Simple integrated control for zoom/pan functions

US7847792B2 · kind B2 · utility

Assignee

• Tektronix, Inc. · US

Inventors

• Scott R. Ketterer · Beaverton, US
• Lance H. Forsberg · Beaverton, US
• Lynne A. Fitzsimmons · Portland, US
• Evan A. Dickinson · Portland, US
• Steven C. Herring · Beaverton, US
• Kenneth P. Dobyns · Beaverton, US
• Keith D. Rule · Beaverton, US

Key dates

• Filing date: Jun 28, 2006
• Grant date: Dec 7, 2010
• Expiry date: Oct 7, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R13/20
• WIPO field: Measurement
• WIPO sector: Instruments

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.