semaphore background

semaphore

/ˈsɛməfɔː/ /ˈsɛməˌfɔɹ/

Illustration semaphore - Image 1

noun

セマフォ, 信号機

Any equipment used for visual signalling by means of flags, lights, or mechanically moving arms, which are used to represent letters of the alphabet, or words.

Examples :

"The construction crew used a semaphore with brightly colored flags to guide the crane operator. "

建設作業員は、クレーンオペレーターを誘導するために、鮮やかな色の旗を使った信号機を使用しました。

communication technology nautical signal machine military device

Illustration semaphore - Image 1

noun

手旗信号

A visual system for transmitting information using the above equipment; especially, by means of two flags held one in each hand, using an alphabetic and numeric code based on the position of the signaller's arms; flag semaphore.

Examples :

"The sailors used semaphore to send a message from ship to shore because their radio was broken. "

船乗りたちは、無線が故障したため、手旗信号を使って船から岸にメッセージを送った。

communication technology signal nautical military system sign writing

Illustration semaphore - Image 1

noun

セマフォ

A bit, token, fragment of code, or some other mechanism which is used to restrict access to a shared function or device to a single process at a time, or to synchronize and coordinate events in different processes.

Examples :

"The thread increments the semaphore to prevent other threads from entering the critical section at the same time."

スレッドは、他のスレッドが同時にクリティカルセクションに入るのを防ぐために、セマフォをインクリメントします。

computing technology process signal communication device system function

Illustration semaphore - Image 1

verb

手旗信号を送る, 信号を送る

To signal using, or as if using, a semaphore, with the implication that it is done nonverbally.

Examples :

"From across the noisy playground, the teacher semaphoreed to the children to line up. "

騒がしい遊び場を隔てて、先生は子供たちに並ぶように手旗信号を送った。

communication signal nautical military