公开(公告)号：US20130170582A1

公开(公告)日：2013-07-04

申请号：US13724274

申请日：2012-12-21

Applicant: ST-ERICSSON SA

Inventor： Jens Rosendahl ,  Ville Ruuska ,  Mika Salmi

IPC: H04L27/12

CPC classification number: H04L27/12 ,  H03H17/0294

Abstract: The frequency response of a digital filter, such as a pre-emphasis filter in a signal transmitter having a phase-locked loop, is adjusted using interpolation of the filter coefficients, enabling sets of filter coefficients to be pre-computed or generated as needed in the transmitter. The phase error behavior of the digital filter can be significantly improved.

Abstract translation: 数字滤波器的频率响应，例如具有锁相环的信号发射机中的预加重滤波器的频率响应使用滤波器系数的内插进行调整，使滤波器系数的集合能够根据需要被预先计算或生成 发射机。 可以显着提高数字滤波器的相位误差特性。

公开(公告)号：US09577769B2

公开(公告)日：2017-02-21

申请号：US14419298

申请日：2013-07-31

Applicant: ST-Ericsson SA

Inventor： Achraf Dhayni

IPC: H04B3/00 ,  H04B7/216 ,  H04B17/19 ,  H04J4/00 ,  H04L7/02 ,  H04B17/14 ,  H04J11/00 ,  H04B17/15 ,  G01R31/3187 ,  H04B17/17 ,  H04B17/18

CPC classification number: H04B17/19 ,  G01R31/3187 ,  H04B17/14 ,  H04B17/15 ,  H04B17/17 ,  H04B17/18 ,  H04J4/005 ,  H04J11/00 ,  H04L7/02

Abstract: An OFDM communication transceiver, which is configured to test its connection with an antenna circuit unit, has a receiver chain and an emitting chain. The receiver chain includes a time-to-frequency transform unit and the emitting chain includes a frequency-to-time transform unit. The transceiver further includes means for disconnecting the receiver chain to the antenna circuit unit, means for providing a stimulus as input to the emitting chain, means for reintroducing the signal at the output of the emitting chain as an input of the receiving chain, means for determining a circuit resonance frequency, Fr, and a quality factor, Q, of a transfer function computed from the output of the time-to-frequency transform unit, and means for deciding about the connection of said antenna circuit unit according to the resonance frequency and the quality factor.

Abstract translation: 被配置为测试其与天线电路单元的连接的OFDM通信收发器具有接收器链和发射链。 接收器链包括时间 - 频率变换单元，并且发射链包括频率 - 时间变换单元。 收发器还包括用于将接收机链与天线电路单元断开的装置，用于提供作为发射链的输入的刺激的装置，用于在发射链的输出处重新引入信号作为接收链的输入的装置， 确定从时间 - 频率变换单元的输出计算的传递函数的电路谐振频率Fr和质量因子Q以及用于根据谐振频率决定所述天线电路单元的连接的装置 和品质因素。

公开(公告)号：US09531254B2

公开(公告)日：2016-12-27

申请号：US14426761

申请日：2013-08-15

Applicant: ST-Ericsson SA

Inventor： Philippe Pignolo

IPC: H02M1/36 ,  H02M3/158

CPC classification number: H02M1/36 ,  H02M3/158

Abstract: A method of controlling a start-up sequence of a DC/DC Buck converter includes continuously comparing the Buck converter's output voltage with an internal reference voltage and continuously monitoring for a Buck converter start-up signal. If the output voltage is greater than the reference voltage when a Buck converter start-up signal is detected, the Buck converter is switched off and an output capacitor of the Buck converter is discharged through a pull-down unit until the output voltage substantially equals the internal reference voltage and then restarting the Buck converter.

Abstract translation: 一种控制DC / DC降压转换器的启动顺序的方法包括连续地将Buck转换器的输出电压与内部参考电压进行比较，并连续监测降压转换器启动信号。 如果在检测到降压转换器启动信号时输出电压大于参考电压，则降压转换器关闭，降压转换器的输出电容通过下拉单元放电直到输出电压基本等于 内部参考电压，然后重新启动降压转换器。

公开(公告)号：US09515945B2

公开(公告)日：2016-12-06

申请号：US14401181

申请日：2013-05-27

Applicant: ST-Ericsson SA

Inventor： Rune Knutsen ,  Ken Henry Andersen ,  Sjur Brendeland ,  Kjell Heimdal ,  Geir Jevne ,  Daniel Martensson ,  Tryggve Mikkelsen

