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    COLOR TELEVISION CAMERA
    42.
    发明专利
    COLOR TELEVISION CAMERA 未知

    公开(公告)号：CA934057A

    公开(公告)日：1973-09-18

    申请号：CA93372

    申请日：1970-09-17

    Applicant: SONY CORP

    Inventor： KUBOTA YASUHARU

    IPC: H01J29/45 ,  H01J31/46 ,  H04N9/077

    Abstract: A color television camera utilizing a vidicon tube that has a filter in the form of alternate stripes for the primary colors red, green and blue, a pair of electrodes for each set of three stripes and a photoconductive layer, an alternating voltage is applied to the electrodes to provide a predetermined pattern on the surface of the photoconductive layer in the form of an index signal which is overlapped on the photoconductive layer with the image to be reproduced. The composite signal on the photoconductive layer of an index signal and a color video signal is fed through the same terminals that applied the reference alternating voltage to the electrodes to a circuit which separates the color video signal from the index signal. The index signal is then applied to three demodulators to obtain the color video signals.

    43.
    发明专利
    未知

    公开(公告)号：DE2258029A1

    公开(公告)日：1973-05-30

    申请号：DE2258029

    申请日：1972-11-27

    Applicant: SONY CORP

    Inventor： KUBOTA YASUHARU ,  SHINONO RYUJI

    IPC: H04N5/202 ,  H04N9/07 ,  H04N9/077 ,  H04N9/69 ,  H04N9/53

    Abstract: In a gamma correction circuit for a color television camera, a luminance signal is supplied to one input of a non-linear conducting circuit, preferably including at least one semiconductor diode, so as to vary the conductance of such diode, while a chrominance signal is supplied to another input of the non-linear conducting circuit to provide a gamma corrected chrominance signal as the output therefrom.

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