397results about How to "Improve signal transmission performance" patented technology

An optical transceiver apparatus includes a gain medium, a photoelectric converter, at least one AWG, and a partial reflection mirror. The at least one AWG includes two common ports and multiple branch ports. One of the two common ports functions as a signal sending port, and the other functions as a signal receiving port, where bandwidth of the signal sending port is less than that of the signal receiving port. The gain medium and the photoelectric converter are connected to one of the branch ports of the AWG. The AWG and the partial reflection mirror are configured to cooperatively perform wavelength self-injection locking on an optical signal provided by the gain medium, and output the optical signal through the signal sending port. The AWG is further configured to demultiplex an optical signal received by the signal receiving port to a branch port. A WDM-PON system is also provided.

The invention discloses a variable tension adjustment and control device capable of being used for precision winding of an optical fiber. The device comprises a releasing mechanism, a dance wheel adjusting mechanism, a tension detection mechanism and a panel, wherein a printed winding motor is used as a releasing motor of the variable tension adjustment and control device; a micro ball screw transmission pair is driven through a step motor to accurately change a rider position in the length direction of a swing rod; the position of the swing rod is detected by using an angle sensor, so that the swing rod is kept at a horizontal position in a moment balance state; the optical fiber tension after layer replacement winding achieves a new stable value requirement by changing the rider position, and precision detection and control of the horizontal balance position of the swing rod; thus variable tension adjustment and control during layer replacement winding of the optical fiber winding are realized, the inner and outer layer stress and strain differences caused by increase in number of layers of the optical fiber winding can be eliminated, and finally stress winding of inner and outer layers of the optical fiber winding and the like is realized so as to obviously improve the signal transmission performance and stability of the optical fiber winding.

The invention relates to a touch display device. The touch display device comprises a first substrate and a second substrate which are oppositely arranged, first sensing electrodes and second sensing electrodes, wherein first pins transmit touch scanning signals, second pins transmit touch sensing signals, and the first substrate defines a touch display region and a non-touch display region; corresponding to the periphery of the non-touch display region, the first substrate is provided with the first pins, wires and the second pins; the first pins transmit the touch scanning signals and the second pins transmit the touch sensing signals; the wires are electrically connected with the corresponding sensing electrodes and the corresponding first pins, the second sensing electrodes are electrically connected with the corresponding second pins, the wires and the second pins are mutually insulated, a conductive layer is arranged at a part, close to the second pins, of the wires, and is located in a layer between the part, close to the second pins, of the wires and the second pins, and the conductive layer is grounded or is in direct electric signal connection with a constant potential. The touch display device is relatively high in touch precision.

The invention relates to an optical cable and a manufacturing method, and the high-voltage optical cable is suitable for long-distance, larger-capacity and low-loss long-distance power transmission, in particular to a large-section optical fiber composite overhead phase line and a manufacturing method thereof. The large-section optical fiber composite overhead phase line comprises an optical fiber unit, aluminium-covered steel wires and aluminium wires, the large-section optical fiber composite overhead phase line is at least five layers, the center line of the first layer is one aluminium-covered steel wire, the optical fiber unit is twisted with a plurality of aluminium-covered steel wires to form the second layer, and then the outer layer is twisted with a plurality of aluminium wires to form an aluminium twisting layer. The manufacturing method of the large-section optical fiber composite overhead phase line includes two processes of optical fiber manufacture and cabling manufacture. The large-section optical fiber composite overhead phase line is strong in tension resistant performance, is suitable for a mountainous area and the like which have high requirements for tower distances and sag, and has doubles functions of phase cable power transmission and optical fiber signal transmission. In addition, the large-section optical fiber composite overhead phase line is suitable for direct current based deicing technique, in an ice rain prevalent area, once a conductive wire is covered by ice rain, and the direct current based deicing technique can be used to enable the large-section optical fiber composite overhead phase line to be powered with direct current.

A HDMI connector assembly includes an insulative body including a body member including a central channel therethrough and parallel grooves on top and bottom of the channel, and a plate including two rows of parallel terminal cavities aligned with the grooves; an insulative seat provided in the channel and including a rear member including parallel furrows on its top and bottom, and a front member including parallel depressions; two rows of conductors provided in the depressions, the furrows, the grooves, and the terminal cavities, each conductor including a front electrical terminal and a rear solder member wherein the solder members of one row and the solder members of the other row are bent in opposite directions; and a housing for receiving the insulative body. The invention has advantages of increased quality and signal transmission performance, and causing no pollution.

