According to filings, Google took control of the startup back in August and then subsequently shut down the company's website.
A spokesperson for Google refused to comment on the price of the acquisition or any further details.
Redux's said in 2017 that its patented bending wave techniques could allow it to turn a smartphone screen into a high-quality speaker. The same controlled vibrations could also be used to deliver haptic feedback through the display. Redux is able to turn screens into a speakers by vibrating the screen itself.
Redux is also developing technologies that add haptic feedback on mobile displays.
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The proposed legislation will need a majority vote of all 297 members of the National Assembly in order to ban trading outright. He added that it was a misleading idea that virtual currency trades contribute to the development of blockchain technology.
So far, Redux has only been able to use its technologies inside PCs and some auto infotainment systems - but that could be about to change. With Google's acquisition, that may change soon. The Pixel 2 in particular had very thick bezels that's very much the same size as its predecessor.
This would free up space for other components, such as larger batteries or a better cameras, in Google products such as Pixel phones.
At CES 2018, Google mainly focused on promoting its smart speakers and its new line of Smart Display devices, its direct competitor to the Amazon Echo Show.
It is unclear what work the Redux team will do for Google, or already has been doing, but it's possible that they could be working to use the technology to improve the sound quality of Google's own smartphones.