• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A multi-chip type CCD color camera is designed to displace respective chips relative to an object image. The sampling action at respective CCD imager chips yields output signals having base-band components and sideband components partially overlapped with each other. In order to separate two components, frequency converting technique is introduced in the signal processing circuit, wherein these components are interchanged in frequency. It is very easy to cancel out original base-band components from respective CCD chips, because the phases of the base-band components are not influenced by chip displacement. Accordingly, there is no need to adjust precise chip alignment in order to improve the resolution of the CCD color camera.
    公开号:SU1080767A3
    申请号:SU782671700
    申请日:1978-09-14
    公开日:1984-03-15
    发明作者:Яманака Сейсуке
    申请人:Сони Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The proposed invention relates to television, in particular to apparatus for forming images on the basis of solids, where charge-coupled devices are used as such solid-state devices for imaging. A known transmitting television camera containing three (identical) channels of the red, blue and green images, respectively, each of the channels consists of a phase shift unit, a phase control unit, as well as series-connected solid-state imaging device on the device connection, a video imager, a phase detector, a low-pass filter (LPF) and a mixer, while in front of the optical input of each solid-state imager of the image signal The corresponding color filter is installed, and the second output of the solid-state image signal generator of each of the three channels is connected to the second inputs of the video signal body and phase detector through the phase offset unit and the phase control unit, respectively, and the mixers outputs of each of the three channels are connected to the corresponding input of the coding unit pj . It is extremely difficult to fine-tune the individual elements of the image in a well-known broadcast television camera with a charge-coupled device, which is predicted on crosstalk between signals. The purpose of the invention is to reduce cross-talk in a transmitting television camera of a color image signal on a charge-coupled device without performing precise adjustment of individual image elements. The goal is achieved by the fact that the transmitting television camera, containing three (identical) channels of the red, blue and green images, respectively, each of the channels consists of a phase shifter unit, a phase control unit, and serially connected solid-state imager image signal, made on the device with charge coupling, video signal generator, phase detector, low frequencies and mixer, while before the optical input of each solid-state signal generator image, the corresponding color filter is located, and the second output of the solid-state image signal generator of each of the three channels is connected to the second inputs of the video signal generator and the phase deTector via the phase shift unit and the phase control unit, respectively, and the mixers outputs of each of the three channels are connected to the corresponding encoder input unit , the sequentially connected adder, the first additional low-pass filter, the balanced modulator, the second additional low-pass filter are often introduced and a delay line, the code of which is connected to the second mixer's inputs of each of the three channels, the output of the phase detector of each channel is connected to the corresponding input of the adder, and the output of the introduced additional phase offset unit whose input is the input for clock pulses. The drawing shows a structural electrical circuit of a transmitting television camera. The proposed transmitting television camera contains the first (identical) channel I, the second (identical) channel 2, the third (identical) channel 3, locks (471 ,, 4-2, -3), phase shift, blocks 5-1, 572, 5 -3 phase controls, solid-state imagers 6-1, 6-2, 6-3 of the image signal, imagers 7-1.7-2, 7-3 of the video signal, phase detectors 8-1, 8-2, 8-3, filters 9-1, 9-2, 9-3 low frequencies, mixers 10-1, 10-2, 10-3, color filters 11-1, 11-2, 11-3, coding unit 12, adder 13, first additional filter 14 low-pass, balanced modulator 15, second additional low-pass filter 16, line delay 17, an additional block 18 phase shift. The device works as follows. The image is projected on the optical input of the first (identical) channel, the second (identical) channel 2 and the third (identical) channel 3 of the transmitting television camera on
    The basis of the device is a single-crystal type communication, where the crystals are stirred at some distance relative to each other and relative to the perceived image.
