专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160218827A1 System and Method for Decoding Block of Data Received Over Communication Channel 审中-公开
标题翻译：用于解码通过通信信道接收的数据块的系统和方法
公开(公告)号：US20160218827A1
公开(公告)日：2016-07-28
申请号：US14604871
申请日：2015-01-26
申请人： Mitsubishi Electric Research Laboratories, Inc.
发明人： Kyeong Jin Kim , Philip Orlik , Toshiaki Koike-Akino
IPC分类号： H04L1/00 , H04B7/04
CPC分类号： H04L1/0054 , H03C3/40 , H04B7/0413 , H04L25/0246 , H04L25/03216 , H04L25/03286 , H04L25/03891
摘要： A method decodes a block of data received over a communication channel. The method determines an initial estimate of bits in the block using a QR decomposition (QRD-M) method decoding the bits in the block sequentially by reducing an accumulated distance between the initial estimate and the bits of the block. Then, the method determines the block using a likelihood ascent (LAS) method that iteratively updates the bits of the block starting from the initial estimate.
摘要翻译：一种方法对通过通信信道接收的数据块进行解码。该方法使用QR分解（QRD-M）方法来确定块中比特的初始估计，其通过减少初始估计与块的比特之间的累积距离来顺序地解码块中的比特。然后，该方法使用从初始估计开始迭代地更新块的比特的似然上升（LAS）方法来确定块。

2. 发明授权

US09225576B1 Resilient channel and broadcast modulation 有权
标题翻译：弹性通道和广播调制
公开(公告)号：US09225576B1
公开(公告)日：2015-12-29
申请号：US14025923
申请日：2013-09-13
申请人： Michael Harrington , Frank O'Keeffe
发明人： Michael Harrington , Frank O'Keeffe
IPC分类号： H04L27/20 , H04L27/36 , H03C3/40 , H04L29/06
CPC分类号： H04L27/362 , H03C3/40 , H04L1/0042 , H04L27/0012 , H04L27/18 , H04L27/2071 , H04L27/34 , H04L29/06027
摘要： Methods, systems, and apparatuses can provide a plurality of RF channels and outputs using digital modulation and combining. In various examples, generation of digital IQ packetized data in combination with digital switching can increase the number of RF modulated channels, optimize broadcast transmission and/or provide transmission resiliency.
摘要翻译：方法，系统和装置可以使用数字调制和组合来提供多个RF信道和输出。在各种示例中，与数字切换相结合的数字IQ分组化数据的生成可以增加RF调制信道的数量，优化广播传输和/或提供传输弹性。

3. 发明授权

US09106496B2 Method and apparatus for transmitting and receiving signal 有权
标题翻译：发送和接收信号的方法和装置
公开(公告)号：US09106496B2
公开(公告)日：2015-08-11
申请号：US14354333
申请日：2012-10-24
申请人： Electronics and Telecommunications Research Institute
发明人： Jong Soo Lim , Sun Hyoung Kwon , Heung Mook Kim , Namho Hur
IPC分类号： H03C3/00 , H04L27/26 , H03C3/40 , H04L27/00
CPC分类号： H04L27/2649 , H03C3/40 , H04L27/0008 , H04L27/2614 , H04L27/2634
摘要： Modulation is performed on a first input signal and a second input signal to be transmitted based on symbol mapping. Phase values of the first and second modulated input signals are selectively adjusted. Angle modulation is performed on the first input signal and the second input signal having selectively adjusted phase values. The angle-modulated first and second input signals are transmitted.
摘要翻译：基于符号映射对第一输入信号和第二输入信号执行调制。选择性地调整第一和第二调制输入信号的相位值。对第一输入信号和第二输入信号进行角度调制，其具有选择性地调整的相位值。角度调制的第一和第二输入信号被发送。

4. 发明授权

US09025648B2 Measurement of DC offsets in IQ modulators 有权
标题翻译： IQ调制器中直流偏移的测量
公开(公告)号：US09025648B2
公开(公告)日：2015-05-05
申请号：US13774565
申请日：2013-02-22
申请人： Tektronix, Inc.
发明人： Zoltan Azary
IPC分类号： H04B3/46 , H04B17/00 , H03C3/40 , H04L27/36
CPC分类号： H04B17/104 , H03C3/40 , H04L27/364 , H04L27/3854
摘要： Described are systems and methods of determining DC offset voltages in IQ modulators. First, two different DC test voltages are selected for one of the inputs to the IQ modulator. Then, a first test voltage is applied to one input to the IQ modulator while test data is generated by measuring outputs from a set of signals applied to the other input to the IQ modulator. Then the second test voltage is applied and another set of test data generated. From the first and second sets of test data, second-order polynomial functions may be constructed and compared to one another to yield a ratio of power value outputs. Then the DC offset voltages may be determined from the ratio of power value outputs.
摘要翻译：描述了在IQ调制器中确定DC偏移电压的系统和方法。首先，为IQ调制器的输入之一选择两个不同的直流测试电压。然后，通过测量从施加到IQ调制器的另一个输入的一组信号的输出来产生测试数据，将第一测试电压施加到IQ调制器的一个输入。然后施加第二个测试电压，并产生另一组测试数据。从第一组和第二组测试数据中，可以构造二阶多项式函数并将其相互比较以产生功率值输出的比率。然后可以根据功率值输出的比率来确定DC偏移电压。

