Using Crossbar Or Crosspoint Switching Patents (Class 379/335)
  • Patent number: 8483369
    Abstract: An apparatus comprises at least one vectoring engine and a cross-connect coupled to the vectoring engine. The cross-connect is to couple with each of a plurality of customer premises equipment (CPE) devices via a respective DSL loop. An interface is to receive instructions for the cross-connect to couple the vectoring engine to a nonoverlapping subset of the CPE devices via the respective DSL loops. The interface is further to receive instructions for the vectoring engine to apply vectoring to the DSL loop via which to couple one of the CPE devices to the cross-connect.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: July 9, 2013
    Assignee: Adaptive Spectrum and Signal Alignment, Inc.
    Inventors: John M. Cioffi, Wonjong Rhee, George Ginis, Mark H. Brady, Peter J. Silverman
  • Patent number: 8385535
    Abstract: A method and system for automating cross-connects for a telecommunication system comprising a network of communication lines for connecting subscriber locations to a central office exchange 112. The communication lines extend to the subscriber locations from a main distribution frame (MDF) (320) in which a plurality of standard termination blocks are housed in the MDF for terminating the lines from to the subscriber side and lines from the exchange side, which are cross-connected in the prior art with jumper wires. In an embodiment of the invention, the cross-connects are mounted on modular cross-connect boards having mechanical switching means that are inserted into or connected to the termination blocks. Automation is achieved by selectively controlling the connection state of the cross-connects via a computer terminal (350,352) located remotely from the MDF. The system is scalable to the growth in subscriber lines within the MDF by installing additional cross-connect boards.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: February 26, 2013
    Inventors: Jan Ulander, Johan Öberg
  • Patent number: 8374120
    Abstract: A base station (BS) apparatus in a broadband wireless communication system is provided. The base station apparatus includes at least one function board for processing a baseband digital signal; at least one processor board for controlling the at least one function board; and at least one switch for routing a signal between the at least one function board and the at least one processor board.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: February 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-Won Kim
  • Patent number: 7203306
    Abstract: A cost-effective technique for inserting a switching module into a line pair of a local telecommunications network is disclosed. In particular, the illustrative embodiment does not replace a punch-down block at a cross-connect, but rather inserts the switching module between the modular connectors that are usually co-located with the punch-down block and that connect the cable pairs to the punch-down block. In other words, the illustrative embodiment provides for a technician to disconnect a pair of modular connectors and to insert a switching module between them, wherein the switching modules inputs and outputs are provided via modular connectors.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: April 10, 2007
    Assignee: Loopexpert Technologies, Inc.
    Inventors: Douglas Edward Bain, David Frederick DiBiase, George Andrew Holz, Robert Ellis Richton
  • Patent number: 6788782
    Abstract: Disclosed is an apparatus and method for switching between two network lines, such as telephone subscriber lines. Households and offices are increasingly equipped with multiple network lines for voice and data communications. The line switching unit of the present invention has a first terminal for receiving a CPE line from a CPE device. First and second switches of the unit each connect a common terminal to a first switched terminal responsive to a first value of a control signal received at a control terminal of each switch and to a second switched terminal responsive to a second value of the control signal. The first switched terminal of the first switch is connected to the first terminal and the second switched terminal of the second switch is connected to the first terminal. The common terminal of the first switch is connected to a first network line and the common terminal of the second switch is connected to a second network line.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: September 7, 2004
    Assignee: 3Com Corporation
    Inventors: Don Fotsch, Earl Turner
  • Patent number: 6038303
    Abstract: A service and facility initiation device (10) includes a first relay matrix (12) and a second relay matrix (14) coupled by an initiation bus (16). The first relay matrix (12) includes relays (30) that provide service feeds to primary/redundant and secondary service drops from primary and secondary in-service feeds received at the first relay matrix (12) and additional service feeds from the second relay matrix (14) via the initiation bus (16). The second relay matrix (14) includes relays (34) to place additional service feeds onto the initiation bus (16). The service and facility initiation device (10) includes a modem (28) or other communications interface that receives external control information to remotely operate relay drivers (20) for appropriate configuration of the relays (30 and 34) according to the service needs and requests of local customers.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: March 14, 2000
    Assignee: Alcatel USA Sourcing, L.P.
