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1. 发明授权

US07352797B2 Procedure for BPSK modulation with reduced envelope peaking 有权
标题翻译：降低信号峰值的BPSK调制方法
公开(公告)号：US07352797B2
公开(公告)日：2008-04-01
申请号：US10611325
申请日：2003-06-30
申请人： Donald Brian Eidson
发明人： Donald Brian Eidson
IPC分类号： H04B1/707 , H04L27/20
CPC分类号： H04L27/2078 , H04L27/2014
摘要： A system for and method of mapping successive bits of digital data into BPSK symbols using one or more BPSK symbol constellations such that orthogonal BPSK constellations are applied to successive bits of the digital data. The system and method may toggle between applying first and second orthogonal constellations as successive bits of the digital data are encountered. Alternatively, the system and method may successively rotate by 90° the constellation to be applied as successive bits of the digital data are encountered.
摘要翻译：一种用于使用一个或多个BPSK符号星座将连续位数字数据映射成BPSK符号的系统和方法，使得将正交BPSK星座应用于数字数据的连续位。当遇到数字数据的连续位时，系统和方法可以在应用第一和第二正交星座之间切换。或者，当遇到数字数据的连续位时，系统和方法可以依次旋转90°星座以供应用。

2. 发明授权

US07310768B2 Iterative decoder employing multiple external code error checks to lower the error floor 有权
标题翻译：迭代解码器采用多个外部代码错误检查来降低错误的底数
公开(公告)号：US07310768B2
公开(公告)日：2007-12-18
申请号：US10892738
申请日：2004-07-16
申请人： Donald Brian Eidson , Abraham Krieger , Ramaswamy Murali
发明人： Donald Brian Eidson , Abraham Krieger , Ramaswamy Murali
IPC分类号： H03M13/03
CPC分类号： H04L1/005 , H03M13/09 , H03M13/15 , H03M13/2936 , H03M13/2948 , H03M13/2972 , H03M13/3776 , H03M13/3994 , H04L1/0054 , H04L1/0061 , H04L1/0065 , H04L1/0066
摘要： Iterative decoder employing multiple external code error checks to lower the error floor and/or improve decoding performance. Data block redundancy, sometimes via a cyclic redundancy check (CRC) or Reed Solomon (RS) code, enables enhanced iterative decoding performance. Improved decoding performance is achieved during interim iterations before the final iteration. A correctly decoded CRC block, indicating a decoded segment is correct with a high degree of certainty, assigns a very high confidence level to the bits in this segment and is fed back to inner and/or outer decoders (with interleaving, when appropriate) for improved iterative decoding. High confidence bits may be scattered throughout inner decoded frames to influence other bit decisions in subsequent iterations. Turbo decoders typically operate relatively well at regions where the BER is high; the invention improves iterative decoder operation at lower BERs, lowering the ‘BER floor’ that is sometimes problematic with conventional turbo decoders.
摘要翻译：迭代解码器采用多个外部码错误检查来降低错误帧和/或提高解码性能。有时通过循环冗余校验（CRC）或Reed Solomon（RS）代码进行数据块冗余，可实现增强的迭代解码性能。在最终迭代之前的中间迭代期间，可以实现改进的解码性能。一个正确解码的CRC块，指示解码的段是高度确定的正确的，为该段中的位分配非常高的置信度水平，并将其反馈给内部和/或外部解码器（适当时进行交织），以便改进的迭代解码。高置信位可能散布在整个内部解码帧中，以影响后续迭代中的其他位决策。 Turbo解码器通常在BER高的区域相对较好地工作; 本发明改进了在较低BER下的迭代解码器操作，降低了常规turbo解码器有时成问题的“BER地面”。

3. 发明授权

US06529716B1 RF transmitter with extended efficient power control range 有权
标题翻译：射频发射器具有扩展的高效功率控制范围
公开(公告)号：US06529716B1
公开(公告)日：2003-03-04
申请号：US09482121
申请日：2000-01-11
申请人： Brian Eidson , Mats Lindstrom , Robert Edmund Grange
发明人： Brian Eidson , Mats Lindstrom , Robert Edmund Grange
IPC分类号： H03C162
CPC分类号： H03G3/3042 , H03F1/0244 , H03F1/0277 , H03F2200/331 , H03G1/0088 , H04B1/04 , H04B2001/0416
摘要： A highly efficient radio frequency (RF) transmitter provides both wide bandwidth and an extended power control range. The RF transmitter includes stage switching, bias adjustment, and drain supply modulation. These components are used to provide fine and coarse power control and EER envelope fluctuations. The RF transmitter is useful in wireless communications to increase both handset talk time and battery life.
摘要翻译：高效射频（RF）发射机提供宽带宽和扩展功率控制范围。 RF发射器包括级开关，偏置调节和漏极供应调制。这些组件用于提供精细和粗略的功率控制和EER包络波动。 RF发射器在无线通信中是有用的，以增加手机通话时间和电池寿命。

