618 results about "Head holder" patented technology

The invention provides a display device and a display system which can be applied to a vehicle, for example, the display device is installed on the back of a seat or a headrest. The display device provided by the invention comprises an image generation unit, a window unit and an image amplification unit. The image generation unit is used for emitting image light to the window unit. The window unit reflects the image light from the image generation unit to the image magnification unit and transmits the image light from the image magnification unit. The image magnification unit is used for reflecting the image light from the window unit to the window unit. The display device is small in size and simple in structure, and a user can watch the long-distance and large-format display effect through the window unit.

There is provided a headrest housing a dipole loudspeaker for producing sound at bass frequencies in a forward direction and in a rear direction, a response 180 degrees out of phase from respective front and rear resonating surfaces. The headrest includes a waveguide formation to isolate sound from travelling through the headrest between the front surface and the rear surface. The headrest also includes an attachment formation, and the attachment formation suspends the first frame of the dipole loudspeaker and acts as a secondary suspension system. By including waveguide formations, the sound from the front surface of the dipole speaker can be guided outside of the headrest, wherein the shortest path from the front surface to the back surface is extended to be around the outside of the headrest. Guiding the sound path to be external to the headrest, prevents internal sound guiding compressing the intended path length.

The invention relates to a carsickness control method, a storage medium, a program product, equipment, a system and a vehicle, and relates to the technical field of vehicles. The carsickness control method comprises the steps that under the condition that it is determined that a first user is in a carsickness state based on a first electroencephalogram signal, carsickness suppression operation is executed; wherein the first user is a user using the first headrest, and the first electroencephalogram signal is an electroencephalogram signal collected by the first headrest for the first user. The carsickness state can be intelligently detected in real time and effectively relieved in time, and the carsickness state of the user can be efficiently detected and relieved.

The present invention discloses a technology for measuring brain function suitable for an infant or a moving subject who cannot be controlled easily during measurement. One embodiment of the present disclosure pertains to an ultrasound device that comprises: multiple ultrasound probes that receive / transmit ultrasound signals from / to multiple brain areas via multiple head regions and are disposed corresponding to the respective head regions; a control unit that controls the respective ultrasound probes; and an image processing unit that generates brain function network information calculated from blood flow states among the respective brain areas based on measurement results acquired from the respective ultrasound probes.

A liquid discharge system includes: a first head having a first nozzle, from which a liquid is to be discharged, on a first nozzle face oriented in a first direction; a second head having a second nozzle, from which a liquid is to be discharged, on a second nozzle face oriented in a second direction different from the first direction; a head holder holding the first head and the second head; a first sealer configured to contact and seal the first nozzle face; a second sealer configured to contact and seal the second nozzle face; a first cleaner configured to clean the first nozzle face in a state where the first sealer has contacted and sealed the first nozzle face; and a second cleaner configured to clean the second nozzle face in a state where the second sealer has contacted and sealed the second nozzle face.

The utility model relates to the field of medical instruments, in particular to an auxiliary sleep device with a sound wave hypnosis function, which comprises a base, a support block, a seat, a backrest, a headrest, an electric push rod and the like, the upper side of the middle of the base is connected with the support block, the upper side of the support block is connected with the seat, the left part of the seat is rotatably connected with the backrest, and the upper side of the backrest is connected with the headrest. The left part of the backrest is rotationally connected with an electric push rod. The window shade is put down by pushing the connecting frame to move and then reversely pulling the pull bead chain, and then sound waves are sent out by the ultrasonic sleep aiding device for hypnosis to assist sleep, so that the sound waves can be used for hypnosis of a user to assist sleep, relax the brain and accelerate falling asleep, and meanwhile, the window shade can be used for shading. A user is in a dark environment, light stimulation is avoided, the sleep quality is improved, and use is convenient.

The invention is suitable for the technical field of rail transit equipment, and provides an integrated adjustable cab seat with an active noise reduction function. Comprising a seat assembly and an active noise reduction device, the active noise reduction device comprises a controller and a noise reduction part; the seat assembly comprises a supporting framework and an adjusting framework, the supporting framework comprises a supporting part, a cushion part and a backrest part, the outer side of the supporting part of the supporting framework is sleeved with a mounting box, and the controller is arranged in the mounting box; the cushion part is provided with a cushion, and the backrest part is sleeved with a backrest; an adjusting framework with the adjustable height is installed on the top of the back portion of the supporting framework, and the noise reduction component is installed on the backrest portion of the supporting framework. And the headrest is arranged on the adjusting framework. The cab seat is high in integration level and good in integration, the size is reduced, the available space of the cab is increased, and the controller is installed below the seat and does not need to occupy the space of a control cabinet in the cab.

