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    • 83. 发明授权
    • Optical clock rate negotiation for supporting asymmetric clock rates for visible light communication
    • 用于支持可见光通信的非对称时钟速率的光时钟速率协商
    • US08855496B2
    • 2014-10-07
    • US12975225
    • 2010-12-21
    • Sridhar RajagopalEran PisekFarooq KhanYing Li
    • Sridhar RajagopalEran PisekFarooq KhanYing Li
    • H04B10/00H04B10/114H04B10/116
    • H04B10/116H04B10/1149
    • A method and apparatus conduct an optical clock rate negotiation to support asymmetric clock rates for visible light communication (VLC) in a VLC device. A first frame that includes a receiver clock rate supported by a first VLC device is transmitted at a predetermined clock rate. A response frame that includes a receiver clock rate supported by a second VLC device is received from the second VLC device. A transmission clock rate of the first VLC device is selected based on the response frame from the second VLC device. Subsequent frames for data communication are transmitted to the second VLC device at the selected transmission clock rate of the first device. Alternatively, when conducting optical clock negotiation in the PHY layer, multiple clock rates are supported within a single frame.
    • 一种方法和装置进行光时钟速率协商以支持VLC设备中可见光通信(VLC)的非对称时钟速率。 以预定的时钟速率发送包括由第一VLC设备支持的接收机时钟速率的第一帧。 从第二VLC设备接收包括由第二VLC设备支持的接收机时钟速率的响应帧。 基于来自第二VLC设备的响应帧来选择第一VLC设备的传输时钟速率。 用于数据通信的后续帧以所选择的第一设备的传输时钟速率发送到第二VLC设备。 或者,当在PHY层中进行光时钟协商时,在单个帧内支持多个时钟速率。
    • 85. 发明授权
    • Method and apparatus of implementing an internet protocol signaling concentrator
    • 实施互联网协议信令集中器的方法和装置
    • US08750093B2
    • 2014-06-10
    • US13012976
    • 2011-01-25
    • Maurice Gerard D'SouzaHyunyung ChaMarc SissomYing Li
    • Maurice Gerard D'SouzaHyunyung ChaMarc SissomYing Li
    • H04J1/16H04W4/00
    • H04W24/04
    • Communication between base station controllers and a mobile switching center may be provided by a consolidating device that operates between the BSCs and the MSCs. One example method of operation may include initiating an active process on an active network device and a standby process on a redundant network device configured as a backup to the active network device. Other operations may include receiving a data message from at least one base station controller on the active network device, and detecting a communication failure by at least one of the active process and the standby process, in response to the received data message. Other operations may include automatically configuring the redundant network device to become the active network device.
    • 基站控制器和移动交换中心之间的通信可以由在BSC和MSC之间操作的合并设备提供。 一种示例性的操作方法可以包括在配置为对活动网络设备的备份的冗余网络设备上启动活动网络设备上的活动进程和备用进程。 其他操作可以包括从活动网络设备上的至少一个基站控制器接收数据消息,以及响应于所接收的数据消息,通过至少一个活动进程和备用进程来检测通信故障。 其他操作可以包括自动配置冗余网络设备以成为活动网络设备。
    • 86. 发明申请
    • ADAPTIVE SINGLE-FIELD/DUAL-FIELD VIDEO ENCODING
    • 自适应单场/双场视频编码
    • US20140153640A1
    • 2014-06-05
    • US13705422
    • 2012-12-05
    • Xu Gang ZhaoYing Li
    • Xu Gang ZhaoYing Li
    • H04N7/26
    • H04N19/112H04N19/124H04N19/149H04N19/172
    • A video processing device includes an interface to receive an input video stream and an interface to provide an encoded video stream. The input video stream includes a sequence of frames. Each frame comprises two fields. The video processing device further includes an encoder to encode the input video stream to generate the encoded video stream. The encoder is to dynamically switch between a first encoding mode and a second encoding mode responsive to a variable quantization parameter. In the first encoding mode the encoder is to encode both fields or the complete frame of a corresponding frame of the sequence. In the second encoding mode the encoder is to encode only one field of the two fields of a corresponding frame of the sequence. This approach can achieve a specified low bit rate with reduced quantization effects while keeping the horizontal resolution unchanged.
    • 视频处理设备包括接收输入视频流的接口和提供编码视频流的接口。 输入视频流包括一系列帧。 每个帧包括两个字段。 视频处理设备还包括编码器以对输入视频流进行编码以生成编码视频流。 编码器将响应于可变量化参数在第一编码模式和第二编码模式之间动态切换。 在第一编码模式中,编码器将对序列的相应帧的两个场或完整帧进行编码。 在第二编码模式中,编码器仅对序列的相应帧的两个场的一个字段进行编码。 这种方法可以在保持水平分辨率不变的情况下实现具有降低的量化效应的指定的低比特率。