Samsung Electronics Co., Ltd.

Young Min Jo

Tongsung Kim

Jung-June Park

Byung Hoon Jeong

Dae Hoon Na

Dong Ho Shin

Jung-june Park

Tong Sung Kim

A storage system includes a memory controller providing a clock signal; a buffer having a first duty cycle corrector to receive the clock signal and a chip selection signal from the memory controller, perform a first duty correction operation on the clock signal using a first data code and output a first corrected clock signal, a register to store the first data code regarding the chip selection signal, and a sampler to receive a data signal and a data strobe signal regarding the data signal and output a data stream; and a nonvolatile memory having a second duty cycle corrector to receive the first corrected clock signal from the buffer and perform a second duty correction operation on the first corrected clock signal using a second data code and out a second corrected clock signal, a second data code generation circuit to generate the second data code based on the second corrected clock signal, and a data strobe signal generator to generate the data strobe signal based on the second corrected clock signal and provide the data strobe signal to the buffer.

Storage system for enhancing data valid windows of signals

A storage system includes: a memory controller which provides a clock signal; a buffer which receives the clock signal and re-drives the clock signal, the buffer including a sampler which receives a data signal and a data strobe signal regarding the data signal, and which outputs a data stream; and a nonvolatile memory, including: a first duty cycle corrector, which receives the clock signal outputs a corrected clock signal by performing a first duty correction operation on the clock signal; and a data strobe signal generator, which generates the data strobe signal based on the corrected clock signal and provides the data strobe signal to the buffer. The buffer receives the data strobe signal output from the nonvolatile memory, senses a duty ratio of the data strobe signal input to the sampler, and performs a second duty correction operation on the duty ratio of the input data strobe signal.

Growing community of inventors

Hwaseong-si, South Korea

Young Min Jo