5. 发明申请

US20140294121A1 METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL 有权
标题翻译：发送和接收信号的方法和装置
公开(公告)号：US20140294121A1
公开(公告)日：2014-10-02
申请号：US14354333
申请日：2012-10-24
申请人： Electronics and Telecommunications Research Institute
发明人： Jong Soo Lim , Sun Hyoung Kwon , Heung Mook Kim , Namho Hur
IPC分类号： H04L27/18 , H04L27/26
CPC分类号： H04L27/2649 , H03C3/40 , H04L27/0008 , H04L27/2614 , H04L27/2634
摘要： Modulation is performed on a first input signal and a second input signal to be transmitted based on symbol mapping. Phase values of the first and second modulated input signals are selectively adjusted. Angle modulation is performed on the first input signal and the second input signal having selectively adjusted phase values. The angle-modulated first and second input signals are transmitted.
摘要翻译：基于符号映射对第一输入信号和第二输入信号执行调制。选择性地调整第一和第二调制输入信号的相位值。对第一输入信号和第二输入信号进行角度调制，其具有选择性地调整的相位值。角度调制的第一和第二输入信号被发送。

6. 发明申请

US20130285758A1 SERIAL COMMUNICATION PROTOCOL FOR MEDICAL DEVICE 有权
标题翻译：用于医疗器械的串行通信协议
公开(公告)号：US20130285758A1
公开(公告)日：2013-10-31
申请号：US13839351
申请日：2013-03-15
申请人： Ethicon Endo-Surgery, Inc.
发明人： Jeffrey L. Aldridge , John K. Moriarty , Stephen T Janesch , Matthew R. Drzewiecki , Ryan J. Thompson
IPC分类号： A61B17/32 , H03K7/10 , A61B18/04
CPC分类号： A61B17/320068 , A61B18/04 , A61B2017/00017 , A61B2017/00185 , A61B2017/0019 , H03C3/40 , H03K7/02 , H03K7/08 , H03K7/10 , H04L25/4902 , H04L25/4917 , H04L27/04
摘要： An apparatus is disclosed. The apparatus includes a circuit configured to transmit a signal as a serial protocol over a pair of electrical conductors. The serial protocol is defined as a series of pulses distributed over at least one transmission frame. At least one pulse in the transmission frame is simultaneously encoded by modulating an amplitude of the pulse to represent one of two first logic states and modulating a width of the pulse to represent one of two second logic states. An instrument and a generator also are disclosed.
摘要翻译：公开了一种装置。该装置包括被配置为通过一对电导体传送作为串行协议的信号的电路。串行协议被定义为分布在至少一个传输帧上的一系列脉冲。传输帧中的至少一个脉冲同时通过调制脉冲的幅度来表示两个第一逻辑状态中的一个并调制脉冲的宽度来表示两个第二逻辑状态中的一个。还公开了一种仪器和发电机。

7. 发明授权

US08315579B2 Semiconductor integrated circuit for communication 有权
标题翻译：半导体集成电路通讯
公开(公告)号：US08315579B2
公开(公告)日：2012-11-20
申请号：US12917135
申请日：2010-11-01
申请人： Ryoji Furuya , Kazuhisa Okada , Hiroaki Matsui
发明人： Ryoji Furuya , Kazuhisa Okada , Hiroaki Matsui
IPC分类号： H04B1/04 , H04B1/00
CPC分类号： H03D3/007 , H03C3/40 , H03D7/1433 , H04B1/406
摘要： The present invention provides a semiconductor integrated circuit for communication (RF IC) realizing high yield without deteriorating a carrier leak characteristic even when a modulation circuit is formed by using cheep parts with large variations. In a semiconductor integrated circuit (RF IC) including: an input circuit constructed by a differential amplifier circuit and a level shifter, which is provided on the ante stage of a mixer of a differential circuit called a Gilbert Cell; and a modulation circuit that performs modulation by adding an I/Q signal and a carrier wave signal, a calibration circuit for canceling a DC offset in an output of the input circuit is provided.
摘要翻译：本发明提供了一种用于通信（RF IC）的半导体集成电路，即使在通过使用具有大变化的尖峰部分形成调制电路时，也能实现高产率而不劣化载波泄漏特性。一种半导体集成电路（RF IC），包括：由差分放大电路和电平移位器构成的输入电路，其设置在称为吉尔伯特细胞的差分电路的混频器的前端; 以及通过添加I / Q信号和载波信号来执行调制的调制电路，提供了用于消除输入电路的输出中的DC偏移的校准电路。

