8results about How to "Improve crosstalk" patented technology

The invention provides an ultra-high-speed electric connector which comprises an insulating body, the insulating body is provided with a lengthwise slot, a plurality of terminal slots are formed in lengthwise side walls on the two sides of the slot respectively, and a fool-proof part is arranged in the slot and used for dividing the insulating body into a power supply and low-speed signal area and a high-speed signal area which are located on the two sides of the fool-proof part; the plurality of terminals comprise differential signal terminals distributed in the high-speed signal area and other terminals distributed in the high-speed signal area and the power supply and low-speed signal area, every two differential signal terminals are adjacent, and two sides of every two adjacent differential signal terminals are respectively provided with a grounding terminal; every two adjacent differential signal terminals and two grounding terminals located on the two sides of the two differential signal terminals form a terminal module, and the two differential signal terminals and the two grounding terminals of each terminal module and an insulating block inserted into the insulating body are formed in an embedded mode. The ultra-high-speed electric connector can enable signal transmission to be better and more stable.

The invention provides a time division multiplexing readout circuit for a superconducting detector array and a readout method thereof, the circuit comprises detection pixel units, at least two row gating control lines and a column readout channel, and each row gating control line is at least connected with two detection pixel units; each detection pixel unit comprises a detector bias branch, an LC filtering isolation network, a Josephson junction switch module and a signal transmission branch which are connected in sequence; each row gating control line is connected to the control end of the Josephson junction; a common input signal line connected with the output end of each signal transmission branch is connected in series with at least two input inductors Lin, and a corresponding reading SQUID is arranged beside each input inductor Lin for magnetic coupling, so that a primary direct reading structure is formed; the read-out SQUIDs are also connected in series with one another to form a read-out SQUID column series array, and a column read-out channel is jointly formed; a time division multiplexing readout method is also provided.

The application relates to a DSFP radio frequency connector, which comprises a terminal unit and a shielding piece inserted into the terminal unit. The application reduces the crosstalk between the signals transmitted by the DSFP radio frequency connector through the following modes: the ground terminal of the terminal unit adopts a double-contact structure to contact the circuit board, the shielding piece is arranged between the terminal units and contacts the inner side of the accommodating groove of the circuit board, and the DSFP radio frequency connector is fixed to the printed circuit board through three welding legs of the shielding piece. The DSFP radio frequency connector has good high-speed transmission efficiency, can replace the common radio frequency connector in small base stations, and reduces the cost. In addition, the shielding piece of the DSFP radio frequency connector contacts the inner side of the accommodating groove of the circuit board through a double-contact structure, and the resonance problem caused by single-point contact can be avoided.

A transition device is used to transmit high-speed signals, and the transition device includes a main board, a first signal pair and a second signal pair. The main board includes a surface layer and a specific layer, and the specific layer is located in a different plane from the surface layer. The first signal pair includes a pair of first wire segments and a plurality of first end points, the plurality of first end points respectively correspond to both ends of each of the pair of first wire segments, and the pair of first wire segments and the plurality of first end points are located in the surface layer. The second signal pair includes a pair of second wire segments and a plurality of second end points, the plurality of second end points respectively correspond to both ends of each of the pair of second wire segments, the plurality of second end points are located in the surface layer, and the pair of second wire segments are located in the specific layer.

The invention discloses a data voltage control circuit and a display panel, and relates to the technical field of display, the circuit comprises a polarity duration determination module, a polarity control signal is accessed to a first end, a data voltage is accessed to a second end, and under the control of the polarity control signal, positive polarity duration data and negative polarity duration data of the data voltage are determined; the first end of the polarity duration comparison module is connected with the third end of the polarity duration determination module, and positive polarity adjustment data and negative polarity adjustment data are respectively determined based on the positive polarity duration data and the negative polarity duration data; the first end of the data voltage adjusting module is connected with the second end of the polarity time length comparison module, the second end of the data voltage adjusting module is connected with data voltage, and the data voltage adjusting module is used for adjusting the positive polarity hopping time length based on the positive polarity adjusting data and adjusting the negative polarity hopping time length based on the negative polarity adjusting data so that the positive polarity hopping time length can be equal to the negative polarity hopping time length. According to the invention, the screen crosstalk is improved by optimizing the design of the data voltage control circuit.

The utility model provides a high-speed connector, which comprises an insulating main body and a conductive terminal assembly, the insulating main body extends along a first direction, a plurality of mounting grooves are arranged at intervals along the first direction, the mounting grooves are arranged along a second direction, the insulating main body is provided with plugging grooves extending along the first direction, the plugging grooves are communicated with the mounting grooves, and the conductive terminal assembly is arranged on the insulating main body. The plug-in groove is used for plugging external expansion equipment, the conductive terminal assembly comprises a plurality of signal terminals and ground terminals, the signal terminals and the ground terminals enter the plug-in groove through the mounting groove to contact the external expansion equipment, the signal terminals transmit differential signals, and the ground terminals are located on the two sides of the signal terminals to reduce interference. The middle part of the ground terminal is widened along the second direction and covers the signal terminal along the first direction, so that the anti-interference effect is enhanced. By widening the ground terminal and covering the adjacent signal terminals, the effective sectional area of the ground terminal is enlarged, shielding is enhanced, signal interference is suppressed, and the crosstalk problem is solved.

The invention provides an image sensor and a manufacturing method thereof, and the manufacturing method comprises the steps: firstly forming latticed deep grooves in a first epitaxial layer, then forming an N-type ion implantation region in the first epitaxial layer of each grid between the deep grooves, and finally forming a cross-shaped P-type isolation region in the N-type ion implantation region of each grid, the N-type ion implantation region in each grid is divided into four pixel blocks. According to the invention, deep trench etching and filling isolation are carried out on the peripheries of the four pixel blocks, and the grid-shaped second epitaxial layer and the cross-shaped P-type isolation region are utilized to jointly form the isolation structure, so that the difficulty of grid-shaped deep trench etching on a smaller area is reduced; the problems that lattice damage of a PD photosensitive area is easily caused by deep groove etching of a small-size photodiode and the dark current of the photodiode is increased are avoided, the dark current during single PD imaging can be improved, and crosstalk between pixels can be effectively improved in the pixel four-in-one imaging process.

This invention discloses an optical path system for an optical switch, comprising: a first single-axis crystal, a second single-axis crystal, a polarization combining prism, a total internal reflection prism, a first fiber collimator, a second fiber collimator, a third fiber collimator, a motor, and a motor controller; both the first and second single-axis crystals are cylindrical and placed with their optical axes aligned; the polarization combining prism and the total internal reflection prism are applied to radially symmetrical positions on the exit circular surface of the second single-axis crystal, and the two prisms are placed perpendicularly, with the polarization combining prism on top and the total internal reflection prism on the bottom; the first fiber collimator is located at the input end on the incident circular surface of the first single-axis crystal, the second fiber collimator is located at the output end on the exit circular surface of the second single-axis crystal, and the third fiber collimator is located at the output end of the polarization combining prism; the motor controller is used to control the rotation of the motor, thereby controlling the rotation of the second single-axis crystal.