Patent application number | Description | Published |
20080258984 | Antenna, and wireless module, wireless unit and wireless apparatus having the antenna - In an antenna that has high sensitivity to frequencies of narrow bands and over a wide band and that can be small-sized, and in a wireless module, wireless unit and wireless apparatus using this antenna, the antenna is comprised of a transmission line, and variable capacitance means connected to this transmission line, and the variable capacitance means controls the resonant frequency. | 10-23-2008 |
20090051610 | TUNABLE ANTENNA MODULE WITH FREQUENCY CORRECTION CIRCUIT AND MANUFACTURING METHOD THEREOF - A tunable antenna module with frequency correction circuit having an antenna element, a variable capacity means connected to the antenna element, and a frequency control source that generates a controlling voltage for varying the capacity of the variable capacity means to vary a tuning frequency according to the frequency of radio wave received by the antenna element. The module further has a voltage divider circuit comprised of resisters for dividing the controlling voltage, and connected between the frequency control source and the variable capacity means. The tuning frequency is corrected by the voltage divider circuit. | 02-26-2009 |
20110051381 | FLEXIBLE HARNESS AND ELECTRICAL CONNECTOR CABLE USING SAME - There is provided a flexible harness adapted to be detachably connected to electrode pads of an electric/electronic component. The flexible harness according to the present invention comprises: a flexible insulator film; a conductor pattern formed on the flexible insulator film; a terminal plane which is an end region of the conductor pattern; and ball-like contact bumps formed on the terminal plane. Each contact bump includes a core made of an elastically deformable resin and an electrical conductor layer surrounding the core. | 03-03-2011 |
20110083877 | DIFFERENTIAL SIGNALING CABLE, TRANSMISSION CABLE ASSEMBLY USING SAME, AND PRODUCTION METHOD FOR DIFFERENTIAL SIGNALING CABLE - A differential signaling cable according to the present invention comprises: a pair of signal conductors provided in parallel; an insulator which covers the periphery of the pair of signal conductors in a batch; and a shield conductor provided on the outer periphery of the insulator, in which an interval between the pair of signal conductors is specified so that even-mode impedance becomes 1.5 to 1.9 times odd-mode impedance. | 04-14-2011 |
20110100682 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE - A differential signal transmission cable has two conductor wires disposed to be parallel with each other, a flat insulating member collectively covering the two conductor wires, the insulating member having flat portions facing to each other in a direction perpendicular to an alignment direction of the two conductor wires to sandwich the two conductor wires, a shield conductor including a metal foil tape and being wound around an outer periphery of the insulating member, a drain wire provided to contact with the shield conductor at a position corresponding to the flat portion, and a jacket jacketing the drain wire and the shield conductor. | 05-05-2011 |
20110232941 | DIFFERENTIAL SIGNAL CABLE, AND CABLE ASSEMBLY AND MULTI-PAIR DIFFERENTIAL SIGNAL CABLE USING THE SAME - 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. | 09-29-2011 |
20120061140 | Connection structure and a connection method for connecting a differential signal transmission cable to a circuit board - A connection structure for connecting a differential signal transmission cable to a circuit board. A differential signal transmission cable includes an outer conductor provided around a pair of signal line conductors via an insulator. Parts of the signal line conductors are exposed from a tip of the differential signal transmission cable. A circuit board is provided with a pair of signal pads and a ground pad. A shield-connecting terminal includes a main body which is crimp-connected to the outer conductor and a solder-connecting pin which is solder-connected to the ground pad. The exposed parts of the signal line conductors are solder-connected to the signal pads, respectively, and the outer conductor is solder-connected to the ground pad via the solder-connecting pin of the shield-connecting terminal. | 03-15-2012 |
20120064754 | Direct attach cable - A direct attach cable includes a cable connected to a paddle card, a housing formed to store the paddle card and the end portion of the cable, a latch engaged with an engaging portion of a plate spring provided on the cage when the housing is inserted in the cage, a de-latching lever in a lever shape for releasing the engagement between the latch and the plate spring, the de-latching lever pushing up the plate spring to disengage the engaging portion of the plate spring from the latch, a link formed in a frame shape so as to be fitted to the housing on the rear end side in the insertion direction, the link pushing up the plate spring via the de-latching lever by moving toward the rear end side, and a pull-tab for moving the link on the rear end side of the housing in the insertion direction. | 03-15-2012 |
