公开(公告)号：US07831893B2

公开(公告)日：2010-11-09

申请号：US11625300

申请日：2007-01-20

Applicant: James A. Norris ,  John W. Nieto

Inventor： James A. Norris ,  John W. Nieto

IPC: H03M13/03

CPC classification number: H03M13/4169 ,  H03M13/3955 ,  H03M13/41 ,  H04L1/006 ,  H04L25/03229 ,  H04L25/03235 ,  H04L25/03834 ,  H04L27/10 ,  H04L27/201 ,  H04L27/3405

Abstract: A programmable decoder includes at least one programming input for a plurality of programmable, reduced state trellis parameters. A programmable device is connected to the at least one programming input and implements a Reduced-State Sequence Estimation (RSSE) decoder comprising at least one reduced-state trellis structure based upon the plurality of programmable reduced-state trellis parameters, including one of at least the number of super-states, the number of full-states, the number of branches per super-state, a reverse super-state trellis table, a decoder super-state survivor as a full-state, a forward full-state table, a full-state to super-state mapping table, a decoder super-state path metric and decoder super-state traceback array.

Abstract translation: 可编程解码器包括至少一个编程输入用于多个可编程的，缩小的状态格状参数。 可编程设备连接到所述至少一个编程输入，并且实现基于所述多个可编程缩减状态网格参数的包括至少一个简化状态网格结构的简化状态序列估计（RSSE）解码器，所述缩减状态网格结构至少包括 超状态数，全状态数，每超级状态的分支数，反超状态网格表，解码器超状态幸存者为全状态，前向全状态表， 全状态到超状态映射表，解码器超状态路径度量和解码器超状态追溯阵列。

公开(公告)号：US20100202499A1

公开(公告)日：2010-08-12

申请号：US12572163

申请日：2009-10-01

Applicant: Jr-I Lee ,  Yen-Lin Huang ,  Yen-Tso Chen ,  Chia-Jung Chang

Inventor： Jr-I Lee ,  Yen-Lin Huang ,  Yen-Tso Chen ,  Chia-Jung Chang

IPC: H04B1/38 ,  H04L27/00 ,  H04L25/06

CPC classification number: H04L27/201 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/48091 ,  H01L2224/49109 ,  H01L2224/49113 ,  H01L2924/00014 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H03D7/1441 ,  H03D7/1483 ,  H03D2200/0025 ,  H03D2200/0043 ,  H03D2200/0047 ,  H03F1/223 ,  H03F1/565 ,  H03F3/195 ,  H03F3/45183 ,  H03F3/45892 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/318 ,  H03F2200/375 ,  H03F2200/387 ,  H03F2203/45638 ,  H03F2203/45641 ,  H03F2203/45644 ,  H03F2203/45646 ,  H03F2203/45652 ,  H03F2203/45702 ,  H03F2203/45726 ,  H03F2203/45728 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

Abstract: A differential radio frequency signal transmitter is provided. The differential radio frequency signal transmitter includes an oscillator, a modulator and an amplifier module. The oscillator generates a pair of differential oscillation signals. The modulator generates a pair of differential modulated signals according to an input signal and the pair of differential oscillation signals. The input signal is a digital signal. When the input signal is at a first state, the modulator outputs the pair of differential oscillation signals as the pair of differential modulated signals, and when the input signal is at a second state, the modulator outputs a constant voltage signal as the pair of differential modulated signals. The amplifier module receives and amplifies the pair of differential modulated signals and generates a pair of differential radio frequency signals, accordingly.

Abstract translation: 提供差分射频信号发射机。 差分射频信号发射机包括振荡器，调制器和放大器模块。 振荡器产生一对差分振荡信号。 调制器根据输入信号和差分振荡信号对产生一对差分调制信号。 输入信号是数字信号。 当输入信号处于第一状态时，调制器输出一对差分振荡信号作为一对差分调制信号，当输入信号处于第二状态时，调制器输出一个恒定电压信号作为差分对 调制信号。 放大器模块接收并放大该对差分调制信号，并相应地产生一对差分射频信号。

公开(公告)号：US07561634B2

公开(公告)日：2009-07-14

申请号：US10868430

申请日：2004-06-15

Applicant: James A. Norris ,  John W. Nieto

Inventor： James A. Norris ,  John W. Nieto

IPC: H04L27/00

CPC classification number: H04L27/201

Abstract: A system and method of the present invention forms a hybrid encoded signal. A signal generator generates a coded waveform having a trellis structure, such as a continuous phase modulated signal. A modulator is operative with the signal generator and adds at least one orthogonal or amplitude modulated waveform to a trellis structure of the coded waveform to create a non-constant envelope modulated signal that has at least one of increased bandwidth, improved bit error rate, or an increased number of bits encoded into a single symbol.

