公开(公告)号：USRE40111E1

公开(公告)日：2008-02-26

申请号：US09952000

申请日：2001-09-14

Applicant: H. Britton Sanderford ,  Robert E. Rouquette

Inventor： H. Britton Sanderford ,  Robert E. Rouquette

IPC: H04B1/707 ,  H04L7/00 ,  H04J3/06 ,  G01V3/00 ,  G05B23/02

CPC classification number: H04B1/708 ,  G08B25/10 ,  H04B1/7075 ,  H04B1/70756 ,  H04B1/70757 ,  H04B1/7077 ,  H04B2201/70715

Abstract: A remote power meter monitoring system using spread spectrum transmitters, fast frequency shift keying, spread spectrum receivers and a computer. The spread spectrum transmitter uses a chip code generator, preamble register, address register data register and oscillator coupled to a microprocessor to transmit information in a direct sequence spread spectrum signal. The spread spectrum receiver acquires synchronization of the spread spectrum signal using a microprocessor to despread and detect the transmitted information, which relates to data from a power meter.

Abstract translation: 使用扩频发射机，快速频移键控，扩频接收机和计算机的远程功率计监控系统。 扩频发射机使用芯片码发生器，前导码寄存器，地址寄存器数据寄存器和耦合到微处理器的振荡器以直接序列扩频信号传输信息。 扩频接收机使用微处理器获取扩频信号的同步，对与功率计的数据有关的发送信息进行解扩和检测。

公开(公告)号：US20080043868A1

公开(公告)日：2008-02-21

申请号：US11875925

申请日：2007-10-21

Applicant: Kamilo Feher

Inventor： Kamilo Feher

IPC: H04L27/28

CPC classification number: H04L27/2602 ,  A61B5/0015 ,  A61B5/0022 ,  A61B5/01 ,  A61B5/024 ,  A61B5/14532 ,  G06F19/00 ,  G16H10/60 ,  G16H15/00 ,  H04B1/1036 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B7/04 ,  H04B7/18504 ,  H04B7/2628 ,  H04B2201/70715 ,  H04B2201/70716 ,  H04J11/00 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/1453 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/2627 ,  H04L27/2649 ,  H04M7/006 ,  H04W4/023 ,  H04W4/025 ,  H04W4/90 ,  H04W12/06 ,  H04W64/00 ,  H04W88/02 ,  H04W88/06 ,  Y02A90/26

Abstract: Internet, wireless and wired multimode systems. Processing, modulating, transmitting and receiving internet provided and location finder signals. Cross-correlator, transmit baseband filter and modulator for cross-correlating, filtering and modulating in-phase and quadrature-phase signal, and providing modulated signal to a transmitter. Orthogonal Frequency Division Multiplex (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA), Wi-Fi, spread spectrum, Code Division Multiple Access (CDMA), time division multiplexed (TDM), Time Division Multiple Access (TDMA) and Global Mobile System (GSM) processors and baseband filters for providing OFDM, OFDMA, TDM, TDMA, Bluetooth, spread spectrum CDMA and GSM system signals to transmitter and diversity receiver. Diversity receiver systems. Demodulator for demodulating, filtering and processing diversity system received signal. Receive baseband filter is intentionally mismatched to the transmit baseband filter. Receiver and demodulator baseband filter provides received baseband mis-match filtered cross-correlated in-phase and quadrature-phase signal.

Abstract translation: 互联网，无线和有线多模系统。 处理，调制，发送和接收互联网和定位器信号。 交叉相关器，发射基带滤波器和调制器，用于互相关，滤波和调制同相和正交相位信号，并向发射机提供调制信号。 正交频分复用（OFDM）或正交频分多址（OFDMA），Wi-Fi，扩频，码分多址（CDMA），时分复用（TDM），时分多址（TDMA）和全球移动系统 （GSM）处理器和基带滤波器，用于向发射机和分集接收机提供OFDM，OFDMA，TDM，TDMA，蓝牙，扩频CDMA和GSM系统信号。 分集接收机系统。 用于解调，滤波和处理分集系统接收信号的解调器。 接收基带滤波器有意地与发射基带滤波器不匹配。 接收机和解调器基带滤波器提供接收的基带误匹配滤波的交叉相位同相和正交相位信号。

