Crosstalk Suppression Patents (Class 439/941)
  • Patent number: 7892040
    Abstract: Communications connectors having a plurality of signal carrying paths include a printed circuit board and a plurality of contacts. The printed circuit board has a plurality of contact pads, a plurality of output terminals, and a plurality of conductive paths that electrically connect at least some of the plurality of contact pads to respective ones of the plurality of output terminals. The contacts each have a plug contact region. In these connectors, a first of the plurality of signal carrying paths extends from the plug contact region of a first of the plurality of contacts to a first of the plurality of output terminals through a first of the contact pads and a first of the conductive paths.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: February 22, 2011
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Thomas Ellis, Michael Walter Canning, Troy Long, Ron Guelden
  • Patent number: 7883345
    Abstract: A socket assembly comprises a socket and a pick up cap attached on the socket. The socket has an insulative housing with sidewalls, and the sidewalls have a plurality of protrusions extending upwardly and formed with end surfaces. The pick up cap comprises a plurality of cutouts with inner side surfaces. The inner side surface of the cutout abuts against corresponding end surface of insulative housing to position the pick up cap on the insulative housing. An interference force created between the cutout and the protrusion extends along an extending direction of corresponding sidewall.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: February 8, 2011
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Cheng-Chi Yeh, Chia-Wei Fan
  • Patent number: 7883378
    Abstract: In a module, press-fit connection using a pin terminal including a connection part separated into two parts and a flat plane parallel to the lengthwise direction in the separation part and perpendicular to the separation direction of the pin terminal is performed. A through-hole of a board is structured so that an inner diameter of the through-hole at a middle part in the thickness direction of the board is smaller than that at obverse and reverse surfaces of the board and the length of the middle part of the through-hole connected to the pin terminal is shorter than the length of the flat plane of the pin terminal.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: February 8, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Shiro Yamashita, Hideto Yoshinari
  • Patent number: 7881675
    Abstract: Improved electrical connector apparatus including a wireless transceiver is disclosed. The wireless transceiver is configured to pass signals between the terminals of the connector and an external device. In one embodiment, the device comprises a complementary wireless transceiver with a PC or other computerized device. In another embodiment, the connector comprises an RJ45 modular jack, and the wireless transceiver comprises a Bluetooth transceiver. In yet another embodiment, an 802.11 transceiver is used. In yet a further embodiment, an ultrawideband (UWB) interface is used.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: February 1, 2011
    Inventor: Robert F. Gazdzinski
  • Patent number: 7878827
    Abstract: An electrical connector includes an insulative housing, a number of electrical contacts and an IC (Integral Circuit). The insulative housing has a body and a contact insert received in the body. The electrical contacts are secured to the contact insert and each has a mating end, a solder end projecting out of the insulative housing and a connecting end located therebetween. The IC is bonded to contact insert for electrical connecting with the connecting ends of the electrical contacts, respectively.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: February 1, 2011
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Zhong-Hua Yao, Jia-Yong He, Qi-Sheng Zheng, Xiao-Min An
  • Patent number: 7874879
    Abstract: A communication jack having crosstalk compensation features for overall crosstalk interference reduction is disclosed. In one embodiment, the jack is configured to receive a plug to form a communication connection, and comprises jack contacts disposed in the jack, with each contact having at least a first surface and a second surface. Upon the plug being received by the jack, the plug contacts interface with the first surface of the jack contacts. The jack further includes a first capacitive coupling connected between two pairs of jack contacts to compensate for near end crosstalk, with the first capacitive coupling being connected to the pairs of jack contacts along the second surface adjacent to where the plug contacts interface with the jack contacts. A far end crosstalk compensation scheme is also set forth.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: January 25, 2011
    Assignee: Panduit Corp.
