United States Patent [w]
Alexander
US006054984A [ii] Patent Number: 6,054,984 [45] Date of Patent: *Apr. 25,2000
[54] SYSTEM AND METHOD FOR
GRAPHICALLY MANIPULATING DISPLAY
ELEMENTS IN A SIGNAL MEASUREMENT
SYSTEM
[75] Inventor: Jay A Alexander, Monument, Colo.
[73] Assignee: Hewlett-Packard Company, Palo Alto, Calif.
[ * ] Notice: This patent issued on a continued prosecution application filed under 37 CFR 1.53(d), and is subject to the twenty year patent term provisions of 35 U.S.C. 154(a)(2).
[21] Appl. No.: 08/863,994 [22] Filed: May 27, 1997
[51] Int. CI. G06F 15/00
[52] U.S. CI 345/339; 345/340; 345/440;
345/970
[58] Field of Search 345/134, 339,
345/340, 349, 440, 970
[56] References Cited
U.S. PATENT DOCUMENTS
5,365,254 11/1994 Kawamoto 345/157
5,553,213 9/1996 Sano 345/440
5,579,462 11/1996 Barber et al 345/440
5,630,164 5/1997 Williams et al 345/440 X
5,631,667 5/1997 Cadwell 345/157
5,757,371 5/1998 Oron et al 345/348
5,760,785 6/1998 Barber et al 345/440
OTHER PUBLICATIONS
Waveform Generator/Editor Software from R4 Now Supports Pragmatic arbitrary waveforms generators, 1992. Romonchick, Virtual Instruments meet custom needs, Hitchcock publishing, 1996.
Primary Examiner—Raymond J. Bayerl
Assistant Examiner—Chadwick A. Jackson
[57] ABSTRACT
A display element manipulation system and methodology for use in a signal measurement system having a graphical user interface. The display element manipulation system provides a user with the ability to graphically manipulate a selected positionable display element presented on the graphical user interface. The display element manipulation system includes a display element selector configured to determine permissible adjustment directions for a selected positionable display element. The display element manipulation system also includes a display element position determinator configured to determine an adjustment command representing a desired adjustment direction and position for the selected display element.
38 Claims, 12 Drawing Sheets
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i Y A (1) = 4940 mV B(2) A
-2.981830 ms 423 mV i 1.000000 ms 1.363 V! 3.981830 ms 1/AX = 251.140 Hz
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