Topic
Time switch
About: Time switch is a research topic. Over the lifetime, 1028 publications have been published within this topic receiving 3343 citations. The topic is also known as: switch clock & timer switch.
Papers published on a yearly basis
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Papers
Patent•
NEC1
TL;DR: In this paper, the authors describe a cross-connect system in which incoming and outgoing fiber optic trunks carrying WTDM signals are terminated to first inlet ports and first outlet ports of an optical space switch and a time division multiplexer is connected to a second inlet port of the wavelength-divided space switch.
Abstract: In an optical cross-connect system, incoming and outgoing fiber optic trunks carrying WTDM signals are terminated to first inlet ports and first outlet ports of an optical space switch. A wavelength division demultiplexer is connected to a second outlet port of the optical space switch and a wavelength division multiplexer is connected to a second inlet port of the optical space switch. A wavelength-divided space switch has first inlet ports connected to the outputs of the wavelength division demultiplexer and first outlet ports connected to the inputs of the wavelength division multiplexer. A time division demultiplexer is connected to a second outlet port of the wavelength-divided space switch and a time division multiplexer is connected to a second inlet port of the wavelength-divided space switch. The outputs of the time division demultiplexer are connected to first inlet ports of a time switch and the inputs of the time division multiplexer are connected to first outlet ports of the time switch. The time switch has second inlet ports and second outlet ports connected to a switched network.
112 citations
Patent•
10 Jun 1998
TL;DR: In this article, a dielectric-wall linear accelerator is improved by a highvoltage, fast rise-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators.
Abstract: A dielectric-wall linear accelerator is improved by a high-voltage, fast rise-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface.
77 citations
Patent•
5 Dec 1989
TL;DR: In this paper, the authors provide switching components and switching networks utilizing a plurality of identical switching components are provided for cross-connecting virtual tributaries of substantially SONET formatted signals.
Abstract: Switching components and switching networks utilizing a plurality of identical switching components are provided for cross-connecting virtual tributaries of a plurality of substantially SONET formatted signals. The switching components each receive at least one SONET formatted signal and disassemble the signal into its virtual tributary (VT) payload components while marking the V5 byte. The VT data is buffered and switched in phase, time, and space to effect the cross-connect onto SONET signal generating output buses which are synchronously clocked buses running through the switching components. The space switch (110-a1...110-a28) is essentially a non-blocking switch matrix. The time switch (110-a1...110a28) is a comparison means associated with each incoming VT which compares the VT destination of the data in the buffer (110-a1...110a28) to a virtual tributary time indication based on the phase of the synchronous clocked output buses. When the bus phase is indicative of the VT destination of the data, the data is sent to the output bus (160-1...160-32) dictated by the space switch connection.
71 citations
Patent•
28 Apr 1987TL;DR: In this paper, the authors propose a non-saturating, non-blocking, full matrix time switch which uses routing information to establish a connection within one tdm frame, whereby connections for data of any type (including switch control information) and of arbitrary duration can be handled efficiently.
Abstract: Data to be switched is preceded by a header containing routing information for establishing a connection via a switch, and is accompanied by additional information which indicates the start of the header, in response to which a connection is established, and the end of the data, in response to which the connection is terminated. The switch is a non-saturating, non-blocking, full matrix time switch which uses the routing information to establish a connection within one tdm frame, whereby connections for data of any type (including switch control information) and of arbitrary duration can be handled efficiently. An incoming channel can be connected to any free channel or to a specified outgoing channel of any output port, and contention resolution is provided for simultaneous requests for connection to a single outgoing channel. Interconnections among crosspoint nodes are reduced and simplified using token ring and systolic interconnection techniques.
50 citations
Patent•
14 Oct 1988
TL;DR: In this article, an asynchronous time switch having a switching fabric made up of such elements (16) copes with the maximum delay requirements of voice class signals by priority of selection over other classes of signals.
Abstract: The switching element (16) comprises a plurality of selectors (32) each having an input for a tagged packet signal and a plurality of arbiters (34) each having an output for a transmitted packet signal. Between each selector (32) and each arbiter (34) is a signal path connection. Each arbiter (34) selects the first received packet signal and prohibits transmission from all other selectors by assertion of a busy signal until transmission of the first received packet signal is completed. An asynchronous time switch having a switching fabric made up of such elements (16) copes with the maximum delay requirements of voice class signals by priority of selection over other classes of signals. Increased throughput is attained by means of multiple switch fabric planes and by use of flooding. The latter technique involves sending copies of a packet signal along all possible paths to a desired output, all but one copy failing at arbiters (34) within the switch plane fabric or at a switch plane arbiter (24).
49 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 2 |
| 2020 | 2 |
| 2019 | 3 |
| 2018 | 24 |
| 2017 | 29 |
| 2016 | 43 |