20120152589 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE - A differential signal transmission cable includes a pair of insulated electric wires disposed to be parallel with each other, and a shield layer formed of a metal foil composite tape spirally wound around the pair of insulated electric wires collectively. The shield layer is formed by folding the metal foil composite tape along a longitudinal direction of the metal foil composite tape such that a surface on which a metal foil is provided is located outside to provide a folded portion, and winding the metal foil composite tape around the pair of insulated electric wires such that at least a part of the folded portion is located at a spiral overlapped region of the metal foil composite tape. | 06-21-2012 |
20120186850 | Differential signal transmission cable - A differential signal transmission cable has a pair of conductors arranged to be distant from each other and parallel to each other, an insulator covering the pair of conductors, and a shield conductor wound around the insulator. The insulator has an outer periphery shape of a transversal cross section in that a plurality of curved lines with different curvature radiuses are combined. The shield conductor has an inner periphery shape of a transversal cross section in that the plurality of curved lines are combined in accordance with the outer periphery shape of the insulator. | 07-26-2012 |
20120193122 | Differential signal transmission cable and method for fabricating the same - A differential signal transmission cable has a pair of insulated wires, a first tape and a second tape. Each of the first and second tapes is made of a base material having an electrical insulating property and an electrical conductive film formed on at least one surface of the base material. The first tape is spirally wound around the insulated wires such that the electrical conductive film is provided outside. The second tape is spirally wound around the first tape such that the electrical conductive film of the second tape contacts with the electrical conductive film of the first tape. Among angles made by an upper edge of the insulated wires and an edge of the first tape in a side view in which a longitudinal direction of the pair of insulated wires is a horizontal direction, a first angle made on one end side of the insulated wires is an acute angle in the first tape. Among angles made by the upper edge of the pair of insulated wires and an edge of the second tape in the side view, a second angle made on the one end side of the insulated wires is an obtuse angle in the second tape. | 08-02-2012 |
20120267143 | SHIELDED FLAT RIBBON CABLE AND METHOD FOR FABRICATING A SHIELDED FLAT RIBBON CABLE - A shielded flat ribbon cable includes a plurality of insulated conductors being spaced parallel to each other, the insulated conductors each including an inner conductor and an insulation coating the inner conductor; an outer conductor bundling the insulated conductors together, the outer conductor including a first shell and a second shell in association with each other to sandwich the insulated conductors therebetween, each of the first shell and the second shell including a plurality of grooves covering outer surfaces of the insulated conductors, and a plurality of edge portions integral with both sides of the grooves, and gap formation-suppressing means for suppressing formation of gaps between the edge portions of the first shell and the edge portions of the second shell, respectively. | 10-25-2012 |
20130069670 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE PROPERTY EVALUATING MECHANISM AND EVALUATING METHOD THEREFOR - A differential signal transmission cable property evaluating mechanism includes a substrate having a signal line pad to be connected with a signal line conductor of a differential signal transmission cable and a ground pad to be connected with a shield conductor of the differential signal transmission cable, a pressing member for pressing the signal line conductor to the signal line pad, a shield conductor holding sheet including an elastic insulating sheet and a metal foil provided over one side of the elastic insulating sheet, the shield conductor holding sheet provided for indirectly connecting the shield conductor and the ground pad to each other by contacting the metal foil with the shield conductor and the ground pad, and a clip for fixing the shield conductor holding sheet. | 03-21-2013 |
