Liquid crystal cells – elements and systems – With specified nonchemical characteristic of liquid crystal... – Within nematic phase
Patent
1996-12-16
1999-08-17
Lao, Lun-Yi
Liquid crystal cells, elements and systems
With specified nonchemical characteristic of liquid crystal...
Within nematic phase
345157, 463 37, G09G 508
Patent
active
059401583
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to pointing device, particularly, a device which performs pointing utilizing finger pressure.
BACKGROUND ART
Personal computers and the like require means for moving a cursor on a CRT (cathode-ray tube) to a desired position where necessary data are input. Specifically, when using a software having graphic function, opening points and terminating points for shapes frequently have to be designated using such means. Also, when using a software having word processor function, the position where characters and the like are to be input and a desired choice is being displayed are designated using such means.
To perform this position designation, a mouse or arrow key of the keyboard is used. When using the mouse rather than the arrow key, the cursor can be moved as desired in an oblique direction as well as up-down and right-left. A click of a button attached on the mouse can easily input the data necessary to a selected designated position. That is, a pointing procedure using the mouse is more rapid than using the arrow key.
Also, in the use of the mouse a user can obtain a human sense of the procedure because the cursor moves in the same direction as the mouse is moved.
Thus, the mouse has been generally used as a pointing device for personal computers.
The above-mentioned conventional devices have the following problems.
The mouse requires space to operate it around the personal computer because the mouse needs to be able to be moved in any right-left and up-down direction on a plane. Usually such a space is provided on a corner of a table on which the personal computer is disposed, resulting in limitations in space available to arrange files and the like.
Also, because there is usually a limitation in space to operate in order to move the mouse to a distant place, not one move but several moves of the mouse is required. This results in a gap between the human operating sense and the move of mouse.
DISCLOSURE OF THE INVENTION
The object of the present invention is to provide an input pointing device capable of solving the problems described above, and obtaining the human operating sense without a large amount of space.
The input device according to the present invention is provided around a writing instrument, and comprises pressure detecting means for detecting pressures applied by the fingers of a writing worker, displaying means for receiving the outputs showing finger pressures from the pressure detecting means and thereby moving a cursor display on the screen. Therefore, the writing worker or a user of the pen-grip type input device can move the cursor to a desired position with only pressures applied by his fingers. Therefore, there is no limitation in space available to arrange files and the like. This results in effective operation within a space around the personal computer because there is no need to provide a specific space to operate the mouse in the space.
Also, the writing worker can increase the moving speed of the cursor by only increasing the applied finger pressures. Therefore, the writing worker can obtain a human sense of the operations because the movement of the cursor corresponds to the applied finger pressure.
The input device according to the present invention also comprises a held state recognizing means for receiving outputs from gravity detecting means provided around the writing instrument and thereby recognizing the held state of the writing instrument. Therefore, it can recognize the held state of the writing instrument and the corresponding relationship between the pressure detecting means and fingers.
The input device according to the present invention comprises pressure detecting means having an elastic member and strain gauges provided with the elastic member. Therefore, it can detect correctly the finger pressures.
The input device according to the present invention is provided with a fixing signal generating means for generating and outputting a fixing position to fix the position of the cursor, and with outputting means
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patent: 5004871 (1991-04-01), Purcell
patent: 5095510 (1992-03-01), Webster
patent: 5358343 (1994-10-01), Klauber
Japan Nesamac Corporation
Lao Lun-Yi
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