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Communications

T-Mobile, Comcast Turn on Call Verification Between Networks in Latest Robocall Fight (usatoday.com) 58

pgmrdlm shares a report: Calls between T-Mobile users and Comcast's Xfinity Voice home subscribers will now be "verified," the latest move in the ongoing fight against robocalls. The two companies announced Wednesday that they have launched cross-network verification, allowing users to know that the calls they are receiving is from an actual person and not a spammer or robocaller.

They use a handoff system recommended by the FCC where the caller's network verifies that a legitimate call is being made with a "digital signature." The recipient's network then confirms the signature on its side. A number of major wireless and traditional home voice providers have pledged support for the verification method, including Verizon, AT&T, Sprint, Charter, Cox and Vonage, with several announcing plans to roll out or test the feature in 2019.

Microsoft

Microsoft Is Jumping Onto the Wireless Earbud Bandwagon, Says Report (arstechnica.com) 38

According to a report by Brad Sams at Thurrott, Microsoft is going to expand its range of audio hardware with the introduction of a set of wireless earbuds. They will accompany the Surface Headphones, a premium-priced pair of wireless headphones that Microsoft released last year. Ars Technica reports: Microsoft has shipped earbuds before: the Zune media player came with earbuds with a feature that sounds simple but is actually ingenious: the earbuds were magnetic and would stick together back to back. The result? Much less cable tangling when you put them in your pocket or bag. Surface Headphones seem to be competitive with other noise-cancelling over-the-ear headphones: their wireless range is great, the noise cancelling is solid, and their volume and noise-cancelling dials are a joy to use, but their battery life and Bluetooth audio standard support are both weak. As such, Microsoft is not totally without experience in this area and has shown that it can engineer thoughtful, compelling designs. How the putative earbuds will stand out from the crowd remains to be seen, of course.

The existing Surface Headphones were codenamed Joplin, raising the question: Janis or Scott? The earbuds make the answer to that question clear; they're apparently codenamed Morrison, as in Jim, meaning that the over-the-ear headphones are clearly named for Janis. Sams says that "Surface Buds" has been mooted as their retail name, with a possible launch in 2019.

Bug

New York City Has a Y2K-Like Problem, and It Doesn't Want You To Know About It (nytimes.com) 119

On April 6, something known as the GPS rollover, a cousin to the dreaded Y2K bug, mostly came and went, as businesses and government agencies around the world heeded warnings and made software or hardware updates in advance. But in New York, something went wrong -- and city officials seem to not want anyone to know. [Editor's note: the link may be paywalled; alternative source] New submitter RAYinNYC shares a report: At 7:59 p.m. E.D.T. on Saturday, the New York City Wireless Network, or NYCWiN, went dark, waylaying numerous city tasks and functions, including the collection and transmission of information from some Police Department license plate readers. The shutdown also interrupted the ability of the Department of Transportation to program traffic lights, and prevented agencies such as the sanitation and parks departments from staying connected with far-flung offices and work sites. The culprit was a long-anticipated calendar reset of the centralized Global Positioning System, which connects to devices and computer networks around the world. There has been no public disclosure that NYCWiN, a $500 million network built for the city by Northrop Grumman, was offline and remains so, even as workers are trying to restore it.

City officials tried to play down the shutdown when first asked about it on Monday, speaking of it as if it were a routine maintenance issue. "The city is in the process of upgrading some components of our private wireless network," Stephanie Raphael, a spokeswoman for the Department of Information Technology and Telecommunications, said in an email on Monday. She referred to the glitch as a "brief software installation period." By Tuesday, the agency acknowledged the network shutdown, but said in an emailed statement that "no critical public safety systems are affected." Ms. Raphael admitted that technicians have been unable to get the network back up and running, adding, "We're working overtime to update the network and bring all of it back online." The problem has raised questions about whether the city had taken appropriate measures to prepare the network for the GPS rollover.

