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Kyong Ha Lee

Kyong Ha Lee, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100157717SEMICONDUCTOR INTEGRATED CIRCUIT CAPABLE OF CONTROLLING READ COMMAND - The semiconductor integrated circuit includes a command decoder, a shift register unit and a command address latch unit. The command decoder is responsive to an external command defining write and read modes and configured to provide a write command or a read command according to the external command using a rising or falling clock. The shift register unit is configured to shift an external address and the write command by a write latency in response to the write command. The column address latch unit is configured to latch and provide the external address as a column address in the read mode, and to latch a write address, which is provided from the shift register unit, and provide the write address as the column address in the write mode.06-24-2010
20110075502BANK ACTIVE SIGNAL GENERATION CIRCUIT - The bank active signal generation circuit comprises a decoded signal generator and an active signal generator. The decoded signal generator generates decoded signals from a first bank access signal, a second bank access signal and a row address signal in response to when a prefetch signal at a first mode. The decoded signal generator also generates decoded signals from the first bank access signal, the second bank access signal, and a third bank access signal in response when the prefetch signal at a second mode. The active signal generator generates bank active signals in response to receiving the decoded signals, an active pulse and a precharge pulse.03-31-2011
20110110176ADDRESS CONTROL CIRCUIT AND SEMICONDUCTOR MEMORY DEVICE - An address control circuit is presented for use in reducing a skew in a write operation mode. The address control circuit includes a read column address control circuit and a write column address control circuit. The read column address control circuit is configured to generate a read column address from an address during a first burst period for a read operation mode. The write column address control circuit is configured to generate a write column address from the address during a second burst period for a write operation mode.05-12-2011
20110128811INTERNAL COMMAND GENERATION CIRCUIT - The internal command generation circuit includes a burst pulse generation unit and a pulse shifting unit. The burst pulse generation unit is configured to receive a command for a read or write operation, and generate a first burst pulse. The pulse shifting unit is configured to shift the first burst pulse and generate an internal command.06-02-2011

Patent applications by Kyong Ha Lee, Gyeonggi-Do KR

Kyong Ha Lee, Yongin-Si KR

Patent application numberDescriptionPublished
20090003106Precharge control circuit - A precharge control circuit includes a precharge control unit and a precharge unit. The precharge control unit controls and outputs a precharge signal in response to a read command signal, a write command signal, and a first signal. The precharge unit precharges local input/output lines in response to a signal output from the precharge control unit.01-01-2009
20090168564Strobe signal controlling circuit - A strobe signal controlling circuit is provided which includes an initial write controller configured to outputs a write pulse signal, which is activated in a write command, in synchronization with a clock signal, a DQS signal outputting unit configured to outputs a write DQS signal by synchronizing an output signal of the initial write controller to the clock signal, a control signal generator configured to generates a control signal in response to the output signal of the initial write controller, and a reset signal generator configured to responds to a reset signal and a DQS enable signal to output a reset signal to the DQS signal outputting module in synchronization with the control signal.07-02-2009
20100177590Burst mode control circuit - A burst mode control unit includes a burst period signal generation unit for generating a burst period signal which is enabled during a burst mode operation period, a burst pulse generation unit for generating a burst pulse, which is generated at every predetermined number of cycles during the enabled period of the burst period signal, in response to a read command and a write command, and a column access signal generation unit for receiving the burst signal and a clock signal and generating a column access signal which controls input and output of data during the burst mode operation period.07-15-2010
20100202225Data input circuit technical field - A data input circuit comprises a sensing control unit which delays an internal write command by a predetermined period and generates a sense amplifier enable signal in response to a first clock signal, and a data sensing unit which senses align data and transfers the sensed data to a global line in response to the sense amplifier enable signal, wherein the sense amplifier enable signal is enabled at a time point when the align data is inputted in the data sensing unit.08-12-2010
20100246310Address converting circuit and semiconductor memory device using the same - A semiconductor memory includes an address converting circuit which latches an address and a bank signal and generates a latch address for activating a data access path of a second bank group, and converts the latch address according to a level of the bank signal and generates a variable address for activating a data access path of a first bank group, a first column decoder which decodes the variable address and generates a first output enable signal for activating the data access path of the first bank group, and a second column decoder which decodes the latch address and generates a second output enable signal for activating the data access path of the second bank group.09-30-2010

Kyong Ha Lee, Ichon KR

Patent application numberDescriptionPublished
20090231947SEMICONDUCTOR INTEGRATED CIRCUIT HAVING ADDRESS CONTROL CIRCUIT - A semiconductor IC in which a least significant bit of an external address signal is fixed to a signal level, the semiconductor integrated circuit includes an address control circuit configured to produce a carry signal, when a test mode signal is activated, in response to a column command signal and output an address signal, which is sequentially increased from an initial internal address signal, by latching the external address signal as the initial internal address signal and combining the latched initial internal address signal and the carry signal.09-17-2009

Kyong Ha Lee, Suwon-Si KR

Patent application numberDescriptionPublished
20090180344Self-refresh period measurement circuit of semiconductor device - A self-refresh period measurement circuit of a semiconductor device is disclosed, herein which includes a delay means for delaying the received oscillation signal by a unit self-refresh period to output a first delayed oscillation signal, and delaying the received oscillation signal to output a third delayed oscillation signal, a first period measurement start signal generator for generating a first period measurement start signal for setting a time that the oscillation signal is enabled for the first time as a start time for measurement of a self-refresh period, and a first refresh period output unit for generating a first refresh period output signal that is enabled for a period from a time that the first period measurement start signal is enabled to a time that the first delayed oscillation signal is enabled for the first time.07-16-2009