IRE unit

English

Named after the Institute of Radio Engineers.

IRE unit (plural IRE units)

(television) A unit used in the measurement of composite video signals. A value of 100 IRE is defined to be +714 mV in an analog NTSC video signal.
- 1966, Rodger J. Ross, Television Film Engineering (page 331)
  At the same time the picture blacks may be reproduced at levels as high as 20 or 30 IRE units.

单词	IRE unit
释义	IRE unit English Etymology Named after the Institute of Radio Engineers. Noun IRE unit (plural IRE units) (television) A unit used in the measurement of composite video signals. A value of 100 IRE is defined to be +714 mV in an analog NTSC video signal. 1966, Rodger J. Ross, Television Film Engineering (page 331) At the same time the picture blacks may be reproduced at levels as high as 20 or 30 IRE units.
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