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1. 发明授权

US06678098B2 Multiple lens support 有权
标题翻译：多镜头支持
公开(公告)号：US06678098B2
公开(公告)日：2004-01-13
申请号：US10175018
申请日：2002-06-18
申请人： John G. Amery , Michael E. Stockton
发明人： John G. Amery , Michael E. Stockton
IPC分类号： G02B702
CPC分类号： G02B7/021 , G02B7/02
摘要： A support structure for a display system includes at least one pentagon-shaped lens, at least two hexagon-shaped lenses, and at least two hexagon-shaped supports. The at least two hexagon-shaped supports support the at least one pentagon-shaped lens and the at least two hexagon-shaped lenses. Each of the hexagon-shaped supports is securely attached to one of the hexagon-shaped lenses and one edge of the pentagon-shaped lens.
摘要翻译：用于显示系统的支撑结构包括至少一个五边形透镜，至少两个六边形透镜和至少两个六边形支撑件。至少两个六边形支撑件支撑至少一个五边形透镜和至少两个六边形透镜。六角形支撑件中的每一个牢固地附接到六边形透镜中的一个和五边形透镜的一个边缘。

2. 发明授权

US6152739A Visual display system for producing a continuous virtual image 有权
标题翻译：用于产生连续虚拟图像的视觉显示系统
公开(公告)号：US6152739A
公开(公告)日：2000-11-28
申请号：US197025
申请日：1998-11-20
申请人： John G. Amery , John A. VanHoogstrate , Michael E. Stockton
发明人： John G. Amery , John A. VanHoogstrate , Michael E. Stockton
IPC分类号： G09B9/34 , G09B9/08 , G09B19/16
CPC分类号： G09B9/32 , G06F3/1446 , G09B9/34
摘要： A visual display system for producing a continuous far-focused virtual image according to the present invention includes a number of adjacent video image generation and display modules. Each module includes an image generator that generates a video image representative of a portion of a composite display image displayed on a video display. The visual display system also includes a number of optical viewing lenses associated with each video image generation and display modules and positioned between the operator and the video display. The lenses restrict the operator's field of view such that the operator views only a portion of the active display area of the video displays. The lenses of adjacent modules are joined together along their edges to form an enclosure partially surrounding the operator so that the operator views the composite display image displayed on the video displays through the lenses and perceives the composite display image as a continuous far-focused virtual image.
摘要翻译：根据本发明的用于生产连续远焦点虚拟图像的视觉显示系统包括多个相邻的视频图像生成和显示模块。每个模块包括图像生成器，其生成表示在视频显示器上显示的复合显示图像的一部分的视频图像。视觉显示系统还包括与每个视频图像生成和显示模块相关联并且位于操作者和视频显示器之间的多个光学观察镜头。透镜限制操作者的视野，使得操作者仅观看视频显示器的活动显示区域的一部分。相邻模块的透镜沿其边缘连接在一起以形成部分围绕操作者的外壳，使得操作者通过透镜观看显示在视频显示器上的复合显示图像，并将复合显示图像感知为连续的远焦点虚像。

3. 再颁专利

USRE31326E Signal translating apparatus for composite signal subject to jitter 失效
标题翻译：用于复合信号的信号转换装置遭受抖动
公开(公告)号：USRE31326E
公开(公告)日：1983-07-26
申请号：US779009
申请日：1977-03-18
申请人： John G. Amery , Robert W. Jorgenson
发明人： John G. Amery , Robert W. Jorgenson
IPC分类号： H04N9/85
CPC分类号： H04N9/85
摘要： Circuits are disclosed for processing color encoded video signals, encoded per a format wherein a chrominance signal in the form of a modulated subcarrier is buried in spectrum "troughs" in the midband of a wider band luminance signal, an illustrative use of the encoding format being in video disc recording. The processing circuits serve, in use with composite signals developed during video disc playback, to convert an input composite signal of buried subcarrier format to an output composite signal of NTSC format. Comb filtering is employed to separate buried subcarrier chrominance signal from midband luminance signal components. A heterodyning step preceding comb filtering is performed in a manner substantially precluding "jitter" of played back signals from disturbing accuracy of comb filter separating action, enabling use of a single 1H delay line form for the comb filter and enabling use of a relatively inexpensive, narrowband structure for the single delay line. The comb filter output provides a chrominance signal in a band suitable for output composite signal use. The output chrominance signal is also used in a subtractive process to effect comb filtering of the luminance signal to remove therefrom midband chrominance signals.

