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公开(公告)号：EP1324591A4
公开(公告)日：2008-12-10
申请号：EP01961175
申请日：2001-08-29
申请人： PANASONIC CORP
发明人： OOGAMI TOMONARI , NAGASUE TAKAHUMI
CPC分类号： H04N3/185 , H04N3/18 , Y10T307/766
摘要： A resonance pulse voltage of positive polarity is impressed on a horizontal deflection coil included in a first resonance circuit by the first resonance circuit and a third resonance circuit. A resonance pulse voltage of negative polarity opposite to the resonance pulse voltage of the first and third resonance circuits is impressed on not a transistor, but only the horizontal deflection coil of the first resonance circuit by the second resonance circuit.
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公开(公告)号：EP1496686A4
公开(公告)日：2007-03-28
申请号：EP03746484
申请日：2003-04-14
发明人： YAMATE KAZUNORI
CPC分类号： H04N3/32
摘要： A video display apparatus includes a brightness signal processing circuit, a color difference signal processing circuit, an RGB matrix circuit, a CRT drive circuit, a CRT, a plurality of VM coils, a plurality of scan rate modulating circuit blocks, a horizontal deflection circuit, a vertical deflection circuit, a horizontal deflection coil, and a vertical deflection coil. Electron beams generated and directed into the CRT by the CRT drive circuit are caused, by horizontal and vertical deflection coils, to perform horizontal and vertical scans. The plurality of scan rate modulating circuit blocks provide rate modulation currents to the plurality of VM coils, whereby the plurality of VM coils generate rate modulation fields to provide local rate modulations to the horizontally scanning electron beams.
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23.发明公开DEFLECTION SUPPLY VOLTAGE FEEDBACK CONTROL IN CONJUNCTION WITH FREQUENCY CHANGE 审中-公开ABLENKVERSORGUNGSSPANNUNGSRÜCKKPPLUNGSREGELUNGIN VERBINDUNG MIT FREQUENZWECHSEL
公开(公告)号：EP1497909A4
公开(公告)日：2007-03-14
申请号：EP03718401
申请日：2003-04-16
申请人： THOMSON LICENSING
发明人： CHOKSI SNEHAL , GRIES ROBERT JOSEPH , WILLIAMS KEVIN MICHAEL , JACKSON DAVID ROSS , WATSON ROBERT GOAH III
摘要： A video display (10) includes a scanner (100) operable at a first frequency (H1) and a higher second frequency (H2). A switchmode power supply (SMPS) (32) drives a transformer (T1) with three secondaries (T1S1b, T1S1a and T1S2). First and second rectifiers & filters ((CR107, CR108) and (F101, F102)) are associated with the first and second secondaries. A rectifier is coupled to the third secondary (T1S1b) and by way of a switch (K2) to the first filter (F101). Feedback from the first filter (F101) controls the SMPS (32). In a first operating mode, the scanner (100) is operated at the first frequency, the switch is open, the scanner supply (SCAN +) is a first voltage from the first filter (F101), and ancillary equipment is supplied with a third voltage by the second filter (F102). In a second operating mode, the scanner (100) is operated at the second frequency, the switch (K2) is closed, the scanner supply (SCANB +) is a second voltage, higher than the first, from the first filter (F101), and ancillary equipment is supplied with the same third voltage.
摘要翻译： 视频显示器（10）包括以第一频率（H1）和较高的第二频率（H2）操作的扫描仪（100）。 开关模式电源（SMPS）（32）以三个次级（T1S1b，T1S1a和T1S2）驱动变压器（T1）。 第一和第二整流器和滤波器（（CR107，CR108）和（F101，F102））与第一和第二副滤波器相关联。 整流器通过开关（K2）连接到第三次级（T1S1b）并连接到第一滤波器（F101）。 来自第一滤波器（F101）的反馈控制SMPS（32）。 在第一操作模式中，扫描仪（100）以第一频率操作，开关打开，扫描仪电源（SCAN +）是来自第一滤波器（F101）的第一电压，并且辅助设备被提供有第三频率 由第二滤波器（F102）提供电压。 在第二操作模式中，扫描器（100）以第二频率操作，开关（K2）闭合，扫描器电源（SCANB +）是来自第一滤波器（F101）的高于第一电压的第二电压， ，并且辅助设备被提供相同的第三电压。
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公开(公告)号：EP1497815A4
公开(公告)日：2006-05-17
申请号：EP03741765
申请日：2003-04-21
申请人： THOMSON LICENSING
发明人： GEORGE JOHN BARRETT
CPC分类号： H04N3/26
摘要： A dynamic focus amplifier (17) for generating a dynamic focus voltage for a focus electrode for a cathode ray tube (12) at a capacitive load (C602, C wire, CTl) includes a source of a periodic signal at a horizontal deflection frequency. A pulldown transistor (Q1) is responsive to the periodic signal and coupled to the capacitive load (C602, C wire, CTl) for producing, in accordance with the periodic signal, a first portion of the dynamic focus voltage that decreases, during a first portion of a period of the periodic signal. A storage capacitor (C501) is coupled to the capacitive load (C602, C wire, CTl) for replenishing a charge stored in the storage capacitor (C501) from a charge stored in the capacitive load to develop a control voltage in the storage capacitor (C501). A pull-up transistor is responsive to the control voltage and coupled to a source of a high voltage and to the capacitive load (C602, C wire, CTl) for producing from the high voltage a current that is coupled to the capacitive load. The current develops a second portion of the dynamic focus voltage that increases, during a second portion of the period of the periodic signal, and stores the charge in the capacitive load (C602, C wire, CTl).
