公开(公告)号：US08963755B2

公开(公告)日：2015-02-24

申请号：US14351111

申请日：2012-10-10

Applicant: ST-Ericsson SA

Inventor： Carlo Pinna

IPC: H03M3/00

CPC classification number: H03M3/30 ,  H03M3/39 ,  H03M3/424 ,  H03M3/454

Abstract: A multi-level sigma-delta Analog to Digital converter provides multi-level outputs using a quantizer with reduced quantization levels. The converter comprises a direct path comprising a computation block, an analog integrator, a digital integrator and the quantizer with reduced quantization levels. Further, the converter comprises a feedback path arranged to provide to the computation block a feedback analog signal. The feedback analog signal is injected via the feedback path and the computation block directly at the input terminal of the quantizer. The converter allows reduction of the complexity of the quantizer.

Abstract translation: 多电平Σ-Δ模数转换器使用具有降低量化级别的量化器来提供多电平输出。 转换器包括直接路径，其包括计算块，模拟积分器，数字积分器和具有降低的量化级别的量化器。 此外，转换器包括反馈路径，其被布置为向计算块提供反馈模拟信号。 反馈模拟信号通过反馈路径和计算块直接在量化器的输入端注入。 该转换器允许降低量化器的复杂性。

公开(公告)号：US20150035591A1

公开(公告)日：2015-02-05

申请号：US14379399

申请日：2013-02-26

Applicant: ST-Ericsson SA

Inventor： Germano Nicollini ,  Andrea Barbieri

IPC: G05F3/26 ,  H03H7/01

CPC classification number: G05F3/262 ,  G05F1/56 ,  G05F1/561 ,  G05F3/26 ,  H03H7/0161

Abstract: A low-noise reference voltages distribution circuit (10) is disclosed, comprising a multi-output voltage to current converter (V/I_Conv) adapted to receive an input reference voltage (VR) for providing a plurality of output reference currents (I1, . . . , IN) to be converted into a plurality of local reference voltages (V01, V0N) at corresponding receiving circuits (LCR1, LCRN) adapted to be connected to said reference voltages distribution circuit (10). The multi-output voltage to current converter (V/I_Conv) comprises: -an input section (20) adapted to generate on the basis of said input reference voltage (VR) a reference current (I0), the input section (20) comprising a current mirror input transistor (M0E) having a voltage controlled input terminal (g0E); -an output section (50) comprising a plurality of current mirror output transistors (M01, M0N) each adapted to provide a corresponding output reference current of said plurality of reference currents (I1, . . . , IN), each of said current mirror output transistors (M01, M0N) comprising a voltage controlled input terminal (g01, . . . , g0N), the output section (50) comprising a common input node (51) to which voltage controlled input terminals (g01, g0N) of said current mirror output transistors (M01, M0N) are connected. The voltage to current converter (V/I_Conv) comprises a low-pass filter (30) having an input node (31) connected to said voltage controlled input terminal (g0E) of the current mirror input transistor (M0E) and an output node (33) connected to said common input node (51).

Abstract translation: 公开了一种低噪声参考电压分配电路（10），其包括适于接收用于提供多个输出参考电流（I1，...）的输入参考电压（VR）的多输出电压 - 电流转换器（V / I_Conv）。 ...，IN）在适于连接到所述参考电压分配电路（10）的相应接收电路（LCR1，LCRN）处被转换成多个局部参考电压（V01，V0N）。 多输出电压到电流转换器（V / I_Conv）包括： - 适于基于所述输入参考电压（VR）产生参考电流（I0）的输入部分（20），所述输入部分（20）包括 具有电压控制输入端（g0E）的电流镜输入晶体管（M0E）; - 输出部分（50），包括多个电流镜输出晶体管（M01，M0N），每个电流镜输出晶体管适于提供所述多个参考电流（I1，...，IN）的相应的输出参考电流，每个所述电流镜 输出晶体管（M01，M0N），包括电压控制输入端（g01，...，g0N），输出部分（50）包括公共输入节点（51），所述输入端 电流镜输出晶体管（M01，M0N）连接。 电压 - 电流转换器（V / I_Conv）包括具有连接到电流镜输入晶体管（M0E）的所述电压控制输入端子（g0E）的输入节点（31）的低通滤波器（30）和输出节点 33）连接到所述公共输入节点（51）。

公开(公告)号：US20150023400A1

公开(公告)日：2015-01-22

申请号：US14364836

申请日：2012-12-07

Applicant: ST-Ericsson SA

Inventor： Sajal Kumar Das ,  Suyog Moogi ,  Leela Srikar Muppirisetty ,  Deepak Varshney

