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81. 发明申请

US20080069259A1 Communication system 失效
公开(公告)号：US20080069259A1
公开(公告)日：2008-03-20
申请号：US11980510
申请日：2007-10-31
申请人： Mitsuaki Oshima
发明人： Mitsuaki Oshima
IPC分类号： H04L5/12 , H04B7/216
CPC分类号： H04L1/0057 , H03M13/23 , H03M13/253 , H03M13/256 , H03M13/2936 , H03M13/35 , H03M13/356 , H03M13/6538 , H04L1/0041 , H04L1/0045 , H04L1/0054 , H04L1/0058 , H04L1/0059 , H04L1/006 , H04L1/0065 , H04L1/007 , H04L5/0007 , H04L5/0046 , H04L27/02 , H04L27/04 , H04L27/183 , H04L27/2602 , H04L27/2604 , H04L27/2627 , H04L27/2649 , H04L27/3405 , H04L27/3488 , H04L27/36 , H04L27/38 , H04L27/3854 , H04L2001/0098 , H04L2027/0036 , H04L2027/0053 , H04L2027/0067 , H04N5/4401 , H04N5/455 , H04N7/015 , H04N7/24 , H04N11/004 , H04N19/30 , H04N19/37 , H04N19/60 , H04N19/63 , H04N21/234327 , H04N21/2383 , H04N21/4382 , H04N21/4383 , H04N21/440272 , H04N21/44209 , H04N21/4425 , H04N21/4621 , H04N21/631
摘要： At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data stream respectively. Upon receiving the TV signal, a receiver can reproduce only the low frequency band component or both the low and high frequency band components, depending on its capability.

82. 发明授权

US07292836B2 Direct conversion receiver 失效
标题翻译：直接转换接收机
公开(公告)号：US07292836B2
公开(公告)日：2007-11-06
申请号：US10701636
申请日：2003-11-06
申请人： Friedrich Endress , Luc Dartois
发明人： Friedrich Endress , Luc Dartois
IPC分类号： H04B1/26 , H04B1/10
CPC分类号： H04L27/2647 , H03D3/007 , H04B1/30 , H04L27/3854
摘要： The invention relates to a direct conversion receiver for down-converting a received multi-carrier signal comprising at least a first and a second carrier signal at image carrier frequencies to a base band resulting in that the first carrier signal includes an image signal of said second carrier signal. Further, the known direct conversion receiver comprises at least a first and a second digital down-converter unit for separating the first and the second carrier signal from the down-converted multi-carrier signal after digitization. In order to make such receivers less complex and adjust them for fast time varying szenarios it is proposed to provide an error estimating unit to said receivers for calculating a compensating coefficient representing the quota and/or the phase position of the image signal of the second carrier signal being included in the first carrier signal and to remove the undesired image signal in response to said compensating coefficient.
摘要翻译：本发明涉及一种直接转换接收机，用于将接收到的多载波信号下变频到包括至少第一和第二载波信号的载波信号到基带，导致第一载波信号包括所述第二载波信号的图像信号载波信号。此外，已知的直接转换接收器至少包括第一和第二数字下变频器单元，用于在数字化之后将第一和第二载波信号与下变频多载波信号分离。为了使这样的接收机不那么复杂，并且为了快速时间变化而对它们进行调整，提出了向所述接收机提供一个误差估计单元，用于计算表示第二载波的图像信号的配额和/或相位位置的补偿系数信号被包括在第一载波信号中并且响应于所述补偿系数去除不需要的图像信号。

83. 发明授权

US07146092B2 Communication system 失效
公开(公告)号：US07146092B2
公开(公告)日：2006-12-05
申请号：US10734314
申请日：2003-12-15
申请人： Mitsuaki Oshima
发明人： Mitsuaki Oshima
IPC分类号： H04N5/91 , H04N7/00
CPC分类号： H04L1/0065 , H03M13/256 , H03M13/35 , H04L1/0041 , H04L1/0054 , H04L1/0057 , H04L1/0059 , H04L1/006 , H04L1/007 , H04L27/02 , H04L27/04 , H04L27/183 , H04L27/2602 , H04L27/2604 , H04L27/2608 , H04L27/3488 , H04L27/3854 , H04L2027/0036 , H04L2027/0053 , H04L2027/0067 , H04N5/4401 , H04N5/455 , H04N5/46 , H04N7/24 , H04N19/37 , H04N19/60 , H04N19/63 , H04N21/234327 , H04N21/2365 , H04N21/2383 , H04N21/4347 , H04N21/4382 , H04N21/440227 , H04N21/4621 , H04N21/631 , H04N21/64792
摘要： At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram expressed at least in the polar coordinate system. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data streams respectively. Upon receiving the TV signal, a receiver can reproduce only the low frequency band component or both the low and high frequency band components, depending on its capability. Furthermore, a communication system based on an OFDM system is utilized for data transmission of a plurality of subchannels, wherein the subchannels are differentiated by changing the length of a guard time slot or a carrier wave interval of a symbol transmission time slot, or changing the transmission electric power of the carrier.

