公开(公告)号：US07019555B2

公开(公告)日：2006-03-28

申请号：US10879682

申请日：2004-06-28

Applicant: Sang-Hee Lee

Inventor： Sang-Hee Lee

IPC: A03K19/003

CPC classification number: G11C7/1057 ,  G11C7/1051 ,  G11C7/222 ,  H04L25/0278

Abstract: A circuit for performing an on-die termination operation includes a clock buffer for outputting first and second buffered clocks using an external clock and an external inverting clock applied thereto externally; an on-die termination buffer for comparing each other an ODT signal and a reference voltage, which are applied thereto from an external chip set, to generate an on-die termination comparison signal; a first flip-flop member for transferring the on-die termination comparison signal as a plurality of parallel output signals based on the first and second buffered clocks outputted from the clock buffer; and a plurality of second flip-flop members, which corresponds to each of the parallel output signals outputted from the first flip-flop member, for transferring the parallel output signals outputted from the first flip-flop member based on delayed lock loop clocks outputted from a delayed lock loop.

Abstract translation: 用于执行片上终止操作的电路包括时钟缓冲器，用于使用外部时钟和外部施加的外部反相时钟来输出第一和第二缓冲时钟; 用于将外部芯片组施加的ODT信号和参考电压彼此进行比较的片上终止缓冲器，以产生片上终止比较信号; 第一触发器构件，用于基于从时钟缓冲器输出的第一和第二缓冲时钟，将片上终端比较信号作为多个并行输出信号传送; 以及多个第二触发器构件，其对应于从第一触发器构件输出的每个并行输出信号，用于基于从第一触发器构件输出的延迟的锁定环时钟传送从第一触发器构件输出的并行输出信号 延迟锁定循环。

公开(公告)号：US06215905B1

公开(公告)日：2001-04-10

申请号：US08940937

申请日：1997-09-30

Applicant: Sang-Hee Lee ,  Jae-Kyoon Kim ,  Chel-Soo Park ,  Joo-Hee Moon

Inventor： Sang-Hee Lee ,  Jae-Kyoon Kim ,  Chel-Soo Park ,  Joo-Hee Moon

IPC: G06K936

CPC classification number: H04N19/593 ,  H04N19/60

Abstract: A predictive coding in a video coding system, which can enhance the coding efficiency by predictively coding DC coefficients of a block to be coded using DC gradients of a plurality of previously coded neighboring blocks. The predictive coefficient is selected according to the difference between the quantized DC gradients (coefficients) of a plurality of neighboring blocks of the block to be coded, and the DC coefficient of the block to be coded is predictively coded by the selected predictive coefficient, thereby enhancing the coding efficiency.

Abstract translation: 视频编码系统中的预测编码，其可以通过使用多个先前编码的相邻块的DC梯度预测性地编码要编码的块的DC系数来增强编码效率。 根据要编码的块的多个相邻块的量化DC梯度（系数）之间的差选择预测系数，并且通过所选择的预测系数预测编码的块的DC系数，从而 提高编码效率。