2.
    发明专利
    未知

    公开(公告)号:DE3850066D1

    公开(公告)日:1994-07-14

    申请号:DE3850066

    申请日:1988-12-02

    Applicant: IBM

    Abstract: Documents, such as bank checks, are processed at a high rate of speed on an image processing system which optically scans the documents and converts optically perceptible data on the documents into video image data. The video image data from the scanner (20) is compressed (26) by data compression techniques and the compressed data is sent over a high speed data channel (30) to a high speed mass storage device (40) which receives and temporarily stores the data. A lower speed mass data storage device (54), such as an optical disk, is connected for receiving at a lower data transfer rate the compressed video image data and for storing the video image data for subsequent retrieval. The system also includes real-time quality control systems (24) for monitoring the quality of the image data to detect the existence of unacceptable image quality data and for generating a signal which can be used for immediately stopping the generation of unacceptable quality image data.

    4.
    发明专利
    未知

    公开(公告)号:DE3850066T2

    公开(公告)日:1994-12-01

    申请号:DE3850066

    申请日:1988-12-02

    Applicant: IBM

    Abstract: Documents, such as bank checks, are processed at a high rate of speed on an image processing system which optically scans the documents and converts optically perceptible data on the documents into video image data. The video image data from the scanner (20) is compressed (26) by data compression techniques and the compressed data is sent over a high speed data channel (30) to a high speed mass storage device (40) which receives and temporarily stores the data. A lower speed mass data storage device (54), such as an optical disk, is connected for receiving at a lower data transfer rate the compressed video image data and for storing the video image data for subsequent retrieval. The system also includes real-time quality control systems (24) for monitoring the quality of the image data to detect the existence of unacceptable image quality data and for generating a signal which can be used for immediately stopping the generation of unacceptable quality image data.

    APPARATUS AND METHOD FOR READING A TWO-DIMENSIONAL BAR CODE

    公开(公告)号:DE3572554D1

    公开(公告)日:1989-09-28

    申请号:DE3572554

    申请日:1985-05-21

    Applicant: IBM

    Abstract: The present invention relates to apparatus for reading a two-dimensional bar code having bars located nominally at a predetermined pitch comprising means (20) for scanning the bar code with a plurality of spaced apart scan lines, means for generating for each scan line a sequence of elements of image data, recognition means (6) for recognising the bar code from the sequences of elements of image data, and transferring means (5) for selectively transferring the sequences of elements of image data to the recognition means (6). … Apparatus in accordance with the invention is characterised in that the transferring means (5) comprises indicator generating means (21, 22, 23, 24, 25, 26, 30, 31, 32, 33, 34) for generating for each of the sequences of elements of image data an indicator representing the likelihood that the sequence represents the scanning of a portion of a bar, and profile vector constructing means (28) for constructing a plurality of profile vectors from selected ones of the indicators. The apparatus also includes comparison means in the programmed logic array (35) for determining for each profile vector which of the sequences of elements of image data, the indicators of which are used to construct the profile vector, represent the scanning of a portion of a bar and which of the sequences represent the scanning of a space between adjacent bars. The apparaturs further includes in the programmed logic array (35) means for selectively transferring to the recognition means (6) only those sequences of elements of image data which represent the scanning of a portion of a bar and disregarding all other sequences. … The invention also relates to a method of reading a two-dimensional bar code having bars located nominally at a predetermined pitch utilising apparatus as above.

Patent Agency Ranking