Patents by Inventor Yu-Chi Lai
Yu-Chi Lai 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: 10824347Abstract: A storage device and a data storing method thereof are provided. The storage device includes a data storage medium and the control unit. The data storage medium includes a data storage area with a plurality of first type of data blocks. When a data reading operation is executed on a current data block of the data storage medium, the control unit determines whether a read count of the current data block is greater than a first threshold, determines whether the current data block is one of the first type of data blocks and generate a determination result according to the result, the control unit selects a plurality of first type of data blocks and switches the selected data blocks to a fast mode. Finally, the control unit moves data stored in the current data block to the selected data blocks under fast mode.Type: GrantFiled: August 27, 2019Date of Patent: November 3, 2020Assignee: SILICON MOTION, INC.Inventors: Ching-Ke Chen, Yu-Chi Lai
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Publication number: 20190384510Abstract: A storage device and a data storing method thereof are provided. The storage device includes a data storage medium and the control unit. The data storage medium includes a data storage area with a plurality of first type of data blocks. When a data reading operation is executed on a current data block of the data storage medium, the control unit determines whether a read count of the current data block is greater than a first threshold, determines whether the current data block is one of the first type of data blocks and generate a determination result according to the result, the control unit selects a plurality of first type of data blocks and switches the selected data blocks to a fast mode. Finally, the control unit moves data stored in the current data block to the selected data blocks under fast mode.Type: ApplicationFiled: August 27, 2019Publication date: December 19, 2019Inventors: Ching-Ke Chen, Yu-Chi Lai
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Patent number: 10437493Abstract: A storage device and a data storing method thereof are provided. The storage device includes a data storage medium and the control unit. The data storage medium includes a data storage area with a plurality of first type of data blocks. When a data reading operation is executed on a current data block of the data storage medium, the control unit determines whether a read count of the current data block is greater than a first threshold, determines whether the current data block is one of the first type of data blocks and generate a determination result according to the result, the control unit selects a plurality of first type of data blocks and switches the selected data blocks to a fast mode. Finally, the control unit moves data stored in the current data block to the selected data blocks under fast mode.Type: GrantFiled: July 6, 2018Date of Patent: October 8, 2019Assignee: Silicon Motion, Inc.Inventors: Ching-Ke Chen, Yu-Chi Lai
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Publication number: 20180314446Abstract: A storage device and a data storing method thereof are provided. The storage device includes a data storage medium and the control unit. The data storage medium includes a data storage area with a plurality of first type of data blocks. When a data reading operation is executed on a current data block of the data storage medium, the control unit determines whether a read count of the current data block is greater than a first threshold, determines whether the current data block is one of the first type of data blocks and generate a determination result according to the result, the control unit selects a plurality of first type of data blocks and switches the selected data blocks to a fast mode. Finally, the control unit moves data stored in the current data block to the selected data blocks under fast mode.Type: ApplicationFiled: July 6, 2018Publication date: November 1, 2018Inventors: Ching-Ke Chen, Yu-Chi Lai
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Patent number: 10042567Abstract: A storage device and a data storing method thereof are provided. The storage device includes a data storage medium and the control unit. The data storage medium includes a data storage area with a plurality of first type of data blocks. When a data reading operation is executed on a current data block of the data storage medium, the control unit determines whether a read count of the current data block is greater than a first threshold, determines whether the current data block is one of the first type of data blocks and generate a determination result according to the result, the control unit selects a plurality of first type of data blocks and switches the selected data blocks to a fast mode. Finally, the control unit moves data stored in the current data block to the selected data blocks under fast mode.Type: GrantFiled: September 2, 2016Date of Patent: August 7, 2018Assignee: Silicon Motion, Inc.Inventors: Ching-Ke Chen, Yu-Chi Lai
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Publication number: 20170308311Abstract: A storage device and a data storing method thereof are provided. The storage device includes a data storage medium and the control unit. The data storage medium includes a data storage area with a plurality of first type of data blocks. When a data reading operation is executed on a current data block of the data storage medium, the control unit determines whether a read count of the current data block is greater than a first threshold, determines whether the current data block is one of the first type of data blocks and generate a determination result according to the result, the control unit selects a plurality of first type of data blocks and switches the selected data blocks to a fast mode. Finally, the control unit moves data stored in the current data block to the selected data blocks under fast mode.Type: ApplicationFiled: September 2, 2016Publication date: October 26, 2017Inventors: Ching-Ke Chen, Yu-Chi Lai
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Publication number: 20150188414Abstract: A single-phase power factor corrector with step-up and step-down functions provides a step-up circuit and a step-down circuit which are connected in parallel to each other and thereby stabilizes an output voltage of the power factor corrector.Type: ApplicationFiled: August 20, 2014Publication date: July 2, 2015Inventors: Yu-Chi LAI, Tsung-Liang HUNG
