Patents Assigned to ADC
  • Publication number: 20070245394
    Abstract: A training premable in multipoint-to-point communication using orthogonal frequency division multiplexing (OFDM) is provided. In one embodiment, a system comprises a host unit and a plurality of remote units using a multiple access scheme to communicate at the same time with the host unit using OFDM. The host unit sends an adjustment signal to at least one of the remote units instructing the at least one remote unit to adjust the timing of transmissions from the remote unit to improve orthogonality of an OFDM waveform received at the host unit. The host unit allocates orthogonal tones within the OFDM waveform to the plurality of remote units. At least one remote unit transmits a training sequence in at least one upstream OFDM signal to the host unit and the host unit uses the training sequence to assist in demodulating the upstream OFDM signal of the at least one remote unit.
    Type: Application
    Filed: June 25, 2007
    Publication date: October 18, 2007
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventor: Michael Geile
  • Publication number: 20070242597
    Abstract: Systems and methods for scanning by remotes in multipoint-to-point communication using orthogonal frequency division multiplexing are provided. In one embodiment, a system comprises a host unit; and a plurality of remote units using a multiple access scheme to communicate at the same time with the host unit using orthogonal frequency division multiplexing (OFDM); wherein at least one remote unit scans a band of frequencies for a downstream signal from the host unit; wherein the host unit sends an adjustment signal to the at least one remote unit instructing the at least one remote unit to adjust the timing of transmissions from the remote unit to improve orthogonality of an OFDM waveform received at the host unit; and wherein the host unit allocates orthogonal tones within the OFDM waveform to the plurality of remote units.
    Type: Application
    Filed: July 5, 2007
    Publication date: October 18, 2007
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventors: Michael Geile, Jeffrey Brede, Harold Roberts, Michael Fort
  • Publication number: 20070243899
    Abstract: Systems and methods for the analog transport of RF voice/data communications are provided. In one embodiment, a method for transporting analog multi-band RF signals is provided. The method comprises receiving a first multi-band RF signal from a first communications medium, the first multi-band RF signal including a first RF frequency band and one or more additional RF frequency bands; separating the first RF frequency band from the multi-band RF signal; varying a power level of the first RF frequency band; recombining the first RF frequency band with the one or more additional RF frequency bands into a second multi-band RF signal; and transmitting the second multi-band RF signal on a second communications medium.
    Type: Application
    Filed: April 12, 2006
    Publication date: October 18, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventors: Michael Hermel, Larry Fischer, William Mitchell
  • Publication number: 20070242689
    Abstract: A system and method for remotely restoring inoperative data communications are disclosed, which causes the transmitter to transmit over the physical link a predetermined sequence of signals that can be detected at the receiver. Responsive to the detected sequence of signals, the receiver can initiate an internal reset command to restore the communication of data. As one example, a system for remotely restoring inoperative data communications is disclosed, which includes a first laser transceiver unit located in a head end, and a second laser transceiver unit remotely located in a node end, and an optical transmission medium connected between the head end and the node end. For this example, the head end is the host end of a distributed base station system for a cellular radiotelephone network, the node end includes the cellular transmitter/receiver (remote radio head) and antenna components, and the optical transmission medium is a fiber optic cable.
    Type: Application
    Filed: April 14, 2006
    Publication date: October 18, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventors: Dean Zavadsky, Jeff Millar, Paul Schatz, Steve Stuart
  • Patent number: 7281948
    Abstract: 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: Grant
    Filed: October 17, 2006
    Date of Patent: October 16, 2007
    Assignee: ADC Telecommunications, Inc.
    Inventors: M'Hamed Anis Khemakhem, Vicki Reinheardt, James R. Kerekes
  • Publication number: 20070237182
    Abstract: Systems for contention-based access in multipoint-to-point communication using orthogonal frequency division multiplexing are provided. In one embodiment, a system comprises a host unit; a plurality of remote units using a multiple access scheme to communicate at the same time with the host unit using orthogonal frequency division multiplexing (OFDM); wherein the host unit sends an adjustment signal to at least one of the remote units instructing the at least one remote unit to adjust the timing of transmissions from the remote unit to improve orthogonality of an OFDM waveform received at the host unit; wherein the host unit allocates orthogonal tones within the OFDM waveform to the plurality of remote units; wherein remote unit access to at least one orthogonal tone within the OFDM waveform is contention based.
