49results about How to "Uniform impedance" patented technology

A touch sensor panel is disclosed having an array of co-planar single-layer touch sensors fabricated on a single side of a substrate. The sense (or drive) lines can be fabricated in a single strip as columnar or zig-zag patterns in a first orientation, and the drive (or sense) lines can be fabricated as rows of polygonal (e.g. brick-shaped or pentagonal) conductive areas in a second orientation. Each sense (or drive) line in the first orientation can be coupled to a separate metal trace in the border area of the touch sensor panel, and each polygonal area in the second orientation can also be coupled to a metal trace in the border area of the touch sensor panel. The metal traces can allow both the row and column lines to be routed to the same edge of the substrate for flex circuit attachment.

A flat cable having at least two conductor planes, in which a number of electrical conductors running in the longitudinal direction of the cable are arranged, in which the electrical conductors in the flat cable thickness direction and / or in the flat cable width direction are kept at a defined distance from each other by means of a central insulation layer of predetermined thickness acting as a spacer insulator and are electrically insulated and positioned relative to each other and to the flat cable exterior by means of an outer insulation layer.

A novel flexure or interconnect for a disk drive suspension having a locally different thickness and / or width of insulative layer and a locally different thickness, width and / or relative spacing in its trace conductors to vary capacitance and circuit impedance values accordingly to locally desirable different and optimum values for the type of circuit and the suspension features.

The car battery system of the present invention is provided with battery blocks 2 that retain a plurality of battery cells 1 in a stacked configuration and have terminal planes 2A, which are coincident with terminal surfaces 1A established by positive and negative battery cell 1 electrode terminals 13; and with battery state detection circuits 30 that connect with the electrode terminals 13 of each battery cell 1 to detect the condition of each battery cell 1. The car battery system implements a battery state detection circuit 30 on a circuit board 7, 87, and the circuit board 7, 87 is mounted on a battery block 2 in a position opposite the terminal plane 2A of the battery block 2. Further, the positive and negative electrode terminals 13 of each battery cell 1 are connected with a circuit board 7, 87 for connection to a battery state detection circuit 30.

A liquid crystal display panel with a fanlike shaped conducting line design that provides uniform impedance is disclosed. The liquid crystal display panel comprises a plurality of transistors, a plurality of control ICs and a plurality of conducting lines. Each of the conducting lines comprises a respective width and a respective length. The width and length of the conducting lines increases towards the medial portion of the fanlike shape. The arrangement of the length and width makes the resistance and capacitance of the conducting lines uniform. As a result, the display panel achieves higher optical performance and improved quality.

A surge protection device is disclosed that includes a conductor for receiving an rf signal and a dc current, a first shield having a lumen configured to accommodate at least a portion of the conductor, and a second shield having a lumen configured to accommodate the first shield so that a portion of the first shield is positioned within the lumen of the second shield. The surge protection device further includes a dc blocking device, coupled to the conductor, for attenuating the dc current, a device, coupled to the conductor, for diverting the dc current to the second shield, and a dielectric disposed between the first shield and the second shield for preventing the dc current from traveling from the second shield to the first shield.

A direct galvanic connection between a cable, having a preferred flat cross-section, and an electronic Printed Circuit Board (“Target PCB”) (228) by means of an intermediate PCB (“Interconnection PCB”) (200) allowing an impedance matched and length balanced electrical connection is described, thus offering ideal conditions for high speed and high frequency data connections.At the same time, the invention allows to keep the flexibility of a modular production and assembly workflow, typical of the use of well known connectors.

A differential signal cable for transmitting high-speed digital differential signals of several Gbit / s or more is provided to minimize characteristic impedance mismatch and to repress increase in the skew, or increase in disturbance due to differential-mode to common-mode conversion. A differential signal cable comprises two insulated wires arranged parallelly in a contact, each of said two insulated wires comprising a conductor and an insulator jacketing the conductor; a fusion layer provided on the surface of each of said two insulated wires; a drain wire placed longitudinally in a recess created in the interstice between said two insulated wires; and a shield tape lapping around said two insulated wires and said drain wire together, wherein a surface of said insulator of each of said two insulated wires is partially deformed so as to have a flat portion and said two insulated wires are fused each other at said flat portions.

A differential signal cable for transmitting high-speed digital differential signals of several Gbit / s or more is provided to minimize characteristic impedance mismatch and to repress increase in the skew, or increase in disturbance due to differential-mode to common-mode conversion. A differential signal cable comprises two insulated wires arranged parallelly in a contact, each of said two insulated wires comprising a conductor and an insulator jacketing the conductor; a fusion layer provided on the surface of each of said two insulated wires; a drain wire placed longitudinally in a recess created in the interstice between said two insulated wires; and a shield tape lapping around said two insulated wires and said drain wire together, wherein a surface of said insulator of each of said two insulated wires is partially deformed so as to have a flat portion and said two insulated wires are fused each other at said flat portions.

