Composite video color signal generation from digital color signals
    31.
    发明授权
    Composite video color signal generation from digital color signals 失效
    从数字彩色信号生成复合视频彩色信号

    公开(公告)号:US4442428A

    公开(公告)日:1984-04-10

    申请号:US292074

    申请日:1981-08-12

    CPC classification number: G09G1/285

    Abstract: A 3.58 MHz subcarrier signal and a 14.318 MHz clock signal are applied to three flipflops (50, 52 and 54) in such a manner that there appears on the output terminals (Q and Q) of the latches individual phase-shifted subcarriers having relative phases of 0.degree., 180.degree., 90.degree., 270.degree., 135.degree. and 315.degree. , respectively, representing the colors yellow, blue, red, cyan, magenta and green, respectively. Computer-generated digital color signals (+BLUE, +GREEN, +RED) are applied to the switching inputs (A, B, C) of a multiplexer (56) in order selectively to switch to the output of the multiplexer individual ones of the phase-shifted subcarriers in accordance with the code represented by the digital color signals. The individual subcarriers are combined in a summing circuit (62, 64) with television synchronizing and blanking pulses to produce a composite video color signal which is directly compatible with a conventional composite monitor and, after R.F. modulation, with a conventional television receiver. Brighter versions of the colors are obtained by increasing the direct current level (+INTENSITY) at the summing circuit.

    Abstract translation: 一个3.58MHz的子载波信号和一个14.318MHz的时钟信号以这样一种方式施加到三个触发器(50,52和54)上,使得存在锁存器的输出端子(Q和& upbar&Q),各个相移子载波具有相对的 分别为0°,180°±20°,90°,270°,135°和315°的相,分别表示黄色,蓝色,红色,青色,品红色和绿色的颜色。 计算机生成的数字彩色信号(+ BLUE,+ GREEN,+ RED)被施加到多路复用器(56)的切换输入(A,B,C),以便有选择地切换到复用器的输出 根据由数字彩色信号表示的码相移子载波。 各个子载波在加法电路(62,64)中与电视同步和消隐脉冲组合以产生与常规复合监视器直接兼容的复合视频彩色信号,并且在R.F.之后。 用传统的电视接收机进行调制。 通过增加求和电路上的直流电平(+ INTENSITY)获得更明亮的颜色。

    Account-specific encryption key
    33.
    发明授权
    Account-specific encryption key 有权
    特定于帐户的加密密钥

    公开(公告)号:US09414031B2

    公开(公告)日:2016-08-09

    申请号:US12324634

    申请日:2008-11-26

    Abstract: One embodiment takes the form of a method and apparatus for creating a customer-specific encryption key for encrypting digital information. The encryption key may be based on a customer number and may be associated with several devices such that the devices may encrypt and decrypt the digital information. Because each device may have the same encryption key, the encrypted data may be encrypted by a first device, transferred from the first device to a second device and decrypted and read by the second device. Thus, encrypted digital information may be shared between devices that generate a customer-specific encryption key from a common customer number. In one embodiment, the customer-specific encryption key may be utilized by a set-top box of a television system to encrypt and decrypt a digitally recorded television program.

    Abstract translation: 一个实施例采用用于创建用于加密数字信息的客户专用加密密钥的方法和装置的形式。 加密密钥可以基于客户号码并且可以与若干设备相关联,使得设备可以对数字信息进行加密和解密。 因为每个设备可以具有相同的加密密钥,所以加密数据可以由第一设备加密,从第一设备传送到第二设备,并由第二设备解密和读取。 因此,加密的数字信息可以在从公共客户号码生成客户特定加密密钥的设备之间共享。 在一个实施例中,客户特定的加密密钥可以由电视机的机顶盒利用来加密和解密数字记录的电视节目。

    Systems and methods for providing information in response to electronic program guide usage
    38.
    发明授权
    Systems and methods for providing information in response to electronic program guide usage 有权
    提供信息以响应电子节目指南使用的系统和方法

    公开(公告)号:US08745663B2

    公开(公告)日:2014-06-03

    申请号:US12023816

    申请日:2008-01-31

    Inventor: David A. Kummer

    Abstract: Systems and methods provide information to a user in response to usage of an electronic program guide provided by an appliance coupled to a display. Usage of the electronic program guide is observed from within the appliance, and any triggering events in the usage of the electronic program guide are identified. An instruction is then executed in response to the triggering event to thereby provide the information on the display. Information provided may include a graphic display, a video clip, a highlight of any portion of the electronic program guide, or other information as appropriate.

    Abstract translation: 响应于由耦合到显示器的设备提供的电子节目指南的使用,系统和方法向用户提供信息。 从电器内部观察电子节目指南的使用,并且识别使用电子节目指南中的任何触发事件。 然后响应于触发事件执行指令,从而在显示器上提供信息。 提供的信息可以包括图形显示,视频剪辑,电子节目指南的任何部分的亮点或适当的其他信息。

    System and method for dynamically adjusting recording parameters
    39.
    发明授权
    System and method for dynamically adjusting recording parameters 有权
    动态调整录像参数的系统和方法

    公开(公告)号:US08660412B2

    公开(公告)日:2014-02-25

    申请号:US13592976

    申请日:2012-08-23

    Abstract: Content receivers may be configured to simultaneously record multiple instances of content for multiple programming channels based on content provider instructions. Systems and methods utilize the content receivers to dynamically adjust recording parameters to account for instances of content with a start time and/or end time that falls outside of predefined recording parameters. The dynamically adjusted recording parameters may adjust the number of channels recorded and/or instances of content recorded. The content receiver may compare programming information received at a processing unit with predefined recording parameters and may dynamically adjust the recording parameters based on the comparison. The content receiver may generate on screen display content to include information on the dynamically adjusted recording parameters and may transmit the on screen display content to a content display device for notifying the user of the dynamically adjusted recoding parameters.

    Abstract translation: 内容接收器可以被配置为基于内容提供商指令同时记录用于多个节目频道的多个内容实例。 系统和方法利用内容接收器来动态地调整记录参数以考虑具有超出预定记录参数的开始时间和/或结束时间的内容的实例。 动态调整的记录参数可以调节记录的频道的数量和/或记录的内容的实例。 内容接收器可以将在处理单元处接收到的节目信息与预定义的记录参数进行比较,并且可以基于比较来动态地调整记录参数。 内容接收器可以生成屏幕显示内容以包括关于动态调整的记录参数的信息,并且可以将内容显示设备发送到内容显示设备,以通知用户动态调整的重新编码参数。

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