47results about How to "Increase reception strength" patented technology

A wrist-worn electronic device includes an antenna that receives externally transmitted radio signals; a case of which at least part is made of a non-conductive material; an information display unit that is housed inside the case, is flat, and is made of a non-conductive material; a back cover that is attached to the case and is made of a conductive material; and a reception unit that is positioned and housed inside the case between the information display unit and the back cover, and processes a reception signal based on radio signals received by the antenna. The antenna has an antenna electrode that is disposed and formed as a line around the outside of the information display unit. The back cover is connected to the ground potential of the reception unit and reflects the radio signals.

To suppress adverse effects caused by side lobes of an antenna array when an AWV to be used for communication is determined based on a transmission/reception result of a training signal. A first transceiver generates a fixed beam pattern and transmits a training signal. In that state, a second transceiver receives the training signal while scanning for the main beam direction, and thereby determines a plurality of direction of arrivals (DOAs). Next, the second transceiver receives the training signal in a state where the signal receptions from the plurality of DODs are restricted one by one (e.g., a null direction or a direction close to the null direction is fixed in the DOA), and calculates the change of the signal characteristics from that obtained in the first reception. The transceivers obtain and use at least one AWV having the main beam direction or a sub-beam direction close to the main beam pointing to one of the plurality of DOAs except for the DOA for which the change is lower than a predefined threshold.

The invention provides an audio processing device and system for far-field pickup and mobile charging, and the device comprises a Bluetooth module, a central processor, a waking-up module, a voice input module, a power module, a cellphone, an APP application, and a display screen. The power module is used for supplying power to the device, and the waking-up module wakes up the voice input module. The voice input module collects the external sound information, and the central processor carries out the noise reduction, reverberation removal, echo removal and voice enhancement of the sound information. The Bluetooth module enables the processed audio information to be transmitted to the cellphone, and the cellphone APP carries out the voice recognition of the audio information, and transmits a waking-up instruction to the waking-up module. The display screen displays the recognized text information in real time. The device provided by the invention achieves a purpose that a person with hearing impairment can clearly know the speaking content of a speaker through the text information displayed by the display screen, brings convenience to the person with the hearing impairment for conversation.

The invention discloses a communication optimization method and device for an IRS auxiliary communication system. The communication optimization method comprises the steps of determining an initial position of UE taking the initial position of the UE as a sphere center, and taking a reference position in the space sphere; determining a preliminary channel and a reference channel between the UE andthe IRS according to the preliminary position of the UE and the distance between the reference position and the IRS position; determining a channel between the AP and the IRS according to the distance information between the position of the AP and the position of the IRS; determining a preliminary matrix and a reference matrix of the IRS according to the preliminary channel and the reference channel between the UE and the IRS and the channel between the AP and the IRS; realizing communication between the AP and the UE based on the preliminary matrix and the reference matrix of the IRS, determining channels corresponding to different reflection coefficient matrixes of the IRS, and selecting the matrix with the maximum channel strength as an optimal matrix; and realizing effective communication between the AP and the UE based on the optimal reflection coefficient matrix. According to the invention, the optimization of the IRS auxiliary communication system is realized.

A receiving module for a display device includes a receiving frame and a receiving container. The receiving frame includes a bottom part and a plurality of side parts extending from a peripheral portion of the bottom part creating a receiving space. The receiving container includes a bottom plate and a plurality of sidewalls. The bottom plate is disposed on the bottom part. Each of the sidewalls includes a first side plate extending from an edge portion of the bottom plate and coupled to a corresponding side part to face an outer surface of each of the side parts, and a second side plate bent at an upper end of the first side plate to face an outer surface of the first side plate. Thus, the strength of a display device against an external force, such as a bending stress or a twisting stress, may be improved.

A medical system includes a capsule type medical apparatus introduced into a subject and having an antenna having directionality and a communication unit which executes a communication through the antenna, an external antenna, which is disposed outside of the subject and has an antenna having directionality and an antenna disposed together with the antenna and having directionality in a direction different from the antenna, and an external machine having a selection unit which selects any of the antennas in the external antenna and a second communication unit which executes a communication with the first communication unit through the antenna whose polarized wave surface is selected by the selection unit.

The invention provides a multi-antenna selectivity transmit-diversity method of a wireless OFDM/TDD system, comprising the following steps: receiving intensity detection: a base station receiving unit carries out receiving intensity measurement to the received signals of the different antennas; antenna serial number feedback; the base station receiving unit carries out ordering to the receiving signal intensity of each antenna and feeds the ordering result back to a base station control unit; selectivity transmission: the base station control unit selects a transmission antenna to carry out signal transmission according to the ordering result. In the invention, the physical layer of the base station carries out detection ordering to an ascending receiving signal of each antenna, so as to dynamically select the transmitter antenna, increase the signal receiving intensity of a terminal side, achieve the selective transmit-diversity purpose and improve the communication quality.

