Patents by Inventor Nitin Chawla
Nitin Chawla has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210072894Abstract: A memory array arranged as a plurality of memory cells. The memory cells are configured to operate at a determined voltage. A memory management circuitry coupled to the plurality of memory cells tags a first set of the plurality of memory cells as low-voltage cells and tags a second set of the plurality of memory cells as high-voltage cells. A power source provides a low voltage to the first set of memory cells and provides a high voltage to the second set of memory cells based on the tags.Type: ApplicationFiled: September 4, 2020Publication date: March 11, 2021Inventors: Nitin CHAWLA, Giuseppe DESOLI, Anuj GROVER, Thomas BOESCH, Surinder Pal SINGH, Manuj AYODHYAWASI
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Publication number: 20200411089Abstract: A memory management circuit stores information indicative of reliability-types of regions of a memory array. The memory management circuitry responds to a request to allocate memory in the memory array to a process by determining a request type associated with the request to allocate memory. Memory of the memory array is allocated to the process based on the request type associated with the request to allocate memory and the stored information indicative of reliability-types of regions of the memory array. The memory array may be a shared memory array. The memory array may be organized into rows and columns, and the regions of the memory array may be the rows of the memory array.Type: ApplicationFiled: June 5, 2020Publication date: December 31, 2020Inventors: Nitin CHAWLA, Tanmoy ROY, Anuj GROVER
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Publication number: 20200388330Abstract: An in-memory compute (IMC) device includes a compute array having a first plurality of cells. The compute array is arranged as a plurality of rows of cells intersecting a plurality of columns of cells. Each cell of the first plurality of cells is identifiable by its corresponding row and column. The IMC device also includes a plurality of computation engines and a plurality of bias engines. Each computation engine is respectively formed in a different one of a second plurality of cells, wherein the second plurality of cells is formed from cells of the first plurality. Each computation engine is formed at a respective row and column intersection. Each bias engine of the plurality of bias engines is arranged to computationally combine an output from at least one of the plurality of computation engines with a respective bias value.Type: ApplicationFiled: May 22, 2020Publication date: December 10, 2020Inventors: Anuj GROVER, Tanmoy ROY, Nitin CHAWLA
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Publication number: 20200387352Abstract: A memory array arranged in multiple columns and rows. Computation circuits that each calculate a computation value from cell values in a corresponding column. A column multiplexer cycles through multiple data lines that each corresponds to a computation circuit. Cluster cycle management circuitry determines a number of multiplexer cycles based on a number of columns storing data of a compute cluster. A sensing circuit obtains the computation values from the computation circuits via the column multiplexer as the column multiplexer cycles through the data lines. The sensing circuit combines the obtained computation values over the determined number of multiplexer cycles. A first clock may initiate the multiplexer to cycle through its data lines for the determined number of multiplexer cycles, and a second clock may initiate each individual cycle. The multiplexer or additional circuitry may be utilized to modify the order in which data is written to the columns.Type: ApplicationFiled: June 2, 2020Publication date: December 10, 2020Inventors: Nitin CHAWLA, Tanmoy ROY, Anuj GROVER, Giuseppe DESOLI
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Publication number: 20180189229Abstract: Embodiments are directed towards a system on chip (SoC) that implements a deep convolutional network heterogeneous architecture. The SoC includes a system bus, a plurality of addressable memory arrays coupled to the system bus, at least one applications processor core coupled to the system bus, and a configurable accelerator framework coupled to the system bus. The configurable accelerator framework is an image and deep convolutional neural network (DCNN) co-processing system. The SoC also includes a plurality of digital signal processors (DSPs) coupled to the system bus, wherein the plurality of DSPs coordinate functionality with the configurable accelerator framework to execute the DCNN.Type: ApplicationFiled: February 2, 2017Publication date: July 5, 2018Inventors: Giuseppe DESOLI, Thomas BOESCH, Nitin CHAWLA, Surinder Pal SINGH, Elio GUIDETTI, Fabio Giuseppe DE AMBROGGI, Tommaso MAJO, Paolo Sergio ZAMBOTTI
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Patent number: 9021324Abstract: An arrangement including at least one path, at least one replica path, the at least one replica path corresponding to a respective path, a controller configured to use control information derived from the at least one replica path, at least one of the paths comprising a monitoring unit configured to provide monitor information to the controller, the controller being configured to modify the control information in dependence on the monitor information.Type: GrantFiled: December 21, 2010Date of Patent: April 28, 2015Assignee: STMicroelectronics International N.V.Inventors: Nitin Chawla, Kallol Chatterjee, Chittoor Parthasarathy
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Patent number: 8994416Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. This application presents a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.Type: GrantFiled: October 3, 2013Date of Patent: March 31, 2015Assignees: STMicroelectronics International N.V., STMicroelectronics SAInventors: Chittoor Parthasarathy, Nitin Chawla, Kallol Chatterjee, Pascal Urard
