Facsimile and static presentation processing – Facsimile – Facsimile system interface
Reexamination Certificate
1998-07-14
2001-05-22
Grant, II, Jerome (Department: 2724)
Facsimile and static presentation processing
Facsimile
Facsimile system interface
C358S504000, C358S451000, C382S101000, C375S365000
Reexamination Certificate
active
06236467
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an image reading device in which an image, recorded in a film, for example, is read by a line sensor, and is transmitted to a computer so that the image is indicated by a display device connected to the computer.
2. Description of the Related Art
Conventionally, there is known an image reading device in which a pre-scanning operation is performed prior to a regular scanning operation. In the pre-scanning operation, an image recorded in a film is read by a line sensor with a relatively coarse pitch and pixel data corresponding to the image are transmitted to a computer, for example, so that the image is indicated on a surface of a display device of the computer. By observing the image, which is obtained by the pre-scanning operation and indicated by the display device, it can be determined whether the regular scanning operation is to be performed.
In the regular scanning operation, the image recorded in the film is read with a pitch finer than that of the pre-scanning operation, and pixel data of the read image are transmitted to the computer. Namely, in the regular scanning operation, the same operations as those of the pre-scanning operation are performed, except that the reading pitch is relatively fine in the regular scanning operation.
The transmittance time, for which the pixel data corresponding to the image are transmitted to the computer, is longer than a reading operation carried out using the line sensor. Therefore, during the transmitting operation, the executions of the other processes are restricted, and thus a high operating efficiency of the image reading device is not possible.
SUMMARY OF THE INVENTION
Therefore, an object of the present invention is to provide an image reading device by which pixel data can be transmitted to a computer, which is provided-outside the image reading device, in a short time in comparison with a conventional device.
According to the present invention, there is provided an image reading device comprising a first image processor, a second image processor and a correction determining processor.
The first image processor reads an image recorded in a read object, applies a first image correction to first pixel data corresponding to the image, and transmits the first pixel data to an external device which is provided outside the image reading device. The second image processor reads the image, applies a second image correction to second pixel data corresponding to the image, and can transmit the second pixel data to the external device. The correction determining processor determines whether the first image correction corresponds to the second image correction. The second image reading processor can prohibit transmission of third pixel data, which are included in the first and second pixel data, to the external device when the correction determining processor determines that the first image correction is the same as the second image correction.
Further, according to the present invention, there is provided an image reading device comprising a first image processor, a second image processor and a correction determining processor.
The first image processor reads an image recorded in a read object, applies a first image correction to first pixel data corresponding to the image, and transmits the first pixel data to an external device which is provided outside the image reading device. The second image processor reads the image, applies a second image correction to second pixel data corresponding to the image, and can transmit the second pixel data to the external device. The correction determining processor determines whether the first image correction corresponds to the second image correction. The external device applies an image process to the first pixel data when the correction determining processor determines that the first image correction is the same as the second image correction.
Furthermore, according to the present invention, there is provided an image reading device comprising a first image processor, a second image processor and a reading pitch setting processor.
The first image processor reads an image recorded in a read object with a first reading pitch, and transmits first pixel data corresponding to the image to an external device which is provided outside the image reading device. The second image processor reads the image with a second reading pitch, and transmits second pixel data corresponding to the image to the external device. The reading pitch setting processor sets the first and second reading pitches. The second image processor can prohibit transmission of third pixel data, which are included in the first and second pixel data, to the external device when the second reading pitch is greater than or equal to the first reading pitch.
REFERENCES:
patent: 5189529 (1993-02-01), Ishiwata
patent: 5489769 (1996-02-01), Kubo
patent: 5563955 (1996-10-01), Bass et al.
Asahi Kogaku Kogyo Kabushiki Kaisha
Grant II Jerome
Greenblum & Bernstein P.L.C.
Kianni Kevin
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