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Publication number: 20150160269Abstract: A circuit structure for measuring an input voltage includes an inductance element, an extra wire winding and a processing element. The extra wire winding additionally wraps around the inductance element. The processing element is coupled to the extra wire winding. The inductance element receives the input voltage and works. The extra wire winding induces the input voltage to obtain an induction signal. The extra wire winding sends the induction signal to the processing element. The processing element is configured to calculate a voltage value of the input voltage according to the induction signal.Type: ApplicationFiled: August 18, 2014Publication date: June 11, 2015Inventors: Yu-Chi LAI, Tsung-Liang HUNG, Ya-Lun OUYANG
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Patent number: 7675240Abstract: A light emitting diode (LED) circuit having even current has multiple LED strings, a current equalizing integrated circuit (IC) and a voltage compensation module. The LED strings are connected to an external power source, and each LED string has a power terminal and a driving terminal. The current equalizing IC has multiple driving pins connected respectively to the driving terminals of the LED strings. The voltage compensation module is connected between the LED strings and the external power source and has a threshold voltage value and multiple input terminals. The input terminals are connected respectively to the driving pins of the current equalizing IC to allow the voltage compensation module rise and send the voltage obtained from the external power source to the LED strings when the voltage compensation module determines any voltage on the driving pins of the current equalizing IC is lower than the threshold voltage value.Type: GrantFiled: December 12, 2007Date of Patent: March 9, 2010Assignee: Asian Power Devices Inc.Inventors: Cheng-Chang Yang, Guang-Ming Lei, Yu-Chi Lai
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Patent number: 7602151Abstract: A charger with output voltage compensation includes an AC/DC circuit, an output interface, a charge controller, and a compensator. The AC/DC circuit converts an AC source into a DC source. The voltage of the DC source is elevated by a transformer and used to charge a battery via the output interface. The charge controller can further increase the voltage of the output interface in order to accelerate battery charging. The compensator compensates the voltage wasted by the circuit. Therefore, the invention can overcome energy waste caused by the internal resistance in the circuit, achieving satisfactory charging effects.Type: GrantFiled: November 7, 2006Date of Patent: October 13, 2009Assignee: Asian Power Devices Inc.Inventors: Yu-Chi Lai, Sheng-Fa Chi
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Patent number: 7550951Abstract: A two-step charger includes an AC/DC power supply, a transformer, a compensator, a controller, a comparator and an isolating controller. The comparator detects whether a battery is connected to the transformer. If so, a command voltage of the charger is set at a high level. Since the battery voltage is lower than the command voltage, the controller orders the compensator to send out a compensating current. The current entering the primary side of the transformer is increased to promote the output current from the secondary side of the transformer. Once the comparator detects that the battery reaches as high as the charger, the command voltage is adjusted to a low level. The controller orders the compensator to stop outputting the compensating current. Therefore, a larger current can speed up battery charging. Once the battery is fully charged, the charging voltage is lowered to avoid high temperature.Type: GrantFiled: October 3, 2006Date of Patent: June 23, 2009Assignee: Asian Power Devices Inc.Inventors: Yu-Chi Lai, Ji-Shun Liao
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Publication number: 20090153066Abstract: A light emitting diode (LED) circuit having even current has multiple LED strings, a current equalizing integrated circuit (IC) and a voltage compensation module. The LED strings are connected to an external power source, and each LED string has a power terminal and a driving terminal. The current equalizing IC has multiple driving pins connected respectively to the driving terminals of the LED strings. The voltage compensation module is connected between the LED strings and the external power source and has a threshold voltage value and multiple input terminals. The input terminals are connected respectively to the driving pins of the current equalizing IC to allow the voltage compensation module rise and send the voltage obtained from the external power source to the LED strings when the voltage compensation module determines any voltage on the driving pins of the current equalizing IC is lower than the threshold voltage value.Type: ApplicationFiled: December 12, 2007Publication date: June 18, 2009Inventors: Cheng-Chang Yang, Guang-Ming Lei, Yu-Chi Lai
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Publication number: 20080136373Abstract: A two-step charger includes an AC/DC power supply, a transformer, a compensator, a controller, a comparator and an isolating controller. The comparator detects whether a battery is connected to the transformer. If so, a command voltage of the charger is set at a high level. Since the battery voltage is lower than the command voltage, the controller orders the compensator to send out a compensating current. The current entering the primary side of the transformer is increased to promote the output current from the secondary side of the transformer. Once the comparator detects that the battery reaches as high as the charger, the command voltage is adjusted to a low level. The controller orders the compensator to stop outputting the compensating current. Therefore, a larger current can speed up battery charging. Once the battery is fully charged, the charging voltage is lowered to avoid high temperature.Type: ApplicationFiled: October 3, 2006Publication date: June 12, 2008Inventors: Yu-Chi Lai, Ji-Shun Liao
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Publication number: 20080106233Abstract: A charger with output voltage compensation includes an AC/DC circuit, an output interface, a charge controller, and a compensator. The AC/DC circuit converts an AC source into a DC source. The voltage of the DC source is elevated by a transformer and used to charge a battery via the output interface. The charge controller can further increase the voltage of the output interface in order to accelerate battery charging. The compensator compensates the voltage wasted by the circuit. Therefore, the invention can overcome energy waste caused by the internal resistance in the circuit, achieving satisfactory charging effects.Type: ApplicationFiled: November 7, 2006Publication date: May 8, 2008Inventors: Yu-Chi Lai, Sheng-Fa Chi
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Patent number: 6312706Abstract: A novel polyurethane based prepolymer useful in biomedical devices which provides high oxygen permeability and superior physical properties.Type: GrantFiled: January 26, 2000Date of Patent: November 6, 2001Assignee: Bausch & Lomb IncorporatedInventors: Yu-Chi Lai, Louis J. Baccei