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Publication number: 20140035644Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. This application presents a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.Type: ApplicationFiled: October 3, 2013Publication date: February 6, 2014Applicants: STMicroelectronics SA, STMicroelectronics International N.V.Inventors: Chittoor PARTHASARATHY, Nitin CHAWLA, Kallol CHATTERJEE, Pascal URARD
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Patent number: 8552765Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. We present a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.Type: GrantFiled: June 30, 2011Date of Patent: October 8, 2013Assignees: STMicroelectronics International N.V., STMicroelectronics SAInventors: Chittoor Parthasarathy, Nitin Chawla, Kallol Chatterjee, Pascal Urard
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Patent number: 8269545Abstract: A system on chip (SoC) has a digital domain. An adaptive voltage/frequency scaling circuit includes a critical path replica circuit with respect to that digital domain. The critical path replica circuit generates a margin signal, and the adaptive voltage scaling circuit responds to the margin signal by decreasing bias voltage (and/or increasing clock frequency) applied to the digital domain of the system on chip so as to recover available margin. A fail-safe timing sensor is included within the digital domain of the system on chip. The timing sensor generates a flag signal when timing criteria within the digital domain are violated. The adaptive voltage scaling circuit responds to the flag signal by increasing the bias voltage (and/or decreasing the clock frequency) applied to the digital domain of the system on chip so as to implement a recovery operation.Type: GrantFiled: October 31, 2011Date of Patent: September 18, 2012Assignee: STMicroelectronics International N.V.Inventors: Nitin Chawla, Chittoor Parthasarathy, Kallol Chatterjee, Promod Kumar
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Publication number: 20120176173Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. We present a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.Type: ApplicationFiled: June 30, 2011Publication date: July 12, 2012Applicants: STMICROELECTRONICS SA, STMicroelectronics Pvt Ltd.Inventors: Chittoor PARTHASARATHY, Nitin Chawla, Kallol Chatterjee, Pascal Urard
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Publication number: 20120158339Abstract: An arrangement including at least one path, at least one replica path, the at least one replica path corresponding to a respective path, a controller configured to use control information derived from the at least one replica path, at least one of the paths comprising a monitoring unit configured to provide monitor information to the controller, the controller being configured to modify the control information in dependence on the monitor information.Type: ApplicationFiled: December 21, 2010Publication date: June 21, 2012Applicant: STMicroelectronics Pvt. Ltd.Inventors: Nitin Chawla, Kallol Chatterjee, Chittoor Parthasarathy
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Patent number: 8154335Abstract: A system on chip (SoC) has a digital domain. An adaptive voltage/frequency scaling circuit includes a critical path replica circuit with respect to that digital domain. The critical path replica circuit generates a margin signal, and the adaptive voltage scaling circuit responds to the margin signal by decreasing bias voltage (and/or increasing clock frequency) applied to the digital domain of the system on chip so as to recover available margin. A fail-safe timing sensor is included within the digital domain of the system on chip. The timing sensor generates a flag signal when timing criteria within the digital domain are violated. The adaptive voltage scaling circuit responds to the flag signal by increasing the bias voltage (and/or decreasing the clock frequency) applied to the digital domain of the system on chip so as to implement a recovery operation.Type: GrantFiled: September 18, 2009Date of Patent: April 10, 2012Assignee: STMicroelectronics Pvt. Ltd.Inventors: Nitin Chawla, Chittoor Parthasarathy, Kallol Chatterjee, Promod Kumar
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Publication number: 20120044005Abstract: A system on chip (SoC) has a digital domain. An adaptive voltage/frequency scaling circuit includes a critical path replica circuit with respect to that digital domain. The critical path replica circuit generates a margin signal, and the adaptive voltage scaling circuit responds to the margin signal by decreasing bias voltage (and/or increasing clock frequency) applied to the digital domain of the system on chip so as to recover available margin. A fail-safe timing sensor is included within the digital domain of the system on chip. The timing sensor generates a flag signal when timing criteria within the digital domain are violated. The adaptive voltage scaling circuit responds to the flag signal by increasing the bias voltage (and/or decreasing the clock frequency) applied to the digital domain of the system on chip so as to implement a recovery operation.Type: ApplicationFiled: October 31, 2011Publication date: February 23, 2012Applicant: STMicroelectronics Pvt. Ltd.Inventors: Nitin Chawla, Chittoor Parthasarathy, Kallol Chatterjee, Promod Kumar
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Patent number: 8037336Abstract: The present disclosure provides a spread spectrum clock generation system having a digitally controlled phase locked loop (PLL) and a digital frequency profile generator to create a near optimal frequency modulation profile for the purpose of achieving spectral flatness in the output frequency modulated clock. The circuit is combined with a multilevel error feedback noise shaping structure that provides the required noise transfer function for the quantization noise but maintains a unity gain all pass signal transfer function. This arrangement offers minimal degradation of the in-band signal-to-noise ratio (SNR) at the cost of higher out-of-band noise.Type: GrantFiled: May 15, 2007Date of Patent: October 11, 2011Assignee: STMicroelectronics PVT, Ltd.Inventor: Nitin Chawla
