ABSTRACT For widespread adoption, public security and surveillance systems must be accurate, portable, compact, and real-time, without impeding the privacy of the individuals being observed. Current systems broadly fall into two categories - image-based which are accurate, but lack privacy, and RF signal-based, which preserve privacy but lack portability, compactness and accuracy. Our paper proposes mmSense, an end-to-end portable miniaturised real-time system that can accurately detect the presence of concealed metallic objects on persons in a discrete, privacy-preserving modality. The reflected signal received via receiver 2 (of 3) of the Soli is converted into a range profile by computing 1. INTRODUCTION The difference between the two range profiles shows the potential of using mmWave Radar solutions developed on Frequency Modulated Continuous radars like the soli, for detecting metallic objects. Wave (FMCW) technology have shown promising success through their ability to serve as a capable and versatile basis for computational sensing and short range wireless communication systems [1].

Google has unveiled technology that can read people's body movements to let devices'understand the social context around them' and make decisions. Developed by Google's Advanced Technology and Products division (ATAP) in San Francisco, the technology consists of chips built into TVs, phones and computers. But rather than using cameras, the tech uses radar – radio waves that are reflected to determine the distance or angle of objects in the vicinity. If built into future devices, the technology could turn down the TV if you nod off or automatically pause Netflix when you leave the sofa. Assisted by machine learning algorithms, it would also generally allow devices to know that someone is approaching or entering their'personal space'. Google has unveiled technology that can read people's body movements to let devices'understand the social context around them' and make decisions, such as flashing up information when you walk by or turning down volume on Radar is an acronym, which stands for Radio detection and ranging.

In 2015, Dan Kaufman, the director of the information innovation office at the U.S. Department's fabled DARPA lab, began talking to Google about joining the company in some capacity. Maybe he could work on Android. Or take a job at X, the Alphabet moonshot factory formerly known as Google X. And then another possibility came up: ATAP (Advanced Technology and Projects), a Google research skunkworks that was "just like DARPA, but in Silicon Valley," as he describes it. His reaction: "That sounds awesome!" At the time, ATAP was even led by Regina Dugan, Kaufman's former boss at DARPA. But not long after he arrived as Dugan's deputy, she abruptly left to start a similar group at Facebook.

During a session at Google's I/O 2015 conference headlined by the Advanced Technologies and Projects Group (ATAP), engineers demoed what they called Project Soli, a novel gesture-recognition technology bound for handheld devices. The promise of the tech was that you could interact with things without actually touching them, which ostensibly would open up all manner of new ways of performing tasks. After a little over four years in development, it emerged in the Pixel 4 series as the gesture-detecting Motion Sense. So was it worth the wait? We used the Pixel 4 for a week to put Motion Sense through its paces.

Filings with the FCC provide more details on an anticipated addition to Google's smart home product lineup. As reported by 9to5Google, the filings seem to reveal some features of the yet-to-be-announced Nest mini -- the newest addition to the company's smart speaker lineup, not to be confused the the Google Home Mini. According to images in the filing, the device is wall-mounted and contains a cutout on the side rim of the speaker which is suspected to be a space for a headphone jack -- a feature reportedly being mulled according to prior reports from 9to5Google. A headphone port would allow the device to hook up to external audio sources like a laptop or computer and would also mimic a similar hardware design from the Echo Dot, Amazon's popular smart speaker. It's still unclear whether the cutout is indeed a place for a headphone jack as noted by The Verge which suggests the space could also be the location of the device's mute switch.

After intentionally leaking images of its own device last month, Google preannounced some the features coming to its Pixel 4 smartphone that's set to launch this fall. In a blog post and YouTube video posted Monday, the search giant revealed that the fourth-generation smartphone will have two new features: Face Unlock, which is a take on Apple's Face ID, and Motion Sense, which lets you control the phone using air gestures. Google's facial recognition comes almost two years since Apple first introduced the technology, which iOS customers use to unlock Apple devices and authenticate contactless payments using Apple Pay. Google is following Apple's example, revealing that the Pixel 4 will also use the face unlock tool for mobile payments. "Face unlock works in almost any orientation – even if you're holding it upside down – and you can use it for secure payments and app authentication, too," Google said in a blog post.

There's no better way to express mock sympathy than by playing the "world's smallest violin," but the sad song you mime can now actually be heard. Enterprising minds at creative studio Design I/O have combined machine learning, radar and other technologies so that when you rub your thumb and forefinger together, it actually produces the sound of a violin. Google's Project Soli plays a key role in the magic. Soli is a purpose-built interaction sensor that uses miniature radar to track the motion of the human hand. The sensor and antenna array are packed into an ultra-compact 8mm x 10mm chip.

"We've developed a vision where the hand is the only controller you need," said Ivan Poupyrev, a technical program lead at Google's Advanced Technology and Projects (ATAP) group. Basically, Google is trying to create a whole new gesture language for every device in your home. After rolling out a Project Soli alpha developer kit last year, Google selected 60 developers from a pool of 180 applicants to show off how their implementations. One group used Soli to used it to identify materials like copper, while another used it for 3D imaging. The coolest experiment, though, was using it as an in-car remote control. Imagine using gesture controls in your car by just having to raise your fingers from the steering wheel a bit.