For two connected exchanges in a communications network, a double-ended synchronization ( also called double-ended control ) is a synchronization control scheme in which the phase error signals used to control the clock at one telephone exchange are derived by comparison with the phase of the incoming digital signal and the phase of the internal clocks at both exchanges.

In a wired system, the secondary clocks are ‘ hard-wired ’ to the master clock with their own network of wiring.

This dedicated wiring consists of 3 wires and requires that all secondary clocks be connected to this network in order to receive corrections from the master clock.

This term is also generally used in the Telco and Cisco equipment context to designate a network device, such as terminals, personal computers but also routers and bridges, that's unable or configured not to generate clock signals.

IceWM has an optional, built-in taskbar with menu, tasks display, network and CPU meters, mail check and configurable clock.

Central sync generators usually derive their timing from an atomic clock, either using network time, or GPS.

Such changes could be caused by restoring an older version of a source file, or when a network filesystem is a source of files and its clock or timezone is not synchronized with the machine running Make.

Channel also, unusually would announce the local temperature over the clock prior to the following programme, a practice not used elsewhere in the ITV network.

The clock signal must be propagated with a clock distribution network.

Nodes on the network remained in sync using clock recovery.

However, the performance usually is reduced less than the reduction of clock speed because the performance often is limited by other bottlenecks: the hard disk, GPU, disk controller, Internet, network, etc.

The clock distribution network inside the CPU carries that clock signal to all the parts that need it.

I think you had a lot of people in the network executive suites who were convinced 11 o ' clock was just too late for people to stay up and watch television.

** Starting with Windows Vista, the taskbar notification area is split into two areas ; one reserved for system icons including clock, volume, network and power.

Rather than sign off for the early hours of the morning ( as was standard practice until the early 1970s in larger markets and until the mid 1980s in smaller ones ), TV stations now fill the time with syndicated programming, reruns of prime time television shows or the local late news o ' clock news, or 30-minute advertisements, known as infomercials, and in the case of CBS and ABC, overnight network news programs.

During the Cold War, the British Telecom speaking clock network was designed to be used in case of nuclear attack to broadcast messages from Strike Command at RAF High Wycombe to HANDEL units at regional police stations.

In Germany, a network of organisers was established, and these volunteers worked around the clock to make priority lists of those most imperilled: teenagers who were in concentration camps or in danger of arrest, Polish children or teenagers threatened with deportation, children in Jewish orphanages, children whose parents were too impoverished to keep them, or children with a parent in a concentration camp.

A time server is a server computer that reads the actual time from a reference clock and distributes this information to its clients using a computer network.

The time reference used by a time server could be another time server on the network or the Internet, a connected radio clock or an atomic clock.

Products acquired and sold through Audiovox ’ s nationwide distribution network include digital clock radios, camcorders and voice recorders, and MP3 players.

Somitogenesis is thought to occur via a “ clock and wavefront ” model, in which largely cell autonomous oscillations in a network of genes and gene products causes cells to oscillate between a permissive and a non-permissive state in a consistently timed fashion like a clock.

Higher clock rates in increasingly complex CPUs make it more difficult to keep the clock signal in phase ( synchronized ) throughout the entire unit.

Non-coherent modulation methods do not require a receiver reference clock signal that is phase synchronized with the sender carrier wave.

In his famous work on special relativity in 1905, Albert Einstein predicted that when two clocks were brought together and synchronized, and then one was moved away and brought back, the clock which had undergone the traveling would be found to be lagging behind the clock which had stayed put.

If the signals are too long, too short, poorly synchronized with the system clock, too high, too low, too noisy, or too slow to change, or have too much undershoot or overshoot, this can be observed from the eye diagram.

* A station having a clock synchronized by a remote master station in a navigation system

Auto Sync allows users to specify criteria such as recently added music or highest rated songs, by which media will be automatically synchronized with the portable device and other advanced features like setting the clock on the portable device automatically, communicating with the device to retrieve the user's preferences.

* Build an internet synchronized sidereal clock

The output of each flip-flop only changes when triggered by the clock pulse, so changes to the logic signals throughout the circuit all begin at the same time, at regular intervals, synchronized by the clock.