Iphone

Why Tens of Thousands of Perfectly Good, Donated iPhones Are Shredded Every Year (vice.com) 132

An anonymous reader quotes a report from Motherboard: Tens of thousands of perfectly usable iPhones are scrapped each year by electronics recyclers because of the iPhone's "activation lock," according to a new analysis paper published Thursday. Earlier this year, we published a lengthy feature about the iPhone's activation lock (also called iCloud lock informally), an anti-theft feature that prevents new accounts from logging into iOS without the original user's iCloud password. This means that stolen phones can't be used by the person who stole it without the original owner's iCloud password (this lock can also be remotely enabled using Find My iPhone.) The feature makes the iPhone a less valuable theft target, but it has had unintended consequences, as well. iCloud lock has led to the proliferation of an underground community of hackers who use phishing and other techniques to steal iCloud passwords from the original owner and unlock phones. It's also impacted the iPhone repair, refurbishing, and recycling industry, because phones that are legitimately obtained often still have iCloud enabled, making that phone useless except for parts.

Between 2015 and 2018, the Wireless Alliance, the recycling company in question, collected roughly 6 million cell phones in donation boxes it set up around the country. Of those, 333,519 of them were iPhones deemed by the company to be "reusable." And of those, 33,000 of them were iCloud locked and had to be stripped for parts and scrap metal. Last year, a quarter of all reusable iPhones it collected were activation locked. Allison Conwell, a coauthor of the CoPIRG report, told me in a phone call that the Wireless Alliance's findings show that many people donate their devices intending for them to be reused, but they're scrapped instead. In her paper, Conwell suggests that Apple should work with certified recyclers to unlock phones that have been legitimately donated (a survey of random devices conducted by the Wireless Alliance found that more than 90 percent of them had not been reported lost or stolen.) The paper suggests that Apple could either unlock phones that have not been reported lost or stolen for 30 days, or affirmatively ask users whether they had donated their previous phone and unlock it that way.

Communications

White House, FCC Unveil 5G Push and $20B Fund For Rural Broadband (cnet.com) 117

The White House on Friday will unveil a new 5G push to position the US ahead of global rivals in the race to deploy the next-generation wireless technology. President Donald Trump and Federal Communications Chairman Ajit Pai will announce new airwaves auctions and plans to spend $20.4 billion over 10 years on rural broadband. From a report: The FCC will auction off three segments of millimeter-wave spectrum -- which can offer insane data speeds but has limited range -- for commercial use. The auction is scheduled for December, FCC Chairman Ajit Pai said on a conference call with reporters ahead of the White House event. He said the FCC plans to auction off 3,400 MHz of spectrum in three different high-frequency bands. "This will be the largest spectrum auction in American history," he said. Pai went onto say that this auction, along with others planned for the future, are putting the US on a good path. "The US is well-positioned to take a lead in 5G," he said.

The FCC is also announcing the Rural Digital Opportunity Fund. The agency plans to reallocate $20.4 billion from its Universal Service Fund over the next 10 years to subsidize eligible companies to build out broadband infrastructure in underserved areas. The money will be allocated to internet service providers that can provide a minimum of 25 megabit per second downloads in areas that are currently in need of connectivity, Pai said. He added that the new infrastructure will also help bring 5G to these rural areas. "There are a number of startups that are working on millimeter wave technology to bring 5G to rural America," he said on the call.

Security

Dragonblood Vulnerabilities Disclosed in Wi-Fi WPA3 Standard (zdnet.com) 46

Two security researchers disclosed details this week about a group of vulnerabilities collectively referred to as Dragonblood that impact the Wi-Fi Alliance's recently launched WPA3 Wi-Fi security and authentication standard. From a report: If ever exploited, the vulnerabilities would allow an attacker within the range of a victim's network to recover the Wi-Fi password and infiltrate the target's network. In total, five vulnerabilities are part of the Dragonblood ensemble -- a denial of service attack, two downgrade attacks, and two side-channel information leaks.

While the denial of service attack is somewhat unimportant as it only leads to crashing WPA3-compatible access points, the other four are the ones that can be used to recover user passwords. Both the two downgrade attacks and two side-channel leaks exploit design flaws in the WPA3 standard's Dragonfly key exchange -- the mechanism through which clients authenticate on a WPA3 router or access point. In a downgrade attack, Wi-Fi WPA3-capable networks can be coerced in using an older and more insecure password exchange systems, which can allow attackers to retrieve the network passwords using older flaws.

