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公开(公告)号：US07023934B2
公开(公告)日：2006-04-04
申请号：US09952210
申请日：2001-09-12
CPC分类号： H03M13/3972 , H03M13/151 , H03M13/1515 , H03M13/25 , H03M13/258 , H03M13/27 , H03M13/2757 , H03M13/29 , H03M13/2966 , H03M13/2978 , H03M13/3905 , H03M13/3922 , H03M13/3927 , H03M13/3988 , H03M13/4107 , H03M13/6505 , H03M13/6561 , H04L1/0041 , H04L1/005 , H04L1/006 , H04L1/0065 , H04L1/0066 , H04L1/0068 , H04L1/0071
摘要： Method and apparatus for Min star calculations in a Map decoder. Min star calculations are performed by a circuit that includes a first circuit that performs an Min(A,B) operation simultaneously with a circuit that calculates a −log(1+e−|A−B|) value. The sign bit of the A−B calculation is used to select whether A or B is a minimum. The A−B calculation is also used to select either −log(1+e−|A−B|) or −log(1+e−|B−A|) as the correct calculation. In order to hasten the selection of either −log(1+e−|A−B|) or −log(1+e−|B−A|) as the correct calculation the apparatus does not wait for the A−B calculation to complete. Any bit of the A−B calculation between the third bit and final (sign bit) can be used for the selection. If an incorrect value is selected a log saturation circuit may correct the value. In addition an offset may be added −log(1+e−|A−B|) or −log(1+e−|B−A|) to assure that the calculation does not become negative, necessitating the use of an additional sign bit thereby increasing circuit complexity and slowing down the calculation. Additionally the log terms are computed based on a partial result of the A−B calculation.
摘要翻译： 地图解码器中Min Star计算的方法和装置。 最小星号计算由包括与计算-log（1 + e <| A-B | ）值的电路同时执行Min（A，B）操作的第一电路的电路执行。 A-B计算的符号位用于选择A或B是否为最小值。 AB计算还用于选择-log（1 + e - | AB | ）或-log（1 + e - | BA | ）作为正确的计算 。 为了加速-log（1 + e - | AB | ）或-log（1 + e - | BA | ）的选择作为正确的计算 设备不等待AB计算完成。 第三位和第三位（符号位）之间的A-B计算的任何位都可用于选择。 如果选择了不正确的值，日志饱和电路可能会更正该值。 此外，可以添加偏移量-log（1 + e < - > AB | ）或-log（1 + e < - > BA | ），以确保计算 不会变成负值，需要使用额外的符号位，从而增加电路复杂性并减慢计算。 另外，基于A-B计算的部分结果来计算对数项。
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2.发明授权Apparatus and methods for continuous and/or selective production of multiple light displays 失效用于连续和/或选择性地生产多个光显示器的装置和方法公开(公告)号：US06882117B1
公开(公告)日：2005-04-19
申请号：US10355400
申请日：2003-01-31
摘要： An apparatus for producing multiple light displays comprises: a discrete light source emitting at least one primary color; a circuit for driving the light source; a flexible tether secured to the light source; a handle secured to the flexible tether; and a control actuator. The drive circuit produces each of multiple time-dependent drive signals. The handle enables a user to move the light source along a curvilinear path at the end of the tether, the time-dependent drive signal and movement of the light source together producing the light display. The control actuator enables the user, while moving the light source along the curvilinear path and without substantially interrupting movement of the light source, to (i) alter the time-dependence of the drive signal and/or (ii) select another of the time-dependent drive signals for driving the light source, thereby altering the light display.