公开(公告)号：US20080001817A1

公开(公告)日：2008-01-03

申请号：US11676502

申请日：2007-02-19

Applicant: Gregory Turetzky ,  Charles Norman ,  Henry Falk

Inventor： Gregory Turetzky ,  Charles Norman ,  Henry Falk

IPC: H04B7/185 ,  G01S5/14

CPC classification number: G01S19/37 ,  G01S5/0027 ,  G01S5/0036 ,  G01S19/09 ,  G01S19/21 ,  G01S19/25 ,  G01S19/26 ,  G01S19/30 ,  H04B1/7075 ,  H04B1/70755 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7097 ,  H04B2201/70715

Abstract: The present invention discloses methods, apparatuses, and systems for eliminating auto- and cross-correlation in weak signal CDMA systems, such as GPS systems. The invention uses parallel data paths that allow standard correlation of signals in parallel with verification of the lock signal to determine whether the system has locked onto the proper signal within the scanned signal window. The invention can be made with multiple CPUs, a single CPU with dual input modes, on multiple IC chips, or as a single IC chip solution for small, low cost reception, downconversion, correlation, and verification systems.

Abstract translation: 本发明公开了用于消除诸如GPS系统的弱信号CDMA系统中的自相关和互相关的方法，装置和系统。 本发明使用允许信号与锁定信号的验证并行的标准相关性的并行数据路径，以确定系统是否锁定在扫描的信号窗口内的适当信号上。 本发明可以由多个CPU，具有双输入模式的单个CPU，多个IC芯片，或作为用于小型，低成本接收，下变频，相关和验证系统的单个IC芯片解决方案制成。

公开(公告)号：US20070286265A1

公开(公告)日：2007-12-13

申请号：US11587109

申请日：2005-04-21

Applicant: Harri Valio ,  Samuli Pietila

Inventor： Harri Valio ,  Samuli Pietila

IPC: H04B1/00

CPC classification number: H04B1/7077 ,  H04B2201/70707 ,  H04B2201/70715

Abstract: The present invention relates to a receiver for receiving a spread spectrum modulated signal, comprising a sampler for forming samples of a received signal, at least one reference code block for generating at least first and second reference codes, and a correlation block. The correlation block forms first and second reference code parts from at least one reference code, and correlates the first reference code part with the sample string to form first correlation part results, and correlates the second reference code part with the sample string to form second correlation part results, wherein the correlations are arranged to be performed at different times and by using the same sample string. The invention also relates to an electronic device comprising a receiver, a module to be used with a receiver, a system comprising a transmitter and a receiver for receiving the transmitted signal, a method and a computer software product.

Abstract translation: 本发明涉及一种用于接收扩频调制信号的接收机，包括用于形成接收信号样本的采样器，至少一个用于产生至少第一和第二参考码的参考码块和相关块。 所述相关块从至少一个参考码形成第一和第二参考码部分，并且将第一参考码部分与样本串相关联以形成第一相关部分结果，并将第二参考码部分与样本串相关联以形成第二相关 部分结果，其中相关性被布置为在不同时间执行并且通过使用相同的样本串。 本发明还涉及一种电子设备，包括接收机，与接收机一起使用的模块，包括用于接收发射信号的发射机和接收机的系统，方法和计算机软件产品。

公开(公告)号：US07305021B2

公开(公告)日：2007-12-04

申请号：US11316536

申请日：2005-12-22

Applicant: Brent M. Ledvina ,  Mark L. Psiaki ,  Steven P. Powell ,  Paul M. Kintner, Jr.

Inventor： Brent M. Ledvina ,  Mark L. Psiaki ,  Steven P. Powell ,  Paul M. Kintner, Jr.

IPC: H04K1/10

CPC classification number: G01S19/37 ,  G01S19/30 ,  H04B1/7075 ,  H04B1/7085 ,  H04B1/7095 ,  H04B2201/70715

Abstract: A real-time software receiver that executes on a general purpose processor. The software receiver includes data acquisition and correlator modules that perform, in place of hardware correlation, baseband mixing and PRN code correlation using bit-wise parallelism.

