Xiaomi phone replaces proximity sensor with ultrasound software: Page 2 of 2

October 26, 2016 //By Julien Happich
Xiaomi phone replaces proximity sensor with ultrasound software
Last January, Norwegian startup Elliptic Labs (Oslo, Norway) was releasing its software-based ultrasound proximity sensing system, Beauty, which leverages the existing microphone and speakers of a smartphone to remove hardware-based proximity sensors (often infrared-based).

In order to embed the speaker within the smartphone's body, behind the screen, Elliptic Labs helped Xiaomi co-design the sound transceiver inside the phone, so the sound would radiate through, in the front, told us Guenael Strutt, VP Product Development at Elliptic Labs.

"We have to consider the geometry of the phone and there are a series of design requirements following some patented acoustic waveguide principles, so the ultrasonic transducer radiates towards the front of the phone", Strutt said.

This is an important design win for Elliptic Labs, Xiaomi aims the new phone at the Asian market, last year the smartphone OEM sold more than 70 million phones.

“We are thrilled to have our ultrasound proximity software featured in the new smartphone from world leader Xiaomi. Elliptic Labs is the only ultrasound proximity feature vendor designed into a tier-1 mobile handset,” said Laila Danielsen, CEO of Elliptic Labs. “This is a significant validation of our Elliptic Labs’ value proposition and we are confident this will pave the way for additional design wins for our innovative ultrasound proximity product in the coming quarters.”


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