The detecting optics collects scattered light on a photodetector, which then generates a pulse signal.

Something exterior to signal a controller on the bridge, through the regular optical cables, and set off a pulse signal?

Dolphins communicate via clicks and whistles, and whales use low frequency moans or pulse signals.

Moments later, Vologsky received a two-tone pulse signal over his headphones, followed by a brief message.

Bioluminescence produced by the luciferin-luciferase reaction was amplified and output as the count rate (cpm) after converting pulse signals.

Maybe destructive interference built up at the main nodes because that's where the pulse signals met each other ... maybe.

The voice was merely a pulse electronic signal deciphered by the communications systems.

"We broke the pulse signal," he said proudly.

As soon as we get a reading on those alien pulse signals we'll plan the next step.

According to Discover magazine, Fullerton's ultra-wideband technology is a method of transmitting pulse signals at low levels across an ultra-wide frequency range.