公开(公告)号：US20080117100A1

公开(公告)日：2008-05-22

申请号：US11561758

申请日：2006-11-20

申请人： Chi-Shin Wang ,  David Wang ,  Wentao Zhang ,  Jun Mo ,  Lei Dong

发明人： Chi-Shin Wang ,  David Wang ,  Wentao Zhang ,  Jun Mo ,  Lei Dong

IPC分类号： G01S5/14

CPC分类号： G01S19/49 ,  G01S19/40

摘要： The present invention provides methods and systems that enable a mobile navigation receiver to accurately determine its trajectory with non-current ephemeris in stand-alone mode. In an embodiment, the receiver computes the position for the same location using non-current ephemeris and current ephemeris at different time instances. The receiver then determines a position correction by finding the difference between these two computed positions, and applies this correction to the trajectory generated with non-current ephemeris to obtain a more accurate trajectory. In another embodiment, the receiver computes an initial position of the receiver using non-current ephemeris and finds the difference between the computed initial position and an accurate approximation of the initial position. The receiver then shifts the subsequent receiver trajectory computed using non-current ephemeris by the difference to obtain a more accurate trajectory.

摘要翻译： 本发明提供使移动导航接收机能够以独立模式的非当前星历精确地确定其轨迹的方法和系统。 在一个实施例中，接收机使用不同时间的非当前星历和当前星历表计算相同位置的位置。 然后，接收机通过找到这两个计算位置之间的差异来确定位置校正，并将该校正应用于由非当前星历产生的轨迹，以获得更准确的轨迹。 在另一个实施例中，接收机使用非当前星历表计算接收机的初始位置，并且找出所计算的初始位置与初始位置的精确近似之间的差。 然后，接收器将使用非当前星历计算的后续接收器轨迹移动该差，以获得更准确的轨迹。

公开(公告)号：US20070152878A1

公开(公告)日：2007-07-05

申请号：US11324144

申请日：2005-12-29

申请人： Chi-Shin Wang ,  Zongde Qiu ,  Shridhara Kudrethaya ,  Jun Mo

发明人： Chi-Shin Wang ,  Zongde Qiu ,  Shridhara Kudrethaya ,  Jun Mo

IPC分类号： G01S5/14

CPC分类号： G01S19/24 ,  G01S19/246 ,  G01S19/27 ,  G01S19/29 ,  G01S19/34

摘要： The present invention provides GPS receivers capable of tracking very weak GPS signals particularly in an indoor environment without assistance from an external server or a network. In a preferred embodiment, a GPS receiver initially acquires and locks onto GPS satellite signals to compute receiver position outdoors. The GPS receiver then tracks at least one satellite signal indoors to maintain acquisition parameters for quick acquisition of GPS signals. To save power, the receiver automatically goes to the sleep state and periodically wakes up, i.e., powers up, to maintain the at least one satellite signal tracking. During the wakeup state, the receiver collects ephemeris data from the at least one satellite signal when the ephemeris data needs to be updated for quick acquisition of GPS signals.

摘要翻译： 本发明提供了能够跟踪非常弱的GPS信号的GPS接收机，特别是在室内环境中，无需外部服务器或网络的协助。 在一个优选实施例中，GPS接收机最初获取并锁定到GPS卫星信号上以在室外计算接收器位置。 GPS接收机然后在室内跟踪至少一个卫星信号，以维持采集参数，以便快速获取GPS信号。 为了节省电力，接收机自动进入睡眠状态并周期性地唤醒，即上电，以维持至少一个卫星信号跟踪。 在唤醒状态期间，当需要更新星历数据以快速获取GPS信号时，接收器从至少一个卫星信号收集星历数据。

公开(公告)号：US06580455B1

公开(公告)日：2003-06-17

申请号：US09073128

申请日：1998-05-05

申请人： Chi-Shin Wang ,  Zhimin Zhou ,  Li-Yen Shih

发明人： Chi-Shin Wang ,  Zhimin Zhou ,  Li-Yen Shih

IPC分类号： H04N314

CPC分类号： H04N5/363 ,  H04N5/365

摘要： An improved image sensing array including a semiconductive substrate having formed therein an array of discrete substrate areas organized in rows and columns. The array of areas is segmented into a plurality of blocks, each including a sub-array of the areas. At least one of the rows of each block has at least one reader cell formed therein, and the remaining rows of the block have photosensor cells formed in each area thereof. Each column of each block forms a column block including a plurality of photosensor cells, and a node line communicatively coupling each photosensor cell of the column block to an associated reader cell. A row address line is coupled to each photosensor cell in a particular row of the array. A column bit line is coupled to each reader cell in a particular column of the array. A block select line is coupled to each reader cell in a particular row of the array containing reader cells. In response to row select and block select inputs to the row address lines and the block select lines respectively, image data captured by each the photosensor cell is read out to a corresponding column-bit line through an associated reader cell for input to an output processing means. The output processing means may include a device for interpolating the data state of the image data supplanted by each reader cell of the array.

