利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

77 条记录 (耗时 0.032 秒)

    Determining frequency errors in a multi-carrier receiver
    1.
    发明授权
    Determining frequency errors in a multi-carrier receiver 有权
    确定多载波接收机中的频率误差

    公开(公告)号：US09413579B2

    公开(公告)日：2016-08-09

    申请号：US14110875

    申请日：2012-03-14

    申请人： Thomas Nilsson ,  Jianjun Chen ,  Amit Singh

    发明人： Thomas Nilsson ,  Jianjun Chen ,  Amit Singh

    IPC分类号： H04B1/10 ,  H04L27/26 ,  H04L25/02 ,  H04L27/00

    CPC分类号： H04L27/2657 ,  H04B1/1081 ,  H04L25/0222 ,  H04L27/0014 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2695

    摘要： Individual multipath components of digital data symbols sent from a transmitter on at least two carrier frequencies generated from a common clock signal, are received (401) with individual delays and processed by a receiver unit having at least two fingers. Successive channel estimates are determined (402) from received symbols for each finger and each carrier, and an estimated frequency error is determined (404) for each finger and each carrier. A linear equation system is constructed (405), in which each determined frequency error is expressed as a function of a first variable indicative of frequency drift and a second variable indicative of frequency error caused by Doppler effect. The equation system is solved (406) to provide a solution with estimates of the first and second variables for each finger, and an estimated frequency drift is determined (407) from the solution and utilized (408) as feedback signal for adjusting receiver clock frequency.

    摘要翻译： 在从公共时钟信号产生的至少两个载波频率上从发射机发送的数字数据符号的单个多径分量被接收（401）并具有单独的延迟，并由具有至少两个手指的接收机单元进行处理。 从每个手指和每个载体的接收符号确定连续信道估计（402），并且为每个手指和每个载波确定估计的频率误差（404）。 构造线性方程组（405），其中每个确定的频率误差被表示为指示频率漂移的第一变量的函数，以及指示由多普勒效应引起的频率误差的第二变量。 求解方程系统（406）以提供每个手指的第一和第二变量的估计的解，并且从解中确定估计的频率漂移（407），并将其用作用于调整接收机时钟频率的反馈信号（408） 。

    Determining Frequency Errors in a Multi-Carrier Receiver
    2.
    发明申请
    Determining Frequency Errors in a Multi-Carrier Receiver 有权
    确定多载波接收机中的频率误差

    公开(公告)号：US20150358192A1

    公开(公告)日：2015-12-10

    申请号：US14110875

    申请日：2012-03-14

    申请人： Thomas Nilsson ,  Jianjun Chen ,  Amit Singh

    发明人： Thomas Nilsson ,  Jianjun Chen ,  Amit Singh

    IPC分类号： H04L27/26 ,  H04B1/10

    CPC分类号： H04L27/2657 ,  H04B1/1081 ,  H04L25/0222 ,  H04L27/0014 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2695

    摘要： Individual multipath components of digital data symbols sent from a transmitter on at least two carrier frequencies generated from a common clock signal, are received (401) with individual delays and processed by a receiver unit having at least two fingers. Successive channel estimates are determined (402) from received symbols for each finger and each carrier, and an estimated frequency error is determined (404) for each finger and each carrier. A linear equation system is constructed (405), in which each determined frequency error is expressed as a function of a first variable indicative of frequency drift and a second variable indicative of frequency error caused by Doppler effect. The equation system is solved (406) to provide a solution with estimates of the first and second variables for each finger, and an estimated frequency drift is determined (407) from the solution and utilized (408) as feedback signal for adjusting receiver clock frequency.

    摘要翻译： 在从公共时钟信号产生的至少两个载波频率上从发射机发送的数字数据符号的单个多径分量被接收（401）并具有单独的延迟，并由具有至少两个手指的接收机单元进行处理。 从每个手指和每个载体的接收符号确定连续信道估计（402），并且为每个手指和每个载波确定估计的频率误差（404）。 构造线性方程组（405），其中每个确定的频率误差被表示为指示频率漂移的第一变量的函数，以及指示由多普勒效应引起的频率误差的第二变量。 求解方程系统（406）以提供每个手指的第一和第二变量的估计的解，并且从解中确定估计的频率漂移（407），并将其用作用于调整接收机时钟频率的反馈信号（408） 。

