A functional unit that converts the coded representation of a character into the graphic representation of the character for display.

Preservation of a character during processing, storage, and transmission.

In a communications system, the total number of unit intervals required to transmit any given character, including synchronizing, information, error checking, or control characters, but not including signals that are not associated with individual characters.
Note: An example of a time interval that is excluded when determining character interval is any time added between the end of a stop signal… (Read More →)

The identification of characters by automatic means.

1. A finite set of different characters that is complete for a given purpose.
Note: A character set may or may not include punctuation marks or other symbols.
2. An ordered set of unique representations.
Note: Examples of character sets include the 26 letters of the English alphabet, Boolean characters 0 and 1, the 128 ASCII characters, and International Telegraph… (Read More →)

The preservation of the exact number of characters that are originated in a message in the case of message communications, or per unit time, in the case of a user-to-user connection.
Note: Character-count integrity is not the same as character integrity, which requires that the characters delivered are, in fact, exactly the same as they were originated.

Pertaining to control of start-stop teletypewriter equipment in which a device is stepped one character at a time.
Note: The step interval is equal to or greater than the character interval at the applicable signaling rate.

In telegraphy, the distortion caused by transients that, as a result of previous modulation, are present in the transmission channel.
Note: Characteristic distortion effects are not consistent. Their effects on a given signal transition are dependent upon transients remaining from previous signal transitions.

A frequency which can be easily identified and measured in a given emission. A carrier frequency may, for example, be designated as the characteristic frequency. [NTIA] [RR]

1. The impedance of a circuit that, when connected to the output terminals of a uniform transmission line of arbitrary length, causes the line to appear infinitely long.
Note 1: A uniform line terminated in its characteristic impedance will have no standing waves, no reflections from the end, and a constant ratio of voltage to current at a given frequency… (Read More →)