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Topic: Automatic switching system

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	Automatic switching system - Wikipedia, the free encyclopedia
		In data communications, an automatic switching system is a switching system in which all the operations required to execute the three phases of information-transfer transactions are automatically executed in response to signals from a user end-instrument.
		In an automatic switching system, the information-transfer transaction is performed without human intervention, except for initiation of the access phase and the disengagement phase by a user.
		In telephony, it refers to a system in which all the operations required to set up, supervise, and release connections required for calls are automatically performed in response to signals from a calling device.
	en.wikipedia.org /wiki/Automatic_switching_system (131 words)

	System for automatic switching of lighting devices in vehicles - US Patent 6727653 (Site not responding. Last check: 2007-11-07)
		One automatic light switching system, known from German Patent Disclosure DE 195 23 262 A1, has a sensor device, by which the light intensity in the surroundings of the vehicle is detected.
		The system of the invention has the advantage over the prior art that a distinction is made between the light intensity of a light component originating in natural sunlight and the light intensity of a light component originating in artificial light sources.
		For automatically switching the lighting devices, that is, for the low-beam function of the headlights 10 and for the tail lights 12, a system disposed in the vehicle is provided.
	www.patentstorm.us /patents/6727653.html (1664 words)

	Automatic switching system for track-bound freight cars - Patent 5758848
		Automatic switching system as in claim 10, wherein an attainable brake deceleration a.sub.v of the individual freight cars or groups of the cars is automatically determined by the control device from values for mass and brake force.
		Automatic switching system as in claim 16, wherein a target acceleration for the freight car is determined from a measurable value (45) for freight car acceleration (a.sub.w) and a measurable value for running and braking deceleration (a.sub.vr, 47) and a presettable value for target total deceleration (a.sub.vs), using the equation
		Automatic switching system as in claim 18, and further comprising a distance regulator (28), which is operative to slow the freight cars approaching moving freight cars in front in the shunting zone (41) in such a way that a minimum distance safe for switching switches in the switching yard is maintained.
	www.freepatentsonline.com /5758848.html (8753 words)

	Modular automatic telephone switching system - Patent 5022069
		The switching system includes one or more master switching units (102, 112) equal in number to the central office lines which are seved by the system; and a plurality of station switching subsystems (120, 130) corresponding in number to the local stations served by the switching system.
		In the case of a switching system which comprises a plurality of master switching units serving a corresponding plurality of central office lines, the local station apparatus comprises: a plurality of modular, independent automatic station subsystems corresponding in number to the number of subscriber stations served by the switching system.
		In the case of a minimum system which comprises a single central office line and a corresponding single master switching Unit, the station switching subsystem comprising ALS and APS modules is eliminated from the switching system; and the subscriber station sets are directly connected to the station ports of the MSU.
	www.freepatentsonline.com /5022069.html (7229 words)

	Automatic gain compensation in time division switching system - United States Patent 3,934,091
		A time division switching system according to claim 2 wherein said switchable attenuation means are connectable to shunt the output of said summing amplifier and the input of said amplifier means for decreasing said gain.
		In a time division switching system in which each of a plurality of groups of line circuits is served by a respective summing and distribution bus pair and in which a group of trunk circuits is served by a corresponding summing and distribution bus pair, the combination comprising
		Both port switches in the active energy type of time division switching system must be simultaneously operated because telephone systems, as opposed to some kinds of radio relay systems, do not operate in the push-to-talk mode.
	xrint.com /patents/us/3934091 (3450 words)

	Nathan Stratton's Homepage
		Some of the first telephone switches were single-stage space switch (S) formed out of a rectangular array of crosspoints.
		The problem with single-stage space switches is that a large number of crosspoints is required to perform the switching.
		Some vendors of smaller switches suggest the use of several small switches in parallel, but there are many disadvantages to this and this course should be avoided.
	www.robotics.net /papers/switching.html (1036 words)

	TelecomCareers.Net - Dictionary R (Site not responding. Last check: 2007-11-07)
		A part of an automatic switching system that receives and stores signals from a calling device or other sources for interpretation and action, some of which is carried out by the register itself.
		A generic type of switching system in which the call progresses blindly one step at a time through the network under control of a translator and a register into which the originating subscriber has dialed the desired telephone number.
		Within a switching system, the routing to an alternate route trunk group (or trunk subgroup) when all trunks in a prior trunk group (or trunk sub group) are busy.
	www.telecomcareers.net /resources/dictionary/diction_r.htm (1454 words)

	Automatic switching system - Patent 6252846
		As an automatic switching system having a redundant system configuration in order to improve a reliability of the communication network, which is composed of a plurality of automatic switching systems as switching nodes and inter connected by transmission lines to each other, there are known ones such as disclosed in Japanese Patent Laid-open Nos.
		As shown, the automatic switching system 1 is connected to n (n is an integer greater than 2) user terminal equipment 400.sub.1 to 400.sub.n through duplicated transmission lines made of an optical fiber, a metallic cable or the like, e.g.
		The automatic switching system 1 is of the duplicated system arrangement of an ACT system 1a and a STAND-BY system 1b.
	www.freepatentsonline.com /6252846.html (4450 words)

