公开(公告)号：US20100103499A1

公开(公告)日：2010-04-29

申请号：US12450687

申请日：2007-04-12

申请人： John Barrett George

发明人： John Barrett George

IPC分类号： G02B26/00

CPC分类号： G02B26/0841 ,  H04N9/3111 ,  H04N9/3164

摘要： A controllable reflecting device having an array of bi-axial mirrors that are capable of pivoting in at least four directions is described. Each micro-mirror of the micro-mirror array is supported through a torsion pivot by a yoke attached by a second coplanar orthogonal torsion pivot to the mirror array support. The mirror and yoke are electrically conductive to a common node on the mirror array support shared by all the mirror/yoke assemblies. Under each mirror/yoke assembly the mirror array support has four plate areas electrically isolated from each other and the mirror/yoke assembly. In response to electrical signals from driver switches integrated in the mirror array support, these plate areas, driven in pairs, selectively provide an electric field with respect to the common node. This electric field attracts the mirror and yoke to facilitate movement of the mirror/yoke assembly to a desired reflecting state.

摘要翻译： 描述了具有能够在至少四个方向上枢转的双轴反射镜阵列的可控反射装置。 微镜阵列的每个微反射镜通过由第二共面正交扭转枢轴连接到镜阵列支撑件的轭的扭转枢轴支撑。 反射镜和磁轭与所有镜子/磁轭组件共享的镜阵列支架上的公共节点导电。 在每个镜/轭组件下，镜阵列支撑件具有彼此电隔离的四个板区域和镜/轭组件。 响应于集成在反射镜阵列支撑中的驱动器开关的电信号，成对驱动的这些板区域相对于公共节点选择性地提供电场。 该电场吸引反射镜和轭，以便于将镜子/轭组件移动到期望的反射状态。

公开(公告)号：US06982766B1

公开(公告)日：2006-01-03

申请号：US09485940

申请日：1998-08-28

申请人： John Barrett George ,  Frank Albert Glad

发明人： John Barrett George ,  Frank Albert Glad

IPC分类号： H04N3/22 ,  H04N3/26

CPC分类号： H04N9/31 ,  H04N3/2335 ,  H04N9/28

摘要： A projection display uses a matrix of digital correction factors defining deflection correction factors between which linear interpolation is used for intermediate points on the display. A circuit for generating a correction signal to correct image distortion on a display screen, comprises a memory storing displacement values corresponding to spaced points on the screen in a grid of rows and columns. The displacement values of the grid generally define correction curves for correcting the image distortion without introducing significant banded regions on the display screen. An interpolator is coupled to the memory for interpolating intermediate values between adjacent ones of the stored displacement values, and a digital to analog converter is coupled to the interpolator for providing the correction signal.

摘要翻译： 投影显示器使用定义偏转校正因子的数字校正因子矩阵，在显示器上的中间点使用线性插值。 用于产生校正信号以校正显示屏幕上的图像失真的电路包括存储与行和列的网格中的屏幕上的间隔点对应的位移值的存储器。 网格的位移值通常限定用于校正图像失真的校正曲线，而不在显示屏幕上引入显着的带状区域。 内插器耦合到存储器，用于在相邻的存储的位移值之间内插中间值，并且数模转换器耦合到内插器以提供校正信号。

公开(公告)号：US06774585B2

公开(公告)日：2004-08-10

申请号：US10168603

申请日：2002-11-04

申请人： Günter Gleim ,  Friedrich Heizmann ,  John Barrett George ,  Albert Runtze

发明人： Günter Gleim ,  Friedrich Heizmann ,  John Barrett George ,  Albert Runtze

IPC分类号： G09G104

CPC分类号： H04N3/27 ,  H04N3/26

摘要： A method for generating display correction waveforms for a CRT display comprises the steps of selecting one of a plurality of trace portions for forming part of a correction waveform, the trace portions having different average values. Completing each of the correction waveform by combining each selected trace portion with a respective retrace portion such that all completed correction waveforms have a predetermined average value. The correction waveforms may have vertical and/or horizontal rates.

摘要翻译： 一种用于产生CRT显示器的显示校正波形的方法包括以下步骤：选择多个迹线部分之一以形成校正波形的一部分，迹线部分具有不同的平均值。 通过将每个所选择的跟踪部分与相应的回扫部分组合来完成每个校正波形，使得所有完成的校正波形具有预定的平均值。 校正波形可以具有垂直和/或水平速率。

公开(公告)号：US6018804A

公开(公告)日：2000-01-25

申请号：US621366

申请日：1996-03-25

申请人： John Barrett George

发明人： John Barrett George

IPC分类号： H04N5/44 ,  G09G1/00 ,  H04N5/63 ,  G06F1/32

CPC分类号： H04N5/63

摘要： A video display with data bus control has a standby and an operate condition. The video display comprises a microprocessor having a bi-directional data bus and is selectably operable in one of the operate and standby modes. A power supply is controllably coupled to the microprocessor for supplying power in one of the operate and the standby modes. An integrated circuit is coupled to the power supply and has bi-directional data bus control capability. A coupling device is responsive to the power supply and couples the bi-directional data bus to the integrated circuit in response to the operate mode and isolates the bi-directional data bus in response to the standby mode.

