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1. 发明申请

WO2008103996A1 CHANNEL CHANGE LATENCY REDUCTION 审中-公开
标题翻译：频道更改减少
公开(公告)号：WO2008103996A1
公开(公告)日：2008-08-28
申请号：PCT/US2008/054915
申请日：2008-02-25
申请人： MAXLINEAR, INC. , RAMESH, Sridhar , LING, Curtis , AKELLA, Ramakrishna , LEE, Brenndon
发明人： RAMESH, Sridhar , LING, Curtis , AKELLA, Ramakrishna , LEE, Brenndon
IPC分类号： H04N7/173
CPC分类号： H04H60/43 , H04H20/26 , H04H20/40 , H04H60/11 , H04N21/41407 , H04N21/4384
摘要： A wireless communication system is enhanced to allow for low-latency channel surfing and to enable a user to quickly see the content carried over a selected channel while searching channels for desired content. The techniques for reducing the channel change latency may be implemented in a transmitter, receiver, or in a combination of transmitter and receiver. The wireless communication system is optionally a DVB-H communication system. The transmitter may generate and transmit one or more auxiliary channels, where each auxiliary channel contains reduced resolution content corresponding to one or more channels. The receiver may process the one or more auxiliary channels to present the reduced resolution content while processing the full resolution channel for display. The receiver caches portions of content from one or more non-selected channels and presents the cached content when the channel is selected while concurrently searching and processing the full resolution channel content.
摘要翻译：增强无线通信系统以允许低等待时间的信道冲浪，并且使得用户能够在搜索频道寻找所需内容的同时快速查看通过所选频道携带的内容。用于减少信道改变等待时间的技术可以在发射机，接收机或发射机和接收机的组合中实现。无线通信系统可选地是DVB-H通信系统。发射机可以生成和发送一个或多个辅助信道，其中每个辅助信道包含对应于一个或多个信道的降低的分辨率内容。接收机可以处理一个或多个辅助信道以呈现降低的分辨率内容，同时处理用于显示的全分辨率信道。接收器从一个或多个非选择的信道缓存部分内容，并且在同时搜索和处理全分辨率信道内容的同时选择信道时呈现缓存的内容。

2. 发明申请

WO2009035790A1 TUNER FOR CABLE, SATELLITE AND BROADCAST APPLICATIONS 审中-公开
标题翻译：电缆，卫星和广播应用的调谐器
公开(公告)号：WO2009035790A1
公开(公告)日：2009-03-19
申请号：PCT/US2008/072013
申请日：2008-08-01
申请人： MAXLINEAR, INC. , LING, Curtis , TIERNEY, Patrick , AKELLA, Ramakrishna
发明人： LING, Curtis , TIERNEY, Patrick , AKELLA, Ramakrishna
IPC分类号： H04B1/18
CPC分类号： H04N5/50 , H04N5/4401 , H04N5/4446 , H04N5/455 , H04N21/4263 , H04N21/43632 , H04N21/4382 , H04N21/443
摘要： A tuner includes, in part, one or mixers, one or more filters, one or more variable gain stages, one or more analog to digital converters, and a baseband processor. Each filter is responsive to an associated mixer's output signal. Each variable gain stage is responsive to an associated filter's output. Each analog-to-digital converter is adapted to convert the output signal of an associated variable gain stage to a digital signal. The baseband processor is responsive to the digital signal supplied by the analog-to-digital converter(s). The baseband processor is further configured to supply a signal to be demodulated by a processing unit external to the integrated circuit. The baseband processor performs no or a fraction of the required demodulation functions. The processing unit may be a central processing unit or a graphical processing unit.
摘要翻译：调谐器部分地包括一个或者混频器，一个或多个滤波器，一个或多个可变增益级，一个或多个模数转换器和基带处理器。每个滤波器响应于相关混频器的输出信号。每个可变增益级都响应相关过滤器的输出。每个模拟 - 数字转换器适于将相关联的可变增益级的输出信号转换为数字信号。基带处理器响应于由模数转换器提供的数字信号。基带处理器还被配置为提供要由集成电路外部的处理单元解调的信号。基带处理器执行所需解调功能的任何部分或一部分。处理单元可以是中央处理单元或图形处理单元。

3. 发明公开

EP2183854A1 TUNER FOR CABLE, SATELLITE AND BROADCAST APPLICATIONS 审中-公开
标题翻译：调谐器有线，卫星和广播应用
公开(公告)号：EP2183854A1
公开(公告)日：2010-05-12
申请号：EP08830954.7
申请日：2008-08-01
申请人： Maxlinear, Inc.
发明人： LING, Curtis , TIERNEY, Patrick , AKELLA, Ramakrishna
IPC分类号： H04B1/18
CPC分类号： H04N5/50 , H04N5/4401 , H04N5/4446 , H04N5/455 , H04N21/4263 , H04N21/43632 , H04N21/4382 , H04N21/443
摘要： A tuner includes, in part, one or mixers, one or more filters, one or more variable gain stages, one or more analog to digital converters, and a baseband processor. Each filter is responsive to an associated mixer's output signal. Each variable gain stage is responsive to an associated filter's output. Each analog-to-digital converter is adapted to convert the output signal of an associated variable gain stage to a digital signal. The baseband processor is responsive to the digital signal supplied by the analog-to-digital converter(s). The baseband processor is further configured to supply a signal to be demodulated by a processing unit external to the integrated circuit. The baseband processor performs no or a fraction of the required demodulation functions. The processing unit may be a central processing unit or a graphical processing unit.

4. 发明公开

EP2123036A1 CHANNEL CHANGE LATENCY REDUCTION 审中-公开
标题翻译：异径频道改变延迟
公开(公告)号：EP2123036A1
公开(公告)日：2009-11-25
申请号：EP08730671.8
申请日：2008-02-25
申请人： Maxlinear, Inc.
发明人： RAMESH, Sridhar , LING, Curtis , AKELLA, Ramakrishna , LEE, Brenndon
IPC分类号： H04N7/173
CPC分类号： H04H60/43 , H04H20/26 , H04H20/40 , H04H60/11 , H04N21/41407 , H04N21/4384
摘要： A wireless communication system is enhanced to allow for low-latency channel surfing and to enable a user to quickly see the content carried over a selected channel while searching channels for desired content. The techniques for reducing the channel change latency may be implemented in a transmitter, receiver, or in a combination of transmitter and receiver. The wireless communication system is optionally a DVB-H communication system. The transmitter may generate and transmit one or more auxiliary channels, where each auxiliary channel contains reduced resolution content corresponding to one or more channels. The receiver may process the one or more auxiliary channels to present the reduced resolution content while processing the full resolution channel for display. The receiver caches portions of content from one or more non-selected channels and presents the cached content when the channel is selected while concurrently searching and processing the full resolution channel content.

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