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Patent number: 7917569Abstract: A device for implementing a sum-of-products expression includes a first set of 2-input Shift-and-Add (2SAD) blocks receiving a coefficient set/complex sum-of-products expression for generating a first set of partially optimized expression terms by applying recursive optimization therein, a second set of 1-input Shift-and-Add (1SAD) blocks receiving response from the 2SAD blocks for generating a second set of partially optimized expression terms by applying vertical optimization therein, a third set of 2SAD blocks receiving recursively and vertically optimized response from the first set of 2SAD block and the second set of 1SAD blocks for generating a third set of partially optimized expression terms by applying horizontal optimization therein, a fourth set of 2SAD blocks receiving response from the blocks for generating a fourth set of partially optimized expression terms by applying decomposition and factorization, and a fifth set of 2SAD blocks receiving response from the fourth set of 2SAD blocks, for geneType: GrantFiled: October 20, 2005Date of Patent: March 29, 2011Assignee: STMicroelectronics Pvt. Ltd.Inventors: Aditya Bhuvanagiri, Rakesh Malik, Nitin Chawla
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Publication number: 20110068858Abstract: A system on chip (SoC) has a digital domain. An adaptive voltage/frequency scaling circuit includes a critical path replica circuit with respect to that digital domain. The critical path replica circuit generates a margin signal, and the adaptive voltage scaling circuit responds to the margin signal by decreasing bias voltage (and/or increasing clock frequency) applied to the digital domain of the system on chip so as to recover available margin. A fail-safe timing sensor is included within the digital domain of the system on chip. The timing sensor generates a flag signal when timing criteria within the digital domain are violated. The adaptive voltage scaling circuit responds to the flag signal by increasing the bias voltage (and/or decreasing the clock frequency) applied to the digital domain of the system on chip so as to implement a recovery operation.Type: ApplicationFiled: September 18, 2009Publication date: March 24, 2011Applicant: STMicroelectronics Pvt. Ltd.Inventors: Nitin Chawla, Chittoor Parthasarathy, Kallol Chatterjee, Promod Kumar
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Patent number: 7698355Abstract: A minimal area integrated polyphase interpolation filter uses a symmetry of coefficients for a channel of input data. The filter includes an input interface block for synchronizing the input signal to a first internal clock signal; a memory block for providing multiple delayed output signals; a multiplexer input interface block for outputting a selected plurality of signals for generating mirror image coefficient sets in response to a second set of internal control signals, a coefficient block for generating mirror image and/or symmetric coefficient sets, and to output a plurality of filtered signals, an output multiplexer block for performing selection, gain control and data width control on said plurality of filtered signals, an output register block synchronizing the filtered signals, and a control block generating clock signals for realization of the filter and to delay between two channels to access a coefficient set, thereby minimizing hardware in the filter.Type: GrantFiled: August 29, 2005Date of Patent: April 13, 2010Assignee: STMicroelectronics Pvt. Ltd.Inventors: Aditya Bhuvanagiri, Harvinder Singh, Rakesh Malik, Nitin Chawla
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Publication number: 20080129351Abstract: The present disclosure provides a spread spectrum clock generation system having a digitally controlled phase locked loop (PLL) and a digital frequency profile generator to create a near optimal frequency modulation profile for the purpose of achieving spectral flatness in the output frequency modulated clock. The circuit is combined with a multilevel error feedback noise shaping structure that provides the required noise transfer function for the quantization noise but maintains a unity gain all pass signal transfer function. This arrangement offers minimal degradation of the in-band signal-to-noise ratio (SNR) at the cost of higher out-of-band noise.Type: ApplicationFiled: May 15, 2007Publication date: June 5, 2008Applicant: STMicroelectronics Pvt. Ltd.Inventor: Nitin Chawla
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Publication number: 20060153321Abstract: A device for implementing a sum-of-products expression includes a first set of 2-input Shift-and-Add (2SAD) blocks receiving a coefficient set/complex sum-of-products expression for generating a first set of partially optimized expression terms by applying recursive optimization therein, a second set of 1-input Shift-and-Add (1SAD) blocks receiving response from the 2SAD blocks for generating a second set of partially optimized expression terms by applying vertical optimization therein, a third set of 2SAD blocks receiving recursively and vertically optimized response from the first set of 2SAD block and the second set of 1SAD blocks for generating a third set of partially optimized expression terms by applying horizontal optimization therein, a fourth set of 2SAD blocks receiving response from the blocks for generating a fourth set of partially optimized expression terms by applying decomposition and factorization, and a fifth set of 2SAD blocks receiving response from the fourth set of 2SAD blocks, for geneType: ApplicationFiled: October 20, 2005Publication date: July 13, 2006Applicant: STMicroelectronics Pvt.Ltd.Inventors: Aditya Bhuvanagiri, Rakesh Malik, Nitin Chawla