IPC: H04B7/08 ,  H04B17/00 ,  H04L25/03 ,  H04B7/04

CPC classification number: H04B7/0808 ,  H04B7/0404 ,  H04B7/0877 ,  H04B17/26 ,  H04B17/29 ,  H04B17/318 ,  H04L25/03891

Abstract: The present subject matter discloses a method for antenna activity detection in multi-antenna communication devices. In one embodiment, the method comprises computing a received signal strength indicator (RSSI) value for each of a plurality of antennas based on a sampled data associated with each of the antennas. The RSSI values may then be analyzed to identify an antenna having a highest RSSI value as a primary antenna and one or more antennas having the RSSI value less than the highest RSSI value as auxiliary antennas. Further, an RSSI difference for each of the auxiliary antennas is calculated and compared with a first threshold value to ascertain one or more potentially inactive antennas from among the auxiliary antennas. The potentially inactive antennas may then be further analyzed to identify one or more inactive antennas based at least in part on the RSSI value.

Abstract translation: 本主题公开了一种用于多天线通信设备中的天线活动检测的方法。 在一个实施例中，该方法包括基于与每个天线相关联的采样数据来计算多个天线中的每一个的接收信号强度指示符（RSSI）值。 然后可以分析RSSI值以识别具有最高RSSI值的天线作为主天线，以及具有小于最高RSSI值的RSSI值的一个或多个天线作为辅助天线。 此外，计算每个辅助天线的RSSI差，并将其与第一阈值进行比较，以从辅助天线中确定一个或多个潜在的无效天线。 然后可以进一步分析潜在的不活动天线，以至少部分地基于RSSI值来识别一个或多个非活动天线。

公开(公告)号：US20150010171A1

公开(公告)日：2015-01-08

申请号：US14374929

申请日：2013-02-11

Applicant: ST-Ericsson SA

Inventor： Sergio Pernici ,  Germano Nicollini

IPC: H04R3/00

CPC classification number: H04R3/00 ,  H03F3/1855 ,  H03F3/45183 ,  H03F3/45511 ,  H03F2200/03 ,  H03F2200/481 ,  H03F2203/45374 ,  H03F2203/45418 ,  H04R3/002

Abstract: The invention relates to a circuit (100) for use with a loudspeaker (104) having a first differential input terminal (t1) and a second differential input terminal (t2), the circuit (100) comprising: a differential power amplifier (103) having a first differential output terminal (t3) operatively connected to the first differential input terminal (t1) of the loudspeaker (104) and a second differential output terminal (t4) operatively connected to the second differential input terminal (t2) of the loudspeaker (104);—a first resistor (RS1) disposed between the first differential output terminal (t3) of the differential power amplifier (103) and the first differential input terminal (t1) of the loudspeaker (104); a second resistor (RS2) disposed between the second differential output terminal (t4) of the differential power amplifier (103) and the second differential input terminal (t2) of the loudspeaker (104). The circuit (100) further comprises: a first resistive module (RR1, RR2) arranged to generate on a respective output terminal (t5) a first control voltage (VIN), the first resistive module (RR1, RR2) having a first input terminal (t6) connected to the first differential output terminal (t3) of the power amplifier (103) and a second input terminal (t7) connected to the second differential input terminal (t2) of the loudspeaker (104), a second resistive module (RR3, RR4) arranged to generate on a respective output terminal (t8) a second control voltage (VIP), the second resistive module (RR3, RR4) having a first input terminal (t9) connected to the second differential output terminal (t4) of the power amplifier (103) and a second input terminal (t10) connected to the first differential input terminal (t1) of the loudspeaker (104). The loudspeaker circuit (100) being arranged to control the differential power amplifier (103) on the basis of the first control voltage (VIN) and the second control voltage (VIP).