A headrest apparatus, a method, and a computer program product is provided for providing surround sound experience to user. The headrest apparatus receives an audio portion of a media content from an electronic device. The headrest apparatus determines a plurality of audio channel signals from the received audio portion. The determined plurality of audio channel signals includes at least a first set of audio channel signals. The headrest apparatus further controls a first audio rendering device, embedded at a first position in the headrest apparatus, to output a first audio channel signal of the first set of audio channel signals. The headrest apparatus further controls a second audio rendering device, embedded at a first position in the headrest apparatus, to output a second audio channel signal of the first set of audio channel signals.

There is provided a conveyance seat that allows speakers to be easily assembled to a headrest. A conveyance seat includes a headrest; and right and left speakers provided inside the headrest. The headrest includes a speaker assembly provided inside the headrest and configured to assemble the speakers. The speaker assembly includes right and left speaker holding portions that are provided at right and left side portions of the headrest, and that hold the right and left speakers, respectively, in a state where the right and left speakers are exposed to a seat front side, and a connecting portion that connects the right and left speaker holding portions, and that is formed integrally with the right and left speaker holding portions.

The invention relates to the technical field of automobile seat headrests, in particular to an automobile seat folding headrest mechanism, an automobile seat and a method, an arc-shaped rod is arranged to penetrate through an opening of a shielding part, when a headrest is folded and reset, the arc-shaped rod can achieve arc-shaped rotation of a headrest rod, and the headrest can be folded and reset relative to a straight rod. The opening of the shielding piece can have a small opening size, the gap between the shielding piece and the periphery of the headrest rod is small, when the headrest rotates forwards to be folded, the arc-shaped rod moves along an arc line, it is ensured that the stroke of the headrest rod is always kept within the range of the rectangular hole of the shielding piece, the appearance of the shielding mechanism is not affected while the requirement for folding movement of the headrest is met, and the shielding mechanism is convenient to use. And the protection effect on the folding mechanism is also facilitated.

The present disclosure discloses a vehicle headrest including a main body having a receiving chamber and a first sound hole, and a speaker module including a housing fixed to the main body and including a sound outlet, a speaker unit including a diaphragm, and an acoustic inverting tube. The housing further comprises a back sound hole communicated with the coupling back cavity; the acoustic inverting tube is received in the coupling back cavity. The sound wave output from the back sound hole has a first sound phase, the sound wave output from the sound outlet has a second sound phase, a difference between the first sound phase and the second sound phase is in a range of 2π / 3-4π / 3. The vehicle headrest in the present disclosure has better sound quality and higher acoustic privacy.

The utility model provides an ophthalmologic post-operation multi-functional prone pillow relates to ophthalmologic field, including headrest and breathing through-hole, the inside of headrest is provided with breathing through-hole, the headrest surface of breathing through-hole both sides is provided with sensing area, the inside of headrest at the bottom of sensing area is provided with pressure sensor, one side of headrest bottom is provided with broadcast component, and the broadcast component is provided with the pressure sensor. The integrated prone position prone pillow is formed by the head pillow and the abdomen pillow, the comfort degree of a patient in the prone position prone posture is increased, and in the using process, if the head of the patient moves and deviates, the pressure sensor in the induction area induces pressure changes and then transmits signals to the broadcasting assembly; when the broadcasting assembly sends out a reminding sound effect, corresponding reminding voice is sent out according to a signal sent by a corresponding pressure sensor, a patient is reminded to conduct adjustment in time, and therefore it is guaranteed that good postoperative recovery observation is conducted on the correct prone position and the correct prone posture of the patient, and the practicability of the device is improved.

A seat assembly is provided. The seatback for a first seat is configured to receive an occupant in a vehicle. A headrest is coupled to the seatback and includes at least one loudspeaker and a lattice structure. At least one loudspeaker is positioned in the headrest and is configured to transmit an audio output signal from the headrest. The lattice structure includes a first section positioned proximate to the at least one loudspeaker to enable the audio output signal to pass therethrough and a second section to prevent the audio output signal from leaking to a second seat. The first section is formed at a first density and the second section is formed at a second density. The first density of the first section is less than the second density of the second section to increase an acoustic transparency of the audio output signal.