84. 发明授权

US07133470B2 Receiver with offset compensation 有权
标题翻译：带补偿补偿的接收器
公开(公告)号：US07133470B2
公开(公告)日：2006-11-07
申请号：US10301235
申请日：2002-11-21
申请人： Andreas Menkhoff , Matthias Schoebinger
发明人： Andreas Menkhoff , Matthias Schoebinger
IPC分类号： H04L27/14 , H04L27/16 , H04L27/22
CPC分类号： H04L27/3854 , H04L2027/003 , H04L2027/0057 , H04L2027/0065 , H04L2027/0067
摘要： Receiver for receiving a received signal with a carrier frequency loop (18) which generates a carrier frequency deviation detection signal (TF) for detecting a carrier frequency of the received signal in a first carrier frequency capture range; a carrier phase loop (32) which generates a carrier phase deviation detection signal (TP) for detecting a carrier phase of the received signal, and settles when the carrier frequency deviation detection signal (TF) is within a second carrier frequency capture range; and with an offset control circuit (29) which changes the carrier frequency deviation detection signal (TF) and/or changes the second carrier frequency capture range by means of an offset control signal until a carrier phase lock detection circuit (21) indicates to the offset control circuit that the carrier phase offset of the received signal is less than an adjustable threshold value.
摘要翻译：接收机，用于接收具有载波频率环路（18）的接收信号，所述载波频率环路（18）产生用于检测第一载波频率捕获范围内接收信号的载波频率的载波频率偏差检测信号（TF）载波相位回路（32），其产生用于检测接收信号的载波相位的载波相位偏差检测信号（TP），并且当载波频率偏差检测信号（TF）在第二载波频率捕获范围内时，以及通过偏移控制信号改变载波频率偏差检测信号（TF）和/或改变第二载波频率捕获范围的偏移控制电路（29），直到载波相位锁定检测电路（21）向偏移控制电路，接收信号的载波相位偏移小于可调节的阈值。

85. 发明申请

US20050170805A1 Mobile radio receiver device 有权
标题翻译：移动无线电接收设备
公开(公告)号：US20050170805A1
公开(公告)日：2005-08-04
申请号：US11020747
申请日：2004-12-23
申请人： Markus Hammes , Stefan Waasen
发明人： Markus Hammes , Stefan Waasen
IPC分类号： H03D7/00 , H03D3/00 , H03D7/16 , H03D7/18 , H04B1/06 , H04B1/26 , H04B1/28 , H04B1/30 , H04B1/40 , H04L27/06 , H04L27/233 , H04L27/38
CPC分类号： H04B1/28 , H03D3/007 , H03D7/166 , H04B1/302 , H04B1/403 , H04L27/063 , H04L27/2332 , H04L27/3854
摘要： The invention is directed to a receiver arrangement, for example, in a mobile radio, which allows the use of slowly locking phase locked loops for a point-to-point connection between two transceivers, even in the case of a heterodyne receiver structure. The need to change channels between a transmission slot and a reception slot is avoided by virtue of a changeover device being provided for the purpose of interchanging the in-phase and quadrature components at the input side on a down-conversion frequency mixer. This advantageously allows either the upper sideband or the lower sideband of a useful signal to be down-converted without the need to change channel.
摘要翻译：本发明涉及例如在移动无线电中的接收器装置，其允许在两个收发器之间的点对点连接中使用缓慢锁定的锁相环，即使在外差接收器结构的情况下也是如此。通过提供转换装置来避免在传输时隙和接收时隙之间改变信道的需要，以便在下变频混频器上在输入侧交换同相和正交分量。这有利地允许下行转换有用信号的上边带或下边带，而不需要改变信道。

