Patents Assigned to ADC Telecommunications
  • Patent number: 5984531
    Abstract: Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. Longitudinal guides of the connector are received cooperating with longitudinal guides of the adapter to direct the connector into the adapter in a prescribed alignment. A cam pin is carried on the adapter to engage a cam pin receiving slot on the cover to urge the cover to the open position as the connector is inserted into the adapter.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: November 16, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventor: Liang-Ju Lu
  • Patent number: 5986486
    Abstract: A phase lock loop circuit. The phase lock loop circuit includes first and second pass gates. The pass gates include signal inputs that receive first and second reference signals, respectively. The pass gates also have enable inputs. The phase lock loop also includes a loop filter that is coupled to the outputs of the first and second pass gates. A loop oscillator is coupled to the output of the loop filter. A strobe circuit is coupled to the output of the loop oscillator. The strobe circuit provides an input signal to the enable inputs of the first and second pass gates so as to sample the first and second reference signals. The loop filter uses the samples of the first and second reference signals to create a control signal that forces the loop oscillator to output a signal with a phase that is between the phases of the first and second reference signals.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: November 16, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventor: Richard Allen Nichols
  • Patent number: 5977835
    Abstract: The passband ripple of a filter arrangement, including an amplifier and a bandpass filter, is tuned to a desirable level at the expense of the output return loss of the filter arrangement. Thus, the output return loss is increased as a result of reducing the ripple. To reduce the output return loss to a desired level, a lossy network is coupled to the output of the filter. The output return loss is reduced by twice the insertion loss of the lossy network. The insertion loss of the lossy network can be compensated for by increasing the gain of the amplifier.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: November 2, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventor: Guanghua Huang
  • Patent number: 5978650
    Abstract: A transmission system (10). The transmission system communicates data to a number of subscribers (14a, 14b). The transmission system includes a transceiver (12) that has a number of highly directional antennas (28). A number of digital repeaters (16a, 16b, 16c) are disposed in a geographic region serviced by the transceiver. The repeaters include a sectorized antenna that communicates with subscribers in a number of sectors of the geographic region of the repeater. The repeater also includes an upstream demodulator/modulator circuit (19). The upstream demodulator/modulator circuit demodulates data from signals from subscribers that were modulated with a first modulation technique, and generates a re-modulated signal with the data using a second modulation technique.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: November 2, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Larry G. Fischer, William C. Hamer, Sheryl H. Phillips
  • Patent number: 5971625
    Abstract: A fiber optic connector has two ferrules contained within a single connector housing with the ferrules positioned in parallel, spaced-apart alignment. The connector includes a first mating fastener exposed on exterior sides of the connector housing. A fiber optic adapter has an open end to slidably receive the connector housing. The adapter includes two parallel sleeves contained within the adapter housing and aligned with the ferrules of the connector. The adapter includes a second mating fastener exposed to an interior of the adapter housing to releasably mate with the first mating fastener when the connector housing is in the full insert position.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: October 26, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventor: Liang-Ju Lu
  • Patent number: 5967852
    Abstract: A repairable transmission line connector is provided where the center conductor has a front removable portion, and a rear portion crimped to the center conductor of the transmission cable. An outer sleeve mounted to a first coaxial conductor of the cable includes a removable front portion, and a rear portion crimped to the first coaxial conductor of the cable. An insulator holds the front center conductor wherein the insulator is held by the rear outer sleeve and the front outer sleeve. The front and rear outer sleeves, and the front and rear center conductors form a connector assembly. In a triaxial connector the connector assembly is surrounded by an insulating sleeve disposed within front and rear connector bodies connected to the cable. By disconnecting the front and rear connector bodies (if present) and the front and rear outer sleeves, access to the front center conductor is permitted for replacement of the front center conductor. The front outer sleeve and the insulator can be replaced as desired.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: October 19, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Michael Jay Follingstad, Jeffrey Louis Peters
  • Patent number: 5964607
    Abstract: A switching coaxial jack module includes two center conductors contained within a housing. The center conductors include front and rear portions which are axially movable relative to one another between connect and disconnect positions. In the connect position, the front portions are electrically connected to the rear portions. In the disconnect position, the front portions are electrically disconnected from the rear portions. A switch mechanism is contained within the interior to electrically connect the rear portions when both of the front portions are in the disconnect position and to electrically disconnect the rear portions when at least one of the front portions is in the connect position.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: October 12, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Thomas R. Finke, John D. Schmidt, Ahmad Sajadi
  • Patent number: 5966648
    Abstract: An amplifier module for radio frequency signal circuits includes an electrically conductive housing. Two coax connectors are electrically linked to an amplifier circuit contained within the module. A separate transformer is external to the module. Both the module and the external transformer are mountable to a chassis frame. Other modules are usable in the system in addition to the amplifier module. The transformer can be wall mounted to the chassis frame, or the transformer can be internal to a module which also mounts to the chassis frame.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: October 12, 1999
    Assignee: ADC Telecommunications, Inc
    Inventors: Todd Charles Ortberg, Zakhary Bluband, Glen Backes
  • Patent number: 5963843
    Abstract: An amplifier switch controller is provided for use in a headend cable transmission system having first and second amplifiers and amplifier input and output paths connected to one of the first and second amplifiers, which becomes the currently activated amplifier. The amplifier switch controller comprises an input sampler for sampling a combined signal on the input signal path and measuring an input signal level. The amplifier switch controller also comprises an output sampler for sampling the amplified combined signal on the output signal path and measuring an output signal level. A program means receives the input and output signal levels and determines whether the currently activated amplifier is not functioning properly. If it is not functioning properly, the program means generates a control signal to a switch.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: October 5, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Eric K. Sit, John C. Keller, Jeffrey O. Brown, Reuben W. Meline, Leah E. Danzinger, Zakhary Bluband, Todd C. Ortberg
