-
公开(公告)号：US20100157997A1
公开(公告)日：2010-06-24
申请号：US12624356
申请日：2009-11-23
IPC分类号： H04L12/56
CPC分类号： H04L61/35 , H04L29/12009 , H04L29/12783 , H04L45/04
摘要： A method and system for determining a route for a packet traveling over at least one system from a source to a destination is disclosed. A first geographic area corresponds to the source and a second geographic area corresponds to the destination. The destination further has an address which does not indicate the second geographic area. In this aspect, the method and system include associating an address for the destination with the second geographic area to allow selection of the route for the data packet based on the second geographic area and selecting the route based on a second geographic area. In a second aspect, the method and system include providing a direct link having a controllable amount of traffic and selecting the direct link as at least a portion of the route when a data packet to the destination is to be routed. The method and system also facilitate selection of a route for a data packet. In this aspect, the method and system include obtaining information relating to an autonomous system. The autonomous system has a geographic area. The information includes the geographic area. In this aspect, the method and system also include associating the autonomous system with the geographic area to allow selection of the route based on the geographic area.
摘要翻译： 公开了一种用于确定从源到目的地的至少一个系统上行进的分组的路由的方法和系统。 第一地理区域对应于源，而第二地理区域对应于目的地。 目的地还具有不指示第二地理区域的地址。 在这方面，该方法和系统包括将目的地的地址与第二地理区域相关联，以允许基于第二地理区域选择数据分组的路由，并且基于第二地理区域选择路线。 在第二方面，所述方法和系统包括提供具有可控量的业务的直接链路，并且当要路由到目的地的数据分组时，选择直接链路作为路由的至少一部分。 该方法和系统还便于选择数据分组的路由。 在这方面，该方法和系统包括获得与自主系统有关的信息。 自治系统有一个地理区域。 信息包括地理区域。 在这方面，该方法和系统还包括将自主系统与地理区域相关联，以允许基于地理区域选择路线。
-
公开(公告)号：US06870851B1
公开(公告)日：2005-03-22
申请号：US09580990
申请日：2000-05-26
CPC分类号： H04L61/35 , H04L29/12009 , H04L29/12783 , H04L45/04
摘要： A method and system for determining a route for a packet traveling over at least one system from a source to a destination is disclosed. A first geographic area corresponds to the source and a second geographic area corresponds to the destination. The destination further has an address which does not indicate the second geographic area. In this aspect, the method and system include associating an address for the destination with the second geographic area to allow selection of the route for the data packet based on the second geographic area and selecting the route based on a second geographic area. In a second aspect, the method and system include providing a direct link having a controllable amount of traffic and selecting the direct link as at least a portion of the route when a data packet to the destination is to be routed. The method and system also facilitate selection of a route for a data packet. In this aspect, the method and system include obtaining information relating to an autonomous system. The autonomous system has a geographic area. The information includes the geographic area. In this aspect, the method and system also include associating the autonomous system with the geographic area to allow selection of the route based on the geographic area.
-
公开(公告)号：US06542539B1
公开(公告)日：2003-04-01
申请号：US08996868
申请日：1997-12-23
IPC分类号： H03H740
CPC分类号： H03H21/0012
摘要： Multiported register files for use in storing coefficients in adaptive FIR filters. incorporate computational ability, e.g., the ability to perform computation on coefficient values or derivatives thereof, or to control the operations performed thereon. For example, a multiported register file may incorporate an overflow/underflow detection and/or saturation unit. Also, the multiported register file may incorporate a special encoder to speed up the multiplication process, e.g., the so-called “Booth” encoder. Likewise, the multiported register file may incorporate a converter for changing the representation of the coefficients, e.g., a two's complement to sign-magnitude converter. All computation performed in the multiported register file is performed outside of the critical path of the filtering or of the coefficient updating. Using such improved multiported register files, adaptive FIR filters can be constructed which operate faster, and with lower power consumption.
摘要翻译： 用于在自适应FIR滤波器中存储系数的多端口寄存器文件。 结合计算能力，例如对系数值或其派生词进行计算的能力，或控制其上执行的操作。 例如，多端口寄存器文件可以包含溢出/下溢检测和/或饱和单元。 此外，多端口寄存器文件可以包含特殊编码器以加速乘法过程，例如所谓的“Booth”编码器。 类似地，多端口寄存器堆可以包括用于改变系数的表示的转换器，例如二进制符号幅度转换器的补码。 在多端口寄存器文件中执行的所有计算都在滤波或系数更新的关键路径之外执行。 使用这种改进的多端口寄存器文件，可以构建自适应FIR滤波器，其运行更快，功耗更低。
-
4.发明授权Apparatus and method for adaptive reduction of power consumption in integrated circuits 有权集成电路中功耗自适应降低的装置和方法公开(公告)号：US06282661B1
公开(公告)日：2001-08-28
申请号：US09250120
申请日：1999-02-16
IPC分类号： G06F1710
CPC分类号： H03H21/0012
摘要： Power consumption in program implemented circuits and the like is dynamically controlled in accordance with the circuit performance over time, not by reducing switched capacitance as was done in prior hardware circuit implementations but, in accordance with the invention, by dynamically reducing the number of machine cycles required to implement the desired circuit at an acceptable performance level. Power consumption is dynamically reduced in program implemented circuits, for example, circuits implemented on a digital signal processor (DSP), including filters employed for channel equalization and for echo cancellation by monitoring the circuit performance over time and dynamically scaling back filter parameters when less than worst case performance is required. Scaling back of the DSP implemented filter parameters results in fewer machine cycles being required to effect the filters while maintaining adequate performance that, in turn, allows reduction in the DSP clock frequency, resulting in lower power consumption. The reduced DSP clock frequency also allows the DSP to be operated at a lower supply voltage that yields significant additional power savings.
