7results about How to "Solve crosstalk" patented technology

The invention discloses a phase frequency detector, a phase-locked loop and a chip, the phase frequency detector comprises a first trigger, a second trigger, a first AND gate and a second AND gate, the CK end of the first trigger is connected with a reference signal, the D end of the first trigger is connected with a high potential, the first input end of the first AND gate is connected with the Q end of the first trigger, and the second input end of the first AND gate is connected with the Q end of the second trigger; the output end of the second AND gate is connected with the RST end of the first trigger, the CK end of the second trigger is connected with a feedback signal, the D end of the second trigger is connected with a high potential, the first input end of the second AND gate is connected with the Q end of the first trigger, the second input end of the second AND gate is connected with the Q end of the second trigger, and the output end of the second AND gate is connected with the RST end of the second trigger; the first trigger and the first AND gate are powered by a first power supply, the second trigger and the second AND gate are powered by a second power supply, and the first power supply and the second power supply are the same or different power supplies. According to the invention, the linearity of the phase frequency detector is improved, the low-frequency noise of the phase-locked loop is reduced, and the area and the power consumption are reduced.

The present application belongs to the field of display driving technology, and specifically relates to a display driving device, a display driving method and a display panel. The display driving device includes a picture detection module and a display driving module; the picture detection module is used to determine whether the next frame of the display picture is a special picture, and when it is detected that it is not a special picture, the scan line is driven in a row-by-row opening manner, so as not to affect the display effect of the normal picture; when it is detected that it is a special picture, the first group of display driving signals output by the display driving module is used to control the data voltage change in the scanning line switching process within a target threshold, so that no coupling is caused to the common voltage, so that the common voltage does not shift, thereby solving the problem of color cast or crosstalk in the entire picture caused by the common voltage shift, and improving the display effect of the picture.

The embodiment of the invention relates to the technical field of connectors, and discloses a connector and a method for preparing the connector, the connector comprises an insulation body and an isolation assembly, the insulation body is internally provided with a plurality of conductive terminal groups, and the isolation assembly is arranged in the insulation body. The conductive terminal group comprises a plurality of first conductive terminals extending along a first direction and a plurality of second conductive terminals extending along a second direction perpendicular to the first direction, the isolation assembly comprises a first isolation unit and a second isolation unit, the first isolation unit is arranged between the adjacent first conductive terminals, and the second isolation unit is arranged between the adjacent second conductive terminals. The second isolation unit is arranged between the first conductive terminal and the second conductive terminal, and the first isolation unit and the second isolation unit are arranged in a mutually perpendicular manner and are fixedly connected. According to the embodiment of the invention, the problem of crosstalk between the conductive terminals in the prior art can be effectively solved.

The embodiments of the present disclosure provide a radio frequency interface sending device and sending method, a radio frequency interface receiving device and receiving method, a chip, a base station and a terminal device. The radio frequency interface sending device includes a sending controller, which includes a service data interleaving unit, a delay adjustment amount determination unit and a framer unit. The service data interleaving unit is configured to serially interleave data of multiple data channels according to a current interleaving pattern to form interleaved data including one or more cycles. The delay adjustment amount determination unit is configured to determine the delay adjustment amount of each data channel corresponding to the current interleaving pattern. The framer unit is configured to form a service frame according to the interleaved data, and the framer unit is also configured to form a management frame.

The application provides a multi-core optical fiber and a butt joint method thereof, relates to the technical field of optical fibers, and aims to solve the technical problem of crosstalk between an identification layer and its adjacent fiber cores during optical fiber communication. The multi-core optical fiber comprises a cladding, an identification structure and a plurality of fiber cores; the plurality of fiber cores are uniformly arranged in the cladding, and the cross section of the cladding is circular; the cladding is provided with an identification hole, the identification hole is arranged in parallel with the fiber cores, and the identification hole penetrates through the entire cladding along the extension direction of the cladding; the identification structure is arranged in the identification hole, and the identification structure is arranged in offset with the symmetry axes of any two fiber cores and the central axis of the cladding; the identification structure comprises an identification layer arranged on the inner wall of the identification hole, and the identification layer surrounds a hollow; the identification layer is configured to form a refractive index difference with the cladding, and can absorb light introduced therein. The multi-core optical fiber provided by the application is one of space division multiplexing technical means, and is suitable for optical communication.

The present invention relates to a high-performance portable electronic drum, comprising a drum skin, a membrane switch, a surface shell, a buzzer, and a bottom shell. The bottom of the drum skin is provided with closely arranged polygonal cavities, a membrane switch is further provided between the drum skin and the surface shell, and the membrane switch comprises a surface isolation layer, an upper film, a middle isolation layer, and a lower film from top to bottom. The upper film and the lower film are combined to form a conduction area. A plurality of buzzers are provided below the surface shell, and the plurality of buzzers are respectively located directly below a plurality of drum discs. A bottom shell fixedly connected to the surface shell is further provided at the bottom of the surface shell. The membrane switch of the present invention adopts a four-layer structure, which eliminates false triggering caused by vibrations generated by striking adjacent drum discs, effectively solves the problem of crosstalk, and at the same time, has a good striking feel and improves the triggering sensitivity of the drum disc.

The application relates to a payment device and a payment control method. The payment device comprises a shell and a camera module, a coil module and a control mainboard arranged in the shell. The shell has an operation surface for user operation. The camera module is arranged to collect images in a direction towards the operation surface. The coil module is arranged around the camera module, so that the camera module collects images in a space surrounded by the coil module. The control mainboard is electrically connected with the two modules, and can selectively enable a code scanning payment function of the camera module or an induction payment function of the coil module according to the image collection result of the camera module. The application effectively reduces the device volume by integrating the camera module inside the annular area of the coil module to form a collision and scanning integrated layout. The application uses the existing camera module to identify the direction of a mobile phone to intelligently switch the payment mode, solves the crosstalk and interference problem, simultaneously saves a special distance sensor, significantly reduces the hardware cost and structural complexity, and realizes device miniaturization, low cost and high reliability.