Glossary:

ATIS Telecom Glossary

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line-to-line correlation

In facsimile, the correlation of object information from scanning line to scanning line.
Note: Line-to-line correlation is used in two-dimensional encoding.

linear analog synchronization

Synchronization in which the functional relationships used to obtain synchronization are of simple proportionality. Synonym linear analog control.

linear combiner

A diversity combiner in which the combining consists of simple addition of two or more signals.

linear device

A device for which the output is, within a given dynamic range, linearly proportional to the input.

linear key

In video technology and image processing, a process for the selective overlay of one video image upon another, as through chroma key.
Note: Control of the ratio of foreground to background determined by the specifications derived from luminance information, and provided in the linear key data. Ratios to be applied are carried for each picture element in the alpha channel.… (Read More →)

linear polarization

Of an electromagnetic wave, confinement of the E-field vector or H-field vector to a given plane.
Note: Historically, the orientation of a polarized electromagnetic wave has been defined in the optical regime by the orientation of the electric vector, and in the radio regime, by the orientation of the magnetic vector. Synonym plane polarization.

linear predictive coding (LPC)

A method of digitally encoding analog signals, which method uses a single-level or multilevel sampling system in which the value of the signal at each sample time is predicted to be a linear function of the past values of the quantized signal.
Note: LPC is related to adaptive predictive coding (APC) in that both use adaptive predictors. However, LPC uses… (Read More →)

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