4. 发明授权

US4359756A Chrominance signal limiter 失效
标题翻译：色度信号限幅器
公开(公告)号：US4359756A
公开(公告)日：1982-11-16
申请号：US278662
申请日：1981-06-29
申请人： Dennis M. Schneider , John G. Amery
发明人： Dennis M. Schneider , John G. Amery
IPC分类号： H04N9/77 , H04N9/793 , H04N9/535 , H04N9/493
CPC分类号： H04N9/77 , H04N9/793
摘要： A filter separates a composite video input signal into luminance and chrominance signal components. DC signals are combined with the luminance signal to produce four control signals, first and fourth ones of which have an AC component inversely proportional to the luminance signal, second and third ones of which having an AC component directly porportional to the luminance signal, each having a respective DC component. The DC components of the first and third control signals are regulated in proportion to a first reference voltage, V1, and the DC components of the second and fourth ones of the control signals are regulated in proportion to a second reference voltage V2. Cascade connected complementary non-additive mixers limit excursions in a first sense of the chrominance signal to the lesser in that sense of the first and second control signals and limits excursions in a second sense of the chrominance signal to the lesser in that sense of the third and fourth control signals to thereby provide a limited chrominance output signal. The luminance and chrominance signals are combined to provide a composite video output signal limited to a range defined by the reference voltages V1 and V2 and in which the chrominance component of the output signal is limited symmetrically with respect to the luminance signal level, thereby reducing even order harmonic distortion of the chrominance signal under limiting conditions.
摘要翻译：滤波器将复合视频输入信号分离成亮度和色度信号分量。 DC信号与亮度信号组合以产生四个控制信号，第一和第四控制信号具有与亮度信号成反比的AC分量，其中第二和第三控制信号具有直接与亮度信号成比例的AC分量，每个具有相应的直流分量。第一和第三控制信号的DC分量与第一参考电压V1成比例地调节，并且第二和第四控制信号的DC分量与第二参考电压V2成比例地调节。级联连接的互补非加性混频器将色度信号的第一感测中的偏移限制为在第一和第二控制信号的意义上较小的偏移，并将色度信号的第二感测中的偏移限制在第三和第四控制信号，从而提供有限的色度输出信号。将亮度和色度信号组合以提供限于由参考电压V1和V2限定的范围的复合视频输出信号，并且其中输出信号的色度分量相对于亮度信号电平对称地被限制，从而甚至减少在限制条件下色度信号的阶次谐波失真。

5. 发明授权

US4110784A Noise reduction apparatus 失效
标题翻译：降噪装置
公开(公告)号：US4110784A
公开(公告)日：1978-08-29
申请号：US718804
申请日：1976-08-30
申请人： John G. Amery , Thomas W. Bursus
发明人： John G. Amery , Thomas W. Bursus
IPC分类号： H04N5/93 , G11B3/00 , H04B1/12 , H04N5/21 , H04N5/911 , H04N5/14 , H04B15/00 , H04N5/78 , H04N9/535
CPC分类号： H04B1/12 , H04N5/21 , H04N5/911
摘要： Improvement of the signal-to-noise ratio for a wideband video signal is effected by subtraction from the wideband video signal of a signal which follows low-amplitude excursions of the video signal's high frequency component. The latter signal is formed by a circuit arrangement which includes a high pass filter, of a C-R differentiator form, coupled to the input of an amplifier. A negative feedback path, coupled between the amplifier output and the junction of capacitive and resistive elements of the differentiator includes threshold devices which permit activation of the negative feedback path only during input signal excursions which exceed selected close-to-axis limits. The threshold device disposition relative to the high pass filter elements is such that negative feedback path activation also serves to introduce an appreciable reduction in the effective time constant of the differentiator, whereby a rapid return from a large input signal excursion beyond one of the selected limits may be followed at the amplifier input. In an illustrative use, the noise reduction circuitry is advantageously employed to process a luminance signal component separated by comb filtering from a composite signal recovered during playback of a video disc, with the subtraction step being effected in apparatus also serving to recombine separated luminance and chrominance components for formation of the disc player's output composite signal.
摘要翻译：通过从视频信号的高频分量的低振幅偏移的信号的宽带视频信号中减去来实现宽带视频信号的信噪比的改善。后一信号由包括耦合到放大器的输入的C-R微分器形式的高通滤波器的电路装置形成。耦合在放大器输出和微分器的电容和电阻元件的结之间的负反馈路径包括仅在超过选定的近轴限制的输入信号偏移期间激活负反馈路径的阈值器件。相对于高通滤波器元件的阈值器件配置使得负反馈路径激活也用于引入微分器的有效时间常数的明显降低，由此从大输入信号的快速返回偏移超过所选择的限制之一可以在放大器输入端跟随。在说明性使用中，有利地采用降噪电路来处理由视频盘回放期间恢复的复合信号通过梳状滤波分离的亮度信号分量，其中减法步骤还用于重新组合分离的亮度和色度用于形成光盘播放机的输出复合信号的组件。