Television

T-Mobile Rebrands Layer3 Service as 'TVision Home', Inks Deal To Add Amazon Prime Video (variety.com) 29

T-Mobile today unveiled a new name for its Layer3 TV internet television service -- TVision Home -- with enhanced features, and announced a deal with Amazon to add Prime Video to the service later in 2019. From a report: TVision Home will be available starting April 14 in eight markets (the same areas Layer3 TV has already been available): Chicago, Dallas-Fort Worth, Los Angeles, New York City, Philadelphia, San Francisco, Washington D.C., and Longmont, Colo. It's not a skinny bundle: TVision Home starts at $90 per month, which includes more than 150 channels, local broadcast stations and regional sports networks, as well as 15,000 VOD titles. Premium TV packages like HBO and Showtime are extra. In addition, TVision Home users must pay a $10 monthly set-top fee per connected TV. (Actually, the regular price of TVision Home for non-T-Mobile wireless customers is $99.99 per month, but the carrier is including a $9.99-per-month discount to all new subs for a limited time.)
The Internet

Are America's Big Telecom Companies Suppressing Fiber? (salon.com) 446

Salon just published a new interview with Susan Crawford, the author of "Fiber: The Coming Tech Revolution -- And Why America Might Miss It." Crawford has spent years studying the business of these underground fiber optic cables that make fast internet possible. As it turns out, the internet infrastructure situation in the United States is almost hopelessly compromised by the oligopolistic telecom industry, which, due to lack of competition and deregulation, is hesitant to invest in their aging infrastructure... This is going to pose a huge problem for the future, Crawford warns, noting that politicians as well as the telecom industry are largely inept when it comes to prepping us for a well-connected future...

"The decay started in 2004 when -- maybe out of gullibility, maybe out of naivety, maybe out of calculation -- then-chairman of the FCC, Michael Powell, now the head of cable association -- was persuaded that the telcos would battle it out with the cable companies, that their cable modem services would battle it out with wireless, and all of that competition would do a much better job than any regulatory structure could at ensuring that every American had a cheap and fantastic connection of the internet. That's just turned out that's just not true. Since then, he deregulated the entire sector -- and as a result, we got this very stagnant status quo where in most urban areas -- usually the local cable monopoly has a lock in the market and can charge whatever it wants for whatever type of quality services they're providing, leaving a lot of people out."

"Because Americans don't travel," she adds, "you don't get the sense of what a third-world country the U.S. is becoming when it comes to communications."
Cellphones

New Apps Fight Robo-Calls By Pretending To Be Humans (nola.com) 77

"While lawmakers debate what to do about the roboscourge, engineers have cooked up some clever ways to make bots work for us, not against us," writes the Washington Post, taking a look at apps like the $4-per-month RoboKiller -- which offers malicious "answer bots": They're voicemail messages that try to keep robots and human telemarketers on the line, listening to nonsense. Answer bot options range from Trump impersonators and extended coughing sessions to someone doing vocal exercises. Even better, RoboKiller will send you an often-hilarious recording of the interaction. (It only uses these recordings when it's very sure it's a spam call.)

Another service, called Jolly Roger, doesn't sell itself as a robocall blocker but takes this auto-generated annoyance idea a step further by actively trying to game the spammers' systems, such as when to press 1 to speak to a human. It calls this tech "artificial stupidity." It costs $11.88 per year.

It's possible you're better off not engaging with a robocall in the hopes the dialer with decide the line is dead. And it's also not clear how much these actually cost the people placing robocalls. But any time robocallers spend with your bot might be minutes they're not calling someone else, so you can think of it as community service.

I'm also not sure this does any good -- but the Post's article also includes a run-down of other robocall-blocking services available from both wireless carriers and independent companies. It recommends starting with the free YouMail app, which collates data from 10 million registered users to determine which calls to block -- and in addition, "tries to trick known robocallers into taking you off their lists by playing them the beep-beep-beep sound of a dead line."

If you live in America, you can also add your phone number to the Federal government's official "Do not call" registry. "It won't help much," writes the Post, "but it only takes 30 seconds so why not?"
Businesses

Airbnb Guest Found Hidden Surveillance Camera By Scanning Wi-Fi Network (arstechnica.com) 99

An anonymous reader quotes a report from Ars Technica: A New Zealand family that booked an Airbnb in Ireland recently discovered an undisclosed camera in the living room, and the family says that Airbnb initially cleared the host of any wrongdoing before finally banning the offender from its platform. "Once the family had unpacked, Andrew Barker, who works in IT security, scanned the house's Wi-Fi network," CNN reported today. "The scan unearthed a camera and subsequently a live feed. From the angle of the video, the family tracked down the camera, concealed in what appeared to be a smoke alarm or carbon monoxide detector." Nealie Barker posted an image on Facebook showing the location of the camera in the living room and a shot of the family from the sneaky video feed.

