公开(公告)号：US20170077996A1

公开(公告)日：2017-03-16

申请号：US15205420

申请日：2016-07-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-Woo KIM ,  Byeong-Taek MOON ,  Jun-Ho KIM

IPC: H04B5/02 ,  H02J50/12 ,  H02J7/02 ,  H04B5/00 ,  H04W52/04

CPC classification number: H04B5/02 ,  H02J7/025 ,  H02J50/12 ,  H04B5/0031 ,  H04B5/0075 ,  H04W52/04 ,  H04W88/02

Abstract: A tag detector of a near field communication (NFC) device includes a current monitor configured to monitor a current flowing in a regulator in a preset phase and a detection phase to generate a first sensing current and a second sensing current, respectively, a current to voltage converter configured to convert the first sensing current and the second sensing current to a first sensing voltage and a second sensing voltage, respectively, an analog to digital converter configured to convert the first sensing voltage and the second sensing voltage to a first digital code and a second digital code, respectively, and a decision circuit configured to compare the first digital code and the second digital code, and output a detection signal indicating that another NFC device is within a communication range of the NFC device, based on the comparison.

Abstract translation: 近场通信（NFC）装置的标签检测器包括：电流监视器，被配置为监视在预设相位中流过调节器的电流和检测阶段，以分别产生第一感测电流和第二感测电流， 电压转换器，被配置为分别将第一感测电流和第二感测电流转换为第一感测电压和第二感测电压;模数转换器，被配置为将第一感测电压和第二感测电压转换为第一数字码， 第二数字码，以及判定电路，被配置为比较第一数字码和第二数字码，并且基于该比较，输出指示另一个NFC装置位于NFC装置的通信范围内的检测信号。

公开(公告)号：US20150094006A1

公开(公告)日：2015-04-02

申请号：US14450408

申请日：2014-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Hang-Seok CHOI ,  Il-Jong SONG ,  Jun-Ho KIM ,  Hyuk-Jun SUNG ,  Min-Woo LEE

IPC: H04B1/16 ,  H04B5/00

CPC classification number: H04B5/0056 ,  H03M1/1019 ,  H03M1/124 ,  H03M1/46 ,  H04B5/0025 ,  H04B17/21

Abstract: A receiver of a near field communication device includes a local oscillator, a first channel, and a second channel. The local oscillator may be configured to generate a first local oscillating signal. The first channel may be configured to process an input signal by mixing the input signal with the first local oscillating signal. The second channel may be configured to process the input signal by mixing the input signal with a second local oscillating signal that has a phase difference of 90 degrees with respect to the first local oscillating signal. Each of the first and second channels may include a comparator unit that includes a comparator configured to compare, in a comparator mode, an amplifier output signal with a reference voltage whose level increases in a step-wise manner and the comparator unit may be configured to set a level of the reference voltage to be used in a normal mode based on an output signal of the comparator.

Abstract translation: 近场通信设备的接收机包括本地振荡器，第一通道和第二通道。 本地振荡器可以被配置为产生第一本地振荡信号。 第一通道可以被配置为通过将输入信号与第一本地振荡信号混合来处理输入信号。 第二通道可以被配置为通过将输入信号与相对于第一本地振荡信号具有90度的相位差的第二本地振荡信号混合来处理输入信号。 第一和第二通道中的每一个可以包括比较器单元，其包括比较器，其被配置为在比较器模式下比较放大器输出信号与其电平以逐步方式增加的参考电压，并且比较器单元可以被配置为 基于比较器的输出信号设定要在正常模式下使用的参考电压的电平。

公开(公告)号：US20140266414A1

公开(公告)日：2014-09-18

申请号：US14198803

申请日：2014-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jun-Ho KIM ,  Il-Jong SONG ,  Jong-Pil CHO

IPC: G05F3/02

CPC classification number: G05F1/468 ,  G05F1/563 ,  G05F1/614

Abstract: A voltage generator of a contactless integrated circuit (IC) card includes a regulator configured to generate a first internal voltage based on an input voltage and a first reference voltage, the input voltage being received through an antenna of the contactless IC card. The voltage generator includes an internal voltage generator configured to generate a second internal voltage, the second internal voltage being used to operate an internal circuit of the contactless IC card. The voltage generator includes a reference voltage generator configured to generate a second reference voltage based on the first internal voltage, the second reference voltage being generated without regard to a fluctuation component of the first internal voltage. The voltage generator includes a switching unit configured to provide one of the first and second internal voltages as the first reference voltage in response to first and second switching control signals.

Abstract translation: 非接触集成电路（IC）卡的电压发生器包括：调节器，被配置为基于输入电压和第一参考电压产生第一内部电压，所述输入电压通过非接触式IC卡的天线接收。 电压发生器包括被配置为产生第二内部电压的内部电压发生器，第二内部电压用于操作非接触式IC卡的内部电路。 电压发生器包括参考电压发生器，其被配置为基于第一内部电压产生第二参考电压，第二参考电压被产生而不考虑第一内部电压的波动分量。 电压发生器包括：开关单元，被配置为响应于第一和第二开关控制信号，提供第一和第二内部电压中的一个作为第一参考电压。