摘要翻译： 具有数据总线控制的视频显示器具有待机和操作条件。 视频显示器包括具有双向数据总线的微处理器，并且可选择地在操作和待机模式之一中操作。 电源可控地耦合到微处理器，用于在操作和待机模式之一中供电。 集成电路耦合到电源并具有双向数据总线控制能力。 耦合装置响应于电源并且响应于操作模式将双向数据总线耦合到集成电路，并且响应于待机模式隔离双向数据总线。

公开(公告)号：US5847777A

公开(公告)日：1998-12-08

申请号：US589178

申请日：1996-01-19

申请人： John Barrett George

发明人： John Barrett George

IPC分类号： H04N3/233 ,  H04N9/28 ,  G09G1/04

CPC分类号： H04N3/233 ,  H04N9/28

摘要： A convergence correction circuit, for a cathode ray tube projecting images having keystone, differential sinusoidal and differential right-edge curl distortions, comprises generators for horizontal-rate, generally sinusoidal, horizontal-rate sawtooth and horizontal-rate pulse waveforms. A summer combines the horizontal-rate waveforms into a horizontal-rate composite waveform. A multiplier and an amplifier generate as an output signal a product of the horizontal-rate composite waveform and a vertical-rate sawtooth waveform. A convergence correction coil is coupled for receiving the output signal and generating a dynamic magnetic field correcting the keystone, differential sinusoidal and differential right-edge curl distortions.

摘要翻译： 用于投影具有梯形失真，差分正弦曲线和差分右边缘卷曲失真的图像的阴极射线管的会聚校正电路包括用于水平速率，大致正弦，水平速率锯齿波和水平速率脉冲波形的发生器。 夏天将水平速率波形合并成水平速率复合波形。 乘法器和放大器作为输出信号产生水平速率复合波形和垂直速率锯齿波形的乘积。 会聚校正线圈被耦合用于接收输出信号并产生校正梯形失真，差分正弦曲线和差分右边缘卷曲失真的动态磁场。

公开(公告)号：US5798668A

公开(公告)日：1998-08-25

申请号：US563528

申请日：1995-11-28

申请人： John Barrett George

发明人： John Barrett George

IPC分类号： H04N3/18 ,  H03F1/02 ,  H03F3/30 ,  G05F1/10

CPC分类号： H03F1/0244 ,  H03F3/3077

摘要： A convergence correction voltage waveform is applied to a power amplifier circuit. An output stage of the power amplifier drives a deflection coil of a cathode ray tube with a convergence correction current, which is proportional to the convergence correction voltage waveform. A differential voltage potential across an output device of the output stage is compared against a predetermined reference voltage. As the differential voltage potential begins to drop below the predetermined reference voltage, a buck-topology voltage regulator, which is coupled to the output device, turns on. The differential voltage potential is thereby maintained at a level greater than the predetermined reference voltage.

摘要翻译： 会聚校正电压波形被施加到功率放大器电路。 功率放大器的输出级利用与会聚校正电压波形成比例的会聚校正电流驱动阴极射线管的偏转线圈。 将输出级的输出装置两端的差分电压电压与预定参考电压进行比较。 当差分电压电位开始下降到预定参考电压以下时，耦合到输出装置的降压拓扑电压调节器导通。 因此，差分电压电位保持在大于预定参考电压的电平。

公开(公告)号：US5777862A

公开(公告)日：1998-07-07

申请号：US749701

申请日：1996-11-15

申请人： Kevin Michael Williams ,  John Barrett George

发明人： Kevin Michael Williams ,  John Barrett George

IPC分类号： H02M3/28 ,  H02M1/00 ,  H02M1/32 ,  H02M3/335 ,  H02H7/122

CPC分类号： H02M1/32 ,  H02M3/33523

摘要： A voltage source, a transformer and a switching controller are coupled for switched mode generation of a regulated output supply voltage. A switching circuit responsive to an on/off signal turns the power supply on and off by establishing a conductive condition in a conductive path. A fault detector establishes a non conductive condition in a part of the conduction path responsive to an overload condition. A delay circuit establishes a conductive condition in an auxiliary conduction path for a period of time after the power supply is turned on. The auxiliary conduction path becomes non-conductive when the fault detector establishes a conductive condition in the part of the conduction path. The part of the conduction path remains conductive absent an overload condition. A latch arrangement including the delay circuit maintains the non conductive condition in the auxiliary conduction path until the power supply is turned off.

