resistor

Latest

  • ForcePhone from Nokia Research, HIIT sends positive vibes with a squeeze

    by 
    Jon Fingas
    Jon Fingas
    10.16.2012

    Most device vibration technology is used as pure feedback -- either confirmation that you've pressed something or that you've come across an obstacle. If a prototype developed by Nokia Research and the Helsinki Institute of Information Technology ever translates to production, however, it'll be as much a part of personal phone conversations as a soft voice or a cheeky text message. The modified N900 attaches a resistor that responds to a squeeze at four different pressure levels, and doles that out during a traditional or Skype-based call as a vibration on the other end. As you'd imagine, the aim is to give family, friends and lovers the closest they'll get to a hug (or the occasional frustration) when the distance is just too great for an in-person visit. Don't hold your breath for an extra-lovable Lumia anytime soon: there's no mention of any near-term production plans, and any adoption would require a platform switch just to get started. But if we ever see "reach out and touch someone" become a lot more than a slogan, we'll know where it came from.

  • Light-based 'Metatronics' chip melts minds, not copper

    by 
    James Trew
    James Trew
    02.26.2012

    Engineers at the University of Pennsylvania have flipped the switch on a new type of computer circuit. Unlike conventional silicon, the new chip uses light -- not electricity -- to perform its logic. By creating an array of nano-rods, light-flow can be treated like voltage and current. These rods can then be configured to emulate electrical components such as resistors, inductors and capacitors. The benefits of the so-called "metatronic" system would be smaller, faster and more efficient computer chips, which is clearly a welcome prospect. Another curious property the team discovered, is what it calls "stereo-circuitry." Effectively one set of nano-rods can act as two different circuits, depending on the plane of the field. This means your CPU could become a GPU just by changing the signal. We can't speak for the light itself, but our minds are certainly bent.

  • HP Labs teams up with Hynix to manufacture memristors, plans assault on flash memory in 2013

    by 
    Ross Miller
    Ross Miller
    08.31.2010

    The memristor's come a long way since being hypothesized back in 1971. If you ask HP Labs, the history of this particular memory technology didn't hit its next milestone for almost four decades, when the company produced the very first memory resistor chip. Just last month, the Labs group proved its little transistor could handle logic and data storage, and as of today, the company's announcing a joint development agreement with Hynix Semiconductor, with a goal of bringing these chips to the market -- and rendering flash memory obsolete. That challenge against flash (not a very popular naming convention these days, it seems) was thrown down by HP Labs Senior Fellow Stan Williams, who posits that the memristor is "an universal memory that over a sufficient amount of time will replace flash, DRAM, magnetic hard disks, and possibly even SRAM." But onto the immediate, albeit aspirational goal (i.e. not a commitment, which he stressed on multiple occasions): Williams hopes to see the transistors in consumer products by this time 2013, for approximately the price of what flash memory will be selling for at the time but with "at least twice the bit capacity." He also claims a much smaller power requirement of "at least a factor of 10" and an even faster operation speed, in addition to previously-discussed advantages like read / write endurance. With Hynix on board, the goal is to make these "drop-in replacements" for flash memory, whereby the same protocols and even the same connectors will work just fine. For HP, however, Williams says there'll be an initial competitive advantage for the company due to its comfort level with memristors' unique properties, but that other companies will be encouraged to license the technology and experiment with new possibilities in hardware design. Williams wouldn't give any specific product examples where we might initially see the memristor, except to repeat that it'll be anywhere and everywhere flash memory is. Fighting words, indeed. We normally don't get excited about minute hardware components -- not often, at least -- but we gotta say, the seeds of the future look mighty interesting. Can't wait to see what germinates. Highlights from our talk with Williams after the break. %Gallery-100780%

  • Engadget meets Woz

    by 
    Mike Schramm
    Mike Schramm
    01.04.2010

    Engadget's Josh Topolsky got to chat with none other than Woz recently, and they've finally shared a great video of their meeting. Woz says a lot of interesting things in the video (he runs six navigation systems at a time in his car just for comparison's sake, and carries two iPhones nowadays, just in case the battery life runs out), but the most intriguing thing about this video is just seeing the great Wozniak thinking machine race along at the speed of Woz. For example, those two iPhones he carries are the two different colors available. Why? "White and black, black and white. Resistor color codes: zero and nine. Those are the digits they end in!" Gosh, we love Steve Wozniak. You can watch the whole video after clicking the link below.

  • DIY project turns an oscilloscope into a clock

    by 
    Darren Murph
    Darren Murph
    04.11.2007

    While the highly-regarded Pong clock has long held the crown for most intriguing DIY clock, it looks like the leaderboard could be seeing a change. Frank Techniek's interesting oscilloscope conversion is yet another prime example of turning vintage (or otherwise idiosyncratic) kit into a modern day gadget, and the 20MHz TRIO that once read signal voltages for a living is now enjoying an unusually time consuming (ahem) retirement. Per usual, this expert-minded endeavor involved more circuitry, soldering, resistors, and time off than we have room to explain, but if you're interested in propping one of these up in your den, be sure to hit the read link for the nicely detailed bill of materials and assembly instructions.[Via MAKE]