Patents Assigned to ADC Telecommunications
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Patent number: 6657570Abstract: An analog to digital conversion circuit is provided. The analog to digital (A/D) conversion circuit includes an input adapted to receive an analog signal. The A/D conversion circuit further includes a variable attenuator that is coupled to the input and that has a feedback control input. The A/D conversion circuit further includes a converter that is responsive to the variable attenuator and that converts analog input signals to digital output signals. A feedback loop is also provided. The feedback loop is responsive to an overflow indicator of the converter. The feedback loop is adapted to produce a feedback signal based on the overflow indicator and is adapted to provide the feedback signal to the feedback control input of the variable attenuator so as to maintain the peak level of the input to the converter substantially near an acceptable peak input level for the converter.Type: GrantFiled: June 22, 2000Date of Patent: December 2, 2003Assignee: ADC Telecommunications, Inc.Inventor: Joseph F. Chiappetta
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Patent number: 6651326Abstract: A collar is provided that has a sleeve having a tapered axial bore that defines a tapered surface interiorly of the sleeve. The tapered axial bore is adapted to receive a receptacle such that the tapered surface bears against the receptacle. Moreover, the collar has a resilient device that engages the sleeve. The resilient device, the tapered axial bore of the sleeve, and the receptacle receive a connector. Axial displacement of the connector relative to the sleeve and the receptacle compresses the resilient device such that the resilient device exerts an increasing axial force on the sleeve. The increasing axial force displaces the sleeve axially relative to the receptacle causing the tapered surface to exert a radial force on the receptacle.Type: GrantFiled: July 26, 2001Date of Patent: November 25, 2003Assignee: ADC Telecommunications, Inc.Inventor: Michael J. Wayman
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Patent number: 6650885Abstract: A module for radio frequency signal circuits includes an electrically conductive housing. Coax connectors are secured to the rear face of the housing. A circuit board is contained within the interior spaced between sidewalls of the housing. A ground side of the circuit board includes a layer of electrically conductive material which is electrically connected to the housing. Coax cables extend within the interior of the housing from the coax connectors and between the ground side of the circuit board and an opposing sidewall. An opposite side of the circuit board contains circuit components interconnected with one another through a plurality of circuit paths.Type: GrantFiled: June 12, 2001Date of Patent: November 18, 2003Assignee: ADC Telecommunications, Inc.Inventors: Andrew Reino Anderson, Glen Brian Backes, Richard Thomas Demulling, Dominic Louwagie, Todd Charles Ortberg, Edward F. Sansone
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Publication number: 20030211777Abstract: The present invention relates to a center conductor insulator with a tapered entry for use with a coaxial cable transmission line connector that provides guiding and centering of a center conductor pin within the connector. The present invention further relates to a front sleeve assembly for use with a coaxial cable transmission line connector which incorporates a center conductor insulator with a tapered entry to guide and center a center conductor pin within the connector. The present invention also relates to a compression ring assembly for mounting a connector to a cable, the assembly having a collet engaging a tapered rear seal to compress the collet about the cable. The present invention further relates to a method of mounting a connector to a cable with a compression ring assembly incorporating a collet and tapered rear seal.Type: ApplicationFiled: June 3, 2003Publication date: November 13, 2003Applicant: ADC Telecommunications, Inc.Inventors: M?apos;hamed Anis Khemakhem, Vicki Reinheardt, James R. Kerekes
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Publication number: 20030206696Abstract: 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: ApplicationFiled: May 1, 2002Publication date: November 6, 2003Applicant: ADC Telecommunications, Inc.Inventors: Ronald E. Gerber, Timothy S. Gardner
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Publication number: 20030206695Abstract: 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: ApplicationFiled: May 1, 2002Publication date: November 6, 2003Applicant: ADC Telecommunications, Inc.Inventors: Ronald E. Gerber, Shubhagat Gangopadhyay
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Publication number: 20030206349Abstract: 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: ApplicationFiled: May 1, 2002Publication date: November 6, 2003Applicant: ADC Telecommunications, Inc.Inventors: Edward C. Gage, Ronald E. Gerber
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Publication number: 20030206699Abstract: 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: ApplicationFiled: May 1, 2002Publication date: November 6, 2003Applicant: ADC Telecommunications, Inc.Inventors: Thomas J. Schmitt, Jeffrey P. Treptau, Ronald E. Gerber, Timothy S. Gardner, Edward C. Gage, Kevin D. Batko
