公开(公告)号：US07479911B2

公开(公告)日：2009-01-20

申请号：US11895630

申请日：2007-08-24

Applicant: Shantanu Chakrabartty

Inventor： Shantanu Chakrabartty

IPC: H03M3/00

CPC classification number: H03M3/466

Abstract: A method is provided for multi-channel analog-to-digital conversion. The method includes: receiving an input vector which represents a plurality of analog signals; transforming the input vector using a linear transformation matrix; converting the transformed input vector to a digital stream using an array of sigma-delta converter; and adapting the linear transform matrix to maximize de-correlation between the signals represented in the input vector.

Abstract translation: 提供了一种用于多通道模数转换的方法。 该方法包括：接收表示多个模拟信号的输入向量; 使用线性变换矩阵变换输入向量; 使用Σ-Δ转换器的阵列将变换的输入向量转换为数字流; 并适应线性变换矩阵以最大化在输入向量中表示的信号之间的去相关。

公开(公告)号：US11996697B2

公开(公告)日：2024-05-28

申请号：US16810837

申请日：2020-03-05

Applicant: Shantanu Chakrabartty ,  Kenji Aono ,  Sri Harsha Kondapalli ,  Owen Pochettino

Inventor： Shantanu Chakrabartty ,  Kenji Aono ,  Sri Harsha Kondapalli ,  Owen Pochettino

IPC: H02J50/00 ,  B60W20/20 ,  B60W20/50 ,  H02J50/27 ,  H02J50/80 ,  H04W4/38 ,  H04W4/44 ,  H04W4/80

CPC classification number: H02J50/001 ,  B60W20/20 ,  B60W20/50 ,  H02J50/27 ,  H02J50/80 ,  H04W4/38 ,  H04W4/44 ,  H04W4/80

Abstract: A hybrid-powered sensing device is disclosed that includes a power source coupled to a sensing module via an RF-triggered load switching module.

公开(公告)号：US20210232977A1

公开(公告)日：2021-07-29

申请号：US16999082

申请日：2020-08-21

Applicant: Shantanu Chakrabartty ,  Oindrila Chatterjee

Inventor： Shantanu Chakrabartty ,  Oindrila Chatterjee

IPC: G06N20/10

Abstract: Devices, systems, and methods related to an energy-efficient machine learning framework which exploits structural and functional similarities between a machine learning network and a general electrical network satisfying the Tellegen's theorem are described.

公开(公告)号：US20190094078A1

公开(公告)日：2019-03-28

申请号：US16079848

申请日：2017-02-28

Applicant: Shantanu Chakrabartty ,  Liang Zhou

Inventor： Shantanu Chakrabartty ,  Liang Zhou

IPC: G01K3/04

Abstract: A sensor system for detecting events is provided. The sensor system includes a sensor and a read-out interface. The sensor includes a transducer and a memory device. The transducer detects an event and generates a sensor signal in response to the event. The memory device includes a floating-gate with a sensing interface coupled to the transducer. The sensing interface has an energy barrier that leaks electrons at a predetermined electron leakage rate through Fowler-Nordheim (F-N) tunneling. The sensor signal alters a geometry of the energy barrier to change the electron leakage rate. The read-out interface is communicatively coupled to the memory device and retrieves data stored on the memory device for analysis. The event and a timestamp of the event are identifiable from the stored data.

公开(公告)号：US11853878B2

公开(公告)日：2023-12-26

申请号：US16462805

申请日：2017-11-22

Applicant: Shantanu Chakrabartty ,  Ahana Gangopadhyay

Inventor： Shantanu Chakrabartty ,  Ahana Gangopadhyay

IPC: G06N3/08 ,  G06N3/049 ,  G06N20/10

CPC classification number: G06N3/08 ,  G06N3/049 ,  G06N20/10

Abstract: A growth transform neural network system is disclosed that includes a computing device with at least one processor and a memory storing a plurality of modules, including a growth transform neural network module, a growth transform module, and a network convergence module. The growth transform neural network module defines a plurality of mirrored neuron pairs that include a plurality of first components and a plurality of second components. Each first and second component is connected by a normalization link. The first components are interconnected according to an interconnection matrix, and the second components are interconnected according to the interconnection matrix. The growth transform module updates each first component of each mirrored neuron pair according to a growth transform neuron model. The network convergence module converges the plurality of mirrored neuron pairs to a steady state condition by solving a system objective function subject to at least one normalization constraint.

公开(公告)号：US11041764B2

公开(公告)日：2021-06-22

申请号：US16079848

申请日：2017-02-28

Applicant: Shantanu Chakrabartty ,  Liang Zhou

Inventor： Shantanu Chakrabartty ,  Liang Zhou

IPC: G01K1/14 ,  G01K3/04 ,  G01H11/06

Abstract: A sensor system for detecting events is provided. The sensor system includes a sensor and a read-out interface. The sensor includes a transducer and a memory device. The transducer detects an event and generates a sensor signal in response to the event. The memory device includes a floating-gate with a sensing interface coupled to the transducer. The sensing interface has an energy barrier that leaks electrons at a predetermined electron leakage rate through Fowler-Nordheim (F-N) tunneling. The sensor signal alters a geometry of the energy barrier to change the electron leakage rate. The read-out interface is communicatively coupled to the memory device and retrieves data stored on the memory device for analysis. The event and a timestamp of the event are identifiable from the stored data.

