SOLID STATE COLOUR CAMERA COLOUR SEPARATION SAMPLE/HOLD CIRCUIT

    公开(公告)号:AU550946B2

    公开(公告)日:1986-04-10

    申请号:AU8640382

    申请日:1982-07-26

    Applicant: SONY CORP

    Abstract: A dot sequential color signal which is generated in an image pick-up means, as for example a CCD type image sensor is supplied to a first sampling and hold (S/H) circuit, with the frequency of the sampling pulse used in the first S/H circuit being at a predetermined frequency (FO), and the output of the first S/H circuit is supplied to a second S/H circuit, with the frequency of the sampling pulse used in the second S/H circuit being selected to be N times of the predetermined frequency (NFo), so that the frequency of the sampling noise caused by the sampling operation is relatively high compared with the output signal of the image pick-up means, and thus the cut-off frequency of a low pass filter for eliminating the sampling noise can be selected to be high enough not to attenuate the desired signal.

    SAMPLE HOLD CIRCUIT FOR AN IMAGE PICK-UP DEVICE

    公开(公告)号:CA1191596A

    公开(公告)日:1985-08-06

    申请号:CA408257

    申请日:1982-07-28

    Applicant: SONY CORP

    Abstract: A dot sequential color signal which is generated in an image pick-up means, as for example a CCD type image sensor is supplied to a first sampling and hold (S/H) circuit, with the frequency of the sampling pulse used in the first S/H circuit being at a predetermined frequency (FO), and the output of the first S/H circuit is supplied to a second S/H circuit, with the frequency of the sampling pulse used in the second S/H circuit being selected to be N times of the predetermined frequency (NFo), so that the frequency of the sampling noise caused by the sampling operation is relatively high compared with the output signal of the image pick-up means, and thus the cut-off frequency of a low pass filter for eliminating the sampling noise can be selected to be high enough not to attenuate the desired signal.

    IMAGING DEVICE AND IMAGING METHOD
    5.
    发明公开
    IMAGING DEVICE AND IMAGING METHOD 有权
    ABBILDUNGSVORRICHTUNG UND ABBILDUNGSVERFAHREN

    公开(公告)号:EP2169947A4

    公开(公告)日:2011-04-06

    申请号:EP07830123

    申请日:2007-10-12

    Applicant: SONY CORP

    Abstract: In a high speed image capturing state, a camera signal processing circuit is not needed to perform a signal process at a high screen rate, but at a regular screen rate. In the high speed image capturing mode, raw data of 240 fps received from an image sensor 101 are recorded on a recording device 111 through a conversion processing section 201 and a recording device controlling circuit 210. Raw data that have been decimated and size-converted are supplied to a camera signal processing circuit 203 through a pre-processing circuit 202 and an image being captured is displayed on a display section 112 with a signal for which a camera process has been performed. In a reproducing state, raw data are read from the recording device 111 at a low screen rate according to a display performance of the display section 112 and the raw data that have been read are processed are processed by the pre-processing circuit 202 and the camera signal processing circuit 203 and a reproduced image is displayed by the display section 112.

    Abstract translation: 在高速图像捕获状态下,不需要相机信号处理电路以高屏幕速率,而是以常规屏幕速率执行信号处理。 在高速图像拍摄模式中,从图像传感器101接收的240fps的原始数据通过转换处理部分201和记录装置控制电路210被记录在记录装置111上。已被抽取和尺寸转换的原始数据 通过预处理电路202被提供给相机信号处理电路203,并且正在捕获的图像被显示在具有已进行相机处理的信号的显示部分112上。 在再现状态下,根据显示部分112的显示性能,并且已经被读取的原始数据被处理前处理电路202处理,以低屏幕速率从记录装置111读出原始数据, 相机信号处理电路203和再现图像由显示部分112显示。

    SOLID-STATE IMAGE PICKUP DEVICE HAVING A COLOR FILTER

    公开(公告)号:CA2054055A1

    公开(公告)日:1992-05-09

    申请号:CA2054055

    申请日:1991-10-23

    Applicant: SONY CORP

    Inventor: SASE MASATOSHI

    Abstract: A solid-state image pickup device is comprised of an array of light receiving elements arranged in a two-dimensional matrix fashion, and a color filter array composed of color filters respectively located in front of the light receiving elements, wherein the color filter array has a fundamental unit of color filters of 8 pixels formed of 2 pixels in the scanning direction and 4 pixels in the direction perpendicular to the scanning direction, and the arrangement of the fundamental unit is selected as a b a c a b c a where a, b and c represent a color filter of a first primary color, a color filter of a second primary color and a color filter of a third primary color, respectively.

    VIDEOSIGNAL MIXING CIRCUIT
    8.
    发明专利

    公开(公告)号:DE3277052D1

    公开(公告)日:1987-09-24

    申请号:DE3277052

    申请日:1982-12-10

    Applicant: SONY CORP

    Abstract: A plurality of sampled outputs Y H1 , Y H2 which differ in phase by 2π/N from one another are mixed together. The sampled outputs are sequentially supplied by a switch 63 to a holding circuit 64, 65 whereby the deterioration of the high frequency characteristic of the synthesized output signal due to low-pass filter effects stemming from the zero hold in the sample/hold circuit can be prevented.

    SIGNAL PROCESSING CIRCUIT FOR IMAGE SENSOR

    公开(公告)号:CA1202411A

    公开(公告)日:1986-03-25

    申请号:CA447648

    申请日:1984-02-16

    Applicant: SONY CORP

    Abstract: There is disclosed a signal processing circuit for an image sensor. This circuit comprises: an image sensor having an optical black level detecting portion (i.e., an optical black); a buffer circuit for receiving an output signal from the image sensor; a clamping circuit for receiving an output from the buffer circuit; and a low-pass filter provided between the buffer circuit and the clamping circuit. This low-pass filter is made operative by a switching circuit in the interval responsive to the black level detecting portion in the output signal of the image sensor, while it is made inoperative in the interval responsive to the image pickup signal detecting portion. According to this circuit, the black level drift can be followed, thereby preventing the appearance of line noise on the screen without being influenced by the sag component due to the AC coupling.

    SAMPLE/HOLD CIRCUIT ARRANGEMENTS
    10.
    发明专利

    公开(公告)号:GB2103051A

    公开(公告)日:1983-02-09

    申请号:GB8221788

    申请日:1982-07-28

    Applicant: SONY CORP

    Abstract: A dot sequential color signal which is generated in an image pick-up means, as for example a CCD type image sensor is supplied to a first sampling and hold (S/H) circuit, with the frequency of the sampling pulse used in the first S/H circuit being at a predetermined frequency (FO), and the output of the first S/H circuit is supplied to a second S/H circuit, with the frequency of the sampling pulse used in the second S/H circuit being selected to be N times of the predetermined frequency (NFo), so that the frequency of the sampling noise caused by the sampling operation is relatively high compared with the output signal of the image pick-up means, and thus the cut-off frequency of a low pass filter for eliminating the sampling noise can be selected to be high enough not to attenuate the desired signal.

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