公开(公告)号：US06310591B1

公开(公告)日：2001-10-30

申请号：US09370419

申请日：1999-08-09

Applicant: Daniel J. Morgan ,  Gregory S. Pettitt ,  Donald B. Doherty

Inventor： Daniel J. Morgan ,  Gregory S. Pettitt ,  Donald B. Doherty

IPC: G09G334

CPC classification number: G09G3/2055 ,  G09G3/2018 ,  G09G3/2037 ,  G09G3/2051 ,  G09G3/34 ,  G09G3/346 ,  G09G2320/0276 ,  G09G2340/0428

Abstract: A method and apparatus for spatially and temporally multiplexing display data. The use of this method results in a bit-depth resolution higher than that achievable by the system given a number of bits of resolution. The method includes the steps of determining the desired perceived resolution (26), establishing the number of bit-planes to be used to achieve that perceived resolution (28), using at least one of those bit-planes for spatial-temporal least significant bit values (STMLSBs) (30), referencing the developed values of the STMLSBs to fractional bit gray code levels (32), developing spatial patterns (34), determining whether the spatial patterns will start in a predetermined sequence or randomly from frame-to-frame (36), loading the data onto the modulator and displaying it (38). The apparatus includes a random number generator (48) and a look up table (50) to enable the choice between random and predetermined spatial patterns, and pattern logic (46), which produces the pattern to be used.

Abstract translation: 一种用于空间和时间复用显示数据的方法和装置。 使用这种方法会产生一个位深度分辨率，高于系统给出了许多分辨率位可实现的位深度分辨率。 该方法包括以下步骤：使用用于空间 - 时间最低有效位的这些位平面中的至少一个来确定要用于实现该感知分辨率（28）的位平面的数目的所需感知分辨率（26） 值（STMLSB）（30），将STMLSB的开发值引用到分数位灰度代码级（32），开发空间模式（34），确定空间模式是以预定的顺序开始还是从帧到 帧（36），将数据加载到调制器上并显示它（38）。 该装置包括随机数发生器（48）和查找表（50），以使得能够选择随机和预定的空间模式，以及产生要使用的模式的模式逻辑（46）。

公开(公告)号：US06201521B1

公开(公告)日：2001-03-13

申请号：US08721862

申请日：1996-09-27

Applicant: Donald B. Doherty

Inventor： Donald B. Doherty

IPC: G09G334

CPC classification number: G09G3/346 ,  G09G3/2022 ,  G09G2310/0218 ,  G09G2310/061

Abstract: A method of implementing pulse-width modulation in a display system (10, 20) that uses a spatial light modulator (SLM) (15). Each frame of data is divided into bit-planes, each bit-plane having one bit of data for each display element of the SLM and representing a bit weight of the intensity value to be displayed by the display elements. Each bit-plane has a display time corresponding to a portion of the frame period, with bit-planes of more significant bits having longer portions. The SLM is divided into reset groups connected to different reset lines (34), so that one reset group can be loaded and its display time begun while the next reset group is loaded. (FIG. 3). Short bit-planes are possible because the display time need not include the time to load the entire array, and for any reset group, its reset can be delayed while other reset groups are loaded.

Abstract translation: 一种在使用空间光调制器（SLM）的显示系统（10,20）中实现脉冲宽度调制的方法。 每帧数据被分成位平面，每个位平面具有SLM的每个显示元件的一位数据，并且表示由显示元件显示的强度值的位权重。 每个位平面具有对应于帧周期的一部分的显示时间，其中更高有效位的位平面具有较长部分。 SLM被分成连接到不同复位线（34）的复位组，使得可以加载一个复位组并且在下一个复位组被加载时其显示时间开始。 （图3）。 短位平面是可能的，因为显示时间不需要包括加载整个阵列的时间，对于任何复位组，其复位可以被延迟，而其他复位组被加载。

