公开(公告)号：US20250071009A1

公开(公告)日：2025-02-27

申请号：US18945640

申请日：2024-11-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seongyeal Yang ,  Moonchul Choi ,  Sungyong Cho ,  Jaehyeok Baek

IPC: H04L27/36

Abstract: Provided is a transmitting device for enlarging the size of a data eye of a transmission signal. The transmitting device includes an output driver including a plurality of driver circuits that drive a plurality of multi-level signals onto an output node, and a logic circuit configured to detect a direction of a pull-up or pull-down operation of each of the plurality of driver circuits by transitions of the plurality of driver control signals and generate pulse signals. The plurality of multi-level signals are driven based on a plurality of driver control signals and pulse signals, respectively, and the logic circuit provides a pulse signal to at least one static driver circuit connected to a driver control signal that does not transition, from among the plurality of driver circuits.

公开(公告)号：US20240127871A1

公开(公告)日：2024-04-18

申请号：US18235848

申请日：2023-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Donggun An ,  Jaehyeok Baek ,  Sungyong Cho ,  Moonchul Choi

IPC: G11C7/10

CPC classification number: G11C7/1048 ,  G11C2207/2254

Abstract: A ZQ calibration circuit included in a semiconductor memory device includes a reference voltage selector configured to output a reference voltage selected from among a first reference voltage and a second reference voltage generated based on a first supply voltage and a second supply voltage, in response to a selection signal, a ZQ engine configured to generate a pull-up code and a pull-down code based on the selected reference voltage, and a loop selector configured to output the selection signal according to whether each of the pull-up code and the pull-down code is toggled. Levels of the first and second reference voltages are different from each other, smaller than a level of the first supply voltage, and greater than a level of the second supply voltage.

公开(公告)号：US20250014632A1

公开(公告)日：2025-01-09

申请号：US18600736

申请日：2024-03-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaehyeok Baek ,  Sungyong Cho ,  Hyeran Kim

IPC: G11C11/4076 ,  G11C11/4093 ,  G11C11/4099

Abstract: A memory device includes a data input/output (I/O) pin, an output driver, a multi-level receiver and a calibrator. The output driver is connected to the data I/O pin, and generates an internal input signal based on a first clock signal. The multi-level receiver is connected to the data I/O pin, and includes a plurality of samplers. The plurality of samplers generate a plurality of decision signals by sampling the internal input signal based on a reference voltage and a second clock signal. The calibrator detects and compensates at least one of timing skew and offset associated with the plurality of samplers based on the plurality of decision signals. The internal input signal is a multi-level signal having three or more voltage levels that are different from each other.

公开(公告)号：US12033717B2

公开(公告)日：2024-07-09

申请号：US17903578

申请日：2022-09-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaehyeok Baek ,  Daehyun Kwon ,  Hyejung Kwon ,  Donggun An ,  Daewoong Lee

IPC: G11C7/10

CPC classification number: G11C7/1048 ,  G11C2207/2254

Abstract: A calibration circuit includes a first, second and third pull-up units each connected to a first power supply node, and first and second pull-down units each connected to a second power supply node. A first code generator is configured to generate a first code by comparing a voltage of a pad at which the first pull-up unit is connected to an external resistor with a reference voltage, and a second code generator is configured to generate a second code by comparing a voltage of a first intermediate node with the reference voltage and output the second code to the first and second pull-down units. A third code generator is configured to generate a third code by comparing a voltage of a second intermediate node between the second pull-down unit and the third pull-up unit with the reference voltage.

公开(公告)号：US12170589B2

公开(公告)日：2024-12-17

申请号：US18327306

申请日：2023-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seongyeal Yang ,  Moonchul Choi ,  Sungyong Cho ,  Jaehyeok Baek

IPC: H04L27/36

Abstract: Provided is a transmitting device for enlarging the size of a data eye of a transmission signal. The transmitting device includes an output driver including a plurality of driver circuits that drive a plurality of multi-level signals onto an output node, and a logic circuit configured to detect a direction of a pull-up or pull-down operation of each of the plurality of driver circuits by transitions of the plurality of driver control signals and generate pulse signals. The plurality of multi-level signals are driven based on a plurality of driver control signals and pulse signals, respectively, and the logic circuit provides a pulse signal to at least one static driver circuit connected to a driver control signal that does not transition, from among the plurality of driver circuits.

公开(公告)号：US20230403040A1

公开(公告)日：2023-12-14

申请号：US18189521

申请日：2023-03-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Moon-Chul Choi ,  Sung-Yong Cho ,  Jaehyeok Baek ,  Donggun An

IPC: H04B1/04 ,  H04B7/005

CPC classification number: H04B1/0458 ,  H04B7/005 ,  H04B1/0475

Abstract: In a transmitter circuit, an impedance calibration circuit is configured to generate an impedance code for impedance matching, an encoder is configured to receive the impedance code and to generate a delay compensation signal based on the impedance code. A delay circuit is configured to output delay data that are delayed from input data by a delay value determined based on the delay compensation signal. A feed-forward equalizer is configured to receive the input data and the delay data, and to equalize the input data based on a main coefficient used for the input data and an equalization coefficient used for the delay data to generate transmission data.

公开(公告)号：US12149269B2

公开(公告)日：2024-11-19

申请号：US18189521

申请日：2023-03-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Moon-Chul Choi ,  Sung-Yong Cho ,  Jaehyeok Baek ,  Donggun An

IPC: H04B1/3827 ,  H04B1/04 ,  H04B7/005

Abstract: In a transmitter circuit, an impedance calibration circuit is configured to generate an impedance code for impedance matching, an encoder is configured to receive the impedance code and to generate a delay compensation signal based on the impedance code. A delay circuit is configured to output delay data that are delayed from input data by a delay value determined based on the delay compensation signal. A feed-forward equalizer is configured to receive the input data and the delay data, and to equalize the input data based on a main coefficient used for the input data and an equalization coefficient used for the delay data to generate transmission data.

公开(公告)号：US20240073081A1

公开(公告)日：2024-02-29

申请号：US18327306

申请日：2023-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seongyeal Yang ,  Moonchul Choi ,  Sungyong Cho ,  Jaehyeok Baek

IPC: H04L27/36

CPC classification number: H04L27/36

Abstract: Provided is a transmitting device for enlarging the size of a data eye of a transmission signal. The transmitting device includes an output driver including a plurality of driver circuits that drive a plurality of multi-level signals onto an output node, and a logic circuit configured to detect a direction of a pull-up or pull-down operation of each of the plurality of driver circuits by transitions of the plurality of driver control signals and generate pulse signals. The plurality of multi-level signals are driven based on a plurality of driver control signals and pulse signals, respectively, and the logic circuit provides a pulse signal to at least one static driver circuit connected to a driver control signal that does not transition, from among the plurality of driver circuits.