Category Archives: Interfaces

Articles relating to various interface specifications

GNOME (et al): Rotting In Threes

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I have never gotten into the KDE vs GNOME debates, so this is not GNOME bashing, nor, as you’ll soon see, are these systemic development problems limited to GNOME. Yet what I’m hearing is that with GNOME v3 the goal is to promote their “brand” and make it dominant, in part by greatly limiting what users can change on their own systems, and partly by breaking or simply removing whatever support they’re no longer promoting as ‘The Way’. The reach of this selfish and narrow-sighted development goes beyond GNOME and affects GTK apps in general.

via GNOME (et al): Rotting In Threes « IgnorantGuru’s Blog.

What follows is a sampling of quotes from various places and assorted devs which paint a picture of a growing culture of anti-user, conformist philosophies. There’s a bit of text to review here, but I think it’s worth it to hear what GNOME devs have to say about their intentions and goals, in their own words, and what others are saying about that!

Verizon called hypocritical for equating net neutrality to censorship

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Verizon is in the middle of a legal fight against the open Internet rules the Federal Communications Commission adopted in 2010. In addition to arguing that Congress never gave the FCC authority to regulate network neutrality, Verizon also claimed that forcing Verizon to abide by network neutrality rules violated the firm’s First Amendment right to free speech.

via Verizon called hypocritical for equating net neutrality to censorship | Ars Technica.

But CDT says Verizon can’t have it both ways. If Verizon is going to claim ISPs are “passive conduits” for copyright purposes, then in CDT’s view that implies that its routing decisions cannot be “active” enough to deserve protection under the First Amendment.

A New Chip Brings Electrical-Field-Based 3-D Gesture Recognition to Smartphones

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The low-power chip makes it possible to interact with mobile devices and a host of other consumer electronics using hand gesture recognition, which today is usually accomplished with camera-based sensors. A key limitation is that it only recognizes motions, such as a hand flick or circular movement, within a six-inch range.

via A New Chip Brings Electrical-Field-Based 3-D Gesture Recognition to Smartphones | MIT Technology Review.

The controller comes with the ability to recognize 10 predefined gestures, including wake-up on approach, position tracking, and various hand flicks, but it can also be programmed to respond to custom movements. Similar to the programming of voice recognition software, Microchip Technology built the gesture library using algorithms that learned from how different people make the same movements. These gestures can then be translated to functions on a device, such as on/off, open application, point, click, zoom, or scroll.

iFlyTek’s YuDian—the “Chinese Siri”—is available to anyone with a mobile phone in China.

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iFlyTek has developed a series of text-to-speech (TTS) products and, more recently, speech recognition and the cloud-based speech tech platform, called Voice Cloud. Over the years, accuracy rates steadily improved and the technology found its way onto an ever-wider range of products.

Its Voice Cloud platform supports speech recognition, speech synthesis, and speech-input applications, and as of March of this year, speech understanding and “iFlyTek YuDian”—dubbed the Chinese Siri—to anyone with an Internet-enabled mobile phone.

via iFlyTek’s YuDian—the “Chinese Siri”—is available to anyone with a mobile phone in China. | MIT Technology Review.

Finally, its extensive network of 10,000 partners and developers has ensured the tech is available via a wide variety of devices, channels, and applications. The world’s largest network operator, China Mobile, recently took up a 15 percent share in the firm, further expanding its reach.

GNOME 3.8 Is Dropping Its Fallback Mode

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Matthias Clasen on the behalf of the GNOME Release Team has announced that they have decided to eliminate GNOME’s “fallback mode” with the upcoming 3.8 release that allowed a “GNOME classic” mode that didn’t depend upon OpenGL/3D rendering and was more like the GNOME2 traitional desktop.

via [Phoronix] GNOME 3.8 Is Dropping Its Fallback Mode.

Now for GNOME users without a proper GPU and drivers, if you want to still use GNOME, you will need to use LLVMpipe for a software-accelerated experience of the GNOME Shell.

Gnome has totally gone off the rails.  Luckily there is a fork for Gnome called Mate.  Mate is supposed to be shipped with Fedora 18.  I have used Mate in a Linux Mint virtual machine and it works well.  I tried loading it into a Fedora 17 VM many months ago and it had problems but I’m sure all of that will get worked out.  IMHO, Gnome has become a product of hubris.  I’ve tried to use it and just can’t deal with the constant context switching to do simple tasks like opening a terminal window.

