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US 10,375,494 B1Granted
Microphone test device
AssigneePrimax Electronics Ltd.
InventorJun-Hsueh Chou
Life of this patent
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Abstract
A microphone test device is provided to test a sound-receiving function of an under-test microphone. The microphone test device includes a test platform, a standard speaker module, a fixing mechanism and a pedestal. A sleeve of the standard speaker module includes a cone-shaped channel. A test acoustic wave from the standard speaker is centralized by the cone-shaped channel. Consequently, the interference of the acoustic wave reflection phenomenon is effectively reduced.
Claims18
A microphone test device for testing an under-test microphone, the microphone test device comprising:
- a test platform;
- a standard speaker module comprising:
- a standard speaker generating a test acoustic wave;
- a sleeve comprising a first accommodation space and a cone-shaped channel, wherein the standard speaker is accommodated within the first accommodation space, and the cone-shaped channel has a first opening and a second opening, wherein the first opening and the second opening are opposed to each other, and the cone-shaped channel is in communication with the first accommodation space through the first opening;
- and
- a standard microphone arranged beside the second opening;
- a fixing mechanism, wherein the standard speaker module is fixed on the test platform through the fixing mechanism;
- and
- a pedestal disposed on the test platform, wherein the under-test microphone is fixed on the pedestal,
- wherein the second opening faces a sound-receiving part of the under-test microphone, and the test acoustic wave is transferred to the sound-receiving part through the first opening, the cone-shaped channel and the second opening sequentially.
7 more elements
Dependencies are inferred from the claim text.