4. 发明授权

US06519277B2 Accelerated selection of a base station in a wireless communication system 有权
公开(公告)号：US06519277B2
公开(公告)日：2003-02-11
申请号：US09981141
申请日：2001-10-16
申请人： Donald Brian Eidson
发明人： Donald Brian Eidson
IPC分类号： H04B1500
CPC分类号： H04W48/20 , H04B2201/70701 , H04B2201/70702
摘要： A mobile wireless transceiver selects one of multiple nearby base stations to facilitate communication over a wireless network. Each base station transmits a pilot signal that includes a spreading signal transmitted at one of many possible phase offsets. The wireless transceiver selects an initial one of the possible phase offsets of the spreading signal and then correlates a received signal against the spreading signal at consecutive ones of the possible phase offsets. Correlation begins at the selected initial phase offset and continues until a component of the received signal and the spreading signal are aligned, indicating the detection of the pilot signal from one of the base stations. The transceiver then selects a non-consecutive one of the possible phase offsets of the spreading signal and correlates the received signal against the spreading signal at this non-consecutive phase offset to determine whether any other component of the received signal is aligned with the spreading signal at the selected non-consecutive phase offset.

5. 发明授权

US06411824B1 Polarization-adaptive antenna transmit diversity system 失效
标题翻译：极化自适应天线发射分集系统
公开(公告)号：US06411824B1
公开(公告)日：2002-06-25
申请号：US09103417
申请日：1998-06-24
申请人： Donald Brian Eidson
发明人： Donald Brian Eidson
IPC分类号： H04B138
CPC分类号： H04B7/10 , H04B7/0808 , H04B7/0857
摘要： A duplex polarization adaptive system is described. The system provides polarization diversity for base station antennas under both receive and transmitting conditions. Since the base station provides polarization diversity in both transmit and receive modes, no polarization diversity is needed in the handheld unit. Even though the handheld unit does not provide polarization diversity, a duplex communication system, that uses polarization diversity for both the uplink and the downlink is provided, because the base station provides polarization diversity for the uplink and the downlink paths. By installing the two-way diversity at the base station, the overall cost of implementing diversity is reduced because one base station can typically serve many handsets. The base station antenna determines the polarization state of signals received from a remote unit, such as a handheld unit, using a polarization diverse antenna system. The base station then transmits using the same polarization state. The system is compatible with time-division duplex systems.
摘要翻译：描述了双极化自适应系统。该系统在接收和发送条件下为基站天线提供极化分集。由于基站在发射和接收模式下都提供极化分集，所以在手持设备中不需要极化分集。即使手持单元不提供极化分集，也提供了使用上行链路和下行链路的极化分集的双工通信系统，因为基站为上行链路和下行链路路径提供极化分集。通过在基站安装双向分集，实现分集的总体成本降低，因为一个基站通常可以服务于许多手机。基站天线使用偏振多样天线系统来确定从诸如手持单元的远程单元接收的信号的偏振状态。基站然后使用相同的偏振状态发送。该系统与时分双工系统兼容。

6. 发明授权

US06242975B1 Envelope peak and trough limiting to improve amplifier efficiency and distortion characteristics 有权
标题翻译：信号峰值和谷底限制，以提高放大器的效率和失真特性
公开(公告)号：US06242975B1
公开(公告)日：2001-06-05
申请号：US09318529
申请日：1999-05-25
申请人： Donald Brian Eidson , Robert Edmund Grange
发明人： Donald Brian Eidson , Robert Edmund Grange
IPC分类号： H03F368
CPC分类号： H03F3/68 , H03F1/0222
摘要： The envelope of a non-constant envelope signal is limited to certain maximum and minimum values. An envelope value is calculated for each pair of I-Q samples of the non-constant envelope signal and then is compared to the maximum and minimum values. If the envelope value lies above or below the maximum and minimum values, the I and Q signals are scaled so that the envelope value lies between these values. In some embodiments, the threshold values are selected to ensure that the probability that the envelope value will exceed these values is less than a predetermined amount (e.g., between 0.01 and 0.001).
摘要翻译：非恒定包络信号的包络被限制到某些最大值和最小值。对非恒定包络线信号的每对I-Q采样对一对包络值进行计算，然后将其与最大值和最小值进行比较。如果包络值高于或低于最大值和最小值，则I和Q信号被缩放，使得包络值位于这些值之间。在一些实施例中，选择阈值以确保包络值将超过这些值的概率小于预定量（例如，在0.01和0.001之间）。

7. 发明授权

US06813743B1 Sliding window technique for map decoders 失效
标题翻译：地图解码器的滑动窗口技术
公开(公告)号：US06813743B1
公开(公告)日：2004-11-02
申请号：US09629122
申请日：2000-07-31
申请人： Donald Brian Eidson
发明人： Donald Brian Eidson
IPC分类号： H03M1303
CPC分类号： H03M13/3905 , H03M13/3972
摘要： A MAP decoding system in which one or more backward engines operate to calculate backward state probabilities for sub-blocks within a sliding window stored in a memory. One or more forward engines calculate forward state probabilities for a sub-block in the same order as the encoded symbols for the sub-block are stored. Calculation of the forward state probabilities for a sub-block are deferred until the backward state probabilities for the sub-block have been calculated. Responsive to the calculation of the forward and backward state probabilities, the one or more forward engines calculate and release soft outputs for a sub-block in synchronization with the calculation of the forward state probabilities. The sliding window may be moved throughout the block, and the foregoing process repeated until soft outputs for the entire block have been released.
摘要翻译：一种MAP解码系统，其中一个或多个向后引擎操作以计算存储在存储器中的滑动窗口内的子块的后向状态概率。一个或多个正向引擎以与子块的编码符号相同的顺序来计算子块的前向状态概率。子块的正向状态概率的计算被推迟到子块的反向状态概率已经被计算出来。响应于向前和向后状态概率的计算，一个或多个前向引擎与前向状态概率的计算同步地计算和释放子块的软输出。滑动窗口可以在整个块中移动，并且上述过程重复，直到整个块的软输出被释放。