Abstract translation: 本发明的系统和方法形成混合编码信号。 信号发生器产生具有格状结构的编码波形，例如连续相位调制信号。 调制器与信号发生器一起操作，并且将至少一个正交或调幅波形添加到编码波形的网格结构，以产生非常数包络调制信号，其具有增加的带宽，改进的误码率或者 增加编码为单个符号的比特数。

公开(公告)号：US20170180173A1

公开(公告)日：2017-06-22

申请号：US15327600

申请日：2015-08-20

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Miguel Lopez ,  Mårten Sundberg ,  Olof Liberg

IPC: H04L27/20 ,  H04L1/00 ,  H04B1/707 ,  H04L27/233 ,  H04L25/03

CPC classification number: H04L27/201 ,  H04B1/707 ,  H04L1/0054 ,  H04L25/03834 ,  H04L27/2014 ,  H04L27/2017 ,  H04L27/233

Abstract: A radio network node comprised, and a wireless device configured to be operative, in a wireless communication system. The radio network node obtains downlink data and converts it to a baseband signal. The conversion comprises Gaussian Minimum Shift Keying (GMSK) modulation of the downlink data. The modulation applies a negative modulation index selected based on a type of wireless device that is a target for the downlink data. A radio signal is provided based on the baseband signal and sent to, and received by, the wireless device that provides user data based on the radio signal.

公开(公告)号：US20170005696A1

公开(公告)日：2017-01-05

申请号：US15113342

申请日：2014-01-21

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON

Inventor： Henrik Sjoland

IPC: H04B1/525 ,  H04L27/20 ,  H04L12/26 ,  H04L5/14

CPC classification number: H04B1/525 ,  H04L5/14 ,  H04L27/201 ,  H04L43/028

Abstract: A transceiver arrangement is disclosed. The transceiver arrangement comprises a receiver arranged for frequency-division duplex communication with a communication network and a transmitter arranged for frequency-division duplex communication with the communication network. The transceiver arrangement also comprises a transmission port anda phase shifter arrangement which comprises a first 180° phase shifter and a second 180° phase shifter. The transceiver arrangement further comprises a filtering arrangement. The filtering arrangement comprises filters of a first type and filters of a second type. The filtering arrangement and the phase shifter arrangement are arranged to connect the receiver, transmitter and transmission port forming a first signal path between the transmission port and the transmitter by a first one of the filters of the first type and the first phase shifter in series, a second signal path between the transmission port and the transmitter by a second one of the filters of the first type and a first one of the filters of the second type in series, a third signal path between the transmission port and the receiver by a second one of the filters of the second type and the second phase shifter in series, and a fourth signal path between the transmission port and the receiver by a third one of the filters of the second type and a third one of the filters of the first type in series. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency, and the filters of the second type are arranged to attenuate signals at transmitter frequency and pass signals at receiver frequency. A communication device capable of frequency division duplex communication comprising such a transceiver arrangement is also disclosed.

Abstract translation: 公开了一种收发器装置。 收发器装置包括布置成与通信网络进行频分双工通信的接收机和布置成与通信网络进行频分双工通信的发射机。 收发器装置还包括传输端口和移相器装置，其包括第一180°移相器和第二180°移相器。 收发器装置还包括滤波装置。 滤波装置包括第一类型的滤波器和第二类型的滤波器。 滤波装置和移相器装置被布置成通过串联的第一类型和第一移相器的滤波器中的第一个连接在传输端口和发射机之间形成第一信号路径的接收机，发射机和传输端口， 通过第一类型的滤波器中的第二个和第二类型的滤波器中的第一个串联的第二信号路径在传输端口和发射机之间的第二信号路径，传输端口和接收机之间的第二信号路径是第二信号路径 串联的第二类型和第二移相器的滤波器中的一个以及第二类型的滤波器中的第三个和第一类型的滤波器中的第三个之间的传输端口和接收器之间的第四信号路径 系列。 第一类型的滤波器被布置成以发射机频率传递信号并在接收机频率处衰减信号，并且第二类型的滤波器被布置为衰减发射机频率处的信号并且以接收机频率传递信号。 还公开了能够进行包括这种收发器装置的频分双工通信的通信设备。

