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Submission + - Facebook Violates Canadian Privacy Law

Myriad writes: "Canadian Privacy Commissioner, Jennifer Stoddart, has ruled that Facebook has failed to meet the requirements of Canadian privacy legislation. As the BBC reports, "Facebook's policy of holding on to subscribers' personal information, even after their accounts had been deactivated, was one area that breached Canada's privacy laws". According to the Toronto Star, Stoddart indicated a total of four area's Facebook violated, which also included "A lack of adequate safeguards to restrict outside software developers — of games, quizzes and the like — from gaining access to personal profiles of users and their online friends", "A lack of clarity about how Facebook material can be used in the event of a person dying, which the privacy office calls "memorialization" concerns", and "A lack of protection of information about non-users — people who may not have their own Facebook accounts, but whose personal data may be on friends' or associates' pages." Facebook has been given 30 days to respond."

Comment Re:Can somebody explain how it works? (Score 5, Informative) 189

This has been done before, IIRC Samsung released one of the first TV quality raster scanning system for laser shows.

Basically a standard laser show setup uses multiple lasers (to get your RGB) combined into a single beam then passed through a device, such as a PCAOM, which acts as rather like a programmable colour filter. (this isn't the only way it can be done with solid state lasers).

Two sets of mirrors can be steered in the X and Y axis to draw your shapes, beam effects, etc.

In the case of a TV or other raster displays the beam is steered much like you would an electron beam on a regular TV. It scans a horizontal line, moves down scans across, repeat. You can switch the direction of the scan (left to right, then right to left) on alternating lines to speed up the scan rate.

Wikipedia has some info on Laser TV's in general: and LaserFX has some info on PCAOM's if you're interested in the older tech:

Early systems actually used multiple projectors overlapping or drawing the first 3rd, 2nd third, etc of the image to make up for slower scan rates.

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