Patents Assigned to ADC
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Patent number: 6618469Abstract: Circuits for testing POTS service on a shared POTS/xDSL carrier include microfilters for selective coupling to the subscriber loop side of an xDSL filter associated with a subscriber line interface circuit. Such configurations facilitate testing of the POTS service using an insertion point that is between the xDSL filter and the subscriber loop in a manner that is transparent to subscribers.Type: GrantFiled: February 5, 2002Date of Patent: September 9, 2003Assignee: ADC DSL Systems, Inc.Inventors: Jie Dong Wang, Christopher S. Smith
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Patent number: 6616459Abstract: An electrical terminal is adapted for insertion into a through hole of a circuit board and includes a first section that receives an electrical contact. The first section includes first and second spring arms proximate to each other at a contact point and configured to exert a first spring force to retain the electrical contact. The electrical terminal also includes a second section adapted for insertion into the through hole of the circuit board. The second section includes first and second pin members proximate to each other and defining first and second slots configured to exert a second spring force to retain the electrical terminal in the through hole of the circuit board. The second spring force is exerted in a direction perpendicular to the first spring force.Type: GrantFiled: August 24, 2001Date of Patent: September 9, 2003Assignee: ADC Telecommunications, Inc.Inventor: Jeffrey J. Norris
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Publication number: 20030165316Abstract: A cable exit trough with pivoting cover. The cover having a cover plate and a pivot plate hingedly mounted thereto for easy access to the trough. The exit trough may define an insert aperture for receiving modular cable management inserts. The modular insert providing an additional cable management device such as a curved guidewall. The cable management device may alternatively be fixed to the cable exit trough. Removable snap-mounted flanges may also be included in the exit trough.Type: ApplicationFiled: February 6, 2003Publication date: September 4, 2003Applicant: ADC Telecommunications, Inc.Inventors: Wayne Johnson, Brian L. Johnson, Thomas W. Kampf, Alex Watts, Michael J. Wentworth
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Publication number: 20030165315Abstract: An optical fiber cable management panel is provided with slideable drawers and structure within the drawers for cable management and/or connection to other devices. Tray inserts drop into the drawers to provide the appropriate management and connection devices. A movable take-up mechanism manages the cable entering and exiting the drawers at side openings. Stackable pivoting storage trays on the tray insert include a detent arrangement for holding each tray in a pivoted access position. The tray inserts further include a front key, and a back tab mounting arrangement for mounting the tray inserts to the drawers, and side radius limiters including notches for extending over raised portions of the drawer. The take-up mechanism includes a U-shaped trough section and cable retention tabs. A control mechanism is provided for controlling movement of the take-up mechanism relative to the drawer.Type: ApplicationFiled: November 26, 2002Publication date: September 4, 2003Applicant: ADC Telecommunications, Inc.Inventors: Steven P. Trebesch, Thomas C. Tinucci, Joel B. Douglas, John C. Holman, Trevor D. Smith, Paul C. Lance
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Patent number: 6614668Abstract: 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: GrantFiled: January 10, 2002Date of Patent: September 2, 2003Assignee: ADC Telecommunications, Inc.Inventors: Joseph Coffey, Delfino Hernandez
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Patent number: 6614665Abstract: A cable management bracket for a telecommunications rack. The bracket includes an elongated member having a length sized to extend across a width of the rack. A plurality of fingers project outwardly from the elongated member. The fingers are spaced apart along the length of the elongated member. Gaps sized to receive telecommunications cables are positioned between the fingers. Bend radius limiters are preferably connected to the fingers to prevent cables passing through the gaps from being bent beyond predetermined bend radius requirements.Type: GrantFiled: April 16, 2001Date of Patent: September 2, 2003Assignee: ADC Telecommunications, Inc.Inventors: Amy J. Witty, Todd Michael Bade
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Patent number: 6612515Abstract: A ribbon cable storage spool, tray and method of use. The spool comprising a center post and a plurality of radially extending top and bottom fins. The spool may also comprise a guide wall, a ribbon retention tab, a channel wall defining a channel and a ledge, and an oblong shape. The tray comprising a bottom plate and a sidewall which act together to define a spool chamber for receiving the spool. The bottom plate may also define holes such that the bottom fins of the spool are coplanar with the bottom plate when the spool is placed in the tray. The bottom plate may also include a column to be received by the channel of the spool. The channel and column may include a tongue and groove arrangement for preventing rotation of the spool relative to the tray. The column may also include a flexible clip for retaining the spool in the tray.Type: GrantFiled: August 28, 2000Date of Patent: September 2, 2003Assignee: ADC Telecommunications, Inc.Inventors: Thomas C. Tinucci, John C. Holman, Trevor D. Smith