	THG-Inland Telegraph Service (Site not responding. Last check: 2007-11-07)
		The network was based upon a number of fully interconnected zone-switching centres, supplemented by a number of area centres each connected to the appropriate parent-zone switching centre for access to the network.
		A system of dialling codes differed for each exchange area so digits dialled were not uniform over the network.
		Sub post offices, known as telephone-telegraph (TT) offices, would accept incoming telegrams over the phone from a telegraph office for delivery in their area (many grumbles were noted from Postmasters saying "Oh heck, they're miles out of town!") and accept originating telegrams over the counter for onward transmission by phone to their parent telegraph office.
	www.thg.org.uk /telegraph/inland1.htm (789 words)

	Privateline.com: Switching International Calls via Submarine Cable 1964
		A trunk circuit is a control device used to associate a switching system with a transmission facility and to provide supervision of the connection thereafter.
		In the Bell System, many intertoll trunk circuits are provided with guard timing to provide a timed interval at the completion of an outgoing call to allow the release of far end equipment before allowing a trunk circuit to be reselected for a subsequent call.
		European gateway switching machines will use the transit signal as an indication that the call is to be routed to another country instead of to their national network.
	www.privateline.com /circuits/international.html (2807 words)

	Collecting switching system call data - United States Patent 3,944,746
		The present invention relates generally to the field of common control switching systems wherein call connection data is collected from a common control circuit used to perform control functions associated with establishing call connections between calling and called circuits.
		As is referred to under the headings dealing with the programs for scanning and processing switching system data, the exemplary embodiment of the invention is not concerned with the details of what happens after the collection of Initial Entry data from the marker.
		The data leads into the scan unit from the switching system are assigned to certain scan points in the scan unit such that when the same single data lead of all 16 scan multiplexers is selected for reading, then one complete 16-bit data word is read (scanned) from the switching system.
	xrint.com /patents/us/3944746 (18151 words)

	R6000 AUTOMATIC GANG SWITCHING SYSTEM (Site not responding. Last check: 2007-11-07)
		The A/B switch cards and switch controller have been designed for new installations and can also be cascaded from existing ADC 5000 Series switches.
		The R6000 series A/B switch connects port C to port A or port B through latching telecommunication relays.
		Switches can easily be daisy-chained to control multiple units from a single chassis.
	www.perfcomcat.com /oldcat/r6000.html (295 words)

	Data processing network for communications switching system - Patent 4115866
		A toll programming system includes a plurality of processors having individual memories and sharing a common memory for controlling a toll telecommunication switching system by executing a plurality of programs divided in a first and second series.
		In this known system the controllable arrangement is in the form of telecommunication switching equipment and each of the processors is able to execute all of the programs needed to control all the operations required to establish a call communication through said switching equipment, or the like.
		The switching network SN is constituted by a plurality of incoming junctors such as IJ which are connected to a plurality of outgoing junctors such as OJ via a main switching network MSN, the incoming and outgoing junctors being connected to incoming and outgoing trunks such as IT and OT leading to distant exchanges respectively.
	www.freepatentsonline.com /4115866.html (6825 words)

	Strowger - Switching Concepts
		Strowger did not invent the idea of automatic switching; it was first invented in 1879 by Connolly & McTigthe but Strowger was the first to put it to effective use.
		With manual switching systems, there had always been an operator to advise the caller of the current status.
		As mentioned previously, manual switching required an operator for every call and thus was expensive on manpower, however, when first developed, automatic switching systems were comparitively expensive and in the Post-war period (1914 onwards) female labour was cheap, so the advanages of moving to an automatic system were not great.
	www.seg.co.uk /telecomm/automat1.htm (1293 words)

	Welcome to the Official Website of Tripura Police
		In 1990 Automatic Communication System (ACS– computerised data communication) was introduced for faster and speedy point-to-point data communication with District HQrs and a few stations of the West District.
		In 1992 Automatic Message Switching System, an upgraded version of ACS was installed to facilitate better and speedy data communication with all district HQrs, Sub-divisional HQrs along with most of the out lying stations of Tripura.
		In the year 1997 Radio Trunking System was established for better voice communication for the mobiles as well as with a few static stations.
	tripurapolice.nic.in /aradio.htm (483 words)

	The Public Telegraph Service
		The telegram (message) is accepted into the system, transmitted (in one form or another) to the distant end and then delivered by messenger boy, telephoned or even telexed to the recipient.
		The conversion to automatic working was phased into four stages starting with Birmingham [BM] and London North [XN] Zone Switching Centres in the Spring of 1950 through to the Autumn of 1952 for all the Zones and Area Switching Centres.
		To simplify switching, an area numbering scheme was adopted using a combination of letters and numbers.
	www.lightstraw.co.uk /ate/tass/telegraph1.html (627 words)

