jitter 
jitter
Definition
☆ jit·ter (jit′ər)
noun
an unsteady condition in which there are many small, rapid movements
intransitive verb
- to be unsteady with many small, rapid movements
- Informal to be nervous; have the jitters; fidget
the jitters
Informal a very uneasy, nervous feeling; the fidgets
jitter
Telecom Definition
- Uncertain variation in the timing of a received signal as compared to the timing of the transmitted signal. All signals experience some amount of delay, or latency, as they propagate across a circuit as, even at the speed of light, it takes some amount of time to travel the distance from one point to another. The timing of the signal elements remains consistent, however, barring changes in the length or other physical characteristics of the circuit caused by variations in temperature or other external forces. As devices are added to a circuit, even relatively simple devices such as amplifiers and repeaters performing relatively simple processes, additional delay is introduced, and the potential for variability in delay is increased because of factors such as fluctuations in power sources and faulty internal components. Should variability exceed specified tolerances, the timing of the pulses can be unacceptably irregular, and the receiving device may be unable to interpret the received signal correctly.
- Variability in latency of a block, cell, frame, packet, or other message unit. Data message units can suffer jitter not only due to issues of signal jitter, but also because they may encounter different levels of congestion, which may cause them to spend different amounts of time in queues.These factors, and others, contribute to jitter. Some applications, such as e-mail, are tolerant of jitter, while other applications, such as real-time, uncompressed voice, are highly intolerant of jitter.
- Undesirable rapid or jumpy movement of images, such as those displayed on a television or computer monitor. Jitter can be caused by circuit instability or faulty system components. See also latency, propagation delay, and velocity of propagation (Vp).
jitter
Usage Examples
Object
- frame: It then performs a pattern recognition to identify common features in jittered frames.
Converse of object
- minimize: O.I.S minimizes the jitter from shaky hands that causes many photos to look blurred.
- reduce: Sound Quality 588 maximizes sound quality by reducing jitter to very low levels.
- increase: Significantly increased jitter was present in PPS patients as compared to normal controls at all 5 stimulation frequencies studied.
- get: I am getting vertical jitter on my DVD playback.
- cause: The Nokia N91 and Sony Ericsson W800i Walkman phone are likely to have caused similar jitters among MP3 retailers.
- have: While the movie was on I had to remind myself to breathe sometimes and I had the jitters for ages after the movie finished.
Adjective modifier
- increased: There may be several reasons for the finding of increased jitter with HFS in only 1/3 of PPS patients.
- low: FIFO memory buffer input for the lowest possible jitter from almost any source.
- similar: The Nokia N91 and Sony Ericsson W800i Walkman phone are likely to have caused similar jitters among MP3 retailers.
- mean: Jitter is expressed as percent of mean jitter before edrophonium injection.
- possible: FIFO memory buffer input for the lowest possible jitter from almost any source.
- abnormal: Those PPS patients with abnormal jitter had a significantly longer time since their acute polio.
Preposition: on
- electromyography: Increased jitter on single-fiber electromyography has been noted in other diseases with NMJ pathology ( Stalberg et al.
Noun used with modifier
- wedding: I felt an awful fear when I looked at him, but thought it was just wedding jitters.
- market: Market jitters set in almost immediately, due to City doubts over the new government's economic policies.
Preposition: with
- edrophonium: Thus, this subject was judged to have a significant reduction in jitter with edrophonium in the studied unstable potential.
- HFS: There may be several reasons for the finding of increased jitter with HFS in only 1/3 of PPS patients.
Modifies a noun
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