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公开(公告)号：US20140334632A1
公开(公告)日：2014-11-13
申请号：US14301115
申请日：2014-06-10
Applicant: ST-ERICSSON INDIA PVT. LTD. , ST-ERICSSON SA
Inventor： SANJEEV RANGANATHAN , SHYAM SOMAYAJULA , SRINATH SRIDHARAN , LIONEL CIMAZ
CPC classification number: H04R3/002 , G10K11/002 , H04R3/00 , H04R3/007
Abstract: Systems and methods for suppressing pop-up noise in an audio signal are disclosed. The system includes a driver circuit shared by a pin interface and a complementary pin interface. A control unit is coupled to the pin interface and the complementary pin interface. To activate the pin interface, the control unit is configured to first activate the driver output at the complementary pin interface. Once the complementary pin interface achieves a preset voltage, the driver output is switched to the pin interface by the control unit. In addition, the driver circuit can be calibrated for a DC offset on the complementary pin interface by re-using calibration data calculated at the pin interface. Further, DC correction signals can be provided from a pre-biasing circuit based on the calibration data of the driver circuit.
Abstract translation: 公开了用于抑制音频信号中的弹出噪声的系统和方法。 该系统包括由引脚接口和互补引脚接口共享的驱动器电路。 控制单元耦合到引脚接口和互补引脚接口。 要激活引脚接口，控制单元配置为首先在互补引脚接口处激活驱动器输出。 一旦互补引脚接口达到预设电压，驱动器输出就由控制单元切换到引脚接口。 此外，可以通过重新使用在引脚接口处计算出的校准数据，在互补引脚接口上校准驱动器电路的直流偏移。 此外，可以基于驱动器电路的校准数据从预偏置电路提供直流校正信号。
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公开(公告)号：US09277315B2
公开(公告)日：2016-03-01
申请号：US14301115
申请日：2014-06-10
Applicant: ST-ERICSSON INDIA PVT. LTD. , ST-ERICSSON SA
Inventor： Sanjeev Ranganathan , Shyam Somayajula , Srinath Sridharan , Lionel Cimaz
CPC classification number: H04R3/002 , G10K11/002 , H04R3/00 , H04R3/007
Abstract: Systems and methods for suppressing pop-up noise in an audio signal are disclosed. The system includes a driver circuit shared by a pin interface and a complementary pin interface. A control unit is coupled to the pin interface and the complementary pin interface. To activate the pin interface, the control unit is configured to first activate the driver output at the complementary pin interface. Once the complementary pin interface achieves a preset voltage, the driver output is switched to the pin interface by the control unit. In addition, the driver circuit can be calibrated for a DC offset on the complementary pin interface by re-using calibration data calculated at the pin interface. Further, DC correction signals can be provided from a pre-biasing circuit based on the calibration data of the driver circuit.
Abstract translation: 公开了用于抑制音频信号中的弹出噪声的系统和方法。 该系统包括由引脚接口和互补引脚接口共享的驱动器电路。 控制单元耦合到引脚接口和互补引脚接口。 要激活引脚接口，控制单元配置为首先在互补引脚接口处激活驱动器输出。 一旦互补引脚接口达到预设电压，驱动器输出就由控制单元切换到引脚接口。 此外，可以通过重新使用在引脚接口处计算出的校准数据，在互补引脚接口上校准驱动器电路的直流偏移。 此外，可以基于驱动器电路的校准数据从预偏置电路提供直流校正信号。
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公开(公告)号：WO2011036230A2
公开(公告)日：2011-03-31
申请号：PCT/EP2010/064088
申请日：2010-09-23
Applicant: ST-ERICSSON SA , ST ERICSSON INDIA PVT. LTD , DAS PURKAYASTHA, Saugata , CHINTHAMANI, Sarat , L, Shyam
Inventor： DAS PURKAYASTHA, Saugata , CHINTHAMANI, Sarat , L, Shyam
IPC: G06F13/38
CPC classification number: G06F13/385 , G06F12/0246 , G06F2212/7205
Abstract: Methods and systems described herein implement transferring data to a memory card (208). In one implementation, a portion of a data segment is received for storing in the memory card (208). Once received, the portion of the data segment is transferred to the memory card (208) for storing. As the portion of the data segment is being transferred, a subsequent portion of the data segment is simultaneously received. Similar to the previously received portion, once the subsequent portion has been received, it is transferred to the memory card (208) for storing. While transferring the subsequent portion of the data segment to the memory card (208), the next subsequent portion is simultaneously received. This process continues for all the subsequent portions of the data segment, and till all the portions of the data segment have been transferred to the memory card (208).