Described herein are methods and systems for a vehicle system which provide inbuilt road noise cancellation in the vehicle. In one or more embodiments, a method for road noise cancellation comprises using a head-tracking device to monitor an occupant ear position, capturing airborne noise using a feedforward microphone and a headrest microphone of a zone in which the occupant ear is positioned, updating acoustic path information according to the occupant ear position(s) and speaker position(s) within the zone, generating a noise cancellation signal using sampling rate greater than 2 kHz, and outputting the noise cancellation signal via a headrest speaker located near the zone in which the occupant ear is positioned to at least partially reduce a road noise sound level in the zone.

A system for positioning and monitoring an animal during microscopy may include a base supporting the animal, a head holder attached to the base and securing the animal's head, a body holder attached to the base and restraining the animal's body, at least one sensor measuring a physiological parameter of the animal, and a controller receiving and processing data from the at least one sensor. The base may comprise a scissor lifting jack for height adjustment. The head holder may include a ball joint for angular adjustment. The body holder may comprise a swaddle. Sensors may include an accelerometer to detect motion and a thermocouple to measure cranial window temperature. The system may also include a camera to capture images during microscopy.

The invention discloses a method for improving privacy of conversation in a vehicle, and relates to the field of privacy conversation in the vehicle. Comprising the following steps: (1) using a microphone at a back row seat to pick up back row human voice, and then implementing the following steps (2)-(4) at the same time; (2) a microphone, a headrest loudspeaker and a door loudspeaker at the main driving position are used for active noise control aiming at counteracting human voice in the back row; and (3) playing a masking sound source from the headrest loudspeaker and the door loudspeaker, or a distorted human voice signal generated by performing signal processing on the human voice in the back row, or a signal generated by superposing the masking sound source and the distorted human voice signal. And (4) using headrest loudspeakers and door loudspeakers of a plurality of seats in the vehicle to play the inverted sound signal and the masking sound signal in the active noise control in a bright and dark sound area. According to the invention, the discomfort of the main driver caused by the masking sound is reduced while the main driver cannot hear the voice needing to be protected clearly.

The present invention belongs to the technical field of head positioning for PET / MR, and specifically refers to a head positioning device for PET / MR, including a positioning arc plate, a headrest type fixing mechanism and a reflux type mist elimination mechanism, wherein the headrest type fixing mechanism is arranged on the positioning arc plate, the reflux type mist elimination mechanism is arranged on the headrest type fixing mechanism, the headrest type fixing mechanism includes a soft pillow mechanism and a head support mechanism, the soft pillow mechanism is arranged on the upper wall of the positioning arc plate, and the head support mechanism is arranged on the side walls at both ends of the positioning arc plate. The present invention provides a head positioning device for PET / MR that can independently and adjustable clamp the patient's head and face, can disinfect the contact surface between the positioning structure and the patient after use, and can provide soundproof protection for the patient's ears.

The invention discloses a transmission path grading detection and reference sensor selection method based on in-vehicle active noise control, and belongs to the field of active noise control. The method comprises the steps that sensors are arranged at suspension rod pieces of a to-be-tested automobile, and microphones are arranged at seat headrests of the to-be-tested automobile; obtaining an error noise signal collected by the microphone and a reference vibration signal collected by the sensor when the to-be-tested automobile runs under the test working condition; a main control area and a reference vibration signal group are selected, and sensors corresponding to reference vibration signals which are not selected into the reference vibration signal group are removed; according to the method, sensors are arranged at wheel centers, a front auxiliary frame and a rear auxiliary frame of a to-be-detected automobile, error noise signals and reference vibration signals are obtained, L reference vibration signals with the highest multi-coherence are obtained through traversal optimization, and finally active noise control is conducted through a road noise active control system on the basis of the L reference vibration signals. According to the invention, the integrity and the feasibility of transmission path detection are improved, and the test cost is also saved.

