Patents by Inventor Dharmesh Kumar Sonkar
Dharmesh Kumar Sonkar 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: 20250246233Abstract: A storage system and circuits therefor. A storage system includes a bitcell array comprising a plurality of storage cells arranged in one or more columns and one or more rows; a read bitline associated with a first column to access storage cells of the first column, wherein the read bitline has a first keeper circuit coupled thereto; and a tracker bitline associated with the read bitline, wherein the tracker bitline has a second keeper circuit coupled thereto, and wherein the tracker bitline is configured such that a behaviour thereof is to substantially match a behaviour of the read bitline.Type: ApplicationFiled: March 20, 2024Publication date: July 31, 2025Inventors: Sunil KUMAR KROVI, Dharmesh Kumar SONKAR, Rangavdhoot BHUPENDRAKUMAR RAWAL
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Publication number: 20250246219Abstract: A storage system and circuits therefor. A storage system includes a bitcell array comprising a plurality of storage cells arranged in one or more columns and one or more rows; a latch circuit configured to output a latch signal responsive to a latch control signal and a data signal from a global data line during a read operation of a storage cell of the plurality of storage cells; a latch control circuit configured to provide the latch control signal to the latch circuit, where the latch control circuit comprises a first signal propagation path for a first mode of operation and a second signal propagation path for a second mode of operation, and wherein the first signal propagation path is to delay propagation of a pulse signal through the first signal propagation path by a time (?t) compared to a propagation of the pulse signal through the second propagation path.Type: ApplicationFiled: March 20, 2024Publication date: July 31, 2025Inventors: Sunil KUMAR KROVI, Dharmesh Kumar SONKAR, Rangavdhoot BHUPENDRAKUMAR RAWAL
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Patent number: 9966131Abstract: A memory includes a memory cell that operates in response to an array supply voltage, and a corresponding pair of bit lines that are pre-charged to a periphery supply voltage prior to each access of the memory cell. A sense amplifier coupled to the bit lines operates in response to the periphery supply voltage. The periphery supply voltage is less than the array supply voltage to enable power savings within the memory. A first pair of transistors is configured to couple the sense amplifier to the bit lines during write accesses to the memory cell, thereby boosting the write voltages applied to the bit lines during a write operation. That is, the first pair of transistors is configured such that the sense amplifier pulls one of the bit lines toward the periphery supply voltage (and the other one of the bit lines toward the ground supply voltage) during write accesses.Type: GrantFiled: August 21, 2015Date of Patent: May 8, 2018Assignee: Synopsys, Inc.Inventors: Dharmesh Kumar Sonkar, Niranjan Behera
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Patent number: 9865334Abstract: A voltage supply circuit for a memory cell including a first circuit coupled between a first voltage supply and a first voltage supply terminal of the memory cell, and a second circuit coupled between the first voltage supply and a second voltage supply terminal of the memory cell. The first circuit is controlled by a first bit line of the memory cell, and the second circuit is controlled by a second bit line of the memory cell. The first and second circuits provide the first supply voltage to the first and second voltage supply terminals of the memory cell, respectively, during a pre-charge phase. During a write operation, only one of the first circuit and the second circuit provides the first supply voltage to the memory cell, and the other one of the first circuit and the second circuit provides an adjusted voltage (e.g., a collapsed voltage) to the memory cell.Type: GrantFiled: December 2, 2016Date of Patent: January 9, 2018Assignee: Synopsys, Inc.Inventor: Dharmesh Kumar Sonkar
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Publication number: 20170243635Abstract: A voltage supply circuit for a memory cell including a first circuit coupled between a first voltage supply and a first voltage supply terminal of the memory cell, and a second circuit coupled between the first voltage supply and a second voltage supply terminal of the memory cell. The first circuit is controlled by a first bit line of the memory cell, and the second circuit is controlled by a second bit line of the memory cell. The first and second circuits provide the first supply voltage to the first and second voltage supply terminals of the memory cell, respectively, during a pre-charge phase. During a write operation, only one of the first circuit and the second circuit provides the first supply voltage to the memory cell, and the other one of the first circuit and the second circuit provides an adjusted voltage (e.g., a collapsed voltage) to the memory cell.Type: ApplicationFiled: December 2, 2016Publication date: August 24, 2017Inventor: Dharmesh Kumar Sonkar