公开(公告)号：US20140370943A1

公开(公告)日：2014-12-18

申请号：US14361833

申请日：2013-01-25

Applicant: ST-Ericsson SA

Inventor： Marcus Suhonen

IPC: H03K19/0185 ,  H04W52/02 ,  H03B28/00

CPC classification number: H03K19/018571 ,  H01L21/761 ,  H01L2924/00 ,  H01L2924/13091 ,  H02M3/156 ,  H02M3/3376 ,  H02M2001/0048 ,  H02M2007/4815 ,  H03B28/00 ,  H03K19/0013 ,  H03K19/00361 ,  H04W52/028 ,  Y02D70/122

Abstract: A switching circuit (100, 200) for switching a voltage at an output node (120), comprises a first switch element (T1) coupled between a first supply node (110) and the output node (120), the first supply node (110) being at a first supply voltage (VDD), and a second switch element (T2) coupled between a second supply node (130) and the output node (120), the second supply node (130) being at a second supply voltage (Vss)- A switch controller (140) is arranged to, dependent on an input signal (VIN), switch the switching circuit (100, 200) between a first state, in which the first switch element (T1) is in a conducting state and the second switch element (T2) is in a non-conducting state, and a second state, in which the first switch element (T1) is in a non-conducting state and the second switch element (T2) is in a conducting state, through an intermediate state in which both the first switch element (T1) and the second switch element (T2) are in the non-conducting state.

Abstract translation: 一种用于切换输出节点（120）处的电压的开关电路（100,200）包括耦合在第一供电节点（110）和输出节点（120）之间的第一开关元件（T1），第一供电节点 110）处于第一电源电压（VDD），以及耦合在第二电源节点（130）和输出节点（120）之间的第二开关元件（T2），第二电源节点（130）处于第二电源电压 （Vss） - 开关控制器（140）被布置为根据输入信号（VIN），将开关电路（100,200）切换到第一状态，其中第一开关元件（T1）处于导通 状态和第二开关元件（T2）处于非导通状态，第二状态是第一开关元件（T1）处于非导通状态，第二开关元件（T2）处于导通状态 状态，通过其中第一开关元件（T1）和第二开关元件（T2）都处于非导通状态的中间状态。

公开(公告)号：US20140349702A1

公开(公告)日：2014-11-27

申请号：US14360956

申请日：2012-11-16

Applicant: ST-Ericsson SA

Inventor： Safouane Sfar

IPC: H04W52/34

CPC classification number: H04W52/343 ,  H04W52/146 ,  H04W52/346 ,  H04W52/367

Abstract: Some embodiments of the invention concern a method of communication in a cellular network between a base station and a user equipment, comprising a step (S2) of providing, from base station to user equipment, a new allowed maximum transmitting power lower than former allowed maximum transmitting power because of traffic load increase within base station cell, wherein, if user equipment sends later on a message, to base station, with a transmitting power exceeding said new maximum, base station may decide not to reject (S10, S15) user equipment message depending on at least one condition.

Abstract translation: 本发明的一些实施例涉及在基站和用户设备之间的蜂窝网络中的通信方法，包括从基站向用户设备提供低于先前的允许最大值的新允许的最大发射功率的步骤（S2） 由于基站小区内的业务负载增加而发送功率，其中，如果用户设备以后发送消息发送到基站，则发射功率超过所述新的最大值时，基站可以决定不拒绝（S10，S15）用户设备 消息取决于至少一个条件。

公开(公告)号：US20140349586A1

公开(公告)日：2014-11-27

申请号：US14273650

申请日：2014-05-09

Applicant: ST-Ericsson SA

Inventor： Achraf DHAYNI

IPC: G06F11/27 ,  H04B17/00

CPC classification number: G06F11/27 ,  H04B5/0062 ,  H04B17/00 ,  H04B17/17 ,  H04B17/19

Abstract: The invention proposes a built-in self-testing method of a near field communication device including several functions, comprising testing a first internal communication link between a first function and a second function, by sending, on said first internal communication link, a first command from said first function used as a transmitter to said second function used as a receiver, and by checking said first command has been correctly executed by said second function.

Abstract translation: 本发明提出了一种包括若干功能的近场通信设备的内置自检方法，包括：测试第一功能和第二功能之间的第一内部通信链路，通过在所述第一内部通信链路上发送第一命令 从用作发射机的所述第一功能到用作接收机的所述第二功能，以及通过检查所述第一命令已被所述第二功能正确地执行。

公开(公告)号：US08897274B2

公开(公告)日：2014-11-25

申请号：US13785107

申请日：2013-03-05

Applicant: ST-Ericsson SA

Inventor： Naveen Jacob

IPC: H04W4/00 ,  H04J3/00 ,  H04B1/10 ,  H04L5/12 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04B1/1027 ,  H04L5/12 ,  H04L25/0202 ,  H04L25/0206 ,  H04L25/03006 ,  H04L2025/03407

Abstract: A receiver receives a desired radio sub-channel transmitted with an unwanted radio sub-channel by producing signal branches from a received radio signal by treating orthogonal components of the received signal separately and also by using one or both of oversampling and multiple receive antennas. Channel estimates for both the desired and unwanted radio sub-channels are produced for signal branches. The unwanted radio sub-channel bits are estimated from a non-stacked form of the received radio signal. The channel estimates and the estimate of the unwanted radio sub-channel bits are used to reconstruct unwanted radio sub-channel components separately for signal branches. Desired radio sub-channel signal branches are produced by subtracting a corresponding one of the reconstructed unwanted radio sub-channel components from signal branches. A non-stacked desired signal is produced by combining the desired radio sub-channel signal branches. The non-stacked desired signal is processed to receive the desired radio sub-channel.

