公开(公告)号：US20200280306A1

公开(公告)日：2020-09-03

申请号：US16288384

申请日：2019-02-28

申请人： Dialog Semiconductor (UK) Limited

发明人： David Coyne

IPC分类号： H03K7/08 ,  H03K7/10 ,  H03F3/217

摘要： A signal modulator for modulating at least one input signal is disclosed. The modulator includes an adaptive ramp generator receiving a clock signal having a clock cycle. The adaptive ramp generator provides a ramp signal having a profile starting from a minimum level adjusted in each clock cycle. The signal modulator may receive a first, second, and third input signal, and a clock signal. The first and second input signals may derive from a single signal where the second signal is equal to the first signal shifted by 180 degrees,. The third signal may be a fixed level that sets the nominal duty cycle of the modulator. The input signal having the highest amplitude among the first, second, and third input signals is identified. The minimum level of the ramp signal is adjusted, and the peak value of the ramp maintained substantially equal to the signal having the highest amplitude.

公开(公告)号：US20180091959A1

公开(公告)日：2018-03-29

申请号：US15601845

申请日：2017-05-22

申请人： QUALCOMM Incorporated

发明人： Jing Sun ,  Wanshi Chen ,  Peter Gaal ,  Juan Montojo

IPC分类号： H04W4/18 ,  H04L27/34 ,  H04W52/26 ,  H04W52/14 ,  H04W72/06 ,  H04W88/04 ,  H03K7/10 ,  H04W72/12 ,  H04B7/0413

CPC分类号： H04W4/18 ,  H03K7/10 ,  H04B7/0413 ,  H04L1/0009 ,  H04L5/0044 ,  H04L27/34 ,  H04L27/3416 ,  H04W52/143 ,  H04W52/262 ,  H04W72/06 ,  H04W72/12 ,  H04W88/04

摘要： Multi-user superposition transmissions (MUSTs) on non-aligned resources are described. A base station may schedule a transmission to an enhancement layer user equipment (UE) and a base layer UE. The transmission may include a base layer that spans a base layer resource set and an enhancement layer that spans an enhancement layer resource set, where the resource sets may be aligned or un-aligned. The base station may use a combined constellation to map symbols to the base layer resource set for communication with the enhancement layer and base layer UEs over overlapping portions of the resource sets, and an extended constellation to map symbols to an extended set of resources for which the enhancement layer resource set is exclusive of the base layer resource set. The extended constellation may be based on an extended modulation order determined based on a base modulation order and an enhancement modulation order.

公开(公告)号：US20170170816A1

公开(公告)日：2017-06-15

申请号：US15188960

申请日：2016-06-21

申请人： Tempo Semiconductor, Inc.

发明人： Darrell Eugene Tinker

IPC分类号： H03K7/08 ,  G06F1/025 ,  H03K7/10 ,  H03K17/16 ,  H03K7/02 ,  H03K7/06

CPC分类号： G06F17/142 ,  G06F1/025 ,  H02M2001/0003 ,  H03K7/02 ,  H03K7/06 ,  H03K7/08 ,  H03K7/10 ,  H03K17/165

摘要： A ternary pulse width modulation (“PWM”) method and apparatus. In one embodiment, the start of the pulse sequence in the “current” frame is referenced to the end of the pulse sequence in a previous, “reference” frame, rather than to the frame boundary at the start of the current frame, thereby allowing the compensation portion of the pulse sequence to overlap into the preceding or following frame, thus achieving a higher modulation index without dropping the compensation pulses. Although in most instantiations, the reference frame will be the frame immediately preceding in time the current frame, in other instances, the reference frame may be any frame preceding the current frame that falls within the constraints of the timing facility.

公开(公告)号：US09634736B2

公开(公告)日：2017-04-25

申请号：US15199611

申请日：2016-06-30

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Subhashish Mukherjee ,  Anoop Bhat ,  Kumar Anurag Shrivastava

IPC分类号： H03D5/00 ,  H03K7/10 ,  H03K9/10 ,  H03C5/00 ,  H04B5/00 ,  H04L27/04

CPC分类号： H04B5/0087 ,  H04B5/0031 ,  H04L27/04

摘要： In described examples, a method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.