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Publication number: 20170053695Abstract: A memory includes a memory cell that operates in response to an array supply voltage, and a corresponding pair of bit lines that are pre-charged to a periphery supply voltage prior to each access of the memory cell. A sense amplifier coupled to the bit lines operates in response to the periphery supply voltage. The periphery supply voltage is less than the array supply voltage to enable power savings within the memory. A first pair of transistors is configured to couple the sense amplifier to the bit lines during write accesses to the memory cell, thereby boosting the write voltages applied to the bit lines during a write operation. That is, the first pair of transistors is configured such that the sense amplifier pulls one of the bit lines toward the periphery supply voltage (and the other one of the bit lines toward the ground supply voltage) during write accesses.Type: ApplicationFiled: August 21, 2015Publication date: February 23, 2017Inventors: Dharmesh Kumar Sonkar, Niranjan Behera
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Publication number: 20130106498Abstract: Circuits, and methods for reducing standby leakage power in Integrated Circuit (ICs) are disclosed. In an embodiment, an IC includes a core circuit, a first switch and a second switch, where the first switch is coupled between a power terminal of the core circuit and a power supply and the second switch is coupled between a ground terminal of the core circuit and a ground supply. The first switch and the second switch are configured to power ON and OFF the core circuit. The IC includes a first feedback circuit configured to control ON and OFF states of the first switch based on voltage at the power terminal, and a second feedback circuit configured to control ON and OFF states of the second switch based on voltage at the ground terminal of the core circuit during the standby mode for maintaining the logic state of the core circuit.Type: ApplicationFiled: October 26, 2011Publication date: May 2, 2013Applicant: Texas Instruments IncorporatedInventors: Dharmesh Kumar Sonkar, Shahid Ali
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Patent number: 8416013Abstract: Circuits, and methods for reducing standby leakage power in Integrated Circuit (ICs) are disclosed. In an embodiment, an IC includes a core circuit, a first switch and a second switch, where the first switch is coupled between a power terminal of the core circuit and a power supply and the second switch is coupled between a ground terminal of the core circuit and a ground supply. The first switch and the second switch are configured to power ON and OFF the core circuit. The IC includes a first feedback circuit configured to control ON and OFF states of the first switch based on voltage at the power terminal, and a second feedback circuit configured to control ON and OFF states of the second switch based on voltage at the ground terminal of the core circuit during the standby mode for maintaining the logic state of the core circuit.Type: GrantFiled: October 26, 2011Date of Patent: April 9, 2013Assignee: Texas Instruments IncorporatedInventors: Dharmesh Kumar Sonkar, Shahid Ali
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Patent number: 7804699Abstract: A segmented ternary content addressable memory (TCAM) search architecture is disclosed. In one embodiment, a TCAM device with a row of TCAM cells includes a first segment of the TCAM cells for determining a match of corresponding search bits of a search string with a first portion of a stored string in the first segment of the TCAM cells, an evaluation module for generating a search enable signal if the match of the corresponding search bits with the first portion of the stored string is determined, and a second segment of the TCAM cells for determining a match of remaining search bits of the search string with a remaining portion of the stored string in response to the search enable signal.Type: GrantFiled: December 26, 2008Date of Patent: September 28, 2010Assignee: Texas Instruments IncorporatedInventors: Sharad Kumar Gupta, Morris Dwayne Ward, Rashmi Sachan, Dharmesh Kumar Sonkar, Sunil Kumar Misra, Yunchen Qiu, Anuroop S. S. R Vuppala
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Publication number: 20100165690Abstract: A segmented ternary content addressable memory (TCAM) search architecture is disclosed. In one embodiment, a TCAM device with a row of TCAM cells includes a first segment of the TCAM cells for determining a match of corresponding search bits of a search string with a first portion of a stored string in the first segment of the TCAM cells, an evaluation module for generating a search enable signal if the match of the corresponding search bits with the first portion of the stored string is determined, and a second segment of the TCAM cells for determining a match of remaining search bits of the search string with a remaining portion of the stored string in response to the search enable signal.Type: ApplicationFiled: December 26, 2008Publication date: July 1, 2010Inventors: Sharad Kumar Gupta, Morris Dwayne Ward, Rashmi Sachan, Dharmesh Kumar Sonkar, Sunil Kumar Misra, Yunchen Qiu, Anuroop S.S.R. Vuppala