Video data formatter for a multi-channel digital television system
without overlap
    1.
    发明授权
    Video data formatter for a multi-channel digital television system without overlap 失效
    用于多声道数字电视系统的视频数据格式化器,无重叠

    公开(公告)号:US5488431A

    公开(公告)日:1996-01-30

    申请号:US407788

    申请日:1995-03-20

    摘要: A digital television system (10) 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).

    摘要翻译: 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。 视频信号通过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)中被转换成数字分量视频信号。 线路限幅器(14)将数字分量视频信号的每一行分成多个通道,使得各信道可以被信道信号处理器(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,每个格式器(24a)到(24c)可以包括通道数据格式单元(38a)到(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)到(36d)耦合到适当的先进先出缓冲存储器(34a)至(34j)。 每个格式化器(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)到(26c)的适当通道。

    Displaying video data on a spatial light modulator
    5.
    发明授权
    Displaying video data on a spatial light modulator 失效
    在空间光调制器上显示视频数据

    公开(公告)号:US06300924B1

    公开(公告)日:2001-10-09

    申请号:US08561223

    申请日:1995-11-21

    IPC分类号: G09G334

    摘要: An SLM-based video receiver (10) receives a video input of some standardized format at a signal interface unit (11) and passes the input to a processor (12). The processor (12) performs analog-to-digital conversion if the pixel data is analog and also performs other enhancements to prepare the pixel data for loading into a video memory (14). The pixel data from the processor (12), representing a field of pixel data, is stored into the memory (14) for loading into rows of pixel elements of a spatial light modulator (16). The spatial light modulator (16) receives the pixel data in rows and each individual pixel element responds accordingly. The pixel elements of the spatial light modulator (16) emit light or reflect light from a source (18) and generate a video frame for display on a screen (20). By exploiting the addressing functions of the spatial light modulator (16), the SLM-based video receiver (10) displays a video frame using a field of pixel data.

    摘要翻译: 基于SLM的视频接收器(10)在信号接口单元(11)处接收一些标准格式的视频输入,并将输入传递给处理器(12)。 如果像素数据是模拟的,则处理器(12)执行模数转换,并且还执行其他增强以准备用于加载到视频存储器(14)中的像素数据。 来自处理器(12)的表示像素数据的像素数据被存储到存储器(14)中,用于加载到空间光调制器(16)的像素元件行中。 空间光调制器(16)以行的形式接收像素数据,并且各个像素元件相应地进行响应。 空间光调制器(16)的像素元件发光或反射来自源(18)的光,并产生用于在屏幕(20)上显示的视频帧。 通过利用空间光调制器(16)的寻址功能,基于SLM的视频接收器(10)使用像素数据的场来显示视频帧。

    Graphics subsystem for digital television
    6.
    发明授权
    Graphics subsystem for digital television 失效
    数字电视图形子系统

    公开(公告)号:US5519450A

    公开(公告)日:1996-05-21

    申请号:US339098

    申请日:1994-11-14

    摘要: 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.

    摘要翻译: 一种基于SLM的数字显示系统(10),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。

    Color phase control for projection display using spatial light modulator
    8.
    发明授权
    Color phase control for projection display using spatial light modulator 失效
    使用空间光调制器进行投影显示的彩色相位控制

    公开(公告)号:US5365283A

    公开(公告)日:1994-11-15

    申请号:US93537

    申请日:1993-07-19

    IPC分类号: H04N9/31 H04N9/14 H04N9/47

    摘要: A SLM-based projection display system (10) samples and processes video data for delivery to a spatial light modulator (SLM) (13c), and uses a color wheel (14a) to color the SLM-generated images. A frame memory (13b) provides data to the SLM (13c) and is managed so that, if the phase of the incoming video signal changes, a desired phase relationship between the color wheel position and the data available to the SLM (13c) can be maintained. Also, a motor control unit (15a) uses a horizontal sync signal to generate a drive signal for the color wheel motor (16a), which limits the transient time during phase-changing events, and which provides a means for adjusting the phase of the drive signal.