公开(公告)号：US09226766B2

公开(公告)日：2016-01-05

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： H03K7/10 ,  A61B17/32 ,  H04L25/49 ,  A61B18/04 ,  H03C3/40 ,  H04L27/04 ,  H03K7/08 ,  H03K7/02 ,  A61B17/00

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。

公开(公告)号：US08724730B2

公开(公告)日：2014-05-13

申请号：US12866686

申请日：2009-02-09

申请人： Marten Sundberg ,  Hakan Axelsson ,  Stefan Eriksson ,  Anders Malm

发明人： Marten Sundberg ,  Hakan Axelsson ,  Stefan Eriksson ,  Anders Malm

IPC分类号： H03C5/00 ,  H03D5/00 ,  H03K7/10 ,  H03K9/10

CPC分类号： H04W72/04 ,  H04L1/0072 ,  H04L1/008

摘要： Method, arrangement and computer program product in a base station for transmitting two USF values and two data blocks to a terminal. The base station and the terminal are comprised within a wireless communication network. The two USF values are to be sent across the first data block and the second data block. The first data block and first parts of the two USF values are modulated with a first modulation technique and the second data block and second parts of the two USF values are modulated with a second modulation technique. The modulated data blocks and USF parts are transmitted to the terminal. Further, a method, an arrangement and a computer program product in a terminal for receiving USF values and data blocks from a base station are described. In addition, a method, an arrangement and a computer program product in a control node are described.

摘要翻译： 用于向终端发送两个USF值和两个数据块的基站中的方法，布置和计算机程序产品。 基站和终端包括在无线通信网络内。 两个USF值将被发送到第一个数据块和第二个数据块。 第一数据块和两个USF值的第一部分用第一调制技术进行调制，第二数据块和两个USF值的第二部分用第二调制技术进行调制。 被调制的数据块和USF部分被发送到终端。 此外，描述了用于从基站接收USF值和数据块的终端中的方法，装置和计算机程序产品。 另外，描述了控制节点中的方法，装置和计算机程序产品。

公开(公告)号：US08107551B2

公开(公告)日：2012-01-31

申请号：US12334997

申请日：2008-12-15

申请人： Emmanuel Monnerie

发明人： Emmanuel Monnerie

IPC分类号： H03K7/10

CPC分类号： H04L27/265 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/10 ,  H04L27/2626

摘要： Certain embodiments provide a system for recovering data from at least one signal. The system can include an analog-to-digital converter (ADC) and in-phase/quadrature (IQ) generator component that can sample a signal recovered from a communication medium to generate a first signal sample and a second signal sample. A Fast Fourier Transform (FFT) component can process the first signal sample to generate a first signal phase and process the second signal sample to generate a second signal phase. A phase difference calculation component can determine a phase difference between the first signal phase and the second signal phase, determine a bit value represented by the signal based on the phase difference, and output the bit value to an end device coupled to the phase difference calculation component.

摘要翻译： 某些实施例提供一种用于从至少一个信号恢复数据的系统。 该系统可以包括模数转换器（ADC）和同相/正交（IQ）发生器组件，其可以采样从通信介质恢复的信号，以产生第一信号样本和第二信号样本。 快速傅里叶变换（FFT）分量可以处理第一信号采样以产生第一信号相位并处理第二信号采样以产生第二信号相位。 相位差计算部件可以确定第一信号相位和第二信号相位之间的相位差，基于相位差确定由信号表示的比特值，并将比特值输出到与相位差计算耦合的终端设备 零件。

公开(公告)号：US20090015344A1

公开(公告)日：2009-01-15

申请号：US10581804

申请日：2004-11-24

申请人： Alexander Lampe ,  Rainer Dietsch

发明人： Alexander Lampe ,  Rainer Dietsch

IPC分类号： H03K7/10

CPC分类号： H04L27/0008

摘要： Modulator system (1) comprising modulators (2, 3, 4) for modulating input signals (A) according to different modulation schemes (8PSK, GMSK) cause discontinuities in the output signals (F) when switching between the schemes. By providing the modulator systems (1) with compensators (13, 22-26) for compensating amplitudes/phases of the output signals (F) of the modulator system (1) for discontinuities, these discontinuities resulting from modulation scheme changes are reduced to a large extent. This may be done before/after the pulse shapers (11, 21). The compensators (13, 22-26) comprise multipliers for multiplying pulse shaped modulated signals with complex valued waveforms (E), or for multiplying modulated signals with waveforms (S, T), or for multiplying complex valued signals (B, C, D) with complex valued phase offsets (X, Y, Z), which complex valued signals (B, C, D) are to be multiplied with mapped input signals. As a result, the output signals (F) and/or power amplifiers (33) situated after the modulator system (1) no longer need to be ramped down.