The invention discloses a Raman spectroscopic detection, comprising an excited laser, a narrow-band interference filter, a power-attenuating optical filter, a radial polarized light generator, reflectors, a Rayleigh optical filter, a microscopic lens, a Raman enhanced substrate, a co-focusing pin hole and a receiving spectrometer. According to the invention, a cylindrical light beam generated by the excited laser is converted into directional radial polarized laser light by using the radial polarized light generator; the directional radial polarized laser light is scattered by the Raman enhanced substrate so as to generate directionally-distributed directional Raman scattered light; most of the directional Raman scattered light can be received by the microscopic lens so as to allow the receiving intensity of the scattered light to be increased by 10<2> to 10<4> times compared with the receiving intensity of diffuse scattered light; so the receiving efficiency of Raman scattered light is improved, and the sensitivity of Roman detection is enhanced.

The invention discloses a visible light communication receiving device based on a RGB-LED wavelength-division multiplexing technology. The visible light communication receiving device comprises a collimated lens, a light-separating device and light detecting receiving devices, wherein, the collimated lens is used for collecting visible light form a RGB-LED light source and adjusts the visible light into parallel lights to enter the light-separating device, the received parallel lights are separated into red light, green light and blue light by the light-separating device, and the light detecting receiving devices are used for receiving and detecting the three kinds of color light. According to the visible light communication receiving device, white light transmitted by the light source is broken into R light, G light and B light through the collimated lens and the light-separating device, different signals are loaded by the light with different colors and are received by the three light detecting receiving devices respectively, and the visible light communication speed is improved greatly.

The invention provides a wireless charger, which comprises a charging base body and a charging contact. The charging base body comprises a wireless charging module. The charging contact and the charging module are electrically connected. The charging base body also comprises a GPS transmitting antenna adjacent to the wireless charging module, and a GPS contact electrically connected with the GPS transmitting antenna. The invention also provides a vehicle-mounted wireless charging system composed of the above wireless charger, and a power supply vehicle charging device matched with the wireless charger. Based on the above vehicle-mounted wireless charging system, the GPS signal reception strength of electronic equipment is improved.

The invention discloses an adjusting device for an aerospace radar, and the device comprises a body and a base, wherein the body is provided with a transmission cavity that is provided with a first transmission mechanism, the right side of the transmission cavity is provided with a first rectangular groove, a first rotating shaft is rotatably installed between the first rectangular groove and thetransmission cavity, the left end of the first rotating shaft extends into the first rectangular groove and a first bevel gear is fixedly installed, the right end of a first rotating shaft extends into the first rectangular groove and a first gear is fixedly installed, a second rectangular groove is provided on the right side of the first rectangular groove, a second transmission mechanism is provided in the second rectangular groove, a second rotating shaft is rotatably installed between the left end wall of the second rectangular groove and the right end wall of the first rectangular groove,and the left end of the second rotating shaft extends into the first rectangular groove and is fixedly installed with a second gear meshed with the first gear.

The invention discloses a simple mobile phone protective case. The simple mobile phone protective case comprises a protective shell and a signal enhancer, four corners of the protective shell are provided with locking and holding bases, the middle part of the protective shell is provided with a groove, two sides of the groove are provided with fixing slots, two fixing slots are set, and a camera hole is arranged in the upper right of the protective shell; the signal enhancer is located in the groove and fixed to the groove; and the signal enhancer internally comprises an inductor, an antenna module and an aluminum sheet, the inductor is located at the left side of the antenna module and is connected with the antenna module, and the aluminum sheet is located under the inductor and the antenna module and is connected with the antenna module. The simple mobile phone protective case has the advantages of being simple in structure, enhancing mobile phone signals and being convenient to install.

The invention belongs to the technical field of mobile phone parts, and particularly relates to a manufacturing method of a mobile phone backboard with metal color. The method comprises the followingsteps: S1, selecting 4-6mm transparent glass as a glass substrate; S2, forming a silk making layer by adopting a subtraction concave line pattern brushing mode; S3, printing brightening ink on the surface of the silk making layer, and sintering for the first time to obtain a silk making brightening layer; S4, printing a protective ink layer on the surface of the silk-making brightening layer, andthen sintering for the second time to obtain a metal color glass plate. A mode of coating metal color ink on a glass substrate is adopted, the metallic glass ink can stably generate color, the metal color glass plate can be cured by adopting a common baking curing molding process, metal color display of different styles can be formed by adding metal powder or organic toner according to different metal colors needing to be displayed, and the metal color glass plate is proper in apparent brightness and color and luster, is also suitable for the development trend of a mobile phone back plate, andimproves the transmitting and receiving strength of mobile phone signals.

