30results about How to "Strong receiving ability" patented technology

Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.

Disclosed are a channel equalizer and digital television receiver using the same. The equalizer comprises a channel estimator, a channel distortion compensator and noise canceller. The channel estimator estimates an impulse response of a transmission channel from a received signal. The channel distortion compensator transforms and processes the received signal and the estimated impulse response. The noise canceller predicts and eliminates amplified noise generated during equalization.

The invention discloses a CPC (Composite Parabolic Condenser) parabola concentration solar energy heating system comprising a CPC double-parabola concentration type solar energy heating collector, a solar energy heat-storage water tank with built-in domestic hot water tank, an intelligent control system, a heating cyclic switching and cycling device, a solar-energy complementary heat source and a heating terminal. The invention solves the problems that because the installation and occupation area of the collector is large, a roof which can be provided with an effective heat collecting area can not satisfy the heating load of 40% of solar energy contribution rate mostly, the manufacturing and installing cost of the system is higher, and the collector is easy to damage and is bound to be protected from overheat in summer and freeze in winter. In the CPC parabola concentration solar energy heating system, solar energy photo-termal receiving area is smaller than a solar energy radiation receiving area, and the installation and occupation area is smaller. Compared with a vacuum tubular heat collector, the manufacture and installation cost of the CPC parabola concentration solar energy heating system is 10-20 percent lower, and meanwhile, the service life of the CPC parabola concentration type solar energy heating collector can reach above 25 years and is furthest higher than the service life of the traditional system.

The invention discloses a spring-adjusted automatic docking air supply device. The spring-adjusted automatic docking air supply device comprises a transmitting mechanism, a receiving mechanism and a mounting bracket, wherein receiving mechanism and the transmitting mechanism both adopt knuckle bearings and therefore can deflect by a certain angle, so that the transmitting mechanism and the receiving mechanism can still work normally under the complicated work conditions that the axes are not aligned in the initial state; a guiding conical mouth adopts a bell mouth and a linear guiding hole, so that the receiving capability of the receiving mechanism is stronger; the linear guiding hole can correct deflection of the transmitting mechanism to enable the axes of the transmitting mechanism and the receiving mechanism to be collinear; a positioning spring and a positioning spring adjustment hanging block are mounted in each of the transmitting mechanism and the receiving mechanism, so that the adjustment is more convenient; and the transmitting mechanism, as well as the receiving mechanism, adopts linear contact between a steel ball and a valve opening for sealing, so that the sealing effect is good. The spring-adjusted automatic docking air supply device eliminates potential safety hazards of workers in high-risk complicated environments, the production automation and the object transport automation are improved, and the production cost is lowered.

The invention discloses a four-wall helical antenna which comprises a TNC connector assembly, a PCBA, a first metal rack, a metal holder, an insulating ring, a straight metal line, an insulating rubber rod, helical metal wires, a filament plate PCBA and a second metal rack, wherein four helical grooves which do not block each other are formed at the periphery of the insulating rubber rod, the helical metal wire is mounted in each of the helical grooves, one end of the helical metal wire is fixed through the filament plate PCBA and the other end of the helical metal wire is connected to the PCBA through the first metal rack and the second metal rack, and the four helical metal wires are fixed through the insulating ring; the straight metal wire is arranged in the hollow part of the insulating rubber rod and is connected to the PCBA through the metal holder and passes through the insulating ring; the other end of the PCBA is connected to the TNC connector assembly. According to the four-wall helical antenna disclosed by the invention, the omnidirectivity of the antenna and the reception function of a dextral elementary pole are realized without being limited by direction. The performance of the antenna is further optimized and enhanced, the reception ability is relatively strong, and the antenna belongs to an omnidirectional satellite reception antenna.

