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Method and system for accelerated data navigation

  • US 6,738,045 B2
  • Filed: 02/26/2001
  • Issued: 05/18/2004
  • Est. Priority Date: 02/26/2001
  • Status: Expired due to Fees
First Claim
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1. A system for controlling navigation of a data file, comprising:

  • an input device having a user-actuated input mechanism for generating signals representative of input events;

    detection means for detecting a rate of user actuation of said mechanism;

    determination means for determining a data file navigation rate representing a navigation amount per input event as an increasing exponential function of the detected rate of user actuation; and

    output means for outputting control signals indicative of said navigation rate;

    wherein the function is the exponential function Δ

    y=C+K1(1+K2Δ

    t)α

    , wherein Δ

    y is the navigation rate, C is a constant, K1 and K2 are gain factors, α

    is a non-linear parameter, and Δ

    t is an indication of the rate of user actuation.

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