Abstract translation: 本文描述的方法和系统实现将数据传送到存储卡（208）。 在一个实现中，接收数据段的一部分以存储在存储卡（208）中。 一旦接收到，数据段的部分被传送到存储卡（208）以便存储。 随着数据段的部分被传送，数据段的后续部分被同时接收。 类似于先前接收到的部分，一旦接收到后续部分，它被传送到用于存储的存储卡（208）。 在将数据段的后续部分传送到存储卡（208）的同时，同时接收下一个后续部分。 该过程对于数据段的所有后续部分继续，并且直到数据段的所有部分已经被传送到存储卡（208）。
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公开(公告)号：WO2011064787A1
公开(公告)日：2011-06-03
申请号：PCT/IN2009/000693
申请日：2009-11-30
Applicant: ST-ERICSSON INDIA PVT. LTD. , ST-ERICSSON SA , SEEDHER, Ankit , PRABHU J, Raja , SOMAYAJULA S, Shyam
Inventor： SEEDHER, Ankit , PRABHU J, Raja , SOMAYAJULA S, Shyam
Abstract: A device implementing a scheme for reduction of pop-up noise is disclosed. The device comprises an audio subsystem (100) having an integrator (112) for amplifying an input signal (133) and a modulation circuit (114) including one or more comparators. The audio subsystem (100) is further provided with a feedback loop (142) across the integrator (112) and the modulation circuit (114) to calibrate an offsets outputs of the integrator (112) and the modulation circuit (114). The feedback loop (142) includes an integrator-offset loop (202) across the integrator (112) to calibrate an offset (136) in the output of the integrator (112), and an offset calibration loop (302) across the modulation circuit (114) to calibrate an offset (140) in the output of the modulation circuit (114).
Abstract translation: 公开了实现减少弹出噪声的方案的装置。 该装置包括具有用于放大输入信号的积分器（112）和包括一个或多个比较器的调制电路（114）的音频子系统（100）。 音频子系统（100）还在整个积分器（112）和调制电路（114）之间设置有反馈回路（142），以校准积分器（112）和调制电路（114）的偏移输出。 反馈回路（142）包括横跨积分器（112）的积分器偏移回路（202），以校准积分器（112）的输出中的偏移（136），以及跨越调制电路的偏移校准回路（302） （114）来校准调制电路（114）的输出中的偏移（140）。
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公开(公告)号：WO2011042919A1
公开(公告)日：2011-04-14
申请号：PCT/IN2010/000668
申请日：2010-10-08
Applicant: ST ERICSSON INDIA PVT. LTD. , ST ERICSSON SA , SOMAYAJULA, Shyam S. , SEEDHER, Ankit , PRABHU, Raja J.
Inventor： SOMAYAJULA, Shyam S. , SEEDHER, Ankit , PRABHU, Raja J.
CPC classification number: H03F3/2173 , H03F1/26 , H03F2200/03 , H03F2200/33 , H03F2200/351 , H03F2200/384 , H03K7/08
Abstract: A device and a method for implementing pulse width modulation for switching amplifiers (120) is described herein. In one embodiment, the device includes a sampling signal generator (202) to generate a sampling signal (208) and a modulation unit (102) operatively coupled to the sampling signal generator (202). The modulation unit (102) generates differential pulse width modulated waveforms based on the sampling signal (208) and differential input signals (220-1 and 220-2) such that at least one differential pulse width modulated waveform has a duty cycle equivalent to a pre-determined non-zero minimum pulse width at all values of the differential input signals (220-1 and 220-2).
Abstract translation: 本文描述了用于实现开关放大器（120）的脉冲宽度调制的装置和方法。 在一个实施例中，设备包括采样信号发生器（202），用于产生可操作地耦合到采样信号发生器（202）的采样信号（208）和调制单元（102）。 调制单元（102）基于采样信号（208）和差分输入信号（220-1和220-2）产生差分脉冲宽度调制波形，使得至少一个差分脉冲宽度调制波形的占空比等于 在差分输入信号（220-1和220-2）的所有值处的预定非零最小脉冲宽度。
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Patent Agency Ranking
公开(公告)号：WO2011054671A1
公开(公告)日：2011-05-12
申请号：PCT/EP2010/065816
申请日：2010-10-20
Applicant: ST-ERICSSON SA , ST-ERICSSON INDIA PVT. LTD. , AGARWAL, Rishi, C. , SOMAYAJULA, Shyam, S. , CIMAZ, Lionel
Inventor： AGARWAL, Rishi, C. , SOMAYAJULA, Shyam, S. , CIMAZ, Lionel
CPC classification number: H04R3/00 , H03F3/187 , H03F3/45475 , H03F3/45928 , H03F2200/375 , H03F2203/45101 , H03F2203/45136 , H03F2203/45586 , H03F2203/45588 , H04R2410/00
Abstract: Described herein is a microphone assembly for an electronic device incorporating a microphone. The microphone assembly includes a microphone interface that enables direct coupling of inputs from the microphone to a preamplifier. For the purpose, the microphone interface includes a DC servo loop. The DC servo loop provides a DC path for supplying a DC bias current to the microphone and an AC path to receive the AC output obtained from the microphone. The AC path and the DC path allow separation of the AC output of the microphone from the DC bias current. The microphone interface is implemented using reduced number of IC pin interfaces and external components to achieve compactness of the device.