摘要翻译： 一种改进的图像感测阵列，包括其中形成有以行和列组织的离散衬底区域的阵列的半导体衬底。 区域阵列被分割成多个块，每个块包括区域的子阵列。 每个块的行中的至少一行具有形成在其中的至少一个读取器单元，并且该块的其余行在其每个区域中形成有光电传感器单元。 每个块的每列形成包括多个光电传感器单元的列块，以及将列块的每个光电传感器单元通信耦合到相关读取器单元的节点线。 行地址线耦合到阵列的特定行中的每个光电传感器单元。 列位线耦合到阵列的特定列中的每个读取器单元。 块选择线耦合到包含读取器单元的阵列的特定行中的每个读取器单元。 响应于对行地址线和块选择线的行选择和块选择输入，每个光电传感器单元捕获的图像数据通过相关联的读取器单元读出到对应的列位线，以输入到输出处理 手段。 输出处理装置可以包括用于内插由阵列的每个读取器单元取代的图像数据的数据状态的装置。

公开(公告)号：US4152715A

公开(公告)日：1979-05-01

申请号：US855514

申请日：1977-11-28

申请人： Chi-Shin Wang

发明人： Chi-Shin Wang

IPC分类号： H01L21/8234 ,  H01L21/8248 ,  H01L21/8249 ,  H01L27/148 ,  H01L27/10

CPC分类号： H01L27/14875 ,  H01L21/823406 ,  H01L21/8248 ,  H01L21/8249

摘要： CCDs and bipolar transistors are formed together on a silicon chip. For n channel CCDs and npn transistors, only a single extra diffusion is necessary in addition to the diffusions used for the CCDs alone. This step is diffusion of n.sup.+ collector wells, and is performed before CCD channel stop-transistor base diffusion. For p channel CCDs and pnp transistors, two extra diffusions are necessary and are: diffusion of a p collector wells, and diffusion of n.sup.+ base contracts; the extra diffusions may both be performed before CCD channel stop-transistor base diffusion, or the n.sup.+ base contact diffusion may be performed thereafter.

摘要翻译： CCD和双极晶体管一起形成在硅芯片上。 对于n沟道CCD和npn晶体管，除了仅用于CCD的扩散之外，仅需要单个额外的扩散。 该步骤是n +集电极阱的扩散，并在CCD通道停止晶体管基极扩散之前进行。 对于p沟道CCD和pnp晶体管，需要两个额外的扩散，并且是：p个收集器阱的扩散以及n +基底合约的扩散; 可以在CCD通道停止 - 晶体管基极扩散之前执行额外的扩散，或者可以在其后执行n +基极接触扩散。

公开(公告)号：US07439907B2

公开(公告)日：2008-10-21

申请号：US11561758

申请日：2006-11-20

申请人： Chi-Shin Wang ,  David Wang ,  Wentao Zhang ,  Jun Mo ,  Lei Dong

发明人： Chi-Shin Wang ,  David Wang ,  Wentao Zhang ,  Jun Mo ,  Lei Dong

IPC分类号： G01S3/14

CPC分类号： G01S19/49 ,  G01S19/40

摘要： The present invention provides methods and systems that enable a mobile navigation receiver to accurately determine its trajectory with non-current ephemeris in stand-alone mode. In an embodiment, the receiver computes the position for the same location using non-current ephemeris and current ephemeris at different time instances. The receiver then determines a position correction by finding the difference between these two computed positions, and applies this correction to the trajectory generated with non-current ephemeris to obtain a more accurate trajectory. In another embodiment, the receiver computes an initial position of the receiver using non-current ephemeris and finds the difference between the computed initial position and an accurate approximation of the initial position. The receiver then shifts the subsequent receiver trajectory computed using non-current ephemeris by the difference to obtain a more accurate trajectory.

摘要翻译： 本发明提供使移动导航接收机能够以独立模式的非当前星历精确地确定其轨迹的方法和系统。 在一个实施例中，接收机使用不同时间的非当前星历和当前星历表计算相同位置的位置。 然后，接收机通过找到这两个计算位置之间的差异来确定位置校正，并将该校正应用于由非当前星历产生的轨迹，以获得更准确的轨迹。 在另一个实施例中，接收机使用非当前星历表计算接收机的初始位置，并且找出所计算的初始位置与初始位置的精确近似之间的差。 然后，接收器将使用非当前星历计算的后续接收器轨迹移动该差，以获得更准确的轨迹。

公开(公告)号：US20080117103A1

公开(公告)日：2008-05-22

申请号：US11561749

申请日：2006-11-20

申请人： Chi-Shin Wang ,  David Wang ,  Zongde Qiu

发明人： Chi-Shin Wang ,  David Wang ,  Zongde Qiu

IPC分类号： G01S5/14 ,  G01S1/00

CPC分类号： G01S19/34 ,  G01S19/258

摘要： The present invention provides methods and systems for keeping the ephemeris in a navigational receiver current to achieve fast TTFF without the need for connecting to an aiding network or remote server. In an embodiment, the receiver keeps the ephemeris current by downloading the ephemeris in the background. In the preferred embodiment, the receiver uses a background sleep/wake up process to download current ephemeris with minimal power drain. In this embodiment, the receiver alternates between a sleep mode and a wake up mode. During the wake up mode, the receiver attempts to download current ephemeris. The receiver then goes back to the sleep mode until the next wake up to conserve power. The receiver may wake up from the sleep mode to download the ephemeris when the stored ephemeris is no longer current or the ephemeris broadcasted from a satellite has been updated or based on receiver usage patterns.

摘要翻译： 本发明提供了用于将星历保持在导航接收机当中以在不需要连接到辅助网络或远程服务器的情况下实现快速TTFF的方法和系统。 在一个实施例中，接收器通过在背景中下载星历来保持星历当前的状态。 在优选实施例中，接收机使用背景睡眠/唤醒过程以最小的功率耗散来下载当前星历。 在该实施例中，接收器在睡眠模式和唤醒模式之间交替显示。 在唤醒模式下，接收端尝试下载当前星历。 接收器然后回到睡眠模式，直到下一次唤醒以节省电量。 当存储的星历不再是当前的或者从卫星广播的星历表已被更新或基于接收机使用模式时，接收机可以从休眠模式唤醒以下载星历。