专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20110188489A1 MULTI-CHANNEL RECEIVER WITH IMPROVED AGC 失效
标题翻译：具有改进AGC的多通道接收器
公开(公告)号：US20110188489A1
公开(公告)日：2011-08-04
申请号：US13085525
申请日：2011-04-13
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04B1/06 , H04J1/00
CPC分类号： H04L27/0008 , H03G3/3068 , H03G3/3078 , H04L27/2649
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, a primary AGC loop controls an analog sub-receiver adapted to simultaneously receive multiple signals. Multiple digital demodulators, coupled to the sub-receiver, demodulate the multiple received signals. Multiple secondary AGC loops, one for each received signal, compensate for variations in demodulated signal strengths caused by the primary AGC loop. A feed-forward AGC compensation technique generates scalar control values for scaling the demodulated signals before the demodulated signals are processed by the secondary AGC loops. This at least partially compensates for gain variations caused by the primary AGC, reducing received signal drop-outs before the secondary AGC loops can compensate for the gain variations. Because of systemic delays in the sub-receiver and the demodulators, the scalar control values are independently timed to be coincident with the variations in the demodulated signal strengths caused by the primary AGC loop.
摘要翻译：用于卫星广播应用的改进的多频道接收机等。在示例性实施例中，主AGC环路控制适于同时接收多个信号的模拟子接收机。耦合到子接收机的多个数字解调器解调多个接收信号。多个次级AGC环路，每个接收信号一个补偿由主AGC环路引起的解调信号强度的变化。前馈AGC补偿技术产生标量控制值，用于在解调后的信号由次级AGC环路处理之前缩放解调信号。这至少部分地补偿由主AGC引起的增益变化，在次级AGC环路可以补偿增益变化之前减少接收信号丢失。由于子接收机和解调器中的系统延迟，标量控制值被独立地定时以与由主AGC环路引起的解调信号强度的变化一致。

2. 发明授权

US07978773B2 Multi-channel receiver with improved AGC 有权
标题翻译：具有改进AGC的多通道接收器
公开(公告)号：US07978773B2
公开(公告)日：2011-07-12
申请号：US11648702
申请日：2006-12-29
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04K27/00
CPC分类号： H04L27/0008 , H03G3/3068 , H03G3/3078 , H04L27/2649
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, a primary AGC loop controls an analog sub-receiver adapted to simultaneously receive multiple signals. Multiple digital demodulators, coupled to the sub-receiver, demodulate the multiple received signals. Multiple secondary AGC loops, one for each received signal, compensate for variations in demodulated signal strengths caused by the primary AGC loop. A feed-forward AGC compensation technique generates scalar control values for scaling the demodulated signals before the demodulated signals are processed by the secondary AGC loops. This at least partially compensates for gain variations caused by the primary AGC, reducing received signal drop-outs before the secondary AGC loops can compensate for the gain variations. Because of systemic delays in the sub-receiver and the demodulators, the scalar control values are independently timed to be coincident with the variations in the demodulated signal strengths caused by the primary AGC loop.
摘要翻译：用于卫星广播应用的改进的多频道接收机等。在示例性实施例中，主AGC环路控制适于同时接收多个信号的模拟子接收机。耦合到子接收机的多个数字解调器解调多个接收信号。多个次级AGC环路，每个接收信号一个补偿由主AGC环路引起的解调信号强度的变化。前馈AGC补偿技术产生标量控制值，用于在解调后的信号由次级AGC环路处理之前缩放解调信号。这至少部分地补偿由主AGC引起的增益变化，在次级AGC环路可以补偿增益变化之前减少接收信号丢失。由于子接收机和解调器中的系统延迟，标量控制值被独立地定时以与由主AGC环路引起的解调信号强度的变化一致。

3. 发明申请

US20080268798A1 Multi-channel receiver with improved AGC 有权
标题翻译：具有改进AGC的多通道接收器
公开(公告)号：US20080268798A1
公开(公告)日：2008-10-30
申请号：US11789550
申请日：2007-04-25
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04Q7/20
CPC分类号： H03G3/3078
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, an AGC loop, under the control of an AGC processor, controls the gain of an analog sub-receiver adapted to simultaneously receive multiple signals to achieve a desired AGC setpoint signal intensity from the sub-receiver. Multiple digital demodulators, coupled to the sub-receiver by an analog-to-digital converter (ADC), demodulate the multiple received signals. The AGC controller, based upon which of the received signals are being demodulated, selects the desired AGC setpoint from a table of setpoints. The AGC controller may also provide selective power control to circuitry in the receiver and select the resolution of the ADC. The controller updates the AGC loop with step values selected from a group of values by an AGC control algorithm. Different groups of step values may be used by the controller depending on whether the signals are fading or not.
摘要翻译：用于卫星广播应用的改进的多频道接收机等。在示例性实施例中，在AGC处理器的控制下的AGC环路控制适于同时接收多个信号以从子接收机实现期望的AGC设定点信号强度的模拟子接收机的增益。通过模数转换器（ADC）耦合到子接收器的多个数字解调器解调多个接收信号。 AGC控制器基于哪个接收信号被解调，从设定点表中选择所需的AGC设定点。 AGC控制器还可以向接收机中的电路提供选择性功率控制，并选择ADC的分辨率。控制器通过AGC控制算法从具有一组值的步长值更新AGC环路。根据信号是否衰减，控制器可以使用不同的步进值组。