Abstract translation: 接收机通过分别处理接收到的信号的正交分量并且还通过使用过采样和多个接收天线中的一个或两个来产生来自接收的无线电信号的信号分支，从而接收利用不需要的无线电子信道发送的期望的无线电子信道。 为信号分支产生期望和不需要的无线电子信道的信道估计。 不需要的无线电子信道比特是从接收的无线电信号的非堆叠形式估计的。 信道估计和不想要的无线电子信道比特的估计被用于分别为信号分支重建不需要的无线电子信道分量。 通过从信号分支中减去重构的不需要的无线电子信道分量中相应的一个产生期望的无线电子信道信号分支。 通过组合所需的无线电子信道信号分支产生非堆叠的期望信号。 处理非堆叠的期望信号以接收所需的无线电子信道。

公开(公告)号：US20140335880A1

公开(公告)日：2014-11-13

申请号：US14363086

申请日：2012-12-12

Applicant: ST-Ericsson SA

Inventor： Bengt Lindoff ,  Ali Nader

IPC: H04W72/08 ,  H04W72/10

CPC classification number: H04W72/08 ,  H04B1/06 ,  H04B17/309 ,  H04B17/327 ,  H04W36/0083 ,  H04W52/50 ,  H04W72/10

Abstract: An apparatus (300) for use in a telecommunications system is disclosed. The apparatus (300) comprises a memory (340) and a controller (310). The apparatus (300) is configured to receive a radio frequency signal (150), determine an operating parameter and adapt a first filter function according to at least said operating parameter. The apparatus (300) is further configured to generate a filtered signal (720, 820, 730, 830) by applying said first filter function to a signal associated with the received radio frequency signal and provide said filtered signal (720, 82, 70, 830) for radio resource management.

Abstract translation: 公开了一种在电信系统中使用的装置（300）。 装置（300）包括存储器（340）和控制器（310）。 装置（300）被配置为接收射频信号（150），确定操作参数并根据至少所述操作参数调整第一滤波器功能。 装置（300）还被配置为通过将所述第一滤波器功能应用于与所接收的射频信号相关联的信号来产生滤波信号（720,820,730,830），并提供所述滤波信号（720,82,703,830） 830）用于无线电资源管理。

公开(公告)号：US20140327487A1

公开(公告)日：2014-11-06

申请号：US14362279

申请日：2012-12-06

Applicant: ST-Ericsson SA

Inventor： Emmanuel Chataigner ,  Sebastien Dedieu

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/124 ,  H03B5/1262 ,  H03B5/368 ,  H03B25/00

Abstract: An oscillator (200, 300, 350) comprises a tank circuit (100), a first transistor (M1c) and a second transistor (M1r), and the second transistor (M1r) occupies an area of silicon that is smaller than an area of silicon occupied by the first transistor (M1c). A switching apparatus (Sw1 . . . Sw14) selects either one of a first oscillator topology and a second oscillator topology, where in the first oscillator topology, the tank circuit (100) is coupled to the first transistor (M1c) in a first feedback configuration to provide feedback around the first transistor (M1c), and in the second oscillator topology, the tank circuit (100) is coupled to the second transistor (M1r) in a second feedback configuration that is different to the first feedback configuration to provide feedback around the second transistor (M1r).

Abstract translation: 振荡器（200,3300,350）包括一个振荡电路（100），一个第一晶体管（M1c）和一个第二晶体管（M1r），第二晶体管（M1r）占据一个小于 由第一晶体管（M1c）占据的硅。 开关装置（Sw1 ... Sw14）选择第一振荡器拓扑结构和第二振荡器拓扑中的任何一个，其中在第一振荡器拓扑中，振荡电路（100）以第一反馈耦合到第一晶体管（M1c） 配置以围绕第一晶体管（M1c）提供反馈，并且在第二振荡器拓扑中，振荡电路（100）以与第一反馈配置不同的第二反馈配置耦合到第二晶体管（M1r），以提供反馈 围绕第二晶体管（M1r）。