摘要翻译： 电压源，变压器和开关控制器被耦合用于调节输出电源电压的开关模式产生。 响应于开/关信号的开关电路通过在导电路径中建立导电条件来打开和关闭电源。 故障检测器响应于过载状况，在传导路径的一部分中建立非导通状态。 延迟电路在电源接通之后的一段时间内在辅助导电路径中建立导电状态。 当故障检测器在导电路径的一部分中建立导电状态时，辅助导电路径变得不导通。 传导路径的一部分在没有过载条件的情况下保持导通。 包括延迟电路的锁存装置在辅助导电路径中保持非导通状态，直到电源关闭。

公开(公告)号：US5661376A

公开(公告)日：1997-08-26

申请号：US429963

申请日：1995-04-27

申请人： John Barrett George

发明人： John Barrett George

IPC分类号： H04N9/28 ,  G09G1/00 ,  H04N3/23 ,  H04N3/233 ,  H01J29/56

CPC分类号： H04N3/233

摘要： A circuit in accordance with an inventive arrangement comprises: a signal generator for a correction signal having a substantially parabolic shape at a scanning rate of the video display; a waveform clipper coupled to the signal generator for the correction signal, the waveform clipper having a current sink transistor coupled to the signal generator for the correction signal for clamping the correction signal, and a reference transistor coupled to a base of the current sink transistor for providing a reference voltage; and, a switch for disabling the reference transistor during excursions of the correction signal and enabling the reference transistor during clamping. The switch may comprise a switching transistor coupled to the reference transistor and to the correction signal, the switching transistor disabling the reference transistor during excursions of the correction signal and enabling the reference transistor during clamping.

摘要翻译： 根据本发明的装置的电路包括：用于校正信号的信号发生器，具有在视频显示器的扫描速率下的基本抛物线形状; 波形限幅器，其耦合到所述信号发生器用于所述校正信号，所述波形限幅器具有耦合到所述信号发生器的电流吸收晶体管，用于用于钳位所述校正信号的校正信号;以及参考晶体管，其耦合到所述电流宿晶体管的基极， 提供参考电压; 以及用于在校正信号偏移期间禁用参考晶体管并且在钳位期间使参考晶体管能够使能的开关。 开关可以包括耦合到参考晶体管和校正信号的开关晶体管，开关晶体管在校正信号的偏移期间禁用参考晶体管，并且在钳位期间使参考晶体管能够实现。

公开(公告)号：US5644196A

公开(公告)日：1997-07-01

申请号：US481539

申请日：1995-07-07

申请人： John Barrett George

发明人： John Barrett George

IPC分类号： H04N9/28 ,  G09G1/28 ,  H01J29/51

CPC分类号： H04N9/28

摘要： A differentiation network differentiates a retrace pulse signal to produce a narrower pulse during the first half of retrace that is coupled to an input of a convergence amplifier. The convergence amplifier is coupled to a convergence winding to produce a convergence current. The narrower pulse produces an overshoot at the amplifier input and, thereby, speeds up the response time to the convergence amplifier.

摘要翻译： PCT No.PCT / US93 / 11995 Sec。 371日期：1995年7月7日 102（e）1995年7月7日PCT PCT 1993年12月8日PCT公布。 公开号WO95 / 16273 日期1995年6月15日差分网络将回扫脉冲信号区分为在回扫的前半部分中产生较窄的脉冲，该脉冲耦合到会聚放大器的输入端。 会聚放大器耦合到收敛线圈以产生收敛电流。 较窄的脉冲在放大器输入端产生过冲，从而加快了对会聚放大器的响应时间。

公开(公告)号：US3961263A

公开(公告)日：1976-06-01

申请号：US476086

申请日：1974-06-03

申请人： John Barrett George

发明人： John Barrett George

IPC分类号： H03J5/02 ,  H03J7/06 ,  H03J7/28 ,  H04B1/16

CPC分类号： H03J7/06 ,  H03J5/0245 ,  H03J7/28

摘要： A bandstart detector system for a television receiver tuning system wherein a sample of oscillator signals utilized for conversion of radio frequencies into intermediate frequencies is coupled to a plurality of tuned circuits. Detecting means are coupled to each of the tuned circuits to produce control signals having an amplitude inversely related to the difference between the oscillator signal frequency and the resonant freqency of each of the tuned circuits. The amplitude of the control signal will vary as the oscillator signal frequency is swept in a regular manner through a predetermined band of frequencies corresponding to television channel frequency allocations. The control signals are coupled to a sensing circuit which produces one output signal when the control signal is below a predetermined level and a second output signal when the control signal is above a predetermined level. The output signals produced by the sensing circuit are utilized to initiate counting of pulses, each produced as a result of a frequency comparison of a plurality of harmonically related frequency samples with a regularly recurring variation of the oscillation frequency. The resultant pulses are allowed to be accumulated in a counter employed to identify the channel being received.

摘要翻译： 一种用于电视接收机调谐系统的频带启动检测器系统，其中用于将无线电频率转换成中频的振荡器信号的样本耦合到多个调谐电路。 检测装置耦合到每个调谐电路以产生具有与振荡器信号频率和每个调谐电路的谐振频率之间的差异成反比的幅度的控制信号。 控制信号的振幅将随着振荡器信号频率以对应于电视频道频率分配的预定频带的规则方式扫描而变化。 控制信号耦合到感测电路，当控制信号低于预定电平时，产生一个输出信号，当控制信号高于预定电平时，产生第二输出信号。 由感测电路产生的输出信号用于开始脉冲计数，每个脉冲作为多个谐波相关频率样本与振荡频率的规律性重复变化的频率比较的结果产生。 所得到的脉冲被允许累积在用于识别正在接收的信道的计数器中。