Glossary: U
UHF
Ultrahigh frequency. One of the television signals for broadcasting in the United States per FCC standards. UHF is the frequency between very high frequency (VHF) and super high frequency (SHF).
U-matic
See 3/4-inch U-matic.
uncompressed video
A recorded or digitized video stream that is not processed by a data compression scheme. The video signal remains uncompressed at all stages of the process: input, storage, and output. Uncompressed video conforms to the ITU-R 601 standard.
Undo/Redo
The process that allows a return to the state of the edit immediately preceding the last edit or a repeat of an "undo" edit.
up cut
In editing, to cut the end of the previous scene, often by mistake. In general, to cut short.
user bits
The portion of the timecode data available for encoding data chosen by the user; for example, footage count or Keykode numbers.
U-type VTR
A recorder format that uses 3/4-inch videotape.

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