公开(公告)号：US20140294122A1

公开(公告)日：2014-10-02

申请号：US14009007

申请日：2012-03-05

Applicant: Thorben Detert ,  Mikhail Volyanskiy

Inventor： Thorben Detert ,  Mikhail Volyanskiy

IPC: H04L27/20

CPC classification number: H04L27/201 ,  H04L25/03171 ,  H04L25/067 ,  H04L27/2331

Abstract: A device for detecting an estimated value for a symbol at a given time, which is supplied to a phase modulation and transmitted via a transmission channel with a time-variable phase, provides a unit for determining log weighting factors in a forward recursion, a unit for determining complex coefficients in a forward recursion, a unit for determining log weighting factors in a backward recursion, a unit for determining complex coefficients in a backward recursion, a unit for determining an extrinsic information, a unit for determining the phase factor with the maximal weighting factor in a forward recursion and a unit for determining the phase factor with the maximal weighting factor in a backward recursion.

Abstract translation: 用于检测给定时间的符号的估计值的装置，其被提供给相位调制并且经由具有时变相位的传输信道发送，提供用于确定正向递归中的对数加权因子的单元，单元 用于确定正向递归中的复系数，用于确定反向递归中的对数加权因子的单元，用于确定反向递归中的复系数的单元，用于确定外在信息的单元，用于确定具有最大值的相位因子的单元 正向递归中的加权因子和用于在向后递归中用最大加权因子确定相位因子的单元。

公开(公告)号：US07684497B2

公开(公告)日：2010-03-23

申请号：US11174263

申请日：2005-06-30

Applicant: Marilynn P. Green

Inventor： Marilynn P. Green

IPC: H04B14/04

CPC classification number: H04L27/201 ,  H04L25/4917

Abstract: To reflect advantages of a constant phase modulation waveform, the invention provides a pulse amplitude modulated PAM waveform that is a superposition of Q0≦2L−1 PAM component pulses in each symbol interval such that a significant portion of signal energy over each symbol interval is within the Q0 PAM component pulses. The present invention distributes most signal energy in one pulse and progressively lower energies in the remaining Q0−1 pulses of a symbol interval. The Laurent Decomposition is a special case of the present invention, but the present invention exhibits the energy distribution of the Laurent Decomposition in non-binary CPM waveforms and in multi-h (binary and non-binary) CPM waveforms, where h is a modulating index. All energy is distributed among only Q=2L−1 pulses in each symbol interval, though only Q0

Abstract translation: 为了反映恒定相位调制波形的优点，本发明提供脉冲幅度调制PAM波形，其是每个符号间隔中的Q0和nLE; 2L-1PAM分量脉冲的叠加，使得每个符号间隔上的信号能量的大部分在 Q0 PAM分量脉冲。 本发明在一个脉冲中分配大多数信号能量，并且在符号间隔的剩余Q0-1脉冲中逐渐降低能量。 Laurent分解是本发明的特殊情况，但是本发明在非二进制CPM波形和多h（二进制和非二进制）CPM波形中展现了Laurent分解的能量分布，其中h是调制 指数。 尽管在某些实施例中仅实际上可以传输Q0

公开(公告)号：US20080178062A1

公开(公告)日：2008-07-24

申请号：US11625300

申请日：2007-01-20

Applicant: James A. Norris ,  John W. Nieto

Inventor： James A. Norris ,  John W. Nieto

IPC: H03M13/03

CPC classification number: H03M13/4169 ,  H03M13/3955 ,  H03M13/41 ,  H04L1/006 ,  H04L25/03229 ,  H04L25/03235 ,  H04L25/03834 ,  H04L27/10 ,  H04L27/201 ,  H04L27/3405

Abstract: A programmable decoder includes at least one programming input for a plurality of programmable, reduced state trellis parameters. A programmable device is connected to the at least one programming input and implements a Reduced-State Sequence Estimation (RSSE) decoder comprising at least one reduced-state trellis structure based upon the plurality of programmable reduced-state trellis parameters, including one of at least the number of super-states, the number of full-states, the number of branches per super-state, a reverse super-state trellis table, a decoder super-state survivor as a full-state, a forward full-state table, a full-state to super-state mapping table, a decoder super-state path metric and decoder super-state traceback array.

