公开(公告)号：US09160232B2

公开(公告)日：2015-10-13

申请号：US13963087

申请日：2013-08-09

Applicant: ST-Ericsson SA

Inventor： Matthieu Thomas ,  Patrik Arno ,  Vladimir Molata ,  Ondrej Tlaskal

IPC: H02M3/158 ,  H02M7/483 ,  H02M1/00

CPC classification number: H02M3/1588 ,  H02M7/483 ,  H02M2001/0003 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power conversion circuit uses smaller, cheaper, and faster analog and digital circuits, e.g., buffers, comparators, and processing circuits, to provide the information necessary to control a multilevel power converter faster, cheaper, and with a smaller footprint than conventional techniques. For example, a current detection circuit indirectly measures a direction of a current through an inductor connected between midpoint node and an output node of a multilevel power converter based on comparisons between voltages associated with the multilevel power converter. A capacitor voltage detection detects a capacitor voltage across the flying capacitor to generate a logic signal based on a comparison between the capacitor voltage and a first reference voltage. A control circuit selects an operating state of the multilevel power converter to regulate a first capacitor voltage across the first capacitor based on the indirectly measured direction of the inductor current, the logic signal, and an input command signal.

Abstract translation: 功率转换电路使用更小，更便宜和更快的模拟和数字电路，例如缓冲器，比较器和处理电路，以提供与传统技术相比更快，更便宜和更小占地面积来控制多电平功率转换器所需的信息。 例如，电流检测电路基于与多电平功率转换器相关联的电压的比较，间接地测量通过连接在多电平电力转换器的中点节点和输出节点之间的电感器的电流的方向。 电容器电压检测检测跨越飞行电容器的电容器电压，以基于电容器电压和第一参考电压之间的比较来产生逻辑信号。 控制电路基于间接测量的电感器电流方向，逻辑信号和输入命令信号，选择多电平电力转换器的工作状态来调节跨第一电容器的第一电容器电压。

公开(公告)号：US20150285843A1

公开(公告)日：2015-10-08

申请号：US14707528

申请日：2015-05-08

Applicant: ST-Ericsson SA

Inventor： Vratislav MICHAL

IPC: G01R19/165 ,  G01R19/00

CPC classification number: G01R19/16552 ,  G01R19/0084 ,  G01R19/0092 ,  H02M3/156 ,  H02M3/1588 ,  H02M2001/0009 ,  H02S50/10 ,  Y02B70/1466

Abstract: It is proposed a system for measuring an output current ÎOUT of a DC-to-DC converter, the DC-to-DC converter comprising a transistor power stage. The system comprises: a voltage measuring circuit, connected to the output of the power stage of the DC-to-DC converter, for measuring an average voltage drop VAVG′ on impedances RDS(P,N) of the transistors of the power stage; an impedance RComposite, connected to an output of the voltage measuring circuit providing a current IOUT′, the impedance RComposite reproducing the impedances RDS(P,N) of the transistors of the power stage and being traversed by the current IOUT′ such that ÎOUT=VAVG/(G·k·RComposite)=IOUT′/(G·k) wherein G·k is a scaling ratio.

Abstract translation: 提出了一种用于测量DC-DC转换器的输出电流ÎOUT的系统，DC-DC转换器包括晶体管功率级。 该系统包括：电压测量电路，连接到DC-DC转换器的功率级的输出，用于测量功率级的晶体管的阻抗RDS（P，N）上的平均电压降VAVG'; 阻抗RC复合器，连接到提供电流IOUT'的电压测量电路的输出，阻抗RC复合器再现功率级的晶体管的阻抗RDS（P，N）并且由电流IOUT'穿过，使得θOUT= VAVG /（G·k·RC复合）= IOUT'/（G·k）其中G·k是缩放比。

公开(公告)号：US20150280680A1

公开(公告)日：2015-10-01

申请号：US14729362

申请日：2015-06-03

Applicant: ST-Ericsson SA

Inventor： Patrick Reynaert ,  Shailesh Kulkarni ,  Dixian Zhao

IPC: H03H7/01 ,  H03H7/06

CPC classification number: H03H7/06 ,  H03H7/0138 ,  H03H7/21 ,  H03H2007/0192

Abstract: A two-stage, passive, RC polyphase filter for mm-wave quadrature LO generation is presented. The filter features an innovative, symmetrical layout structure, which is more robust to parasitics than the conventional layout. Layout parasitics which become important at mm-wave frequencies are identified and a compensated. Impedance variations and transfer functions are evaluated considering these dominant parasitics. More than 15 dB improvement in image rejection ratio is achieved in comparison with conventional layouts. Using the inventive techniques more than 35 dB of image rejection ratio over a bandwidth of 6 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40 nm CMOS.

