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Immersion Sues Sony and Microsoft Over Force Feedback

stereoroid writes: "Immersion Corp. has filed a lawsuit against Sony and Microsoft, alleging unauthorised use of their patents - here's their press release. The suit alleges that any use of touch or force feedback in their consoles violates their patents. For some obscure reason, this was first reported in the Irish Times today."

3 of 276 comments (clear)

  1. There has got to be prior art for this patent by asmithmd1 · · Score: 4, Informative
    They filed this in March of 1996, I know I played Atari Pole Position which had force feedback steering before I could drive a car, that would make it 1983

    5,691,898 November 25, 1997 Safe and low cost computer peripherals with force feedback for consumer applications Abstract A method and apparatus for providing safe and low-cost force feedback peripherals for consumer applications. A device microprocessor local to an interface device is coupled to the host by a first interface bus. The microprocessor receives host commands from the host computer on the first interface bus, such as an RS-232 interface, and commands an actuator to apply a force to a user object, such as a joystick, in response to host commands. A sensor detects positions of the user object and outputs signals to the host on a second interface bus, such as a PC game port bus, separate from the first bus. In a "recoil" embodiment, a user initiates force feedback by pressing a button on the joystick, which sends an activation signal to the actuator. In other recoil embodiments, the host computer can transmit one or more enable signals and/or activation signals to the actuator to enable or command forces. A safety switch of the present invention disables the actuator when the interface device is not in use and enables the actuator when an amount of weight over a predetermined amount is placed on the joystick created by a user grasping the joystick. A circuit of the present invention includes a capacitor for storing power provided by an input signal and supplied to the actuator when forces are to be output.

  2. This technology is 100 years old! by clintp · · Score: 5, Informative
    The technology for arcade games to have physical feedback to the user is well over 100 years old.

    Go to an antique arcade (here's one) and look around a bit. There's machines that use electrical stimulation (low-voltage applied across the handles) and machines that use mechanical feedback (vibration, pulling, pushing). Many of these machines date from the 19th century.

    There's nothing *new* about this at all.

    --
    Get off my lawn.
  3. Re:Noam Slashdot :o by cruelworld · · Score: 4, Informative

    for more details see here.

    Or just use google. Like normal people do.