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    • 31. 发明授权
    • System for recording and automatic playback of a musical performance
    • 用于录制和自动播放音乐表演的系统
    • US4215619A
    • 1980-08-05
    • US972625
    • 1978-12-22
    • Gerald A. BudelmanJames A. Turner
    • Gerald A. BudelmanJames A. Turner
    • G10H1/00G10H7/00G10H1/02G10H5/00
    • G10H7/002G10H1/005Y10S84/30
    • A musical keyboard instrument is disclosed for recording and storing a musical performance and then automatically playing back the performance. As is conventional, a keyboard having a plurality of keys is provided, along with musical tone generators that are associated with the keys. In accordance with the disclosed invention, means are provided for sensing, at a sensing time, those of the keys which are activated. A sequence of frames are generated, each frame including digital information representative of the keys that are activated at a given sensing time. The duration of each frame is a function of the relative locations of the keys activated at a given sensing time, and is therefore a duration which can vary from frame to frame. Each sensing time is determined by the previously completed frame, i.e., when a frame is complete, the statuses of the keys are again sensed so that the next frame can be generated. The sequences of frames are stored on magnetic tape. In a preferred form of the invention, the keys are divided into groups or "ports", and the digital information for each frame includes identification of the ports that have one or more activated keys and identification of the individual keys that are activated within that port. The rationale of this coding scheme is particularly compatible with the physical characteristics and manual dexterity of a human playing a keyboard instrument. The digital information of each frame is encoded in frequency shift keyed form and frequency shift keyed signals are recorded by generating digitally synthesized sinusoidal signals for application to magnetic tape.
    • 公开了一种音乐键盘乐器,用于记录和存储音乐表演,然后自动地回放演奏。 如常规的那样,提供具有多个键的键盘以及与键相关联的乐音发生器。 根据所公开的发明,提供了用于在感测时间感测被激活的键的装置的装置。 生成一系列帧,每个帧包括表示在给定感测时间被激活的密钥的数字信息。 每帧的持续时间是在给定感测时间激活的键的相对位置的函数,因此是可以随帧而变化的持续时间。 每个感测时间由先前完成的帧确定,即当帧完成时,再次感测到键的状态,使得可以生成下一帧。 帧序列存储在磁带上。 在本发明的优选形式中,密钥被分成组或“端口”,并且每个帧的数字信息包括具有一个或多个激活的密钥的端口的标识和在该端口内被激活的各个密钥的标识 。 该编码方案的基本原理特别与人们玩键盘乐器的物理特性和手动灵巧性相兼容。 每帧的数字信息以频移键控形式进行编码,并通过生成用于应用于磁带的数字合成正弦信号来记录频移键控信号。
    • 32. 发明授权
    • Display system for high-definition projectors
    • 高分辨率投影机显示系统
    • US09188850B2
    • 2015-11-17
    • US11853013
    • 2007-09-10
    • James A. TurnerJonathan L. Dugdale
    • James A. TurnerJonathan L. Dugdale
    • G09B9/00H04N5/64G03B37/04G03B21/56G09B9/05G09B9/32H04N9/31
    • G03B37/04G03B21/56G09B9/05G09B9/32H04N9/3147
    • A display system is provided to surround a user with an out-the window scene. The system includes a screen structure that is a facetted back-projection dome made up of a polygonal polar top facet surrounded by trapezoidal facets angulated downward from it in an upper facet row. A middle row of facets extends angulated downward therefrom, and a lower row of trapezoidal facets extends down from them. Each facet has video projected thereon by a high definition projector, and to maximize resolution and efficiently use the projector output, the vertical height of each facet makes use of the full vertical field of pixels available from the associated projector. The facets are all tangent to a sphere about a design eyepoint of the dome. The projector resolutions and the size, position and material of the facets are such that the imagery visible on the inside of the dome on the facets is at resolution corresponding to a visual acuity of 20/50 or higher, preferably 20/20, and at or near eye-limiting resolution.