    Frequency offset compensation for multi-carrier communication systems
    3.
    发明授权
    Frequency offset compensation for multi-carrier communication systems 有权
    多载波通信系统的频偏补偿

    公开(公告)号：US08861657B2

    公开(公告)日：2014-10-14

    申请号：US13695885

    申请日：2011-05-06

    申请人： Thomas Nilsson ,  Amit Singh

    发明人： Thomas Nilsson ,  Amit Singh

    IPC分类号： H03D1/00 ,  H04L27/26

    CPC分类号： H04L27/2647 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2695

    摘要： The present disclosure provides a frequency offset compensation technique for use by a multi-carrier receiver. Compared with legacy receiver designs, the technique introduces a new function which correlates various frequency offsets of the different carriers involved in multi-carrier signal transmission and reception. This new function can be coupled with an Automatic Frequency Control (AFC) function which can then utilize the correlation information provided by the new function to achieve significantly better frequency error/offset estimation when the carriers are correlated. As a method aspect, the frequency offset compensation technique comprises the steps of receiving signals modulated on a plurality of carrier frequencies, deriving a frequency offset for each carrier frequency to thereby provide a plurality of frequency offsets corresponding to the plurality of carrier frequencies; correlating these plurality of frequency offsets; and controlling compensation of the frequency offsets based on a result of the correlation.

    摘要翻译： 本公开提供了一种用于多载波接收机的频偏补偿技术。 与传统接收机设计相比，该技术引入了一种新功能，其将多载波信号传输和接收中涉及的不同载波的各种频率偏移相关联。 该新功能可以与自动频率控制（AFC）功能耦合，然后可以利用新功能提供的相关信息，在载波相关时实现明显更好的频率误差/偏移估计。 作为方法方面，频偏补偿技术包括以下步骤：接收在多个载波频率上调制的信号，导出每个载波频率的频率偏移，从而提供对应于多个载波频率的多个频率偏移; 将这些多个频率偏移相关联; 并根据相关性的结果控制频偏的补偿。

    Frequency Offset Compensation for Multi-carrier Communication Systems
    4.
    发明申请
    Frequency Offset Compensation for Multi-carrier Communication Systems 有权
    多载波通信系统频偏补偿

    公开(公告)号：US20130202069A1

    公开(公告)日：2013-08-08

    申请号：US13695885

    申请日：2011-05-06

    申请人： Thomas Nilsson ,  Amit Singh

    发明人： Thomas Nilsson ,  Amit Singh

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2647 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2695

    摘要： The present disclosure provides a frequency offset compensation technique for use by a multi-carrier receiver. Compared with legacy receiver designs, the technique introduces a new function which correlates various frequency offsets of the different carriers involved in multi-carrier signal transmission and reception. This new function can be coupled with an Automatic Frequency Control (AFC) function which can then utilize the correlation information provided by the new function to achieve significantly better frequency error/offset estimation when the carriers are correlated. As a method aspect, the frequency offset compensation technique comprises the steps of receiving signals modulated on a plurality of carrier frequencies, deriving a frequency offset for each carrier frequency to thereby provide a plurality of frequency offsets corresponding to the plurality of carrier frequencies; correlating these plurality of frequency offsets; and controlling compensation of the frequency offsets based on a result of the correlation.

    摘要翻译： 本公开提供了一种用于多载波接收机的频偏补偿技术。 与传统接收机设计相比，该技术引入了一种新功能，其将多载波信号传输和接收中涉及的不同载波的各种频率偏移相关联。 该新功能可以与自动频率控制（AFC）功能耦合，然后可以利用新功能提供的相关信息，在载波相关时实现明显更好的频率误差/偏移估计。 作为方法方面，频偏补偿技术包括以下步骤：接收在多个载波频率上调制的信号，导出每个载波频率的频率偏移，从而提供对应于多个载波频率的多个频率偏移; 将这些多个频率偏移相关联; 并根据相关性的结果控制频偏的补偿。

    Optical waveguide fabrication process
    5.
    发明授权
    Optical waveguide fabrication process 有权

    公开(公告)号：US11886001B2

    公开(公告)日：2024-01-30

    申请号：US16723679

    申请日：2019-12-20

    申请人： Amit Singh ,  David G. Fliszar

    发明人： Amit Singh ,  David G. Fliszar

    IPC分类号： G02B6/10

    CPC分类号： G02B6/10

    摘要： Methods of fabricating a waveguide module are presented that include the steps of providing a glass substrate having first and second substantially planar parallel surfaces and comprising one or more cells in a first arrangement and singulating the glass substrate to produce one or more singulated cells. Singulated cells are treated with a chemical agent, laminated to a carrier substrate, processed, and delaminated from the carrier wafer and optionally subjected to further processing.