8. 发明授权

US08300728B1 Complex envelope elimination and restoration transmitter 有权
标题翻译：复信封消除和恢复发射机
公开(公告)号：US08300728B1
公开(公告)日：2012-10-30
申请号：US12284726
申请日：2008-09-24
申请人： Theodore J. Hoffmann , David W. Cripe
发明人： Theodore J. Hoffmann , David W. Cripe
IPC分类号： H03C3/00
CPC分类号： H03C3/40 , H03C5/00 , H03C2200/0058
摘要： The invention is a method of transmitting a radio signal using a complex envelope elimination and restoration technique. The method includes receiving a radio frequency (RF) signal. Further, the method includes separating the RF signal into an in-phase baseband signal (I) and a quadrature baseband signal (Q). Still further, the method includes decomposing the (I) signal into a in-phase magnitude component and a in-phase phase component while decomposing the Q signal into a quadrature magnitude component and a quadrature phase component. Alternatively, the source signal could be digital baseband information. Digital signal processing could generate the phase and magnitude reference signals for the system.
摘要翻译：本发明是一种使用复信封消除和恢复技术发送无线电信号的方法。该方法包括接收射频（RF）信号。此外，该方法包括将RF信号分离为同相基带信号（I）和正交基带信号（Q）。此外，该方法包括将（I）信号分解为同相幅度分量和同相相位分量，同时将Q信号分解成正交幅度分量和正交相位分量。或者，源信号可以是数字基带信息。数字信号处理可以产生系统的相位和幅度参考信号。

9. 发明申请

US20120263260A1 Highly Optimized Digital IQ Transmitter Chain 有权
标题翻译：高度优化的数字IQ发射机链
公开(公告)号：US20120263260A1
公开(公告)日：2012-10-18
申请号：US13535827
申请日：2012-06-28
申请人： Stefan van Waasen
发明人： Stefan van Waasen
IPC分类号： H04L27/06 , H03M1/66
CPC分类号： H03C5/00 , H03C1/36 , H03C3/40 , H03D7/1441 , H03D7/165 , H03D2200/0052
摘要： Circuitry separates a modulation signal into digital sign and magnitude signal components. The digital magnitude signal is converted to an analog magnitude signal. The analog magnitude signal is the mixed with an in-phase or quadrature carrier signal under the influence of the digital sign signal and routed to a driver output stage.
摘要翻译：电路将调制信号分离成数字符号和幅度信号分量。数字幅度信号被转换成模拟量值信号。模拟幅度信号在数字信号的影响下与同相或正交载波信号混合，并被路由到驱动器输出级。

10. 发明申请

US20120253736A1 FEEDBACK COMPENSATION DETECTOR FOR A DIRECT CONVERSION TRANSMITTER 有权
标题翻译：用于直接转换发射机的反馈补偿检测器
公开(公告)号：US20120253736A1
公开(公告)日：2012-10-04
申请号：US13491945
申请日：2012-06-08
申请人： Jorgen S. Nielsen
发明人： Jorgen S. Nielsen
IPC分类号： G06F15/00
CPC分类号： H03C3/40 , H04B1/0475 , H04B1/30
摘要： A feedback compensation detector for a direct conversion transmitter includes a baseband processor, a direct up-converter, an antenna, and an impairment detection and compensation feedback circuit. The baseband processor generates an in-phase (I) baseband signal and a quadrature-phase (Q) baseband signal. The direct up-converter is coupled to the baseband processor, and combines the I and Q baseband signals with an RF carrier signal to generate an RF output signal. The antenna is coupled to the direct up-converter, and transmits the RF output signal. The impairment detection and compensation feedback circuit is coupled to the RF output signal and the I and Q baseband signals. The impairment detection and compensation feedback circuit down-converts the RF output signal to generate an intermediate frequency (IF) signal, measures as least one signal impairment in the IF signal, and pre-distorts the I and Q baseband signals to compensate for the measured signal impairment.
摘要翻译：用于直接转换发射机的反馈补偿检测器包括基带处理器，直接上变频器，天线以及损伤检测和补偿反馈电路。基带处理器产生同相（I）基带信号和正交相位（Q）基带信号。直接上变频器耦合到基带处理器，并且将I和Q基带信号与RF载波信号组合以产生RF输出信号。天线耦合到直接上变频器，并发射RF输出信号。损伤检测和补偿反馈电路耦合到RF输出信号和I和Q基带信号。损伤检测和补偿反馈电路对RF输出信号进行降频转换以产生中频（IF）信号，测量IF信号中的至少一个信号损害，并且预失真I和Q基带信号以补偿所测量的信号障碍。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式