    • 提供了一种显示系统来围绕用户进行外部窗口场景。 该系统包括屏幕结构,该屏幕结构是由多面极化顶面构成的刻面背投影圆顶,该多面极化顶面由在上面的一排从其向下成角度的梯形面包围。 中间一排小面从其向下延伸,并且下排的梯形面从它们向下延伸。 每个刻面都具有通过高分辨率投影仪在其上投影的视频,并且为了最大化分辨率并有效地使用投影仪输出,每个小平面的垂直高度利用可从相关联的投影仪获得的像素的全垂直场。 小平面与圆顶的设计眼点相关。 投影仪分辨率以及小平面的尺寸,位置和材料使得在小平面上圆顶的内部可见的图像具有对应于20/50或更高,优选20/20的视力的分辨率,并且在 或近眼界限分辨率。
    • 33. 发明授权
    • Dynamic display optimization method and system with image motion
    • 动态显示优化方法和具有图像运动的系统
    • US07593026B2
    • 2009-09-22
    • US11127787
    • 2005-05-11
    • James A. Turner
    • James A. Turner
    • G09G5/10
    • G09B9/307
    • A system displays video to a user and has a display device with a field of pixels. It displays video to the user in the form of a series of discrete sequential frame images each made up of a first predetermined number of bit planes in which the pixels of the display are either off or have a color and intensity that is uniform over the field of pixels. The apparatus detects when a movement condition is present, such as rapid head movement or an object in the video crossing the display rapidly, in which condition the user's eye may tend to track across the display device at a rate at which perception of the video displayed may be reduced in quality, and it generates a condition-present signal when such a movement condition is detected. Responsive to generation of said condition-present signal, the apparatus causes the display device to display the frame images using fewer bit planes for each frame image than when said movement condition is not detected. Display with the original number of bit planes returns when the movement condition is over.
    • 系统向用户显示视频并具有带有像素场的显示设备。 它以一系列离散的顺序帧图像的形式向用户显示视频,每个图像由第一预定数量的位平面组成,其中显示器的像素关闭或具有在场上均匀的颜色和强度 的像素。 该装置检测何时存在移动状态,例如快速头部移动或视频中的物体快速穿过显示器,在该状态下,用户的眼睛可能倾向于以显示的视频的感觉显示在显示设备上 可以降低质量,并且当检测到这样的移动条件时,其产生状况信号。 响应于所述条件信号的产生,该装置使得显示装置使用比每个帧图像更少的位平面来显示比不检测到所述移动条件时的帧图像。 当运动条件结束时,原始位数平面的显示返回。
    • 34. 发明申请
    • DISPLAY SYSTEM FOR HIGH-DEFINITION PROJECTORS
    • 高分辨率投影机显示系统
    • US20090066858A1
    • 2009-03-12
    • US11853013
    • 2007-09-10
    • James A. TurnerJonathan L. Dugdale
    • James A. TurnerJonathan L. Dugdale
    • H04N9/31G03B21/56
    • G03B37/04G03B21/56G09B9/05G09B9/32H04N9/3147
    • A display system is provided to surround a user with an out-the window scene. The system includes a screen structure that is a facetted back-projection dome made up of a polygonal polar top facet surrounded by trapezoidal facets angulated downward from it in an upper facet row. A middle row of facets extends angulated downward therefrom, and a lower row of trapezoidal facets extends down from them. Each facet has video projected thereon by a high definition projector, and to maximize resolution and efficiently use the projector output, the vertical height of each facet makes use of the full vertical field of pixels available from the associated projector. The facets are all tangent to a sphere about a design eyepoint of the dome. The projector resolutions and the size, position and material of the facets are such that the imagery visible on the inside of the dome on the facets is at resolution corresponding to a visual acuity of 20/50 or higher, preferably 20/20, and at or near eye-limiting resolution.
    • 提供了一种显示系统来围绕用户进行外部窗口场景。 该系统包括屏幕结构,该屏幕结构是由多面极化顶面构成的刻面背投影圆顶,该多面极化顶面由在上面的一排从其向下成角度的梯形面包围。 中间一排小面从其向下延伸,并且下排的梯形面从它们向下延伸。 每个刻面都具有通过高分辨率投影仪在其上投影的视频,并且为了最大化分辨率并有效地使用投影仪输出,每个小平面的垂直高度利用可从相关联的投影仪获得的像素的全垂直场。 小平面与圆顶的设计眼点相关。 投影仪分辨率以及小平面的尺寸,位置和材料使得在小平面上圆顶的内部可见的图像具有对应于20/50或更高,优选20/20的视力的分辨率,并且在 或近眼界限分辨率。