    At the outputs of the corresponding crystals, signals are formed which consist of components of the main band (frequencies) and a component of the sideband that are partially superimposed on each other. To separate the indicated frequencies, the phase offset unit 4-1, 4-2, 4-3 and the phase control unit 5-1, 5-2, 5-3 are connected to the solid state imager 6-1, 6-2, 6-3 of the image signal The output of which is connected to the shaper 7-1, 7-2, 7-3 of the video signal, the output of which is connected to the - one input of the phase detector 8-1, 8-2, 8-3.
    The original components of the baseband, which are formed at the outputs of the corresponding crystals of the solid state imager 6-1, 6-2, 6-3, of the image signal are easily suppressed due to the fact that the arrangement of the crystals does not affect the phases of these components.
    In this case, it is assumed that the first (identical) channel 1 is received as a reference, while the solid-state imager 6-1 of the image signal is shifted relative to the solid-state imager 6-2 of the image signal in the horizontal direction by the interval corresponding to the phase angle O - (- 2 " and the solid state shaper 6-3 is shifted relative to the solid state shaper 6-1 of the image signal also in the horizontal direction by an interval corresponding to phase angle 0,. At the same time, blocks 4-1, 4-2, 4-3 of phase offset and blocks 5-1, 5-2, 5-3 monitoring the phase of each of the identical channels 1, 2, 3 are connected to the second inputs, respectively, of the imager 7-1, 7-2, 7-3 of the video signal and the phase detector 8-1, 8-2, 8 -3 match identical channels 1,2,3 for correction and phase control.
    From the output of the phase detector 8-1, 8-2, 8-3, a signal is applied through the filter. low frequencies 9-1, 9-2, 9-3 to the first input of the mixer 10-1, 10-2, 10-3.
    This invention is applied not only for black and white television cameras, but also for color television transmitting cameras. In the case of color television transmitting cameras, the corresponding color filters 11-1, 11-2, 11-3 are arranged in front of the solid state imagers 6-1, 6-2, 6-3.
    Thus, the signal corresponding to the red color is obtained at the output of the solid-state imager 6-1 of the image signal, similarly, the signal corresponding to the green color is obtained on you; the course of the solid-state imager 6-2 of the image signal is obtained output solid-state imager 6-3. A signal from the output of the mixer 10-1, 10-2 10-3 is fed to the coding unit 12.
    Phase-controlled signals ;; phase detectors 8-1, 8-2, 8-3 of each of the (identical) channels 1, x 2, 3 are fed to the corresponding input of the adder 13. A signal from which through serially connected the first additional low-pass filter 14, the balanced modulator 15, The second additional low-pass filter 16 is fed to the delay line 17. At the same time, synchronizing pulses are supplied to the second input of the balanced modulator through the additional phase shifter 18. At the same time, the signal from the output of the delay line 17 is fed to the second inputs of the mixer 10-1, 10-2, 10-3 corresponding ( identical) channels 1,2. and 3.
    In the specified electrical circuit, the elimination of unwanted components in the indicated signals occurs.
    The proposed technical solution makes it possible to fully compensate for errors caused by inaccuracy in the adjustment of image elements.
    In this case, cross-talk between signals decreases, which distinguishes the proposed device from similar technical solutions.