Abstract translation: 这里描述的是用于装有麦克风的电子设备的麦克风组件。 麦克风组件包括麦克风接口，其能够将来自麦克风的输入直接耦合到前置放大器。 为此，麦克风接口包括一个直流伺服回路。 DC伺服环路提供用于向麦克风提供DC偏置电流的DC路径和用于接收从麦克风获得的AC输出的AC路径。 AC路径和DC路径允许麦克风的AC输出与DC偏置电流分离。 麦克风接口使用减少数量的IC引脚接口和外部组件实现，以实现设备的紧凑性。
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公开(公告)号：EP2330831A1
公开(公告)日：2011-06-08
申请号：EP10165571.0
申请日：2010-06-10
Applicant: ST-Ericsson SA , St-Ericsson India Pvt. Ltd.
Inventor： Agarwal, Rishi C. , Somayajula, Shyam S. , Cimaz, Lionel
CPC classification number: H04R3/00 , H03F3/187 , H03F3/45475 , H03F3/45928 , H03F2200/375 , H03F2203/45101 , H03F2203/45136 , H03F2203/45586 , H03F2203/45588 , H04R2410/00
Abstract: Described herein is a microphone assembly for an electronic device incorporating a microphone. The microphone assembly includes a microphone interface that enables direct coupling of inputs from the microphone to a preamplifier. For the purpose, the microphone interface includes a DC servo loop. The DC servo loop provides a DC path for supplying a DC bias current to the microphone and an AC path to receive the AC output obtained from the microphone. The AC path and the DC path allow separation of the AC output of the microphone from the DC bias current. The microphone interface is implemented using reduced number of IC pin interfaces and external components to achieve compactness of the device.
Abstract translation: 这里描述的是一种用于装有麦克风的电子设备的麦克风组件。 麦克风组件包括麦克风接口，其能够将来自麦克风的输入直接耦合到前置放大器。 为此，麦克风接口包括一个直流伺服回路。 DC伺服环路提供用于向麦克风提供DC偏置电流的DC路径和用于接收从麦克风获得的AC输出的AC路径。 AC路径和DC路径允许麦克风的AC输出与DC偏置电流分离。 使用减少数量的IC引脚接口和外部组件来实现麦克风接口，以实现设备的紧凑性。
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公开(公告)号：EP2507908B1
公开(公告)日：2017-06-28
申请号：EP09806055.1
申请日：2009-11-30
Inventor： SEEDHER, Ankit , PRABHU J, Raja , SOMAYAJULA S, Shyam
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公开(公告)号：EP2368382A2
公开(公告)日：2011-09-28
申请号：EP09820070.2
申请日：2009-12-23
Applicant: St-Ericsson India Pvt. Ltd. , ST-Ericsson SA
Inventor： KUMAR, Praveenya
IPC: H04W8/24
CPC classification number: H04W8/24 , H04W4/00 , H04W4/60 , H04W8/183 , H04W8/26 , H04W12/06 , H04W48/02
Abstract: A communication system for implementing locking of a device (102) is described. The device (102) can be locked to a network service provider for a validity period. After expiry of the validity period, the device (102) can be automatically unlocked. In locked mode of operation, an integrated circuit (IC) card tool-kit (214) that is used for housing the IC card, is disabled in the device (102). During the validity period, the device (102) transmits an equipment identity number to the network service provider while initiating a request for communication. The network service provider dynamically allocates a subscriber identity number to facilitate communication process. After expiry of the validity period, the device (102) is unlocked automatically and the IC tool-kit (214) of the device (102) is enabled.
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公开(公告)号：EP2368185A1
公开(公告)日：2011-09-28
申请号：EP09820078.5
申请日：2009-12-23
Applicant: St-Ericsson India Pvt. Ltd. , ST-Ericsson SA
Inventor： PADHY, Manasi , KUMAR T.C., Ashwin , SINGH, Ravi Kant , MYLARAPPA, Raghavendra , VYAS, Sachin
CPC classification number: G06F11/0793 , G06F3/0238 , G06F11/0742 , G06F11/0745 , H04M1/2472 , H04M1/7258
Abstract: Described herein are methods and systems for performing functions associated with a non-functional key of a keyboard present on electronic devices such as cell-phones, telephones, ATMs, etc. The electronic device is operated in a non-functional key (NFK) coding mode using NFK codes (108) that are provided to a memory component (202) of the electronic device (102). In the NFK coding mode, a user is allowed to enter functional keys in a coded sequence. Based on the NFK codes (108), the coded sequence is used to identify a function associated with a non-functional key of the keyboard and the identified function is indicated to a processor (204) of the electronic device (102) for execution.
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