    Inventors: David A. Sanford, Robert D. Connolly, Dave S. Collis
  • Patent number: 5912960
    Abstract: A service and facility initiation device (10) includes a first relay matrix (12) and a second relay matrix (14) coupled by an initiation bus (16). The first relay matrix (12) includes relays (30) that provide service feeds to primary/redundant and secondary service drops from primary and secondary in-service feeds received at the first relay matrix (12) and additional service feeds from the second relay matrix (14) via the initiation bus (16). The second relay matrix (14) includes relays (34) to place additional service feeds onto the initiation bus (16). The service and facility initiation device (10) includes a modem (28) or other communications interface that receives external control information to remotely operate relay drivers (20) for appropriate configuration of the relays (30 and 34) according to the service needs and requests of local customers.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: June 15, 1999
    Assignee: Alcatel USA Sourcing, L.P.
    Inventors: David A. Sanford, Robert D. Connolly, Dave S. Collis
  • Patent number: 5832071
    Abstract: An electronic patching system includes a first plurality of ports connected to the terminations of a plurality of telephone and data lines from the utility central office, and a second plurality of ports wired to a plurality of telecommunications devices. Both pluralities of ports are coupled to inputs of a controlled switching matrix, which connects each of the telecommunications devices to one or more of the telephone and data lines. The switching matrix is operated by a programmable logic array that directs the matrix to establish and maintain the desired connections between the telephone equipment and the telephone and data lines, computer network lines, and the like. The switching matrix includes a high voltage switch portion to handle analog telephone instruments. An algorithm for controlling the programmable logic array is created using a personal computer, and stored in memory.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: November 3, 1998
    Assignee: Voelker Technologies, Inc.
    Inventor: Joseph L. Voelker
  • Patent number: 5798580
    Abstract: Contention free switches, networks and global interconnection systems for routing messages from N input sources to M output destinations are disclosed.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: August 25, 1998
    Inventors: Valentin Morozov, Robert L. Emerald
  • Patent number: 5500753
    Abstract: A method and system to connect an optical network unit with a plurality of user sites. The invention includes the steps of and circuitry for connecting a plurality of line circuits to a cross-connect matrix. The optical network unit contains both the line circuits and the cross-connect matrix. In the invention, a plurality of drop connectors connect the cross-connect matrix to a plurality of user sites such as homes. The method and system further include circuitry that remotely controls the cross-connect matrix from a central office or network management system to connect selected ones of the line connectors to selected ones of the drop connectors and, thereby, electrically connect the optical network unit to the plurality of user sites.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: March 19, 1996
    Assignee: Alcatel Network Systems, Inc.
    Inventor: Joseph E. Sutherland
  • Patent number: 5457740
    Abstract: Disclosed is a cross point mixer including a cross point switch and a mixing circuit provided on the output side. The cross point switch includes n.times.m switches arranged in a matrix manner. Each of the switches corresponds to one of a plurality of n input terminals receiving signals, and corresponds to one of a plurality of m output terminals outputting signals. When on, each of the switches forms a signal transmission path which connects a corresponding input terminal with a corresponding output terminal. The mixing circuit provided on the output side receives signals from the n switches correspondingly associated with the output terminal, and subjects the signals to mixing for output to the output terminal.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: October 10, 1995
    Assignee: Rohm Co., Ltd.
    Inventor: Mitsuhiko Noda
  • Patent number: 5455856
    Abstract: A partially automated cross-connect method and system for temporarily provisioning telephone services through the remote activation of a cross-connect between a feeder cable pair and a distribution cable using a bus pair. Permanent cross-connects are deferred until a sufficient number are accumulated that warrant a dispatch to the cross-connect location by a telephone company technician. Where the technician would manually install permanent cross-connects in place of all the previously installed temporary cross-connects. The connections previously made using the bus pair would be deactivated freeing the bus pair for future temporary cross-connects.
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: October 3, 1995
    Assignee: Bell Communications Research, Inc.
    Inventor: Roger E. Story
  • Patent number: 5425094
    Abstract: A cross point switch mounted on a telephone-related device such as a telephone. When an alternate power source request signal is low, switches are controlled in response to external data. When the signal is high, a predetermined switch or switches are forced to be turned on and other switches are forced to be turned off. As a supply voltage obtained from a commercial power supply drops, the request signal goes high. When the request signal is high, a voltage obtained from telephone line power is supplied only to necessary electric circuits. Only the most basic functions such as talking over a telephone line can be used such that power consumption can be minimized.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: June 13, 1995
    Assignee: Rohm Co., Ltd.
