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US 7,623,671 B2Granted
Narrow directional microphone
AssigneeKabushiki Kaisha Audio-Technica
InventorHiroshi Akino
Life of this patent
Estimating the term…
Abstract
A narrow directional microphone includes an acoustic tube made of a resin film having thousands of minute holes, and a microphone unit attached in a rear end of the acoustic tube. The acoustic tube is made of a resin film having thousands of minute holes and curled up. The minute holes let air in but block droplets.
Claims12
A narrow directional microphone comprising:
- an acoustic tube made of a resin film having thousands of minute holes which let air in but block raindrops, and a microphone unit attached in a rear end of the acoustic tube.
Dependencies are inferred from the claim text.