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Publication number: 20030162516Abstract: A wireless distribution system includes a number of remote units distributed in a coverage area to receive wireless signals and to provide the signals through the distribution system to input ports of a node where the signals are combined, a number of input power monitors operatively connected to one or more of the input ports to determine power levels of signals received at the input ports, variable gain controllers to control signals received at some or all of the input ports, a node to combine a plurality of signals from the plurality of input ports, and a controller to provide control signals to control one or more of the variable gain controllers.Type: ApplicationFiled: February 25, 2002Publication date: August 28, 2003Applicant: ADC Telecommunications, Inc.Inventor: Jeff Solum
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Publication number: 20030161019Abstract: A fiber optic isolator device is used by fiber optic systems operating at more than one wavelength. The device may be inserted anywhere within the fiber network. The fiber optic device permits the separation of the wavelengths so that an optical isolator module can isolate a first wavelength without significantly affecting the second wavelength. This device is useful isolating a communications signal at 1.55 &mgr;m while avoiding significant losses for an optical time domain reflectometry signal, for example at 1.3 &mgr;m.Type: ApplicationFiled: January 14, 2003Publication date: August 28, 2003Applicant: ADC TelecommunicationsInventors: B. Barry Zhang, Liang-Ju Lu
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Publication number: 20030161342Abstract: An apparatus and method are detailed that allows for improved detection of communication devices and/or doublers in an associated physical communication links, in particular on HDSL communication links. The improved device apparatus and method additionally allows for the communication device to identify when all devices on a communication link have been detected and prevent premature termination of a discovery process. The improved device apparatus and method also allows the avoidance of improper detection of communication devices or doublers due to corrupted discovery response messages.Type: ApplicationFiled: February 28, 2002Publication date: August 28, 2003Applicant: ADC DSL Systems, Inc.Inventor: Raymond Diaz
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Patent number: 6609684Abstract: An adjustable cable management trough member and assembly. The assembly including first and second trough members having sidewalls extending from a base to define a U-shaped trough for receiving at least one telecommunications cable. The first trough member having a male end which is received by a female end of the second trough member. The trough members include slide posts and retention slots which engage each other to allow the trough members to be angled relative to each other in a first direction. The trough members also include a guide member and a guide slot which engage each other to allow the trough members to be angled relative to each other in a second direction. The first and second trough members may be identical.Type: GrantFiled: July 20, 2001Date of Patent: August 26, 2003Assignee: ADC Telecommunications, Inc.Inventors: John T. Van Scoy, Alex Watts, Wayne Giesen
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Patent number: 6611526Abstract: A meshed backplane has dedicated pairs of connections for high-speed serial connection in each direction between each of multiple application modules and each other application module. A management/control bus is provided for out-of-band signaling. The mesh of serial differential pairs may be used for management/control bus signals when necessary. A time division multiplexing fabric is also provided for telephony applications. A star interconnect region is provided for distribution of signals from redundant clocks.Type: GrantFiled: May 8, 2000Date of Patent: August 26, 2003Assignee: ADC Broadband Access Systems, Inc.Inventors: Kumar Chinnaswamy, Paul H. Dormitzer
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Patent number: 6608764Abstract: A telecommunications module with a circuit board including pairs of connectors mounting on both sides of the circuit board held within a housing by structure that holds the circuit board offset from the front and rear of the module and connectors accessible openings in the rear wall of the module. A telecommunications patch panel including one or more modules mounted to the rear of a faceplate, each module with a circuit board including pairs of electrically linked connectors mounting on both sides of the circuit board held within the module by structure that holds the circuit board offset from the front and rear of the module with connectors accessible through a rear wall of the module and through the faceplate. A method of assembling a telecommunications module and a method of assembling a telecommunications patch panel including one or more modules attached to the rear of a faceplate.Type: GrantFiled: November 16, 2001Date of Patent: August 19, 2003Assignee: ADC Telecommunications, Inc.Inventors: Gordon P. Clark, Bradley Scott Kessler, Loren J. Mattson