    ANTENNA IMPLEMENTATION EMBEDDED IN OPTICAL WAVEGUIDE MODULE
    6.
    发明申请
    ANTENNA IMPLEMENTATION EMBEDDED IN OPTICAL WAVEGUIDE MODULE 有权

    公开(公告)号：US20220121043A1

    公开(公告)日：2022-04-21

    申请号：US17564023

    申请日：2021-12-28

    申请人： Ugur Olgun ,  Amit Singh

    发明人： Ugur Olgun ,  Amit Singh

    IPC分类号： G02C11/00 ,  H01Q1/27 ,  H01Q1/40 ,  G02C7/08 ,  G02B27/01 ,  H01Q1/44

    摘要： Eyewear including a see-through display including an optical waveguide module and one or more integrated antennas. In one example, the antenna is disposed on one of the non-active waveguide substrates, which non-active waveguide substrates are used as encapsulants to protect the waveguide active layer from environmental factors and do not have an active optical function in the waveguide operation. In another example, the antenna is disposed on one of the active waveguide substrate surfaces opposite another active waveguide substrate. As a result, there is a large lee-way available in patterning desired antenna shapes, length, and area on these surfaces using optically transparent, high conductivity materials. The antenna is not subject to some design constraints and compromises.

    Three-dimensional puzzle containing moveable elements
    7.
    发明授权
    Three-dimensional puzzle containing moveable elements 有权

    公开(公告)号：US11130048B2

    公开(公告)日：2021-09-28

    申请号：US16577155

    申请日：2019-09-20

    申请人： Amit Singh ,  Robert Douglas Stewart

    发明人： Amit Singh ,  Robert Douglas Stewart

    IPC分类号： A63F9/12 ,  A63F11/00

    摘要： Systems, devices, and methods including one or more code rings, each code ring comprising one or more sides on an outer surface and one or more code ring alignment indentations on an inner surface; and one or more inner combination rings, each inner combination ring comprising one or more inner combination ring alignment protrusions on an outer surface and a combination indentation on an inner surface; where each of the one or more code ring alignment indentations receive each of the one or more inner combination ring alignment protrusions, where each inner combination ring may be removable and rotatable relative to each code ring of the one or more code rings, and where the combination indentation may be proximate an unlocked side of each of the one or more code rings.

    Methods and systems for defining a form navigational structure
    9.
    发明授权
    Methods and systems for defining a form navigational structure 有权
    用于定义表单导航结构的方法和系统

    公开(公告)号：US08347203B1

    公开(公告)日：2013-01-01

    申请号：US11252566

    申请日：2005-10-19

    申请人： Edy Setiawan ,  Amit Singh ,  Fariborz Ebrahimi

    发明人： Edy Setiawan ,  Amit Singh ,  Fariborz Ebrahimi

    IPC分类号： G06F17/00

    CPC分类号： G06F17/3048 ,  G06F8/20

    摘要： Systems and methods for defining a form navigational structure associated with at least one node in a process flow may comprise selecting a node form for the at least one node in the process flow, the node form identifying a plurality of displayable forms. Furthermore, the systems and methods may include defining a plurality of node steps for the node, each node step corresponding to a displayable screen associated with a subset of the plurality of displayable forms. Moreover, the systems and methods may include establishing a hierarchical tree structure associating the plurality of node steps, branches in the hierarchical tree structure having associated validation rules.

    摘要翻译： 用于定义与过程流程中的至少一个节点相关联的表单导航结构的系统和方法可以包括为进程流中的至少一个节点选择节点表单，该节点表单标识多个可显示形式。 此外，系统和方法可以包括为节点定义多个节点步骤，每个节点步骤对应于与多个可显示形式的子集相关联的可显示屏幕。 此外，系统和方法可以包括建立将多个节点步骤相关联的分层树结构，具有相关联的验证规则的分层树结构中的分支。