US 5,502,803 AGranted

Information processing apparatus having a gesture editing function

AssigneeSharp Kabushiki Kaisha

InventorsHiroichi Yoshida, Junko Morimura, Kazuhiko Matsuo, Kazuhiko Takata

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Abstract

When a line is drawn on a screen with a coordinate input pen in a specific shape, the shape of the line drawing is collated with a reference stroke stored in a gesture table. As a result, an edit instruction corresponding to the shape of the line drawing is specified and executed. This function is called a gesture editing function. Here, the coordinate system which is the most suitable for computing the editing position on the screen is selected according to a given edit instruction. Thus, displacement of an editing position due to shaking of the user's hand can be avoided, thereby accurately executing the edit instruction. Moreover, the combination between the reference stroke and the edit instruction in the gesture table can be changed as desired by a key-operation according to the use of the user. Thus, a more convenient gesture editing function for the user can be achieved.

Claims23

Dependent claims

An information processing apparatus having a gesture editing function comprising:

a display screen for displaying document information;
position indicating means for indicating a position on said display screen;
position detecting means for detecting a coordinate of a handwritten point or coordinates of a handwritten line drawing on said display screen, the handwritten point or line drawing being drawn using said position indicating means;
first memory means for storing a plurality of different coordinate systems used in computing a position of a displayed character or character string, wherein a position of a point of origin on the display screen of each different coordinate system differs depending on the coordinate system;
second memory means for storing reference strokes and edit instructions so as to have an association between each pair of reference strokes and edit instructions;
gesture judging means for judging a given edit instruction based on a result of a comparison between a shape of the handwritten line drawing and the reference stroke stared in said second memory means when an editing position for editing the document information is specified by the handwritten line drawing;
position computing means for selecting one of the different coordinate systems from said first memory means based on the given edit instruction and for computing a position of a character or character string corresponding to the editing position using a coordinate of the handwritten line drawing and the selected coordinate system;
and
document editing means for editing a character or character string at the computed position based on the given edit instruction.

6 more elements

An information processing apparatus having a gesture editing function, comprising:

a display screen for displaying thereon a document;
display input means for inputting a shape of a handwritten line drawing on said display screen;
memory means for storing therein matching patterns for use in collating an input pattern of the handwritten line drawing inputted by said display input means and edit instructions for editing the document so as to have an association between each pair of matching pattern and edit instruction;
and
set content change means including a keyboard for changing as desired the association between each pair of the matching pattern and edit instruction in said memory means, said keyboard including a gesture setting change key for inputting an instruction for displaying associations between each pair of the matching pattern and edit instruction in a list on said display screen, a change operation key for selecting either a matching pattern or an edit instruction in the list, a change candidate key for selecting a specific candidate among a group of candidates for changing a matching pattern and an edit instruction, and an execution key for confirming a selection of the specific candidate,
wherein an association between a first matching pattern and a first edit instruction is changed to an association between a second matching pattern and the first edit instruction when the first matching pattern is excluded from the group of candidates.

3 more elements

Dependencies are inferred from the claim text.