Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use
    21.
    发明授权
    Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use 有权
    在频率重复使用的光束卫星系统中局部填充空隙的装置和方法

    公开(公告)号:US07142809B1

    公开(公告)日:2006-11-28

    申请号:US10889489

    申请日:2004-07-12

    Applicant: John P. Godwin

    Inventor: John P. Godwin

    Abstract: Systems and methods for transmitting and receiving diverse signals across regions using a minimum of frequency capacity and maintaining compatibility with the heritage system. A system of the invention comprises at least one broadcast transmitter for transmitting a broadcast signal in a first frequency band to a receiver, at least one gapfiller transmitter for transmitting a gapfiller signal in a second frequency band to the receiver and at least one set of reuse transmitters for transmitting a plurality of spotbeam signals in the first frequency band to define coverage regions and at least one coverage gap where the spotbeam signals are not transmitted. A method of the invention comprises receiving a first signal, receiving a second signal, generating a first intermediate frequency (IF) signal from the first signal, generating a second IF signal from the second signal, filtering the second IF signal to produce a filtered second IF signal and combining the filtered second IF signal and the first IF signal.

    Abstract translation: 使用最小的频率容量在多个区域之间发送和接收各种信号的系统和方法,并保持与遗产系统的兼容性。 本发明的系统包括至少一个用于将第一频带的广播信号发射到接收机的广播发射机,至少一个间隙填充发射机,用于将第二频带中的间隙填充信号发射到接收机,以及至少一组重用 发送器,用于在第一频带中发送多个点波束信号,以限定覆盖区域和至少一个不发射光束信号的覆盖间隙。 本发明的方法包括接收第一信号,接收第二信号,从第一信号产生第一中频(IF)信号,从第二信号产生第二IF信号,对第二IF信号进行滤波以产生滤波后的第二信号 IF信号并组合滤波的第二IF信号和第一IF信号。

    Method and apparatus for audio-visual cues improving perceived acquisition time
    22.
    发明授权
    Method and apparatus for audio-visual cues improving perceived acquisition time 有权
    提高感知获取时间的视听线索的方法和装置

    公开(公告)号:US06473137B1

    公开(公告)日:2002-10-29

    申请号:US09606381

    申请日:2000-06-28

    CPC classification number: H04N21/4384 H04N5/4401 H04N5/505 H04N21/4263

    Abstract: A method and apparatus for perceptibly masking acquisition time in a digital broadcast system transmitting programs on multiple channels is incorporated in a receiver for the information signal transmission system. The apparatus and the method generate a reduced time response, independent of the acquisition time for complete video images, and provide an output for portraying a masking display from the receiver before the acquisition time has expired. A generator and the output display are easily employed with known video transmission systems by suing a microcontroller switch to select channels and retrieve audio or visual cues in response to an output response less than that necessary for communicating the entire program image.

    Abstract translation: 在用于信息信号传输系统的接收机中并入用于在多个信道上传送节目的数字广播系统中可感知地屏蔽采集时间的方法和装置。 该装置和方法与完整视频图像的获取时间无关地产生降低的时间响应,并且在获取时间到期之前提供用于从接收器描绘掩蔽显示的输出。 发射器和输出显示器通过起诉微控制器开关来响应于小于传送整个节目图像所需的输出响应的选择声道和检索音频或视觉提示而容易地与已知的视频传输系统一起使用。

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