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    PICTURE QUALITY ADJUSTING CIRCUIT
    1.
    发明专利
    PICTURE QUALITY ADJUSTING CIRCUIT 未知

    公开(公告)号：GB2104342A

    公开(公告)日：1983-03-02

    申请号：GB8224672

    申请日：1981-12-25

    Applicant: SONY CORP

    Inventor： TOYODA NAOKUNI ,  HOSOYA MITSURU ,  TSUCHIYA TAKAO

    IPC: H04N5/208 ,  H04N5/14 ,  H04N5/48

    Abstract: PCT No. PCT/JP81/00408 Sec. 371 Date Aug. 24, 1982 Sec. 102(e) Date Aug. 24, 1982 PCT Filed Dec. 25, 1981 PCT Pub. No. WO82/02312 PCT Pub. Date Jul. 8, 1982.In order to improve picture quality, an input video signal is added to a correcting signal which is formed by the secondary differentiation of the input video signal. White peak current is reduced so that white blur is avoided without adversely affecting the picture quality on the black side.

    PICTURE QUALITY ADJUSTING CIRCUIT
    4.
    发明专利
    PICTURE QUALITY ADJUSTING CIRCUIT 失效

    公开(公告)号：JPS57109479A

    公开(公告)日：1982-07-07

    申请号：JP18649580

    申请日：1980-12-26

    Applicant: SONY CORP

    Inventor： SEYA MITSURU ,  TSUCHIYA TAKAHISA ,  TOYODA NAOKUNI

    IPC: H04N5/208 ,  H04N5/14

    Abstract: PURPOSE:To prevent white blur by suppressing only the quantity of correction of the white side against a video signal component of large amplitude, and also to sufficiently correct a video signal of small amplitude or intermediate amplitude. CONSTITUTION:When an input video signal Si is supplied to an input terminal 1, the signal Si is supplied to not only an adding circuit 3 but also a secondary differentiating circuit 4. The circuit 4 differentiates the signal Si 2 times, and forms a correcting signal S1 as its output. The signal S1 is supplied to a level adjusting means 5, a correcting signal S2 from the means 5 is supplied to a suppressing circuit 6 of the large amplitude white side, and a correcting signal S3 by which a large amplitude component of the white side of the signal S2 has been suppressed is obtained as its output. This signal S3 is supplied to the adding circuit 3 through an inverting circuit 7, and to an output terminal 8 of the circuit 3, an output video signal SD on which the correcting signal has been superposed is obtained. In this way, white blur is prevented, and also a large amplitude black side component, and a level of a part which cannot reach a white peak are not suppressed, therefore, its sharpness is improved.

    Black level compensating circuit
    5.
    发明专利
    Black level compensating circuit 失效
    黑电平补偿电路

    公开(公告)号：JPS58181374A

    公开(公告)日：1983-10-24

    申请号：JP6334382

    申请日：1982-04-16

    Applicant: Sony Corp

    Inventor： TOYODA NAOKUNI ,  MATSUZAKI ATSUSHI

    IPC: H04N5/18 ,  H04N5/16 ,  H04N5/57

    CPC classification number: H04N5/165

    Abstract: PURPOSE:To obtain a reproducing screen with wide dynamic range, by blanking a luminance signal with a pulse obtained through differentiation and shaping of the luminance signal, and preventing the shift in black level. CONSTITUTION:The luminance signal Sy is subjected to blanking with a blanking pulse Pb formed with horizontal and vertical pulses. This blanking luminance signal S1 is extracted by holding it at a black peak level. A pulse P12 is obtained by differentiating and shaping the luminance signal Sy at a differentiation circuit 11 and a wave shaping circuit 12. The luminance signal Sy is subjected to blanking with the pulse P12. Further, a black level compensation circuit is provided with a blanking circuit 1, current mirror circuits 2, 3, black peak hold circuit 4, comparison circuit 5, and a clamp circuit 6; and a luminance signal S6 in which the substantial black level is changed to the pedestal level is obtained.