IPC: H04L12/873 ,  H04L1/00 ,  H04L1/16 ,  H04L5/14 ,  H04W28/22

CPC classification number: H04L47/52 ,  H04L1/0002 ,  H04L1/0023 ,  H04L1/0025 ,  H04L1/1607 ,  H04L5/1446 ,  H04W28/22 ,  Y02D50/10

Abstract: Methods of changing a data rate of communication over an interface between a data transmitter and a data receiver are disclosed, wherein the data transmitter is associated with a first processor and transmitting data over the interface and the data receiver is associated with a second processor. The data transmitter transmits and the data receiver receives data over the interface at a first data rate. At the first processor, it is determined to change the first data rate to a second data rate. The data transmitter transmits and the data receiver receives a request to change the first data rate to the second data rate. In response thereto, a response message is transmitted by the data receiver and received by the data transmitter. When the response message comprises an acknowledgement to change the first data rate to the second data rate, the data transmitter transmits and the data receiver receives data over the interface at the second data rate. Corresponding protocol, electronic circuit and electronic device are also enclosed.

Abstract translation: 公开了通过数据发送器和数据接收器之间的接口改变通信数据速率的方法，其中数据发送器与第一处理器相关联，并且通过接口发送数据，并且数据接收器与第二处理器相关联。 数据发射机发送并且数据接收器以第一数据速率通过接口接收数据。 在第一处理器处，确定将第一数据速率改变为第二数据速率。 数据发送器发送并且数据接收器接收将第一数据速率改变为第二数据速率的请求。 响应于此，响应消息由数据接收器发送并由数据发送器接收。 当响应消息包括将第一数据速率改变为第二数据速率的确认时，数据发射机发送并且数据接收器以第二数据速率通过接口接收数据。 相应的协议，电子电路和电子设备也被封闭。

公开(公告)号：US09496789B2

公开(公告)日：2016-11-15

申请号：US14428027

申请日：2013-10-09

Applicant: ST-Ericsson SA

Inventor： Xavier Branca

IPC: H02M3/158 ,  G09G5/18 ,  G09G3/32

CPC classification number: H02M3/1582 ,  G09G3/3258 ,  G09G5/18 ,  H02M2001/009 ,  Y10T307/406

Abstract: A method of driving a power stage configured to provide both a positive output voltage higher than a first potential to a positive output and a negative output voltage to a negative output includes generating a first control signal and a second control signal, and initiating a charging phase, a first duty cycle of the first control signal controlling an amount of energy to be accumulated. The method further includes initiating a first discharging phase of discharging a second amount of energy the positive output and the negative output, based on a simultaneous monitoring of the first control signal and the second control signal, the amount of energy to be discharged being controlled via a second duty cycle of the second control signal.

Abstract translation: 一种驱动功率级的方法，其被配置为向正输出提供高于第一电位的正输出电压和向负输出提供负输出电压，包括产生第一控制信号和第二控制信号，以及启动充电阶段 所述第一控制信号的第一占空比控制要积累的能量的量。 该方法还包括：基于同时监测第一控制信号和第二控制信号，启动第一放电阶段，以排出正输出和负输出的第二量的能量，经由 第二控制信号的第二占空比。

公开(公告)号：US09491718B2

公开(公告)日：2016-11-08

申请号：US14360956

申请日：2012-11-16

Applicant: ST-Ericsson SA

Inventor： Safouane Sfar

IPC: H04B7/00 ,  H04W52/34 ,  H04W52/14 ,  H04W52/36

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

Abstract: A method of communication between a base station and a user equipment in a cellular network includes providing, from the base station to the user equipment, a new allowed maximum transmitting power lower than a former allowed maximum transmitting power because of a traffic load increase within the base station cell. If the user equipment later sends a message to the base station, with a transmitting power exceeding the new allowed maximum transmitting power, the base station may decide not to reject user equipment's message depending on at least one condition.

