INFORMATION PROCESSING APPARATUS WITH TRACKING MECHANISM

    公开(公告)号:CA2080251A1

    公开(公告)日:1993-04-16

    申请号:CA2080251

    申请日:1992-10-09

    Applicant: CANON KK

    Abstract: An information processing apparatus effects at least one of recording, reproduction and erasure of information on a recording medium having a track groove by use of a probe electrode. Relative movement between the probe electrode and the recording medium is effected by the moving mechanism. A predetermined driving signal is inputted to the moving mechanism so that a predetermined movement of the probe electrode to the groove track is effected. The physical phenomenon caused between the probe electrode and the recording medium is detected, so that the track groove is detected and a correction value for correcting the movement of the probe electrode from the driving signal on the basis of the timing of the detection. The moving mechanism is controlled on the basis of the driving signal and the correction value.

    12.
    发明专利
    未知

    公开(公告)号:DE3781949T2

    公开(公告)日:1993-02-25

    申请号:DE3781949

    申请日:1987-07-03

    Applicant: CANON KK

    Abstract: In a method of reading a signal in a charge-storage line sensor so as to cause switching means respectively corresponding to a plurality of charge-storage means sequentially to read external signals stored after resetting and to sequentially perform resetting operations during the read operations, a dead time interval is provided in the read period of the charge-storage means, and the resetting operation is performed in a desired portion of the dead time interval after the read operation is completed.

    PHOTOELECTRIC CONVERTER WITH REDUCED CROSSTACK

    公开(公告)号:GB2139038A

    公开(公告)日:1984-10-31

    申请号:GB8404878

    申请日:1984-02-24

    Applicant: CANON KK

    Abstract: An elongated photoelectric converter unit having a good S/N characteristic but no crosstalk without using any blocking diode. The photoelectric converter comprising: a signal amplifying device having m photosensor groups each consisting of n photosensor elements and n signal amplifying elements connected to the photosensor elements in each group; first and second sample and hold device each having n sample and hold elements connected to the signal amplifying elements; first and second input signal selecting device connected to those first and second sample and hold device, respectively, each of the first and second input signal selecting device having n input signal selecting elements provided corresponding to the respective sample and hold elements of each sample and hold device; and an amplifying device for amplifying the difference between the values of the signals to be transferred from the respective first and second input signal selecting device as a signal and outputting.

    16.
    发明专利
    未知

    公开(公告)号:DE69432772D1

    公开(公告)日:2003-07-10

    申请号:DE69432772

    申请日:1994-03-08

    Applicant: CANON KK

    Abstract: An image information processing apparatus for processing image information includes a total curvature calculating unit, mean curvature calculating unit, a logical product computing unit and a median filter. A total curvature at each pixel of the image information is calculated by the total curvature calculating unit. A mean curvature at each pixel of the image information is calculated by the mean curvature calculating unit. The logical product computing unit executes computation of a logical product of outputs from the total curvature calculating unit and the mean curvature calculating unit. An output from the logical product computing unit is filtered by the median filter.

    18.
    发明专利
    未知

    公开(公告)号:AT212718T

    公开(公告)日:2002-02-15

    申请号:AT92114610

    申请日:1992-08-27

    Applicant: CANON KK

    Abstract: An information processing apparatus for effecting recording of information on and/or reproduction of information from a recording medium is provided with a probe electrode, a cantilever piezo-electric member, a controller and a detector. The probe electrode is relatively displaced to the recording medium by the cantilever piezo-electric member. The controller applies a control signal to the cantilever piezo-electric member to control the cantilever piezo-electric member. The detector detects a minute signal obtained on the tunnel effect caused between the probe electrode and the recording medium. A switch element is further provided on the apparatus so as to electrically disconnect between the cantilever piezo-electric member and the controller during the minute signal being detected by the detector.

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