Patents Assigned to ADC Telecommunications
  • Patent number: 6950957
    Abstract: Phase locked loops operable at low reference clock signal frequencies include a phase comparator having a phase detector, a digital counter, and a digital-to-analog converter. The phase detector provides an error signal indicative of a phase relationship between the reference clock signal and a feedback signal. The digital counter provides a count value indicative of the amount of phase error between the reference clock signal and the feedback signal. The digital-to-analog converter provides an error voltage signal proportional to the count value. Such phase comparators permit direct measurement of the amount of phase error prior to filtering and amplification by the phase locked loop. Direct measurement of the amount of phase error can be used to reduce the likelihood of saturating an amplifier of an active filter of the phase locked loop without the use of a pre-filter. Such phase locked loops are suitable for use in timing circuits of communications systems.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: September 27, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventor: William O'Leary
  • Patent number: 6950574
    Abstract: The invention relates to an approach to angle tuning a thin film, interference filter device in which light is delivered to the filter from a fiber lying off-axis relative to the filter, and to a method of optically coupling such a device. The optical device comprises a lens unit having an optical axis and an adjustable effective focal length. The device also includes a first port disposed on a first side of the lens unit and on a first side of the optical axis, and an optical element disposed on the second side of the lens unit. The optical element has an optical characteristic that is dependent on the angle of incidence on the optical element. The lens unit has an adjustable focal length so light from the first port is incident on the optical element at a desired angle.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: September 27, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: Timothy S. Gardner, Ronald E. Gerber, Edward C. Gage
  • Publication number: 20050208904
    Abstract: A telecommunications chassis, module, and repeater circuit for use with signals having data rates including STM-1 (155.52 megabits per second) are disclosed. The chassis provides structures for establishing shielding and heat dissipation for the circuitry modules it contains including an outer and an inner Faraday box with an integrated ventilation pattern for circulating air. The module provides its own structures for establishing shielding and heat dissipation including a Faraday box and a ventilation pattern. The repeater circuit provides the ability to bridge a data signal between a monitor jack of one device and a higher signal level input jack of another device through multiple amplification stages and circuit board structures. The telecommunications chassis, module, and repeater circuit can be used in conjunction.
    Type: Application
    Filed: May 10, 2005
    Publication date: September 22, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventors: Eric Sit, Robin Berg, Brian McClellan, Steven Skradde, David Streitz, John Anderson, Gary Steinkogler, Eric Comer
  • Patent number: 6947654
    Abstract: A cable clip includes a housing defining an open space and outer grooves about the housing for mounting the cable clip into a mounting opening, the inner edge of the housing including trumpet flares around the edges of the ends and side to provide bend radius protection for cables passing through the clip and a gate closing off the open sided space. The gate may be attached to the housing by a living hinge.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 20, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: Dennis J. Krampotich, Thomas C. Tinucci, John C. Holman
  • Publication number: 20050201710
    Abstract: A wall mount chassis includes circuitry for telecommunications signals. The chassis includes a rear wall mountable to a vertical wall, and first and second sides. Each side includes a hinged cover. Each cover includes an access window for viewing an opposite side of the cover. On one side of the chassis is positioned signal converter cards for converting between optical and electrical signals. On an opposite side of the chassis are positioned one or more electrical power cards providing an access location for power to the circuitry. A CPU card can also be provided on the same side as the power card. An interior of the chassis includes a back plane positioned between the converter cards and the power and CPU cards wherein the back plane is perpendicular to the converter cards and power and CPU cards. A cable spool is positioned adjacent one of the sides for cable management. Cable clips are provided for securably retaining one or more cables adjacent each of the first and second sides.
    Type: Application
    Filed: February 8, 2005
    Publication date: September 15, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventors: Gordon Clark, Loren Mattson
  • Publication number: 20050202728
    Abstract: A DSX system for receiving removable jack inserts is disclosed. The system includes a plurality of chassis rearward facing cross-connect arrays and rearward facing IN/OUT arrays. A first circuit board section and a second circuit board section are electrically connected to the arrays. The first circuit board section is positioned behind the removable jack inserts. The second circuit board section is positioned behind the first circuit board section and in front of the cross-connect array and the IN/OUT array.
