Patents Assigned to ADC
  • Publication number: 20030206695
    Abstract: A fiber collimator device includes polarization controlling optics to simplify the manufacture of fiber collimators that use polarization maintaining fiber. In particular, the use of the polarization control optics in a fiber collimator reduces the need to align the polarization axis of the polarization maintaining fiber, thus reducing the time spent on fabricating the device. This is useful where the collimation device includes a polarization mode combiner.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Ronald E. Gerber, Shubhagat Gangopadhyay
  • Publication number: 20030206696
    Abstract: Generally, the present invention relates to a method for aligning collimator sub-assemblies, disposed along a longitudinal axis. The invention arises from a realization that prohibiting the two collimator sub-assemblies from being adjusted in the same rotational degree of freedom leads to faster and easier alignment. In particular, the method includes rotating only one of the first and second sub-assemblies in a first plane defined by the longitudinal axis and a first axis perpendicular to the longitudinal axis. In some aspects of the invention, one of the first and second sub-assemblies are rotated in a second plane defined by the longitudinal axis and a second axis perpendicular to the both the longitudinal axis and the first axis. The sub-assemblies may also be translated in a direction parallel to the first axis and/or in a direction parallel to the second axis.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Ronald E. Gerber, Timothy S. Gardner
  • Publication number: 20030206699
    Abstract: Two sub-assemblies in a fiber optic device are fitted to mounting faces of a central section. The mounting faces are typically flat and mutually orthogonal, thus permitting the adjustment of the two sub-assemblies in decoupled degrees of freedom. This results in a simpler adjustment procedure for aligning the two sub-assemblies. Furthermore, the mounting of the sub-assemblies using the orthogonal mounting faces permits the use of relatively thin layers of adhesive that reduce misalignment problems arising from mismatched thermal expansion when the temperature changes.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Thomas J. Schmitt, Jeffrey P. Treptau, Ronald E. Gerber, Timothy S. Gardner, Edward C. Gage, Kevin D. Batko
  • Publication number: 20030208729
    Abstract: A method and system for performing simultaneous tests and avoiding task collisions using a hardware description language includes designating a timeslot for one or more of the simultaneous tests, associating the designated timeslot with one or more of the tasks to be performed in a test, determining if the designated timeslot is available before executing the tasks associated with timeslots and executing the tasks when the designated timeslots become available.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventors: L. Grant Giddens, Ronald R. Munoz
  • Publication number: 20030206349
    Abstract: A compact, in-line polarization combiner uses a folded, reflective optical path from a first fiber to a second fiber. The combiner includes first and second fibers at one end of an in-line package, and a third fiber at the other end of the in-line package. A first polarization-dependent optical path is defined between the first and second fibers for light in a first polarization state. A second polarization-dependent path is defined between the first and third fibers for light in a second polarization state orthogonal to the first polarization state. A polarizer is disposed between the ends of the combiner and reflects light on the first path between the first and second fibers and transmits light on the second path between the first and third ports, A reflector is disposed on the first path to reflect light to the polarizer.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Edward C. Gage, Ronald E. Gerber
  • Patent number: 6643443
    Abstract: A cable storage cartridge and assembly for storing an excess length of cable. The cartridge includes a rectangular carriage frame and a spool rotatably disposed inside the carriage frame. The spool is comprised of a first spool member having a radius protection loop channel on its top surface and a second spool member. Together the first spool member and second spool member define a storage chamber. The storage chamber lies in a different plane than the loop channel of the first spool member. The first spool member defines transition openings for allowing the cable to pass from the loop channel to the storage chamber. Carriage frame includes detent and catch tabs for retaining the cartridge inside a cartridge housing.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: November 4, 2003
    Assignee: ADC Telecommunications, Inc.
    Inventors: John C. Holman, Trevor D. Smith, Thomas C. Tinucci
  • Patent number: 6643471
    Abstract: An optical communication system is provided. The optical communication system includes an optical fiber, an optical transmitter, and an optical receiver. The optical transmitter is coupled to the optical fiber. The optical transmitter is adapted to encode a pulse amplitude modulated optical signal based on at least two, independent input signals. The optical receiver is coupled to the optical fiber. The optical receiver is adapted to decode the pulse amplitude modulated optical signal to reproduce the at least two, independent input signals as output signals.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: November 4, 2003
    Assignee: ADC Telecommunications, Inc.
    Inventors: Aravanan Gurusami, Joseph F. Chiappetta
  • Publication number: 20030202655
    Abstract: A system for managing power from a power source for at least one line powered network element in an access network is provided. The system includes a power manager that establishes at least one power criterion for the at least one network element. Further, the system includes a power controller that is responsive to the power manager. The power controller and the power manager communicate to manage operation of the at least one network element based on the at least one power criterion.
    Type: Application
    Filed: April 29, 2002
    Publication date: October 30, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventors: Dieter H. Nattkemper, Melvin Richard Phillips, Kenneth L. Walker
  • Publication number: 20030202670
    Abstract: A device to audibly verify the activation of a solid state relay. The device includes an audio output device that is coupled to the solid state relay to produce a sound when the solid state relay is activated. The sound produced by the audio output devices emulates the sound of an electromechanical relay when switched.
    Type: Application
    Filed: March 27, 2002
    Publication date: October 30, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventor: Ronald R. Gerlach
  • Publication number: 20030202364
    Abstract: A pulse width modulation controller is coupled to a feedback voltage that is proportional to the power supply output voltage. The controller adjusts a current sense threshold in the controller in response to the feedback voltage. An offset voltage is generated for a predetermined time after the power-up of the power supply. A sum of the offset voltage and a primary current sense node voltage is applied to a current sense input of the controller. The controller generates a switch control signal in response to the sum voltage being less than the current sense threshold. The duty cycle of an output control switch is changed by the switch control signal thus adjusting the output voltage ramp.
