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    BACKPRESSURE TECHNIQUES FOR MULTI-STREAM CAS
    3.
    发明申请
    BACKPRESSURE TECHNIQUES FOR MULTI-STREAM CAS 有权
    多级反相压缩技术

    公开(公告)号：US20150180787A1

    公开(公告)日：2015-06-25

    申请号：US14139512

    申请日：2013-12-23

    申请人： Keith Hazelet ,  Ziv Kfir ,  Christopher Thornburg ,  Barak Hermesh

    发明人： Keith Hazelet ,  Ziv Kfir ,  Christopher Thornburg ,  Barak Hermesh

    IPC分类号： H04L12/835 ,  H04L12/863 ,  H04L12/801

    CPC分类号： H04L47/30 ,  H04L47/29 ,  H04L47/621

    摘要： Techniques are disclosed for controlling data transmission in multi-stream digital systems. The techniques disclosed allow an input stream to a conditional access system to be throttled when a FIFO begins to fill up. Each data stream may have its own FIFO, which sends data to a MUX and exports its status to a backpressure rate control module. Multiple seconds worth of data may be stored in a BPRC buffer ahead of the backpressure rate control module prior to being transmitted to a MUX FIFO buffer. The backpressure rate control module may use the cached data to fill available spaces within a MUX FIFO buffer. The determination to forward a data packet may be based on the individual MUX FIFO buffer levels, the sum of all the MUX FIFO buffer levels, and/or one or more configurable threshold values. In some embodiments, individual thresholds may be assigned to each FIFO buffer.

    摘要翻译： 公开了用于控制多流数字系统中的数据传输的技术。 当FIFO开始填充时，所公开的技术允许对条件访问系统的输入流进行限制。 每个数据流可以具有其自己的FIFO，其将数据发送到MUX并将其状态导出到背压速率控制模块。 在发送到MUX FIFO缓冲器之前，可将多秒数据的数据存储在背压速率控制模块之前的BPRC缓冲器中。 背压速率控制模块可以使用缓存的数据来填充MUX FIFO缓冲器内的可用空间。 转发数据分组的确定可以基于各个MUX FIFO缓冲器级别，所有MUX FIFO缓冲器级别的总和和/或一个或多个可配置的阈值。 在一些实施例中，可以将各个阈值分配给每个FIFO缓冲器。

    ZERO THRASH CACHE QUEUE MANAGER
    4.
    发明申请
    ZERO THRASH CACHE QUEUE MANAGER 审中-公开

    公开(公告)号：US20190034351A1

    公开(公告)日：2019-01-31

    申请号：US15826105

    申请日：2017-11-29

    申请人： Barak Hermesh ,  Ziv Kfir ,  Amos Klimker ,  Doron Nakar ,  Lior Nevo

    发明人： Barak Hermesh ,  Ziv Kfir ,  Amos Klimker ,  Doron Nakar ,  Lior Nevo

    IPC分类号： G06F12/123 ,  G06F9/38 ,  G06F9/50 ,  G06F12/0862

    摘要： Various systems and methods for queue management in computer memory are described herein. A system for implementing a zero thrash cache queue manager includes a processor subsystem to: receive a memory access request for a queue; write data to a queue tail cache line in a cache when the memory access request is to add data to the queue, the queue tail cache line protected from being evicted from the cache; and read data from a current queue head cache line in the cache when the memory access request is to remove data from the queue, the current queue head cache line protected from being evicted from the cache.