Based on the photo, the video of the Barkers seems to have been taken on March 3 and was viewable on the local Wi-Fi network at 192.168.0.4/video/livemb.asp. The family relocated to a hotel and contacted both Airbnb and the property host. The host initially hung up but later called back and told them, "The camera in the living room was the only one in the house," CNN wrote. It's not clear whether the host was recording the video, whether he was capturing audio, whether he was monitoring it remotely in real time, or whether he was using it for anything more than monitoring guests. [...] Airbnb temporarily suspended the listing and promised to investigate, CNN wrote. But when Barker contacted Airbnb again two weeks later, "the company told her that the host had been 'exonerated,' and the listing reinstated." Airbnb finally banned the host after Nealie Barker posted about the disturbing incident on Facebook on Monday this week. Barker's Facebook post said that Airbnb's "investigation which didn't include any follow-up with us exonerated the host, no explanation provided," and that "the listing (with hidden camera not mentioned) is still on Airbnb."
Airbnb said in a statement to Ars Technica: "Our original handling of this incident did not meet the high standards we set for ourselves, and we have apologized to the family and fully refunded their stay."

Airbnb's policy states that hosts must disclose "any type of surveillance device" in listings, "even if it's not turned on or hooked up." Cameras are allowed in certain spaces if they are disclosed, but Airbnb "prohibit[s] any surveillance devices that are in or that observe the interior of certain private spaces (such as bedrooms and bathrooms) regardless of whether they've been disclosed. [...] If a host discloses the device after booking, Airbnb will allow the guest to cancel the reservation and receive a refund. Host cancellation penalties may apply."
Democrats

House Democrats Refuse To Weaken Net Neutrality Bill, Defeat GOP Amendments (arstechnica.com) 127

An anonymous reader quotes a report from Ars Technica: Democrats in the U.S. House of Representatives yesterday rejected Republican attempts to weaken a bill that would restore net neutrality rules. The House Commerce Committee yesterday approved the "Save the Internet Act" in a 30-22 party-line vote, potentially setting up a vote of the full House next week. The bill is short and simple -- it would fully reinstate the rules implemented by the Federal Communications Commission under then-Chairman Tom Wheeler in 2015, reversing the repeal led by FCC Chairman Ajit Pai in 2017.

Commerce Committee Republicans repeatedly introduced amendments that would weaken the bill but were consistently rebuffed by the committee's Democratic majority. "The Democrats beat back more than a dozen attempts from Republicans to gut the bill with amendments throughout the bill's markup that lasted 9.5 hours," The Hill reported yesterday. Republican amendments would have weakened the bill by doing the following: Exempt all 5G wireless services from net neutrality rules; Exempt all multi-gigabit broadband services from net neutrality rules; Exempt from net neutrality rules any ISP that builds broadband service in any part of the U.S. that doesn't yet have download speeds of at least 25Mbps and upload speeds of at least 3Mbps; Exempt from net neutrality rules any ISP that gets universal service funding from the FCC's Rural Health Care Program; Exempt ISPs that serve 250,000 or fewer subscribers from certain transparency rules that require public disclosure of network management practices; and Prevent the FCC from limiting the types of zero-rating (i.e., data cap exemptions) that ISPs can deploy.
An additional Republican amendment "would have imposed net neutrality rules but declared that broadband is an information service, [preventing] the FCC from imposing any other type of common-carrier regulations on ISPs," reports Ars Technica. "The committee did approve a Democratic amendment to exempt ISPs with 100,000 or fewer subscribers from the transparency rules, but only for one year."
Verizon

Verizon Begins Rolling Out Its 5G Wireless Network In Chicago, Minneapolis (cnbc.com) 46

Verizon announced today that it has turned on its 5G wireless network in Chicago and Minneapolis -- two of the first markets in the world to receive this next-gen network. Verizon CEO Hans Vestberg told CNBC that the company will activate 30 additional markets this year. From a report: Vestberg added that Verizon is unlikely to see any impact on revenue from people who upgrade to new 5G phones until around 2021. This network complements Verizon's existing "5G Home" service which launched in October in select areas and is a wireless alternative to a traditional cable-based home internet connection, but does not work far beyond the walls of your home.

