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    • 1. 发明授权
    • Transmitter
    • 发射机
    • US08281356B2
    • 2012-10-02
    • US11666613
    • 2005-10-31
    • Michihiro OhnoMasafumi TakahashiKatsuo Doi
    • Michihiro OhnoMasafumi TakahashiKatsuo Doi
    • H04N7/173
    • H04L1/0019H04L1/0002H04L1/0009H04L47/10Y02D50/10
    • A source device 10 transmits streaming data. In a packet receiver 22 of a sync device 20, statistical data acquirer 23 calculates statistical data such as one-way delay time, packet loss ratio, reception rate and the like from the received streaming data and transmits it to the source device. The statistical information received by source device 20 is extracted by a packet receiver 15 and input to a channel band estimator 16. The channel band estimator 16 gives encoder 11 instructions to provide optimal encoding based on the transmission delay. Upon this, the transmission delay is calculated by assuming the minimum value of the communication delay from the start of transmission as zero. Control is performed by determining the delay time and packet loss ratio in data transmission and considering, based on these, the channel quality and bandwidth margin, so as to provide the optimal transmission bit rate or encoding rate.
    • 源装置10发送流数据。 在同步装置20的分组接收机22中,统计数据获取部23从接收到的流数据中计算单向延迟时间,分组丢失率,接收速率等统计数据,并将其发送到源设备。 由源设备20接收的统计信息由分组接收器15提取并输入到信道频带估计器16.信道频带估计器16给编码器11指令提供基于传输延迟的最佳编码。 这样,通过将从发送开始的通信延迟的最小值设为零来计算传输延迟。 通过确定数据传输中的延迟时间和丢包率来进行控制,并且基于这些,考虑信道质量和带宽裕度,从而提供最佳传输比特率或编码率。
    • 2. 发明申请
    • Transmitter, Receiver And Communication System
    • 发射机,接收机和通信系统
    • US20080095247A1
    • 2008-04-24
    • US11666613
    • 2005-10-31
    • Michihiro OhnoMasafumi TakahashiKatsuo Doi
    • Michihiro OhnoMasafumi TakahashiKatsuo Doi
    • H04N11/04
    • H04L1/0019H04L1/0002H04L1/0009H04L47/10Y02D50/10
    • A source device 10 transmits streaming data. In a packet receiver 22 of a sync device 20, statistical data acquirer 23 calculates statistical data such as one-way delay time, packet loss ratio, reception rate and the like from the received streaming data and transmits it to the source device. The statistical information received by source device 20 is extracted by a packet receiver 15 and input to a channel band estimator 16. The channel band estimator 16 gives encoder 11 instructions to provide optimal encoding based on the transmission delay. Upon this, the transmission delay is calculated by assuming the minimum value of the communication delay from the start of transmission as zero. Control is performed by determining the delay time and packet loss ratio in data transmission and considering, based on these, the channel quality and bandwidth margin, so as to provide the optimal transmission bit rate or encoding rate.
    • 源装置10发送流数据。 在同步装置20的分组接收机22中,统计数据获取部23从接收到的流数据中计算单向延迟时间,分组丢失率,接收速率等统计数据,将其发送到源装置。 由源设备20接收的统计信息由分组接收机15提取并输入到信道频带估计器16。 信道频带估计器16给编码器11指令提供基于传输延迟的最佳编码。 这样,通过将从发送开始的通信延迟的最小值设为零来计算传输延迟。 通过确定数据传输中的延迟时间和丢包率来进行控制,并且基于这些,考虑信道质量和带宽裕度,从而提供最佳传输比特率或编码率。