4. 发明授权

US08391384B2 Multi-channel receiver with improved AGC 失效
标题翻译：具有改进AGC的多通道接收器
公开(公告)号：US08391384B2
公开(公告)日：2013-03-05
申请号：US13085525
申请日：2011-04-13
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04K27/00
CPC分类号： H04L27/0008 , H03G3/3068 , H03G3/3078 , H04L27/2649
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, a primary AGC loop controls an analog sub-receiver adapted to simultaneously receive multiple signals. Multiple digital demodulators, coupled to the sub-receiver, demodulate the multiple received signals. Multiple secondary AGC loops, one for each received signal, compensate for variations in demodulated signal strengths caused by the primary AGC loop. A feed-forward AGC compensation technique generates scalar control values for scaling the demodulated signals before the demodulated signals are processed by the secondary AGC loops. This at least partially compensates for gain variations caused by the primary AGC, reducing received signal drop-outs before the secondary AGC loops can compensate for the gain variations. Because of systemic delays in the sub-receiver and the demodulators, the scalar control values are independently timed to be coincident with the variations in the demodulated signal strengths caused by the primary AGC loop.
摘要翻译：用于卫星广播应用的改进的多频道接收机等。在示例性实施例中，主AGC环路控制适于同时接收多个信号的模拟子接收机。耦合到子接收机的多个数字解调器解调多个接收信号。多个次级AGC环路，每个接收信号一个补偿由主AGC环路引起的解调信号强度的变化。前馈AGC补偿技术产生标量控制值，用于在解调后的信号由次级AGC环路处理之前缩放解调信号。这至少部分地补偿由主AGC引起的增益变化，在次级AGC环路可以补偿增益变化之前减少接收信号丢失。由于子接收机和解调器中的系统延迟，标量控制值被独立地定时以与由主AGC环路引起的解调信号强度的变化一致。

5. 发明授权

US07809343B2 Multi-channel receiver with improved AGC 有权
公开(公告)号：US07809343B2
公开(公告)日：2010-10-05
申请号：US11796006
申请日：2007-04-25
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04B7/00 , H04M1/00
CPC分类号： H04L27/2647 , H04L5/0007
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, an AGC loop, under the control of an AGC processor, controls the gain of an analog sub-receiver adapted to simultaneously receive multiple signals to achieve a desired AGC setpoint signal intensity from the sub-receiver. Multiple digital demodulators, coupled to the sub-receiver by an analog-to-digital converter (ADC), demodulate the multiple received signals. The AGC controller, based upon which of the received signals are being demodulated, selects the desired AGC setpoint from a table of setpoints. The AGC controller may also provide selective power control to circuitry in the receiver and select the resolution of the ADC. The controller updates the AGC loop with step values selected from a group of values by an AGC control algorithm. Different groups of step values may be used by the controller depending on whether the signals are fading or not.

6. 发明申请

US20080267326A1 Multi-channel receiver with improved AGC 有权
公开(公告)号：US20080267326A1
公开(公告)日：2008-10-30
申请号：US11796006
申请日：2007-04-25
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04L27/08
CPC分类号： H04L27/2647 , H04L5/0007
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, an AGC loop, under the control of an AGC processor, controls the gain of an analog sub-receiver adapted to simultaneously receive multiple signals to achieve a desired AGC setpoint signal intensity from the sub-receiver. Multiple digital demodulators, coupled to the sub-receiver by an analog-to-digital converter (ADC), demodulate the multiple received signals. The AGC controller, based upon which of the received signals are being demodulated, selects the desired AGC setpoint from a table of setpoints. The AGC controller may also provide selective power control to circuitry in the receiver and select the resolution of the ADC. The controller updates the AGC loop with step values selected from a group of values by an AGC control algorithm. Different groups of step values may be used by the controller depending on whether the signals are fading or not.

7. 发明授权

US07852133B2 Phase-locked loop (PLL) having extended tracking range 有权
标题翻译：锁相环（PLL）具有扩展的跟踪范围
公开(公告)号：US07852133B2
公开(公告)日：2010-12-14
申请号：US12159246
申请日：2007-09-28
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H03L7/06
CPC分类号： H03L7/10 , H03L7/0991 , H04L2027/0046
摘要： A method for extending a tracking range of a PLL includes the steps of: establishing an initial tracking window of the PLL, the tracking window having a first width associated therewith; and dynamically adjusting the tracking window of the PLL within an extended tracking range when a frequency of an input signal supplied to the PLL is outside of the tracking window, the extended tracking range having a second width associated therewith which is greater than the first width.
摘要翻译：用于扩展PLL的跟踪范围的方法包括以下步骤：建立PLL的初始跟踪窗口，跟踪窗口具有与之相关联的第一宽度; 以及当提供给所述PLL的输入信号的频率在所述跟踪窗口之外时，在扩展跟踪范围内动态调整所述PLL的跟踪窗口，所述扩展跟踪范围具有大于所述第一宽度的第二宽度。