    Inventors: Jack E. Caveney, Masud Bolouri-Saransar
  • Patent number: 7862344
    Abstract: A contact module is provided for an electrical connector. The contact module includes a body having a mating edge portion and a mounting edge portion. A lead frame is held by the body. The lead frame includes a differential pair of terminals extending between the mating edge portion and the mounting edge portion. The differential pair includes a positive terminal and a negative terminal having positive and negative mating contacts, respectively, and positive and negative mounting contacts, respectively. The positive and negative mating contacts extend from the mating edge portion in a first orientation. The positive and negative mounting contacts extend from the mounting edge portion in a second orientation. The first orientation at the mating edge portion is inverted relative to the second orientation at the mounting edge portion.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: January 4, 2011
    Assignee: Tyco Electronics Corporation
    Inventors: Chad William Morgan, David Wayne Helster
  • Patent number: 7856709
    Abstract: The invention relates to a method for high-frequency tuning a high-frequency plug connector, comprising a printed circuit board that has both contact points for high-frequency contacts as well as contact points for insulation displacement contacts. Each contact point for the high-frequency contacts is connected to one respective contact point for the insulation displacement contacts. Capacitive couplings, which cause a near-end crosstalk, occur between the high-frequency contacts. At least one first conductor path, which is connected on only one side to a contact point of an electrical contact, is situated on the printed circuit board that, together with at least one second conductor path, which is situated on and/or in the printed circuit board, forms a capacitor.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: December 28, 2010
    Assignee: ADC GmbH
    Inventors: Peter Bresche, Ulrich Hetzer
  • Patent number: 7857635
    Abstract: Communications connectors are provided that include a printed circuit board that has a top side and a bottom side. These connectors each include a housing that receives at least a portion of the printed circuit board. The connectors include first through eighth input contacts that are mounted on the printed circuit board and first through eighth output contacts that are likewise mounted on the printed circuit board. The connectors further include a board edge termination assembly that has an opening that receives an edge of the printed circuit board. The board edge termination assembly has a body that is configured to receive a communications cable having at least eight conductors and to electrically connect the eight conductors to respective ones of the first through eighth output contacts.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: December 28, 2010
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert Ray Goodrich, Michael Walter Canning, Amid I. Hashim, Wayne D. Larsen, Nhan Huynh
  • Publication number: 20100323535
    Abstract: An electrical system includes a backplane, a first electrical component, and a second electrical component. The backplane includes a first column of connectors, a second column of connectors, a third column of connectors, and a fourth column of connectors. The backplane also includes a first plurality of conductive paths that couple the connectors in the first column to an alternating sequence of connectors in the third column and the fourth column. Additionally, the backplane includes a second plurality of conductive paths that couple the connectors in the second column to an alternating sequence of connectors in the fourth column and the third column. The first electrical component couples to the backplane through the first column and the second column. The second electrical component couples to the backplane through the third column and the fourth column.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 23, 2010
    Applicant: Fujitsu Network Communications, Inc.
    Inventor: Stephen J. Brolin
  • Patent number: 7854632
    Abstract: A connector and method of crosstalk compensation within a connector is disclosed. The method includes determining an uncompensated crosstalk, including an uncompensated capacitive crosstalk and an uncompensated inductive crosstalk, of a wired pair in a connector. The uncompensated crosstalk includes common mode and differential mode crosstalk. The method includes applying at least one inductive element to the wired pair, where the at least one inductive element is configured and arranged to provide balanced compensation for the inductive crosstalk caused by the one or more pairs. The method further includes applying at least one capacitive element to the wired pair, where the at least one capacitive element is configured and arranged to provide balanced compensation for the capacitive crosstalk caused by the one or more wired pairs.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: December 21, 2010
    Assignee: ADC GmbH
    Inventors: Stuart James Reeves, David Patrick Murray, Ian Robert George, Bernard Harold Hammond, Jr.
  • Patent number: 7845961
    Abstract: An electrical connector (100) includes an insulative housing (1), a set of contacts (2) retained in the insulative housing and arranged in one row, and a metal shell (3) covering the insulative housing. The contacts (2) consist of a first type of grounding contacts (G) and a second type of a set of pairs of differential contacts (21, 22, 23, 24). The metal shell has a receiving space (30) for receiving a matchable plug.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: December 7, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Zi-Qiang Zhu, Jerry Wu, Hong-Qiang Han, Chen-Xi Wang
  • Patent number: 7841909
    Abstract: Methods and systems for providing crosstalk compensation in a jack are disclosed. According to one method, the crosstalk compensation is adapted to compensate for undesired crosstalk generated at a capacitive coupling located at a plug inserted within the jack. The method includes positioning a first capacitive coupling a first time delay away from the capacitive coupling of the plug, the first capacitive coupling having a greater magnitude and an opposite polarity as compared to the capacitive coupling of the plug. The method also includes positioning a second capacitive coupling at a second time delay from the first capacitive coupling, the second time delay corresponding to an average time delay that optimizes near end crosstalk. The second capacitive coupling has generally the same overall magnitude but an opposite polarity as compared to the first capacitive coupling, and includes two capacitive elements spaced at different time delays from the first capacitive coupling.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: November 30, 2010
    Assignee: ADC GmbH
    Inventors: David Patrick Murray, Bernard Harold Hammond, Jr.
