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    System for controlling updates of extended data services (EDS) data
    1.
    发明授权
    System for controlling updates of extended data services (EDS) data 失效
    用于控制扩展数据服务（EDS）数据更新的系统

    公开(公告)号：US5617146A

    公开(公告)日：1997-04-01

    申请号：US450955

    申请日：1995-05-23

    申请人： David J. Duffield ,  Michael D. Landis ,  Gabriel A. Edde

    发明人： David J. Duffield ,  Michael D. Landis ,  Gabriel A. Edde

    IPC分类号： G04G5/00 ,  G04R20/16 ,  G04R20/18 ,  H04N5/445 ,  H04N5/92 ,  H04N7/06 ,  H04N7/088 ,  H04N7/08

    CPC分类号： H04N21/485 ,  G04R20/16 ,  G04R20/18 ,  H04N21/4884 ,  H04N5/44513 ,  H04N5/9208 ,  H04N7/06 ,  H04N7/088 ,  H04N7/0882 ,  H04N5/44504

    摘要： A system for processing a television signal including a data component, such as extended data services data, includes a decoder for processing the data component to provide data representing time information. A control device responds to the data for modifying time information, e.g., time of day, that is maintained in the system. The time information decoded from the video signal is compared to the time information maintained in the system to determine a time difference. If the time difference is in a predetermined range, the time difference indicates that the time information from the television signal is invalid. The control device responds to the time difference being in the predetermined range by preventing modification of the time information maintained in the system. A user may provide an input via a device such as a remote control to control the manner in which the control device responds to the time difference.

    摘要翻译： 用于处理包括诸如扩展数据服务数据的数据分量的电视信号的系统包括用于处理数据分量以提供表示时间信息的数据的解码器。 控制装置响应数据来修改在系统中维护的时间信息，例如时间。 从视频信号解码的时间信息与系统中维护的时间信息进行比较，以确定时间差。 如果时间差在预定范围内，则时间差指示来自电视信号的时间信息无效。 控制装置通过防止对系统中保持的时间信息的修改来响应在预定范围内的时间差。 用户可以经由诸如遥控器的设备提供输入，以控制控制设备对时差的响应方式。

    Programmable picture-outside-picture display
    2.
    发明授权
    Programmable picture-outside-picture display 失效
    可编程画面外画面显示

    公开(公告)号：US5398074A

    公开(公告)日：1995-03-14

    申请号：US272960

    申请日：1994-07-11

    申请人： David J. Duffield ,  Gene H. Johnson

    发明人： David J. Duffield ,  Gene H. Johnson

    IPC分类号： H04N5/45

    CPC分类号： H04N5/45 ,  H04N21/4316 ,  H04N21/482 ,  H04N21/4858 ,  H04N5/50

    摘要： A wide screen television apparatus comprises a memory for storing a set of video sources, a circuit for tuning to the set of video sources and a video signal processor. The video signal processor is coupled to the memory and to the tuning circuit, and develops a wide screen multiple picture display by selecting any one of the set of video sources for generating a main picture of the display and by selecting all of the set of video sources for generating supplemental pictures of the display, for example as three POP's. A remote control can be activated for choosing the set of video sources and for selecting the main picture from among the supplemental pictures. The multiple picture display is modified in a manner which identifies which one of the supplemental pictures corresponds to the main picture. An on-screen display indicator can be generated for the supplemental picture corresponding to the main picture. In an alternative, the supplemental picture corresponding to the main picture can be repositioned on the display. In another alternative, the supplemental picture corresponding to the main picture can be modified in appearance.

    摘要翻译： 宽屏幕电视装置包括用于存储一组视频源的存储器，用于调谐到视频源集合的电路和视频信号处理器。 视频信号处理器耦合到存储器和调谐电路，并且通过选择用于产生显示器的主图像的视频源集合中的任何一个并且通过选择视频集合来开发宽屏幕多画面显示 用于生成显示器的补充图片的源，例如作为三个POP。 可以激活遥控器来选择一组视频源并从辅助图像中选择主图像。 以识别哪一个补充图片对应于主图像的方式修改多个图像显示。 可以为对应于主图像的补充图像生成屏幕显示指示符。 在替代方案中，可以在显示器上重新定位对应于主图像的补充图片。 在另一个替代方案中，可以在外观上修改对应于主图片的补充图片。

    Side by side picture display with reduced cropping
    3.
    发明授权
    Side by side picture display with reduced cropping 失效
    并排图像显示减少裁剪

