Patents by Inventor Chinh Vo
Chinh Vo 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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Patent number: 11269555Abstract: An apparatus is provided that includes a memory die including a pipeline circuit coupled to a memory structure. The memory die is configured to execute a first command by receiving in the pipeline circuit data to be written to the memory structure, processing the received data in the pipeline circuit and providing the processed data to the memory structure, predicting that the pipeline circuit has completed processing the received data, and ending execution of the first command based on the prediction.Type: GrantFiled: June 22, 2020Date of Patent: March 8, 2022Assignee: SanDisk Technologies LLCInventors: Harihara Sravan, Nihal Singla, Chinh Vo
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Publication number: 20210397372Abstract: An apparatus is provided that includes a memory die including a pipeline circuit coupled to a memory structure. The memory die is configured to execute a first command by receiving in the pipeline circuit data to be written to the memory structure, processing the received data in the pipeline circuit and providing the processed data to the memory structure, predicting that the pipeline circuit has completed processing the received data, and ending execution of the first command based on the prediction.Type: ApplicationFiled: June 22, 2020Publication date: December 23, 2021Applicant: SanDisk Technologies LLCInventors: Harihara Sravan, Nihal Singla, Chinh Vo
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Patent number: 10133288Abstract: An output circuit at the output of an LDO regulator has two FETs (Field-Effect Transistors), a current source and a capacitor. The first FET is connected to the LDO output and a second voltage supply. The second FET is connected in series with the current source between the LDO output and the second voltage supply. The second FET is connected to the first FET in such a matter that a bias voltage is supplied to the first FET so that in static conditions the first FET draws predetermined amounts of current from the LDO output and to divert the predetermined amounts of current to the LDO output or to draw additional amounts of current from the LDO output to compensate for transient currents on the LDO output and to reduce variations in the output voltage of the LDO regulator.Type: GrantFiled: September 30, 2016Date of Patent: November 20, 2018Assignee: Synopsys, Inc.Inventors: Wen Fang, Chinh Vo
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Patent number: 9959934Abstract: A differential current sensing circuit architecture is used with an integrated circuit NVM memory block in which a selected memory cell and a related complementary memory cell are accessed at the same time for reading. The circuit architecture is used not only for normal operations for reading the logic states of a selected memory cell and its complementary memory cell after programming, but also for reading the logic states of a selected memory cell and its complementary memory cell before programming for the detecting of faults in memory cells.Type: GrantFiled: September 30, 2016Date of Patent: May 1, 2018Assignee: Kilopass Technology, Inc.Inventor: Chinh Vo
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Publication number: 20180095489Abstract: An output circuit at the output of an LDO regulator has two FETs (Field-Effect Transistors), a current source and a capacitor. The first FET is connected to the LDO output and a second voltage supply. The second FET is connected in series with the current source between the LDO output and the second voltage supply. The second FET is connected to the first FET in such a matter that a bias voltage is supplied to the first FET so that in static conditions the first FET draws predetermined amounts of current from the LDO output and to divert the predetermined amounts of current to the LDO output or to draw additional amounts of current from the LDO output to compensate for transient currents on the LDO output and to reduce variations in the output voltage of the LDO regulator.Type: ApplicationFiled: September 30, 2016Publication date: April 5, 2018Inventors: Wen Fang, Chinh Vo
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Publication number: 20180096730Abstract: A differential current sensing circuit architecture is used with an integrated circuit NVM memory block in which a selected memory cell and a related complementary memory cell are accessed at the same time for reading. The circuit architecture is used not only for normal operations for reading the logic states of a selected memory cell and its complementary memory cell after programming, but also for reading the logic states of a selected memory cell and its complementary memory cell before programming for the detecting of faults in memory cells.Type: ApplicationFiled: September 30, 2016Publication date: April 5, 2018Inventor: Chinh Vo
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Patent number: 8116145Abstract: A method and system for enabling auto shut-off of programming of a non-volatile memory cell is disclosed. The system includes a memory array having a plurality of memory cells, each cell storing one bit of data. During the programming process, programming signals are applied to the target memory cells. A predefined period of time after the programming signals are applied, the auto shut-off system begins sensing an output signal from the memory cell. After the system detects an output signal from the memory cell, the system waits for a second predefined period of time before turning off the programming voltages. The system may be configured to sense an output voltage from the memory cell. The system then compares the output voltage to a reference voltage in order to detect when the cell is programmed. Alternatively, the system may sense an output current from the memory cell. The system then compares the output current to a reference current to detect when the cell is programmed.Type: GrantFiled: August 29, 2008Date of Patent: February 14, 2012Assignee: Kilopass Technology, Inc.Inventors: Pearl P. Cheng, Harry S. Luan, Chinh Vo, Chih-Chieh (Steve) Wang
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Publication number: 20100054048Abstract: A method and system for enabling auto shut-off of programming of a non-volatile memory cell is disclosed. The system includes a memory array having a plurality of memory cells, each cell storing one bit of data. During the programming process, programming signals are applied to the target memory cells. A predefined period of time after the programming signals are applied, the auto shut-off system begins sensing an output signal from the memory cell. After the system detects an output signal from the memory cell, the system waits for a second predefined period of time before turning off the programming voltages. The system may be configured to sense an output voltage from the memory cell. The system then compares the output voltage to a reference voltage in order to detect when the cell is programmed. Alternatively, the system may sense an output current from the memory cell. The system then compares the output current to a reference current to detect when the cell is programmed.Type: ApplicationFiled: August 29, 2008Publication date: March 4, 2010Inventors: Pearl P. Cheng, Harry S. Luan, Chinh Vo, Chih-Chieh (Steve) Wang
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Patent number: 7586787Abstract: In example embodiments, methods are provided for reducing bit line leakage current. In an example embodiment, an unselected program word line is biased to a bias voltage. The unselected program word line is connected to a memory cell and the memory cell includes a plurality of transistors. In another example embodiment, an unselected memory cell is biased to a negative bias voltage during read operations.Type: GrantFiled: September 20, 2007Date of Patent: September 8, 2009Assignee: Kilopass Technology Inc.Inventors: Chinh Vo, Harry Shengwen Luan, Pearl Cheng
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Publication number: 20090080275Abstract: In example embodiments, methods are provided for reducing bit line leakage current. In an example embodiment, an unselected program word line is biased to a bias voltage. The unselected program word line is connected to a memory cell and the memory cell includes a plurality of transistors. In another example embodiment, an unselected memory cell is biased to a negative bias voltage during read operations.Type: ApplicationFiled: September 20, 2007Publication date: March 26, 2009Inventors: Chinh Vo, Harry Shengwen Luan, Pearl Cheng
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Publication number: 20060213595Abstract: The embodiment of this invention is a retractable spike pin snow tire. The retractable spike pin units are radially embedded in the road contact surface of specially designed vehicle tires. The retractable spike pin unit utilizes SMA (Shape Memory Alloy) actuators to provide mechanical forces for the spike pin. When activated electronically as needed by the driver, or by tire traction sensors, the plurality of spike pins will protrude out from the metal housings. These protruded pins will cling onto the ice covered or snow pressed road surface and provide needed extra grips for tires on slippery road conditions. When not in need the pins will be retracted back into their metal housing electronically by the driver's input, or by sensors.Type: ApplicationFiled: March 28, 2005Publication date: September 28, 2006Inventors: Kevin Volt, Sao Vo, Chinh Vo.lt