  • Patent number: 7837514
    Abstract: An electrical connector assembly includes a plug connector and a receptacle connector. The plug connector has plug contacts and a shroud partially surrounding the plug contacts. The shroud has a shape that is elongated along a longitudinal axis. The stood frames the plug contacts. The receptacle connector has a nose with a shape that is elongated along the longitudinal axis. The nose includes a plurality of slots formed therein and oriented along a transverse axis relative to the longitudinal axis. The plug contacts are separated from the shroud such that when the plug and receptacle connectors are co-nested with one another, the nose is received in the shroud and the plug contacts are received in a corresponding one of the slots in order to mate the plug and receptacle connectors.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: November 23, 2010
    Assignee: Tyco Electronics Corporation
    Inventor: Michael Warren Fogg
  • Patent number: 7837492
    Abstract: An electrical connector includes an insulative housing and a number of conductive contacts received in the insulative housing. Each conductive contact has a contacting portion, an engaging portion and an extension portion electrically connecting with the contacting portion and the engaging portion. A node is disposed in the extension portion for matching characteristic impedance of the conductive contact, and a positioning portion is disposed in the insulative housing corresponding to the node for cooperating with the node to restrict movement of the node. The electrical connector in accordance with the present invention can match characteristic impedance of the conductive contact to realize impedance match and can assure precise positioning of the conductive contact.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 23, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Yu Zhu
  • Publication number: 20100291795
    Abstract: A method of improving electrical isolation between a first circuit and a second circuit sharing a common substrate having an effective dielectric constant greater than that of air. The first and second circuits are spaced apart and separated from one another by an intermediate portion of the substrate. The method includes removing a portion of the intermediate portion to replace the portion removed with air thereby reducing the effective dielectric constant of the intermediate portion. By reducing the effective dielectric constant of the intermediate portion, electrical isolation between the first and second circuits is improved thereby reducing crosstalk between the first and second circuits. In particular implementations, the method may be used to reduce alien crosstalk between adjacent communication outlets in a patch panel.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 18, 2010
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Adam W. Gibson, Jeffrey Alan Poulsen
  • Patent number: 7833026
    Abstract: An electrical connector assembly includes a circuit board having vias each extending at least partially through the circuit board along parallel via axes and an electrical connector configured to be mounted on the circuit board. The electrical connector includes a plurality of variable depth signal terminals configured to extend different depths into respective vias of the circuit board. The signal terminals each have a terminal axis, and the signal terminals are arranged in pairs carrying differential pair signals. The signal terminals of each pair extend to the same depth in the respective vias of the circuit board. The terminal axes of the signal terminals of each pair are offset with respect to the corresponding via axes along a majority of the signal terminals within the vias.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: November 16, 2010
    Assignee: Tyco Electronics Corporation
    Inventors: Chad William Morgan, David Wayne Helster, Michael William Woodford
  • Patent number: 7828603
    Abstract: An electrical connector with crosstalk compensation includes a substrate (10), a first conducting group (G1), a second conducting group (G2), a first metal conducting wire (C1), and a second metal conducting wire (C2). A first conducting pair (S21) of the second conducting group (G2) is electrically connected to a first conducting pair (S11) of the first conducting group (G1) to form a first signal loop pair (L1). Furthermore, a second conducting pair (S22) of the second conducting group (G2) is electrically connected to a second conducting pair (S12) of the first conducting group (G1) to form a second signal loop pair (L2). The first metal conducting wire (C1) and the second metal conducting wire (C2) are electrically connected to a second conductor (R21) and a fourth conductor (R22) of the second conducting group (G2), respectively.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: November 9, 2010
    Assignee: YFC-Boneagle Electric Co., Ltd.
    Inventors: Ying-Ming Ku, Yi-Huang Lee
  • Patent number: 7828564
    Abstract: A card edge connector for receiving a module, includes an elongated insulative housing having a pair of side walls, a central slot extending therebetween for insertion of the module, a plurality of terminals positioned in the side walls and extending into the central slot; and a pick-up member having a fixing portion and a connect portion connecting the fixing portion. the insulative housing includes a latch pair of portions formed on opposite ends thereof and disposed at an outer sides of the terminals along a lengthwise direction thereof, the latch portion fixes with the fixing portion of the pick-up member.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: November 9, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd
    Inventors: Hai-Fei Guan, Lei Li, Xue-Wu Bu
  • Patent number: 7823281
    Abstract: An apparatus and method for crosstalk compensation in a jack of a modular communications connector includes a flexible printed circuit board connected to jack contacts and to connections to a network cable. The flexible printed circuit board includes conductive traces arranged as one or more couplings to provide crosstalk compensation.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: November 2, 2010
    Assignee: Panduit Corp.
