JPH10271264A - Scanner device and information processing device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the transmission image data and to reduce the transfer time without sending any place other than the effective image area. SOLUTION: Image data read by a scanner device is sequentially stored in a memory. At that time, the image area is calculated from the print settings of the connected scanner device,
The coordinates of points A and D are determined. When data other than white comes for the first time during the development, the point is defined as point B.
In order to detect the point C, a point other than white is read, and coordinate data of the points B and C are determined. A, B, C,
When the point D is analyzed, the transfer in this mode is transmitted to the information processing apparatus. If the information processing apparatus that has received the information does not support the receiving method, it responds to that effect,
Empty data transfer is performed from point to point B and from point C to point D. A, B, C, D for supported responses
Each point is sent, and then transfer starts from point B, and ends when point C is reached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scanner device for reading a frame area and an effective image area of image information,
The present invention also relates to an image information processing apparatus that analyzes a frame area and effective image area information from the scanner apparatus and receives an original effective image area.

[0002]

2. Description of the Related Art In some cases, a scanner device is compared with a device in which the data transfer direction of a printer device is reversed. However, unlike a printer, a scanner device rarely transmits data in a language.
Basically, image data is transferred. The conventional scanner control device transfers the data read by the scanner device as it is to the information processing device.

On the other hand, in the world of serial printers, which is one of the printer apparatuses, for example, Japanese Patent Laid-Open No. 8-33701 is disclosed.
As in the invention described in Japanese Patent Laid-Open Publication No. H10 (1994), the previous line data is compared line by line, and in the case of the same, no data is output on the host side, so that the transfer time is saved. In this case, a special command is prepared to reduce the number of transfers extremely to save money.

However, when the number of data on a line is small as in the case of a serial printer, the above-described method is used.
Although this is one method of reducing data, in the case of a printer or a scanner, the line comparator alone becomes very large, takes much time, and cannot be said to be an effective solution.

[0005]

As described above, the means using a line comparator is a method of reducing one data when the number of data on a line is small as in a serial printer. Is very large even with the line comparator alone, and it takes much time, which is not a special measure.

SUMMARY OF THE INVENTION The object of the present invention is to prepare a command on the scanner side and to reduce the transmission image data and reduce the transfer time by using the command without sending any portion other than the effective image area. Things.

[0007]

According to a first aspect of the present invention, there is provided a scanner for reading image information and transmitting the read image information to an image information processing apparatus. A starting point and an ending point of an area are obtained, and the area is transferred to the information processing apparatus based on these points.

According to a second aspect of the present invention, image information is read,
In the input information for transmitting the read image information to the image information processing apparatus, from the result of the generated frame image, calculate the leftmost point, the rightmost point, the uppermost point, and the lowermost point where dots are formed. The coordinate data is transferred to the information processing apparatus.

According to a third aspect of the present invention, in an information processing apparatus for receiving a frame image generated by a scanner device, information transferred from the scanner device is analyzed, and information on a start / end point of a frame area, an effective image area, When it is determined that the information is the start point / end point information, the effective image area is received based on the information.

[0010]

FIG. 1 is a diagram showing an example of a minimum system configuration according to the present invention. A scanner device 10 uses points A, B, C and D in FIG.
A scanner driver having a transfer unit capable of transferring the area (frame area) and the effective image area 40 to the information processing apparatus 20 is provided. The information processing device 20 has a function of forming an image based on the transferred information of the four points.

First, an attempt is made to create an image read by the scanner device 10, and the image data read by the scanner device 10 is sequentially stored in a memory. The image area is calculated from the resolution of the scanner device connected at that time, the margin set for printing, and other printing settings.
Find the coordinates of point D.

When data other than white comes for the first time during the development, the point is defined as point B. Although valid data continues, data that comes next other than white is updated as needed.
When the data transfer is completed, points other than white are read to detect the point C, and the coordinate data of the points B and C are determined.

When the points A, B, C, and D are analyzed, the transfer in this mode is transmitted to the information processing apparatus 20. If the information processing device 20 that has received the information supports the receiving method, it returns a response to that effect. If not supported, respond accordingly. Then, empty data transfer is performed from point A to point B and from point C to point D. On the other hand, in the case of a supported response, points A, B, C, and D are sent, respectively. Thereafter, transfer from point B is started, and transfer is completed when point C is reached. No data outside the points B and C is transmitted.

[0014]

As is apparent from the above description, according to the present invention, in a scanner device for transmitting image data as it is as scanner data, data transfer outside the effective image area is not performed. By omitting the transfer of data, and by avoiding unnecessary data transfer of the white portion, the transfer can be performed at higher speed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system configuration example of the present invention.

FIG. 2 is a diagram illustrating an effective image area.

[Explanation of symbols]

10: scanner device, 20: information processing device, 30: paper, 40: effective image area.

Claims (3)

[Claims] 1. A scanner device for reading image information and transmitting the read image information to an image information processing apparatus, wherein a start point and an end point of a frame area and a start point and an end point of an effective image area are obtained from input information. A scanner device for transferring the information to the information processing apparatus based on 2. An input information for reading image information and transmitting the read image information to an image information processing apparatus, based on a result of a generated frame image, a leftmost point, a rightmost point, and an uppermost point to be dot-printed. , Calculating the lowest point and transferring the coordinate data to the information processing apparatus. 3. An information processing apparatus which receives a frame image generated by a scanner device, analyzes information transferred from the scanner device, and starts / ends information of a frame area and start / end information of an effective image area. An image information processing apparatus characterized by receiving an effective image area based on the information when the information processing apparatus determines that the information is an image information.