Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
1994-04-29
2001-02-20
Wu, Xiao (Department: 2774)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
Reexamination Certificate
active
06191777
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to image forming apparatus and, more particularly, is directed to a portable graphic computer apparatus suitably used by children to draw a picture.
2. Description of the Prior Art
When drawing a picture, children used to draw a picture on a drawing paper with crayons and colored pencils, in which case a mistake on the picture could not be corrected with ease. Also, the children could not express their ideas freely by drawing pictures because the number of drawing papers is restricted.
Therefore, an image forming apparatus has been proposed, in which a tablet having, for example, a coordinates detecting apparatus, a personal computer having a software for processing inputted coordinates and a television monitor for displaying a video signal generated from the personal computer are combined to display a locus drawn on the tablet on a picture screen of the television monitor. In this case, the picture displayed on the monitor can be corrected with great ease, and the user can draw pictures freely over and over.
An electronic picture drawing apparatus is disclosed, for example, in U.S. Pat. No. 4,764,763. In this picture drawing apparatus, coordinates are inputted by moving a cursor on a display panel by turning right and left knobs. Accordingly, the fundamental idea of this apparatus is different from that of the present invention.
However, since the tablet having the coordinates detecting apparatus and the personal computer having the predetermined software are independently provided as described above, the overall arrangement of the apparatus becomes large in size and the interconnection thereof becomes complicated. There is then the disadvantage that children cannot use this apparatus with ease.
Furthermore, in order to realize the above-mentioned portable graphic computer apparatus in actual practice, colors of, for example, a picture displayed on the picture screen of the television monitor must be changed in a version of, for example, 10 different colors, and various functions such as an eraser function and the like must be provided additionally. This needs many more operation buttons for designating colors and functions. If mechanical switch buttons are increased in this way, the mechanical portion thereof becomes complicated in arrangement and the manufacturing cost is increased.
Moreover since electronic, relatively expensive image forming apparatus is utilized, it is desirable that other more sophisticated functions than the drawing are also provided.
OBJECTS AND SUMMARY OF THE INVENTION
Accordingly, it is a general object of the present invention to provide an improved portable graphic computer apparatus which can eliminate the aforenoted shortcomings and disadvantages encountered with the prior art.
More specifically, it is an object of the present invention to provide a portable graphic computer apparatus in which an overall arrangement is accommodated within a cabinet and is simplified so that this graphic computer can be suitably used by children.
Another object of the present invention is to provide a portable graphic computer apparatus in which the mechanical portion can be simplified in arrangement and other functions can be extended additionally.
Still another object of the present invention is to provide a portable graphic computer apparatus in which, if a display device is mounted on a cabinet as an output device, the overall arrangement can be more simplified, and a coordinate portion and a video image display portion are provided close to each other, thus making this graphic computer apparatus more useful.
A further object of the present invention is to provide a portable graphic computer apparatus in which an alarm sound is emanated so that the user can be prevented from leaving a power switch in its ON state inadvertently.
Still a further object of the present invention is to provide a portable graphic computer apparatus in which demonstration video data is formed after a predetermined period of time so that this graphic computer apparatus is suitably exhibited at shop front for demonstration.
Still a further object of the present invention is to provide a portable graphic computer apparatus in which a tracing sheet can be provided on a tablet with ease.
Yet a further object of the present invention is to provide a portable graphic computer apparatus in which a tracing sheet mounted on a tablet is used by the children to do a kind of learning so that this graphic computer apparatus becomes more convenient.
As a first aspect of the present invention, a portable graphic computer apparatus is comprised of a tablet for inputting coordinates data, a detecting device for detecting the coordinates data inputted by the tablet, a video image data forming device for forming video image data corresponding to input coordinates based on coordinates data by an output signal from the detecting device, a memory for storing the video image data, a video signal generating device for generating a video signal from the video image data, an output device connected to the video signal generating device for outputting the video signal, a cabinet for accommodating therein elements from the tablet to the video signal generating device, and a plurality of color selecting buttons formed on the tablet for selecting color informations of the video image data, wherein the video image forming device identifies the designation of the color selecting buttons and forms the video image data on the basis of the designated color.
As a second aspect of the present invention, a portable graphic computer apparatus is comprised of a tablet for inputting coordinates data, a detecting device for detecting the coordinates data inputted by the tablet, a video image data forming device for forming video image data corresponding to input coordinates based on coordinates data by an output signal from the detecting device, a memory for storing the video image data, video signal generating device for generating a video signal from the video image data, output device connected to the video signal generating device for outputting the video signal, a cabinet for accommodating therein elements from the tablet to the video signal generating device, and a plurality of tool selecting buttons formed on the tablet for selecting the output form of the video image data, wherein the video image forming device identifies the designation of the tool selecting buttons and for forming the video image data on the basis of the designated tool.
As a third aspect of the present invention, a portable graphic computer apparatus is comprised of a tablet for inputting coordinates data, a detecting device for detecting the coordinates data inputted by the tablet, a video image data forming device for forming video image data corresponding to input coordinates based on coordinates data by an output signal from the detecting device, a memory for storing the video image data, a video signal generating device for generating a video signal from the video image data, an output device connected to the video signal generating device for outputting the video signal, a cabinet for accommodating therein elements from the tablet to the video signal generating device, and a device for mounting on peripheral portions of the tablet in the cabinet a tracing sheet for tracing the tablet.
As a fourth aspect of this invention, a portable graphic computer apparatus is comprised of a tablet for inputting coordinates data, a detecting device for detecting the coordinates data inputted by the tablet, a video image data forming device for forming video image data corresponding to input coordinates based on coordinates data by an output signal from the detecting device, a memory for storing the video image data, a video signal generating device for generating a video signal from the video image data, an output device connected to the video signal generating device for outputting the video signal, a cabinet for accommodating therein elements from the tablet to
Kashii Masaharu
Marusawa Miyuki
Wada Jo
Yasuhara Nae
Sonnenschein Nath & Rosenthal
Sony Corporation
Wu Xiao
LandOfFree
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