20130072041 | NON-DRAIN DIFFERENTIAL SIGNAL TRANSMISSION CABLE AND GROUND CONNECTION STRUCTURE THEREOF - A non-drain differential signal transmission cable includes a pair of signal conductors aligned in parallel, an insulation around the pair of signal conductors, a shield conductor around the insulation, and a ground connecting pin to electrically connect the shield conductor to a ground, the ground connecting pin including a wire. An end portion of the pair of signal conductors is exposed with the insulation and the shield conductor removed. The ground connecting pin includes a winding portion wound around the shield conductor to be electrically connected to the shield conductor, and a pin portion extending from the winding portion and having an elongate shape. | 03-21-2013 |
20130175081 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE - A differential signal transmission cable includes a pair of differential signal lines arranged in parallel to each other, an insulation for bundle-covering the pair of differential signal lines, and a shield conductor wound around an outer periphery of the insulation The insulation is configured such that an outer circumference thereof in a cross section perpendicular to a longitudinal direction thereof has an oval shape formed with a continuous convex arc-curve The oval shape has a width in a first direction along the arrangement direction of the pair of differential signal lines being larger than a width in a second direction orthogonal to the first direction | 07-11-2013 |
20130319724 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE - A differential signal transmission cable includes a pair of differential signal lines arranged in parallel to each other, an insulation for bundle-covering the pair of differential signal lines, and a shield conductor wound around an outer periphery of the insulation. The insulation is configured such that an outer circumference thereof in a cross section perpendicular to a longitudinal direction thereof has an oval shape formed with a continuous convex arc-curve. The outer circumference of the insulation includes a first curved portion with a pair of symmetrical elliptical arcs located at both ends in a first direction along the arrangement direction of the pair of differential signal lines and a second curved portion with a pair of symmetrical elliptical arcs located at both ends in a second direction orthogonal to the first direction. | 12-05-2013 |
20130333913 | MULTIPAIR DIFFERENTIAL SIGNAL TRANSMISSION CABLE - A multipair differential signal transmission cable includes a plurality of differential signal transmission cables being bundled and each including two signal conductors as a differential pair covered with an insulation and a first shielding tape conductor provided therearound. The first shielding tape conductor is longitudinally lapped so as to have an overlapping portion in a cable longitudinal direction. The plurality of differential signal transmission cables include at least one or more pairs of two adjacent differential signal transmission cables. The two adjacent differential signal transmission cables are arranged such that the overlapping portion of one of the two adjacent differential signal transmission cables does not face the other of the two adjacent differential signal transmission cables. | 12-19-2013 |
20140034352 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE, MULTIWIRE DIFFERENTIAL SIGNAL TRANSMISSION CABLE, AND DIFFERENTIAL SIGNAL TRANSMISSION CABLE PRODUCING METHOD AND APPARATUS - A differential signal transmission cable includes an insulated wire including a pair of differential signal transmission conductors coated with an insulation, a shield tape conductor made of a band-like member including an electrically conductive metal layer, and wrapped along an outer surface of the insulated wire so that its ends in a width direction are overlapped together, a first resin tape spirally wound along an outer surface of the shield tape conductor and around an outer side of the shield tape conductor, and a second resin tape spirally wound along an outer surface of the first resin tape and around an outer side of the first resin tape. The shield tape conductor, the first resin tape and the second resin tape are wound in a same circumferential direction around a center axis of the insulated wire. | 02-06-2014 |
20140048302 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE AND MULTI-CORE CABLE - A differential signal transmission cable includes a pair of center conductors for transmitting a differential signal, an insulator covering peripheries of the center conductors, a shield tape longitudinally wrapped around the insulator, an insulating tape including an adhesive surface and spirally wrapped around the shield tape while the adhesive surface faces inside, and a non-adhesive tape provided between the shield tape and the insulating tape along a longitudinal direction, and non-adhesively covering a part of an outer periphery of the shield tape in a circumferential direction. | 02-20-2014 |
