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公开(公告)号：EP0671847A1
公开(公告)日：1995-09-13
申请号：EP95102654.1
申请日：1995-02-24
CPC分类号： H04N3/27 , H04N3/2335
摘要： A scanning waveform generator for operation at a first or a second scanning frequency comprises a source (IC100) of a parabolic shaped signal having a frequency selectable between the first or second scanning frequency. A means (456) for generating a switching signal indicative of a video signal operating at one of a first or a second scanning frequency. A means (CS50, CS60 C4, C5, 460) for generating a sawtooth shaped waveform is coupled to the switching signal for switching between the first or the second scanning frequency. A means (U1, R6) for generating an S correction signal is coupled to the source (IC100) and to the sawtooth generating means (CS50, CS60 C4, C5, 460). A means (R1, C1, Q1) for filtering the parabolic signal is controllably coupled to the switching signal generator(456), and is also coupled to the S correction signal generating means (U1, R6). The filtered parabolic signal has an substantially the same shape during the first or second scanning frequency.
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公开(公告)号：EP0631438A3
公开(公告)日：1995-09-06
申请号：EP94304338.0
申请日：1994-06-15
申请人： SONY CORPORATION
发明人： Baba, Sumio , Ogura, Toshiyuki
CPC分类号： H04N7/0122 , H04N3/223 , H04N3/233 , H04N3/27
摘要： In order to display a video signal having an aspect ratio of 4 to 3 on a video display screen having a 16 to 9 aspect ratio a nonlinear vertical deflection signal is used to compress the video image along the top and bottom edges of the 16 to 9 aspect ratio screen. The video image is compressed only along the top and bottom edges of the screen because it has been found that motion of the point of view of the viewer relative to the displayed image is generally horizontal but is infrequently vertical. One approach to providing the non-linear vertical deflection waveform is to detect whether the input video signal for display on a 16 to 9 aspect ratio screen is a 4 to 3 aspect ratio signal and, if so, to read out special, non-linear data from a memory. This special waveform data is used to generate the non-linear vertical deflection waveform. If the input video signal is detected to be a 16 to 9 aspect ratio signal, standard data is read out from the memory to be used to generate the appropriate linear vertical deflection waveform.
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93.发明公开Automatic adapting image sensing and display system 失效Bildaufnahme und -anzeigesystem mit automatischer Anpassung。
公开(公告)号：EP0658047A1
公开(公告)日：1995-06-14
申请号：EP94119604.0
申请日：1994-12-12
申请人： NEC CORPORATION
发明人： Hokari, Yasuaki , Kohno, Akiyoshi
摘要： An image pick up and displaying system comprises an image pick up device (1) being provided with a signal superimposing unit (43) for superimposing a recognition signal at a predetermined portion on any of synchronous pulse signals, except for any image signals, the recognition signal indicating any kind of the image pick up device; and a display device (5) being connected to the image pick up device and further being provided with a signal detecting and sweeping control section (82,83) for detecting any recognition signal to control a sweeping speed and a sweeping time of sweeping on a screen of the display device at least in any one of vertical and horizontal directions thereby the image is displayed on an entire of the screen without any distortion thereof.
摘要翻译： 图像拾取和显示系统包括图像拾取装置（1），其具有信号叠加单元（43），用于在除了任何图像信号之外的任何同步脉冲信号上的预定部分处叠加识别信号，识别 指示任何种类的图像拾取装置的信号; 以及显示装置（5），连接到图像拾取装置，并且还设置有信号检测和扫描控制部分（82,83），用于检测任何识别信号以控制扫描速度和扫描扫描时间 显示装置的屏幕至少在垂直和水平方向中的任何一个方向上，从而在整个屏幕上显示图像而没有其任何变形。
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公开(公告)号：EP0579190A3
公开(公告)日：1994-09-28
申请号：EP93111244.5
申请日：1993-07-13
申请人： EDICO S.r.l.
发明人： Parenti, Umberto
CPC分类号： H04N3/27
摘要： A television is described, comprising an image display device, of a shape being substantially rectangular, having a ratio between the equal sides substantially of 16/9; the main characteristic of the invention consists in that it provides a commutation deflection device for enabling the display on said screen having a ratio substantially equal to 16/9 also of images of a ratio substantially equal to 4/3.