The invention provides a signal wiring structure in a GOA (gate driver on array) circuit of a liquid crystal display. The structure comprises a plurality of first metal layers, an insulating layer and a plurality of second metal layers, wherein each first metal layer is provided with a control signal wire; the insulating layer is formed under the first metal layers; the plurality of second metal layers are formed under the insulating layer, and the control signal wire on each first metal layer is electrically connected with the corresponding second metal layer through a plurality of through holes; and the number of the through holes formed on the control signal wire on each first metal layer is the same. According to the signal wiring structure, the control signal wire on each first metal layer is electrically connected with the second metal layer through a plurality of through holes, and the number of the through holes formed on the control signal wire on each first metal layer is the same, so that the impedance values on all control signal wires are uniform, and input and output signals of each stage of the GOA circuit are stable, and the image display quality is improved.

A touch sensor panel is disclosed having an array of co-planar single-layer touch sensors fabricated on a single side of a substrate. The sense (or drive) lines can be fabricated in a single strip as columnar or zig-zag patterns in a first orientation, and the drive (or sense) lines can be fabricated as rows of polygonal (e.g. brick-shaped or pentagonal) conductive areas in a second orientation. Each sense (or drive) line in the first orientation can be coupled to a separate metal trace in the border area of the touch sensor panel, and each polygonal area in the second orientation can also be coupled to a metal trace in the border area of the touch sensor panel. The metal traces can allow both the row and column lines to be routed to the same edge of the substrate for flex circuit attachment.

A chipless RFID tag system having a transmitter sending an input signal and a tag substrate. An ID generation circuit on the tag relies on microstrip transmission line patterns which are pre-designed to generate a unique code. The ID generating circuit may be designed based upon the transmission line properties, including signal delay, and / or reflection, and / or phase change. The tag may be formed on a flexible substrate having at least one microstrip and the microstrip having a first portion with a first impedance and a second portion with a second impedance different from the first impedance. The tag may further include a microstrip antenna for communication with the transmitter and a receiver system. The tag may also include sensors for detection of desired substances of interest. The system may further include a receiver detecting at least two reflections from an interface of first and second impedances and identifying relative time domain positions of the reflections to one another.

A high-speed short-loop bus topology that routes the bus into a first expansion connector and out of a first expansion card inserted within the connector is disclosed. The bus is not routed out of the first expansion connector. Instead, the bus is routed from the first expansion card into a second expansion card by a jumper mechanism. The bus is routed through the second expansion card and out of a second expansion connector housing the second expansion card, where the bus can be terminated or routed into another expansion connector having another expansion card. By routing the bus in this manner, it is shorter than prior art buses found in loop-through bus systems and capable of substantially maintaining a uniform transmission line impedance. Moreover, the operating bandwidth of the short-loop bus is increased since the bus is short and does not have stubs or signal reflections.

The ultrasonic probe has an ultrasonic transducer for sending and receiving ultrasonic waves, and a cap covering the ultrasonic transducer. The ultrasonic transducer scans a living organism with the ultrasonic waves passing through the cap. A meshed area having plural holes is provided in a portion of the cap for transmitting the ultrasonic waves. By reducing a density interval (pitch of the holes) below a wavelength of the ultrasonic wave, an acoustic impedance of the meshed area is reduced. Water flows into the cap from a sheath, and then flows outside the cap through the holes. A concave can be alternative to the hole. In addition, the pitch of the holes or concaves may be uneven in the meshed area, so as to give an acoustic lens effect to the cap.

This invention is to provide a general equation for the round-flat twisted-pair cable arrangement to achieve maximum or any degree of crosstalk-noise cancellation in a short distance with the uniform twist of the individual twisted-pair and the uniform offset of the local twist shift angle for neighbor twisted pairs.

An electrode pattern for touch panels is continuous with a border. Each side of the border has two ends formed respectively a straight line and a middle portion formed a curve directing inwards towards a touch area. The touch area surrounded by the electrode pattern has a uniform impedance. When an external voltage is applied to the electrode pattern, a continuous potential difference altering linearly is formed such that the touch area can output an electric signal to be precisely detected by a computer.

The invention relates to a cable processing technology, in particular to a production method for a light low-attenuation wrinkled coaxial cable. The technical scheme is that the production method for the light low-attenuation wrinkled coaxial cable sequentially comprises the following steps: (1) preparing an inner conductor; (2) wrapping an insulator, first enabling the inner conductor to enter an inner thin layer extruder to enable an inner thin layer to be formed outside the inner conductor; enabling the inner conductor where the inner thin layer is wrapped to enter a foaming insulating layer extruder to form an insulating layer; and forming an outer thin layer outside the foaming insulating layer through an outer thin layer extruder; (3) preparing an outer conductor; and (4) wrapping a sheath, and using a plastic extruder to enable a sheath material to be wrapped outside the outer conductor to form the sheath. The wrinkled coaxial cable prepared in the method has the advantages of being low in attenuation, uniform in impedance and large in return loss.