    Inventors: Jack E. Caveney, Masud Bolouri-Saransar, Scott M. Lesniak
  • Patent number: 7824193
    Abstract: A connector capable of suppressing crosstalk between adjacent different pairs of signal lines on a printed circuit board, and facilitating impedance matching. The connector includes first signal contacts each including a signal terminal portion, second signal contacts each including a signal terminal portion, first ground contacts each including bifurcated terminal portions, second ground contacts each including a terminal portion, and a housing which holds these contacts. Each signal terminal portion, bifurcated terminal portion and terminal portion are mounted on a printed circuit board. Virtual lines connecting terminal portions forming each first terminal portion group form a quadrangle. Virtual lines connecting terminal portions forming each second terminal portion group form a triangle. The first and second terminal portion groups are arranged along a predetermined direction in an alternating manner.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: November 2, 2010
    Assignee: Japan Aviation Electronics Industry Limited
    Inventors: Takayoshi Oyake, Yohei Yokoyama
  • Patent number: 7798857
    Abstract: Methods and systems for compensating for alien crosstalk generated by one or more of a plurality of wire pairs in a telecommunications jack are disclosed. One method includes positioning a crosstalk compensation arrangement relating to crosstalk across at least a first wire pair and a second wire pair on a circuit board within a telecommunications jack. The method also includes altering the crosstalk compensation arrangement to accommodate at least one zone of crosstalk compensation having an asymmetric capacitive coupling between a first wire pair and a second wire pair to reduce alien crosstalk generated from one of the first and second wire pairs. Specific jacks and compensation arrangements are disclosed as well.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: September 21, 2010
    Assignee: ADC GmbH
    Inventors: Bernard Harold Hammond, Jr., David Patrick Murray
  • Patent number: 7794287
    Abstract: An electrical connector (100) includes an insulative housing (40) and a terminal module (10). The terminal module includes a dielectric wafer (2), a number of terminals (1) assembled within the dielectric wafer and a coupling foil (3) disposed on the dielectric wafer and having a plurality of circuit traces (31-34) extending along a first plane. Each terminal is formed with a joint (134-164). The circuit trace includes a body portion (312-342) aligned with a selected terminal of the number of terminals and a connection portion (311-341) fanning out from the body portion toward a specific terminal. The joint of the specific terminal comes to contact with the connection portion along a contact direction orthogonal to the first plane.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: September 14, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Tod M. Harlan, Terrance F. Little
  • Patent number: 7789678
    Abstract: A plurality of contacts are assembled at prescribed spacings in a longitudinal direction of a receptacle body. Each contact has a meandering curved part in the intermediate portion for elastically contacting the corresponding contact. A ground member extending in a longitudinal direction of the receptacle body and passes through the inner area of the respective meandering curved parts of the contacts is combined with the receptacle body. The ground member is arranged at a position equally distant from the respective parts of the meandering curved part.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: September 7, 2010
    Assignee: Hosiden Corporation
    Inventors: Takayuki Nagata, Hayato Kondo
  • Patent number: 7789716
    Abstract: An electrical terminal of the type to be inserted into an aperture of an electrical panel member is provided. The electrical terminal may include a base, an insertion portion extending from the base to a first end, a slit formed through the insertion portion and defining a compliant portion having a first leg and a second leg. A segment of the first leg may be deformed in one direction, while a segment of the second leg may deformed in the opposite direction. Midpoints of each or both legs may be offset from the midpoint of the slit to achieve improved mechanical and electrical performance within a connector. Also provided is an electrical terminal having a tip that facilitates alignment with a panel member aperture and provides tactile feedback to a user, as well as an electrical terminal having a mounting end that is substantially smaller than its mating end, and connectors containing such terminals. Methods of routing electrical traces between adjacent electrical terminals are also provided.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: September 7, 2010
    Assignee: Tyco Electronics Corporation
    Inventors: James L. Fedder, Douglas W. Glover, David W. Helster, Chad W. Morgan, Brent Rothermel, Alex M. Sharf, Attalee S. Taylor, David A. Trout
  • Patent number: 7787615