	Automatic switching system -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		Automatic switching system -- Facts, Info, and Encyclopedia article
		In an automatic switching system, the (Click link for more info and facts about information-transfer transaction) information-transfer transaction is performed without human intervention, except for initiation of the access phase and the disengagement phase by a user.
		In (Transmitting speech at a distance) telephony, it refers to a system in which all the operations required to (A group of things of the same kind that belong together and are so used) set up, supervise, and release connections required for calls are automatically performed in response to signals from a calling device.
	www.absoluteastronomy.com /encyclopedia/A/Au/Automatic_switching_system.htm (100 words)

	History of the Telephone by American Business Telephone and Technologies, Manchester, CT
		His great achievements included an air conditioning system, the "photophone" which was a wireless unit that transmitted speech, seawater to fresh water converting process, experimentation with sending speech and sounds over a beam of light, apparatus called the "vacuum jacket" adding respiratory patients to breathe, and the metal detector.
		One of the greatest technological advancements to the telecommunications industry was the invention of the automatic switching system.
		The first automatic switching systems were known as the Strowger switch, and although they did not completely replace the human operator, their role and importance were dramatically changed.
	www.abtelephone.com /history.htm (1079 words)

	美国专利申请公开说明书 20030022031 - Fuel cell system automatic power switching method and apparatus (Site not responding. Last check: 2007-11-07)
		A fuel cell system includes a fuel cell stack, a battery, and a control system.
		The power circuit includes a battery supply switch responsive to a voltage across the fuel cell stack, and a stack supply switch responsive to an operating state of the fuel cell system.
		The battery supply switch uncouples the battery from an on-board power supply when a voltage across the fuel cell stack exceeds a first threshold voltage and couples the battery to the on-board power supply when the fuel cell stack voltage is less than a second threshold voltage.
	cxp.paterra.com /uspregrant20030022031cn.html (198 words)

	ASCO Two Source Automatic Transfer System
		ASCO two-source systems are designed for automatic switching of loads between the utility source and an alternate source of power.
		ASCO two-source systems include an automatic transfer switch, plus any or all of the following options; automatic engine starting controls, overcurrent protection for both emergency and normal sources, instrument meters, status annunciation, and audible alarm.
		The system shown contains a 1200 ampere closed transition automatic transfer switch with a 1200 ampere utility circuit breaker, multi-purpose meter, reverse power relay, and an alarm horn.
	www.asco.com /Products/pcs/2ats.html (236 words)

	Automatic switching system - Encyclopedia, History, Geography and Biography (Site not responding. Last check: 2007-11-07)
		Automatic switching system - Encyclopedia, History, Geography and Biography
		This page was last modified 14:15, 23 Mar 2005.
		This encyclopedia, history, geography and biography article about Automatic switching system contains research on
	www.arikah.net /encyclopedia/Automatic_switching_system (145 words)

	Cisco - Catalyst 3000 Series Switches
		Cisco's Catalyst 3000 system is a high-performance, stackable switching platform consisting of the Catalyst 3000 series switches and Catalyst 3000 Matrix.
		This switch platform is the first stackable switching architecture to deliver Layer 2 and Layer 3 functions in its stackable software for growing workgroup applications.
		Stacked switches can be managed as one logical entity IP address, overcoming one of the primary obstacles of managing stackable devices.
	www.cisco.com /warp/public/cc/pd/si/casi/ca3000/index.shtml (212 words)

	DMS-100 Switching System
		An account access may leave a log and it's up to the person or system at the other end, or people viewing the report, if the last access time and device is noticed.
		Also, sometimes the data in tables may only be a notepad for office data instead of the switch actually relying on the table for a function.
		This is every command on the system and some type of commands that have subcommands and various other layered program packages that can be accessed on the DMS if your access is enough to warrant this.
	www.darkfall.demon.co.uk /fallen/phreak/!dms-100.htm (2162 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Based entirely on automatic action, this scheme will mainly rely on: a 735 kV shunt reactor switching system (called MAIS); a generation rejection and/or remote load-shedding system (called RPTC); an underfrequency load-shedding system.
		The MAIS system, which is the subject of this paper, will be implemented in 22 substations and is required to control voltage on the system after a severe event.
		Each MAIS system, acting locally, is entirely independent and will close or trip shunt reactors in response to local conditions.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=435403 (260 words)

	Meeting Notes 10 December 1996
		Webmasters resolved to continue pushing for the system originally envisaged and to that end GD and JP agreed to refresh the original round robin scheme as if it was a proposal for the tender, and to submit it for consideration along with the external papers.
		MV noted that the harvest indexing system used a description metatag in preference to the title attribute of an html page, and that therefore use of the description metatag amongst cips needed to be clarified.
		There would be an automatic switching system to change the DNS entry in the event of one server going down.
	www.qub.ac.uk /webmasters/notes/101296.html (1035 words)

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