公开(公告)号：EP1277286B9

公开(公告)日：2007-10-31

申请号：EP01924707.1

申请日：2001-04-05

申请人： SiRF Technology, Inc.

发明人： UNDERBRINK, Paul, A.

IPC分类号： H04B1/38

CPC分类号： H03L7/081 ,  G01S19/235 ,  H03L7/1976

摘要： The invention is directed to a personal telecommunications device having both global positioning systems (GPS) and telecommunications provisions which share a common clock source. GPS provisions include a feedback loop for controlling an oscillator that generates a GPS system signal based upon the common clock signal. The feedback loop includes a frequency synthesizer for generating a feedback control signal, a phase comparator for generating a control signal in accordance with the feedback signal and the common clock signal, and a loop filter for processing and outputting the control signal to the oscillator to control the frequency of GPS system signals.

公开(公告)号：EP1661003A2

公开(公告)日：2006-05-31

申请号：EP04780696.3

申请日：2004-08-10

申请人： Sirf Technology, Inc.

发明人： UNDERBRINK, Paul, A. ,  FALK, Henry

IPC分类号： G06F12/00

CPC分类号： G06F12/0284 ,  G01S19/215 ,  G01S19/246 ,  G01S19/29 ,  G01S19/30 ,  G01S19/37 ,  G06F9/544 ,  G06F12/0223 ,  H04B1/7075 ,  H04B1/7097 ,  H04B1/7107 ,  H04B2201/70715

摘要： A method and system for dynamic memory allocation and sharing in electronic systems. Embodiments include multi-channel signal processing, including continuously receiving multiple channels (207), wherein each channel comprises a discrete signal, and processing the multiple channels in a signal processing component (101) on a time-multiplexed basis. Processing the multiple channels includes configuring the signal processing component for one of a plurality of operational modes, including allocating a memory (201) into areas for storage of types of data, wherein certain areas are accessed by certain signal processing subsystems (213) in certain manners. Configuring includes configuring the signal processing component to operate in different modes concurrently for different channels.

公开(公告)号：EP1277286B1

公开(公告)日：2007-06-13

申请号：EP01924707.1

申请日：2001-04-05

申请人： SiRF Technology, Inc.

发明人： UNDERBRINK, Paul, A.

IPC分类号： H04B1/38

CPC分类号： H03L7/081 ,  G01S19/235 ,  H03L7/1976

摘要： The invention is directed to a personal telecommunications device having both global positioning systems (GPS) and telecommunications provisions which share a common clock source. GPS provisions include a feedback loop for controlling an oscillator that generates a GPS system signal based upon the common clock signal. The feedback loop includes a frequency synthesizer for generating a feedback control signal, a phase comparator for generating a control signal in accordance with the feedback signal and the common clock signal, and a loop filter for processing and outputting the control signal to the oscillator to control the frequency of GPS system signals.

摘要翻译： 本发明针对具有共享公共时钟源的全球定位系统（GPS）和电信设备的个人电信设备。 GPS设备包括用于控制基于公共时钟信号生成GPS系统信号的振荡器的反馈回路。 反馈回路包括用于产生反馈控制信号的频率合成器，用于根据反馈信号和公共时钟信号产生控制信号的相位比较器以及用于处理和输出控制信号给振荡器以控制 GPS系统信号的频率。

公开(公告)号：EP1665272A2

公开(公告)日：2006-06-07

申请号：EP04816809.0

申请日：2004-08-13

申请人： Sirf Technology, Inc.

发明人： UNDERBRINK, Paul, A. ,  FALK, Henry

IPC分类号： G11C19680901

CPC分类号： G01S19/37

摘要： A signal processing system control method and apparatus are described. Various embodiments include a signal processing system with multiple subsystems (411, 413, 415). A method for controlling the signal processing system includes storing channel records in a designated area of shared memory (401). A channel records include channel data which includes one of multiple discrete signals to be processed by multiple subsystems in a time-multiplexed manner. The channel record includes information used by the multiple subsystems to process a channel, including information used to configure the multiple subsystems, information used to allocate the shared memory (401), and information used to communicate between multiple subsystems (411, 413, 415).