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公开(公告)号：EP0532635A4
公开(公告)日：1993-12-22
申请号：EP91911305
申请日：1991-05-30
发明人： ERSOZ, NATHANIEL, HALUK , SAEGER, TIMOTHY, WILLIAM , DOTY, JAMES, HARRISON, II , KRANAWETTER, GREG, ALAN
IPC分类号： H04N5/46 , G06F3/00 , G06T3/40 , G09G5/00 , G09G5/14 , G09G5/377 , G09G5/391 , H04N3/223 , H04N3/227 , H04N3/27 , H04N5/073 , H04N5/14 , H04N5/262 , H04N5/265 , H04N5/44 , H04N5/45 , H04N7/00 , H04N7/01 , H04N7/015 , H04N7/26 , H04N9/64 , H04N11/06 , H04N11/20 , H04N11/24
CPC分类号： H04N9/641 , G06T3/0012 , G06T3/4007 , H04N3/223 , H04N3/227 , H04N3/27 , H04N5/2624 , H04N5/45 , H04N7/007 , H04N7/01 , H04N7/0105 , H04N7/0122 , H04N7/015 , H04N9/64 , H04N19/90
摘要： Video luminance data from a video signal is selectably compressed and expanded in a first signal path including a first line memory (356). A second line memory (358) in a parallel signal path processes video chrominance data from the video signal. A control circuit (320) generates respective timing signals for writing data into the line memories and for reading data from the line memories. A timing delay circuit (337) for the control means, has video compression and expansion modes of operation. During the compression mode, reading of the second line memory is delayed relative to writing of the second line memory. During said expansion mode, writing of the first line memory is delayed relative to writing of the second line memory or reading of the second line memory is delayed relative to writing of the second line memory. The duration of the timing delays can be selected from a range of values. The line memories are first in first out (FIFO) devices having independently enabled write and read ports.
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公开(公告)号：EP0444781A3
公开(公告)日：1991-11-06
申请号：EP91300708.4
申请日：1991-01-30
发明人： Shimaoka, Katsuaki
CPC分类号： H04N3/27
摘要： In a television receiver, a change in a horizontal frequency of an input television signal between a high frequency and a low frequency is detected. A horizontal oscillation frequency, a horizontal deflection drive pulse width, and a horizontal blanking period are changed in a first predetermined sequence in response to a change in the horizontal frequency of the input television signal from the high frequency to the low frequency. The horizontal oscillation frequency, the horizontal deflection drive pulse width, and the horizontal blanking period are changed in a second predetermined sequence in response to a change in the horizontal frequency of the input television signal from the low frequency to the high frequency. The first and second predetermined sequences are opposite to each other.
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公开(公告)号：EP0398598A3
公开(公告)日：1991-11-06
申请号：EP90305102.7
申请日：1990-05-11
申请人： SONY CORPORATION
CPC分类号： H04N3/27
摘要： A horizontal deflection circuit for a multiple-scanning type television receiver that receives a video signal that can have a number of horizontal frequencies, comprises a detecting circuit (22 to 24) for detecting a deflection width of the input video signal, a comparator (20) for comparing a detected deflection width with a signal proportional to the picture size of the input video signal in the horizontal direction, an adder (15) for adding an output of the comparator (20) and the picture size signal, a voltage signal generating circuit (12) for generating a voltage signal proportional to the horizontal frequency of the input video signal, and a multiplying circuit (13) for multiplying an output signal of the adder (15) and an output signal of the voltage signal generating circuit (12), wherein a horizontal output circuit (17) is controlled on the basis of the output signal of the multiplying circuit (13). A horizontal deflection width detecting circuit (18) is also provided, in which a horizontal deflection width of the input video signal is detected by peak-rectifying a horizontal deflection pulse.
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公开(公告)号：EP0178900B1
公开(公告)日：1989-11-02
申请号：EP85307409.4
申请日：1985-10-15
申请人： SONY CORPORATION
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99.发明公开Vertical deflection circuit for cathode ray tube display device 失效VertikalablenkschaltungfürKathodenstrahlröhren-Darstellungsvorrichtung。
公开(公告)号：EP0310419A2
公开(公告)日：1989-04-05
申请号：EP88309106.8
申请日：1988-09-30
IPC分类号： H04N3/27
摘要： A vertical deflection circuit for a cathode ray tube display device. The vertical deflection circuit includes a generator (10a) for generating a sawtooth wave signal (S), the sawtooth wave signal generating circuit (10a) having a capacitor (20) which is alternately charged and discharged in synchronism with first vertical synchronization pulses (P1), a frequency divider (56) for dividing the frequency of second vertical synchronization pulses (P2) which are generated at every time just before the occurrences of the first vertical synchronization pulses (P1) to a half, a deflection drive circuit (44) for regulating the vertical amplitude of the sawtooth wave signal (S), the deflection drive circuit (44) having a comparator (46) for comparing the minimum value of the sawtooth wave signal (S) with a prescribed reference voltage (Vr) under the control of the divided vertical synchronization pulses (P3) and a current source (52) responsive to the comparator (46) for regulating the charge and the discharge current of the capacitor (20).
摘要翻译： 一种用于阴极射线管显示装置的垂直偏转电路。 垂直偏转电路包括用于产生锯齿波信号（S）的发生器（10a），锯齿波信号产生电路（10a）具有电容器（20），与第一垂直同步脉冲（P1 ），用于将在第一垂直同步脉冲（P1）出现之前的每一次产生的第二垂直同步脉冲（P2）的频率分频为一半的分频器（56），偏转驱动电路（44） 为了调节锯齿波信号（S）的垂直振幅，偏转驱动电路（44）具有用于将锯齿波信号（S）的最小值与规定的参考电压（Vr）进行比较的比较器（46） 响应于用于调节电容器（20）的电荷和放电电流的比较器（46），对分割的垂直同步脉冲（P3）和电流源（52）进行控制。
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