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EP0206246A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Absolute position mouse

Assignee: Individual
•
Filing: 1986-06-19
•
Granted: —
•
Expires: 2006-06-19
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Abstract

Abstract Apparatus for determining the absolute position of a point on a surface including a tablet or overlay and a moveable mouse-type cursor. The tablet includes a unique pattern of lines or regions along rectilinear or other axes. A series of adjacent spaces formed by the lines define unique cells on the tablet. The mouse includes a pair of linear imaging arrays adapted to detect the presence of tablet lines adjacent thereto. An integrated processor identifies the line types, computes line spacings and ratios, and identifies subtending cells by comparison to the known tablet topography. The processor further computes the precise location of a point defined on the mouse.

Inventors

  • 👤 Stephen A. Joyce

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 13:01
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/0304; G06F3/0317; G06F3/0321

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 110 words
A two-dimensional position location system including a marking means, the marking means being defined over a two-dimensional surface and including a pattern, the pattern comprising a sequence of contiguous spacings, each spacing having a predetermined dimension, a cell being defining as a group of a predetermined number of adjacent spacings, the sequence of spacings being arranged whereby any cell within the sequence uniquely locates an associated region of marking means; pointing means adapted for relative movement adjacent the two-dimensional surface of the marking means, the pointing means including means for detecting marking means cells and means for computing the position of the pointing means relative to the marking means surface.
Claim 2
Dependent Claim 110 words
A two-dimensional position location system including a marking means, the marking means being defined over a two-dimensional surface and including a pattern, the pattern comprising a sequence of contiguous spacings, each spacing having a predetermined dimension, a cell being defining as a group of a predetermined number of adjacent spacings, the sequence of spacings being arranged whereby any cell within the sequence uniquely locates an associated region of marking means; pointing means adapted for relative movement adjacent the two-dimensional surface of the marking means, the pointing means including means for detecting marking means cells and means for computing the position of the pointing means relative to the marking means surface.

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