Abstract translation: 在通用处理器上执行的实时软件接收器。 该软件接收机包括数据采集和相关器模块，它们使用逐位并行执行代替硬件相关的基带混合和PRN码相关。

公开(公告)号：US07286592B2

公开(公告)日：2007-10-23

申请号：US10786569

申请日：2004-02-24

Applicant: Samuli Pietilä ,  Harri Valio

Inventor： Samuli Pietilä ,  Harri Valio

IPC: H04B1/69

CPC classification number: G01S19/30 ,  G01S19/33 ,  G01S19/37 ,  H04B1/707 ,  H04B2201/70707 ,  H04B2201/70715 ,  H04J13/10

Abstract: The present invention provides a method for a flexible multimode operation of spread spectrum receivers, e.g., global navigation satellite system (GNSS) receivers, using a shared circuitry hardware configuration of the receiver for processing of different types of code division multiple access (CDMA) signals. According to said method the receiver utilizes shared channel circuitry to receive signals of different CDMA types providing a flexible multimode operation. The present invention provides a way to select the received signal type for each channel by replacing the dedicated channels with multimode channels suitable to multiple types of receiver signals. The multimode receiver is more flexible to operate in varying reception conditions. By utilizing shared channel circuitry the hardware size is kept small.

Abstract translation: 本发明提供了一种使用接收机的共享电路硬件配置来处理不同类型的码分多址（CDMA）信号的扩频接收机（例如，全球导航卫星系统（GNSS））接收机的灵活多模操作的方法 。 根据所述方法，接收机利用共享信道电路来接收提供灵活多模操作的不同CDMA类型的信号。 本发明提供一种通过用适于多种类型的接收机信号的多模信道替换专用信道来选择每个信道的接收信号类型的方法。 多模接收机在变化的接收条件下操作更灵活。 通过利用共享信道电路，硬件尺寸保持较小。

公开(公告)号：US07269424B2

公开(公告)日：2007-09-11

申请号：US10065413

申请日：2002-10-16

Applicant: William O. Camp, Jr.

Inventor： William O. Camp, Jr.

IPC: H04Q7/20

CPC classification number: H04B1/70754 ,  G01S5/0221 ,  G01S5/14 ,  H04B1/62 ,  H04B2201/70715

Abstract: Mobile terminal implementing a ranging signal receiver and method. Means are provided to incorporate ranging signal reception capability into a mobile terminal (such as a UMTS terminal) notwithstanding the fact that the ranging signal has a bandwidth that is wider than the bandpass of filtering for native signals within the terminal. A ranging signal receiving subsystem receives broadband signals that comprise synchronization bursts, which are equally spaced in time, such as from digital television stations. A common filter will have a bandpass that it is smaller than the bandwidth of the ranging signals. However, the correlation subsystem of the mobile terminal enables recovery of synchronization bursts by correlating the ranging signal with a known sequence that has been predistorted to account for the bandpass of the common filter.

Abstract translation: 移动终端实现测距信号接收机和方法。 提供了将测距信号接收能力合并到移动终端（例如UMTS终端）中的手段，尽管测距信号具有比终端内的本机信号的滤波带宽更宽的带宽。 测距信号接收子系统接收宽带信号，该宽带信号包括时间上相等间隔的同步脉冲串，例如来自数字电视台。 公共滤波器将具有小于测距信号带宽的带通。 然而，移动终端的相关子系统通过将测距信号与已经被预失真的已知序列相关联以考虑到公共滤波器的带通，来恢复同步脉冲串。

公开(公告)号：US20070207803A1

公开(公告)日：2007-09-06

申请号：US11676501

申请日：2007-02-19

Applicant: Gregory Turetzky ,  Charles Norman ,  Henry Falk

Inventor： Gregory Turetzky ,  Charles Norman ,  Henry Falk

IPC: H04Q7/20

CPC classification number: G01S19/37 ,  G01S5/0027 ,  G01S5/0036 ,  G01S19/09 ,  G01S19/21 ,  G01S19/25 ,  G01S19/26 ,  G01S19/30 ,  H04B1/7075 ,  H04B1/70755 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7097 ,  H04B2201/70715