Abstract translation: 提出了一种用于毫米波正交LO生成的两级无源RC多相滤波器。 滤波器具有创新的对称布局结构，与传统布局相比，寄生效应更为鲁棒。 在mm波频率上变得重要的布局寄生效应被识别并得到补偿。 考虑到这些主要的寄生效应来评估阻抗变化和传递函数。 与传统布局相比，实现了超过15 dB的图像抑制比改善。 使用本发明的技术，在60GHz的40nm CMOS的外部发射机中证明了在6GHz的带宽上超过35dB的图像抑制比。

公开(公告)号：US20150278561A1

公开(公告)日：2015-10-01

申请号：US14436502

申请日：2013-10-18

Applicant: ST-Ericsson SA

Inventor： Minh Tri Do Khac ,  Rajkrishna Pillai Ravindan

IPC: G06K7/10 ,  H04B5/00

CPC classification number: G06K7/10019 ,  G06K7/10237 ,  G06K7/10297 ,  H04B5/0062

Abstract: An NFC-enabled device (12) comprising a host (22), an NFC interface (26) and an RF transceiver (24) configured to emit a first RF field (46) to power-up one or more in-range RF barcodes (16, 60), the NFC-enabled device (12) being configured to detect the presence of an RF barcode (16, 60) upon powering it up and being configured to read data (48, 62) from the one or more detected, in-range RF barcodes (16, 60), characterised by the NFC-enabled device (12) periodically (42) emitting the first RF field (46) and being configured to transmit only changes (64) in the read data (48, 62) from the or each RF barcode (16, 60) to the host (22). The invention therefore presents several advantages, namely: it can improve the user's experience by keeping the listen mode active, even in the presence of a nearby Kovio Tag; and it can save battery power by performing a periodic Kovio tag detection instead of a continuous one.

Abstract translation: 一种支持NFC的设备（12），包括主机（22），NFC接口（26）和RF收发器（24），其被配置为发射第一RF场（46）以使一个或多个范围内的RF条形码 （16,60），所述NFC功能设备（12）被配置为在为其加电并检测RF条形码（16,60）的电源并且被配置为从所述一个或多个检测到的数据（48,62）读取数据 定期射频条形码（16,60），其特征在于，启用NFC的设备（12）周期性地（42）发射第一RF字段（46），并被配置为仅传输读取数据（48）中的改变（64） ，62）从每个RF条形码（16,60）到主机（22）。 因此，本发明具有几个优点，即：即使在附近的Kovio标签的存在下，也可以通过保持听音模式的活动来改善用户的体验; 并且可以通过执行周期性的Kovio标签检测而不是连续的检测来节省电池电量。

公开(公告)号：US20150229497A1

公开(公告)日：2015-08-13

申请号：US14423757

申请日：2013-09-10

Applicant: ST-Ericsson SA

Inventor： Achraf Dhayni

IPC: H04L25/03 ,  H03D3/00

CPC classification number: H04L25/03159 ,  H03D3/009 ,  H04L27/364 ,  H04L27/3863 ,  H04L2025/03414

Abstract: A transceiver for orthogonal frequency division multiplex communication has a transmitter module (1) and a receiver module (2). The transmitter (1) has an l-path (3) and a Q-path (4) to receive signals on a number of subcarriers provided by a signal generator (9). The receiver module (2) has a receiver l-path (7) and a receiver Q-path (8) to deliver signals to a processor (15). IQ imbalance is calculated for each of the transmitter and receiver by the signal generator sending a sample signal (Xl(k), XQ(k)) over a one of the transmitter paths. The signal is then applied to one or each of the inputs to the receiver paths (7,8) to generate receiver output signals Yl(k), YQ(k), RQ(k). The processor (15) is responsive to the output signals to calculate the transmitter and receiver IQ imbalance for that subcarrier. A calibrator (19) and compensator (20) are responsive to the calculated IQ imbalance to correct or compensate each subcarrier of the transceiver band.