8. 发明授权

US06681101B1 RF transmitter with extended efficient power control range 有权
标题翻译：射频发射器具有扩展的高效功率控制范围
公开(公告)号：US06681101B1
公开(公告)日：2004-01-20
申请号：US09481094
申请日：2000-01-11
申请人： Brian Eidson , Mats Lindstrom , Robert Edmund Grange
发明人： Brian Eidson , Mats Lindstrom , Robert Edmund Grange
IPC分类号： H04B104
CPC分类号： H03C3/0933 , H03C3/0925 , H03C5/00 , H03F1/0222 , H03G3/004 , H04B1/04
摘要： A highly efficient radio frequency (RF) transmitter provides both wide bandwidth and an extended power control range. The RF transmitter includes stage switching, bias adjustment, and drain supply modulation. These components are used to provide fine and coarse power control and EER envelope fluctuations. The RF transmitter is useful in wireless communications to increase both handset talk time and battery life.
摘要翻译：高效射频（RF）发射机提供宽带宽和扩展功率控制范围。 RF发射器包括级开关，偏置调节和漏极供应调制。这些组件用于提供精细和粗略的功率控制和EER包络波动。 RF发射器在无线通信中是有用的，以增加手机通话时间和电池寿命。

9. 发明授权

US06307894B2 Power amplification using a direct-upconverting quadrature mixer topology 有权
标题翻译：使用直接上变频正交混频器拓扑进行功率放大
公开(公告)号：US06307894B2
公开(公告)日：2001-10-23
申请号：US09318482
申请日：1999-05-25
申请人： Donald Brian Eidson , Robert Edmund Grange
发明人： Donald Brian Eidson , Robert Edmund Grange
IPC分类号： H04K102
CPC分类号： H04L27/2071 , H03C3/40 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/165 , H03D2200/0007 , H03F3/211
摘要： A power amplifier for use in a wireless communication system operates like a quadrature mixer with conversion gain. The amplifier includes a local oscillator that generates two reference signals 90° out of phase with respect to each other. Four quadrature mixer elements receive signals representing the in-phase and quadrature components of a baseband signal. Each quadrature mixer amplifies the in-phase or the quadrature component of the baseband signal while upconverting with the corresponding reference signal.
摘要翻译：用于无线通信系统的功率放大器像具有转换增益的正交混频器一样工作。放大器包括本地振荡器，其产生相对于彼此90°异相的两个参考信号。四个正交混频器元件接收表示基带信号的同相和正交分量的信号。每个正交混频器在用相应的参考信号上变频的同时放大基带信号的同相或正交分量。

10. 发明授权

US08566678B2 Broadband satellite system for the simultaneous reception of multiple channels using shared iterative decoder 有权
标题翻译：使用共享迭代解码器同时接收多个信道的宽带卫星系统
公开(公告)号：US08566678B2
公开(公告)日：2013-10-22
申请号：US12862636
申请日：2010-08-24
申请人： Donald Brian Eidson , Arndt Joseph Mueller , Joseph B. Soriaga , Itzhak Gurantz
发明人： Donald Brian Eidson , Arndt Joseph Mueller , Joseph B. Soriaga , Itzhak Gurantz
IPC分类号： H03M13/00
CPC分类号： H03G3/3078 , H03G3/3068
摘要： Multiple channels of received data are processed by a multiple channel demodulation and error correction decoding engine. The statistical uncertainty of processing channels with an iterative decoder are averaged across all the channels to reduce the total processing power required of the decoding engine compared to processing each channel with a separate engine. A set of input buffers holds blocks of data for each channel needing decoding. A quality measure is computed on each input block to set the priority and iteration allocation of decoding in the common decoder. The input RF signal is digitized by a broadband tuner that processes some or all of the channels to feed the multiple channel demodulator and decoder. Multiple decoded video data streams are output.
摘要翻译：多信道的接收数据由多信道解调和纠错解码引擎处理。使用迭代解码器的处理通道的统计不确定性在所有通道上被平均，以减少与使用单独的引擎处理每个通道相比，解码引擎所需的总处理能力。一组输入缓冲器保存需要解码的每个通道的数据块。在每个输入块上计算质量度量，以在公共解码器中设置解码的优先级和迭代分配。输入RF信号由处理部分或全部信道的宽带调谐器数字化，以馈送多信道解调器和解码器。输出多个解码视频数据流。

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