公开(公告)号：US20200287411A1

公开(公告)日：2020-09-10

申请号：US16810837

申请日：2020-03-05

Applicant: Shantanu Chakrabartty ,  Kenji Aono ,  Sri Harsha Kondapalli ,  Owen Pochettino

Inventor： Shantanu Chakrabartty ,  Kenji Aono ,  Sri Harsha Kondapalli ,  Owen Pochettino

IPC: H02J50/00 ,  H02J50/27 ,  H02J50/80 ,  B60W20/20 ,  B60W20/50

Abstract: A hybrid-powered sensing device is disclosed that includes a power source coupled to a sensing module via an RF-triggered load switching module.

公开(公告)号：US20190000419A1

公开(公告)日：2019-01-03

申请号：US16023761

申请日：2018-06-29

Applicant: Shantanu Chakrabartty ,  Yarub Alazzawi ,  Srikanth Signamaneni ,  Keng-Ku Liu ,  Mingquan Yuan

Inventor： Shantanu Chakrabartty ,  Yarub Alazzawi ,  Srikanth Signamaneni ,  Keng-Ku Liu ,  Mingquan Yuan

IPC: A61B8/00 ,  G01N29/24 ,  H01L41/113

Abstract: A sensor system includes a sensor module that is embedded in a target environment and a signal system. The sensor module includes an active sensor of a first type that detects a target element in the target environment and a reference sensor of the first type that prevents detection of target elements by the reference sensor. The active sensor and the reference sensor receive an ultrasonic signal and respectively generate a first response signal and a second response signal. The first response signal is at least partially as a function of the detected target element. The signal system includes an ultrasonic transducer that generates the ultrasonic signal and receives the first and second response signals, and a controller communicatively coupled to the ultrasonic transducer. The controller identifies the detected target element based at least partially on the first and second response signals.

公开(公告)号：US08060810B2

公开(公告)日：2011-11-15

申请号：US11784519

申请日：2007-04-06

Applicant: Shantanu Chakrabartty

Inventor： Shantanu Chakrabartty

IPC: H03M13/03 ,  H03M13/00

CPC classification number: H03M13/1134 ,  H03M13/1117 ,  H03M13/112 ,  H03M13/1191 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/6583 ,  H03M13/6597

Abstract: A margin decoding communications system includes a circuit receiving a message encoded by an iterative code and processing the message into scores. A normalization process module receives the scores and iteratively approximates log-map normalization factors of the scores to generate approximation normalization factors. An element receives the message and the approximation normalization factors and decodes the received message based on the approximation normalization factors.

Abstract translation: 边缘解码通信系统包括接收由迭代代码编码的消息并将消息处理成分数的电路。 归一化处理模块接收得分并迭代地近似得分的对数图归一化因子，以产生近似归一化因子。 元素接收消息和近似归一化因子，并根据近似归一化因子对接收到的消息进行解码。

公开(公告)号：US07757565B2

公开(公告)日：2010-07-20

申请号：US12273844

申请日：2008-11-19

Applicant: Shantanu Chakrabartty

Inventor： Shantanu Chakrabartty

IPC: G01N3/32

CPC classification number: A61F2/468 ,  A61F2002/30087 ,  A61F2002/3067 ,  A61F2002/488 ,  A61F2250/0002 ,  G01L5/0052 ,  G01M5/00 ,  G01N29/043 ,  G01N29/2481 ,  G01N2203/0073 ,  G01N2203/0623 ,  G01N2291/02827 ,  H02N2/18

Abstract: A self-powered sensor is provided for strain-rate monitoring and other low power requirement applications. The self-powered sensor is comprised of: a piezoelectric transducer; a non-volatile memory comprised of at least one floating gate transistor; a current reference circuit adapted to receive a voltage signal from the piezoelectric transducer and operable to output a reference current into the non-volatile memory; an impact-monitoring circuit having a triggering circuit and a switch; the triggering circuit adapted to receive the voltage signal from the piezoelectric transducer and operable to control the switch based on the rate of change of the voltage signal.

Abstract translation: 提供自供电传感器用于应变率监测和其他低功率需求应用。 自供电传感器包括：压电换能器; 由至少一个浮栅晶体管构成的非易失性存储器; 电流参考电路，其适于从所述压电换能器接收电压信号并且可操作以将参考电流输出到所述非易失性存储器中; 具有触发电路和开关的冲击监视电路; 所述触发电路适于从压电换能器接收电压信号并且可操作以基于电压信号的变化率来控制开关。