公开(公告)号：EP1521480A3

公开(公告)日：2005-04-27

申请号：EP04104310.0

申请日：2004-09-07

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pettitt, Gregory S. ,  Doherty, Donald B.

IPC: H04N9/31 ,  H04N5/74

Abstract: Methods and apparatus for use with a discrete bit display system such as a DLP® display system for increasing brightness by using secondary light bits (such as spoke bits that are otherwise wasted). The light available from the secondary bits is distributed over the entire input/output dynamic range by determining the maximum possible output and then defining the dynamic output range from zero to that maximum range in response to the full range of the input signals. R, G and B input signals (151, 153, 155) are provided to a primary pulse select circuit (157) for each pixel of a display frame. The same signals (151, 153, 155) are also provided to a color ratio calculation circuitry (161) which provides the ability to select color ratio indexing into a three dimensional look-up table (3D LUT) which provides gained R,G, B signals. A dynamic range adjustment circuit (217) looks at the gained R, G and B signals, and if any of these signals are greater than the normal dynamic range of the display, then the out of range signal is adjusted by the use of a white, secondary, pulse or spoke bit as determined by circuit (217).

公开(公告)号：EP0662773B1

公开(公告)日：1999-06-30

申请号：EP95100124.7

申请日：1995-01-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H04N9/31 ,  H04N9/30

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

公开(公告)号：EP0845771A2

公开(公告)日：1998-06-03

申请号：EP97120858.2

申请日：1997-11-27

Applicant: Texas Instruments Incorporated

Inventor： Hewlett, Gregory J. ,  Doherty, Donald B.

IPC: G09G3/34

CPC classification number: G09G3/346 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/2033 ,  G09G2310/0205 ,  G09G2310/061

Abstract: A method of automatically generating a load/reset sequence for a display system having a spatial light modulator whose display elements that are loaded with data and reset between loads. Bit-planes of data are classified according to their display times as normal, short, or reset-release. Extra time of normal bit-planes is calculated. The display times of normal bit-planes are adjusted by subtracting or adding extra time, such that any normal bit-plane displayed before a short or reset-release bit-plane includes sufficient extra time to allow for loading the short or reset-release bit-plane. Also, reset conflicts are detected and avoided.

Abstract translation: 一种自动生成具有空间光调制器的显示系统的加载/复位序列的方法，该空间光调制器的显示元件被加载数据并在负载之间复位。 数据的位平面根据其显示时间进行分类，如正常，短路或复位释放。 计算正常位平面的额外时间。 正常位平面的显示时间通过减去或增加额外时间进行调整，使得在短暂或复位释放位平面之前显示的任何正常位平面包括足够的额外时间，以允许加载短路或复位释放位 - 平面。 此外，检测并避免了复位冲突。

公开(公告)号：EP0686954A1

公开(公告)日：1995-12-13

申请号：EP95108530.7

申请日：1995-06-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Doherty, Donald B.

IPC: G09G3/34

CPC classification number: G09G3/2022 ,  G09G3/2033 ,  G09G3/34 ,  G09G3/346 ,  G09G2300/0473 ,  G09G2310/0262

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. As in conventional PWM methods, the frame period is divided into a number of time slices. However, the total number of time slices and the allocation of time slices among pixel data is determined by the number of times that pixel data is delivered to the SLM (15) rather than by binary patterns.

Abstract translation: 一种用配置用于分离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。 如在传统的PWM方法中，帧周期被分成多个时间片。 然而，像素数据中的时间片的总数和时间片的分配由像素数据被传送到SLM（15）而不是二进制模式的次数确定。

公开(公告)号：EP0662774A1

公开(公告)日：1995-07-12

申请号：EP95100128.8

申请日：1995-01-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gove, Robert J. ,  Heimbuch, Scott D. ,  Markandey, Vishal (nmi) ,  Marshall, Stephen W. ,  Doherty, Donald B.

IPC: H04N9/69 ,  H04N9/30

CPC classification number: H04N9/69 ,  H04N9/30

Abstract: A processing system for a digital display system that receives a gamma-corrected, component, video signal for display on a spatial light modulator. The video input is digitized and the digitized data is converted to RGB colorspace, prior to being linearized by a de-gamma process that removes all or part of the gamma-correction. Additional processing, such as line generation, may be performed before or after colorspace conversion and linearization. Various techniques can be implemented for reducing the quantization effects of digital linearization.