公开(公告)号：US06014128A

公开(公告)日：2000-01-11

申请号：US719529

申请日：1996-09-27

Applicant: Donald B. Doherty ,  Mark L. Burton ,  Vishal Markandey

Inventor： Donald B. Doherty ,  Mark L. Burton ,  Vishal Markandey

IPC: G09G3/20 ,  G09G3/34 ,  H04N9/64

CPC classification number: G09G3/2022 ,  G09G3/34 ,  H04N9/641 ,  G09G2320/0266 ,  G09G3/2018

Abstract: A method of evaluating pulse width modulation patterns for a spatial light modulator display device. The method makes use of a light difference series function. This series function is obtained by representing on or off times of a display element as a light function. (FIG. 3). Two such light functions can be subtracted to compare two different patterns on the same display element (interframe) or to compare the same pattern on different display elements (intraframe). (FIG. 4). The result of the subtraction is a light difference function (FIG. 5), which can be expressed as a series function. Mathematical expressions using the series function correlate to various optical characteristics.

Abstract translation: 一种用于评估空间光调制器显示装置的脉冲宽度调制图案的方法。 该方法利用光差序列功能。 通过将显示元件的开启或关闭时间表示为光功能来获得该串联功能。 （图3）。 可以减去两个这样的光功能来比较同一显示元件（帧间）上的两个不同图案，或者比较不同显示元素（帧内）上的相同图案。 （图4）。 减法的结果是光差函数（图5），其可以表示为串联函数。 使用串联函数的数学表达式与各种光学特性相关。

公开(公告)号：US5680156A

公开(公告)日：1997-10-21

申请号：US333199

申请日：1994-11-02

Applicant: Robert John Gove ,  Keiichiroh Abe ,  Sohichiroh Kamei ,  Donald B. Doherty

Inventor： Robert John Gove ,  Keiichiroh Abe ,  Sohichiroh Kamei ,  Donald B. Doherty

IPC: G09G3/20 ,  G09G3/34 ,  H04N5/74 ,  H04N7/167

CPC classification number: H04N5/7458 ,  G09G3/2022 ,  G09G3/2092 ,  H04N1/1934

Abstract: A data reformatter/frame memory (112) for efficiently orthogonally reordering a digital data stream. The disclosed reformatter/frame memory (112) is typically used in conjunction with a display device (124) for displaying the digital data, and a display controller (132) for coordinating the transfer of data between the reformatter/frame memory (112) and the display device (124). According to one embodiment, a data reformatter for a video display system includes at least one reformatter memory plane (60). The memory plane (60) comprises an input bus, an m.times.n array of memory cells (80) in communication with the input bus, and an m-bit-wide output bus. The array of memory cells (80) receives and stores m n-bit-wide input data words and outputs n m-bit-wide output data words. Each of the m-bit-wide output data words is comprised of one bit from each of the m n-bit-wide input data words.

Abstract translation: 一种用于有效地正交重新排序数字数据流的数据重新格式化器/帧存储器（112）。 所公开的重新格式化器/帧存储器（112）通常与用于显示数字数据的显示设备（124）一起使用，以及显示控制器（132），用于协调重新格式化器/帧存储器（112）和 显示装置（124）。 根据一个实施例，用于视频显示系统的数据重新格式化器包括至少一个重新格式化器存储器平面（60）。 存储器平面（60）包括输入总线，与输入总线通信的存储单元（80）的m×n阵列和m位宽的输出总线。 存储单元阵列（80）接收并存储m个n位宽的输入数据字并输出n个m位宽的输出数据字。 m位宽输出数据字中的每一个包括来自m个n位宽输入数据字中的每一个的一位。

公开(公告)号：US5598188A

公开(公告)日：1997-01-28

申请号：US476162

申请日：1995-06-07

Applicant: Robert J. Gove ,  Keiichiroh Abe ,  Sohichiroh Kamei ,  Donald B. Doherty

Inventor： Robert J. Gove ,  Keiichiroh Abe ,  Sohichiroh Kamei ,  Donald B. Doherty