Verizon said the wireless network will give customers access to peak speeds up to 1 Gbps. That's about 10 times faster than you might traditionally find on the LTE connection you have now. Put plainly: You'll be able to download movies in seconds instead of minutes. Only a select number of phones will support the network at first. Samsung will launch a Galaxy S10 5G model later this quarter that will be exclusive to Verizon to start. AT&T, T-Mobile and Sprint will begin to sell it in the second half of the year. That leaves the Motorola Z3 as the only phone that supports Verizon's new 5G network right now, and it requires a separate accessory to work on it.

Cellphones

Phone Carrier Apps Can Help Fight Robocalls -- Sometimes, Even For Free (cnn.com) 69

Friday CNN reported on "what you can do right now to stop robocalls."

"Short of throwing your phone in the garbage, there's no way to avoid them altogether. But wireless providers and smartphone developers offer tools to filter out at least some unwanted calls." - Verizon's Call Filter app is free to download on iPhones and Android devices. The company announced Thursday the app will offer some free features -- including auto-blocking calls from known fraudsters, showing warning banners for suspicious calls, and a spam reporting tool. For $2.99 a month per line, the Call Filter app can use a phonebook feature to look up the names of unknown callers, and it can show a "risk meter" for spam calls.

- AT&T's Call Protect has similar free features and add-ons with a $3.99 per month subscription. (iOS and Android)

- T-Mobile phones come loaded with Scam ID, which warns customers about suspicious phone numbers. It's also free to activate Scam Block, which automatically rejects calls from those numbers. An additional app called Name ID offers premium caller identification for $4 per line monthly. (iOS and Android)

- Sprint's Premium Caller ID , which comes pre-installed, looks up unknown numbers and filters and blocks robocalls for $2.99 per line.

- Google's Pixel phones also give you the option to have your voice assistant answer suspicious calls for you. The phone can transcribe the conversation and lets you decide whether to answer.

Apple

Apple Cancels Long-delayed AirPower Charging Mat (venturebeat.com) 106

One and a half years after announcing a wireless charging mat for iPhones, Apple Watches, and AirPods called AirPower, Apple has unexpectedly cancelled the accessory. From a report: It notably missed its expected shipping dates multiple times, including a potential release alongside the second-generation version of AirPods and charging case this week. "After much effort, we've concluded AirPower will not achieve our high standards and we have cancelled the project," said Apple SVP of Hardware Engineering Dan Riccio in a statement today. "We apologize to those customers who were looking forward to this launch. We continue to believe that the future is wireless and are committed to push the wireless experience forward." Mark Gurman of Bloomberg, adds, "This is fairly unprecedented and unbelievable. The AirPods even have a picture of the AirPower on the box."
Advertising

Would You Put Ads On Your Homescreens For Free Mobile Service? 98

An anonymous reader quotes a report from TechCrunch: Moolah Mobile is teaming up with SurgePhone Wireless to offer people a new way to pay their cell phone bills -- by putting ads on their homescreens. Moolah CEO Vernell Woods (pictured above) said the startup has already been offering gift cards and other rewards to users who view its homescreen ads. So this is a similar model, except instead of earning gift cards, the ads are subsidizing cell phone service from Surge. The ads show up on users' homescreens during interstitial moments between using apps, so the goal is to offer free service without consumers having to change their behavior. Woods said all that ad time adds up, with "the average person who's using their phone on a consistent basis" viewing "easily between two to three hours" of homescreen ads each day. And that's enough to pay for the "equivalent" of Surge's $10 monthly plan. On the other hand, if for some reason a subscriber isn't hitting the necessary total, Woods said they can also earn more points by accepting offers or taking surveys. The subsidized wireless service will roll out in Florida, Virginia, Georgia and Texas initially, with an aim of reaching 40,000 locations by the end of the year.
Security

Researchers Find 36 New Security Flaws In LTE Protocol (zdnet.com) 23

An anonymous reader quotes a report from ZDNet: A group of academics from South Korea have identified 36 new vulnerabilities in the Long-Term Evolution (LTE) standard used by thousands of mobile networks and hundreds of millions of users across the world. The vulnerabilities allow attackers to disrupt mobile base stations, block incoming calls to a device, disconnect users from a mobile network, send spoofed SMS messages, and eavesdrop and manipulate user data traffic. They were discovered by a four-person research team from the Korea Advanced Institute of Science and Technology Constitution (KAIST), and documented in a research paper they intend to present at the IEEE Symposium on Security and Privacy in late May 2019.

