Archive for the 'technology' Category

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Biometric spielerei: Applied Minds

Reading this article on Applied Minds sure brings back memories:

Co-founder Danny Hillis escorts me down a hallway that dead-ends into an old-fashioned red phone booth. The phone rings. He places receiver to ear.
The blue moon jumps over the purple sky,” he says, and hangs up.
Suddenly, the booth becomes a door, swinging out to reveal a vast, open room filled with engineers, gadgets and big ideas.
from Applied Minds Think Remarkably (Wired)


I remember Maarten, Henry, Frederik and me, in the early days of Keyware (in 1998, I think), preparing a demo for Walter Debrouwer’s Riverland company. The latter wanted to impress his prospective client BP, and so he wanted a biometric access control to his ‘labs’.

We hacked something together with a hastily purchased badge-reader-annex-intercom, linked to a PC’s soundcard, running the first beta demo of our speaker authentication software (based on a Lernout & Hauspie technology). I think we even added the Visionics (now Identix) face recognition software we licensed, linked to a QuickCam webcam. So the system would recognize your face, recognize your voice while you pronounce your passphrase and then let you in when it was sure enough it was actually you. Wonderful when it works. And when it doesn’t, you can always explain about false rejection, false acceptance, and equal error rate. Maarten and me even wrote a white paper on the subject, but I can’t find that document back, only references (PDF) to it.

Frederik is now at Vasco, Maarten is at Imec, Henry has set up Broncoway. But I have no idea what happened to Veronique, An, Anke, Rudy and the lovely Julia. Maybe it’s time for a reunion.

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Hybrid CD: making it run on Mac and PC

Just write it on a CD” can mean a lot of things. There’s the plain audio CD (also ‘IEC 908′ or ‘Red Book‘ standard – 74 minutes of audio), the CD-ROM (or ‘Yellow Book‘ – 700MB of data), the CD-R (’Orange Book‘) and I’m not even gonna go into stuff like SVCD (Super Video CD – up to 60 minutes of video).

While these colorful standards define the lowest level of formatting, for a CD-R/CD-ROM you still have the issue of which filesystem to use on it. Apple has chosen for using its Hierarchical File System (HFS) – the weird one with the resource forks – on CD media too, while PCs use the ISO 9660 standard (in its basic version: 8.3 filenames). PC-style CDs are readable on a Mac most of the time, while Mac disks are only accessible on a PC with special software. And it’s possible to create a CD with both a Mac and PC partition, each of them invisible for the other platform: the hybrid disc.
Continue reading ‘Hybrid CD: making it run on Mac and PC’

Busy Being Born: the Mac User Interface


from folklore.org

This story illustrates the birth process of the Apple Mac user interface from 1978 to 1982, as told by Andy Hertzfeld. Lots of Polaroids to document the progress. The whole Folklore site is full of early Apple inside stories, for instance on Steve Jobs’ “Reality Distortion Field”.

The reality distortion field was a confounding melange of a charismatic rhetorical style, an indomitable will, and an eagerness to bend any fact to fit the purpose at hand. If one line of argument failed to persuade, he would deftly switch to another. Sometimes, he would throw you off balance by suddenly adopting your position as his own, without acknowledging that he ever thought differently.
(from folklore.org)

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