    Abstract: The present disclosure relates to a telecommunications jack including a housing having a port for receiving a plug. The jack also includes a plurality of contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing, and a plurality of wire termination contacts for terminating wires to the jack. The jack further includes a circuit board that electrically connects the contact springs to the wire termination contacts. The circuit board includes a crosstalk compensation arrangement for reducing crosstalk at the jack. The circuit board also includes arrangements that reduce return loss at the jack.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: August 31, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventors: Bernard Harold Hammond, Jr., David Patrick Murray, Ian Robert George
  • Patent number: 7778332
    Abstract: Embodiments of the present invention provide a method and a device for crosstalk test in multi-subscriber communication line. The core of embodiments includes: first, transmitting a test signal in a selected line; then, receiving the signal in the line to be tested, and calculating the received signal according to the transmitted test signal; thus, determining whether there is crosstalk between the line to be tested and the selected line according to the calculation result, as well as the value of the crosstalk if the crosstalk exists.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: August 17, 2010
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Qingquan Shi
  • Patent number: 7762843
    Abstract: An electrical connector may include a first connector with electrically-conductive contacts. The contacts may have blade-shaped mating ends, and may be arranged in a centerline. The electrical connector may include a second connector with electrically-conductive receptacle contacts, which may also be arranged in a centerline. The connectors may be mated such that the mating portion of a first contact in the second connector may physically contact of a corresponding blade-shaped mating end of a contact in the first connector.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: July 27, 2010
    Assignees: FCI Americas Technology, Inc., FCI
    Inventors: Steven E. Minich, Douglas M. Johnescu, Stefaan Hendrik Jozef Sercu, Jonathan E. Buck
  • Patent number: 7758385
    Abstract: An electrical connector includes a housing having a mating face and a mounting face. A plurality of signal contacts are held by the housing with the signal contacts being arranged in differential pairs to form signal contact pairs. Each signal contact has a body, a contact pin extending from one end of the body along a pin axis and a contact tail extending from an opposite end of the body. The body extends along a contact plane. The contact pin includes a transition section that off-sets the contact pin out of the contact plane in a first lateral direction. The contact tail lies in the contact plane and is off-set in a transverse direction with respect to the pin axis.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: July 20, 2010
    Assignee: Tyco Electronics Corporation
    Inventors: Wayne Samuel Davis, Robert Neil Whiteman, Jr.
  • Publication number: 20100167589
    Abstract: Methods and systems for compensating for crosstalk in a telecommunications jack are disclosed. One method includes manufacturing a circuit board having a zone of crosstalk compensation between a first wire pair and a second wire pair, the zone of crosstalk compensation including a capacitive coupling connected between the first wire pair and the second wire pair and a second capacitive coupling selectively connectable in parallel with the capacitive coupling. The method further includes determining a crosstalk value generated by the jack including the manufactured circuit board. The method also includes, upon determining that the crosstalk value is outside of a crosstalk pass band, adjusting the zone of crosstalk compensation by altering an electrical connection between the second capacitive coupling and the capacitive coupling after the circuit board has been manufactured.
    Type: Application
    Filed: November 24, 2009
    Publication date: July 1, 2010
    Inventors: Bernard Harold Hammond, JR., David Patrick Murray, Gordon John White, Ian Robert George
  • Patent number: 7742387
    Abstract: Systems and methods for reducing crosstalk are provided. In one implementation, a method is provided. The method includes applying a pilot signal to a disturber twisted pair and measuring near end crosstalk of a victim twisted pair. The coupling characteristics between the disturber and the victim twisted pair are determined. A far end crosstalk function is derived for estimating the far end crosstalk in the victim twisted pair using the determined coupling characteristics. A crosstalk reduction signal is determined using the estimated far end cross talk. The crosstalk reduction signal is injected into the victim twisted pair to reduce crosstalk in the victim twisted pair.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: June 22, 2010
    Assignee: New Wire Systems, Inc.
