Auxiliary signal to assist conversion of a letterbox standard aspect
ratio television signal to a wide aspect ratio signal
    1.
    发明授权
    Auxiliary signal to assist conversion of a letterbox standard aspect ratio television signal to a wide aspect ratio signal 失效
    辅助信号,以协助将信箱标准宽高比电视信号转换为宽宽比信号

    公开(公告)号:US5268751A

    公开(公告)日:1993-12-07

    申请号:US868339

    申请日:1992-04-15

    CPC分类号: H04N11/167 H04N7/007

    摘要: In the process of generating a compatible 4:3 letterbox format television signal, a wide aspect ration 16:9 progressive scan television signal is vertically transcoded from 575 to 431 image lines, converted to line interlaced form and horizontally compressed. A vertically transcoded interlaced luminance component is converted back to progressive scan form via interpolation, and subtracted from a vertically transcoded original progressive scan luminance component to produce a difference (helper) signal. The difference signal is time compressed and multiplexed into upper and lower edge bar regions of the letterbox format. The compatible letterbox signal also is encoded with additional information including vertical high frequency information and horizontal high frequency information separated during the transcoding and compression processes, respectively. The encoding includes modulating the color subcarrier frequency with luminance information, and intraframe averaging. The difference signal and encoded additional information are used by a 16:9 widescreen receiver to produce a 16:9 progressive scan image display with the transcoded number of lines and good resolution.

    摘要翻译: 在生成兼容的4:3信箱格式的电视信号的过程中,宽屏幕16:9逐行扫描电视信号从575垂直转码到431个图像线,转换成行隔行格式并水平压缩。 垂直代码转换的隔行扫描亮度分量通过内插转换回逐行扫描形式,并从垂直转码的原始逐行扫描亮度分量中减去以产生差(辅助信号)。 差分信号被时间压缩并复用到信箱格式的上边缘和下边缘区域。 兼容的信箱信号还用附加信息进行编码,包括分别在代码转换和压缩处理期间分离的垂直高频信息和水平高频信息。 该编码包括利用亮度信息调制彩色副载波频率和帧内平均。 差分信号和编码的附加信息由16:9宽屏接收机使用以产生具有代码转换数目的线和良好分辨率的16:9逐行扫描图像显示。

    IEEE 1394 cable connector with short circuit switch
    2.
    发明授权
    IEEE 1394 cable connector with short circuit switch 有权
    具有短路开关的IEEE 1394电缆连接器

    公开(公告)号:US06647537B1

    公开(公告)日:2003-11-11

    申请号:US09980353

    申请日:2001-11-29

    IPC分类号: G06F1750

    CPC分类号: H04Q11/0435 H01R2107/00

    摘要: In case of a loss of power supply a short-circuit between the corresponding pins of the two IEEE 1394 connectors of a device is established. Preferably this will be achieved by a relay controlling switches. If power is available, the relay is powered and the switches are open. The device then behaves like without this extension. If power is lost, the relay is not powered any longer, and the switches are closed. By this way, the device simply disappears from the cluster, which will then be reorganised according to IEEE 1394 rules.

    摘要翻译: 在电源丢失的情况下,建立设备的两个IEEE 1394连接器的相应引脚之间的短路。 优选地,这将通过继电器控制开关实现。 如果电源可用,继电器通电并且开关打开。 然后,该设备的行为就像没有这个扩展。 如果断电,继电器不再供电,并且开关闭合。 通过这种方式,设备将从集群中消失,然后根据IEEE 1394规则进行重组。

    Method and apparatus for testing and checking the criteria of a key
signal decoder from a chromakey mixer
    3.
    发明授权
    Method and apparatus for testing and checking the criteria of a key signal decoder from a chromakey mixer 失效
    用于从色差混合器测试和检查键信号解码器的标准的方法和装置

    公开(公告)号:US4949165A

    公开(公告)日:1990-08-14

    申请号:US154913

    申请日:1988-02-11

    IPC分类号: H04N9/75 H04N17/02

    CPC分类号: H04N9/75 H04N17/02

    摘要: A test pattern generator provides a test pattern signal timed for insertion in the foreground signal of a chromakey mixer to occupy the area of particular shape in any desired part of a monitor screen. The test pattern signal provides a color scan signal which becomes part of the foreground signal within the test pattern area and which is also supplied to the decoder along with the foreground signal. Decoder responds to the color scan signal in the test pattern by substituting the background signal of the portion of the color scan displayed corresponding to colors to which the decoder responds by switching in the background signal. This enables determination of the exact range of response of the decoder while the mixer is operating also of observance of changing of the setting of the response of the decoder so that it can be more accurately set to the desired color range.

    摘要翻译: 测试模式发生器提供一个测试模式信号,该测试模式信号被定时以插入色差混合器的前景信号中,以占据监视器屏幕的任何所需部分中特定形状的区域。 测试图案信号提供彩色扫描信号,其成为测试图案区域内的前景信号的一部分,并且还与前景信号一起提供给解码器。 解码器通过将对应于解码器所响应的颜色显示的彩色扫描的部分的背景信号替换为背景信号,来响应测试图案中的彩色扫描信号。 这使得能够确定解码器的响应的确切范围,同时混合器也操作遵循改变解码器的响应的设置,使得可以更准确地将其设置为期望的颜色范围。

    Method and apparatus for programming a television receiver
    4.
    发明授权
    Method and apparatus for programming a television receiver 失效
    电视接收机编程方法及装置

    公开(公告)号:US06169586A

    公开(公告)日:2001-01-02

    申请号:US09090080

    申请日:1998-06-03

    申请人: Uwe Riemann

    发明人: Uwe Riemann

    IPC分类号: H04N550

    CPC分类号: H03J1/0066 H04N7/0887

    摘要: The method according to the invention is distinguished by the fact that a transmitter identifier (SK) is contained in the received channel (EK), the program locations (P) are assigned once to the received channels (EK), and in the event of a deviation from this assignment, the microprocessor (&mgr;P) controls a search (SL) in order that the desired received channel (EK) is assigned anew to the program location (P).

    摘要翻译: 根据本发明的方法的特征在于发送器标识符(SK)被包含在接收信道(EK)中,节目位置(P)被分配一次到接收信道(EK),并且在 与该分配的偏差,微处理器(muP)控制搜索(SL),以便将所需的接收信道(EK)重新分配给节目位置(P)。