Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 5923643 | Redundancy, expanded switching capacity and fault isolation arrangements for expandable telecommunications system Redundancy, expanded switching capacity and fault isolation arrangements for use with an expandable telecommunications system. An inter-nodal network connects a plurality of programmable switching nodes or other nodes. One or more additional inter-nodal n... | 07/13/1999 |
| 5912963 | Method and apparatus for providing an alternate telecommunications network A media selection device is in functional parallel with an alternate local telephone network and an existing local telephone network. Upon detecting a loss of local power, the device switches to the local exchange network based on the assumption that the ... | 06/15/1999 |
| 5892451 | Remote management of computing devices An enhanced desktop management interface within a computing device interfaces with a management information system. The enhanced desktop management interface includes a service layer which has a management interface and a component interface. A plurality ... | 04/06/1999 |
| 5889775 | Multi-stage switch The present invention provides a multi-stage switch. An input or first stage receives a plurality of information signals. An output or third stage distributes a plurality of information signals. A middle or second stage establishes a plurality of signal p... | 03/30/1999 |
| 5870460 | System for least cost routing of data transactions in a telecommunications network A system allocates data links between a switch and a database for data transactions in a telecommunications network. The data links between the switch and the database carry the transaction data for providing routing, card verification, address translatio... | 02/09/1999 |
| 5835024 | Multi-stage interconnection network with selectable function switching apparatus The present invention addresses the limitations of prior art ALLNODE switches by including dual priority, adaptive, path seeking, and flash-flood functionalities in a single ALLNODE switch. The switch of the present invention further includes a selection ... | 11/10/1998 |
| 5825301 | Cross connect apparatus with routed path protecting function In a cross connect apparatus, a switch section includes a plurality of switches and having n input terminals and m output terminals. A control section reads a current connection information indicative of a current connection state of the switch section in... | 10/20/1998 |
| 5796718 | Method of and system for intelligent access line protect switching A method and system for providing intelligent protection against access line failures in a telecommunications system including customer premises equipment connected by a plurality of access lines to a data transport network. The system detects a line faul... | 08/18/1998 |
| 5727051 | System and method for adaptive routing on a virtual path broadband network A general dimensioning method and system for allocating limited transmission resources to virtual paths and virtual networks on a physical network given offered traffic on each virtual path or virtual link. A hierarchical structure is defined with a layer... | 03/10/1998 |
| 5644713 | Method of effecting dynamic management of path or routing information without requiring an internetworking operation for routing In a method for transferring path information of an internetworking equipment (router), the router is connected to an alternative router or routers by means of a circuit of an ISDN, whereby routing information between networks is communicated. When activa... | 07/01/1997 |
| 5627889 | Service restoration technique for telecommunications facilities having a single degree of freedom A technique is provided for re-routing telecommunications traffic that is originally destined for passage between an inter-exchange carrier, via a first gateway POP (18) at a first local exchange (121), and a second local exchange (125 | 05/06/1997 |
| 5568544 | Routing incoming calls to a PBX in response to route requests from a host computer An embodiment of the present invention is a method for dynamically routing incoming calls through a private branch exchange (PBX) in response to commands issued by a host computer and, in particular, for routing incoming calls after routing information ha... | 10/22/1996 |
| 5487072 | Error monitoring algorithm for broadband signaling The error performance of an ATM signaling link operating under the service specific connection oriented protocol (SSCOP) is monitored by determining the maximum retransmission count (i.e., the number of times a message has to be retransmitted from a trans... | 01/23/1996 |
| 5479396 | Redundant system having signal path operation function A redundant system includes a redundant structure and a selector of the output signals of the redundant structure the selector further including a selection/operation signal converter and a path operation signal processor provided in each circuit package.... | 12/26/1995 |
| 5440626 | Arrangement for sharing a telephone office code An end office of the PSTN, which employs independent switching networks which share one or more office codes, is served by a single assigned node on the CCS network. The signaling processor which serves the assigned node, screens all incoming call message... | 08/08/1995 |
| 5426420 | Method for alternate circuiting of data stream Method for alternate circuiting of a data stream. In the prior art, the switch status of a switchover means was controlled by what is referred to as an activation means. This has the disadvantage that a faulty control of the switchover means can occur giv... | 06/20/1995 |
| 5408231 | Connection path selection method for cross-connect communications networks A method and system for finding a path through a communications matrix represents the assignment of a center stage switch through an input switch to input gates by an input stage array, center stage switch connections between an input stage switch and an ... | 04/18/1995 |
| 5365578 | Method and system for transferring special circuit telephone pairs The system has two units for transferring a telephone circuit from an old pair to a new pair between two locations. Each unit has a carrier amplitude measuring circuit to determine which location has the larger carrier amplitude and therefore which is the... | 11/15/1994 |
| 5343194 | Methods and system for immediately connecting and reswitching digital cross-connect networks A method and system to immediately connect and reswitch connection configurations through a rearrangeable communications matrix that immediately connects an input gate causing rearrangeably blocked condition through the communications matrix to an output ... | 08/30/1994 |