    Inventor: Jan C. Hobbel
  • Patent number: 7736195
    Abstract: A communications outlet includes eight outlet tines positioned adjacent one another and defining four pairs of outlet tines. The fourth and fifth outlet tines define a first pair, the first and second outlet tines define a second pair, the third and sixth outlet tines define a third pair, and the seventh and eighth outlet tines define a fourth pair. Each outlet tine has a free end near to which a plug contact is adapted to touch and each outlet tine has a fixed end coupled through a corresponding conductive trace to a corresponding conductive wire termination contact. The communications outlet includes a first modal alien crosstalk compensation stage connected to the outlet tines associated with the second, third, and fourth pairs.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: June 15, 2010
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Jeffrey Alan Poulsen, Jason Erickson, Jeffrey P. Seefried
  • Patent number: 7731525
    Abstract: The present invention relates to methods and systems for minimizing alien crosstalk between connectors. Specifically, the methods and systems relate to isolation and compensation techniques for minimizing alien crosstalk between connectors for use with high-speed data cabling. A frame can be configured to receive a number of connectors. Shield structures may be positioned to isolate at least a subset of the connectors from one another. The connectors can be positioned to move at least a subset of the connectors away from alignment with a common plane. A signal compensator may be configured to adjust a data signal to compensate for alien crosstalk. The connectors are configured to efficiently and accurately propagate high-speed data signals by, among other functions, minimizing alien crosstalk.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: June 8, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventors: Bernard Hammond, Jr., Timothy G. Pimentel
  • Publication number: 20100136835
    Abstract: A connector is provided for simultaneously improving both the NEXT high frequency performance when low crosstalk plugs are used and the NEXT low frequency performance when high crosstalk plugs are used. The connector includes a first compensation structure provided on an inner metalized layer of the PCB at a first stage area of the PCB, and a second compensation structure, provided at a second stage area of the PCB, for increasing compensation capacitance with increasing frequency.
    Type: Application
    Filed: February 2, 2010
    Publication date: June 3, 2010
    Inventors: Amid Hashim, Julian Robert Pharney
  • Patent number: 7726018
    Abstract: A method for reducing crosstalk between a plurality of wires in a network cable using a network cable jack that includes a printed circuit board (PCB) for balancing both inductive and capacitive coupling. The method includes using two distinct inductance zones separated by a neutral zone. Significant gains in degrees of freedom are achieved for designing PCB trace patterns in which a pair of inductive coupling zones jointly offset the inductive coupling caused by a specification plug and the jack contacts, both in magnitude and phase angle. Further, using distinct inductance zones offers more freedom regarding the placement of capacitive plates for use in capacitance balancing as well as the placement of terminals and insulation displacement contacts. Although the magnitude of a capacitive coupling is determined by the length of the capacitor plates parallel to current carrying traces, the approach allows capacitive and inductive coupling to be balanced independently.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: June 1, 2010
    Assignee: Panduit Corp.
    Inventors: Jack E. Caveney, Scott M. Lesniak
  • Patent number: 7722390
    Abstract: The present invention relates to methods and systems for minimizing alien crosstalk between connectors. Specifically, the methods and systems relate to isolation and compensation techniques for minimizing alien crosstalk between connectors for use with high-speed data cabling. A frame can be configured to receive a number of connectors. Shield structures may be positioned to isolate at least a subset of the connectors from one another. The connectors can be positioned to move at least a subset of the connectors away from alignment with a common plane. A signal compensator may be configured to adjust a data signal to compensate for alien crosstalk. The connectors are configured to efficiently and accurately propagate high-speed data signals by, among other functions, minimizing alien crosstalk.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: May 25, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventors: Damon Debenedictis, Bernard Hammond, Jr., Robert Kenny, David Yanish
  • Patent number: 7713094
    Abstract: A communication connector including a plug and jack configured to lessen potential for crosstalk caused by unintended mode conversion coupling along wire pairs connected to tine pair 2 (tines T1 and T2) and tine pair 4 (tines T7 and T8). In the plug, twisted pair 2, connected to tine pair 2, and twisted pair 4, connected to tine pair 4, exchange lateral positions with one another thereby reducing differential voltage therebetween and unwanted transmission line mode conversion coupling. In the jack, cross-members and insulators laterally exchange longitudinal routing of the jack tine pair 2 with the jack tine pair 4 for those portions extending away from the plug engagement area of the jack. In particular, the longitudinal routing between tine T1 and tine T8 are laterally exchanged and longitudinal routing between tine T2 and tine T7 are laterally exchanged.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: May 11, 2010
    Assignee: Leviton Manufacturing Co., Inc.
    Inventor: Bryan L. Sparrowhawk
  • Patent number: 7708603
    Abstract: An electrical connector (100) includes a number of conductive contacts (21-28), a first capacitive plate (31) and an insulator (40) fixing the number of conductive contacts (21-28) and the capacitive plate (31). The number of conductive contacts further include a first pair of conductive contacts (21, 22) to form a first signal channel and a second pair of conductive contacts (23, 26) to form a second signal channel. The first capacitive plate (31) is electrically connected with one conductive contact (23) of the second pair. The first capacitive plate (31) is disposed closer to one conductive contact (21) of the first pair than the conductive contact (23) which the first capacitive plate (31) is electrically connected to. The insulator (40) is partially hollowed out between the first capacitive plate (31) and the corresponding conductive contact (21) of the first pair to improve the crosstalk between the first and the second signal channels.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: May 4, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Terrance Little
  • Patent number: 7686650
    Abstract: A jack capable of handling both Category 6 and Category 7 speed communications. The jack includes a shield, a housing disposed in the shield and a contact block disposed in the housing. The contact block includes a base member and a plurality of contacts carried by the base member. Each contact includes a contact portion effective to touch a corresponding contact of a plug when the plug is inserted into the jack, a first end portion effective to be inserted into a circuit board, and a second end portion. A flexible substrate is connected to the second end portion, the substrate including a compensation circuit for the jack.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: March 30, 2010
    Assignee: Bel Fuse Ltd.
