Matches 1 - 40 out of 40


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8169296 Switch matrix  
A switch matrix module (600) includes programmable stub breakers (508-512, 514-518) which can break off the bus and isolate unused portion of the switch matrix. Using three-way stub breakers...
7777650 Key system with two operation nodes for detecting status of keys  
A key system utilizes two operation nodes to detect the status of a plurality of keys, and each operation node can output and read a high, a low, and a clock signal. When an operation node outputs...
7592894 Reconfigurable switch having an overlapping Clos Architecture  
A data-communications switch having at least two modes of operation is provided. The data communications switch includes a first Clos switch having a first mode of operation and a second Clos...
6995656 Switching device comprising local decoding means  
The invention relates to a switching device comprising a plurality of inputs and outputs which are interconnected by a matrix of interconnection points for transmitting electric signals supplied...
6639523 Resistive keyboard with status keys  
An arrangement of a plurality of status keys in a keyboard for entering information in an electronic device. The keyboard comprises a plurality of regular keys connected to a resistive strip at a...
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...
6525650 Electronic switching matrix  
A high density electronic switching matrix (ESM) includes several splitting modules (200) arranged along a first axis, each including a signal input (202) and several splitter outputs (204). The...
6157638 High density packet switch with high speed interfaces and method for using same  
A high speed packet switch (100) is provided which uses a fabric size of 128×128 and operates at a 2.5 Gbps rate. Parallel data transport techniques are used to obtain the 2.5 Gbps data rate while...
6122249 Add-drop multiplexing apparatus  
An add drop multiplexing (ADM) apparatus has a simple and compact structure. The ADM apparatus has high-order interfaces connected to a high-order network, path setting units each for setting a...
5905723 System for achieving scalable router performance  
A network interconnection device having a router connected by a plurality of links to at least one multiport switch is presented. Each of the plurality of links is connected between one port of...
5847660 Method for avoiding interference in a cable telephony system  
Carriers (51) in a cable telephony system (10) are prioritized (70) according to their usability. A local access manager (LAM) (27) creates a frequency list that ranks the carriers (51) based upon...
5818349 Switch composed of identical switch modules  
A crosspoint switch having M input terminals and N output terminals has (M/m) times (N/n) crosspoint switch modules each having m input conductors and n output conductors. (M/m) of the crosspoint...
5686905 Input/output switching apparatus having virtual control  
An input/output switching apparatus which can construct the system more flexibly as compared with the conventional system. The input/output switching apparatus is configured so that a user can...
5475383 Cross-point type switch using common memories  
A cross-point type switch includes a plurality of basic elements arranged in rows and columns so as to form a matrix arrangement of the basic elements. Each of the basic elements includes a...
5430442 Cross point switch with distributed control  
A communications network including several ports where each port is connected to at least one data processing system element. The ports are interconnected by an information bus. Additionally, the...
5182554 Third party evavesdropping for bus control  
A communication system for providing a communication path between two of a plurality of devices. A first port is provided that is connected to at least one device. A second port is provided...
5144293 Serial link communication system with cascaded switches  
A serial link communications system is provided including a first and second switch where each switch is connected to a plurality of devices providing a serial communications link channel between...
4978953 Device for monitoring multiple digital data channels  
A device for switching data channel signal lines of each of a number of data channels through modules having interconnection switching matrices, to a further device adapted to monitor the signal...
4975695 High speed communication processing system  
A communications node for handling circuit and packet switching and capable of expansion to include multiple switching matrices, multiple network processors and multiple packet processors is...
4837855 Non-blocking optical space switch  
An optical space switch is formed in such a manner that switch elements having two inputs and two outputs are arranged in an n×n matrix form and optical signals from n input highways are switched...
4800383 Data processing arrays and a method of producing them  
A notional two-dimensional array of processors is subdivided into a plurality of identical sub-arrays constituted by respective sub-array boards arranged in a stack in which the order of the...
4763124 Signal distribution system hybrid relay controller/driver  
A hybrid controller is used to control a plurality of relays, within a switching matrix, for effecting connection of an equipment under test to at least one of a plurality of test instruments. To...
4719459 Signal distribution system switching module  
The signal distribution function in a signal distribution system is performed in a switching matrix under the control of a hybrid controller. With respect to the switching matrix, there are...
4630046 Broadband switching network in matrix form  
A broadband switching network in matrix form composed of a plurality of rows and a plurality of columns, and including a plurality of crosspoint switching circuits each having an input and an...
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...
4539564 Electronically controlled interconnection system  
An all electronic interconnect system having high flexibility, low cost, and higher reliability. A central matrix is formed from a multiplicity of solid state analog switches in which each switch...
4491838 Starloop communication network and control system therefor  
A starloop communication network for intraestablishment communication in a multiterminal processing system includes a digital switch as its central terminal. In the basic mode, the switch is...
4351985 Coupling system for a telecommunication exchange installation  
A coupling system for a telecommunication exchange installation is described having a plurality of interconnected binary switching matrices. Each switching matrix has at least two row and two...
4198546 Time division multiplex switching network  
A time division multiplex (TDM) switching network having TDM switching units which, through time position conversion, selectively assign time slots on connected TDM lines is described. The TDM...
4075608 Multiple-channel data switch  
A data switch which can rapidly configure and reconfigure multiple channels between computer equipments for digital data transmitted at a rate in excess of 10 megabits per second. The switch...
4024352 Cross-point switch matrix and multiswitching network using the same  
A plurality of cross-point matrices each having a plurality of holding circuits respectively associated with a corresponding cross point are arranged in multiple stages, which are linked with each...
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...
3562436 METHOD FOR SUPERVISION TO DETERMINE THE STATES OF COMMUNICATION LINES  
A supervisory control method and circuit therefor wherein supervisory and evaluation circuits are employed to determine the states of a plurality of signal lines. Inquiry elements are operatively...
3549815 MATRIX CONTROL SELECTION SYSTEM  
3467780 AUTOMATIC SWITCHING NETWORK  
3435417 ELECTRONIC SWITCHING SYSTEM  
3402404 Selective signal transmitting and indicating system  
3324249 Series pathfinding and setting via same conductor in tandem crosspoint switching netwrk  
3235668 Telephone switching network  
2895124 Magnetic core data storage and readout device  

Matches 1 - 40 out of 40