Abstract translation: 一种用于数字显示系统的处理系统，其接收用于在空间光调制器上显示的伽马校正的分量视频信号。 视频输入被数字化，数字化数据被转换为RGB色彩空间，然后通过去除伽马校正的全部或部分的去伽马处理线性化。 可以在颜色空间转换和线性化之前或之后执行诸如线生成的附加处理。 可以实现各种技术来减少数字线性化的量化效应。

公开(公告)号：EP0651581A2

公开(公告)日：1995-05-03

申请号：EP94116987.2

申请日：1994-10-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gove, Robert J ,  Doherty, Donald B. ,  Heimbuch, Scott D. ,  Urbanus, Paul M. ,  Marshall, Stephen W. ,  Markandey, Vishal ,  Meyer, Richard C.

IPC: H04N7/26

CPC classification number: H04N9/3147 ,  H04N5/14 ,  H04N5/4401 ,  H04N5/7458 ,  H04N7/0122 ,  H04N19/30 ,  H04N19/423 ,  H04N19/436 ,  H04N19/61 ,  H04N21/4402 ,  H04N2005/7466

Abstract: A digital television system (10) is provided. System (10) may receive a video signal at composite video interface and separation circuit (16). The video signal is separated into component form by composite video interface and separation circuit (16). The component video signals are converted to digital component video signals in analog to digital converter circuit (18). Line slicer (14) divides each line of digital component video signal into a plurality of channels such that each channel may be processed in parallel by channel signal processors (22a) through (22d). Each channel signal processor (22a) through (22d) may provide two lines of output for each line of video input. The processed digital component video signals may be formatted for displays (26a) through (26c) in formatters (24a) through (24c). Each formatter (24a) through (24c) may comprise a plurality of first in-first out buffer memories (34a) through (34j). One of each channel signal processors (22a) through (22d) may be coupled to two of first in-first out buffer memories (34a) through (34j). Additionally, each formatter (24a) through (24c) may comprise channel data format units (38a) through (38d), each associated with a channel of, for example, display (24a). Channel data format units (38a) through (38d) are coupled to appropriate of first in-first out buffer memories (34a) through (34j) via multiplexers (36a) through (36d). Each formatter (24a) through (24c) may remove overlap between channels of system (10) and may format the processed video signal into appropriate channels for displays (26a) through (26c).

Abstract translation: 提供数字电视系统（10）。 系统（10）可以在复合视频接口和分离电路（16）处接收视频信号。 视频信号由复合视频接口和分离电路（16）分离成组件形式。 分量视频信号在模数转换器电路（18）中转换成数字分量视频信号。 线路限幅器（14）将每行数字分量视频信号划分为多个通道，使得每个通道可以由通道信号处理器（22a）至（22d）并行处理。 每个通道信号处理器（22a）到（22d）可以为每行视频输入提供两行输出。 经处理的数字分量视频信号可以格式化为在格式化器（24a）到（24c）中的显示器（26a）至（26c）。 每个格式化器（24a）到（24c）可以包括多个先进先出缓冲存储器（34a）至（34j）。 每个通道信号处理器（22a）至（22d）中的一个可以耦合到两个先进先出的缓冲存储器（34a）至（34j）。 另外，每个格式化器（24a）到（24c）可以包括通道数据格式单元（38a）至（38d），每个与例如显示器（24a）的通道相关联。 信道数据格式单元（38a）至（38d）通过多路复用器（36a）至（36d）耦合到适当的先进先出缓冲存储器（34a）至（34j）。 每个格式器（24a）到（24c）可以去除系统（10）的通道之间的重叠，并且可以将经处理的视频信号格式化成用于显示器（26a）至（26c）的适当通道。

公开(公告)号：EP0651580B1

公开(公告)日：2002-01-30

申请号：EP94116986.4

申请日：1994-10-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gove, Robert J. ,  Doherty, Donald B. ,  Marshall, Stephen W. ,  Davis, Carl W. ,  Egan, Joseph G. ,  Meyer, Richard C. ,  Sampsell, Jeffrey B. ,  Heimbuch, Scott D. ,  Markandey, Vishal

IPC: H04N7/26

CPC classification number: H04N9/3147 ,  H04N5/14 ,  H04N5/4401 ,  H04N5/7458 ,  H04N7/0122 ,  H04N19/30 ,  H04N19/423 ,  H04N19/436 ,  H04N19/61 ,  H04N21/4402 ,  H04N2005/7466