摘要翻译： 程序实现的电路等中的功耗根据电路性能随着时间而动态地控制，而不是如现有硬件电路实现中那样减少开关电容，而是根据本发明通过动态地减少机器周期数 需要以可接受的性能水平实现所需的电路。 在程序实现的电路中，例如在数字信号处理器（DSP）上实现的电路（包括用于信道均衡的滤波器）以及通过随时间监视电路性能并用于回波消除的功率消耗被动态地减少，并且当小于 最坏的情况是需要性能。 缩减DSP实现的滤波器参数导致实现滤波器所需的更少的机器周期，同时保持足够的性能，从而降低DSP时钟频率，从而降低功耗。 降低的DSP时钟频率还允许DSP以更低的电源电压运行，从而显着提高功率节省。
-
公开(公告)号：US06065032A
公开(公告)日：2000-05-16
申请号：US25945
申请日：1998-02-19
CPC分类号： G06F7/5338 , H03K19/215
摘要： The NEG output of the Booth encoding circuit and the multiplicand input are gated so as to minimize switching activity in the multiplier without adding any delay to the critical path thereof. Advantageously, power consumption in the multiplier is significantly reduced, e.g., on the order of 90%, when multiplication is in fact not being performed. Additionally, by changing the structure of the last XOR gate of the partial product generation circuit, the need to gate the multiplicand input can be eliminated. Advantageously, this eliminates the extra circuitry which would otherwise be required to gate the multiplicand input, thus reducing cost. Furthermore, additional power savings may be achieved by efficiently resynchronizing the multiplicand input with the Booth encoded input to the partial product circuit.
摘要翻译： 展位编码电路和被乘数输入的NEG输出被选通，以便最小化乘法器中的开关活动，而不对其关键路径增加任何延迟。 有利地，当实际上不执行乘法时，乘法器中的功率消耗被显着地减小，例如大约90％。 此外，通过改变部分乘积产生电路的最后的异或门的结构，可以消除对被乘数输入进行门控的需要。 有利地，这消除了额外的电路，否则将需要门电路被乘数输入，从而降低成本。 此外，通过将乘法器输入与布尔编码的输入有效地重新同步到部分乘积电路，可以实现额外的功率节省。
-
公开(公告)号：US06898281B1
公开(公告)日：2005-05-24
申请号：US09477910
申请日：2000-01-05
CPC分类号： H03H17/0223 , H03H17/06 , H03H2017/0247
摘要： A system and method for echo and near end cross talk (E/N) cancellation in a communications system using a pair of FIR filter ICs, wherein a first FIR filter IC filters a plurality of low amplitude E/N signals and a first portion of a plurality of data bits of a plurality of high amplitude E/N signals, and a second FIR filter IC filters a second portion of the data bits of the high amplitude E/N signals which cannot be filtered by the first FIR filter IC. The output values from the two filters are then summed to produce the E/N cancellation signal. The present invention allows for the use of lower bit-resolution, lower power consumption, and less expensive filter ICs than conventional FIR filters implemented in a single IC.
摘要翻译： 一种在使用一对FIR滤波器IC的通信系统中用于回波和近端串扰（E / N）消除的系统和方法，其中第一FIR滤波器IC滤波多个低振幅E / N信号和第一部分 多个高幅度E / N信号的多个数据位，第二FIR滤波器IC对不能被第一FIR滤波器IC滤波的高幅度E / N信号的数据位的第二部分进行滤波。 然后将来自两个滤波器的输出值相加以产生E / N消除信号。 与在单个IC中实现的常规FIR滤波器相比，本发明允许使用较低位分辨率，较低功耗和较便宜的滤波器IC。
-
公开(公告)号：US5777914A
公开(公告)日：1998-07-07
申请号：US697755
申请日：1996-08-29
CPC分类号： H03H21/0012 , H03H17/02 , H03H2021/007
摘要： In a digital filter having tap coefficients, a gain element is employed to scale the filter output. The gain element is controlled by an error monitor element which runs an adaptive process in accordance with the invention. Such a process causes each tap coefficient value to be changed so as to reduce power consumption in the filter. On the other hand, the process ensures that the filter output maintains an acceptable signal to noise ratio (SNR), despite losing the bit precision of the filter as a result of the change of the coefficient values.