20140102756 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE AND MULTI-CORE DIFFERENTIAL SIGNAL TRANSMISSION CABLE - A differential signal transmission cable includes first and second signal lines arranged parallel to each other, a conductive layer made of a conductor in which a current is induced when signals propagate through the first and second signal lines, and a dielectric disposed between the first and second signal lines and the conductive layer. The conductive layer has a signal attenuating structure including a non-continuous section in which the conductor is non-continuous, the non-continuous section being located such that, among differential signal components and common-mode signal components included in the signals propagating through the first and second signal lines, the common-mode signal components are attenuated by an attenuation factor greater than an attenuation factor of the differential signal components. | 04-17-2014 |
20140138154 | CABLE ASSEMBLY AND METHOD OF MANUFACTURING THE SAME - Outer-conductor-exposed portions are positioned in respective second body portions of a cable holder, and solder is supplied into solder pools provided in the respective second body portions, whereby outer conductors and ground contacts are connected to each other. Hence, even if the solder is in a molten state, a heated soldering bit does not touch the outer conductors. Therefore, the occurrence of any deformation or melting of insulators is suppressed. Furthermore, since there is no need to caulk any shield connection terminals in such a manner as to conform to the shapes of the outer conductors as in the known art, there is no chance of the insulators undergoing elastic deformation. Hence, the insulators are protected from any factors for thermal deformation and elastic deformation, and electric characteristics of differential signal transmission cables for individual finished products are thus stabilized. Consequently, the reliability of the cable assembly is improved. | 05-22-2014 |
20140305676 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE AND MULTIPAIR DIFFERENTIAL SIGNAL TRANSMISSION CABLE - A differential signal transmission cable includes two core wires arranged in parallel, each of the two core wires having an insulation layer on an outer periphery of a conductor; and an outer conductor provided so as to cover the two core wires all together. The insulation layer includes sequentially an inner skin layer of a non-foamed resin, a foam layer of a foamed resin, and an outer skin layer of a non-foamed resin on the outer periphery of the conductor. The outer skin layer has a higher relative permittivity than the inner skin layer. The multipair differential signal transmission includes a plurality of differential signal transmission cables and a protective jacket provided around the plurality of differential signal transmission cables. | 10-16-2014 |
20140338951 | TERMINATION STRUCTURE, TERMINATION METHOD AND TERMINATION TERMINAL FOR HIGH-SPEED TRANSMISSION LINE - A termination structure for high-speed transmission line includes a high-speed transmission line including a signal line configured to transmit a signal, an insulation which covers the signal line and an external conductor disposed at an outer periphery of the insulation, and a termination terminal disposed at a terminal of the high-speed transmission line. The termination terminal includes a holder disposed sandwiching the external conductor exposed at the terminal of the high-speed transmission line from both sides. The holder includes a holding part to hold the high-speed transmission line and is electrically connected to the external conductor. The holding part is formed so as to have a shape along an outer shape of the external conductor. | 11-20-2014 |
20150021063 | DIFFERENTIAL TRANSMISSION CABLE AND MULTIPAIR DIFFERENTIAL TRANSMISSION CABLE - A differential transmission cable includes a pair of inner conductors; an insulator that separately or integrally covers the pair of inner conductors; an outer conductor disposed around the insulator; a wrapping tape wound around the outer conductor; and a drain wire disposed outside of the wrapping tape, the drain wire being electrically connected to the outer conductor for grounding the outer conductor. | 01-22-2015 |
20150053453 | DIFFERENTIAL SIGNAL TRANSMISSION CABLE - In a differential signal transmission cable, a surface of a skin layer is partially provided with shield conductors disposed at respective equidistant portions spaced apart in a direction orthogonal to a direction in which two signal conductors are arranged, the equidistant portions each being distant by the same distance from axial centers of the signal conductors. On the surface of the skin layer, the shield conductors are not provided in areas located in the direction in which the signal conductors are arranged, and spaces are created in these areas. | 02-26-2015 |