  • Patent number: 5955930
    Abstract: 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 inner connected with one another through a plurality of circuit paths. The components include directional couplers connected in series to combine branch circuits with each branch circuit having a separate attenuator.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: September 21, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Andrew Reino Anderson, Glen Brian Backes, Richard Thomas Demulling, Dominic Louwagie, Todd Charles Ortberg, Edward F. Sansone
  • Patent number: 5946440
    Abstract: An optical fiber cable management device includes a modular side wall construction, and a plurality of slideable and rotatable cable management trays disposed within the device. The trays can be configured for both termination and storage, storage only, and for supporting cable components. One or more slideable drawers are also provided within the device. The device provides cable termination, splice and storage of the optical fiber cables.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: August 31, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventor: Curtis Lee Puetz
  • Patent number: 5937131
    Abstract: 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: Grant
    Filed: November 17, 1997
    Date of Patent: August 10, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Timothy Jon Haataja, Thomas Walter Kampf
  • Patent number: 5923753
    Abstract: A cable trough is provided including a bottom portion and two upstanding sides extending from the bottom portion to define a cable pathway. The upstanding sides define an enlarged central portion of the cable trough, and the bottom portion including at least one exit trough portion. The exit trough portion can be centrally located, with a bypass pathway on either side. At least one separator wall is provided to separate the exit trough portion from each bypass pathway. A component flange is also provided extending from one of the upstanding sides. The cable trough can also include a cable storage pathway. Alternatively, two exit trough portions can be positioned on opposite sides of the cable trough adjacent each upstanding side, and on opposite sides of a central bypass pathway.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: July 13, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Timothy Jon Haataja, Thomas Walter Kampf, Wayne Albin Johnson, Gary F. Nault
  • Patent number: 5913701
    Abstract: A switching coax jack module (10) contains two removable jacks (14, 14'). The jack module (10) includes a sheet metal housing (12) with a front wall (22) and a rear wall (24). An interior wall structure (20) within the housing (12) defines two recesses (34, 34') within the housing (12) recessed from and open through the front wall (22). The interior wall structure (20) carries four sliding coax connectors (60a, 61a, 60a', 61a') with two of the four exposed within each of the recesses (34, 34'). Coax cables (60b, 61b, 60b', 61b') contained within the housing (12) connect each of the four sliding coax connectors (60a, 61a, 60a', 61a') with individual ones of coax connectors (60, 61, 60', 61') mounted on the rear wall (24) and exposed to an exterior of the housing (12). Two switching jacks (14, 14') containing switching components (125) are slidably received within the recesses (34, 34'). Sliding connectors (112, 113) mate with the housing sliding connectors (60a, 61a, 60a', 61a').
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: June 22, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Cynthia G. Olson, Dennis M. Burroughs
  • Patent number: 5913161
    Abstract: Apparatus and methods for the lawful intercept of mobile telecommunication are provided. The A Interface at a base station subsystem is bridged with a Y-cable, and a copy of the data on the telecommunications lines are forwarded to a switch. The out-of-band control information such as SS7 signalling information is forwarded to a processor which continuously monitors the mobile identification numbers and/or telephone numbers of called and calling parties and compares the numbers to a database of to-be-tapped numbers. Upon finding a match, the processor causes the switch to provide the copy of the channel on which the call is being carried to a listening device.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: June 15, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Esref Ozulkulu, Ahmet Ozalp, Curtis Hartmann
  • Patent number: 5909155
    Abstract: A splitter/combiner 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. Components on the circuit board include splitter/combiners for splitting a signal into a plurality of branch signals each having an individual attenuator component.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: June 1, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Andrew Reino Anderson, Glen Brian Backes, Richard Thomas Demulling, Dominic Louwagie, Todd Charles Ortberg, Edward F. Sansone
  • Patent number: 5903829
    Abstract: 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 inner connected with one another through a plurality of circuit paths. The circuit components include an equalizer removable through the forward face of the housing to equalize an RF attenuation across a broad band.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: May 11, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Andrew Reino Anderson, Glen Brian Backes, Richard Thomas Demulling, Dominic Louwagie, Todd Charles Ortberg, Edward F. Sansone
  • Patent number: 5885096
    Abstract: A switching coaxial jack includes first and second parallel aligned electrically conductive coaxial center conductors. The center conductors are divided into front and rear portions. The rear portions include movable springs to separate the rear portions from the front portions. A V-shaped switching spring connects the rear portions. Levers push the rear portions out of connection with the switching spring and into connection with the front portions upon insertion of plugs into forward ports of the jack.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: March 23, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventor: Bruce C. Ogren
  • Patent number: 5885112
    Abstract: A coax connector bay and drawer maintain cable routing along sides of vertical array of drawers. When in a closed position, the drawers have access opening on opposite sides of the drawers to permit cables to be routed along the sides of the drawers and into the access openings for coupling to coax couplers. The drawers are slidable to open positions to permit a technician to have access to an interior of the drawers.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: March 23, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Dominic Louwagie, Sastry V. Emani, Todd Allan Morgenstern, John Gregory Schannach
  • Patent number: 5883995
    Abstract: Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. Longitudinal guides of the connector are received cooperating with longitudinal guides of the adapter to direct the connector into the adapter in a prescribed alignment. A cam pin is carried on the adapter to engage a cam pin receiving slot on the cover to urge the cover to the open position as the connector is inserted into the adapter.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: March 16, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventor: Liang-Ju Lu