This invention discloses a centerless cylindrical grinding machine device for valve guides, belonging to the field of valve guide grinding. The device is used for infeed grinding of valve guides and includes a machine table, an adjusting frame and a grinding head holder respectively disposed on both sides of the machine table, and a workpiece support frame disposed between the adjusting frame and the grinding head holder and fixedly mounted above the machine table. This invention achieves axial elastic limiting of the valve guide through a clamping assembly and a reversing assembly, and, in conjunction with radial support from the workpiece support frame, effectively suppresses grinding movement and wobble of slender workpieces, improving grinding stability, coaxiality, and dimensional accuracy. After processing, it can automatically switch to a clamping and transfer mode for automatic unloading, achieving a high degree of automation. Simultaneously, cutting fluid can be directionally introduced into the inner hole of the valve guide and overflowed from a high position, forming internal convection heat transfer and significantly improving the cooling effect. After grinding, by flipping the drain hole, residual fluid in the inner hole is quickly drained by gravity, further stabilizing machining accuracy.

The invention relates to the technical field of circuit testing, in particular to a music headrest production testing tool which comprises a testing table, the upper end of the testing table is fixedly connected with a supporting frame, the middle of the supporting frame is fixedly connected with a display screen, the upper end of the testing table is fixedly connected with a positioning block, and the side end of the positioning block is fixedly connected with a clamping block. An arc-shaped concave surface is arranged at the upper end of the positioning block, a clamping groove is formed in the upper end of the clamping block, the positioning block and the clamping block are matched with each other to be used for positioning and fixing the headrest, a communicating column is fixedly connected to the side end of the headrest, a clamping groove is formed in the outer side wall of the communicating column, a conductive column is fixedly connected to the interior of the communicating column, and the conductive column is connected with a sound box in the headrest. According to the invention, the connection between the test structure and the conductive column can be tighter, the repeated resistance of the conductive column is more convenient, and the detection efficiency is improved.

1. Name of the product in this design: Chair headrest (801). 2. Purpose of this design: For use as a headrest for a chair. 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 rendering 1.

The utility model relates to the technical field of medical appliances, and discloses an auxiliary fixing base for installing a head frame of a brain stereotactic apparatus, which comprises a base body, and a fixing groove for clamping and fixing the head frame of the brain stereotactic apparatus and a headrest part for supporting the head of a patient are arranged on the top surface of the base body. The utility model provides an auxiliary fixing base for installing a head frame of a brain stereotactic instrument, which comprises a base body, a fixing groove which is arranged on the top surface of the base body and can be used for clamping and fixing the head frame of the brain stereotactic instrument, and a headrest part which is used for supporting the head of a patient, therefore, the problem that the head frame is deflected to influence the operation effect due to shaking when the head frame of the brain stereotactic instrument is installed can be fundamentally solved, absolute stability and safety in the operation process are ensured, more comfortable treatment experience is brought to a patient, and the success rate and the treatment effect of the operation are remarkably improved.

The utility model discloses a chair back and a seat. The chair back comprises a back frame, an elastic belt and a physiotherapy bag. Two ends of the elastic band are fixedly connected to the back frame. The physical therapy bag has flexibility and is installed on the elastic band, and the elastic band can be bent after being subjected to external force so that the physical therapy bag can be bent. Head contours and sizes of different users are different, a headrest structure in the prior art is fixed, a physical therapy bag in the headrest structure is also fixed in shape, only the fixed part can be subjected to physical therapy, and the headrest cannot be adaptively attached to the heads of different sizes and shapes for physical therapy. According to the chair back disclosed by the embodiment of the utility model, the elastic band is arranged at the upper end of the back frame, and the flexible physiotherapy bag is arranged on the elastic band, so that when the head of a user leans on the elastic band, the elastic band deforms to drive the physiotherapy bag to deform together, the physiotherapy bag can be bent and better attached to the head, and the physiotherapy effect is improved.

The present invention provides an infant chest X-ray fixation auxiliary device for the imaging department, which belongs to the technical field of infant equipment in the imaging department. It comprises an auxiliary fixing seat, to which a protective lead cloth is fixedly connected, and a headrest is mounted on the auxiliary fixing seat, and a head protection cover located outside the headrest is arranged on the auxiliary fixing seat, and a lightweight cavity is opened in the auxiliary fixing seat. The present invention provides a head protection cover, a protective lead cloth and a protective lead belt, so that the entire chest X-ray fixation auxiliary device can perform comprehensive position fixing and protection on infants, and the opening, closing and fixing operations of the head protection cover and the protective lead cloth are simple and convenient, and easy for medical staff to use. The provision of the protective lead belt enables the chest X-ray examination area to be adjusted according to the body shape of the infant, so that only the area that needs to be examined is exposed, and other parts of the body are comprehensively protected, thereby improving the adaptability and safety of the entire device.