    Type: Application
    Filed: June 26, 2007
    Publication date: October 11, 2007
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventors: Michael Geile, Harold Roberts
  • Publication number: 20070238457
    Abstract: A system and method for enhancing the performance of wideband digital RF transport systems is disclosed, which enables the transport of different bandwidth segments on a plurality of wideband channels by selecting an optimal clock sample rate for each bandwidth segment to be transported. Thus, the bandwidth segments are proportionally allocated so that an optimum amount of bandwidth can be transported at the serial bit rate. As one example, a system for enhancing the performance of a wideband digital RF transport system is disclosed, which includes a transmit unit, a receive unit, and an optical transmission medium connected between the transmit unit and the receive unit. The transmit unit includes a plurality of wideband RF analog signal inputs coupled to a plurality of analog-to-digital, digital down-converter (A/D DDC) devices. Notably, the sample rate of each A/D DDC device is determined by a respective sample clock.
    Type: Application
    Filed: April 6, 2006
    Publication date: October 11, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventor: Philip Wala
  • Publication number: 20070237066
    Abstract: Systems for contention-based bandwidth requests in orthogonal frequency division multiplexing (OFDM) systems are provided. In one embodiment, a bi-directional communication system comprises: a multipoint-to-point host unit; and a plurality of remote units communicatively coupled to the multipoint-to-point host unit through an OFDM waveform. The multipoint-to-point host unit is configured to receive the OFDM waveform, the OFDM comprising a plurality of tones transmitted by the plurality of remote units. A first remote unit of the plurality of remote units is configured to transmit a request for bandwidth to the host unit on a tone of the plurality of tones, wherein access to the tone is contention-based. The multipoint-to-point host unit is configured to direct a modem to transmit information on at least one tone of the OFDM waveform based on whether the modem successfully receives the request for bandwidth from the first remote unit of the plurality of remote units.
    Type: Application
    Filed: June 26, 2007
    Publication date: October 11, 2007
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventors: Michael Geile, Harold Roberts
  • Publication number: 20070238360
    Abstract: A triaxial connector assembly including a media converter that is used to terminate a fiber optic/electrical hybrid cable is disclosed. The triaxial connector assembly includes a connector with a housing defining a first end and a second end, the first end of the housing defining a triaxial interface adapted to mate with a triaxial connector, the second end of the housing defining a cable termination end. The connector also includes the media converter positioned within the housing, the media converter configured to convert fiber signals and electrical signals carried by a hybrid fiber optic/electrical cable to a coaxial signal carried forward by the triaxial interface. A camera system using the connector and a method of terminating a hybrid cable to a triaxial connector are also disclosed.
    Type: Application
    Filed: December 20, 2006
    Publication date: October 11, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventors: M'Hamed Khemakhem, Joseph Coffey, Jeffery Peters, Herve Fauvelet
  • Publication number: 20070237070
    Abstract: Methods for contention-based bandwidth requests in orthogonal frequency division multiplexing systems are provided. In one embodiment, a method for an orthogonal frequency division multiplexing multipoint-to-point communications system comprises: establishing communication between a first remote unit of a plurality of remote units and a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; transmitting up to a plurality of tones from the first remote unit, the up to a plurality of tones modulated with upstream information using orthogonal frequency division multiplexing; determining when bandwidth is needed for an upstream transmission to the host unit; and transmitting a request for bandwidth to the host unit on a first tone of the plurality of tones, wherein access to the first tone is contention-based.
    Type: Application
    Filed: June 26, 2007
    Publication date: October 11, 2007
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventors: Michael Geile, Harold Roberts
  • Patent number: 7280479
    Abstract: A cable modem termination system includes a data over cable service interface specification (DOCSIS) subsystem that manages a flow associated with a gate and a gate manager (GM) that manages a state of the gate. When the flow is admitted by the DOCSIS subsystem, the DOCSIS subsystem signals to the GM to transition the state of the gate to a reserved state. The GM transitions the state of the gate to the reserved state when the DOCSIS subsystem signals to the GM to transition the state of the gate to the reserved state. When the flow is activated by the DOCSIS subsystem, the DOCSIS subsystem signals to the GM to transition the state of the gate to a committed state. The GM transitions the state of the gate to the committed state when the DOCSIS subsystem signals to the GM to transition the state of the gate to the committed state.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: October 9, 2007
    Assignee: ADC Broadband Access Systems, Inc.
    Inventors: Shantnu Sharma, Vikrant Karan, Michael Mercurio, Daniel Byron
  • Patent number: 7280725
    Abstract: A furcation tube including a central channel for receiving a fiber optic drop cable in a first end and an upjacket in a second end to transition an optical fiber within the drop cable into the upjacket for termination. A method of transitioning an optical fiber from a drop cable to a smaller upjacket.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: October 9, 2007
    Assignee: ADC Telecommunications, Inc.
