公开(公告)号：US09886080B2

公开(公告)日：2018-02-06

申请号：US14698255

申请日：2015-04-28

Applicant: SanDisk Technologies Inc.

Inventor： Anil Kumar Thadi Suryaprakash ,  Krishnamurthy Dhakshinamurthy ,  Ajay Dhingra ,  Rampraveen Somasundaram ,  Narendhiran Chinnaanangur Ravimohan ,  Bhavin Odedara ,  Srikanth Bojja ,  Jayanth Thimmaiah

IPC: G06F3/00 ,  G06F13/12 ,  G06F13/42 ,  G06F1/32

CPC classification number: G06F1/3287 ,  G06F1/3253 ,  G06F1/3296 ,  Y02B70/123 ,  Y02B70/126 ,  Y02D10/151 ,  Y02D10/172

Abstract: A non-volatile memory system may include detection circuitry configured to detect that a host system is configured to initially communicate a clock signal and initialization command signals at a voltage level lower than its input/output driver circuit is configured to receive the signals. In response to the detection, the detection circuitry may switch a regulator circuit from a high voltage mode to a low voltage mode so that the input/output driver circuit is ready to receive the initialization commands at the lower voltage level.

公开(公告)号：US09747958B2

公开(公告)日：2017-08-29

申请号：US14928005

申请日：2015-10-30

Applicant: SanDisk Technologies Inc.

Inventor： Srinivasa Rao Sabbineni ,  Jayanth Mysore Thimmaiah ,  Anand Venkitachalam ,  Bhavin Odedara

IPC: G11C5/14 ,  G11C7/20

CPC classification number: G11C5/147 ,  G11C5/143 ,  G11C5/148 ,  G11C7/20 ,  G11C7/24

Abstract: An electronic device may receive a supply voltage from another external device, and detect when a level of the supply voltage drops below a threshold. In response, a controller of the electronic device may deactivate an interface configured for communication with the other electronic device. The controller may manage time periods and time period counters to determine when the check whether to reactivate the interface or conclude that the other external device is non-compliant.

公开(公告)号：US20150214965A1

公开(公告)日：2015-07-30

申请号：US14461921

申请日：2014-08-18

Applicant: SanDisk Technologies Inc.

Inventor： Bhavin Odedara ,  Deepak Pancholi ,  Vishal Rustagi

IPC: H03L7/087

CPC classification number: H03L7/087 ,  H03L7/07 ,  H03L7/0805 ,  H03L7/0816

Abstract: Tuning circuitry may include a controller that is configured to determine a phase difference for a pair of signals generated at different points in a master delay line of a master-slave delay locked loop (DLL) circuit. One of signals of the pair may be communicated through a slave delay line of the master-slave DLL circuit before the phase difference is determined. A programming delay value used to set a phase delay of the slave delay line may be adjusted or tuned based on the phase difference.

Abstract translation: 调谐电路可以包括控制器，其被配置为确定在主 - 从延迟锁定环（DLL）电路的主延迟线中的不同点产生的一对信号的相位差。 在确定相位差之前，该对的信号之一可以通过主 - 从DLL电路的从延迟线传送。 可以基于相位差来调整或调整用于设置从延迟线的相位延迟的编程延迟值。

公开(公告)号：US08856712B2

公开(公告)日：2014-10-07

申请号：US13659253

申请日：2012-10-24

Applicant: SanDisk Technologies Inc.

Inventor： Deepak Pancholi ,  Srikanth Bojja ,  Bhavin Odedara

IPC: G06F17/50 ,  H03K19/00 ,  H01L25/00 ,  H03K19/003 ,  H03K19/177 ,  H03K19/0175

CPC classification number: G06F17/5072 ,  G06F17/5045 ,  G06F17/5081 ,  H01L25/00 ,  H01L2924/0002 ,  H03K3/012 ,  H03K3/356104 ,  H03K19/003 ,  H03K19/0175 ,  H03K19/177 ,  H01L2924/00

Abstract: A flip-flop operating with standard threshold voltage MOS devices as compared with high threshold voltage MOS devices may have improved speed performance, but greater leakage current. Likewise, a flip-flop operating with high threshold voltage MOS devices may reduce the leakage current and have better power efficiency, but decreased speed and performance. An optimized flip-flop may include a combination of standard threshold voltage MOS devices and high threshold voltage MOS devices. The optimized flip-flop may have less leakage during stand-by mode as compared to a flip-flop with standard threshold voltage MOS devices. In addition, the optimized flip-flop may have better performance and speed as compared to a flip-flop with high threshold voltage MOS devices.

