Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7292747 | Strictly non-blocking switch core having optimized switching architecture based on reciprocity conditions A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciproca... | 11/06/2007 |
| 7224861 | Strictly non-blocking switch core having optimized switching architecture based on reciprocity conditions A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciproca... | 05/29/2007 |
| 6696917 | Folded Clos architecture switching A novel folded Clos switch apparatus and method therefore for reducing the number of unemployed I/O terminals of a multistage Clos switching network by partitioning a crossbar switch to provide both the first (yth) and last (x-y+1th) stage of a multistage... | 02/24/2004 |
| 6337859 | Non-blocking crossconnect apparatus A non-blocking crossconnect apparatus includes a primary bi-directional crossconnect device and a plurality of secondary bi-directional crossconnect devices. The primary crossconnect device has a plurality of pairs of bi-directional signal ports. A first ... | 01/08/2002 |
| 5345228 | Very large scale modular switch Switch resources for a one-sided crosspoint switch with distributed control (i.e., switch ports, internal busses and controllers) have been organized so that modular growth is facilitated by: (1) assigning each switch port uniquely to one of the controlle... | 09/06/1994 |
| 5325089 | Two-stage, at least doubled ATM reversing switching network having (2n×2n) switching matrices Two-stage, at least doubled ATM reversing switching network having (2n×2n) switching matrices. For expanding a two-stage, doubled ATM self-routing reversing switching network, the switching matrices of the B switching stage can be respectively doubled in... | 06/28/1994 |
| 5264842 | Generalized usage of switch connections with wait chain Requestors for a busy port in a multi-port communication system are enqueued in wait chains. The connectivity of a crossbar switch is employed to store the wait chains. Elements of the wait chain are modified to provide the right connections; that is, a g... | 11/23/1993 |
| 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 |
| 4914429 | Switch components and multiple data rate non-blocking switch network utilizing the same A switching component preferably in integrated circuit form is provided. The switching component has a plurality of inlet and outlet data ports with associated inlet and outlet clock ports, a clock regenerator and a flip-flop for each outlet data port, an... | 04/03/1990 |
| 4908823 | Hybrid communications link adapter incorporating input/output and data communications technology There is disclosed a data communications link adapter providing flow of data control and status information between an input/output (I/O) Backplane and a fiber optic Frontplane. The adapter represents a melding of I/O channel extender technology and data ... | 03/13/1990 |
| 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 sub-array boards is determined as if they had been arranged, as ... | 01/24/1989 |
| 4677436 | Expandable electronic matrix An arrangement for connecting an array of individual electronic elements into a readily expandable matrix. The arrangement comprises a plurality of matrix slices with each slice including a set number of electronic elements as well as a row and a column b... | 06/30/1987 |
| 4630045 | Controller for a cross-point switching matrix A controller for controlling a one-sided switching matrix comprising a plurality of circuit elements under the control of logic circuitry. The controller interprets a request for connection or disconnection, determines if it is possible, selects a path th... | 12/16/1986 |
| 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 |
| 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 configured so that the input from each terminal is switched back... | 01/01/1985 |
| 4079207 | Telecommunication switching system A telecommunication switching system in which a required number of switching arrays or matrixes are combined together and the switching arrays or matrixes are divided into a group having in a predetermined ratio outlets of non-multiple connection and outl... | 03/14/1978 |
| 3995122 | End mark controlled switching system and method An end mark controlled switching system including a crosspoint matrix and a plurality of single ended junctors for linking paths within the matrix. The single ended junctors are adapted to link matrix inlets by firing crosspoints associated with such inle... | 11/30/1976 |