The Korean researchers said they found 51 LTE vulnerabilities, of which 36 are new, and 15 have been first identified by other research groups in the past. They discovered this sheer number of flaws by using a technique known as fuzzing --a code testing method that inputs a large quantity of random data into an application and analyzes the output for abnormalities, which, in turn, give developers a hint about the presence of possible bugs. The resulting vulnerabilities, see image below or this Google Docs sheet, were located in both the design and implementation of the LTE standard among the different carriers and device vendors. The KAIST team said it notified both the 3GPP (industry body behind LTE standard) and the GSMA (industry body that represents mobile operators), but also the corresponding baseband chipset vendors and network equipment vendors on whose hardware they performed the LTEFuzz tests.

Android

New Huawei Phone Has a 5x Optical Zoom, Thanks To a Periscope Lens (arstechnica.com) 88

An anonymous reader quotes a report from Ars Technica: Huawei officially announced the Huawei P30 Pro smartphone today. While it has a new Huawei-made SoC, an in-screen optical fingerprint reader, and lots of other high-end features, the highlight is definitely the camera's optical zoom, which is up to a whopping 5x. Not digital zoom. Real, optical zoom. Space, of course, is at a premium in smartphones. Imagine a smartphone sitting face down, and you would have to fit a vertical stack of the display, the CMOS sensor, and the lens all in about an 8mm height. There is just not a lot of room. But what if we didn't have to stack all the components vertically? The trick to Huawei's 5x optical zoom is that it uses a periscope design.

From the outside, it looks like a normal camera setup, albeit with a funky square camera opening. Internally, though, the components make a 90-degree right turn after the lens cover, and the zoom lens components and CMOS sensor are arranged horizontally. Now instead of having to cram a bunch of lenses and the CMOS chip into 8mm of vertical phone space, we have acres of horizontal phone space to play with. We've seen prototypes of periscope cameras from Oppo, but as far as commercial devices go, the Huawei P30 Pro is the first. While the optical zoom is the big new camera feature, there are four total cameras on the back of the P30 Pro. A 40MP main camera, a 20MP wide angle, the 8MP 5X telephoto, and a Time of Flight depth-sensing camera. The main 40MP camera uses a 1/1.7 inch-type sensor that, when measured diagonally, would make it 32 percent larger than the 1/2.55 inch-type sensors in the Galaxy S10 or iPhone XS.
The P30 Pro also has a new "RYYB" pixel layout, which swaps out the two green pixels in most CMOS "RGGB" sensors for yellow pixels. "Huawei claims it can capture 40 percent more light, as the yellow filter captures green and red light," Ars Technica reports. "Of course, this will make the color wonky, but Huawei claims it can correct for that in software."

Other specifications include a Kirin 980 octa-core processor with 6GB or 8GB RAM, up to 512GB storage, IP68 water and dust resistance, NFC, wireless charging, 40W wired charging, and a 4,200mAh battery. It starts at a price of $1,125.
Wireless Networking

Engineers Build Teeny-Tiny Bluetooth Transmitter That Runs On Less Than 1 Milliwatt (ieee.org) 43

Engineers at the University of Michigan have built the first millimeter-scale stand-alone device that meets Bluetooth Low Energy (BLE) specifications. "Consuming just 0.6 milliwatts during transmission, it would broadcast for 11 years using a typical 5.8-mm coin battery," reports IEEE Spectrum. "Such a millimeter-scale BLE radio would allow these ant-sized sensors to communicate with ordinary equipment, even a smartphone." From the report: The transmitter chip, which debuted last month at IEEE International Solid-State Circuits Conference, had to solve two problems. The first is power consumption, and the second is the size of the antenna. An ordinary transmitter circuit requires a tunable RF oscillator to generate the frequency, a power amplifier to boost its amplitude, and an antenna to radiate the signal. The Michigan team combined the oscillator and the antenna in a way that made the amplifier unnecessary. They called their invention a power oscillator. The key part of an oscillator is the resonant tank circuit: an inductor and a capacitor. Energy sloshes back and forth between the inductor's magnetic field and the capacitor's electric field at a resonant frequency determined by the capacitance and inductance. In the new circuit, the team used the antenna itself as the inductor in the resonant tank. Because it was acting as an inductor, the antenna radiated using changing magnetic field instead of an electric field; that meant it could be more compact.

