Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Patent
1996-01-30
1997-05-06
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
345170, 395326, G08G 500
Patent
active
056275676
ABSTRACT:
A method and apparatus is provided for defining expanded touch zones for active control keys on a touch sensitive user interface panel. The user interface panel has one or more active control key display areas that each display a respective active control key, each active control key indicating an active control function that is available for selection by a user. The user selects a desired active control function by touching a probe to the user interface panel in a location corresponding to a touch zone defined for the active control key that indicates the desired active control function. Expanded touch zones for each active control key are defined, the expanded touch zone for each active control key having an area that is larger than the corresponding display area for the control key. When the user touches the probe to the interface panel, a determination is made as to whether the probe has touched an expanded touch zone for any active control key and if it has, the active control function indicated by the active control key corresponding to the expanded touch zone touched by the probe is selected, and if it has not, an indication is provided that no active control function has been selected. The size of the expanded touch zone defined for each active control key varies depending upon the existence and location of other active control keys on the display panel.
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English language version of German patent 4007216A1 which was cited by the German Patent Office in a counterpart German application no. P4406668.6-53. The English language version is believed to be an accurate translation of the German patent.
English language version of a German Patent Office action relating to a counterpart application (Apl. No. P 44 06 668.6-53) in which the three above-listed references were cited. The English language version is believed to be an accurate translation of the German Office action, and indicates the degree of relevance found by the German Patent Office with respect to the Japanese language reference.
Callahan, Jack, "An Empirical Comparison of Pie vs Linear Menus"U, of Maryland Dept Comp Sci, Sep. 1987.
Chang Kent
Hewlett--Packard Company
Hjerpe Richard
LandOfFree
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