摘要翻译： 在具有抽头系数的数字滤波器中，采用增益元件来缩放滤波器输出。 增益元件由根据本发明运行自适应过程的误差监测元件控制。 这样的处理使得每个抽头系数值被改变，以便降低滤波器的功耗。 另一方面，该过程确保滤波器输出维持可接受的信噪比（SNR），尽管由于系数值的改变而导致滤波器的比特精度降低。
-
公开(公告)号：US08831603B2
公开(公告)日：2014-09-09
申请号：US11480296
申请日：2006-06-30
CPC分类号： H04W52/0229 , H04W52/02 , H04W52/146 , Y02D70/1244
摘要： A method of operating a communications circuit with at least one control channel and at least one data channel includes the steps of monitoring the at least one control channel, powering a receiver portion of the circuit when the at least one control channel indicates that data is to be received, and refraining from powering the receiver portion when the at least one control channel indicates that data is not to be received. The circuit can operate, for example, under the 3GPP HSDPA standard. Where desired, the clock and power supply to the receiver portion and a bit rate processing portion can be independently gated.
摘要翻译： 一种使用至少一个控制信道和至少一个数据信道操作通信电路的方法包括以下步骤：当所述至少一个控制信道指示所述数据到达所述至少一个控制信道时监视所述至少一个控制信道，为所述电路的接收机部分供电; 并且当所述至少一个控制信道指示不接收到所述数据时，不接收对所述接收器部分供电。 该电路可以例如在3GPP HSDPA标准下操作。 如果需要，可以独立地选通到接收机部分和比特率处理部分的时钟和电源。
-
公开(公告)号：US07969992B2
公开(公告)日：2011-06-28
申请号：US12624356
申请日：2009-11-23
IPC分类号： H04L12/28
CPC分类号： H04L61/35 , H04L29/12009 , H04L29/12783 , H04L45/04
摘要： A method and system for determining a route for a packet traveling over at least one system from a source to a destination is disclosed. A first geographic area corresponds to the source and a second geographic area corresponds to the destination. The destination further has an address which does not indicate the second geographic area. In this aspect, the method and system include associating an address for the destination with the second geographic area to allow selection of the route for the data packet based on the second geographic area and selecting the route based on a second geographic area. In a second aspect, the method and system include providing a direct link having a controllable amount of traffic and selecting the direct link as at least a portion of the route when a data packet to the destination is to be routed. The method and system also facilitate selection of a route for a data packet. In this aspect, the method and system include obtaining information relating to an autonomous system. The autonomous system has a geographic area. The information includes the geographic area. In this aspect, the method and system also include associating the autonomous system with the geographic area to allow selection of the route based on the geographic area.
摘要翻译： 公开了一种用于确定从源到目的地的至少一个系统上行进的分组的路由的方法和系统。 第一地理区域对应于源，而第二地理区域对应于目的地。 目的地还具有不指示第二地理区域的地址。 在这方面，该方法和系统包括将目的地的地址与第二地理区域相关联，以允许基于第二地理区域选择数据分组的路由，并且基于第二地理区域选择路线。 在第二方面，所述方法和系统包括提供具有可控量的业务的直接链路，并且当要路由到目的地的数据分组时，选择直接链路作为路由的至少一部分。 该方法和系统还便于选择数据分组的路由。 在这方面，该方法和系统包括获得与自主系统有关的信息。 自治系统有一个地理区域。 信息包括地理区域。 在这方面，该方法和系统还包括将自主系统与地理区域相关联，以允许基于地理区域选择路线。
-
公开(公告)号：US20080004008A1
公开(公告)日：2008-01-03
申请号：US11480296
申请日：2006-06-30
IPC分类号： H04Q7/20
CPC分类号： H04W52/0229 , H04W52/02 , H04W52/146 , Y02D70/1244
摘要： A method of operating a communications circuit with at least one control channel and at least one data channel includes the steps of monitoring the at least one control channel, powering a receiver portion of the circuit when the at least one control channel indicates that data is to be received, and refraining from powering the receiver portion when the at least one control channel indicates that data is not to be received. The circuit can operate, for example, under the 3GPP HSDPA standard. Where desired, the clock and power supply to the receiver portion and a bit rate processing portion can be independently gated.
摘要翻译： 一种使用至少一个控制信道和至少一个数据信道操作通信电路的方法包括以下步骤：当所述至少一个控制信道指示所述数据到达所述至少一个控制信道时监视所述至少一个控制信道，为所述电路的接收机部分供电; 并且当所述至少一个控制信道指示不接收到所述数据时，不接收对所述接收器部分供电。 该电路可以例如在3GPP HSDPA标准下操作。 如果需要，可以独立地选通到接收机部分和比特率处理部分的时钟和电源。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.017 秒)