    Inventors: Troy Brown, Steven C. Zimmel, Justin R. Horton
  • Patent number: 7280564
    Abstract: A bidirectional communication system is provided. In one embodiment, a system comprises a host unit and a plurality of remote units using a multiple access scheme to communicate at the same time with the host unit using orthogonal frequency division multiplexing (OFDM). The host unit repeatedly performs an analysis of a transmission characteristic of at least one upstream signal from at least one remote unit. The at least one remote unit makes adjustments to the transmission characteristic based on the analyses performed by the host unit to assist the host unit in demodulating a plurality of upstream signals from the plurality of remote units.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: October 9, 2007
    Assignee: ADC Telecommunications, Inc.
    Inventors: Michael J. Geile, Jeffrey Brede
  • Publication number: 20070230880
    Abstract: The present disclosure relates to a telecommunications cable having a jacket including a feature for allowing post-extrusion insertion of an optical fiber or other signal-transmitting member. The present disclosure also relates to a method for making a telecommunications cable having a jacket including a feature for allowing post-extrusion insertion of an optical fiber or other signal-transmitting member.
    Type: Application
    Filed: June 4, 2007
    Publication date: October 4, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventor: Wayne Kachmar
  • Publication number: 20070230888
    Abstract: A cable exit trough defining an insert aperture for receiving a 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. The exit trough may also include an exit cover having a cover plate and a pivot plate hingedly mounted thereto for easy access to the trough.
    Type: Application
    Filed: November 29, 2006
    Publication date: October 4, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventors: Michael Wentworth, Brian Johnson, Wayne Johnson, Thomas Kampf, Alex Watts
  • Publication number: 20070230325
    Abstract: Methods and systems for training sequences are provided. In one embodiment, a bi-directional communication system comprises: a multipoint-to-point host unit; and a plurality of remote units communicatively coupled to the multipoint-to-point host unit through an orthogonal frequency division multiplexing waveform. The multipoint-to-point host unit is configured to receive the orthogonal frequency division multiplexing waveform, the orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by the plurality of remote units. The plurality of remote units each transmit a training pattern to the host unit on at least one of the plurality of tones; and the multipoint-to-point host unit is configured to adjust demodulation of upstream information from the plurality of tones based on the training pattern.
    Type: Application
    Filed: June 25, 2007
    Publication date: October 4, 2007
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventor: Michael Geile
  • Publication number: 20070230891
    Abstract: A telecommunications optical fiber distribution system is disclosed. The system comprises a support structure with an upper end, a lower end, a front side, a rear side, and a longitudinal axis. An input cable carrying an input signal and an output cable carrying an output signal is received into the system through the lower end. A plurality of signal splitters located at the upper end of the support structure split the input signal into a plurality of secondary signals. The system includes a plurality of adapters arranged radially about the longitudinal axis along the front side of the support structure. The adapters connect the secondary signals to the output signal. A cable management structure having portions located both along the front side between the plurality of adapters and the splitters and adjacent the back side manage and direct cables going from the input opening to the splitters and from the splitters to the adapters.
    Type: Application
    Filed: February 5, 2007
    Publication date: October 4, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventors: Michael Barth, Soutsada Vongseng, Matthew Ferris
  • Publication number: 20070232105
    Abstract: A coaxial switching jack with a pair of coaxial assemblies mounted within a housing having a pair of front openings. The coaxial assemblies each include a center conductor and a shell conductor. The center conductors are connected by a first spring and the shell conductors are connected by a second spring. Insertion of a coaxial cable connector within one of the front openings deflects the springs from the corresponding coaxial assembly and disconnects the center and shell conductors of the two assemblies. The jack may also be configured to provide an electrical connection between the center and shell conductors of the second coaxial assembly if a coaxial cable connector is inserted within the first coaxial assembly. The connection between the center and shell conductors of the second coaxial assembly may allow for selection of a desired electrical impedance.
    Type: Application
    Filed: January 10, 2007
    Publication date: October 4, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventors: M'hamed Khemakhem, Jeffrey Peters, Duane Sand
  • Publication number: 20070230892
    Abstract: 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: Application
    Filed: November 30, 2006
    Publication date: October 4, 2007
    Applicant: ADC Telecommunications, Inc.
    Inventors: Wayne Johnson, Brian Johnson, Thomas Kampf, Alex Watts, Michael Wentworth
  • Patent number: D553105
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: October 16, 2007
    Assignee: ADC DSL Systems, Inc.
    Inventors: Deborah H. Heller, Suleyman O. Sumer, James X. Torok, Thomas DiVittorio