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公开(公告)号：EP1497814A4
公开(公告)日：2006-04-19
申请号：EP03721704
申请日：2003-04-17
申请人： THOMSON LICENSING
发明人： GEORGE JOHN BARRETT
CPC分类号： H04N3/26
摘要： A video imaging apparatus (10) comprises first and second cathode-ray tubes (12), each having an ultor electrode (12u) and a focus electrode (12f). A power supply generates an ultor voltage, which may have a fluctuating voltage component produced by beam current variations, and which is coupled to first and second ultor electrodes (12u) of the first and second cathode-ray tubes (12). A high voltage amplifier (22) generates a dynamic focus voltage component at a frequency related to a deflection frequency. A combining network (34) combines the fluctuating voltage component and the dynamic focus voltage component to develop a combined, dynamic focus voltage. The combined, dynamic focus voltage is coupled to each of the first and second focus electrodes (12f) for developing from the combined, dynamic focus voltage each of a first dynamic focus voltage at the first focus electrode (12f) and a second dynamic focus voltage at the second focus electrode (12f).
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26.发明公开METHOD AND APPARATUS FOR PROVIDING A DYNAMIC ROTATIONAL ALIGNMENT OF A CATHODE RAY TUBE RASTER 审中-公开方法和设备提供了一种阴极射线费GRID动态旋转方向
公开(公告)号：EP1535271A4
公开(公告)日：2006-03-29
申请号：EP03741997
申请日：2003-06-12
发明人： WEBB JAMES R
CPC分类号： H04N3/22
摘要： A method and apparatus used to step and correct the position of raster lines in a sinusoidal or zig-zag deflection system. By combining the magnetic flux generated with a rotation "twister" coil and a vertical deflection coil, scan lines can be uniformly spaced and separated nearly to their ends. Accordingly, the magnetic flux generated with the twister coil is adjusted going in the left to right direction then reversed in polarity and readjusted while returning from right to left. It is this controlled twister flux that combines with the linear vertical deflection flux to straighten and then step each scan line to produce an aligned raster.
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公开(公告)号：EP0821336A3
公开(公告)日：1998-03-11
申请号：EP97117238.2
申请日：1993-02-24
申请人： THOMSON Multimedia
发明人： Koblitz, Karl Rudolf
摘要： In a vertical sawtooth generator (10,14) of a vertical deflection circuit, a first comparator (19) generates an output signal when a retrace portion (RETRACE) of a sawtooth signal (VRAMP) is at a first magnitude (VLOW) to initiate a vertical trace portion of the sawtooth signal. An amplifier (23) responsive to the sawtooth signal generates a feedback current (IOUT) at a time (H. LINE #210, Fig. 2c) that occurs more than one-half of the length of vertical trace portion after vertical trace is initiated. The feedback current is coupled to a capacitor (22) to develop a capacitor voltage (VAGC). The capacitor voltage is applied via a voltage-to-current converter (21) to an integrating capacitor (14) to develop in the integrating capacitor the trace portion of the sawtooth signal.
摘要翻译： 在垂直偏转电路的垂直锯齿波发生器（10,14）中，当锯齿波信号（VRAMP）的回扫部分（RETAMP）处于第一大小（VLOW）时，第一比较器（19）产生输出信号以启动 锯齿信号的垂直迹线部分。 响应于锯齿波信号的放大器（23）在垂直扫描开始之后在垂直扫描线部分的长度的一半以上产生反馈电流（IOUT）（H线＃210，图2c） 。 反馈电流耦合到电容器（22）以形成电容器电压（VAGC）。 电容器电压通过电压 - 电流转换器（21）施加到积分电容器（14），以在积分电容器中产生锯齿波信号的迹线部分。
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公开(公告)号：EP0557971B1
公开(公告)日：1997-05-28
申请号：EP93102878.1
申请日：1993-02-24
发明人： Yamazaki, Masao , Kitamura, Tsutomu
IPC分类号： G09G1/04
CPC分类号： G09G1/04 , H04N3/2335
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公开(公告)号：EP0313646B1
公开(公告)日：1992-12-16
申请号：EP88905041.5
申请日：1988-03-18
IPC分类号： G09G1/04
摘要： The apparatus of the invention enables a CRT to be readily adapted to display either one type of language from left to right or a different type of language from right to left. The apparatus includes a first relay (30) for connecting a power supply (25) to a CRT driver (32), and a second relay (42) connecting the CRT to the CRT driver (32), actuation of the second relay (42) serving to reverse the signals applied to first and second leads connected to horizontal deflection coil means of the CRT. Logic means (36) control the operation of the first and second relays (30, 42) whereby, in response to the generation of a control signal indicative of raster scan reversal, the first relay (30) is actuated to disconnect the power supply (25) from the CRT driver (32) prior to actuation of the second relay (42), after which the first relay (30) is reset so as to reconnect the power supply (25) to the CRT driver (32).
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公开(公告)号：EP0235947B1
公开(公告)日：1992-12-16
申请号：EP87300896.5
申请日：1987-02-02
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