    Type: Application
    Filed: May 4, 2005
    Publication date: September 15, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventors: Scott Baker, James Dewey, Dominic Louwagie
  • Patent number: 6944383
    Abstract: A cable management panel for telecommunications cables. A chassis holds a slideable drawer. The drawer includes cable terminations or splices. The drawer further includes a radius limiter which moves with synchronized movement with movement of the drawer. Cables enter the chassis through a side wall, such as located adjacent the rear of the chassis. The radius limiter manages a slack loop of cable disposed within the chassis.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: September 13, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: Daniel M. Herzog, Chad J. Sjodin
  • Patent number: 6942491
    Abstract: A bulkhead connector for connecting to a transmission line comprising a rear portion mounted within an opening in a bulkhead with a first end including first and second threads on a first side of the bulkhead and a second end extending through the opening to a second opposing side of the bulkhead. A front connector body and a front shell assembly are threadably attached to the rear portion with an insulator sleeve positioned between them. The front shell assembly includes a front shell with threads for attaching to the rear portion and a center conductor mounted within an insulator. The insulator is mounted within a central opening of the front shell and electrically isolates the center conductor from the front shell. The second end of the rear portion including threads received within the opening in the bulkhead.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: September 13, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventor: M'hamed Anis Khemakhem
  • Patent number: 6944292
    Abstract: A splitter card including a circuit board on which line, data and voice connectors are mounted. The connectors include contacts electrically connected to termination posts that extend through the circuit board such that ends of the termination posts are exposed. A plurality of splitters are connected to the circuit board for splitting composite signals into voice and data signals. The circuit board includes conductive paths for directing composite signals from the line connector to the splitters, for directing voice signals from the splitters to the voice connectors, and for directing data signals from the splitters to the data connectors. Dielectric insulator members are connected to the circuit board to cover the exposed ends of the termination posts.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: September 13, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: Amy J. Witty, Jason Piehl
  • Patent number: 6940730
    Abstract: A chassis and associated telecommunication circuit card are disclosed. The chassis has heat dissipation and flame containment features while accommodating a high density of the circuitry cards. Embodiments include an inner housing with a double-layer middle floor dividing the chassis into top and bottom chambers. Each layer has partially aligned slots, and an air gap is provided between the two layers. Embodiments also include a double-layer mesh cover with an air gap existing between the two mesh layers. Projections and grooves are provided on the inner surfaces of the inner housing to receive circuit cards having a guide on one edge and a fin on another. The circuit card includes conductor structures such as multiple board layers with paired and segregated conductors. The circuit card also includes some components positioned to cooperate with the ventilation features of the chassis and includes some components chosen for low-power consumption or reduced flammability.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: September 6, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: Robin Berg, Jr., Todd Husom, Derek Sayres
  • Patent number: 6940810
    Abstract: A ring network is provided. The ring network includes a number of network elements, each including first and second switch fabrics. At least two uni-directional busses are coupled between the first and second switch fabrics. A number of ring segments are coupled between adjacent network elements to form first and second routes for transporting cells using virtual connections wherein, for each virtual connection, one route is the working route and the other route is the protection route. The first and second switch fabrics of each network element are associated with one of the first and second routes.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: September 6, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventor: Marlon B. Roa-Diaz
  • Publication number: 20050190520
    Abstract: A power distribution panel having circuit elements such as KTK and GMT fuses removably mounted to a unit housing by means of module members, thereby allowing for ease of customization of the circuit elements of the power distribution panel.
    Type: Application
    Filed: March 28, 2005
    Publication date: September 1, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventors: David Schomaker, Carlos Arroyo Gonzales, Delfino Hernandez, Luis Sanchez Aguilar, Narciso Delgado Guevara, Celsa Mora Curiel
  • Publication number: 20050191884
    Abstract: A method for confining circuit cards to different locations within a housing is provided. The housing includes a frame having an array of slots, each containing one of the circuit cards. In one embodiment, the receptacle has a cam that is selectively engageable with the frame for clamping the circuit cards within the frame. In another embodiment, a shaft is rotatably attached to the receptacle. The shaft has a head at one end and a nut opposite the head. A resilient element is disposed on the shaft between the head and the nut. The resilient element is axially compressible between the head and nut to bulge generally perpendicularly to the axial direction into engagement with the frame for clamping the circuit cards within the frame.
