noun
rise time; launch time; release time
Technical computing term for the time required for a signal, system, or program to transition from a low to a high state, or to start up.
この回路の立上がり時間は約5ナノ秒です。
The rise time of this circuit is about 5 nanoseconds.
ソフトウェアの立上がり時間を短縮するために、起動プロセスを見直した。
We reviewed the startup process to reduce the software's launch time.
Opposite term: fall time, the time for a signal to transition from high to low.
Compound of 立上がり (たちあがり, 'rise' or 'startup') and 時間 (じかん, 'time').