    Abstract translation: 目的：为了获得具有宽动态范围的再现屏幕，通过利用通过亮度信号的微分和整形获得的脉冲对亮度信号进行消隐，并防止黑电平的偏移。 构成：用水平和垂直脉冲形成的消隐脉冲Pb对亮度信号Sy进行消隐。 通过将该消隐亮度信号S1保持在黑色峰值电平来提取该消隐亮度信号S1。 通过微分电路11和波形整形电路12对亮度信号Sy进行微分和整形，得到脉冲P12。亮度信号Sy用脉冲P12进行消隐。 此外，黑电平补偿电路设置有消隐电路1，电流镜电路2,3，黑峰保持电路4，比较电路5和钳位电路6; 并且获得其中基本黑电平改变为基座电平的亮度信号S6。

    TEXT DATA RECEIVER
    6.
    发明专利
    TEXT DATA RECEIVER 失效

    公开(公告)号：JPH0563737A

    公开(公告)日：1993-03-12

    申请号：JP24282091

    申请日：1991-08-28

    Applicant: SONY CORP

    Inventor： IIDA YOICHI ,  TOYODA NAOKUNI

    IPC: H04L13/18 ,  H04N7/025 ,  H04N7/03 ,  H04N7/035 ,  H04N7/08

    Abstract: PURPOSE:To allow a main body side to select pages without provision of a new button by using a button for function selection for selecting a page. CONSTITUTION:Buttons 2, 3 for brightness adjustment are related to hundreds digit of text pages, buttons 4, 5 for program (channel) increasing/decreasing are related to tens digit of text pages, and buttons 6, 7 for sound volume increasing/decreasing are related to units digit of text pages. Thus, a required text data page number is selected by the respective function buttons.

    COLOR MONITOR DEVICE
    9.
    发明专利
    COLOR MONITOR DEVICE 失效

    公开(公告)号：JPH0432385A

    公开(公告)日：1992-02-04

    申请号：JP13708190

    申请日：1990-05-29

    Applicant: SONY CORP

    Inventor： TOKUHARA MASAHARU ,  TOYODA NAOKUNI ,  KITA HIROYUKI

    IPC: H04N9/00 ,  H04N7/025 ,  H04N7/03 ,  H04N7/035 ,  H04N7/08

    Abstract: PURPOSE:To eliminate a delay time difference in a comb-line filter by inputting a signal not Y/C separation at a Y/C separator circuit, that is, a composite video signal in a vertical blanking period to a text decoder. CONSTITUTION:Line subtraction processing by an arithmetic circuit 14 in a Y/C separator circuit 11 is not implemented during a vertical blanking period. Thus, a test data superimposed during the vertical blanking period of a composite video signal is not changed but outputted from the Y/C separation circuit 11. Thus, when a text decoder 17 extracts a text data from an output of the arithmetic circuit 14, proper decoding is attained. Since the text data passes through the Y/C separation circuit 11, the delay time difference between Y and C signals due to the characteristic of a comb-line filter is not generated naturally. Thus, the time difference due to the comb-line filter is very easily eliminated in a video signal and a text signal.

    TELEVISION RECEIVER
    10.
    发明专利
    TELEVISION RECEIVER 失效

    公开(公告)号：JPS62171284A

    公开(公告)日：1987-07-28

    申请号：JP1240986

    申请日：1986-01-23

    Applicant: SONY CORP

    Inventor： USUI HIROBUMI ,  TOYODA NAOKUNI

    IPC: H04N5/44

    Abstract: PURPOSE:To attain excellent correction without deteriorating a characteristic by changing the characteristic of a frequency characteristic correction circuit synchronously with the switching of a switching circuit switching plural video signals. CONSTITUTION:A frequency characteristic correction circuit 22 has a correction characteristic suitable for the group delay characteristic of a video signal SV1 from a video detection circuit 3 and a correction circuit 23 has a correction characteristic suitable for the group delay characteristic of the video signal SV2 from a terminal 5 similarly. Switching circuits 4, 21 and 24 are switched to the position A or B by interlocking with a control signal SC. When the switching circuit 4 is connected to the position A and the video signal SV1 from the video detection circuit 3 is given to a separation circuit 8, since the circuit 22 is connected between the separation circuit 8 and a processor 9, the group delay characteristic of the signal SV1 is corrected excellently. When the circuit 4 is connected to the position B, the correction circuit 23 corrects the group delay characteristic of the video signal SV2 excellently.

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