86. 发明申请

US20030118120A1 Receiver with offset compensation 有权
标题翻译：带补偿补偿的接收器
公开(公告)号：US20030118120A1
公开(公告)日：2003-06-26
申请号：US10301235
申请日：2002-11-21
发明人： Andreas Menkhoff , Matthias Schoebinger
IPC分类号： H04L005/12 , H04L023/02 , H04L027/14
CPC分类号： H04L27/3854 , H04L2027/003 , H04L2027/0057 , H04L2027/0065 , H04L2027/0067
摘要： Receiver for receiving a received signal with a carrier frequency loop (18) which generates a carrier frequency deviation detection signal (TF) for detecting a carrier frequency of the received signal in a first carrier frequency capture range; a carrier phase loop (32) which generates a carrier phase deviation detection signal (TP) for detecting a carrier phase of the received signal, and settles when the carrier frequency deviation detection signal (TF) is within a second carrier frequency capture range; and with an offset control circuit (29) which changes the carrier frequency deviation detection signal (TF) and/or changes the second carrier frequency capture range by means of an offset control signal until a carrier phase lock detection circuit (21) indicates to the offset control circuit that the carrier phase offset of the received signal is less than an adjustable threshold value.
摘要翻译：接收机，用于接收具有载波频率环路（18）的接收信号，所述载波频率环路（18）产生用于检测第一载波频率捕获范围内接收信号的载波频率的载波频率偏差检测信号（TF）载波相位回路（32），其产生用于检测接收信号的载波相位的载波相位偏差检测信号（TP），并且当载波频率偏差检测信号（TF）在第二载波频率捕获范围内时，以及通过偏移控制信号改变载波频率偏差检测信号（TF）和/或改变第二载波频率捕获范围的偏移控制电路（29），直到载波相位锁定检测电路（21）向偏移控制电路，接收信号的载波相位偏移小于可调节的阈值。

87. 发明申请

US20020097810A1 Power control apparatus and power control method 审中-公开
标题翻译：电源控制装置及电源控制方式
公开(公告)号：US20020097810A1
公开(公告)日：2002-07-25
申请号：US09894175
申请日：2001-06-27
发明人： Tetsuya Seki
IPC分类号： H04L027/04
CPC分类号： H04W52/58 , H04L27/3809 , H04L27/3854
摘要： The present invention relates to a transmitting unit of a base station using CDMA system, where a power control apparatus is provided which comprises a power control section and a power correcting section. The power correcting section is composed of a mask signal correcting section for correcting power control information about transmission on the basis of mask signals to output the corrected power control information, a phase rotation correcting section for correcting the corrected power control information on the basis of a decision signal to input the resultant corrected amplitude value to the power control section, and a symbol arrangement information arithmetic section for outputting symbol arrangement information based on each of the mask signals to the mask signal correcting section and the phase rotation correcting section. With this configuration, it is possible to reduce or cut the circuit scale, thus promoting an increase in user capacity.
摘要翻译：本发明涉及使用CDMA系统的基站的发送单元，其中提供了功率控制装置，其包括功率控制部分和功率校正部分。功率校正部分由屏蔽信号校正部分组成，屏蔽信号校正部分用于根据屏蔽信号校正关于传输的功率控制信息，以输出校正的功率控制信息;相位旋转校正部分，用于基于决定信号，将所得到的校正振幅值输入到功率控制部，以及符号配置信息运算部，其根据每个掩模信号输出符号排列信息给掩模信号校正部和相位旋转校正部。利用这种配置，可以减小或削减电路规模，从而促进用户容量的增加。

88. 发明申请

US20020097336A1 Communication system 失效
标题翻译：通讯系统
公开(公告)号：US20020097336A1
公开(公告)日：2002-07-25
申请号：US09741429
申请日：2000-12-21
发明人： Mitsuaki Oshima
IPC分类号： H04N007/12 , H04N005/38
CPC分类号： H04L1/0047 , H03M13/256 , H03M13/35 , H04L1/0041 , H04L1/0042 , H04L1/0054 , H04L1/0057 , H04L1/006 , H04L1/0065 , H04L1/007 , H04L27/02 , H04L27/04 , H04L27/183 , H04L27/2602 , H04L27/2604 , H04L27/2608 , H04L27/34 , H04L27/3488 , H04L27/36 , H04L27/38 , H04L27/3854 , H04L2027/0036 , H04L2027/0053 , H04L2027/0067 , H04N5/4401 , H04N5/455 , H04N5/46 , H04N7/015 , H04N7/24 , H04N19/36 , H04N19/37 , H04N19/60 , H04N19/63 , H04N21/234327 , H04N21/2365 , H04N21/2383 , H04N21/4347 , H04N21/4382 , H04N21/440227 , H04N21/4621 , H04N21/64792
摘要： At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram expressed at least in the polar coordinate system. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data streams respectively. Upon receiving the TV signal, a receiver can reproduce only the low frequency band component or both the low and high frequency band components, depending on its capability. Furthermore, a communication system based on an OFDM system is utilized for data transmission of a plurality of subchannels, wherein the subchannels are differentiated by changing the length of a guard time slot or a carrier wave interval of a symbol transmission time slot, or changing the transmission electric power of the carrier.
摘要翻译：在发射机侧，根据用于在信号空间图中产生相关信号点的输入信号调制载波。输入信号被分成两个，第一个和第二个数据流。信号点被划分为分配了第一数据流的数据的信号点组。此外，第二数据流的数据被分配给每个信号点组的信号点。通过将信号点移动到至少在极坐标系中表示的空间图中的其他位置来开发第一和第二数据流之间的传输错误率的差异。在接收机侧，可以从接收到的信号重建第一和/或第二数据流。在电视广播业务中，电视信号由发射机分成低频和高频分量，分别被指定为第一和第二数据流。在接收到TV信号时，接收机可以仅根据其能力再现低频带分量或低频和高频分量两者。此外，基于OFDM系统的通信系统被用于多个子信道的数据传输，其中通过改变符号传输时隙的保护时隙或载波间隔的长度来区分子信道，或者改变载波的传输电力。

