Patents by Inventor Chang-ho Shin

Chang-ho Shin 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).

  • Publication number: 20060023535
    Abstract: Provided are a bitline driving circuit of an integrated circuit memory that enhances a precharge scheme and a sense amplification scheme and a bitline driving method. In the bitline driving circuit, a new scheme of precharging the bitlines to voltages greater than or smaller than a voltage VCCA/2 using an auxiliary circuit is used to increase a gate-source voltage of transistors included in each sense amplification circuit. Also, when cell data is 1 and 0, a dummy cell can maintain a voltage difference between the bitlines BL and BLB generated after charge sharing. Furthermore, a sense amplification circuit, which is controlled by an offset control circuit, can remove a threshold voltage offset between the transistors included in each sense amplification circuit. At this time, an auxiliary circuit is used to stabilize the voltage difference.
    Type: Application
    Filed: July 13, 2005
    Publication date: February 2, 2006
    Inventors: Ki-chul Chun, Chang-ho Shin
  • Publication number: 20050280450
    Abstract: A power-up reset circuit with reduced power consumption. The resistance of the power-up reset circuit may be adjusted during a power-up operation. The standby current may thereby be reduced, which may reduce the power consumption in the power-up reset circuit.
    Type: Application
    Filed: April 29, 2005
    Publication date: December 22, 2005
    Inventors: Chang-Ho Shin, Nam-Jong Kim