Abstract translation: 用于正交频分复用通信的收发机具有发射机模块（1）和接收机模块（2）。 发射机（1）具有1路径（3）和Q路径（4），以在由信号发生器（9）提供的多个子载波上接收信号。 接收器模块（2）具有接收器1路径（7）和用于将信号传送到处理器（15）的接收器Q路径（8）。 通过信号发生器通过发送器路径之一发送采样信号（X1（k），XQ（k）），为每个发射机和接收机计算IQ不平衡。 然后将信号施加到接收机路径（7,8）的一个或每个输入以产生接收机输出信号Y1（k），YQ（k），RQ（k）。 处理器（15）响应于输出信号来计算该子载波的发射机和接收机IQ不平衡。 校准器（19）和补偿器（20）响应于所计算的IQ不平衡来校正或补偿收发器频带的每个子载波。

公开(公告)号：US20150222330A1

公开(公告)日：2015-08-06

申请号：US14427821

申请日：2013-08-23

Applicant: ST-ERICSSON SA

Inventor： Harri Rapakko ,  Mikko Lintonen ,  Marko Pessa

IPC: H04B5/00 ,  H02J5/00

CPC classification number: H04B5/0037 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/80

Abstract: In a wireless power charger a receiver (6) is inductively coupled to a transmitter (1) to receive power for charging an accumulator in a device (11). The receiver (6) communicates charging data to the transmitter (1) by imposing current pulses across the direct current output terminals of a rectifier (9) in the receiver. To enhance the performance of the receiver without reducing the signal to noise ratio of the current pulse receiver to transmitter communication the shape of unwanted transient currents in a filter capacitor (10) are sensed and the transient current shape added to an ideal rectangular step function pulse shape to produce a communication pulse shape. As a result the communication pulse shape seen at a secondary inductor (7) of the receiver closely approximates the ideal rectangular step function shape desired whereby the signal to noise ratio is kept high. The receiver is particularly useful in mobile devices such as cell phones, tablet PC's and laptops.

Abstract translation: 在无线电力充电器中，接收器（6）感应耦合到发射器（1）以接收用于为设备（11）中的蓄电池充电的电力。 接收器（6）通过在接收器中的整流器（9）的直流输出端施加电流脉冲来将充电数据传送到发射器（1）。 为了在不降低当前脉冲接收器与发射器通信的信噪比的情况下提高接收机的性能，检测滤波电容器（10）中的不需要的瞬态电流的形状，并将瞬态电流形状加到理想的矩形步长函数脉冲 形状产生通信脉冲形状。 结果，在接收机的次级电感器（7）处看到的通信脉冲形状紧密地接近理想的矩形阶梯函数形状，由此使信噪比保持较高。 接收器在诸如手机，平板电脑和笔记本电脑的移动设备中特别有用。

公开(公告)号：US09093962B2

公开(公告)日：2015-07-28

申请号：US14402003

申请日：2013-05-24

Applicant: ST-Ericsson SA

Inventor： Andrea Barbieri ,  Germano Nicollini

IPC: H03F3/45 ,  H03F3/21 ,  H03M1/18

CPC classification number: H03F3/45071 ,  H03F1/0261 ,  H03F3/21 ,  H03F3/3023 ,  H03F3/45183 ,  H03F2200/153 ,  H03F2200/411 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2200/513 ,  H03F2203/45134 ,  H03F2203/45192 ,  H03F2203/45644 ,  H03F2203/45658 ,  H03M1/183

Abstract: The invention relates to a two-stage operational amplifier (400) in class AB for driving a load (RLB, RLA) comprising: an input stage (401) comprising differential input terminals (IN, 1P) and a first differential output terminal (O1P) and a second differential output terminal (O1N) for providing a first differential driving signal (Out1P) and a second differential driving signal (Out1N), respectively; an output stage (402) comprising a first output branch (403) having a first differential input terminal (I1P) operatively connected to the first differential output terminal (O1P) of the input stage (401) to receive the first differential driving signal (OUT1P) and a second output branch (404) having a second differential input terminal (I1N) operatively connected to the second differential output terminal (O1N) of the output stage (401) to receive the second differential driving signal (Out1N), —a control circuit (405) configured to control the output stage (402).

Abstract translation: 本发明涉及用于驱动负载（RLB，RLA）的AB类中的两级运算放大器（400），包括：输入级（401），包括差分输入端（IN，1P）和第一差分输出端（O1P ）和用于分别提供第一差分驱动信号（Out1P）和第二差分驱动信号（Out1N）的第二差分输出端子（O1N） 输出级（402），包括具有可操作地连接到输入级（401）的第一差分输出端（O1P）的第一差分输入端（I1P）的第一输出分支（403），以接收第一差分驱动信号（OUT1P ）和第二输出分支（404），其具有可操作地连接到输出级（401）的第二差分输出端（O1N）的第二差分输入端（I1N），以接收第二差分驱动信号（Out1N）， - 控制 电路（405）被配置为控制输出级（402）。

公开(公告)号：US20150188745A1

公开(公告)日：2015-07-02

申请号：US14416661

申请日：2013-07-23

Applicant: ST-Ericsson SA

Inventor： Achraf Dhayni

IPC: H04L27/26 ,  H04B7/04 ,  H04B17/10

CPC classification number: H04L27/2657 ,  H04B7/0413 ,  H04B17/104 ,  H04L27/2627 ,  H04L27/2655

Abstract: Receiver (RCV) adapted for determining an estimation of a Sampling Frequency Offset an OFDM signal received from an emitter EMT over a transmission channel (TC), this signal being constituted of symbols; said receiver comprising means for: —receiving symbols from said emitter through a first path of said transmission channel; —receiving these symbols from said emitter through a second path of the transmission channel; this second path having a different ratio between the durations of a total OFDM symbol and a useful data portion of it; —determining the estimation according to received symbols through the first and second paths.