    公开(公告)号：US5363143A

    公开(公告)日：1994-11-08

    申请号：US194776

    申请日：1994-02-10

    申请人： David J. Duffield

    发明人： David J. Duffield

    IPC分类号： G09G5/00 ,  H04N3/22 ,  H04N3/27 ,  H04N5/45 ,  H04N5/46 ,  H04N7/01 ,  H04N5/262

    CPC分类号： H04N7/0122 ,  H04N5/45

    摘要： A wide screen television apparatus comprises a video display having a first vertical display height and a first format display ratio. A first video processor combines video signals representative of at least two pictures for side by side display of the pictures on the video display, each of the pictures having a second format display ratio smaller than approximately 4:3. A vertical height control decreases the vertical display height smaller than the first vertical display height during the side by side display of said pictures, each of the side by side pictures thereby having a third format display between the .first and second format display ratios. The first, or a second, video processor horizontally compresses each of the pictures to correct for any image aspect ratio distortion due to decreasing the vertical deflection height. In an illustrated embodiment, the first format display ratio is about 16:9, the second format display ratio is about 8:9 and the third format display ratio is about 8:7.

    摘要翻译： 一种宽屏幕电视设备包括具有第一垂直显示高度和第一格式显示比率的视频显示器。 第一视频处理器组合表示至少两个图像的视频信号，用于在视频显示器上并排显示图像，每个图像具有小于约4:3的第二格式显示比。 在所述图像的并排显示期间，垂直高度控制减小垂直显示高度小于第一垂直显示高度，每个并排图像由此在第一和第二格式显示比之间具有第三格式显示。 第一或第二视频处理器水平地压缩每个图像，以校正由于垂直偏转高度的降低导致的任何图像宽高比失真。 在图示的实施例中，第一格式显示比为约16:9，第二格式显示比为约8:9，第三格式显示比为约8:7。

    Automatic channel sampling picture-in-picture circuitry
    4.
    发明授权
    Automatic channel sampling picture-in-picture circuitry 失效
    自动通道采样图像电路

    公开(公告)号：US5194954A

    公开(公告)日：1993-03-16

    申请号：US547089

    申请日：1990-06-29

    申请人： David J. Duffield

    发明人： David J. Duffield

    IPC分类号： H04N5/272 ,  H04N5/278 ,  H04N5/45

    CPC分类号： H04N5/45 ,  H04N21/4314 ,  H04N21/4432 ,  H04N21/4532 ,  H04N21/4755 ,  H04N21/8153

    摘要： An automatic channel sampler system, including a television signal tuner, displays an array of inset pictures on a display screen each time the receiver is turned on. Each inset picture is a still video picture (i.e., freeze-frame) selected by tuning each of the channels in a scan list of channels. Automatic channel sampling is initiated in response to the development of operating power, and is performed while the picture tube is dark during the time in which the picture tube is warming up. A separate user-enterable scan list may be provided for either the automatic channel sampling function, a manually initiated channel sampling function, or both. The separate scan list may be programmed to contain only those channels which the viewer regularly watches, and would have the triple advantages of excluding the sampling of channels carrying programming which is not of interest to the viewer, presenting the sampled images in whatever order is desired by the user, and shortening the time necessary to complete the channel sampling function by eliminating the sampling of the undesired channels.

    摘要翻译： 包括电视信号调谐器的自动信道采样器系统在每次接收机被接通时在显示屏幕上显示插入图像的阵列。 每个插图是通过调整频道扫描列表中的每个频道来选择的静止视频图像（即，冻结帧）。 响应于工作电源的发展而启动自动通道采样，并且在显像管正在升温的时间期间在显像管为暗时执行。 可以为自动信道采样功能，手动启动的信道采样功能或两者提供单独的用户可输入扫描列表。 单独的扫描列表可以被编程为仅包含观看者定期观看的那些频道，并且将具有排除对观看者不感兴趣的携带节目的频道的采样的三重优点，以期望的顺序呈现采样图像 并且通过消除不期望的信道的采样来缩短完成信道采样功能所需的时间。

    Signal swap apparatus for a television receiver having an HDTV main picture signal processor and an NTSC Pix-in-Pix signal processor
    6.
    发明授权
    Signal swap apparatus for a television receiver having an HDTV main picture signal processor and an NTSC Pix-in-Pix signal processor 失效
    具有HDTV主图像信号处理器和NTSC Pix-in-Pix信号处理器的电视接收机的信号交换装置

    公开(公告)号：US5453796A

    公开(公告)日：1995-09-26

    申请号：US266902

    申请日：1994-06-28

    申请人： David J. Duffield ,  Robert D. Altmanshofer

    发明人： David J. Duffield ,  Robert D. Altmanshofer

    IPC分类号： H04N5/45 ,  H04N5/46 ,  H04N5/50

    CPC分类号： H04N5/46 ,  H04N21/4263 ,  H04N21/4316 ,  H04N21/482 ,  H04N21/4858 ,  H04N5/45 ,  H04N5/50

    摘要： A television receiver system having PIP capability includes two NTSC tuners and signal processing arrangements, and an HDTV tuner and signal processing arrangement. In order to accomplish a CHANNEL SWAP function, a controller searches a table for data indicative of pairing of NTSC channels and HDTV channels, the NTSC channel associated with the main channel HDTV source is tuned by the PIP NTSC tuner, and the HDTV channel associated with the PIP NTSC source is tuned by the HDTV tuner. If the inset image has no paired HDTV channel then the second NTSC tuner is controlled to select the channel formerly tuned by the PIP NTSC tuner.