Abstract translation: 与高阈值电压MOS器件相比，使用标准阈值电压MOS器件的触发器可能具有改进的速度性能，但是更大的漏电流。 同样，用高阈值电压MOS器件工作的触发器可以减少漏电流并且具有更好的功率效率，但降低速度和性能。 优化的触发器可以包括标准阈值电压MOS器件和高阈值电压MOS器件的组合。 与具有标准阈值电压MOS器件的触发器相比，优化的触发器在待机模式下可能具有较少的泄漏。 此外，与具有高阈值电压MOS器件的触发器相比，优化的触发器可以具有更好的性能和速度。

公开(公告)号：US20170125068A1

公开(公告)日：2017-05-04

申请号：US14928005

申请日：2015-10-30

Applicant: SanDisk Technologies Inc.

Inventor： Srinivasa Rao Sabbineni ,  Jayanth Mysore Thimmaiah ,  Anand Venkitachalam ,  Bhavin Odedara

IPC: G11C5/14 ,  G11C7/20

CPC classification number: G11C5/147 ,  G11C5/143 ,  G11C5/148 ,  G11C7/20 ,  G11C7/24

Abstract: An electronic device may receive a supply voltage from another external device, and detect when a level of the supply voltage drops below a threshold. In response, a controller of the electronic device may deactivate an interface configured for communication with the other electronic device. The controller may manage time periods and time period counters to determine when the check whether to reactivate the interface or conclude that the other external device is non-compliant.

公开(公告)号：US09148157B2

公开(公告)日：2015-09-29

申请号：US14461921

申请日：2014-08-18

Applicant: SanDisk Technologies Inc.

Inventor： Bhavin Odedara ,  Deepak Pancholi ,  Vishal Rustagi

IPC: H03L7/06 ,  H03L7/087

CPC classification number: H03L7/087 ,  H03L7/07 ,  H03L7/0805 ,  H03L7/0816

Abstract: Tuning circuitry may include a controller that is configured to determine a phase difference for a pair of signals generated at different points in a master delay line of a master-slave delay locked loop (DLL) circuit. One of signals of the pair may be communicated through a slave delay line of the master-slave DLL circuit before the phase difference is determined. A programming delay value used to set a phase delay of the slave delay line may be adjusted or tuned based on the phase difference.

Abstract translation: 调谐电路可以包括控制器，其被配置为确定在主 - 从延迟锁定环（DLL）电路的主延迟线中的不同点产生的一对信号的相位差。 在确定相位差之前，该对的信号之一可以通过主 - 从DLL电路的从延迟线传送。 可以基于相位差来调整或调整用于设置从延迟线的相位延迟的编程延迟值。

公开(公告)号：US20150188491A1

公开(公告)日：2015-07-02

申请号：US14541863

申请日：2014-11-14

Applicant: SanDisk Technologies Inc.

Inventor： Deepak Pancholi ,  Bhavin Odedara

IPC: H03B5/12 ,  H03B5/02

CPC classification number: H03B5/1228 ,  H03B5/02 ,  H03B5/1215 ,  H03B5/1265 ,  H03J2200/09 ,  H03J2200/10

Abstract: A method for calibrating an oscillator in an electronic device and an electronic device configured for calibration are provided. Multiple signals are sent to the electronic device from another electronic device, such as from a host device. With knowledge of the time interval between the multiple signals, the electronic device may calibrate the oscillator in the electronic device. For example, the electronic device may be a USB-compliant electronic device. The USB-compliant electronic device may receive Start of Frame (SoF) signals from a host device, which in one USB implementation is received at 1 mSec intervals. The USB-compliant electronic device may count the output of the oscillator between receipt of different SoF signals in order to determine the frequency of the oscillator at different oscillator settings.

Abstract translation: 提供了一种用于校准电子设备中的振荡器的方法和被配置用于校准的电子设备。 多个信号从另一个电子设备（例如从主机设备）发送到电子设备。 通过了解多个信号之间的时间间隔，电子设备可以校准电子设备中的振荡器。 例如，电子设备可以是符合USB的电子设备。 USB兼容的电子设备可以从主机设备接收起始帧（SoF）信号，在一个USB实现中以1mSec的间隔被接收。 符合USB标准的电子设备可以在收到不同SoF信号之前对振荡器的输出进行计数，以便在不同的振荡器设置下确定振荡器的频率。

公开(公告)号：US09438164B2

公开(公告)日：2016-09-06

申请号：US14541863

申请日：2014-11-14

Applicant: SanDisk Technologies Inc.