The invention relates to an anti-interference antenna for a wireless tire pressure receiver. An insulated auxiliary wire rod is arranged side by side on a strip-shaped insulated main wire rod; a group of power lines is inserted into the main wire rod along the length direction; an antenna is inserted into the auxiliary wire rod along the length direction; the antenna is coated independently in the insulated auxiliary wire rod, so that the antenna and the power lines can be prevented from being interfered with each other; and moreover, more than one gap can be further formed in the main wire rod or the auxiliary wire rod along length direction, so that the insulating effect can be further improved.

The invention discloses a signal device for fire-fighting lifesaving. According to the technical scheme, the signal device is characterized in that the signal device comprises signal terminal equipment and a bottom plate used for installing the signal terminal equipment, two symmetrical driving wheels are fixedly installed on the lower surface of the bottom plate, and the two driving wheels are sleeved with two crawler belts; a mounting groove is formed in the upper surface of the bottom plate, a plurality of damping mechanisms are fixedly mounted in the mounting groove, a protection box is mounted at the upper ends of the damping mechanisms, a first moving mechanism and a second moving mechanism are fixedly mounted in the protection box, and the first moving mechanism and the second moving mechanism are the same in structure. A first servo motor is fixedly installed on the upper surface of the protection box, a crawler belt arranged on a driving wheel in a sleeving mode is beneficial to improving the walking capacity of the device on a muddy road surface and a road surface with a large slope, an arranged damping mechanism is beneficial to improving the overall anti-seismic buffering performance of the device, and the device is prevented from being damaged.

The invention belongs to the laser technology and relates to the improvement of a four-frequency laser gyro left and right circularly polarized light gyro signal separation device. It includes an output reflector [1], a combined light prism [7], two 1/4 wave plates [3] and two analyzers [4], and is characterized in that each 1/4 wave plate [3 ] and the output reflector [1] are installed with splitting prism [6], compensating prism [2] and reflector [5]. The invention can accurately realize signal separation, greatly reduces the signal separation error, and effectively improves the precision of the gyroscope. The output polarized light signal is in the form of positive emission, which increases the receiving strength of the signal and improves the signal-to-noise ratio.

A wireless power transmitting method performed in a wireless power transmitting apparatus wirelessly transmitting power includes determining reception strength of a short-range wireless communication channel, adjusting an interval of a short beacon signal in response to a change in reception strength; and transmitting the short beacon signal at the interval.

The invention discloses a measuring device for ultra-deep resistivity. A transmitting control and power amplifier module selects a D-type power amplifier with high efficiency, and outputs a high-powersine wave transmitting signal of 1KHz to dozens of KHz according to the need; the signal excites a periodic electromagnetic wave signal in a stratum through a transmitting antenna; the measuring device transmits a synchronous pulse every time transmitting a measuring period, so that each receiving module is triggered to collect the signal output by a receiving antenna; meanwhile, after being superposed, the sampled data is transmitted to a measurement control module in a signal modulation communication form through a single-core cable; a DSP main controller performs DPSD digital phase-sensitive detection conversion on each receiving channel signal to obtain the signal amplitude ratio and the phase difference of each receiving channel; and finally, a stratum resistivity result is inverted.The single-core cable also serves as a communication carrier while transmitting a power supply, the modules are in communication connection in a signal modulation communication form, and meanwhile, the synchronous pulse is also transmitted through the single-core cable.

The invention relates to the technical field of communication equipment, and discloses an automobile top fin antenna capable of enhancing the signal intensity. The automobile top fin antenna comprisesa shell, a main antenna oscillator, a power supply and a circuit board, wherein a signal enhancement rod with an inclination angle similar to that of the top of the shell is fixedly mounted at the outer top of the shell; a signal receiving end for receiving signals is arranged at the inner top of the signal enhancement rod; a rectangular telescopic rod inlet/outlet is outwards formed in the lowerpart of the right side wall of the shell; an electric baffle capable of moving up and down is upwards arranged in the telescopic rod inlet/outlet; the upper right side of the telescopic rod base is arranged to be of an inclined surface structure and is fixedly provided with a set of telescopic rods, the top ends of the telescopic rods are provided with signal receiving ends, and the signal receiving ends at the top ends of the telescopic rods are electrically connected with auxiliary antenna oscillators arranged on the left side in the telescopic rod base. The automobile top fin antenna has the advantages that the signal receiving capacity can be automatically adjusted, normal operation of communication in the automobile is ensured, automatic operation is achieved, and the use value is high.