    摘要翻译： 具有PIP功能的电视接收机系统包括两个NTSC调谐器和信号处理装置，以及HDTV调谐器和信号处理装置。 为了完成频道切换功能，控制器在表中搜索指示NTSC频道和HDTV频道配对的数据，与主频道HDTV频道相关联的NTSC频道由PIP NTSC调谐器调谐，并且与 PIP NTSC源由HDTV调谐器调谐。 如果插入图像没有配对的HDTV频道，则控制第二NTSC调谐器以选择以前由PIP NTSC调谐器调谐的频道。

    Video display having progressively dimmed video images and constant brightness auxiliary images
    7.
    发明授权
    Video display having progressively dimmed video images and constant brightness auxiliary images 失效
    具有逐渐变暗的视频图像和恒亮亮度辅助图像的视频显示

    公开(公告)号：US5386247A

    公开(公告)日：1995-01-31

    申请号：US71650

    申请日：1993-06-02

    申请人： Kirk E. Shafer ,  Aaron H. Dinwiddie ,  David J. Duffield

    发明人： Kirk E. Shafer ,  Aaron H. Dinwiddie ,  David J. Duffield

    IPC分类号： H04N5/445 ,  H04N5/57 ,  H04N5/63 ,  H04N21/485 ,  H04N5/44

    CPC分类号： H04N21/485 ,  H04N5/44513 ,  H04N5/57 ,  H04N5/63

    摘要： An on-screen display generator for use in an image display system is disclosed. The on-screen display generator includes a main image signal source, and an auxiliary image signal source which includes a controller for varying the perceived brightness of the image represented by the auxiliary image signal in response to a first control signal. A video signal processor, coupled to the main image signal source and the auxiliary image signal source, includes circuitry for combining the main and auxiliary image signals to produce a combined image signal. The video signal processor further includes a controller for varying the perceived brightness of the image represented by the combined image signal in response to a second control signal. A control signal generator generates the first and the second control signals in such a manner that the perceived brightness of the auxiliary image signal remains substantially constant when the perceived brightness of the main image is varied. This on-screen display generator is disclosed as being embodied in a sleep timer in a television receiver.

    摘要翻译： 公开了一种用于图像显示系统的屏幕显示发生器。 屏幕显示发生器包括主图像信号源和辅助图像信号源，其包括用于响应于第一控制信号改变由辅助图像信号表示的图像的感知亮度的控制器。 耦合到主图像信号源和辅助图像信号源的视频信号处理器包括用于组合主图像信号和辅助图像信号以产生组合图像信号的电路。 视频信号处理器还包括控制器，用于响应于第二控制信号改变由组合图像信号表示的图像的感知亮度。 控制信号发生器产生第一和第二控制信号，使得当主图像的感知亮度变化时，辅助图像信号的感知亮度保持基本恒定。 该屏幕显示生成器被公开为体现在电视接收机中的睡眠定时器中。

    Inset picture centering in a pix-in-pix system
    8.
    发明授权
    Inset picture centering in a pix-in-pix system 失效
    嵌入图像系统中的图像

    公开(公告)号：US5031044A

    公开(公告)日：1991-07-09

    申请号：US341123

    申请日：1989-04-20

    申请人： Barth A. Canfield ,  David J. Duffield

    发明人： Barth A. Canfield ,  David J. Duffield

    IPC分类号： H04N5/262 ,  H04N5/45

    CPC分类号： H04N5/45 ,  H04N21/4221 ,  H04N21/4316 ,  H04N21/440263 ,  H04N21/4858

    摘要： A PIP system stores data indicative of the location of the center point of an inset picture with respect to a display screen center point in a memory area of a first size. The inset image data is read out of the memory area beginning with the data stored in a memory location known as the "read address". When a ZOOM-IN or ZOOM-OUT command is received, data representing a new video image of a different size is stored for display in an unused memory area of a different size, a new inset center point is computed, and a new read address is computed, so that the displayed centers of the new inset area of a different size, and the old inset area are substantially the same.

    摘要翻译： PIP系统将关于插图图像的中心点的位置的数据存储在第一尺寸的存储区域中的显示屏中心点。 插入图像数据从存储在被称为“读取地址”的存储器位置中的数据开始的存储区域中读出。 当接收到ZOOM-IN或ZOOM-OUT命令时，存储表示不同大小的新视频图像的数据以显示在不同尺寸的未使用的存储器区域中，计算新的插入中心点，并且新的读取地址 被计算，使得不同大小的新插入区域的显示中心和旧插入区域基本相同。