Abstract translation: 基站和蜂窝网络中的用户设备之间的通信方法包括：从基站向用户设备提供低于先前允许的最大发射功率的新允许的最大发射功率，这是由于内部的业务负载增加 基站单元 如果用户设备随后向基站发送消息，发射功率超过新允许的最大发射功率，则基站可以根据至少一个条件来决定不拒绝用户设备的消息。

公开(公告)号：US09490776B2

公开(公告)日：2016-11-08

申请号：US14438727

申请日：2013-11-15

Applicant: ST-Ericsson SA

Inventor： Philippe Pignolo

IPC: H03K3/017 ,  H02M3/156 ,  H03K3/012

CPC classification number: H03K3/017 ,  H02M3/156 ,  H02M2003/1566 ,  H03K3/012

Abstract: A pulse width modulation controller (PWM) is disclosed which has a MOSFET (15) responsive to the error voltage (Verror) signal from the PWM amplifier (17) to detect a transient condition without delay ΔTd. The MOSFET drain generates and applies a detection signal (S) to a delaying circuit (D). The delaying circuit (D) is responsive to the transient detection signal (S) to asynchronously output two latch signals (S1) and (S2) which on application to respective latch circuits (L1, L2) cause a change in conduction state of PMOS (8) and NMOS (9). This arrangement reduces voltage undershoot.

Abstract translation: 公开了一种脉冲宽度调制控制器（PWM），其具有响应于来自PWM放大器（17）的误差电压（Verror）信号的MOSFET（15），以无延迟ΔTd检测瞬态条件。 MOSFET漏极产生并向延迟电路（D）施加检测信号（S）。 延迟电路（D）响应于瞬态检测信号（S）以异步地输出两个锁存信号（S1）和（S2），其在应用于各个锁存电路（L1，L2）引起PMOS的导通状态的改变 8）和NMOS（9）。 这种布置降低了电压下冲。

公开(公告)号：US09467247B2

公开(公告)日：2016-10-11

申请号：US14405475

申请日：2013-06-25

Applicant: ST-Ericsson SA

Inventor： Gerald Whitworth

IPC: H04K3/00 ,  G01S19/21 ,  H04B1/16

CPC classification number: H04K3/42 ,  G01S19/21 ,  H04B1/16 ,  H04K3/228 ,  H04K3/45 ,  H04K3/822

Abstract: A signal is detected and an unwanted jamming signal is removed from the detected signal. Respective first, second and third correlations between a received signal and signals at first, second and third frequencies are determined over a plurality of taps. The second frequency is higher than the first frequency and lower than the third frequency, and is equally spaced from the first and third frequencies. The second frequency is adapted to a frequency of the received signal such that peaks in the first and third correlations after corresponding adaptation of the first and third frequencies have substantially equal magnitudes. A difference is determined between non-peak magnitudes of the first and third correlations; and at least one of the correlations is compensated for the effects of the jamming signal, based on said difference.

Abstract translation: 检测到信号，并从检测到的信号中去除不需要的干扰信号。 在多个抽头上确定接收信号和第一，第二和第三频率之间的信号之间的相应的第一，第二和第三相关。 第二频率高于第一频率且低于第三频率，并且与第一和第三频率相等。 第二频率适应于接收信号的频率，使得在第一和第三频率的对应适应之后的第一和第三相关中的峰值具有基本相等的幅度。 在第一和第三相关的非峰值幅度之间确定差异; 并且基于所述差异，对所述干扰信号的影响补偿所述相关性中的至少一个。

公开(公告)号：US09451164B2

公开(公告)日：2016-09-20

申请号：US14405478

申请日：2013-05-30

Applicant: ST-Ericsson SA

Inventor： Stephane Auberger ,  Antoine Chouly

IPC: H04N5/228 ,  H04N5/232 ,  G06T5/00

CPC classification number: H04N5/23267 ,  G06T5/003 ,  G06T2207/20201 ,  H04N5/23254

Abstract: Methods of processing a frame in a video sequence of digital images are provided. The methods include determining a global motion vector for the frame relative to a previous frame in the sequence, deriving a jitter function from the global motion vector, the jitter function including an estimate of undesired motion of the frame relative to the previous frame, and determining whether the frame is blurred above a first predetermined threshold. If the frame is blurred above the first predetermined threshold, stabilizing the frame using the jitter function and applying a deblur function to the frame.

Abstract translation: 提供了处理数字图像的视频序列中的帧的方法。 所述方法包括确定该帧相对于序列中的先前帧的全局运动矢量，从全局运动矢量导出抖动函数，抖动函数包括帧相对于先前帧的不期望运动的估计，以及确定 该帧在第一预定阈值之上是否模糊。 如果帧在第一预定阈值之上模糊，则使用抖动功能来稳定帧并对帧执行去保护功能。

公开(公告)号：US09390300B2

公开(公告)日：2016-07-12

申请号：US14436502

申请日：2013-10-18

Applicant: ST-Ericsson SA

Inventor： Minh Tri Do Khac ,  Rajkrishna Pillai Ravindran

IPC: H04B5/00 ,  G06K7/10

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), characterized 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）以为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），并且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。