89. 发明申请

US20020080285A1 Communication system 失效
公开(公告)号：US20020080285A1
公开(公告)日：2002-06-27
申请号：US09741336
申请日：2000-12-21
发明人： Mitsuaki Oshima
IPC分类号： H04N007/52 , H04N005/455
CPC分类号： H04L1/0065 , H03M13/256 , H03M13/35 , H04L1/0041 , H04L1/0054 , H04L1/0057 , H04L1/0059 , H04L1/006 , H04L1/007 , H04L27/02 , H04L27/04 , H04L27/183 , H04L27/2602 , H04L27/2604 , H04L27/2608 , H04L27/3488 , H04L27/3854 , H04L2027/0036 , H04L2027/0053 , H04L2027/0067 , H04N5/4401 , H04N5/455 , H04N5/46 , H04N7/24 , H04N19/37 , H04N19/60 , H04N19/63 , H04N21/234327 , H04N21/2365 , H04N21/2383 , H04N21/4347 , H04N21/4382 , H04N21/440227 , H04N21/4621 , H04N21/631 , H04N21/64792
摘要： At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram expressed at least in the polar coordinate system. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data streams respectively. Upon receiving the TV signal, a receiver can reproduce only the low frequency band component or both the low and high frequency band components, depending on its capability. Furthermore, a communication system based on an OFDM system is utilized for data transmission of a plurality of subchannels, wherein the subchannels are differentiated by changing the length of a guard time slot or a carrier wave interval of a symbol transmission time slot, or changing the transmission electric power of the carrier.

90. 发明申请

US20010048723A1 VSB/QAM receiver and method 失效
标题翻译： VSB / QAM接收机和方法
公开(公告)号：US20010048723A1
公开(公告)日：2001-12-06
申请号：US09794159
申请日：2001-02-28
发明人： Ji-sung Oh
IPC分类号： H04L005/12 , H04L023/02 , H03D001/24
CPC分类号： H04L27/0008 , H04L27/066 , H04L27/3854 , H04L2027/0036 , H04L2027/0055 , H04L2027/0087
摘要： A vestigial sideband/quadrature amplitude modulation (VSB/QAM) receiver, which receives both VSB and QAM signals and restores a carrier wave with a restored symbol clock after restoring a symbol timing in a front portion of a carrier wave restoration unit. The receiver has an analog-digital converter for A/D converting in accordance with a frequency higher than a symbol frequency of a received signal; an interpolator for calculating a signal value on the original symbol location after a signal from the A/D converter is applied; the carrier wave restoration unit for restoring a carrier wave by selectively using an automatic frequency control (AFC) and a digital frequency phase locked loop (DFPLL) in accordance with a VSB/QAM mode after a signal from the interpolator is applied; a timing processor for receiving a signal from the carrier wave restoration unit, detecting a timing error after changing a symbol input time in accordance with a VSB/QAM mode, controlling the interpolator based on the detected timing error, and generating a restored clock; and a VSB sorter for extracting a VSB receiving symbol.
摘要翻译：一种残留边带/正交幅度调制（VSB / QAM）接收机，其在恢复载波恢复单元的前部中的符号定时之后接收VSB和QAM信号并恢复具有恢复的符号时钟的载波。接收器具有用于根据接收信号的符号频率高的频率进行A / D转换的模数转换器; 用于在应用来自A / D转换器的信号之后计算原始符号位置上的信号值的内插器; 载波恢复单元，用于在应用来自内插器的信号之后，通过选择性地使用根据VSB / QAM模式的自动频率控制（AFC）和数字频率锁相环（DFPLL）来恢复载波; 定时处理器，用于从载波恢复单元接收信号，根据VSB / QAM模式检测符号输入时间改变后的定时误差，根据检测到的定时误差控制内插器，并产生恢复时钟; 以及用于提取VSB接收符号的VSB分类器。

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