Patents by Inventor Cheol-ha Lee
Cheol-ha Lee 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: 9805818Abstract: A fuse memory comprising a discharge circuit is provided. The fuse memory includes a fuse cell array comprising fuse cells connected to read word lines, programs word lines, and bit lines arranged in rows and columns; and at least one discharge circuit arranged in each of the rows. The discharge circuit discharges a voltage level of a program word line of the fuse cells selected in a read mode to a ground voltage.Type: GrantFiled: November 17, 2016Date of Patent: October 31, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-seong Kim, Cheol-ha Lee
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Publication number: 20170221574Abstract: A fuse memory comprising a discharge circuit is provided. The fuse memory includes a fuse cell array comprising fuse cells connected to read word lines, programs word lines, and bit lines arranged in rows and columns; and at least one discharge circuit arranged in each of the rows. The discharge circuit discharges a voltage level of a program word line of the fuse cells selected in a read mode to a ground voltage.Type: ApplicationFiled: November 17, 2016Publication date: August 3, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Tae-seong KIM, Cheol-ha Lee
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Patent number: 9415778Abstract: An apparatus and a method for determining careless driving are provided and determine more reliable careless driving by generating normal driving patterns using driving performance data for a reference time at the beginning of driving. In addition, careless driving patterns greater than a predetermined number are detected using the normal driving pattern and a boundary between the normal driving and the careless driving is determined using a supervised learning method. The careless driving of the driver is then determined based on the determined boundary.Type: GrantFiled: December 6, 2013Date of Patent: August 16, 2016Assignee: Hyundai Motor CompanyInventors: Seong Su Im, Jin Hak Kim, Byung Yong You, Seok Youl Yang, Cheol Ha Lee
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Patent number: 9168926Abstract: A driving concentration level calculating apparatus is provided and includes a controller configured to acquire an acceleration of a traveling vehicle and measure a relative velocity to a preceding vehicle. In addition, noise is removed from the acquired acceleration of the traveling vehicle and from the measured relative velocity to the preceding vehicle. A plurality of correlation values are calculated based on the acceleration of the traveling vehicle and the relative velocity to the preceding vehicle from which noise has been removed. In addition, the controller is configured to detect a time at which a maximum correlation value is calculated as a driving concentration level from among the calculated correlation values.Type: GrantFiled: December 11, 2013Date of Patent: October 27, 2015Assignee: Hyundai Motor CompanyInventors: Cheol Ha Lee, Seong Su Im, Byung Yong You, Seok Youl Yang
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Publication number: 20150081605Abstract: An apparatus and a method for determining careless driving are provided and determine more reliable careless driving by generating normal driving patterns using driving performance data for a reference time at the beginning of driving. In addition, careless driving patterns greater than a predetermined number are detected using the normal driving pattern and a boundary between the normal driving and the careless driving is determined using a supervised learning method. The careless driving of the driver is then determined based on the determined boundary.Type: ApplicationFiled: December 6, 2013Publication date: March 19, 2015Applicant: HYUNDAI MOTOR COMPANYInventors: Seong Su Im, Jin Hak Kim, Byung Yong You, Seok Youl Yang, Cheol Ha Lee
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Publication number: 20150066347Abstract: A driving concentration level calculating apparatus is provided and includes a controller configured to acquire an acceleration of a traveling vehicle and measure a relative velocity to a preceding vehicle. In addition, noise is removed from the acquired acceleration of the traveling vehicle and from the measured relative velocity to the preceding vehicle. A plurality of correlation values are calculated based on the acceleration of the traveling vehicle and the relative velocity to the preceding vehicle from which noise has been removed. In addition, the controller is configured to detect a time at which a maximum correlation value is calculated as a driving concentration level from among the calculated correlation values.Type: ApplicationFiled: December 11, 2013Publication date: March 5, 2015Applicant: HYUNDAI MOTOR COMPANYInventors: Cheol Ha Lee, Seong Su Im, Byung Yong You, Seok Youl Yang
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Patent number: 8797817Abstract: At least one example embodiment discloses a semiconductor device. The semiconductor device includes a first sense amplifier selectively connected between a first bit line and a second bit line, a second sense amplifier selectively connected between the first bit line and the second bit line, a first power supply circuit configured to provide a power supply voltage to the first sense amplifier in response to a first control signal, a second power supply circuit configured to provide a ground voltage to the second sense amplifier in response to a second control signal, and a switching circuit configured to selectively connect the first power supply circuit with the second power supply circuit in response to a third control signal.Type: GrantFiled: September 21, 2011Date of Patent: August 5, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Doo Joo, Cheol Ha Lee, Jung-Han Kim