Abstract translation: 可编程解码器包括至少一个编程输入用于多个可编程的，缩小的状态格状参数。 可编程设备连接到所述至少一个编程输入，并且实现基于所述多个可编程缩减状态网格参数的包括至少一个简化状态网格结构的简化状态序列估计（RSSE）解码器，所述缩减状态网格结构至少包括 超状态数，全状态数，每超级状态的分支数，反超状态网格表，解码器超状态幸存者为全状态，前向全状态表， 全状态到超状态映射表，解码器超状态路径度量和解码器超状态追溯阵列。

公开(公告)号：US20050276345A1

公开(公告)日：2005-12-15

申请号：US10868430

申请日：2004-06-15

Applicant: James Norris ,  John Nieto

Inventor： James Norris ,  John Nieto

IPC: H04L5/12 ,  H04L27/20

CPC classification number: H04L27/201

Abstract: A system and method of the present invention forms a hybrid encoded signal. A signal generator generates a coded waveform having a trellis structure, such as a continuous phase modulated signal. A modulator is operative with the signal generator and adds at least one orthogonal or amplitude modulated waveform to a trellis structure of the coded waveform to create a non-constant envelope modulated signal that has at least one of increased bandwidth, improved bit error rate, or an increased number of bits encoded into a single symbol.

Abstract translation: 本发明的系统和方法形成混合编码信号。 信号发生器产生具有格状结构的编码波形，例如连续相位调制信号。 调制器与信号发生器一起操作，并且将至少一个正交或调幅波形添加到编码波形的网格结构，以产生非常数包络调制信号，其具有增加的带宽，改进的误码率或者 增加编码为单个符号的比特数。

公开(公告)号：US5832022A

公开(公告)日：1998-11-03

申请号：US459326

申请日：1995-06-02

Applicant: Logan Scott

Inventor： Logan Scott

IPC: H04L27/20 ,  H04L27/30 ,  H04L25/03 ,  H04L25/49

CPC classification number: H04L27/201

Abstract: A transceiver uses feedback control to monitor a transmitted continuous phase modulation (CPM) waveform, such as a spread spectrum CPM waveform, and adjust the modulation index in response thereto. Codewords are selected from a table according to a data signal and applied to a pulse shaping network. The pulse shaping network outputs a CPM waveform to a prefilter. The prefilter is connected to an FM modulator, such as a voltage controlled oscillator. In one embodiment, a correlator in the transceiver monitors the transmitted waveform during times when the transceiver is not receiving signals, and provides a correlation signal to a feedback control circuit. The feedback control circuit dynamically adjusts the gain of the prefilter, and may comprise, e.g., a second order tracking loop filter. The feedback control signal thereby tracks the amplitude of the transmitted waveform and adjusts the output gain of the prefilter so as to maintain a constant signal envelope. A tau-dither algorithm may be employed as part of the tracking circuit. In an alternative embodiment, a gradient search is used to adjust the output amplitude of the transmitted signal, wherein the step size of the gradient search is based on the slope of the signal amplitude and varied dynamically over time. In another embodiment, a two bandwidth differencing circuit is used to adjust the output amplitude of the transmitted signal.

Abstract translation: 收发器使用反馈控制来监视发射的连续相位调制（CPM）波形，例如扩频CPM波形，并响应于此调整调制指数。 代码字根据数据信号从表中选择并应用于脉冲整形网络。 脉冲整形网络向预滤波器输出CPM波形。 预滤波器连接到FM调制器，例如压控振荡器。 在一个实施例中，在收发器未接收信号的时间期间，收发器中的相关器监视发送的波形，并且向反馈控制电路提供相关信号。 反馈控制电路动态地调节预滤波器的增益，并且可以包括例如二阶跟踪环路滤波器。 反馈控制信号从而跟踪传输波形的幅度，并调整预滤波器的输出增益，以保持恒定的信号包络。 可以采用波束抖动算法作为跟踪电路的一部分。 在替代实施例中，使用梯度搜索来调整发射信号的输出幅度，其中梯度搜索的步长大小基于信号幅度的斜率并随时间动态变化。 在另一个实施例中，使用双带宽差分电路来调整发射信号的输出幅度。