Abstract: The present invention discloses methods, apparatuses, and systems for eliminating auto- and cross-correlation in weak signal CDMA systems, such as GPS systems. The invention uses parallel data paths that allow standard correlation of signals in parallel with verification of the lock signal to determine whether the system has locked onto the proper signal within the scanned signal window, The invention can be made with multiple CPUs, a single CPU with dual input modes, on multiple IC chips, or as a single IC chip solution for small, low cost reception, downconversion, correlation, and verification systems.

Abstract translation: 本发明公开了用于消除诸如GPS系统的弱信号CDMA系统中的自相关和互相关的方法，装置和系统。 本发明使用并行数据路径，允许信号与锁定信号的验证并行地进行标准相关，以确定系统是否锁定在扫描信号窗口内的适当信号上。本发明可以由多个CPU，单个CPU 双重输入模式，多个IC芯片，或作为单个IC芯片解决方案，用于小型，低成本接收，下变频，相关和验证系统。

公开(公告)号：US20070201537A1

公开(公告)日：2007-08-30

申请号：US11680851

申请日：2007-03-01

Applicant: Wim DE WILDE ,  Jean-Marie SLEEWAEGEN ,  Gonzalo SECO GRANADOS

Inventor： Wim DE WILDE ,  Jean-Marie SLEEWAEGEN ,  Gonzalo SECO GRANADOS

IPC: H04B1/00

CPC classification number: H04L27/06 ,  G01S19/30 ,  H04B1/7075 ,  H04B2201/70715 ,  H04L27/22 ,  H04L2027/0057

Abstract: A method for demodulating alternate binary offset carrier signals includes at least two subcarriers, each having an in-phase and a quadrature component modulated by pseudo-random codes. The quadrature components are modulated by dataless pilot signals. The in-phase components are modulated by data signals. The method includes converting the alternate binary offset carrier signals into an intermediate frequency, band-pass filtering the converted signals and sampling the filtered signals, generating a carrier phase and carrier phase-rotating the sampled signals by the carrier phase, correlating the rotated sampled signals, and generating, for each subcarrier, pseudo-random binary codes and a subcarrier phase, which are used to correlate the rotated sampled signals.

Abstract translation: 用于解调替代二进制偏移载波信号的方法包括至少两个子载波，每个子载波具有由伪随机码调制的同相和正交分量。 正交分量由无数据导频信号调制。 同相分量由数据信号调制。 该方法包括将交替的二进制偏移载波信号转换成中频，对转换后的信号进行带通滤波并对滤波后的信号进行采样，产生载波相位，并通过载波相位对采样的信号进行相位旋转，将旋转后的采样信号 并且为每个子载波生成伪随机二进制码和子载波相位，其用于使旋转的采样信号相关。

公开(公告)号：US20070147483A1

公开(公告)日：2007-06-28

申请号：US10650866

申请日：2003-08-28

Applicant: Kai Tang

Inventor： Kai Tang

IPC: H04B1/00

CPC classification number: H04L7/007 ,  G01S19/24 ,  H04B1/7075 ,  H04B1/70755 ,  H04B1/70775 ,  H04B2201/70715

Abstract: Systems and techniques are disclosed relating to communications. The systems and techniques involve the synchronizing to a signal having a plurality of bits by computing energy for a plurality of different phase offset signal portions, generating a ratio from the signal portion with the highest computed energy and the signal portion with the second highest computed energy, and comparing the ratio to a threshold to determine whether the signal portion with the highest computed energy can be used to determine bit timing.

Abstract translation: 公开了与通信相关的系统和技术。 这些系统和技术涉及通过针对多个不同的相位偏移信号部分计算能量来产生与具有最高计算能量的信号部分的比率以及具有第二高计算能量的信号部分的具有多个位的信号的同步 并且将该比率与阈值进行比较，以确定具有最高计算能量的信号部分是否可以用于确定比特定时。