    Inventor: Mitsuhiko Noda
  • Patent number: 5398239
    Abstract: A crosspoint analog data selector for coupling data received on a predetened number of input channel lines onto a predetermined lesser number of output channel lines. The crosspoint analog data selector includes a selector section and a control section. The selector section includes two or more crosspoint switch sections, each crosspoint switch section including a predetermined number of input terminals and a predetermined number of output terminals. Each output terminal is individually energizable. Each input terminal is connected to a different input channel line, such that none of the input channel lines are connected to input terminals of multiple crosspoint switch sections. Each output terminal is connected to one of the output channel lines such that each output channel line is connected to an output terminal of each of the crosspoint switch sections.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: March 14, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Chester Fedor, Kevin C. Fitzpatrick
  • Patent number: 5377182
    Abstract: The invention is embodied in an N.times.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: December 27, 1994
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Steve P. Monacos
  • Patent number: 5371786
    Abstract: Disclosed is a cross-connect system, such as a feeder distribution interface for telecommunications. User and feeder wires are each coupled to two sides of the matrix in order to provide flexibility in the electrical path. The switches, which are of the double-pole, double-throw variety, are employed at selected crosspoints of the switch matrix in such a manner as to reduce the number of switches required.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: December 6, 1994
    Assignee: AT&T Bell Corp.
    Inventor: Lawrence M. Paul
  • Patent number: 5198808
    Abstract: In a matrix switch apparatus with a diagnosis circuit, a switch unit is positioned between a group of input line interface circuits and a group of output line interface circuits. The switch unit includes front switches and back switches, respectively, equal in number to the input and output line interface circuits, and middle switches of 2M in number. The number M is the number of interface elements included in each of the input and output line interface circuits. Each of the front and back switches is provided with input and output ports having a ratio, respectively, determined by (M+1) and 2M, and each of the middle switches is provided with input and output ports, respectively, equal in number to 2M. In accordance with the above structure, the diagnosis of a stand-by port connected to a stand-by interface element included in each of the input and output line interface circuits can be carried out, even if all working input and output ports connected to the interface elements are occupied for operation.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: March 30, 1993
    Assignee: NEC Corporation
    Inventor: Hirotsugu Kudo
  • Patent number: 4907253
    Abstract: The invention comprises an improved cross-connect switch constructed from a plurality of switch modules for connecting input lines to output lines. The improved switch includes a switch module replacement system that allows a craftsperson to replace a switch module without interrupting connections between cross-connect switch input and output lines that utilize switch points in the switch module in question.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: March 6, 1990
    Assignee: Pacific Bell
    Inventor: Donald L. Watrous
  • Patent number: 4833708
    Abstract: A telecommunications system includes at least one central office having an electronic supervisor for supervising a plurality of outside plant electronic cross-connect cabinets and a plurality of electronic cross-connect cabinets located remotely from the central office for automatically connecting and disconnecting distribution pairs to feeder pairs terminated at the cabinets. Each cabinet is connected to the electronic supervisor via a control pair in a feeder cable extending from the central office to the cabinet. The electronic supervisor at the central office automatically locates, verifies the identity of, and supervises automatic switching operations at a selected one of the plurality of electronic cross-connect cabinets by providing operating power and signalling information to the selected one via the control cable to which it is attached. Details of the electronic cross-connect cabinet independently form an aspect of the present invention.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: May 23, 1989
    Assignee: Remote Switch Systems, Inc.
    Inventor: Whitney E. Goodrich
  • Patent number: 4750202
    Abstract: The present invention provides a single stage crossbar and a controller for controlling the crossbar that provides a capacity for "wide-sense non-blocking" connection of input signals to outputs that exceeds the number of outputs to which a given input is connected. Thus, the capacity of the crossbar is increased using a smaller number of crosspoints in a single stage than was available in the prior art.In one aspect, the present invention is an apparatus for connecting a signal on one of a plurality of inputs to a non-busy one of a plurality of outputs, comprising a plurality of controllable switches arranged so that each input is connectable to at least an integer q outputs and so that no two inputs share more than an integer c outputs. The invention further comprises a controller for controlling the controllable switches to connect the signal to a non-busy output so that no more than an integer f outputs that are connectable to any input become busy, where f is less than q.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: June 7, 1988
    Assignee: International Business Machines Corporation
    Inventors: Paul N. Feldman, Joel Friedman, Nicholas J. Pippenger