公开(公告)号：US20200019580A1

公开(公告)日：2020-01-16

申请号：US16510754

申请日：2019-07-12

申请人： Samsung Electronics Co., Ltd

发明人： Jinwoo KIM ,  Chaeman LIM ,  Hyejoong KANG ,  Bumsoo LEE

IPC分类号： G06F16/9537 ,  H04W4/029 ,  G06F16/29 ,  G06F16/23 ,  G06F16/951 ,  G06F16/2457

摘要： A server device, which includes a communication interface; a memory; and a processor operatively connected to the communication interface and the memory. The memory is configured to store a first database including identifiers of access points and location information. The processor is configured to: receive, from an external electronic device through the communication interface, an identifier of at least one access point including a first access point collected by the external device and an identifier of a base station, identify location information matching the identifier of the at least one access point and/or the identifier of the base station in the first database, and update location information matching an identifier of the first access point in the first database based on the identified location information.

公开(公告)号：US20240221807A1

公开(公告)日：2024-07-04

申请号：US18386463

申请日：2023-11-02

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Bumsoo LEE ,  Youngtaek CHO

IPC分类号： G11C7/22

CPC分类号： G11C7/22 ,  G11C2207/2254

摘要： Provided are a ZQ calibration circuit and a ZQ calibration method. The ZQ calibration circuit includes: a first calibration circuit; and a second calibration circuit sharing a first ZQ voltage with the first calibration circuit, wherein the first ZQ voltage is generated from a ZQ pad connected to an external resistor. The first calibration circuit includes: a first comparator; a second comparator; a first pull-up counter; a first pull-up driver; and a first switch electrically interconnecting the first pull-up counter. The second calibration circuit includes: a third comparator; a fourth comparator; a second pull-up counter; a second pull-up driver; and a second switch connected to the second pull-up counter and turned on based on a second logic level of the clock signal to electrically interconnect the second pull-up counter and the second pull-up driver.

公开(公告)号：US20230387900A1

公开(公告)日：2023-11-30

申请号：US18101653

申请日：2023-01-26

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Bumsoo LEE

IPC分类号： H03K5/13 ,  H03K3/03 ,  H03K19/08 ,  G11C11/4096

CPC分类号： H03K5/13 ,  H03K3/0315 ,  H03K19/08 ,  G11C11/4096 ,  H03K2005/00078

摘要： A delay control circuit includes: a delay cell including a plurality of bias inverters, first RC circuits, and second RC circuits, the delay cell activates a number of first RC circuits in response to a step code, delays a signal by a delay time based on the number of the activated first RC circuits, and outputs the delayed signal; a ZQ calibrator including pull-up and pull-down circuits, the ZQ calibrator adjusts a number of activated pull-up and pull-down circuits, and inputs a pull-up and pull-down voltage, based on a calibration code to the bias inverters; and a step adjuster including a first ring oscillator including test delay cells, the step adjuster determining characteristics of the first and second RC circuits and activates a number of second RC circuits based on the characteristics and an operating frequency of the delay control circuit.

公开(公告)号：US20200022103A1

公开(公告)日：2020-01-16

申请号：US16449727

申请日：2019-06-24

申请人： Samsung Electronics Co., Ltd.

发明人： Jinwoo KIM ,  Chaeman LIM ,  Hyejoong KANG ,  Bumsoo LEE

IPC分类号： H04W64/00

摘要： An electronic device is provided. The electronic device includes a first wireless communication circuit supporting near-field communication with APs, a second wireless communication circuit supporting cellular communication with base stations, a processor, and a memory. The processor receives a first identifier of a first AP by using the first wireless communication circuit, generates a first determination by confirming whether or not the list includes the first identifier and location information associated with the first identifier, transmits the first identifier to an external server by using the first wireless communication circuit or the second wireless communication circuit at least partially on the basis of the first determination, receives first information regarding a location associated with the first identifier from the external server through the first wireless communication circuit or the second wireless communication circuit, and determines the location of the electronic device at least on the basis of the first information.