Motorola Solutions, Inc.

Teik Seng Saw

Cheah Heng Tan

Friedrich J Bollmann

Kheng Shiang Teh

Huoy Thyng Yow

Peter William Hilding Svendsen

A housing having a port for reducing wind-induced noise in a communication device. The housing includes a first channel, a second channel, and a ridge between the first and second channels. The housing further includes a tunnel extending through the ridge, which tunnel connects the first and second channels. The housing further includes a microphone port beneath the ridge, which microphone port is connected to the tunnel and connects the tunnel to a microphone cavity in the housing.

Slim-tunnel wind port for a communication device

An intrinsically safe audio circuit and intrinsically safe portable two-way radio device meet conventional audio output requirements and intrinsically safe design limitations by separating the speaker coil of the device's speaker into separate coils to limit the energy storage possible in any one of the coils. Each separate coil is driven by one of several different audio power amplifiers that each output a substantially identical signal, and each of which are current limited.

Growing community of inventors

Kedah, Malaysia

Teik Seng Saw