Asynchronous sequential logic is not synchronized by a clock signal ; the outputs of the circuit change directly in response to changes in inputs.

Therefore the only timing problems are due to " asynchronous inputs "; inputs to the circuit from other systems which are not synchronized to the clock signal.

SDRAM has a synchronous interface, meaning that it waits for a clock signal before responding to control inputs and is therefore synchronized with the computer's system bus.

A radio clock or radio-controlled clock is a clock that is synchronized by a time code bit stream transmitted by a radio transmitter connected to a time standard such as an atomic clock.

Such a clock may be synchronized to the time sent by a single transmitter, such as many national or regional time transmitters, or may use multiple transmitters, like the Global Positioning System.

One of the key difficulties of implementing this technique is that the receiver must be properly synchronized to align the local clock with the beginning of each symbol.

These secondary system buses usually run at speeds derived from the front-side bus clock, but are not necessarily synchronized to it.

External interrupts have to be synchronized with the four clock instruction cycle, otherwise there can be a one instruction cycle jitter.

It is special in that it stops for just over a second at the end of each minute, to wait for a signal from the master clock which sets it going again — thus keeping all station clocks synchronized.

The duration of each pulse ( ranging from 0. 9 to 1. 2 seconds, with 0. 2 second blank intervals between each pulse ) differed in a fixed pattern, and repeated every ten seconds ; the 10-second pattern was common to all 8 stations and synchronized with the carrier phase angle, which itself was synchronized with the local master atomic clock.

Ironically, one of the benefits to come out of the EISA standard was a final codification of the standard to which ISA slots and cards should be held ( in particular, clock speed was fixed at an industry standard of 8. 33 MHz ).

The unit was redefined in terms of the tropical year at 1900. 0 instead of the sidereal year ; and the standard second was defined first as 1 / 31556925. 975 of the tropical year at 1900. 0, and then as the slightly modified fraction 1 / 31556925. 9747 instead, finally being redefined in 1967 / 8 in terms of the cesium atomic clock standard ( see below ).

Royal Observatory, Greenwich | Greenwich clock with standard measurements

More low-level control is possible with the statement, which takes the arguments of a frequency in hertz and a length in clock ticks for the standard internal PC speaker in IBM machines.

Though the civil clock incorporates local adoptions of various conventions such as time zones, standard times and daylight saving, these have no place in the Jewish scheme.

The engineer typically sets the station clocks to standard local time each day, by listening to WWV or WWVH ( see atomic clock ).

A caesium standard or caesium atomic clock is a primary frequency standard in which electronic transitions between the two hyperfine ground states of caesium-133 atoms are used to control the output frequency.

The master atomic clock ensemble at the United States Naval Observatory | U. S. Naval Observatory in Washington D. C., which provides the time standard for the U. S. Department of Defense.

The U. S. Naval Observatory master clock is one of the two standard time and frequency references for the U. S. Government in accordance with Federal Standard 1002-A.

The other standard time and frequency reference for the U. S. Government is the National Institute of Standards and Technology ( NIST ) master clock.

A standard clock comprises a frequency standard, a device to count off the cycles of the oscillation emitted by the frequency standard, and a means of displaying or outputting the result.

The carrier of time signal transmitters, LORAN-C transmitters and of several longwave and mediumwave broadcasting stations is derived from an atomic clock and can be therefore used as frequency standard.

The term " principal clock " should not be confused with, or used as a synonym for, the term " primary frequency standard.

* A master clock used as a timekeeping standard to regulate or compare the accuracy of other clocks

A rubidium standard or rubidium atomic clock is a frequency standard in which a specified hyperfine transition of electrons in rubidium-87 atoms is used to control the output frequency.

Commercial rubidium clocks are less accurate than cesium atomic clocks which serve as primary frequency standards, so the rubidium clock is a secondary frequency standard.

This ephemeris second was the standard for the SI second from 1956 to 1967, and it was also the source for calibration of the caesium atomic clock ; its length has been closely duplicated, to within 1 part in 10 < sup > 10 </ sup >, in the size of the current SI second referred to atomic time.

Prior to the introduction of standard time, each municipality around the civilized world set its official clock, if it had one, according to the local position of the Sun ( see solar time ).