    Type: Application
    Filed: April 30, 2002
    Publication date: October 30, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventors: Charles Weston Lomax, Christopher Tad Ammann
  • Publication number: 20030200749
    Abstract: A thermal microactuator is provided that can be deflected in multiple positions. The actuator has a hot arm and a cold arm coupled together at their distal ends suspended above a reference plane of a substrate. A potential difference is applied across the hot arm so that a current circulates through the hot arm but not the cold arm.
    Type: Application
    Filed: April 30, 2002
    Publication date: October 30, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Susan C. Bromley, Bradley J. Nelson, Karl Vollmers, Arunkumar Subramanian, Eniko Enikov, Kamal Deep Mothilal
  • Publication number: 20030204702
    Abstract: A method of operating a processing device is provided. The method includes defining an effective memory address space with a cached address space and a non-cached address space wherein the cached address space and the non-cached address space each translate to overlap a single physical memory space. Further, the method includes accessing a memory address of the physical memory space without accessing a cache memory system from the non-cached effective address space. The method also includes accessing a memory address of the physical memory space from the cached effective address space with the benefit of the cache memory system.
    Type: Application
    Filed: April 30, 2002
    Publication date: October 30, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventors: Charles Weston Lomax, Melvin Richard Phillips, Jefferson Logan Holt, James Xavier Torok
  • Publication number: 20030200748
    Abstract: An actuator having a hot-arm and a cold-arm wherein the hot-arm and cold-arm are vertically offset from one another. The hot-arm is heated to cause the actuator to move both vertically and horizontally. When used as a relay, an electrostatic force latches the actuator when the electrodes are brought in close proximity to one another.
    Type: Application
    Filed: April 30, 2002
    Publication date: October 30, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Susan C. Bromley, Bradley J. Nelson, Karl Vollmers, Arunkumar Subramanian, Eniko Enikov, Kamal Deep Mothilal
  • Patent number: 6639808
    Abstract: A card guide system is provided. The card guide system comprises a chassis having a top and a bottom frame portion. The top and bottom frame portions each include a plurality of card guide members disposed thereon. The card guide members of the top frame portion are a mirror image of the card guide members of the bottom frame portion. In addition, the plurality of card guide members are adapted to receive a circuit card and secure the circuit card using tension, wherein when the circuit is received by the card guide members the circuit card is bowed.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 28, 2003
    Assignee: ADC Telecommunications, Inc.
    Inventor: Philip G. Umberger
  • Patent number: 6637949
    Abstract: A method and apparatus are disclosed that permit multi-directional fiber optic connections to a device. The multi-directional aspect of the fiber optic connections permit the connections to be aligned closely with the direction of travel of the fiber optic cables that interface with the device. Closely aligning the fiber optic connections on the device with the fiber optic cables' direction of travel maximizes the bend radius of the fiber optic cable near the point of connection or eliminates the bend altogether and reduces the likelihood of a broken fiber or signal attenuation.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: October 28, 2003
    Assignee: ADC Telecommunications, Inc.
    Inventors: Vern Loch, Craig Bentz, Joseph Coffey
  • Patent number: 6637845
    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 guide includes an opening that at least partially aligns with slots on the adjacent surface of the inner housing. The circuit card includes a finger extending from a faceplate that facilitates insertion and removal of the circuit card relative to the chassis.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: October 28, 2003
    Assignee: ADC Telecommunications, Inc.
    Inventors: Robin Berg, Jr., Todd Husom, Derek Sayres
  • Patent number: 6639919
    Abstract: Methods for bit-level control of dynamic bandwidth allocation are adapted for use in multi-node channelized transport systems. A single status bit is used to indicate the desired allocation status of each transport channel for which dynamic allocation is permitted or desired. The status bit has a first logic level indicative of a desire to have a first allocation status, such as allocated for data traffic, and a second logic level indicative of a desire to have a second allocation status, such as allocated for voice traffic. The status bit may be repeated multiple times within a frame to mitigate the effects of transmission errors. The values of the status bit or bits can be maintained across node boundaries without regard to the framing mechanisms or multiplexing techniques used by the transport system, thus permitting dynamic bandwidth allocation beyond the local loop.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: October 28, 2003
    Assignee: ADC DSL Systems, Inc.
    Inventors: Robert S. Kroninger, Dieter H. Nattkemper, Paul Fitch, Larry Grant Giddens
  • Publication number: 20030197057
    Abstract: An electronic circuit card having a central processing unit and a port electrically connected to the central processing unit is provided. The port is electrically connectable to a monitor and control system via a backplane of a housing for containing the electronic circuit card and a panel located externally of the housing. The monitor and control system is located externally of the housing and the panel. The port is adapted to convey signals between the central processing unit and the monitor and control system for at least one of monitoring and altering the operation of one or more software programs of the central processing unit.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Applicant: ADC Telecommunications Israel Ltd.
    Inventors: Joseph Menashe, Van Nadav
  • Patent number: D481339
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: October 28, 2003
    Assignee: ADC Telecommunications, Inc.
    Inventors: Terry E. McClellan, Zakhary Bluband
  • Patent number: RE38311
    Abstract: A fiber distribution frame includes a fixture having a plurality of modules mounted side-by-side within said fixture with each of the modules being individually mounted in a line of travel. Each of the modules can be locked in any one of a plurality of discrete positions within the line of travel. Each of the modules contains a plurality of adapters for receiving and retaining fiber optic connectors. Further, the fixture may be tilted downwardly to provide access to the rear of the fixture.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: November 11, 2003
    Assignee: ADC Telecommunications, Inc.
    Inventor: Todd A. Wheeler