    摘要翻译: 基于SLM的投影显示系统(10)对用于传送到空间光调制器(SLM)(13c)的视频数据进行采样和处理,并使用色轮(14a)对SLM生成的图像进行着色。 帧存储器(13b)向SLM(13c)提供数据并被管理,使得如果输入视频信号的相位改变,则色轮位置和可用于SLM(13c)的数据之间的期望的相位关系可以 保持。 此外,电动机控制单元(15a)使用水平同步信号来生成用于色轮电动机(16a)的驱动信号,这限制了相变事件期间的瞬时时间,并且其提供了用于调整 驱动信号。

    Color phase control for projection display using spatial light modulator
    9.
    发明授权
    Color phase control for projection display using spatial light modulator 失效
    使用空间光调制器进行投影显示的彩色相位控制

    公开(公告)号:US5657099A

    公开(公告)日:1997-08-12

    申请号:US510027

    申请日:1995-08-01

    IPC分类号: H04N9/31 H04N9/12

    摘要: A SLM-based projection display system (10) samples and processes video data for delivery to a spatial light modulator (SLM) (13c), and uses a color wheel (14a) to color the SLM-generated images. A frame memory (13b) provides data to the SLM (13c) and is managed so that, if the phase of the incoming video signal changes, a desired phase relationship between the color wheel position and the data available to the SLM (13c) can be maintained. Also, a motor control unit (15a) uses a horizontal sync signal to generate a drive signal for the color wheel motor (16a), which limits the transient time during phase-changing events, and which provides a means for adjusting the phase of the drive signal.

    摘要翻译: 基于SLM的投影显示系统(10)对用于传送到空间光调制器(SLM)(13c)的视频数据进行采样和处理,并使用色轮(14a)对SLM生成的图像进行着色。 帧存储器(13b)向SLM(13c)提供数据并被管理,使得如果输入视频信号的相位改变,则色轮位置和可用于SLM(13c)的数据之间的期望的相位关系可以 保持。 此外,电动机控制单元(15a)使用水平同步信号来生成用于色轮电动机(16a)的驱动信号,这限制了相变事件期间的瞬时时间,并且其提供了用于调整 驱动信号。

    Brightness and contrast control for a digital pulse-width modulated display system
    10.
    发明授权
    Brightness and contrast control for a digital pulse-width modulated display system 失效
    数字脉宽调制显示系统的亮度和对比度控制

    公开(公告)号:US06362835B1

    公开(公告)日:2002-03-26

    申请号:US08156541

    申请日:1993-11-23

    IPC分类号: G09G300

    摘要: A method and system for adjusting the brightness and contrast of a digital pulse-width modulated display without scaling the input image data. Brightness is adjusted by changing the duty cycle of a displayed pixel either by altering the bit display durations, or by turning the pixel on during blanking periods 36. The contrast ratio may be altered by changing the display duration of at least one of the MSBs differently than the display duration of at least one of the LSBs. Contrast may be increased by extending the MSB display periods 50 and shortening the LSB display periods 52. Contrast may be decreased by shortening the MSB display periods 56 and extending the LSB display periods 58. The color tint of the displayed image may be altered by individually changing the brightness of the constituent colors.

    摘要翻译: 一种用于调节数字脉冲宽度调制显示器的亮度和对比度而不缩放输入图像数据的方法和系统。 通过改变比特显示持续时间来改变所显示的像素的占空比,或者通过在消隐期​​间36期间转动像素来调节亮度。可以通过改变至少一个MSB的显示持续时间来改变对比度 比LSB中的至少一个的显示持续时间长。 可以通过延长MSB显示周期50并缩短LSB显示周期52来增加对比度。可以通过缩短MSB显示周期56并延长LSB显示周期58来减小对比度。可以通过单独地改变显示图像的色调 改变组成颜色的亮度。