8. 发明申请

US20100253400A1 Phase-Locked Loop (PLL) Having Extended Tracking Range 有权
标题翻译：具有扩展跟踪范围的锁相环（PLL）
公开(公告)号：US20100253400A1
公开(公告)日：2010-10-07
申请号：US12159246
申请日：2007-09-28
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H03L7/08
CPC分类号： H03L7/10 , H03L7/0991 , H04L2027/0046
摘要： A method for extending a tracking range of a PLL includes the steps of: establishing an initial tracking window of the PLL, the tracking window having a first width associated therewith; and dynamically adjusting the tracking window of the PLL within an extended tracking range when a frequency of an input signal supplied to the PLL is outside of the tracking window, the extended tracking range having a second width associated therewith which is greater than the first width.
摘要翻译：用于扩展PLL的跟踪范围的方法包括以下步骤：建立PLL的初始跟踪窗口，跟踪窗口具有与之相关联的第一宽度; 以及当提供给所述PLL的输入信号的频率在所述跟踪窗口之外时，在扩展跟踪范围内动态调整所述PLL的跟踪窗口，所述扩展跟踪范围具有大于所述第一宽度的第二宽度。

9. 发明授权

US07769357B2 Multi-channel receiver with improved AGC 有权
标题翻译：具有改进AGC的多通道接收器
公开(公告)号：US07769357B2
公开(公告)日：2010-08-03
申请号：US11789550
申请日：2007-04-25
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04B7/00 , H04M1/00
CPC分类号： H03G3/3078
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, an AGC loop, under the control of an AGC processor, controls the gain of an analog sub-receiver adapted to simultaneously receive multiple signals to achieve a desired AGC setpoint signal intensity from the sub-receiver. Multiple digital demodulators, coupled to the sub-receiver by an analog-to-digital converter (ADC), demodulate the multiple received signals. The AGC controller, based upon which of the received signals are being demodulated, selects the desired AGC setpoint from a table of setpoints. The AGC controller may also provide selective power control to circuitry in the receiver and select the resolution of the ADC. The controller updates the AGC loop with step values selected from a group of values by an AGC control algorithm. Different groups of step values may be used by the controller depending on whether the signals are fading or not.
摘要翻译：用于卫星广播应用的改进的多频道接收机等。在示例性实施例中，在AGC处理器的控制下的AGC环路控制适于同时接收多个信号以从子接收机实现期望的AGC设定点信号强度的模拟子接收机的增益。通过模数转换器（ADC）耦合到子接收器的多个数字解调器解调多个接收信号。 AGC控制器基于哪个接收信号被解调，从设定点表中选择所需的AGC设定点。 AGC控制器还可以向接收机中的电路提供选择性功率控制，并选择ADC的分辨率。控制器通过AGC控制算法从具有一组值的步长值更新AGC环路。根据信号是否衰减，控制器可以使用不同的步进值组。

10. 发明申请

US20080159446A1 Multi-channel receiver with improved AGC 有权
标题翻译：具有改进AGC的多通道接收器
公开(公告)号：US20080159446A1
公开(公告)日：2008-07-03
申请号：US11648702
申请日：2006-12-29
申请人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
发明人： Yhean-Sen Lai , Jie Song , Zhenyu Wang , Jinguo Yu
IPC分类号： H04L27/08
CPC分类号： H04L27/0008 , H03G3/3068 , H03G3/3078 , H04L27/2649
摘要： An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, a primary AGC loop controls an analog sub-receiver adapted to simultaneously receive multiple signals. Multiple digital demodulators, coupled to the sub-receiver, demodulate the multiple received signals. Multiple secondary AGC loops, one for each received signal, compensate for variations in demodulated signal strengths caused by the primary AGC loop. A feed-forward AGC compensation technique generates scalar control values for scaling the demodulated signals before the demodulated signals are processed by the secondary AGC loops. This at least partially compensates for gain variations caused by the primary AGC, reducing received signal drop-outs before the secondary AGC loops can compensate for the gain variations. Because of systemic delays in the sub-receiver and the demodulators, the scalar control values are independently timed to be coincident with the variations in the demodulated signal strengths caused by the primary AGC loop.
摘要翻译：用于卫星广播应用的改进的多频道接收机等。在示例性实施例中，主AGC环路控制适于同时接收多个信号的模拟子接收机。耦合到子接收机的多个数字解调器解调多个接收信号。多个次级AGC环路，每个接收信号一个补偿由主AGC环路引起的解调信号强度的变化。前馈AGC补偿技术产生标量控制值，用于在解调后的信号由次级AGC环路处理之前缩放解调信号。这至少部分地补偿由主AGC引起的增益变化，在次级AGC环路可以补偿增益变化之前减少接收信号丢失。由于子接收机和解调器中的系统延迟，标量控制值被独立地定时以与由主AGC环路引起的解调信号强度的变化一致。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式