The invention provides LDS (Laser Direct Structuring) coating capable of being activated by laser. The LDS coating is prepared from the following components in parts by weight: 50 to 70 parts of resin, 5 to 10 parts of LDS laser powder, 5 to 60 parts of a solvent, 10 to 30 parts of a curing agent, 2 to 10 parts of a curing accelerant, 0.5 to 2 parts of a dispersant, 0.3 to 1.5 parts of a de-foaming agent, 0 to 40 parts of filler and 0 to 1.5 parts of a flatting agent, wherein the LDS laser powder is a metal organic compound; the LDS laser powder comprises an organic matter outer layer and a metal inner layer; the organic matter outer layer is gasified under laser irradiation; the curing accelerant is a mixture of dimethylimidazole and cobalt naphthenate. According to the LDS coating provided by the invention, the dimethylimidazole and the cobalt naphthenate are used as the curing accelerant and the LDS coating can be cured within half an hour at room temperature. The LDS coating provided by the invention is applied to an antenna and the prepared antenna has a strong signal receiving capability and low production cost.

The embodiment of the invention relates to the technical field of communication terminals, and provides a window-type wireless terminal device. The wireless terminal device comprises a signal receiving main body, a fixed rack and a rotary seat. The signal receiving main body is installed on one end of the rotary seat. The other end of the rotary seat is detachably connected to one end of the fixed rack through a fastening assembly and is capable of horizontally rotating on the fixed rack. A fixing device used for fixing a window body is installed on the other end of the fixed rack. According to the invention, by fixing the signal receiving main body on the window body trough the fixing device, loosening and fastening the rotary seat through the fastening assembly so as to carry out direction adjustment in the horizontal direction on the rotary seat and carry out radio frequency signal emission direction alignment on a communication base station out of the window, and then locking the rotary seat by use of the fastening assembly so as to position the angle direction of the signal receiving main body, so that the angle of the signal receiving main body can easily and precisely correspond to a wireless signal emission angle of an outdoor communication base station, and the wireless terminal device is advantaged by strong receiving ability of wireless signals and convenient adjustment and installation.

The invention discloses a pneumatic universal butt joint air supply device. The pneumatic universal butt joint air supply device comprises two parts: an air supply mechanism and an air reception mechanism. As a spring is designed, blowing connection can be implemented and finished with in a bigger deviation range, so that the centralized positioning precision is reduced greatly when a steel ladletakes the seat, and a crane driver is more easily to operate the device, the accidents caused by damage in collision of equipment is also reduced, and the device is high in reliability; as the springis designed, the air supply mechanism can return to the initial position of the vertical direction automatically after transmission. The butt joint sealing property is guaranteed by means of a uniquespherical curved soft seal in the air reception mechanism. Functions of butt joint of mechanisms to transmit and deliver air and automatic recovery of the mechanisms can be achieved without manual operations by means of the unique structural design of the air supply mechanism, the safety problem of manual butt joint transmission in complicated working conditions is solved, and the labor intensityof staff is alleviated.

The invention provides a folding antenna. The folding antenna comprises a metal straight bar, two metal loops are sleeved on the metal straight bar and connected through elastic metal bars, and the elastic metal bar are uniformly distributed around the metal straight bar; at least one of the metal loop can slide on the surface of the metal straight bar, and the sliding friction force between the slidable metal loop and the metal straight bar is larger than the component force, which is in the axial direction of the metal straight bar, of the resultant elastic force generated when all the elastic metal bars are bent into semi-circles. The folding antenna has the capability of receiving wireless signals in every direction and is easy to set up, convenient to carry and applicable to various mobile devices.

A skin sound hearing aid device based on emotional gain belongs to the technical field of hearing aid and comprises a microphone, a hearing aid host and electrode pastes, the microphone can be independently arranged, is connected with the hearing aid host through a wire and can also be arranged on the hearing aid host, the electrode pastes adopt composite planar electrodes, the number of the electrode pastes is one or two, and the composite planar electrodes are arranged in parallel. The hearing aid is pasted on a skin surface layer behind a human ear and is connected with a hearing aid host through a lead, and a power supply is arranged in the hearing aid host. The device is novel in structure and ingenious in conception, the skin hearing effect is improved through the emotional characteristics recognized by a computer, the hearing aid effect is better, the sound frequency receiving capacity is high, meanwhile, the learning difficulty and threshold of hearing-impaired people are effectively reduced, and the effect is remarkable.

