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Logitech Goes Into Technical Detail About Mouse Sensors

By - Source: Tom's Hardware US | B 19 comments

Every wanted to know what goes on in that mouse under your palm?

We recently took a trip to Logitech's headquarters in Switzerland to learn more about how the company designs its products. Senior engineer François Morier took the time to explain the considerations that designers must make when creating mouse products.

Morier goes in depth technically how sensors work, DPI count and calculations, why higher DPI isn't necessarily better, angle error, resolution vs. speed error (acceleration), ripple (jitter), dropouts, pixel walk, and circle drift.

If you've ever wondered why your mouse behaves (or misbehaves) the way it does, then you'll want to pay attention to this video below:

Logitech HQ: François Morier, Senior Engineer Explains Mouse Sensor Design

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  • 0 Hide
    Parrdacc , June 6, 2013 7:02 AM
    Very informative video. I lost count how many times I got into arguments over DPI and how it relates to jitter. So many people just assume higher DPI is better and thats that, and then wonder why their mouse is acting funny. I always wonder about pixel walk, I knew what it was, but did not know precisely why it happened. Good video.
  • 5 Hide
    digiex , June 6, 2013 7:37 AM
    The noise from the still camera is annoying.
  • 5 Hide
    uruquiora , June 6, 2013 7:38 AM
    very informative... the clicking sounds of the cameras is VERY annoying though... why do you guys had to take that many pictures ???
    I bet they were too busy taking pics and they didnt even listen to what the guy was saying...
  • 0 Hide
    SlitWeaver , June 6, 2013 8:00 AM
    Woah...it's cool to understand WHY and HOW some mice are horrid or a mouse might be dying on you. Super awesome video! :D 
  • 2 Hide
    juanc , June 6, 2013 8:35 AM
    1) This is why TOMS exists. Wonder why they have to fill the rest of the site with crap
    2) The guy does not have tits. I'm also trying to understand why so many pictures... it was more like a video made out of stills...
  • 0 Hide
    Achoo22 , June 6, 2013 8:36 AM
    Although the lecturer doesn't discuss anything surprising or difficult to grasp, it was interesting by being a topic I haven't given a great deal of thought. It would've been nice, however, if he gave some information about selecting or comparing mice such that one could identify superior devices or more readily identify flaws in inferior ones.
  • -1 Hide
    thundervore , June 6, 2013 10:23 AM
    Very informative indeed on tracking. I would like this same guy to do a piece on their mouse buttons an explain why the leftclick is always the first to die in THEIR mouse.
    Im on my 3rd Performance MX in a 4 year span. Thank you for the 3 year warranty!
  • 0 Hide
    PrvtChurch , June 6, 2013 10:32 AM
    This is why I love Logitech Mice. They put so much time and effort into the science behind it all to make the best products possible.
  • 0 Hide
    Tuishimi , June 6, 2013 11:30 AM
    Cool vid! Like this kind of thing. I have been happy with my AnywhereMX mouse for several years now... I am impressed it has lasted as (sort of like achoo22) long as it has because I usually go through peripheral hardware very quickly.
  • -1 Hide
    shahrooz , June 6, 2013 12:52 PM
    Every wanted to know what goes on in that mouse under your palm?
    lol?
  • 1 Hide
    bystander , June 6, 2013 4:13 PM
    thundervore: "Very informative indeed on tracking. I would like this same guy to do a piece on their mouse buttons an explain why the leftclick is always the first to die in THEIR mouse.
    Im on my 3rd Performance MX in a 4 year span. Thank you for the 3 year warranty! "

    I think it is pretty obvious as to why. You click the left mouse button a lot more often.
  • 0 Hide
    Soul_keeper , June 7, 2013 12:33 PM
    It's a shame that you can no longer get the most advanced sensor/tech on a simple mouse without stomaching the annoyance of 12+ buttons and an awfull shape/theme.
  • 0 Hide
    bystander , June 7, 2013 12:54 PM
    Quote:
    It's a shame that you can no longer get the most advanced sensor/tech on a simple mouse without stomaching the annoyance of 12+ buttons and an awfull shape/theme.


    That is not entirely true. The G400 and G500 have good sensors and a moderate amount of buttons. Razer mice also have few buttons and good sensors. The G9x isn't so bad either. 2 thumb buttons is all those have, except for the G500 which has 3.
  • 0 Hide
    vestibule , June 7, 2013 4:12 PM
    Quote:
    It's a shame that you can no longer get the most advanced sensor/tech on a simple mouse without stomaching the annoyance of 12+ buttons and an awfull shape/theme.


    I think Zowie is a great example of a company that, for the most part, has the best optical sensors on the market(made better with a custom lense), with fairly simple plug-and-play mice. Just don't get the Mico whatever you do, the buttons are so stiff and the scroll wheel is terrible, it'd be my favorite by far though if it had the same sensor as either the EC1/EC2 or AM, the same scroll wheel, and the switches of the AM.

    The EC switches are feather light, I like switches a bit on the stiffer side to prevent accidental clicks and the AM is good for that. The small size and light weight in combination with the small feet of the Mico feels amazing on the Zowie G-TF Speed mousepad, the larger feet feel a bit rougher and more frictiony but still good. Having tried all three the AM seems like the best balance to me. People often point out prediction as a deal breaker, but almost all mice(including most gaming mice) have some amount of it and people probably don't know. Some of it is a good thing, but the word prediction tends to raise a red-flag to gamers.
  • 0 Hide
    knowom , June 8, 2013 12:36 AM
    I have a G500 and they did a terrible job secure the sensor and as a result it tracks terribly bad.
  • 0 Hide
    bystander , June 8, 2013 7:21 AM
    Quote:
    I have a G500 and they did a terrible job secure the sensor and as a result it tracks terribly bad.


    You might want to RMA it, or look for another reason for your tracking issues, as the G500 is generally considered one of the best.
  • 0 Hide
    Gaia Guardian , June 8, 2013 7:57 AM
    Ok, this might sound a bit stupid, as a gamer/consumer, when I go shopping for a mouse, what should I really look for?
    ^_^
    (currently using deathadder)
  • 0 Hide
    Gaia Guardian , June 8, 2013 8:06 AM
    erm... accidentally double posted, not sure how 2 delete this one so.. just ignore this one XD
    sorry!!
  • 0 Hide
    chechak , June 8, 2013 2:04 PM
    why so serious in mouse sensitivity ?