However, size wasn't the only thing. Quality factor, or Q, is a dimensionless quantity that basically says how efficient your resonator is. As a 14-mm long loop of conductor, the antenna was considerably larger than an on-chip inductor for a millimeter-scale radio could be. That led to a Q was that was about five times what an on-chip inductor would deliver. Though it was a much more efficient solution, in order to meet BLE specifications, the team needed a better way to power the power oscillator. Their solution was to build an on-chip transformer into the circuit that supplies power to it. The transformer looks like two nested coils. One coil is attached to the supply voltage end of the oscillator circuit, and the other is attached to ground side. Pumping the transformer at a frequency twice that of the power amplifier wound up efficiently boosting the flow of power to the antenna.

Government

FTC Tells ISPs To Disclose Exactly What Information They Collect On Users and What It's For 32

An anonymous reader quotes a report from TechCrunch: The Federal Trade Commission, in what could be considered a prelude to new regulatory action, has issued an order to several major internet service providers requiring them to share every detail of their data collection practices. The information could expose patterns of abuse or otherwise troubling data use against which the FTC -- or states -- may want to take action. The letters requesting info went to Comcast, Google, T-Mobile, and both the fixed and wireless sub-companies of Verizon and AT&T. These "represent a range of large and small ISPs, as well as fixed and mobile Internet providers," an FTC spokesperson said. I'm not sure which is mean to be the small one, but welcome any information the agency can extract from any of them.

To be clear, the FTC already has consumer protection rules in place and could already go after an internet provider if it were found to be abusing the privacy of its users -- you know, selling their location to anyone who asks or the like. (Still no action there, by the way.) But the evolving media and telecom landscape, in which we see enormous companies devouring one another to best provide as many complementary services as possible, requires constant reevaluation. As the agency writes in a press release: "The FTC is initiating this study to better understand Internet service providers' privacy practices in light of the evolution of telecommunications companies into vertically integrated platforms that also provide advertising-supported content."
The report provides this example as to the kind of situation the FTC is concerned about: "If Verizon wants to offer not just the connection you get on your phone, but the media you request, the ads you are served, and the tracking you never heard of, it needs to show that these businesses are not somehow shirking rules behind the scenes."

"For instance, if Verizon Wireless says it doesn't collect or share information about what sites you visit, but the mysterious VZ Snooping Co (fictitious, I should add) scoops all that up and then sells it for peanuts to its sister company, that could amount to a deceptive practice," TechCrunch adds. "Of course it's rarely that simple (though don't rule it out), but the only way to be sure is to comprehensively question everyone involved and carefully compare the answers with real-world practices."
News

Oslo Will Build Wireless Chargers For Electric Taxis in Zero-Emissions Push (cnet.com) 110

Norway is helping lead the charge toward complete electrification, and it will soon have a whole network of wireless chargers for its capital city's fleet of taxis. From a report: The city of Oslo, in conjunction with Finnish utility company Fortum and American manufacturer Momentum Dynamics, announced last week that the three will work together to create a wireless-charging infrastructure for Oslo's growing zero-emission taxi fleet. The charging plates will be installed at places where taxis park and wait for fares.

The city will use Momentum Dynamics' wireless charging technology, which is claimed to work at speeds up to 75 kilowatts, which is in the neighborhood of most current DC Fast Charge stations. Taxis will have the requisite hardware installed, so all they need to do is park over a charging station and accumulate electrons before shuffling off somewhere else. "We believe this project will provide the world with the model it needs for keeping electric taxis in continuous 24/7 operation," said Andrew Daga, CEO of Momentum Dynamics, in a statement. "It will build on the success we have demonstrated with electric buses, which also need to be automatically charged throughout the day in order to stay in operation. Momentum is very excited to be working with the people of Oslo and with our partner Fortum."

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