Inventor： Deepak Pancholi ,  Bhavin Odedara

IPC: H03B5/12 ,  H03B5/02

CPC classification number: H03B5/1228 ,  H03B5/02 ,  H03B5/1215 ,  H03B5/1265 ,  H03J2200/09 ,  H03J2200/10

Abstract: A method for calibrating an oscillator in an electronic device and an electronic device configured for calibration are provided. Multiple signals are sent to the electronic device from another electronic device, such as from a host device. With knowledge of the time interval between the multiple signals, the electronic device may calibrate the oscillator in the electronic device. For example, the electronic device may be a USB-compliant electronic device. The USB-compliant electronic device may receive Start of Frame (SoF) signals from a host device, which in one USB implementation is received at 1 mSec intervals. The USB-compliant electronic device may count the output of the oscillator between receipt of different SoF signals in order to determine the frequency of the oscillator at different oscillator settings.

Abstract translation: 提供了一种用于校准电子设备中的振荡器的方法和被配置用于校准的电子设备。 多个信号从另一个电子设备（例如从主机设备）发送到电子设备。 通过了解多个信号之间的时间间隔，电子设备可以校准电子设备中的振荡器。 例如，电子设备可以是符合USB的电子设备。 符合USB标准的电子设备可以从主机设备接收起始帧（SoF）信号，这在一个USB实现中以1mSec的间隔被接收。 符合USB标准的电子设备可以在收到不同SoF信号之前对振荡器的输出进行计数，以便在不同的振荡器设置下确定振荡器的频率。

公开(公告)号：US09397669B2

公开(公告)日：2016-07-19

申请号：US14679345

申请日：2015-04-06

Applicant: SanDisk Technologies, Inc.

Inventor： Deepak Pancholi ,  Bhavin Odedara

IPC: H03L1/02 ,  H03B5/04 ,  H03L1/04 ,  H03B5/12

CPC classification number: H03L1/022 ,  H03B5/04 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03L1/02 ,  H03L1/026 ,  H03L1/04

Abstract: A method and device for calibrating an oscillator and a temperature sensor in an electronic device are provided. A same temperature cycle, which includes at least two distinct temperatures, may be used to obtain data to calibrate both the oscillator and the temperature sensor. One of the distinct temperatures may comprise an ambient temperature, and a second distinct temperature may comprise a heated temperature greater than the ambient temperature. The electronic device (or a calibration device separate from the electronic device) may receive the readings from the oscillator and the temperature sensor at the two distinct temperatures in the same temperature cycle, and may determine an oscillator correction factor and a temperature sensor correction factor.

公开(公告)号：US20150341038A1

公开(公告)日：2015-11-26

申请号：US14679345

申请日：2015-04-06

Applicant: SanDisk Technologies, Inc.

Inventor： Deepak Pancholi ,  Bhavin Odedara

IPC: H03L1/02 ,  H03B5/12

CPC classification number: H03L1/022 ,  H03B5/04 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03L1/02 ,  H03L1/026 ,  H03L1/04

Abstract: A method and device for calibrating an oscillator and a temperature sensor in an electronic device are provided. A same temperature cycle, which includes at least two distinct temperatures, may be used to obtain data to calibrate both the oscillator and the temperature sensor. One of the distinct temperatures may comprise an ambient temperature, and a second distinct temperature may comprise a heated temperature greater than the ambient temperature. The electronic device (or a calibration device separate from the electronic device) may receive the readings from the oscillator and the temperature sensor at the two distinct temperatures in the same temperature cycle, and may determine an oscillator correction factor and a temperature sensor correction factor.

Abstract translation: 提供了一种用于校准电子设备中的振荡器和温度传感器的方法和装置。 可以使用包括至少两个不同温度的相同温度循环来获得校准振荡器和温度传感器的数据。 不同温度之一可以包括环境温度，第二不同温度可以包括大于环境温度的加热温度。 电子设备（或与电子设备分离的校准设备）可以在相同温度循环中的两个不同温度下从振荡器和温度传感器接收读数，并且可以确定振荡器校正因子和温度传感器校正因子。