Abstract translation: 接收机（RCV），用于确定从发射机EMT通过传输信道（TC）接收的OFDM信号的采样频率偏移的估计，该信号由符号构成; 所述接收机包括： - 通过所述传输信道的第一路径从所述发射机接收符号; - 通过传输通道的第二路径从所述发射器接收这些符号; 该第二路径在总OFDM符号的持续时间与其有用数据部分之间具有不同的比率; - 通过第一和第二路径确定根据接收到的符号的估计。

公开(公告)号：US20150177751A1

公开(公告)日：2015-06-25

申请号：US14415780

申请日：2013-08-08

Applicant: ST-Ericsson SA

Inventor： Miroslav Valka ,  Alberto Bosio ,  Philippe Debaud ,  Patrick Girard ,  Stephane Guilhot

IPC: G05F1/10 ,  G01R31/317

CPC classification number: G05F1/10 ,  G01R31/31709 ,  G06F1/26 ,  G06F1/324 ,  G06F1/3296 ,  G06F11/3013 ,  G06F11/3062 ,  G06F11/3093 ,  Y02D10/126 ,  Y02D10/172

Abstract: A device for controlling a power supply for a functional block in an integrated circuit, the device comprising: a signal generator configured to provide a clock signal to the functional block, an antenna comprising a transistor, and being located proximate to the functional block, the antenna being configured to receive the clock signal from the signal generator, and wherein the transistor of the antenna receives electrical power from the same power source that delivers power to the functional block, means to measure the clock signal output from the antenna, and output a control signal, and feedback means to control the voltage of the power supply to the functional block on the basis of the control signal.

Abstract translation: 一种用于控制集成电路中的功能块的电源的装置，所述装置包括：信号发生器，被配置为向所述功能块提供时钟信号，天线包括晶体管，并且位于所述功能块附近， 天线被配置为从信号发生器接收时钟信号，并且其中天线的晶体管接收来自向功能块传递功率的相同电源的电力，用于测量从天线输出的时钟信号的装置，并且输出 控制信号和反馈装置，用于根据控制信号控制对功能块的电源的电压。

公开(公告)号：US20150172000A1

公开(公告)日：2015-06-18

申请号：US14412757

申请日：2013-06-26

Applicant: ST-Ericsson SA

Inventor： Eric Alliot

IPC: H04L1/00

CPC classification number: H04L1/0054 ,  H04L1/0046 ,  H04L1/005

Abstract: A method for determining a length of a message block of k bits from a length candidate set, comprising steps of: —Selecting (401) a length candidate (N) among the set; —Decoding (402) a received frame to form a decoded sequence that includes a message of a length equal to the length candidate (N), by a Viterbi decoder; —Calculating (402) a Viterbi variable (S(N)) for this candidate (N), —Comparing (403) the Viterbi variable with a threshold (Δ), —Repeating the selecting (401), decoding (402) and calculating (402) steps if said Viterbi variable (S(N)) is greater than the threshold (Δ) and if there exists an unselected length candidate among the set; —If the Viterbi variable is greater than a best value (Sbest), updating this best value to the Viterbi variable and updating a best length (Nend) to this candidate; —Wherein the threshold (Δ) is initially set to a value determined according to the conditions of reception of the receiver.

Abstract translation: 一种用于从长度候选集合确定k比特的消息块的长度的方法，包括以下步骤： - 选择（401）所述组中的长度候选（N）; - 通过维特比解码器对接收到的帧进行编码（402）以形成包括长度等于所述长度候选（N）的长度的消息的解码序列; - 计算（402）用于该候选（N）的维特比变量（S（N））， - 使用阈值（＆Dgr）对维特比变量进行补充（403）， - 选择（401），解码（402）和 如果所述维特比变量（S（N））大于阈值（＆Dgr），并且如果在所述集合中存在未选择的长度候选者，则计算（402）步骤; - 如果维特比变量大于最佳值（Sbest），则将该最佳值更新为维特比变量，并将最佳长度（Nend）更新为该候选者; - 其中阈值（＆Dgr;）在初始设置为根据接收器的接收条件确定的值。