摘要翻译： 包括用于根据不同调制方案（8PSK，GMSK）调制输入信号（A）的调制器（2,3,4）的调制器系统（1）在方案之间切换时导致输出信号（F）中的不连续性。 通过为调制器系统（1）提供补偿器（13,22-26），用于补偿调制器系统（1）的输出信号（F）的不连续性的幅度/相位，这些由调制方案改变引起的不连续性减少到 很大程度上。 这可以在脉冲整形器（11,21）之前/之后完成。 补偿器（13,22-26）包括乘法器，用于将脉冲调制信号与复值波形（E）相乘，或者用于将调制信号与波形（S，T）相乘，或者用于将复数值信号（B，C，D） ）具有复值相位偏移（X，Y，Z），这些复值信号（B，C，D）将与映射的输入信号相乘。 结果，位于调制器系统（1）之后的输出信号（F）和/或功率放大器（33）不再需要下降。

公开(公告)号：US20080212707A1

公开(公告)日：2008-09-04

申请号：US11680891

申请日：2007-03-01

申请人： Ahmadreza Rofougaran

发明人： Ahmadreza Rofougaran

IPC分类号： H03K7/10

CPC分类号： H04L27/361

摘要： Aspects of a system for a digital polar transmitter may include a digital to analog converter circuit (DAC), for which an analog voltage and/or current step size generated in response to a sequence of received binary numbers may be dynamically programmable based on an input control signal. The input control signal may be based on an amplitude modulation (AM) signal. The DAC may receive the sequence of binary numbers, generated based on a phase modulation (PM) signal, from an accumulator circuit. The dynamically programmable-step-size DAC may generate an analog signal, which is amplified by a power amplifier circuit (PA) and transmitted via an antenna. The dynamically programmable-step-size DAC may enable utilization of a linear PA circuit.

摘要翻译： 用于数字极性发射器的系统的方面可以包括数模转换器电路（DAC），其中响应于所接收的二进制数的序列产生的模拟电压和/或电流步长可以基于输入 控制信号。 输入控制信号可以基于幅度调制（AM）信号。 DAC可以从累加器电路接收基于相位调制（PM）信号生成的二进制数序列。 动态可编程步进大小的DAC可以产生模拟信号，其由功率放大器电路（PA）放大并通过天线发射。 动态可编程步进大小的DAC可以实现线性PA电路的利用。

公开(公告)号：US07133462B2

公开(公告)日：2006-11-07

申请号：US10300476

申请日：2002-11-20

申请人： Sang-Hyuck Ha ,  Min-Goo Kim

发明人： Sang-Hyuck Ha ,  Min-Goo Kim

IPC分类号： H04L27/04 ,  H04L27/12 ,  H04L27/20 ,  H04L27/36 ,  H03K7/10 ,  H04B7/14 ,  H04B1/02

CPC分类号： H04L1/1867 ,  H04L1/0003

摘要： A method and apparatus for determining an optimum modulation scheme for a retransmission in a communication system supporting HARQ. When two modulation schemes are available, at an initial transmission, information is modulated in the lower-order modulation scheme if a first MPR is less than a first threshold, and in the higher-order modulation scheme if the first MPR is greater than or equal to the first threshold. Here, an MPR is determined by an EP size, the number of available Walsh codes, and the number of slots per sub-packet that are used for a transmission. To select one of the modulation schemes for a retransmission, a second MPR is calculated using an EP size, the number of available Walsh codes, and the number of slots per sub-packet that are used for the retransmission. If the first MPR is equal to or less than a second threshold greater than the first threshold, the lower-order modulation scheme is selected. If the second MPR is greater than the second threshold, the higher-order modulation scheme is selected.

摘要翻译： 一种在支持HARQ的通信系统中确定用于重传的最佳调制方案的方法和装置。 当两个调制方案可用时，在初始传输时，如果第一MPR小于第一阈值，则在低阶调制方案中调制信息，如果第一MPR大于或等于 到第一个阈值。 这里，MPR由EP大小，可用沃尔什码的数量和用于传输的每个子分组的时隙数确定。 为了选择用于重传的调制方案之一，使用EP大小，可用沃尔什码的数量和用于重传的每个子分组的时隙数来计算第二MPR。 如果第一MPR等于或小于大于第一阈值的第二阈值，则选择低阶调制方案。 如果第二MPR大于第二阈值，则选择较高阶调制方案。