Docsis 3.1 Targets 10-Gig Downstream

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ORLANDO — SCTE Cable-Tec Expo — The Docsis 3.1 platform will support capacities of at least 10Gbit/s downstream and 1Gbit/s upstream, a move that will certainly prolong the industry’s need to deploy fiber all the way to the home.

via Light Reading Cable – Cable – Docsis 3.1 Targets 10-Gig Downstream – Telecom News Analysis.

To hit its capacity targets, the cable industry wants to increase its spectral efficiency by about 50 percent. As expected, the new specs will do away with 6MHz- and 8MHz-wide channel spacing and instead use smaller (20KHz-to-50KHz-wide) orthogonal frequency division multiplexing (OFDM) subcarriers; these can be bonded inside a block spectrum that could end up being about 200MHz wide. (See Docsis 3.1 Will Change Cable’s Data Channels.)

The definition of ofdm from wiki.

Orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for widebanddigital communication, whether wireless or over copper wires, used in applications such as digital television and audio broadcasting, DSLbroadband internet access, wireless networks, and 4G mobile communications.

And the primary advantage using ofdm is:

The primary advantage of OFDM over single-carrier schemes is its ability to cope with severe channel conditions (for example, attenuation of high frequencies in a long copper wire, narrowband interference and frequency-selective fading due to multipath) without complex equalization filters.  Channel equalization is simplified because OFDM may be viewed as using many slowly modulated narrowband signals rather than one rapidly modulated wideband signal.

Chips Race to Absorb the Line Card

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EZchip and Netronome both sell network processors — chips specifically designed for networking equipment — and both say they’re expanding their scope to cover Layers 2 through 7, thanks to their new chip designs. That means they can target switching, routing, security, deep packet inspection — pretty much all the intelligence in a network element.

via Light Reading – Optical Networking – Chips Race to Absorb the Line Card – Telecom News Analysis.

Is a Wireless Data Center Possible?

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In a new paper, a team of researchers from Cornell and Microsoft concluded that a data-center operator could replace hundreds of feet of cable with 60-GHz wireless connections—assuming that the servers themselves are redesigned in cylindrical racks, shaped like prisms, with blade servers addressing both intra- and inter-rack connections.

via Is a Wireless Data Center Possible?.

Although many 60-GHz technologies are under consideration (IEE 802.15.3c and 802.11ad, WiGig, and others), the authors picked a Georgia Tech design with bandwidth of between 4-15Gbps and and effective range of less than or equal to 10 meters. Beam-steering wasn’t used because of the latencies involved in reinstating a dropped connection, although both time and frequency multiplexing were. (Because the team couldn’t actually build the design, they chose Terabeam/HXI 60-GHz transceivers for a conservative estimate.)

NASA to Demonstrate Communications Via Laser Beam

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It currently takes 90 minutes to transmit high-resolution images from Mars, but NASA would like to dramatically reduce that time to just minutes. A new optical communications system that NASA plans to demonstrate in 2016 will lead the way and even allow the streaming of high-definition video from distances beyond the Moon.

via NASA – NASA to Demonstrate Communications Via Laser Beam.

The LCRD is the next step in that direction, Israel said, likening the emerging capability to land-based fiber-optic systems, such as Verizon’s FiOS network. “In a sense, we’re moving FiOS to space.”

On the Feasibility of Side-Channel Attacks with Brain-Computer Interfaces

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The security risks involved in using consumer-grade BCI devices have never been studied and the impact of malicious software with access to the device is unexplored. We take a first step in studying the security implications of such devices and demonstrate that this upcoming technology could be turned against users to reveal their private and secret information. We use inexpensive electroencephalography (EEG) based BCI devices to test the feasibility of simple, yet effective, attacks. The captured EEG signal could reveal the user’s private informa- tion about, e.g., bank cards, PIN numbers, area of living, the knowledge of the known persons. This is the first attempt to study the security implications of consumer-grade BCI devices. We show that the entropy of the private information is decreased on the average by approximately 15 % – 40 % compared to random guessing attacks.

via On the Feasibility of Side-Channel Attacks with Brain-Computer Interfaces | USENIX.