Delay line


 
 

The term delay line has multiple meanings:

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

  • In electronics and derivative fields such as telecommunications, a delay line is rigorously defined as a single-input-channel device, in which the output channel state at a given instant, t, is the same as the input channel state at the instant t−n, where n is a number of time units, i.e., the input sequence undergoes a delay of n time units, such as n femtoseconds, nanoseconds, or microseconds. (The delay line may have additional taps yielding output channels with values less than n.) In other words, the device introduces a delay of a certain amount of time between its input and output. Specific devices and approaches:
  • A transmission line or equivalent device (such as an analog delay line) used to delay a signal.
  • In computer simulation it can be used as a numerical technique, also called bi-directional delay line or transmission line modelling (TLM) method.
  • In digital logic and digital signal processing, a delay line refers to a sequential logic element in which the output state at a given time n (in samples) is the same as the input was at the time n−L. Delay lines are generally expressed as z-L, where L is the length of the delay in samples. A unit delay (a delay of one sample) is therefore expressed as z-1.
  • In computing, delay line often refers to delay line memory.
  • In neurobiology, delay lines can refer to neurons, the cells that transmit electrical information in the brain. Electrical conduction in neurons is not instantaneous; it is delayed depending on the length of the axon and other properties of the neuron (e.g. myelination). This delay can be used for time sensitive calculations; the canonical example is the calculation of inter-aural time differences in the pons, used for sound localization.
  • An earlier version of this page came from Federal Standard 1037C and from MIL-STD-188.

    ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

    ~ ~ ~ ~ ~ ~ ~ ~ ~ ~


 

Federal Standard 1037C: Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended....

MIL-STD-188: MIL-STD-188 is a series of U.S. military standards relating to telecommunications....


Delay line related Images and Photos (experimental)

NYK Line
NYK Line
NYK Line
NYK Line
Tree Line I
Tree Line I
French Line
French Line
Chorus Line
Chorus Line
French Line
French Line
Tree Line II
Tree Line II
Waving Line I
Waving Line I
Tree Line II
Tree Line II
Italian Line
Italian Line
Line Tracking Robot
Line Tracking Robot
Line of Beauty (DVD)
Line of Beauty (DVD)

~ Table of Content ~

Introduction
 


 

~ Related Subjects ~

General Services Administration (1) - U.S. military standard (1) - Telecommunication (1) - Federal Standard 1037C (1) - MIL-STD-188 (1) - Federal Standard (1) -
 

~ Community ~

History Forum
Come and discuss about History, Civilizations, Historical Events and Figures
History Web-Ring
A community of sites, blogs and forums dedicated to History. Do not hesitate to submit your site.