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Patent number: 6608835Abstract: A multicarrier transmitting modem is described. The modem includes means for receiving strings of digital data each having one of a set of different possible values, means for mapping the strings into symbols each having the same fixed amount of phase of predetermined different waveforms corresponding to the different possible values in the set, means for modulating the fixed amount of phase plus an excess amount of phase of the predetermine waveforms onto multiple orthogonal carriers in response to the symbols, and means for transmitting the modulated carriers to a distribution network.Type: GrantFiled: January 11, 2002Date of Patent: August 19, 2003Assignee: ADC Telecommunications, Inc.Inventors: Michael J. Geile, Harold A. Roberts, Michael J. Fort, Jeff Solum
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Publication number: 20030151905Abstract: A substrate having a conductive plane and a via passing through the conductive plane is provided. The conductive plane contacts the via to electrically interconnect the via and the conductive plane. A gap in the conductive plane separates a surface of the via from the conductive plane to provide an uninterrupted path for electrical current flowing substantially on the surface of the via.Type: ApplicationFiled: February 11, 2002Publication date: August 14, 2003Applicant: ADC DSL Systems, Inc.Inventor: Gary Gottlieb
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Publication number: 20030151445Abstract: A circuit for controlling inrush current to a load is provided. The circuit includes a variable impedance device having a control input. The variable impedance device is coupled between a power supply interface and a load interface. The circuit also includes a control circuit coupled to the control input of the variable impedance device and also coupled to the load interface. The control circuit is adapted to provide a signal at the control input of the variable impedance device which results in a linear increase in applied voltage to the load when the circuit is coupled to an input power source. A resistor is coupled between the first and second terminals of the power supply interface to provide a current discharge path for the control circuit when the circuit is disconnected from the power supply.Type: ApplicationFiled: February 14, 2002Publication date: August 14, 2003Applicant: ADC DSL Systems, Inc.Inventor: George Bertran Dodson
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Patent number: 6606351Abstract: A method for reducing ingress in orthogonal carriers is described. The method includes receiving a plurality of orthogonal carriers in an upstream frequency bandwidth and polyphase filtering the plurality of orthogonal carriers into a first and second plurality of carrier bands.Type: GrantFiled: September 15, 1999Date of Patent: August 12, 2003Assignee: ADC Telecommunications, Inc.Inventors: Mark J. Dapper, Michael J. Geile
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Publication number: 20030147507Abstract: Circuits for testing POTS service on a shared POTS/xDSL carrier include microfilters for selective coupling to the subscriber loop side of an xDSL filter associated with a subscriber line interface circuit. Such configurations facilitate testing of the POTS service using an insertion point that is between the xDSL filter and the subscriber loop in a manner that is transparent to subscribers.Type: ApplicationFiled: February 5, 2002Publication date: August 7, 2003Applicant: ADC DSL Systems, Inc.Inventors: Jie Dong Wang, Christopher S. Smith
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Patent number: 6603822Abstract: A method of communicating errors to a head end of a telecommunications system is described. The method inclues monitoring a downstream transmission channel at a service unit for transmission errors, generating a signal at the service unit that indicates errors in the downstream transmission and transmitting the signal to the head end on an associated upstream communication channels.Type: GrantFiled: September 15, 1999Date of Patent: August 5, 2003Assignee: ADC Telecommunications, Inc.Inventors: Jeffrey Brede, Steven P. Buska
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Patent number: 6603073Abstract: A cable management assembly and method of assembly. The trough assembly includes first and second trough members each having first and second upstanding sidewalls extending from a base defining a generally U-shaped trough which defines first and second cable pathways respectively for receiving at least one telecommunications cable. A first end of the first trough member and a second end of the second trough member define a snap-together mating arrangement which couples through longitudinal sliding movement the first trough member to the second trough member so that the first cable pathway communicates with the second cable pathway.Type: GrantFiled: September 12, 2001Date of Patent: August 5, 2003Assignee: ADC Telecommunications, Inc.Inventor: Matthew D. Ferris