An optical transceiver apparatus includes a gain medium, a photoelectric converter, at least one AWG, and a partial reflection mirror. The at least one AWG includes two common ports and multiple branch ports. One of the two common ports functions as a signal sending port, and the other functions as a signal receiving port, where bandwidth of the signal sending port is less than that of the signal receiving port. The gain medium and the photoelectric converter are connected to one of the branch ports of the AWG. The AWG and the partial reflection mirror are configured to cooperatively perform wavelength self-injection locking on an optical signal provided by the gain medium, and output the optical signal through the signal sending port. The AWG is further configured to demultiplex an optical signal received by the signal receiving port to a branch port. A WDM-PON system is also provided.

A method of fabricating a thin film transistor (TFT) substrate includes forming a gate line and a data line on an insulating substrate. The data line crosses the gate line and is insulated from the gate line. The formation of the gate line, the data line, or both the gate line and the data line includes forming a low-resistive conductive pattern on a base pattern using an electroless plating method.

The invention provides a wireless management system for yarn breakage detection of a spinning frame and a management method thereof, which save a lot of cables and avoid occurrence of accidents. The wireless management system for yarn breakage detection of the spinning frame comprises a yarn breakage detector, a wireless module located on the yarn breakage detector, a battery located on the yarn breakage detector and used for supplying power for the yarn breakage detector and the wireless module, and a wireless base station in wireless connection with the wireless module. The wireless base station is connected with a spinning management system. The wireless management system for yarn breakage detection of the spinning frame and the management method thereof realize wireless transmission of yarn breakage detection result, save a lot of cables and effectively avoid fire accidents caused by leakage of electricity of the cables.

The invention relates to an electricity network bridge and comprises a communication unit and a coupling unit, wherein one end of the communication unit is connected with a network, while the other end is connected with the coupling unit which is connected with an electricity wire; the communication unit is used for converting signals between the forms accepted by the network and the coupling unit, and the coupling unit is used for transmitting signals between the communication unit and the electricity wire, and a signal receiving channel and a signal sending channel of the coupling unit are independent with each other. The electricity network bridge of the invention has the following advantages: as the OFDM technique is adopted and the receiving and sending channels of the coupling unit are independent with each other, the invention has simple circuit adjustment and better effect of signal transmission.

Provided is a buffer amplifier. The buffer amplifier includes: a replica bias unit dividing an internal power voltage received from an internal power node to generate a bias voltage; an input unit including a first differential amplifier comparing a first differential input signal with the bias voltage to output a first internal signal and a second differential amplifier comparing a second differential input signal with the bias voltage to output a second internal signal; and an output unit including a third differential amplifier comparing the first internal signal with the second internal signal to output a first differential output signal and a second differential output signal.

A multi-layer substrate includes a plurality of substrate main bodies, a plurality of layers which are alternately layered with the main bodies, a signal via hole which is connected with a signal line and includes a signal column which passes through at least one substrate main body; and a sub via hole which includes a sub column which surrounds the signal column, and a pair of sub pads which extend from end parts of the sub column to be formed to the layers, the layers which are formed with the sub pads being disposed in the same layer as the layers which are formed with the signal line of the signal via hole, or being disposed outside the layers which are formed with the signal line which is connected with the signal via hole.

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a substrate, a display area, a non-display area and a fan-out area. The display area comprises a plurality of pixel units, a plurality of grid line sets, a plurality of data lines and a plurality of touch lines. Each grid line set includes two adjacent grid lineslocated between adjacent two rows of pixel units. The grid lines are located on a grid metal layer, the data lines and the touch lines are all located in a source / drain metal layer. The fan-out areaincludes a plurality of first fan-out lines and a plurality of second fan-out lines, the first fan-out lines are located on the grid metal layer and / or the source / drain metal layer, and each second fan-out line is located on the source / drain metal layer. The display device includes the above display panel. The display panel and the display device can save cost and make the impedance of all the touch lines consistent, thereby improving the display quality of the display panel.

The invention discloses a wire, and further discloses a preparing method of the wire and an application thereof. The wire comprises an insulation protecting layer and inner wires located in the insulation protecting layer. Each inner wire comprises at least one conducting element. Each conductive element comprises nonmetal fiber core wires, and a conducting layer arranged on the outside of the nonmetal fiber core wires. Due to the fact that the conducting layer is arranged on the surfaces of the nonmetal fiber core wires, the wire has the advantages of being simple in operation and easy in wide range industrial production The surface of the wire manufactured with the method is even. By further twisting and twining the multiple conducting elements, the structure is more compact, and the electrical performance and the mechanical performance can be further improved.

A rotatable electrical coupling device incorporates a first connector having a first electrical contact member adapted to conduct or transmit a high-frequency and / or high-speed data signal, and a second connector having a second electrical contact member adapted to conduct or transmit a high-frequency and / or high-speed data signal. The second connector is configured to be coupled with the first connector for substantially free or unimpeded rotation about an axis (X) relative to the first connector, the first and second electrical contact members being configured to engage one another and to maintain uninterrupted electrical contact throughout a relative rotational movement between the first and second connectors in a coupled state.