公开(公告)号：EP0981127A1

公开(公告)日：2000-02-23

申请号：EP99202669.0

申请日：1999-08-17

Applicant: Texas Instruments Incorporated

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

IPC: G09G3/34

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上复用的显示数据的方法和装置。 使用这种方法的结果是一个比特深度分辨率比可实现的更高的由下式给出了一些分辨率的位数的系统。 该方法包括将期望的感知分辨率（26）建立的位平面的数目被用来实现并感知分辨率（28）确定的挖掘的步骤，使用至少一个这些比特平面为空间 - 时间至少显著位 值（STMLSBs）（30），它引用了STMLSBs到小数位格雷码电平的开发的值（32），显影空间模式（34），确定的采矿无论空间模式将按照预定顺序启动或随机地从帧至 框架（36），加载该数据到调制器和显示它（38）。 该装置包括：一个随机数发生器（48）和查找表（50），以使随机的和预定的空间模式之间的选择，并且其产生将要使用的图案图案逻辑（46）。

公开(公告)号：EP0770981A2

公开(公告)日：1997-05-02

申请号：EP96116031.4

申请日：1996-10-07

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Markandey, Vishal ,  Doherty, Donald B. ,  Gove, Robert J.

IPC: G09G3/34

CPC classification number: G09G3/2007 ,  G09G3/2018 ,  G09G3/2037 ,  G09G3/346 ,  G09G2320/0266 ,  H04N5/7458 ,  H04N2005/7466

Abstract: A method of pulse width modulation using a spatial light modulator (40) with a finite transition time. The method uses m bits per sample to digitize the incoming data, but apportions the LSB times for pulse width modulation based upon m-1 bits. The current video frame displays all of the bits for each sample, except for the LSBs for each sample. The next video frame displays all of the bits for each sample, adding one more LSB for dividing up the frame time. The first frame could use either the additional LSB time and display no data, or it could use only that number of LSB times it needs. In the latter, the system will have to adjust to different partitions of the frame time for alternating frames. The system includes a spatial light modulator (40), a memory (42), a formatter (48), a sequence controller (44) and a toggle circuit (46), to perform this method.

Abstract translation: 一种使用具有有限转换时间的空间光调制器（40）进行脉宽调制的方法。 该方法使用每个采样的m位数字化输入数据，但是基于m-1位将脉冲宽度调制的LSB乘以分配。 当前视频帧显示每个样本的所有位，除了每个样本的LSB。 下一个视频帧显示每个样本的所有位，并添加一个LSB​​以分割帧时间。 第一帧可以使用附加的LSB时间并且不显示任何数据，也可以仅使用它需要的LSB次数。 在后者中，系统将不得不针对交替帧调整帧时间的不同分区。 该系统包括空间光调制器（40），存储器（42），格式化器（48），序列控制器（44）和切换电路（46），以执行该方法。

公开(公告)号：EP0712241A3

公开(公告)日：1997-05-02

申请号：EP95117913.4

申请日：1995-11-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Urbanus, Paul M. ,  Doherty, Donald B.

IPC: H04N5/262

CPC classification number: H04N9/30 ,  G09G3/346 ,  G09G5/02 ,  G09G2340/10 ,  H04N5/7458

Abstract: An SLM-based digital display system (10) having a graphics display subsystem (13 and 18) for closed captioning, on-screen displays, and other graphics images that are overlaid on the video image. The graphics display subsystem (13 and 18) has a graphics processor (21) that prepares the graphics data, which is inserted into the video data path after video data processing and prior to a look-up table unit (27). A select logic unit (24) provides a control signal to a multiplexer (26) that selects between video data and graphics data for input to the look-up table unit (27). The look-up table unit (27) performs its mapping according to the type of data received, such as by linearizing video data or palletizing graphics data.

Abstract translation: 一种基于SLM的数字显示系统（10），其具有用于隐藏字幕的图形显示子系统（13和18），屏幕显示和覆盖在视频图像上的其他图形图像。 图形显示子系统（13和18）具有图形处理器（21），其准备图形数据，其在视频数据处理之后并且在查找表单元（27）之前被插入到视频数据路径中。 选择逻辑单元（24）向多路复用器（26）提供控制信号，多路复用器选择视频数据和图形数据，以便输入到查找表单元（27）。 查找表单元（27）根据所接收的数据的类型来执行其映射，例如通过线性化视频数据或码垛图形数据。