The invention relates to a polyethylene insulated flexible radio-frequency cable, belonging to the technical field of cables. The polyethylene insulated flexible radio-frequency cable is composed of an inner conductor, an insulating layer, an outer conductor and a sheath in sequence from inside to outside, wherein the inner conductor is made of 27 silver-plated copper stranded bundles each of which the diameter is 0.127mm; the insulating layer is a skin-foam-skin insulating layer which is foamed by adopting a physical foaming technology, wherein the outer diameter of the insulating layer is 2.4mm; the outer conductor is a silver plated flat wire or silver plated single-wire braided shielding layer; a polyethylene insulating layer is extruded on the inner conductor made of the silver-plated copper stranded bundles; the outer conductor, namely the silver plated flat wire or silver plated single-wire braided shielding layer, is braided on the polyethylene insulating layer; and the polyethylene sheath is extruded on the outer conductor, wherein the diameter of the sheath is 4.1mm. The polyethylene insulated flexible radio-frequency cable disclosed by the invention is reasonable in structure, ensures the electrical performance of the cable, improves the strength of the insulating layer and has the function of preventing water and moisture from intruding into the intermediate foaming layer. The fluctuation of a capacitor is controlled in a tiny tolerance range, the voltage standing wave rate is low, so that the impedance of an exchange network is more matched and the high-quality transmission of high-frequency signals is achieved.

An arrangement for current limiting is specified, using components (4, 5, 6) composed of a superconducting material which are arranged in a cryostat (KR) which comprises two metallic tubes (1, 2) which are arranged concentrically with respect to one another and between which vacuum insulation (3) is fitted, and which cryostat surrounds a free space (FR) for a coolant to pass through. The components (4, 5, 6) each comprise three phase conductors (7, 8, 9) composed of a superconducting material based on rare earths (ReBCO), which are arranged insulated from one another and concentrically with respect to one another. “n” components (4, 5, 6) are arranged in the cryostat (KR) and their phase conductors are cyclically electrically conductively connected to one another such that the inner phase conductor (7) of each component is connected to the centre phase conductor (8) of a second component, and this centre phase conductor (8) is connected to the outer phase conductor (9) of the third component, where n=3 or an integer multiple of 3.

The invention relates to the technical field of communication cables, in particular to a composite insulated copper-plastic composite tube shielded coaxial cable, which includes an inner conductor, a double-layer composite insulating layer, a copper-plastic composite tube and an outer sheath. The double-layer composite insulation layer is coated on the inner conductor, and the double-layer composite insulation layer is composed of an FPE insulation layer and a nylon coating insulation layer, and the nylon coating insulation layer is outside the FPE insulation layer; the FPE insulation layer Made of expanded polyethylene material. The copper-plastic composite pipe is covered on the outside of the double-layer composite insulating layer, and the copper-plastic composite pipe is composed of a longitudinally wrapped copper-plastic composite tape; the outer sheath is covered on the outside of the copper-plastic composite pipe, and the outer sheath is made of poly Made of ethylene material, a composite insulated copper-plastic composite tube shielded coaxial cable of the present invention, because the cable uses foamed polyethylene and nylon-plated outer film for composite insulation, the cable foams evenly and the surface is smooth and round, so that the cable The impedance is uniform and the working frequency is high, up to 6GHz.

The invention provides an electrostatic flocked product with stable impedance values. The electrostatic flocked product with the stable impedance values comprises a flocked layer, a bonding layer, a conductive layer and an insulating layer, wherein the flocked layer, the bonding layer, the conductive layer and the insulating layer are sequentially laminated and are tightly connected with one another. The conductive layer is arranged on the insulating layer, so that not only are the overall strength and the overall flexibility of the electrostatic flocked product ensured, but also the impedance on the surface of the insulating layer can be reduced to be close to a conductive state; conductive fiber and the conductive layer are connected firmly through the bonding layer; during impedance detection, current penetrates through the bonding layer and is transmitted along the conductive layer, impedances of all detection points are uniform and deviation values are as low as 103; the impedance values are reduced, and the content of a conductive agent in the bonding layer can also be reduced, so that the content of a bonding agent in the bonding layer can be increased to improve the bonding performance of the bonding layer, the flocked layer can be firmly connected with the other layers, and the overall strength of the electrostatic flocked product is improved.

The invention discloses a signal transmission line structure and a display panel. The signal transmission line structure comprises: a first signal transmission line; a second signal transmission line;and a third signal transmission line. The third signal transmission line is connected with the first signal transmission channel in parallel, so that a second signal transmission channel with lower impedance can be formed; the display panel is provided with the signal transmission line structure, and impedance borne by transmission of all input signals in the display panel can be reduced to be balanced.