6. 发明授权

US4385326A Video disc systems with plural preemphasis/deemphasis networks 失效
标题翻译：具有多个预加重/去加重网络的视频盘系统
公开(公告)号：US4385326A
公开(公告)日：1983-05-24
申请号：US206945
申请日：1980-11-14
申请人： John G. Amery , James H. Wharton
发明人： John G. Amery , James H. Wharton
IPC分类号： H04N5/93 , G11B20/06 , H03H7/01 , H04N5/92 , H04N5/922 , H04N5/923 , H04N9/79 , H04N9/85 , H04N9/87 , H04N9/491 , H04N5/14
CPC分类号： H03H7/0115 , H04N5/923 , H04N9/79 , H04N9/85 , H04N9/87
摘要： In video recording apparatus a luminance signal is doubly preemphasized by a cascade connection of two networks prior to clipping and application to a frequency modulator. One network has a non-linear phase characteristic and an amplitude response which increases by a predetermined amount over a lower portion of the luminance band and is substantially constant otherwise. The other network has a substantially linear phase response, and a rising amplitude response within the upper portion of the luminance band. The relative amplitude responses of the networks are in a predetermined relationship such that the combination exhibits a frequency dependent variation dominated by the one network over the lower portion of the luminance band and dominated by the other network over the upper portion of the luminance band whereby the luminance signal receives an increase in preemphasis over both portions of its bandwidth and clipping distortion under transient signal conditions is reduced. In video reproducer apparatus, a combination of deemphasis networks imparts a complementary deemphasis characteristic to the preemphasized luminance signal thereby effecting a signal-to-noise ratio enhancement.
摘要翻译：在视频记录装置中，在剪切和应用于频率调制器之前，通过两个网络的级联连接来增强亮度信号。一个网络具有非线性相位特性和在亮度带的下部增加预定量的振幅响应，否则基本上是恒定的。另一个网络具有基本上线性的相位响应，以及亮度带上部的上升幅度响应。网络的相对振幅响应处于预定的关系，使得该组合呈现出在亮度带的下部由一个网络主导的频率相关变化，并且由亮度带的上部由另一个网络控制，由此，亮度信号接收到其带宽的两个部分的预加重的增加，并且减少了瞬态信号条件下的限幅失真。在视频再现装置中，去加重网络的组合对预加重的亮度信号赋予互补的去加重特性，从而实现信噪比增强。

7. 发明授权

US4314273A Chrominance transcoder 失效
标题翻译：色度转码器
公开(公告)号：US4314273A
公开(公告)日：1982-02-02
申请号：US154597
申请日：1980-05-29
申请人： John G. Amery
发明人： John G. Amery
IPC分类号： H04N9/80 , H04N9/79 , H04N9/898 , H04N9/42
CPC分类号： H04N9/7925 , H04N9/898
摘要： A transcoder useful in a video disc player includes a single multiplier in a chrominance signal path supplied with conversion signals which cause the multiplier to simultaneously frequency translate, conjugate and timebase correct a recovered chrominance signal in one format, such as NTSC, to produce a chrominance signal of another format such as PAL.
摘要翻译：在视频光盘播放器中有用的代码转换器包括提供有转换信号的色度信号路径中的单个乘法器，其使得乘法器同时频率平移，共轭和时基校正诸如NTSC的一种格式的恢复色度信号，以产生色度信号的另一种格式如PAL。

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