Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Reexamination Certificate
1994-01-18
2001-01-23
Sax, Steven (Department: 2773)
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
C345S215000
Reexamination Certificate
active
06177934
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a server device, more particularly, to a server device to which a plurality of image readers can be connected.
2. Related Background Art
A printer server device to which a plurality of printers can be connected has been conventionally well known. However, a device to which a plurality of image readers (scanner device) can be connected is not yet known as a conventional server device.
Since a plurality of image readers which can be connected to such a server device do not always have the same reading characteristics and may have sometimes ones, there arises a problem that a host computer cannot be aware of the characteristics of those image readers.
In connection with the above described system, the following U.S. Patents have been issued to the present applicant.
U.S. Pat. No. 4,563,706
U.S. Pat. No. 4,476,486
U.S. Pat. No. 4,866,532
U.S. Pat. No. 4,658,299
U.S. Pat. No. 4,760,458
U.S. Pat. No. 4,797,706
U.S. Pat. No. 4,679,074
U.S. Pat. No. 4,739,397
U.S. Pat. No. 4,949,188
U.S. Pat. No. 4,989,042
Further, the applicant has also filed the U.S. patent application Ser. No. 939,144.
SUMMARY OF THE INVENTION
The present invention is made to overcome the foregoing problems. Therefore, it is an object to provide a system and a device for use in the system which can easily be aware of the characteristics of other devices connected through a server device.
It is another object according to the present invention to provide a system and a device for use in the system which can easily be aware of the characteristics of an image reader connected with a server device.
To accomplish the above objects, there is disclosed a system according to the preferred embodiment of the present invention wherein each reading characteristic of a plurality of image readers can be transferred (transmitted) to the host computer. There is disclosed in detail a system wherein the reading characteristic of each reader is shown as colour reading (plural colours) or single colour (hereinafter “mono colour”) reading.
It is still another object to provide a system and a device for use in the system having a server with a novel function which compresses image data in a manner to have multi digit values.
It is further object to provide an image processing method which can apply to each of the above described systems.
It is still further object to provide a system and a device for use in the system having a server with a novel function which processes a colour image.
Other objects and features of the present invention will be apparent from a reading of the following description of the embodiment and consideration of the accompanying drawings.
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Fukuda Yasuo
Hashimoto Yasuhiko
Kobayashi Shigetada
Mita Yoshinobu
Negishi Tsutomu
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Sax Steven
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