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Patent number: 8368631Abstract: A driving integrated circuit and methods thereof are provided. The driving IC includes a memory for driving a display panel and having a memory structure including at least one cell block, a scan register receiving data read from the memory, a source driver receiving data output from the scan register and outputting the received latched data to the panel and a switching unit establishing a connection between an activated cell block and the scan register in response to an activation of the activated cell block. One method includes performing a read operation to read data from a memory, the read operation including sensing and amplifying data stored within a memory cell, turning on a switch to increase a bit line voltage above a voltage threshold and latching the amplified data received through a line connected to the switch and transmitting the read data to the panel of the display device.Type: GrantFiled: February 23, 2007Date of Patent: February 5, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Cheol-Ha Lee, Young-Ju Choi
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Patent number: 8315120Abstract: A semiconductor memory device can include a first driver configured to generate a pair of first sense amplifier driving signals having an activation period at a predetermined level during command execution; and a second driver that can be configured to generate a pair of second sense amplifier driving signals for increasing a driving strength of a pair of sense amplifiers when logic values of a pair of bit lines are constant during the command execution and decreasing the driving strength of the pair of sense amplifiers when the logic values of the pair of bit lines change.Type: GrantFiled: December 22, 2010Date of Patent: November 20, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Cheol Ha Lee, Jong Doo Joo, Jung-Han Kim
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Patent number: 8218375Abstract: An oscillation circuit includes an internal voltage generator and an oscillator. The internal voltage generator receives an external voltage and generates an internal voltage based on the external voltage. The internal voltage varies in linearly with an operational temperature. The oscillator generates a variable oscillation signal based on the internal voltage. A period of the variable oscillation signal varies in linearly with the operational temperature.Type: GrantFiled: January 19, 2010Date of Patent: July 10, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Doo Joo, Cheol-Ha Lee, Sang-Seok Lee
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Publication number: 20120081986Abstract: At least one example embodiment discloses a semiconductor device. The semiconductor device includes a first sense amplifier selectively connected between a first bit line and a second bit line, a second sense amplifier selectively connected between the first bit line and the second bit line, a first power supply circuit configured to provide a power supply voltage to the first sense amplifier in response to a first control signal, a second power supply circuit configured to provide a ground voltage to the second sense amplifier in response to a second control signal, and a switching circuit configured to selectively connect the first power supply circuit with the second power supply circuit in response to a third control signal.Type: ApplicationFiled: September 21, 2011Publication date: April 5, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Doo Joo, Cheol Ha Lee, Jung-Han Kim
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Publication number: 20110188333Abstract: A semiconductor memory device can include a first driver configured to generate a pair of first sense amplifier driving signals having an activation period at a predetermined level during command execution; and a second driver that can be configured to generate a pair of second sense amplifier driving signals for increasing a driving strength of a pair of sense amplifiers when logic values of a pair of bit lines are constant during the command execution and decreasing the driving strength of the pair of sense amplifiers when the logic values of the pair of bit lines change.Type: ApplicationFiled: December 22, 2010Publication date: August 4, 2011Inventors: Cheol Ha Lee, Jong Doo Joo, Jung-Han Kim
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Patent number: 7839698Abstract: A semiconductor memory device includes a memory core and an input/output circuit. The memory core amplifies a signal of a memory cell to output the amplified signal through an input/output line pair in a read mode, receives a signal of the input/output line pair to store in the memory cell in a write mode, and electrically separates a bit line pair from the input/output line pair in response to a read column selection signal, a write column selection signal and a first data masking signal. The input/output circuit buffers and provided a signal of the input/output line pair to input/output pins, receives input data from the input/output pins, and buffers the received input data to provide the buffered input data to the input/output line pair. Thus, the semiconductor device can perform a fast data writing operation.Type: GrantFiled: February 20, 2008Date of Patent: November 23, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Doo Joo, Cheol-Ha Lee, Jung-Han Kim
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Publication number: 20100182852Abstract: An oscillation circuit includes an internal voltage generator and an oscillator. The internal voltage generator receives an external voltage and generates an internal voltage based on the external voltage. The internal voltage varies in linearly with an operational temperature. The oscillator generates a variable oscillation signal based on the internal voltage. A period of the variable oscillation signal varies in linearly with the operational temperature.Type: ApplicationFiled: January 19, 2010Publication date: July 22, 2010Inventors: Jong-Doo Joo, Cheol-Ha Lee, Sang-Seok Lee