    Type: Application
    Filed: April 5, 2005
    Publication date: September 1, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventors: Gary Gustine, Charles Ham, Matthew Kusz, Michael Sawyer
  • Publication number: 20050191881
    Abstract: A cross-connect module is disclosed herein. The cross-connect module includes a housing having a front end and a rear end. The rear end includes a rear wall defining connector mounting openings. First and second switching jacks are positioned adjacent the front end of the housing. Rear connectors mount within the connector mounting openings. Cables electrically couple the rear connectors to the switching jacks. A tracer lamp circuit including a power connector and a pin jack are also provided. In depicted embodiments, the rear connectors, the pin jack and the power connector are secured to the rear wall of the housing by snap-fit connections. The depicted module also includes a front cover having structure for providing snap-fit connections with the switching devices.
    Type: Application
    Filed: November 1, 2004
    Publication date: September 1, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventors: Jeffrey Norris, Shari Kluempke
  • Publication number: 20050191901
    Abstract: A telecommunications patch panel is provided having a plurality of connector modules rotatably mounted to a frame member. Each connector module has a front face and an opposite facing rear face, and each front face includes a plurality of connector jacks. Each rear face includes a plurality of wire termination blocks. The wire termination blocks are electrically connected to the connector jacks. Each connector module is rotatable about a rotation axis relative to the frame member. A lock selectively locks each connector module to the frame member as desired. The connector jacks and the connector modules are arranged in linear arrays perpendicular to the axis of rotation.
    Type: Application
    Filed: April 22, 2005
    Publication date: September 1, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventor: Michael Follingstad
  • Patent number: 6937807
    Abstract: An optical fiber cable management panel includes at least one slideable drawer and structure within the drawer for cable management and/or connection to other devices. At least two tray inserts drop into the drawers to provide the appropriate management and connection devices. Each of the drop-in plates includes fastener structure to accommodate removable securement of the drop-in plates to the drawer. The drop-in plates accommodate selected fiber management components thereon. The fiber management components can include radius limiters, adapters, or LEDs. A method of providing fiber management components in a cable management panel includes operably mounting at least two drop-in trays in a drawer, each of the drop-in trays including a fiber management component.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: August 30, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: Michael J. Franklin, Jerome E. Maki, Trevor D. Smith
  • Patent number: 6935866
    Abstract: An adapter having a housing, a ground clip and an adapter subassembly all located in the housing. The adapter subassembly includes a proximal portion that can be coupled to a coaxial connector and a distal portion that can be coupled to a printed circuit board. A central conductor in the form of an elongated shaft that runs through the subassembly and has a ball contact end for contacting a conductor located on a printed circuit board and the elongated shaft is tapered in a region near the bal contact.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: August 30, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: James R. Kerekes, M'hamed Anis Khemakhem, Eric L. Lovaasen
  • Publication number: 20050185910
    Abstract: An optical fiber cable assembly comprising an optical fiber slidably enclosed within a hollow tubing, both the fiber and the tubing having corresponding first and second ends. The cable is terminated with the first and second ends of the tubing and the fiber constrained with respect to each other such that fiber and the tubing are approximately the same length when the cable is at a first temperature. The tubing is made of a material which contracts more than the optical fiber when the cable is exposed to temperatures below the first temperature, such that the fiber is longer than the tubing and excess fiber length is formed. An intermediate portion of the tubing permits the excess fiber length to accumulate without bending in a radius smaller than a minimum bend radius.
    Type: Application
    Filed: March 2, 2005
    Publication date: August 25, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventor: Steven Zimmel
  • Publication number: 20050186858
    Abstract: A DSX system arranged to receive a plurality of high-density chassis is disclosed. The chassis include back planes having rear access IN/OUT fields and rear access cross-connect fields. The rear access IN/OUT fields are electrically connected to termination structures and panels located in respective IN/OUT regions and cross-connect regions. The termination structures of the IN/OUT region includes first and second fanning strips located along edges of termination panels. A double-hinged cover provides access to the termination panels.
    Type: Application
    Filed: April 11, 2005
    Publication date: August 25, 2005
    Applicant: ADC Telecommunications, Inc.
    Inventors: Scott Baker, Harvey Chouanard
  • Patent number: 6934456
    Abstract: A cable trough cover assembly and method of assembly including a cover plate and a hinge piece. The cover plate includes a pivot member along at least one edge, and the hinge piece defines a pocket for releasably receiving the pivot member. The pocket and pivot member arrangement allow the cover plate to be rotated relative to a cable trough to which the hinge pieces may be mounted.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: August 23, 2005
    Assignee: ADC Telecommunications, Inc.
    Inventors: Matthew D. Ferris, Joel T. Fisher