摘要翻译： 一种用于制造多个光显示器的装置，包括：发射至少一种原色的离散光源; 用于驱动光源的电路; 固定到光源的柔性系绳; 手柄固定在柔性绳索上; 和控制致动器。 驱动电路产生多个与时间有关的驱动信号。 手柄使用户能够沿着系绳末端的曲线路径移动光源，时间依赖的驱动信号和光源的移动一起产生光显示。 控制致动器使用户能够沿着曲线路径移动光源并且基本上不中断光源的移动，以便（i）改变驱动信号的时间依赖性和/或（ii）选择另一个时间 用于驱动光源的驱动信号，从而改变光显示。
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公开(公告)号：US5844377A
公开(公告)日：1998-12-01
申请号：US820517
申请日：1997-03-18
CPC分类号： H05B33/0857 , B62J6/20 , H05B33/0803 , A63F9/0604 , Y10S331/03
摘要： A kinetically multicolored light source is described, comprising: a light source capable of producing a plurality of primary colors; oscillatory means for driving said light source; and means for moving said light source. The oscillatory driving means may drive the light source so that one or more of the primary colors is alternately turned on and off at a frequency above the critical fusion frequency of an observer, whereby each of the colors appears to emanate simultaneously and continuously thereby appearing to the observer as a single secondary color when the light source moves slowly with respect to the observer. The light source may move relative to the observer sufficiently rapidly that each of the oscillating primary colors if viewed alone would appear to the observer to emanate from bright segments of a curvilinear path with intervening dark segments. When viewed together the path segments for each of the primary colors may spatially overlap to varying degrees depending on the relative frequency, amplitude, phase, and duty cycle at which each of the primary colors is produced. The observer may therefore observe a myriad of color alternation pattern along the curvilinear path, which may comprise one or more of: dark segments, bright primary color segments, and bright secondary color segments. Thus, by moving the light source sufficiently rapidly relative to the observer, visually striking, intriguing, and/or pleasing multicolored illuminated displays may be produced by a light source which appears monocolored when moving relatively slowly relative to the observer.
摘要翻译： 描述了一种动力学多彩色光源，包括：能够产生多种原色的光源; 用于驱动所述光源的振荡装置; 以及用于移动所述光源的装置。 振荡驱动装置可以驱动光源，使得一个或多个原色以高于观察者的临界融合频率的频率交替地开启和关闭，由此每种颜色看起来同时且连续地发出，从而出现 当光源相对于观察者缓慢移动时，观察者作为单个次级颜色。 光源可以充分快速地相对于观察者移动，如果单独观察到的每个振荡原色将对观察者出现，从具有中间暗段的曲线路径的亮段发出。 当一起观看每个原色的路径段可以根据产生每个原色的相对频率，幅度，相位和占空比在空间上重叠到不同程度。 因此，观察者可以沿着曲线路径观察到无数的颜色交替图案，其可以包括以下中的一个或多个：暗段，亮原色段和明亮的次级色段。 因此，通过相对于观察者足够快地移动光源，可以通过当相对于观察者相对缓慢地移动时出现单色的光源来产生视觉醒目，有趣和/或令人愉快的多彩照明显示器。
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公开(公告)号：US07430680B2
公开(公告)日：2008-09-30
申请号：US11169006
申请日：2005-06-29
IPC分类号： H03L7/06
CPC分类号： H03L7/0814 , G06F1/12
摘要： A system and method use an aligning device to align clock signals of two logic devices before data transfer between them. In this example, the aligning device aligns a clock signal of a sequencer with a clock signal of a storage device before the sequencer transfers data to the storage device. The aligning device includes a phase detector that receives a first reference clock signal, which is used to control the storage device, and a delayed signal, which is used to control the sequencer, and generates a comparison clock signal. The comparison clock signal is filtered before being used to control a phase of a second reference clock signal, which is related to the first reference clock signal. The phase controlled second clock signal is an aligning clock signal that is feed back to a delay device to produce one or more subsequent delay device clock signals that are aligned to the storage device clock or first reference clock signal. These subsequent delay device clock signals are transmitted to the aligning device and to the sequencer before each transfer occurs.
摘要翻译： 在它们之间的数据传输之前，系统和方法使用对准装置对准两个逻辑装置的时钟信号。 在该示例中，对准装置在定序器将数据传送到存储装置之前将定序器的时钟信号与存储装置的时钟信号对准。 对准装置包括相位检测器，其接收用于控制存储装置的第一参考时钟信号和用于控制定序器的延迟信号，并产生比较时钟信号。 在用于控制与第一参考时钟信号相关的第二参考时钟信号的相位之前，对比较时钟信号进行滤波。 相位控制的第二时钟信号是对准时钟信号，其被反馈到延迟器件以产生与存储器件时钟或第一参考时钟信号对准的一个或多个后续延迟器件时钟信号。 在每次传送发生之前，这些后续的延迟装置时钟信号被发送到对准装置和定序器。
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