    权利要求:
    Claims (1)
    [1]
    A TRANSMISSION TELEVISION CAMERA containing three (identical) channels of red, blue, and green image signals, respectively, each channel consisting of a phase shift unit, a phase control unit, and also solid-state image signal conditioning apparatus connected to a charge-coupled device, a video signal shaper, a phase detector, a low-pass filter (LPF) and a mixer, while in front of the optical input of each solid-state image signal shaper there is a color filter, and the second output of the solid-state image signal conditioner of each of the three channels is connected to the second inputs of the video signal conditioner and the phase detector, respectively, through the phase displacement unit and the phase control unit, and the outputs of the mixers of each of the three channels are connected to the corresponding input of the encoding unit, I’m skinny in that, in order to reduce crosstalk, a series-connected adder, the first additional low-pass filter, a balanced modulator, the second additional an efficient low-pass filter and a delay line, the output of which is connected to the second inputs of the mixers of each of the three channels, while the output of the phase detector of each channel is connected to the corresponding input of the adder, and the input of the additional phase shift unit, the input of which is the input, is connected to the second input of the balanced modulator An input for synchronizing pulses. . ,
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    同族专利:
    公开号 | 公开日
    GB2004438A|1979-03-28|
    IT7827686D0|1978-09-14|
    FR2403701B1|1985-07-26|
    JPS6156675B2|1986-12-03|
    DE2839651C2|1987-03-19|
    AU519989B2|1982-01-07|
    AT372562B|1983-10-25|
    ATA646778A|1983-02-15|
    NL7809373A|1979-03-16|
    DE2839651A1|1979-03-22|
    US4249203A|1981-02-03|
    AU3946478A|1980-03-06|
    JPS5444424A|1979-04-07|
    IT1098626B|1985-09-07|
    CA1114055A|1981-12-08|
    GB2004438B|1982-02-24|
    FR2403701A1|1979-04-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5654115B2|1974-03-29|1981-12-23|
    JPS5519553B2|1975-05-13|1980-05-27|JPS6312434B2|1980-01-31|1988-03-18|Sony Corp|
    US4404587A|1981-12-04|1983-09-13|Rca Corporation|Electrical compensation for misregistration of striped color filter in a color imager with discrete sampling elements|
    US4437764A|1981-12-04|1984-03-20|Rca Corporation|Electrical compensation for misregistration of striped color filter in a color imager with discrete sampling elements|
    JPS58137384A|1982-02-10|1983-08-15|Sony Corp|Signal processing circuit of color camera|
    US4591899A|1982-03-25|1986-05-27|Canon Kabushiki Kaisha|Color image pickup device|
    DE3211668C2|1982-03-30|1984-12-13|Robert Bosch Gmbh, 7000 Stuttgart|Process for increasing the resolution of television cameras|
    US4507679A|1982-12-16|1985-03-26|Rca Corporation|Color TV camera with four-port prism|
    US4593311A|1983-11-30|1986-06-03|Rca Corporation|Electrical registration of CCD imagers|
    DE3418787C2|1984-05-19|1991-04-11|Robert Bosch Gmbh, 7000 Stuttgart, De|
    US4644390A|1984-11-19|1987-02-17|Fuji Photo Film Co. Ltd.|Photoelectric sensor array support package|
    JPH0693756B2|1985-02-08|1994-11-16|ソニー株式会社|Edge enhancement device for solid-state color imaging device|
    FR2577669B1|1985-02-21|1992-05-15|Fuji Photo Film Co Ltd|IMAGE READING METHOD AND APPARATUS|
    DE3686358T2|1985-05-27|1993-02-25|Sony Corp|OPTICAL LOW-PASS FILTER FOR A SOLID-COLOR CAMERA.|
    JP2580560B2|1985-05-28|1997-02-12|ソニー株式会社|Solid color imaging device|
    JP2773324B2|1989-11-27|1998-07-09|ソニー株式会社|Imaging device|
    US5315412A|1990-04-06|1994-05-24|Canon Kabushiki Kaisha|Multi-chip color image sensor with light-receiving windows arranged to provide sensor output signals corresponding to the gap between adjacent sensors|
    KR940004433B1|1991-02-26|1994-05-25|삼성전자 주식회사|Method and apparatus for moving picture element by using sample and holding method|
    JP3350087B2|1992-03-18|2002-11-25|株式会社東芝|Solid color imaging device|
    JPH0984028A|1995-09-11|1997-03-28|Sony Corp|Luminance signal generating circuit|
    EP2001244B1|2006-03-24|2018-08-08|Panasonic Corporation|Signal processing method and signal processing device|
    GB2456771A|2008-01-22|2009-07-29|Sharp Kk|Spectrally compensating a light sensor|
    EP3709623A1|2019-03-15|2020-09-16|Aptiv Technologies Limited|Method for simulating a digital imaging device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP52110878A|JPS6156675B2|1977-09-14|1977-09-14|
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