    Inventors: Yakov Belopolsky, David Blankenship, David Gutter, Richard Marowsky
  • Patent number: 7677930
    Abstract: A connector is provided for simultaneously improving both the NEXT high frequency performance when low crosstalk plugs are used and the NEXT low frequency performance when high crosstalk plugs are used. The connector includes a first compensation structure provided on an inner metalized layer of the PCB at a first stage area of the PCB, and a second compensation structure, provided at a second stage area of the PCB, for increasing compensation capacitance with increasing frequency.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: March 16, 2010
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Amid Hashim, Julian Robert Pharney
  • Publication number: 20100062644
    Abstract: Compensation schemes for a modular jack are provided according to the present disclosure. The compensation schemes advantageously include a first coupling of compensating crosstalk between a first pair of conductors and a second pair of conductors and a second coupling of compensating crosstalk between only a first conductor of the first pair of conductors and only a first conductor of the second pair of conductors, wherein the first and second couplings of compensating crosstalk are of opposite polarities. In exemplary embodiments, the first coupling of compensating crosstalk may be provided by a circuit board, such as a flexible circuit board including a plurality of interconnection elements, e.g., capacitors, for providing the first coupling of compensating crosstalk. Alternatively, the first coupling of compensating crosstalk may be provided by a plurality of plug interface contacts associated with the first and second pairs of conductors.
    Type: Application
    Filed: October 9, 2009
    Publication date: March 11, 2010
    Applicant: ORTRONICS, INC.
    Inventors: Robert A. Aekins, Mark E. Martich
  • Publication number: 20100055969
    Abstract: A communication connector uses compensation circuitry to compensate for crosstalk in a network connection. Capacitors are connected between specific conducive paths in said communication connector. Inductive stubs are utilized in the compensation circuitry to improve the overall compensation performance.
    Type: Application
    Filed: August 13, 2009
    Publication date: March 4, 2010
    Applicant: PANDUIT CORP.
    Inventors: Frank M. Straka, Michael K. Yuan
  • Patent number: 7670199
    Abstract: An electric connector includes an insulative body and groups of contacts. The contacts are disposed in spaced relationship inside the body and arranged in at least two rows in a lateral direction of the body. The groups of contacts include a plurality of first contacts; and a plurality of second contacts located in a different row from a row where their associated first contacts exist, the second contacts being arranged next to the first contacts. Out of one of the first contacts and one of the second contacts subject to impedance tuning, one of these two contacts has a width and an area thereof adjusted in accordance with a difference in impedance from impedances between other first and second contacts.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: March 2, 2010
    Assignee: Hosiden Corporation
    Inventors: Takayuki Nagata, Hayato Kondo
  • Patent number: 7666009
    Abstract: Disclosed are an electrical connector and a method for providing transmit and receive electrical signal contacts to reduce or minimize total crosstalk. Such methods may be particularly suitable for connectors having larger near-end crosstalk aggressors than far-end crosstalk aggressors. The electrical signal contacts may be subdivided on a substrate, such as a midplane PCB, and through the opposing connectors, such that the transmitting contacts are all on one side of the connector and the receiving contacts are on the other side of the connector, with a buffer between them. The buffer may comprise a plurality of “dummy” or “buffer” contacts, which may be unassigned or devoid of electrical connectivity. This is one step beyond the primary assignment of contacts as single-ended or differential signal contacts. The contacts themselves may also receive a secondary assignment according to their desired transmitting, receiving, or buffering function.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: February 23, 2010
    Assignee: FCI Americas Technology, Inc.