| 5146452 | Method and apparatus for rapidly restoring a communication network The present invention provides an approach to reconnect a communications network such as a DS3 telephone-type network when a span of DS3 channels is rendered inoperative, such as by cutting, within the 1.5 second time frame necessary to prevent disablemen... | 09/08/1992 |
| 5131016 | Communications network data compression control system and method Data communication nodes in a network comprising a plurality of nodes linked together to form communication paths negotiate by passing messages to identify to one another the maximum supportable degree of data compression capability. Logical comparisons a... | 07/14/1992 |
| 5115425 | Switching system reliability A distributed switching system where calls are processed in one of two call processing modes: 1) in a first call processing mode, available paths through a time-multiplexed switch (TMS) are selected without reference to whether the paths are presently est... | 05/19/1992 |
| 5048013 | Transmission congestion control method and apparatus A congestion control method and apparatus for use with a communications link comprising a plurality of N channels. A plurality of at most N-1 queues are sequentially polled, and data is output therefrom to the communications link, thereby leaving at least... | 09/10/1991 |
| 5014264 | Circuit configuration for telecommunication switching systems, in particular PCM time division multiplex telephone switching systems with a central switching network and peripheral sub-switching networks connected to it Line groups with doubled central switching network and connected via correspondingly two time division multiplex lines and having inter alia one sub-switching network and one group control system each are assigned to each other in pairs. The connection de... | 05/07/1991 |
| 4979164 | Switching system reliability The switch units of a distributed switching system are connected by a central switch for advancing connections between the switch units and also by inter-switch unit trunks. To save switch unit resources, trunk services such as scanning and signaling are ... | 12/18/1990 |
| 4901347 | Circuit arrangement for telecommunication switching systems, particularly PCM-time-division multiplex telephone switching systems with a central matrix and with local sub-switching matrices connected to the same A circuit arrangement for telecommunication switching systems, including PCM time division multiplex telephone switching systems, with double central switching matrix by which two corresponding line trunk groups comprising a sub-switching matrix each and ... | 02/13/1990 |
| 4797915 | Communication system having automatic call route selection An automatic route selection capability for a communication system is described which enables the system to utilize digits of a called party number to select in a predetermined manner a predefined group of line pools and a line therein over which the call... | 01/10/1989 |
| 4763316 | Circuit arrangement for centrally controlled time division multiplex telecommunication exchange facilities A circuit for a centrally controlled time division multiplex telecommunication exchange having PCM line/trunk groups connected to a switching network wherein each line/trunk group comprises a plurality of line units to connect one time division multiplex ... | 08/09/1988 |
| 4733320 | Line protection switch equipment A line protection switch equipment (LPSW) in a communication system, having a plurality of two-input and two-output switches connected between lines including a protection line and working lines, the switches being connected in series by a loop line which... | 03/22/1988 |
| 4731825 | Nonblocking switching system and method A nonblocking switching system for communications systems is characterized by two identical blocking networks, each for being connected in series between sources and destinations to be selectively interconnected. One network actively establishes paths bet... | 03/15/1988 |
| 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 |
| 4625082 | Local area network communications system for maintaining service in the event of a fault In a telecommunication system with a number of units (Ula-Una, Ulb-Unb) for control purposes and also for subscriber facilities, each such unit is duplicated, as is the system controller (SCa, Scb). There are two local area networks (1,3), each of which i... | 11/25/1986 |
| 4605928 | Fault-tolerant array of cross-point switching matrices A cross-point switch comprising an array of cross-point matrices 60, 62, 64, 65 in which the internal lines 22-32 are connected to external lines 45-54 by tri-state buffers 36-44. The external lines can connect different switching matrices. Redundant matr... | 08/12/1986 |
| 4590336 | Special circuit transfer via cable analyzer A cable analyzer is capable of having at least 3 pairs of wire from telephone cables connected to the analyzer. By a central processing unit or computer in the analyzer, a series of relays connect any one of the pair of wires to a routing board. At the ro... | 05/20/1986 |
| 4096356 | Call restriction arrangement A PBX call restriction arrangement is disclosed in which a plurality of call rerouting schemes are concurrently provided. The class of service assigned each station is used to define both the types of calls prohibited to the station and the rerouting trea... | 06/20/1978 |
| 3993873 | Digital switching for PABX telephone communication systems Disclosed is a method and apparatus for digitally switching audio signals in a telephone communication system having a plurality of telephone stations with their voice communication channels selectively coupled by way of analog to digital and digital to a... | 11/23/1976 |
| 3978291 | Automated main distributing frame system An automated main distributing frame system comprises a multistage network with each stage including passive switches on which cross connections are made by shared, automated actuators under computer control to thereby provide paths through the network. T... | 08/31/1976 |
| 3962552 | Switching network and peripheral circuits for telecommunications system Disclosed is a stored program, computer controlled telecommunications system including as its sole switching network an end-marked, multiple stage matrix network with a line side and a supervisory side. Almost all control functions including line scan and... | 06/08/1976 |