IPC: G09G3/20 ,  G09G3/34 ,  H04N5/74 ,  G09G5/00

CPC classification number: H04N5/7458 ,  G09G3/2022 ,  G09G3/2092 ,  H04N1/1934

Abstract: A data reformatter/frame memory (112) for efficiently orthogonally reordering a digital data stream. The disclosed reformatter/frame memory (112) is typically used in conjunction with a display device (124) for displaying the digital data, and a display controller (132) for coordinating the transfer of data between the reformatter/frame memory (112) and the display device (124). According to one embodiment, a data reformatter for a video display system includes at least one reformatter memory plane (60). The memory plane (60) comprises an input bus, an m.times.n array of memory cells (80) in communication with the input bus, and an m-bit-wide output bus. The array of memory cells (80) receives and stores m n-bit-wide input data words and outputs n m-bit-wide output data words. Each of the m-bit-wide output data words is comprised of one bit from each of the m n-bit-wide input data words.

公开(公告)号：US5497172A

公开(公告)日：1996-03-05

申请号：US259402

申请日：1994-06-13

Applicant: Donald B. Doherty ,  Robert J. Gove ,  Mark L. Burton ,  Rodney D. Miller

Inventor： Donald B. Doherty ,  Robert J. Gove ,  Mark L. Burton ,  Rodney D. Miller

IPC: G09G3/18 ,  G09G3/20 ,  G09G3/34 ,  H04N5/66

CPC classification number: G09G3/2014 ,  G09G3/2022 ,  G09G3/2033 ,  G09G3/34 ,  G09G3/2018

Abstract: A method of implementing pulse-width modulated image display systems (10, 20) with a spatial light modulator (SLM) (15) configured for split-reset addressing. Display frame periods are divided into time slices. Each frame of data is divided into bit-planes, each bit-plane having one bit of data for each pixel element and representing a bit weight of the intensity value to be displayed by that pixel element. Each bit-plane has a display time corresponding to a number of time slices, with bit-planes of higher bit weights being displayed for more time slices. The bit-planes are further formatted into reset groups, each reset group corresponding to a reset group of the SLM (15). The display times for reset groups of more significant bits are segmented so that the data can be displayed in segments rather than for a continuous time. During loading, segments of corresponding bit-planes are temporally aligned from one reset group to the next. The display times for less significant bits are not segmented but are temporally aligned to the extent possible without loading conflicts.

Abstract translation: 一种用于分配复位寻址的空间光调制器（SLM）（15）实现脉冲宽度调制图像显示系统（10,20）的方法。 显示帧周期分为时间片。 每个数据帧被分成位平面，每个位平面具有每个像素元素的一位数据，并且表示要由该像素元素显示的强度值的位权重。 每个位平面具有对应于多个时间片的显示时间，其中更高位权重的位平面被显示用于更多的时间片。 位平面被进一步格式化为复位组，每个复位组对应于SLM的复位组（15）。 更高有效位的复位组的显示时间被分段，以便可以以段而不是连续显示数据。 在加载期间，相应位平面的段在时间上从一个复位组到下一个复位组。 较低有效位的显示时间不分段，但在不加载冲突的情况下在时间上对齐的程度。

公开(公告)号：US5448314A

公开(公告)日：1995-09-05

申请号：US179028

申请日：1994-01-07

Applicant: Scott D. Heimbuch ,  Jeffrey B. Sampsell ,  Robert J. Gove ,  Stephen W. Marshall ,  Donald B. Doherty ,  Gary L. Sextro ,  Carl W. Davis ,  Joseph G. Egan

Inventor： Scott D. Heimbuch ,  Jeffrey B. Sampsell ,  Robert J. Gove ,  Stephen W. Marshall ,  Donald B. Doherty ,  Gary L. Sextro ,  Carl W. Davis ,  Joseph G. Egan

IPC: H04N9/07 ,  G09G3/20 ,  G09G3/34 ,  H04N9/30 ,  H04N9/31 ,  H04N9/12

CPC classification number: G09G3/2025 ,  G09G3/34 ,  H04N9/30 ,  H04N9/3114 ,  G09G2310/0235 ,  G09G3/346

Abstract: A sequential color system is provided in which a processor (22) is coupled to a memory (24) and a receiver (27). Images are generated by shining light from a light source (28) through a color wheel (30) and onto DMD array (26). Light from the DMD array (26) is shone on screen (32). By adjusting the speed and make-up of color wheel (30) color separation is greatly reduced or eliminated. Also there are techniques for sequential imaging which may be applied to other technologies, such as CRT technologies.

