Class 379/291 - With detail of crosspoint switching structure (e.g., crossbar)

Subclass of Class 379 - Telephonic communications
Definition: Subject matter particularly describing a feature of selection
No. of patents: 29
Last issue date: 07/27/2010

Number	Title	Issue Date
7764781	DSX module with performance monitoring A DSX system having a plurality of jacks mounted in a chassis, the jacks including IN and OUT ports accessible from the front of the chassis and tip and ring springs corresponding to each of the IN and OUT ports. The chassis also includes IN and OUT co-axial cable c...	07/27/2010
6958598	Efficient switching architecture with reduced stub lengths A switching topology for communicating signals in an automatic test system includes a plurality of switching circuits each for selectively passing signals or crossing signals. Switching circuits are connected together such that each node of any switching circuit con...	10/25/2005
6754329	System and method for switching telecommunications service in a multiple dwelling unit/multiple tenant unit environment A system and method for managing, switching, and reconfiguring physical connections of telecommunications services that provides improved cost and timeliness. The method comprises the steps of: providing telecommunications service for telecommunications equipment of...	06/22/2004
6614904	Apparatus and method for effecting a communication arrangement between switch arrays An apparatus is disclosed for effecting a communication arrangement of a plurality of communication circuits between first connection loci of a first switch array and second connection loci of a second switch array. The apparatus comprises: (a) a first co...	09/02/2003
6510222	Miniature connector array A line multiplier is formed of n upstream lines and m downstream lines where m>n by providing a micro-technology array of m×n crosspoints switches using, e.g., magnetic latching, wherein the latching magnets are heated to the Curie temperature to cause t...	01/21/2003
6265842	Cross-connect method and apparatus A remotely controlled cross-connection switching matrix, particularly suited for telephone systems, has a jumper pin picker and placement mechanism selectively movable along each of three axes under the control of a single drive motor translating a single...	07/24/2001
6031349	Cross-connect method and apparatus A remotely controlled cross-connection switching matrix, particularly suited for telephone systems, has a jumper pin picker and placement mechanism selectively movable along each of three axes under the control of a single drive motor translating a single...	02/29/2000
5864617	Call queuing and distribution Incoming calls on a plurality of lines (Li) are distributed to a plurality of resources (Rn) by a queuing and distribution system which associates with each of the possible resource/line combinations a so called "pleasure value" that...	01/26/1999
5457740	Cross point mixer for a telephone set 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×m switches arranged in a matrix manner. Each of the switches corresponds to one of a plurality of n input ...	10/10/1995
5398239	Crosspoint analog data selector 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. ...	03/14/1995
5319639	Crossbar with return net for scalable self-routing non-blocking message switching and routing system A crossbar useful for self-routing messages is described having a return network that can return all messages, or their headers, that encounter a busy node at the output. A system is described in which this crossbar with return network can operate as a bu...	06/07/1994
5198808	Matrix switch apparatus with a diagnosis circuit having stand-by ports and reduced size matrix switching elements 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, equ...	03/30/1993
5113431	Distributed control teleconferencing voice bridge An arrangement for teleconferencing voice and data is provided through an arrangement that includes a voice bridge that offers individual control of the conferencing setup. The voice bridge comprises a crossbar with crosspoints that include a series conne...	05/12/1992
5072217	One-sided crosspoint switch with distributed control In a one-sided crosspoint switch, multiple controllers are used instead of a single controller for control of the switching matrix. The controllers operate in parallel, thereby handling requests for connections and disconnections from ports at a higher sp...	12/10/1991
4817134	Automated matrix for communication line connections A crossconnect system utilizes a computer accessed matrix of crosspoints formed by a set of parallel conductors oriented perpendicular to a second set of parallel conductors with the sets lying in parallel planes. The crosspoints form open contacts which ...	03/28/1989
4685127	System for converting a No. 5 crossbar telephone switching central office to a conforming equal access central office A method of providing equal access to a number of long distance carriers in local telephone company office containing No. 5 crossbar switching machines. Calls are intercepted between the line link frame and the originating registers. If the call is a long...	08/04/1987
4635250	Full-duplex one-sided cross-point switch A full-duplex one-sided switching chip comprising externally connected lines as input/output pairs and pairs of bi-directional interconnection lines. Duplex cross-points selectively connect input/output line pairs to the interconnection line pairs. The in...	01/06/1987
4611204	Arrangement for an electromechanical space switching network This invention is a cost efficient network arrangement for a space switching network for high voltage applications. This arrangement minimizes the number of control signal leads for a multistage switching network. If a switching network has N stages, then...	09/09/1986
4580011	Distributed processing telephone switching system A telephone switching system and method eliminates the need for high speed computers by employing a master controller having its own microprocessor to coordinate and control a tone controller, a switch controller, and a coupler controller, each of which h...	04/01/1986
4236049	Electronic key telephone system A key telephone system includes among other things a central switching network comprises of a main switch matrix including main talking paths and trunk paths, an auxiliary switch matrix including auxiliary talking paths and a coupling matrix between the m...	11/25/1980
4231017	Switching matrix equipment having a series circuit of relay coil and self-holding diode at each crosspoint A switching matrix equipment is disclosed for use in a telecommunication switching system. Each crosspoint comprises a series circuit of a relay coil and a self-holding diode. First and second switch groups cooperate to select a crosspoint and to fire a s...	10/28/1980
4088845	Relay matrix switch A relay matrix which constitutes an array of switches providing connection points between a set of "horizontal" inputs and a set of "vertical" outputs, has n relays per column disposed in p columns. Each relay column is associated with a register which fu...	05/09/1978
4085294	Control point driver circuit A control point driver circuit for use in a telephone exchange for energizing and deenergizing a control element such as a control relay in response to set and reset input pulses. The control point driver circuit comprises a transformer having a centertap...	04/18/1978
4075433	Signal switching device Signal switching devices employing electromagnetic switching elements having particular application in the switching network of automatic telephone exchanges are disclosed. The switching devices are of the kind comprising an input and output signal line e...	02/21/1978
3999019	Private automatic branch exchange providing line appearance connection of operator complex to single stage matrix An electronic private automatic branch exchange may avoid the need for access trunks and information trunks in the operator complex by utilizing a single stage switching matrix to effect connections between line circuits, trunk circuits, and the operator ...	12/21/1976
3993871	Relay matrix for selector networks A relay matrix, especially a reed relay matrix for selectors in telephone exchanges, consists of a crossing point network, i.e. relays arranged in rows and columns constituting switching elements of speech paths, control unit and holding units common to s...	11/23/1976
3983331	Switch having a matrix of relays Switch comprising a matrix of relays, each providing a connection point between a horizontal input and a vertical input, and auxiliary control relays, at least one per vertical input, fulfilling the horizontal and vertical input control functions and the ...	09/28/1976
3941949	Method and apparatus for isolating malfunctions occurring in sender-receiver communication switching system equipment A method and apparatus for isolating malfunctions occurring in a communication switching system having a line switching network for establishing communications selectively between calling and called lines under the control of common equipment including a ...	03/02/1976
3936612	Control and holding circuit for relay matrices In a relay matrix there are provided a plurality of control and holding circuits for selecting which of the relays are to be energized. The control and holding circuits which are associated with groups of relays include two-state devices which are trigger...	02/03/1976

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Class 379/291 - With detail of crosspoint switching structure (e.g., crossbar)