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184results about How to "The applicability area is obvious" patented technology

Current-adjustable and PWM flicker controlled constant-current driving circuit and control method

The invention relates to a current-adjustable and PWM flicker control constant-current driving circuit, which comprises a power supply and protection circuit (1), an LED or LD module (2), an MCU control circuit (7), a constant-current driving and current sampling circuit (3), a reference voltage setting circuit (4), a current setting and flicker control circuit (5) and a feedback and compensationcircuit (6). The constant-current driving and current sampling circuit is used for realizing adjustment of current output. The reference voltage setting circuit is used for setting reference voltageof the output current. The current setting and flicker control circuit is used for setting a pulse or a constant current value and setting frequency and pulse width. The feedback and compensation circuit realizes current feedback and dynamic compensation of the system, achieves the purpose of stabilizing current output, and has the effects of improving the rising speed of output current and widening the width of the output current. According to the invention, the constant current or pulse current of the LED or LD module can be adjusted, PWM adjustment and flicker control of the pulse current can be carried out, and the requirement of constant current driving in an LED light source and an LD laser system in a machine vision system can be met.
Owner:CASI VISION TECH (LUOYANG) CO LTD

Method, base station and user equipment for carrying out wireless communication in wireless communication system

The invention discloses a method, base station and user equipment for carrying out wireless communication in a wireless communication system. The wireless communication system comprises a base station and user equipment, wherein the user equipment is communicated with the base station through a plurality of component carriers in a carrier aggregation manner. The method comprises allocating priority to each component carrier through the base station based on at least one of the following rules so as to enable the user equipment to select the component carrier having the highest priority from overlapped uplink sub-frames to transmit uplink signals, the rules comprising expected power loss for transmitting the uplink signals on the component carrier, burden in transmitting the uplink signals on the component carrier, number of the uplink sub-frames of the component carrier and main and secondary attributes of the component carrier for transmitting downlink signals corresponding to the uplink signals transmitted on the component carrier. According to the method, the base station and the user equipment, transmission carrier wave of a PUCCH can be adjusted flexibly, and downlink data and PUCCH transmission performance are optimized.
Owner:SONY CORP

Electronic equipment in wireless communication system and wireless communication method

The disclosure relates to electronic equipment in a wireless communication system and a wireless communication method. A plurality of cells exist in the wireless communication system; and the plurality of cells comprise a current cell and at least one neighbor cell. The electronic equipment comprises a transceiver, a first trigger circuit, a second trigger circuit and one or a plurality of processing circuits, wherein the first trigger circuit is configured to enable the transceiver to carry out first measurement reporting so as to assist in starting a relaying process for enabling the electronic equipment to communicate with the current cell via relay user equipment; the second trigger circuit is configured to enable the transceiver to carry out second measurement reporting so as to assist in starting a switching process for switching the electronic equipment to the neighbor cell from the current cell; and each processing circuit is configured to control the first and second trigger circuits so as to enable the transceiver to carry out first measurement reporting before carrying out second measurement reporting. By using the electronic equipment and the wireless communication method according to the disclosure, the continuity and effectiveness of switching can be improved, switching is guaranteed to be effectively carried out, and a signaling load of a network is reduced.
Owner:SONY CORP

Phase-cut dimming control circuit and lighting control device

The invention relates to a phase-cut dimming control circuit and a lighting control device. The lighting control device comprises a rectifying unit, a damping circuit, a conversion unit and a phase-cut dimming control circuit. The rectifying unit can be used to perform rectification on an input voltage to obtain a rectified voltage. The damping circuit can be used to attenuate the oscillation of a current following through a dimmer. The conversion unit can be used to convert the rectified voltage into a control signal to control the light emitting of a light-emitting diode. The phase-cut dimming control circuit can be used to make the damping circuit stop operating when the input voltage is a non-phase-cut voltage and make the damping circuit operate when the input voltage is a phase-cut voltage. Specifically, the phase-cut dimming control circuit may comprise a detection unit, a switching control unit and a switching unit. The detection unit can be used to detect the rectified voltage to acquire a detection signal indicating whether the input voltage is the non-phase-cut voltage or the phase-cut voltage. The switching control unit can be used to output a switching signal based on the detection signal. The switching unit can be used to make the damping circuit operate or stop operating based on the switching signal.
Owner:OSRAM GMBH

Electronic device in wireless communication system and wireless communication method

The present disclosure relates to an electronic device and a wireless communication method in a wireless communication system. The electronic device according to the present disclosure comprises: a setting unit which is configured to set configuration information for D2D communication measurement for a first user equipment (UE) served by the electronic device, wherein the configuration information contains reference signal information about a second UE of a candidate object with which the first UE conducts D2D communication; a first sending unit which is configured to send the configuration information, so as to trigger communication link quality measurement between the first UE and the second UE; a receiving unit which is configured to receive a measurement report from the first UE; a conversion determination unit which is configured to determine whether to convert the communication between the first UE and a current communication object to a communication with the second UE based on the measurement report; and a second sending unit which is configured to send conversion information when the conversion determination unit determines to convert the communication between the first UE and the current communication object to the communication with the second UE, so as to notify the first UE and the UE to conduct communication.
Owner:SONY CORP

Text recitation quality evaluation device and method

The invention relates to a text recitation quality evaluation device and method. The text recitation quality evaluation device comprises an acquisition unit, a segmentation unit, a rhythm score acquisition unit, an acoustic score acquisition unit and an evaluation unit, and is characterized in that the acquisition unit is used for acquiring a text recitation characteristic curve generated through text recitation; the segmentation unit is used for segmenting the text recitation characteristic curve so as to acquire a word recitation characteristic curve of each word in the text; the rhythm score acquisition unit is used for comparing the word recitation characteristic curve of each word with a word standard characteristic curve of each word so as to acquire a rhythm score of each word; the acoustic score acquisition unit is used for determining the recitation accuracy of each word according to the word recitation characteristic curve of each word so as to acquire an acoustic score of each word; and the evaluation unit is used for evaluating the recitation quality of the text based on the rhythm score and the acoustic score of each word. The text recitation quality evaluation device and method provided by the invention can carry out scoring in allusion to the rhythm and sound production of each word, thereby being capable of evaluating the recitation quality of the text, and enabling an evaluation result to be more accurate and to more conform to the reality.
Owner:FUJITSU LTD

Spectrum management equipment, spectrum management system, spectrum management method and computer readable storage medium

The invention relates to spectrum management equipment, a spectrum management system, a spectrum management method and a computer readable storage medium. The spectrum management device according to the present disclosure includes a processing circuit configured to: acquire a plurality of pieces of sample information for a position of a sample primary user, each of the plurality of pieces of sample information including information of a plurality of sample secondary users and cumulative interference of the plurality of sample secondary users on the sample primary user; and training a neural network model by taking the information of the plurality of sample secondary users as the input of the neural network model and taking the accumulated interference generated by the plurality of sample secondary users on the sample primary user as the output of the neural network model, and determining a parameter set of a neural network model corresponding to the position of the sample main user. Byusing the frequency spectrum management equipment, the frequency spectrum management system, the frequency spectrum management method and the computer readable storage medium, the value of the accumulated interference can be accurately calculated according to the real environment condition and the user distribution.
Owner:SONY CORP
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