Abstract translation: 提供了一种顺序色彩系统，其中处理器（22）耦合到存储器（24）和接收器（27）。 通过将来自光源（28）的光通过色轮（30）照射到DMD阵列（26）上而产生图像。 来自DMD阵列（26）的光照在屏幕（32）上。 通过调整色轮的速度和组成（30），颜色分离大大减少或消除。 还有一些顺序成像技术可用于其他技术，如CRT技术。

公开(公告)号：US07916104B2

公开(公告)日：2011-03-29

申请号：US11140048

申请日：2005-05-27

Applicant: Gregory James Hewlett ,  Donald B. Doherty

Inventor： Gregory James Hewlett ,  Donald B. Doherty

IPC: G09G3/34

CPC classification number: G09G3/346 ,  G09G3/2014 ,  G09G3/3406 ,  G09G2320/0252 ,  G09G2320/0646

Abstract: A method for increasing intensity resolution (bit-depth) using LED illumination. A preferred embodiment comprises determining a display time for a bit to be displayed on a display system, with the display time being based upon a weighting of the bit. If the display time is less than a minimum display time of the display system, then a light modulator and light source modulation are to be used to display the bit. If the display time is equal to or greater than the minimum display time, then a light modulator is to be used to display the bit. The use of a light source that can switch at a faster rate than the light modulator can change states and/or a light source that can produce light at multiple intensities can permit the display of less light and thereby increase the bit-depth of the display system.

Abstract translation: 一种使用LED照明提高强度分辨率（位深度）的方法。 优选实施例包括确定要在显示系统上显示的位的显示时间，其中显示时间基于位的加权。 如果显示时间小于显示系统的最小显示时间，则将使用光调制器和光源调制来显示该位。 如果显示时间等于或大于最小显示时间，则使用光调制器来显示该位。 使用可以以比光调制器更快的速率切换的光源可以改变状态和/或可以以多个强度产生光的光源可以允许显示较少的光，从而增加显示器的位深度 系统。

公开(公告)号：US20090154819A1

公开(公告)日：2009-06-18

申请号：US11957922

申请日：2007-12-17

Applicant: Donald B. Doherty ,  Alan S. Hearn

Inventor： Donald B. Doherty ,  Alan S. Hearn

IPC: G06K9/03

CPC classification number: H04N19/423 ,  H04N9/67 ,  H04N19/46

Abstract: An image compression and decompression method compresses data based upon the data states, and decompresses the compressed data based upon the codes generated during the compression.

Abstract translation: 图像压缩和解压缩方法基于数​​据状态压缩数据，并且基于在压缩期间生成的代码来解压缩压缩数据。

公开(公告)号：US07061512B2

公开(公告)日：2006-06-13

申请号：US10458408

申请日：2003-06-10

Applicant: Daniel J. Morgan ,  Donald B. Doherty ,  William J. Sexton

Inventor： Daniel J. Morgan ,  Donald B. Doherty ,  William J. Sexton

IPC: G09G5/10

CPC classification number: H04N9/3117 ,  G09G3/2014 ,  G09G3/34 ,  G09G5/02 ,  G09G2310/0235

Abstract: A display system 100 includes a light source 110 and a color wheel 114. An optical section 112 is arranged to receive light from the light source 110 and to direct the light toward a color wheel 114. A digital micromirror device 122 is arranged to receive the light from the color wheel 114 and to direct image data toward a display. The image data includes an array of pixels arranged in rows and columns. The array of pixels is arranged as curved color bands during a first time period and rectangular color bands during a second time period. The second time period being concurrent with but of a shorter duration than the first time period.