An adjustable headrest aid that includes the following: i) a body 101 which a user can access as a pillow, wherein the body 101 is made with a layer of fur to provide the user with a soothing experience while the user places the body 101 under the headboard while resting; ii) an artificial intelligence-based imaging unit 102, installed on the body 101 and paired with a processor to capture and process multiple images of the environment in order to determine the dimensions of the head and neck area of ​​the user resting above the body 101, wherein the microcontroller, on this basis, operates an air compressor 201 installed with the body 101 to inflate an inflatable element 202 configured inside the body 101 to provide the user with a comfortable resting experience; iii) an LDR sensor (Light Dependent Resistor) configured on the body 101 to monitor the ambient light intensity, the microcontroller, on the basis of which, actuates an L-shaped telescopic rod 103 attached to the body 101 to extend and unfold a curved plate 104 attached to the rod 103 above the user's head to provide a shade over the user; iv) several motorized hinge joints 105 integrated into the plate 104, wherein, upon successful extension of the rod 103s, the microcontroller actuates the hinge joints 105 to modulate the shape of the plate 104 with regard to providing shade from multiple directions and effectively protecting the entire face area of ​​the user from incident light; and v) an electronic nozzle 107, which is connected to a chamber 106 containing liquid fragrance, and which is built into the body 101, wherein the microcontroller detects an unpleasant odor in the environment via an odor sensor located on the body 101, and activates the nozzle 107 to release the liquid fragrance into the environment in order to eliminate the unpleasant odor.

The utility model relates to the technical field of office chairs, in particular to a connecting rod linkage folding type headrest office chair adjusting mechanism which comprises an office chair adjusting mechanism body and an office chair, the office chair adjusting mechanism body is arranged on the office chair, a positioning headrest plate is arranged on the office chair adjusting mechanism body, and the connecting rod linkage folding type headrest office chair adjusting mechanism is arranged on the office chair adjusting mechanism body. The two sides of the positioning headrest plate are connected with folding headrest plates respectively, hinge shafts are installed between the folding headrest plates and the positioning headrest plate, the positioning headrest plate is of a U-shaped structure, an adjusting positioning seat is integrally arranged on the portion, on the inner side of the U-shaped structure, of the back of the positioning headrest plate, and the interior of the adjusting positioning seat is of a transverse through structure. According to the connecting rod linked folding headrest office chair adjusting mechanism, a basic positioning structure is formed through the positioning headrest plate, the rotatable folding headrest plates are arranged on the two sides of the positioning headrest plate, the neck supporting part can be limited, meanwhile, adjusting treatment is conducted in a connecting rod linkage mode, operation is convenient, and use is easy.

A head physiotherapy machine comprises a shell, a water guide filter head, a water pump, an electric heater, a water outlet pipe, a shower head and a main control board, the shell comprises a water cavity with an upper opening, a head soaking cavity formed in the water cavity, a headrest and a device cavity, the headrest and the device cavity are arranged on a front wall plate of the water cavity and intersect with each other, and the headrest is opposite to the head soaking cavity; the water guide filter head is installed on a bottom plate of the water cavity, the water pump, the electric heater and the main control board are arranged in the device cavity, one end of the water outlet pipe is fixed to the bottom plate of the water cavity, and the other end of the water outlet pipe is connected with the shower head corresponding to the bubble head cavity. The water guide filter head, the water pump, the electric heater and the water outlet pipe are sequentially communicated. Through the arrangement of the soaking head cavity, water in the soaking head cavity is separated from the water cavity, the temperature of the soaking head cavity is kept, and the head is separated from traditional Chinese medicinal materials during traditional Chinese medicine treatment.

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.

The present invention comprises a number of layered stainless steel plates, a plurality of bolts and tamper-resistant screws, and a length of cable. A temporary bolt head holder can be included to keep the bolt heads in place. The plates can be held apart by a plurality of springs temporarily placed between the plates. The cable is then wrapped around the catalytic converter and threaded between openings between the plates. After this, the bolt holder can be removed. When the bolts are tightened, they create a “clamping” force that securely holds the cable in place. A protective cover is then placed over the catalytic converter and secured to the other plates and cable using tamper-resistant screws. The cable is also wrapped around other underbody structure of the vehicle to further compound the amount of anti-theft security that is provided by the lock and assembly of the present invention.