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

US20070180187A1 Reducing power consumption by disabling refresh of unused portions of DRAM during periods of device inactivity 审中-公开
标题翻译：通过在设备不活动期间禁用DRAM未使用部分的刷新来降低功耗
公开(公告)号：US20070180187A1
公开(公告)日：2007-08-02
申请号：US11345975
申请日：2006-02-01
申请人： Keith Olson , Alex Tu
发明人： Keith Olson , Alex Tu
IPC分类号： G06F12/00
CPC分类号： G11C11/406 , G06F12/10 , G06F2212/1028 , G11C11/40622 , G11C2211/4067 , Y02D10/13
摘要： Power consumption of a mobile communication device is reduced by disabling refreshing of unused portions of DRAM. DRAM includes multiple separately refreshable memory refresh ranges (MRRs). A memory refresh manager (MRM) within the device's operating system identifies ranges of virtual memory that will not be used during subsequent sleep mode operation. The MRM remaps virtual to physical memory space to conglomerate the physical memory pages (associated with virtual memory that will not be used) in certain MRRs such that the contents of entire MRRs need not be maintained in sleep mode. Information in any remapped physical page that needs to be maintained during sleep mode is copied so that it resides at the same virtual address after the remapping as before. Other software operates in virtual memory space and is not affected by the remapping. Refreshing of the certain MRRs is then disabled for sleep mode, thereby reducing power consumption.
摘要翻译：通过禁用DRAM的未使用部分的刷新来减少移动通信设备的功耗。 DRAM包括多个可单独刷新的存储器刷新范围（MRR）。设备操作系统内的存储器刷新管理器（MRM）识别在随后的睡眠模式操作期间不会使用的虚拟存储器的范围。 MRM将虚拟物理内存重新映射到物理内存空间，以将某些MRR中的物理内存页（与不使用的虚拟内存相关联）集中在一起，使得整个MRR的内容不需要在睡眠模式下维护。在睡眠模式下需要维护的任何重新映射的物理页面中的信息将被复制，以便在重新映射之前驻留在相同的虚拟地址。其他软件在虚拟内存空间中运行，不受重映射影响。然后，某些MRR的刷新在休眠模式下被禁用，从而降低功耗。

2. 发明申请

US20060281486A1 Method and apparatus for receiving data and paging from multiple wireless communication systems 有权
标题翻译：用于从多个无线通信系统接收数据和寻呼的方法和装置
公开(公告)号：US20060281486A1
公开(公告)日：2006-12-14
申请号：US11432832
申请日：2006-05-11
申请人： Francis Ngai , Alex Tu , Serguei Glazko , Steven Ciccarelli
发明人： Francis Ngai , Alex Tu , Serguei Glazko , Steven Ciccarelli
IPC分类号： H04M1/00
CPC分类号： H04W88/06 , H04W52/0245 , H04W68/00 , H04W68/025 , Y02D70/1222 , Y02D70/1242
摘要： Techniques for operating two receivers to receive data and paging from two systems are described. A primary receiver is associated with better performance than a secondary receiver under poor RF conditions. The two receivers may be operated in either a hybrid mode in which the primary receiver is used to receive paging or a simultaneous mode in which the second receiver is used to receive paging. One of the modes may be selected for use based on RF conditions, received power, demodulation metrics, and/or other criteria. In one design, a mode is selected based on the received power and one or more thresholds. In another design, the hybrid mode is selected for poor RF conditions and, for good RF conditions, the hybrid or simultaneous mode is selected based on received power.
摘要翻译：描述了用于操作两个接收机以从两个系统接收数据和寻呼的技术。在较差的RF条件下，主接收机具有比次级接收机更好的性能。两个接收机可以以主接收机用于接收寻呼的混合模式或其中第二接收机用于接收寻呼的同时模式来操作。可以基于RF条件，接收功率，解调度量和/或其他标准来选择一种模式来使用。在一种设计中，基于接收功率和一个或多个阈值来选择模式。在另一种设计中，为差的RF条件选择混合模式，并且对于良好的RF条件，基于接收功率选择混合或同时模式。

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