on the audio signals.

The invention provides an automobile audio system control method and an audio system.The automobile audio system control method comprises the steps that when the automobile audio system control method is executed, current driving condition information of an automobile is obtained firstly, and the current driving condition information comprises energy state information and road condition information; after the energy state information and the road condition information are integrated, the cruising ability of the automobile can be reflected more accurately, that is, the current cruising ability information of the automobile is determined according to the energy state information and the road condition information. According to the current cruising ability level, the current cruising ability information is represented by the cruising ability level and is divided into the normal level and the limit level, the normal level means that energy capable of being distributed to an automobile audio system to play audios is sufficient, the current cruising ability level of an automobile is high, and the audios are controlled to be played normally. Audio playing is not limited; the limit level means that energy which can be distributed to an automobile audio system to play audios is insufficient, the current cruising ability level of an automobile is low, and the playing power of the audios needs to be limited.

Embodiments of the present application provide a movable vehicle-mounted sound system, a vehicle and a vehicle-mounted sound control method. The movable vehicle-mounted sound system comprises at least one detachable mid-high sound module and at least one detachable bass module, the mid-high sound module comprises a mid-high sound speaker and a first combination structure, and the bass module comprises a bass speaker and a second combination structure; the mid-high sound module has a vehicle-mounted state connected with the vehicle through the first combination structure, the bass module has a vehicle-mounted state connected with the vehicle through the second combination structure, and the bass module and the mid-high sound module also have an off-vehicle state connected with each other through the first combination structure and the second combination structure; and the system further comprises: a receiving module for receiving an audio signal and a control signal; and a control module for generating a control instruction according to the control signal to drive the bass speaker and / or the mid-high sound speaker to play the audio signal when the bass module and the mid-high sound module are in the off-vehicle state.

1. Name of the product in this design: Car Audio System (MT4300). 2. Purpose of this design: For use in car audio systems. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

An in-car audio system, may include at least one vehicle speaker arranged in a vehicle headrest behind an occupant and configured to transmit audio signals to the associated occupant, the at least one vehicle speaker including a pair of speakers configured to provide binaural audio signals to the associated occupant; at least one visual indicator arranged within a vehicle cabin at a first location and configured to provide a visual cue to the occupant; a processor programmed to instruct the speaker to emit an audio signal perceived at the first location, and instruct the at least one visual indicator to concurrently illuminate with the audio signal to provide visual reinforcement to the occupant that the audio signal perceived is associated with the first location.

The utility model relates to an adapter, a vehicle-mounted playing device and a vehicle, and the adapter is used for adapting to a detachable vehicle-mounted sound box and comprises an adapting base, a locking piece and a driving device. An adaptive cavity is formed in the adaptive base to accommodate at least one part of the vehicle-mounted sound equipment; the locking piece is provided with a locking position for locking the vehicle-mounted sound system and an unlocking position for releasing the vehicle-mounted sound system relative to the adaptive base; the driving device is connected to the locking piece so as to drive the locking piece to move between a locking position and an unlocking position; and at least part of the movement track of the locking piece from the locking position to the unlocking position intersects with the combination direction of the vehicle-mounted sound equipment combined to the adaptive base. According to the technical scheme, the driving device drives the locking piece to move between the locking position and the unlocking position, interference exists between the locking piece and the position where the vehicle-mounted sound box is located in the process, the vehicle-mounted sound box is locked on the adaptive base, the vehicle-mounted sound box can be conveniently assembled and disassembled when the locking piece moves to the unlocking position, and therefore the vehicle-mounted sound box locking device has the advantage of being convenient to operate.

A signal processing method and Automotive Audio System 290 comprising a tripolar loudspeaker configuration housed in at least one automotive head-rest assembly 200 or 500, whose radiation pattern, in conjunction with inter-element delays and other design features, is such that that passengers are afforded temporal and amplitude cues for achieving the desired soundfield appropriate for a variety of audio program material. Optionally, some or all of the headrest assembly transducers are aligned and configured with a Floating Waveguide member 470.

1. Name of the product in this design: Rotary tweeter for automobiles (Passat). 2. Application of this design: This design is intended for use in car audio systems. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention provides a recognition method and system for a sound mode of an automobile sound system, and is applied to the technical field of sound recognition. Sound signals in an automobile are collected and processed to obtain a sound mode judgment result and a judgment reliability index; meanwhile, vehicle running state information and in-vehicle environment noise information are obtained to evaluate environment stability and quantify the environment stability into an environment stability index, then a mode switching decision threshold value is dynamically adjusted according to a judgment reliability index and the environment stability index, and whether sound mode switching is conducted or not is determined according to the threshold value. The problem that in the prior art, sound mode recognition is easily interfered by the complex environment in the automobile, and misjudgment is caused is effectively solved, and the method has the advantages that the accuracy, robustness and user experience of sound mode recognition of the automobile sound system are remarkably improved.

This patent application deals with a wireless audio distribution system, and means of connecting these systems via Bluetooth, with a master transmitter system and one or more slave receiver systems for this audio distribution, so as to generate a synchronized audio transmission and without the need for wires. This system is intended for use in car audio systems, more specifically in audio synchronization for multiple audio players.

The invention provides an audio signal transmission system, an audio signal transmission method and an automobile. The audio signal transmission system comprises a central computing unit and a plurality of zone controllers; the central computing unit at least comprises a host and a bus master node; the zone controller at least comprises bus slave nodes, and each bus slave node is connected in series to the bus master node through an audio bus; the bus master node is used for converting an audio signal generated by a host into a differential signal so as to sequentially transmit the differential signal to each bus slave node through an audio bus; and the bus slave node is used for receiving the differential signal and driving the local audio equipment. According to the invention, electromagnetic interference can be suppressed by utilizing the characteristics of the differential signals, so that the tone quality is remarkably improved, and better auditory experience is brought to a user; and one audio bus is adopted for signal transmission, so that the integrity of the signals in the transmission process can be ensured, a stable and high-quality signal source is provided for an automobile audio system, normal transmission and use of various types of signals are ensured, and the tone quality is further ensured.

1. Name of the product in this design: Car Audio System. 2. Application of this design: Suitable for car, outdoor, and home audio systems, with electronic air fresheners and electronic mosquito repellent liquid. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.