The invention provides a digital antenna. The digital antenna comprises a frame antenna and further comprises a modulator-demodulator and a WiFi module; the digital antenna modulates received analog signals into digital signals through the modulator-demodulator; the WiFi module establishes an accessible WiFi hot spot; when digital equipment is access to the WiFi hot spot through the WiFi module per se, the digital signals are transmitted to the digital equipment. The digital antenna enables the comprehensive program signals only disseminated by wireless signals to be excellently displayed on the portable digital equipment.

The invention discloses a horizontally-polarized omnidirectional antenna, and belongs to the technical field of wireless communication. The horizontally-polarized omnidirectional antenna comprises an outer cover arranged outside an upper bottom plate, wherein the upper bottom plate is connected with one end of a support post through bolts and the other end of the support post is connected with a lower bottom plate through bolts; a first antenna printed board and a second antenna printed board are arranged in the outer cover; and the bottom center of the lower bottom plate is connected with a cable output interface. The frequency range of the horizontally-polarized omnidirectional antenna is 40MHz to 1.3GHz, and the horizontally-polarized omnidirectional antenna has the characteristics of being simple in structure, small in structural volume, small in size, high in antenna radiation and reception capability, high in environmental adaptability and light in weight.

The invention discloses a high-temperature coating material for forming a weldable metal circuit. The high-temperature coating material comprises the following components in percentage by mass: 50-70%of a high-temperature-resistant resin, 15-20% of laser engraving powder, 0.5-2% of a leveling agent, 0.5-2% of an active diluent and 10-35% of a curing agent. According to the invention, the high-temperature-resistant resin formed by combining an epoxy resin, an organic silicon resin and polyphenylene sulfide has high adhesion to PPS, LCP materials, glass, ceramics, metals and other base materials; the laser engraving powder is added according to a specific ratio, and laser engraving and chemical plating are carried out after different base materials are sprayed and cured to form a conductivemetal circuit, so that the formed circuit can be subjected to high-temperature tin soldering and has outstanding high-temperature resistance; and the prepared antenna is strong in signal receiving capability, and the impedance performance of the conductive circuit is good. The invention further discloses a preparation method of the high-temperature coating material for forming the weldable metalcircuit, wherein the high-temperature-resistant resin components are good in compatibility, the coating material components are uniformly dispersed, and the operation is simple.

The invention discloses a vehicle top center control device and a control method thereof. The vehicle top center control device comprises a signal transmitting module, a signal receiving module and a center control shell, wherein the signal receiving module is arranged in the center control shell; the signal transmitting module comprises a remote controller for transmitting infrared signals; the remote controller is provided with control keys; the signal receiving module comprises a sensor for receiving the infrared signals; the sensor is connected with a controller; the sensor and the controller are arranged in the center control shell; and a PC panel is connected on the center control shell in a covering mode. According to the vehicle top center control device and the control method thereof, provided by the invention, when in use, the PC panel has relatively high receiving sensitivity, and the infrared signals can be smoothly transmitted to the sensor, thereby better realizing remote control; and the remote controller can be arranged near a steering wheel or a center console so as to be convenient for operation, so that the hand raising operation at a vehicle top is avoided, the use is more convenient and efficient and the safety is relatively high.

The present invention relates to the field of wireless communication equipment, in particular to a power wireless communication system access equipment, including: a data acquisition workstation, a dispatching/power distribution automation master station, and a device body; one end of the communication processor is electrically connected to the control host , and the other end of the communication processor is electrically connected to the protection unit; the other end of the control host is electrically connected to the main body of the equipment, and the dispatching/distribution automation master station is electrically connected to the data acquisition workstation The antenna is arranged on the back of the main body of the device; the power interface is arranged on the outer wall of the main body of the device, and the switch is arranged on one side of the power interface. Through structural improvement, the present invention has the advantages of comprehensive functions, good expansion ability, strong signal transmission and reception capabilities, high transmission efficiency, stable structure and strong practicability, thus effectively solving the problems and deficiencies in the existing devices .