    UPSTREAM POWER CONTROL FOR MULTIPLE TRANSMIT CHANNELS
    5.
    发明申请
    UPSTREAM POWER CONTROL FOR MULTIPLE TRANSMIT CHANNELS 有权
    用于多个发送通道的UPSTREAM功率控制

    公开(公告)号：US20100131999A1

    公开(公告)日：2010-05-27

    申请号：US12323928

    申请日：2008-11-26

    申请人： Ziv Kfir ,  Efrat Levy ,  Naor Goldman

    发明人： Ziv Kfir ,  Efrat Levy ,  Naor Goldman

    IPC分类号： H04N7/173

    CPC分类号： H04N7/17309 ,  H04L12/2801 ,  H04N7/102 ,  H04N17/004 ,  H04N21/44209 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6582

    摘要： A novel apparatus for and method of upstream power control for multiple transmit channels. The invention is particularly useful in environments that include two level amplification, wherein the first level corresponds to each channel separately and the second level corresponds to the joint sum of all the channels. When working with two-level amplification, changing the joint sum amplification is permitted during specific time periods known as “CMTS re-configuration time” in the DOCSIS specification. The mechanism functions to maintain an optimal transmit power operating point of the PGA using self-configuration without any need to receive permission from an exterior control entity such as the cable head-end thus bypassing the prior art requirement of waiting for a global reconfiguration time from the CMTS (i.e. when the specification assures that there is sufficient time to change the PGA gain). This can be achieved with high confidence if there is sufficient quiet time (which is calculated) to perform the self-configuration of the PGA within a specific period of time.

    摘要翻译： 一种用于多个发射信道的上行功率控制的新型装置和方法。 本发明在包括两级放大的环境中特别有用，其中第一级分别对应于每个通道，第二级对应于所有通道的联合和。 当使用两级放大时，在DOCSIS规范中称为“CMTS重新配置时间”的特定时间段内允许更改联合和放大。 该机制用于使用自配置来保持PGA的最佳发射功率工作点，而不需要从诸如电缆头端的外部控制实体接收许可，从而绕过等待全局重新配置时间的现有技术要求 CMTS（即当规范确保有足够的时间来改变PGA增益时）。 如果在特定时间段内有足够的安静时间（被计算）来执行PGA的自配置，则可以以高置信度来实现。

    Upstream power control for multiple transmit channels
    7.
    发明授权
    Upstream power control for multiple transmit channels 有权
    用于多个发射信道的上行功率控制

    公开(公告)号：US08677435B2

    公开(公告)日：2014-03-18

    申请号：US12323928

    申请日：2008-11-26

    申请人： Ziv Kfir ,  Efrat Levy ,  Naor Goldman

    发明人： Ziv Kfir ,  Efrat Levy ,  Naor Goldman

    IPC分类号： H04N7/173

    CPC分类号： H04N7/17309 ,  H04L12/2801 ,  H04N7/102 ,  H04N17/004 ,  H04N21/44209 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6582

    摘要： A novel apparatus for and method of upstream power control for multiple transmit channels. The invention is particularly useful in environments that include two level amplification, wherein the first level corresponds to each channel separately and the second level corresponds to the joint sum of all the channels. When working with two-level amplification, changing the joint sum amplification is permitted during specific time periods known as “CMTS re-configuration time” in the DOCSIS specification. The mechanism functions to maintain an optimal transmit power operating point of the PGA using self-configuration without any need to receive permission from an exterior control entity such as the cable head-end thus bypassing the prior art requirement of waiting for a global reconfiguration time from the CMTS (i.e. when the specification assures that there is sufficient time to change the PGA gain). This can be achieved with high confidence if there is sufficient quiet time (which is calculated) to perform the self-configuration of the PGA within a specific period of time.

    摘要翻译： 一种用于多个发射信道的上行功率控制的新型装置和方法。 本发明在包括两级放大的环境中特别有用，其中第一级分别对应于每个通道，第二级对应于所有通道的联合和。 当使用两级放大时，在DOCSIS规范中称为“CMTS重新配置时间”的特定时间段内允许更改联合和放大。 该机制用于使用自配置来保持PGA的最佳发射功率工作点，而不需要从诸如电缆头端的外部控制实体接收许可，从而绕过等待全局重新配置时间的现有技术要求 CMTS（即当规范确保有足够的时间来改变PGA增益时）。 如果在特定时间段内有足够的安静时间（被计算）来执行PGA的自配置，则可以以高置信度来实现。