    Inventors: Steven E. Minich, Christopher J. Kolivoski, Stephen B. Smith, Gary J. Oleynick
  • Patent number: 7658648
    Abstract: A method is provided for automatically accommodating plugs having different contract layouts. Steps of the method include providing a jack assembly supporting a plurality of contacts accessible to a plug-receiving space, the plurality of contacts including eight contacts in side-by-side relation and two additional contact pairs positioned in opposed corners of the plug-receiving space, four central contacts of the eight side-by-side contacts defining bi-sectional members, and at least one capacitive element being provided in electrical communication with front end portions of at least two of the bi-sectional members. Noise generated through insertion of a plug into the plug-receiving space is automatically compensated for, whether the plug is an RJ-45 plug configured to interact with the eight contacts in side-by-side relation, or an IEC 60603-7-7 compliant plug configured to interact with at least the two additional contact pairs positioned in opposed corners.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: February 9, 2010
    Assignee: Ortronics, Inc.
    Inventor: Robert A. Aekins
  • Patent number: 7658651
    Abstract: An electrical connector includes a housing and a plurality of contacts within the housing that are configured to engage with mating contacts of a mating connector. The contacts form at least a first differential pair and a second differential pair. The electrical connector also includes a circuit board housed within the housing. The circuit board has a substrate body formed from a dielectric material and includes a first trace electrically coupled to a contact of the first differential pair and a second trace electrically coupled to a contact of the second differential pair. At least one of the first and second traces is an open-ended trace. The circuit board also has a non-ohmic plate that is positioned adjacent to the traces. The plate is positioned to electromagnetically couple the first and second traces to each other and the non-ohmic plate and traces are configured for a desired electrical performance.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: February 9, 2010
    Assignee: Tyco Electronics Corporation
    Inventors: Paul John Pepe, Shawn Phillip Tobey, Sheldon Easton Muir, Steven Richard Bopp
  • Patent number: 7654831
    Abstract: A cable assembly (1000) includes a housing (1) has a receiving space (10), said receiving space including a hollow portion and a mating port located in front of the hollow portion; a spacer (4) located in the receiving space; a first and second printed circuit boards (31, 32) partially enclosed within the spacer and arranged apart from one another, both the first and second printed circuit boards having mating interfaces extending into the mating port and mounting portions disposed in the hollow portion; a metallic plate (2) assembled to the spacer and disposed between the pair of first and second printed circuit boards; a plurality of cables (7) coupled to the mounting portions of the pair of first and second printed circuit boards, respectively.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: February 2, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Jerry Wu
  • Patent number: RE41206
    Abstract: The invention relates to a connecting cable (10) comprising a cable (10) with four conductor pairs (1, 2; 3, 6; 4, 5; 7, 8) which are routed in pairs in a defined manner in the cable (10), with an identical electrical plug connection being arranged at both ends of the cable (10), with a cable manager (11, 17) having guides (21-28; 31-38) for the conductors (1-8) being arranged at each of the two cable ends for fixing and defined guidance, in which guides the conductors (1-8) of the cable (10) are routed to the electrical contacts (41-48), with the cable managers (11, 17) each having a top face (16), a bottom face (15, 19), a rear face (12, 20) and an end surface (13, 18), and with the guides (21, 22, 27, 28; 31, 32, 37, 38) of the conductors (1, 2, 7, 8) which are associated with the two outer contact pairs (41, 42, 47, 48) being formed on the sides of the cable managers (11, 17) at right angles to the end surfaces (13, 18) of the cable managers (11, 17), and, from the rear face (12) to the end surface (13) i
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: April 6, 2010
    Assignee: ADC GmbH
    Inventors: Michael Gwiazdowski, Frank Mossner
  • Patent number: RE41250
    Abstract: An electrical connector including a spring mounting body having a clip receiving structure. A plurality of contact springs are mounted on the spring mounting body. A clip is inserted within the clip receiving structure to stabilize the contact springs. Portions of the contact springs are captured between the clip and the spring mounting body. A method for assembling the electrical connector is also disclosed.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: April 20, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventor: Roy L. Henneberger
  • Patent number: RE41311
    Abstract: An electrical connector for conducting high frequency signals includes a number of input and output terminals that are interconnected by a pair of metallic lead frames that are mounted on a dielectric spring block. The lead frames are identical to each other and comprise several flat elongated conductors, each conductor terminating in a spring contact at one end and an insulation-displacing connector at the other. The lead frames are mounted on top of each other and their conductors are all generally parallel and close to each other. Only three of the conductors of each lead frame are arranged to overlap each other; and this occurs in a designated crossover region without electrical contact being made because of a reentrant bend in the conductors in the crossover region. As a result, crosstalk between specific conductors can be reduced by judiciously choosing the location of the crossover and the particular crossover pattern.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: May 4, 2010
    Assignee: CommScope, Inc. of North America
    Inventors: W. John Denkmann, Willard A. Dix, William T. Spitz