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Patent number: 6643443Abstract: 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: GrantFiled: March 5, 2002Date of Patent: November 4, 2003Assignee: ADC Telecommunications, Inc.Inventors: John C. Holman, Trevor D. Smith, Thomas C. Tinucci
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Patent number: 6643471Abstract: 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: GrantFiled: April 2, 2001Date of Patent: November 4, 2003Assignee: ADC Telecommunications, Inc.Inventors: Aravanan Gurusami, Joseph F. Chiappetta
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Publication number: 20030200749Abstract: 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: ApplicationFiled: April 30, 2002Publication date: October 30, 2003Applicant: ADC Telecommunications, Inc.Inventors: Susan C. Bromley, Bradley J. Nelson, Karl Vollmers, Arunkumar Subramanian, Eniko Enikov, Kamal Deep Mothilal
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Publication number: 20030200748Abstract: 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: ApplicationFiled: April 30, 2002Publication date: October 30, 2003Applicant: ADC Telecommunications, Inc.Inventors: Susan C. Bromley, Bradley J. Nelson, Karl Vollmers, Arunkumar Subramanian, Eniko Enikov, Kamal Deep Mothilal
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Patent number: 6637949Abstract: 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: GrantFiled: June 1, 2001Date of Patent: October 28, 2003Assignee: ADC Telecommunications, Inc.Inventors: Vern Loch, Craig Bentz, Joseph Coffey
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Patent number: 6639808Abstract: 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: GrantFiled: November 28, 2000Date of Patent: October 28, 2003Assignee: ADC Telecommunications, Inc.Inventor: Philip G. Umberger
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Patent number: 6637845Abstract: 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: GrantFiled: February 28, 2001Date of Patent: October 28, 2003Assignee: ADC Telecommunications, Inc.Inventors: Robin Berg, Jr., Todd Husom, Derek Sayres
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Publication number: 20030197057Abstract: 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: ApplicationFiled: April 23, 2002Publication date: October 23, 2003Applicant: ADC Telecommunications Israel Ltd.Inventors: Joseph Menashe, Van Nadav
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Publication number: 20030197998Abstract: A power supply is filtered while the amount of in-rush current required by the capacitive charging of the filter is limited. A resistor may be placed in parallel with a relay where the parallel combination is in series with the filtering capacitor. The relay is open upon applying power to the filter and remains open while the capacitor at least partially charges to cause charging current to pass through the resistor and thereby limit in-rush current. The relay is closed thereafter to provide a short circuit around the resistor and thereby unrestrict filtering by the capacitor. Alternatively, a common mode choke is disposed between a capacitor across input nodes and a capacitor across output nodes, whereby the size of the capacitors may be reduced to limit the in-rush current due to the common mode choke. The power supply filter may be included as part of a power distribution panel.Type: ApplicationFiled: May 20, 2003Publication date: October 23, 2003Applicant: ADC Telecommunications, Inc.Inventors: Joseph Coffey, Delfino Hernandez
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Publication number: 20030198453Abstract: A cable exit trough is mountable to a lateral trough section either during initial assembly of the cable routing system, or at a later date. The exit trough includes a bracket portion mountable to the top edge of one of the sides of the lateral trough section. Two lead-ins are provided to lead the cable in an upward direction from the lateral trough section to the exit trough. The exit trough includes an exit trough portion extending from the bracket portion upwardly away from the lateral trough section. The exit trough portion includes a convexly curved bottom trough surface, and two convexly curved upstanding sides. The exit trough portion and the lead-ins define a cable pathway from the lateral trough section to an exit point of the exit trough portion which can either lead downwardly relative to the lateral trough section, or horizontally.Type: ApplicationFiled: June 9, 2003Publication date: October 23, 2003Applicant: ADC Telecommunications, Inc.Inventors: Timothy Jon Haataja, Thomas Walter Kampf
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Patent number: D481339Type: GrantFiled: December 3, 2002Date of Patent: October 28, 2003Assignee: ADC Telecommunications, Inc.Inventors: Terry E. McClellan, Zakhary Bluband
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Patent number: RE38311Abstract: 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: GrantFiled: March 5, 1998Date of Patent: November 11, 2003Assignee: ADC Telecommunications, Inc.Inventor: Todd A. Wheeler