Computer graphics processing and selective visual display system – Display peripheral interface input device – Mechanical control
Reexamination Certificate
2006-06-28
2010-12-07
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Mechanical control
CD10S076000, C324S076110, C324S076810, C345S440100, C702S068000, C702S127000, C715S723000, C715S784000
Reexamination Certificate
active
07847792
ABSTRACT:
A simple, integrated control for pan and zoom of a display of data represented by a very long data record is in the form of a control knob having an outer ring for controlling pan and an inner knob for controlling a zoom factor. A zoom function is turned ON either by turning the inner knob (setting the zoom factor to a default value) or by (i) pressing an adjacent zoom or pan button or (ii) turning the outer ring (setting the zoom factor to a prior value when the zoom function was turned OFF). The zoom function may be turned OFF by turning the inner knob to set the zoom factor to 1× or by pressing the zoom button. The outer ring has individual positions divided into two groups: one group for controlling pan rate within a zoom window displaying a portion of the very long data record defined by a zoom box within a main window displaying the very long data record; and the other group for controlling pan rate of the zoom box within the main window for rapid movement from one end of the record to another.
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Dickinson Evan A.
Dobyns Kenneth P.
Fitzsimmons Lynne A.
Forsberg Lance H.
Herring Steven C.
Gray Francis I.
Lenihan Thomas F.
Mengistu Amare
Tektronix Inc.
Xavier Antonio
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