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Patent number: 7518943Abstract: An embedded memory and methods thereof are provided. The example embedded memory may include a first memory block configured to output data, selected by a first column select signal, on a first scan output line if the first memory block is determined to be non-defective and a second memory block configured to output data, selected by a second column select signal on a second scan output line if the first memory block is determined to be non-defective, the second memory block further configured to output data, selected by the first column select signal, on the first scan output line if the first memory block is determined to be defective.Type: GrantFiled: December 26, 2006Date of Patent: April 14, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Doo Joo, Cheol-Ha Lee
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Publication number: 20080291756Abstract: A semiconductor memory device includes a memory core and an input/output circuit. The memory core amplifies a signal of a memory cell to output the amplified signal through an input/output line pair in a read mode, receives a signal of the input/output line pair to store in the memory cell in a write mode, and electrically separates a bit line pair from the input/output line pair in response to a read column selection signal, a write column selection signal and a first data masking signal. The input/output circuit buffers and provided a signal of the input/output line pair to input/output pins, receives input data from the input/output pins, and buffers the received input data to provide the buffered input data to the input/output line pair. Thus, the semiconductor device can perform a fast data writing operation.Type: ApplicationFiled: February 20, 2008Publication date: November 27, 2008Applicant: Samsung Electronics Co. Ltd.Inventors: Jong-Doo Joo, Cheol-Ha Lee, Jung-Han Kim
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Publication number: 20070257898Abstract: A driving integrated circuit (IC) and methods thereof are provided. The example driving IC may include a memory storing data for driving a panel of a display device and having a memory structure including at least one cell block, a scan register receiving data read from the memory and latching the received read data, a source driver receiving data output from the scan register and outputting the received latched data to the panel and a switching unit selectively establishing a connection between an activated cell block and the scan register in response to an activation of the activated cell block, the activated cell block included among the at least one cell block of the memory.Type: ApplicationFiled: February 23, 2007Publication date: November 8, 2007Inventors: Cheol-Ha Lee, Young-Ju Choi
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Publication number: 20070201289Abstract: An embedded memory and methods thereof are provided. The example embedded memory may include a first memory block configured to output data, selected by a first column select signal, on a first scan output line if the first memory block is determined to be non-defective and a second memory block configured to output data, selected by a second column select signal on a second scan output line if the first memory block is determined to be non-defective, the second memory block further configured to output data, selected by the first column select signal, on the first scan output line if the first memory block is determined to be defective.Type: ApplicationFiled: December 26, 2006Publication date: August 30, 2007Inventors: Jong-Doo Joo, Cheol-Ha Lee
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Patent number: 6226764Abstract: Integrated circuit memory devices include a stress voltage generator that generates a stress voltage that is higher than the internal supply voltage of the integrated circuit memory device and that applies the stress voltage to the memory cell array during the stress BIST of the memory cell array. The stress voltage generator is preferably responsive to a BIST request signal and to a stress test signal that are applied from external of the integrated circuit memory device, to apply the stress voltage to the memory cell array and to perform a BIST of the memory cell array. The stress voltage generator is responsive to the BIST request signal and absence of the stress test signal, to apply the internal supply voltage to the memory cell array and to perform a BIST of the memory cell array. Accordingly, circuits within the integrated circuit memory device can be responsive to external test signals to generate stress voltages during BIST.Type: GrantFiled: September 16, 1998Date of Patent: May 1, 2001Assignee: Samsung Electronics Co., Ltd.Inventor: Cheol-ha Lee
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Merged memory logic integrated circuits including buffers driven by adjustably delayed clock signals
Patent number: 5969999Abstract: A merged memory logic (MML) integrated circuit includes an adjustable clock generator configured to receive a input clock signal and produce an adjustably delayed clock signal therefrom responsively to a control signal generated by a programmable logic circuit. A buffer has a clock input for receiving the adjustably delayed clock signal and is configured to receive an input data signal and produce a corresponding output data signal therefrom responsive to the adjustably delayed clock signal. The adjustable clock generator preferably includes a clock generator configured to receive the input clock signal and produce a output clock signal therefrom, and an adjustable delay circuit which receives the output clock signal and generates the adjustably delayed clock signal therefrom, the adjustably delayed clock signal being delayed by a selected one of a plurality of selectable delay intervals with respect to the output clock signal.Type: GrantFiled: December 19, 1997Date of Patent: October 19, 1999Assignee: Samsung Electronics Co., Ltd.Inventor: Cheol-Ha Lee