Alright, so you know the drill by now. A patent application doesn't necessarily mean an actual product is on the way -- but it's always fun to speculate, right? And this latest trio of applications from Apple certainly provides plenty of speculation fodder. The most notable of the lot is an application for a "multi-touch display screen with localized tactile feedback," which Apple seems to be at least considering as a possibility for the iPhone (or iPod touch). Like some similar systems, Apple's application covers a screen that uses a grid of piezoelectric actuators that can be activated at will to provide vibrational feedback when you touch the screen. Apple even goes so far as to use a virtual click wheel on an iPhone as an example. Other patent applications include a fairly self-explanatory RFID reader embedded in a touch screen, and a fingerprint identification system that could not only be used for security, but to identify individual fingers as an input method -- for instance, letting you use your index finger for play/stop and your middle finger to fast forward.

When most kids our age were cutting class to play Mike Tyson's Punch Out, the latch key kids over at Robot Stock News were taking apart their step father's vacuum. And as we grew up, all the while developing relationships with cellphone tipsters and eventually becoming successful tech bloggers in our own right, the Robot Stock News kids were also able to take their obsessive geek tendencies and make a name for themselves -- combing the interwebs, paying off high priced vacuum ninjas, and scouring the US Patent database for any and all news featuring many of our country's leading autonomous vacuum cleaners. They must have been really stoked to stumble upon a patent filed in November 2008, entitled "Compact Autonomous Coverage Robot." As far as we can tell, this document (filed by iRobot) details a Roomba with a squared off front, designed to hit those hard to reach corners that the traditional circular device cannot. This design change, while it seems minor, actually lends a level of complexity to the device: a square robot requires more complex programming, lest it get stuck in a niche that its round faced predecessor could never reach in the first place. Of course, there's no telling when (or if) this one will see the light of day, but you'll know as soon as we do. Promise.

[Via Robot Stock News]

We've already seen some patent evidence that Apple has at least been considering a Wiimote-like controller for the Apple TV, and a newly published patent filing has now thrown yet more fuel onto the fire, although, as with all Apple patents, that's hardly a guarantee of anything. Still, this latest filing is nothing if not detailed, and it clearly shows the so-called "remote wand" being used to control just about every aspect of the Apple TV, with the wand being twisted and turned to flip through a music library, rotate pictures, and simply control a cursor on the screen -- there's even a glimpse of it being used with a paint application. So, it's certainly possible, perhaps even likely given Apple's increasing distaste for buttons, but just keep all those Apple patents for head-mounted displays in the back of your mind lest you get too excited.

Canon's Live View implementation may not be a deal-breaker for most DSLR users, but there's certainly plenty of room for improvement, and a recent Canon patent application suggests that the company could possibly be aiming to do just that. The short of it is that the company seems to have found a way to overcome the inherent problems of employing so-called phase-difference autofocus in Live View, which is caused in part by the physical limitations of the mirror and the AF sensor (hit up the read link for some more background). Canon's solution, it seems, is to place the phase-difference AF sensor below the image sensor instead of above it, and make use of a semi-transparent mirror that'd allow for simultaneous transfer of light to the image sensor and the AF sensor. The average user would see the changes in the form of three new shooting modes, including a Standard Viewfinder Mode, a Fast AF Live View Mode, and a Full Live View mode, which each shift the position of the mirrors for the task at hand. What's more, while the patent application doesn't address it specifically, it would seem that this same method could also bring autofocus to DSLR video or, at the very least, video recorded via Live View.

Sorry folks -- we know that you were looking forward to a future of "pay to play" computing, but it seems that Microsoft's application has been soundly dissed by the patent office. Reasons for the decision include the company's "occasional use of fuzzy terminology" and the fact that much of this stuff has already been patented. Of course, the decision can be appealed -- but for the time being, if you still want to pay monthly for a computer AT&T has a netbook for you.

[Via Electronista]

As should be clear by now, patent application land is quite a bit different than actual product land, but that's never stopped companies from devising their share of ambitious ideas and, in the case of Apple, perhaps more than its share. Its latest describes an all-encompassing "personal area network" that would make use of RF modules in everything to communicate with each other and connect to the internet. That would include devices with both short range (WiFi and Bluetooth) and long range (GSM, EDGE, etc) communications capabilities, as well as devices with just short range modules, which would be able to communicate with and identify themselves to any other modules around and, potentially, piggyback their way onto the internet. Ambitious, to be sure, but we think Apple may have to come up with a catchier t-shirt slogan if they really want to sell it.

[Via Unwired View]