-
公开(公告)号：KR1020140088747A
公开(公告)日：2014-07-11
申请号：KR1020130000653
申请日：2013-01-03
Applicant: 삼성전기주식회사
Inventor： 민상현
IPC: H04L1/16
CPC classification number: H04L1/1607 , H04L1/0045
Abstract: Disclosed are an ACK-based communication method in an electronic shelf label system and a recording medium storing a program for executing the same. In step (a), when a receiver normally receives a data frame from a transmitter, the receiver transmits an ACK signal to the transmitter. In step (b), the receiver operates in a reception waiting state during the threshold time. In step (c), the receiver determines whether there is a data frame retransmitted from the transmitter during the threshold time. In step (d), when there is a retransmitted data frame, the receiver retransmits the ACK signal to the transmitter and performs a predetermined subsequent operation. When there is no retransmitted data frame, the receiver performs the predetermined next operation after the threshold time period has elapsed. According to the ACK-based communication method, in the ACK-based communication scheme used in the electronic shelf label system, the receiver operates in a reception mode for the predetermined time after transmission of the ACK in order to prepare loss of an ACK packet between a gateway and a tag to improve the reception rate of the ACK, thereby correcting communication errors and improving communication reliability.
Abstract translation: 公开了电子货架标签系统中的基于ACK的通信方法和存储用于执行该程序的记录介质。 在步骤（a）中，当接收机通常从发射机接收数据帧时，接收机向发射机发送ACK信号。 在步骤（b）中，接收机在阈值时间内处于接收等待状态。 在步骤（c）中，接收机在阈值时间内确定是否存在从发射机重传的数据帧。 在步骤（d）中，当存在重传的数据帧时，接收机将ACK信号重发到发射机并执行预定的后续操作。 当没有重传的数据帧时，接收机在阈值时间段过去之后执行预定的下一个操作。 根据基于ACK的通信方法，在电子货架标签系统中使用的基于ACK的通信方案中，接收机在发送ACK之后的预定时间内以接收模式操作，以便准备ACK包之间的丢失 网关和标签，以提高ACK的接收速率，从而校正通信错误并提高通信可靠性。
-
公开(公告)号：KR101251846B1
公开(公告)日：2013-04-09
申请号：KR1020110135596
申请日：2011-12-15
Applicant: 삼성전기주식회사
Abstract: PURPOSE: A power factor compensation control device is provided to reduce a manufacturing cost and to reduce the whole area by sharing an external comparator for a function signal with a comparator in an ADC(Analog-Digital Convertor). CONSTITUTION: A power factor compensation control unit(140) includes an inner voltage generating unit(141), a mux unit(142), an ADC(144), a digital operating unit(146), and an output unit(148). The inner voltage generating unit generates an external supply voltage(VDD) as an inner voltage(Vin) to provide the voltage to the digital operating unit. The mux unit muxes an input voltage(IAC) and an output voltage(IFB) to generate an ADC input signal(ADC_in). The ADC receives a function signal(Func_in) and the ADC input signal at the same time. The ADC selectively outputs one of the ADC input signal and the function signal based on a switch enable signal. The output unit generates a signal outputted from the digital operating unit as a control signal(GD) to provide the signal to the power factor compensation control unit. [Reference numerals] (141) Inner voltage generating unit; (142) Mux unit; (146) Digital operating unit; (148) Output unit;
Abstract translation: 目的：提供功率因数补偿控制装置，通过与ADC（模拟数字转换器）中的比较器共享功能信号的外部比较器来降低制造成本并减少整个面积。 构成：功率因数补偿控制单元（140）包括内部电压产生单元（141），多路复用单元（142），ADC（144），数字操作单元（146）和输出单元（148）。 内部电压产生单元产生作为内部电压（Vin）的外部电源电压（VDD），以向数字操作单元提供电压。 复用单元将输入电压（IAC）和输出电压（IFB）复用以产生ADC输入信号（ADC_in）。 ADC同时接收功能信号（Func_in）和ADC输入信号。 ADC根据开关使能信号有选择地输出ADC输入信号和功能信号之一。 输出单元产生从数字操作单元输出的信号作为控制信号（GD），以向功率因数补偿控制单元提供信号。 （附图标记）（141）内电压发生单元; （142）复用单元; （146）数字操作单元; （148）输出单元;
-
公开(公告)号：KR1020110050224A
公开(公告)日：2011-05-13
申请号：KR1020090107108
申请日：2009-11-06
Applicant: 삼성전기주식회사
IPC: G11C29/10
CPC classification number: G11C29/56 , G01R31/31903 , G11C29/08
Abstract: PURPOSE: A memory testing apparatus using a variable sequence and a method thereof are provided to reduce the price of a system on chip by reducing a test time through change of a sequence. CONSTITUTION: In a memory testing apparatus using a variable sequence and a method thereof, a memory test apparatus comprises a flash memory(60), a flash controller(50), and a test equipment(20). The flash controller uses a reduction sequence or a pool sequence. The flash controller performs an integrity test. The test equipment controls the flash controller. The test equipment performs the integrity test.
Abstract translation: 目的：提供使用可变序列的存储器测试装置及其方法，以通过改变序列来减少测试时间来降低片上系统的价格。 构成：在使用可变序列的存储器测试装置及其方法中，存储器测试装置包括闪存（60），闪存控制器（50）和测试设备（20）。 闪存控制器使用还原序列或池序列。 闪存控制器执行完整性测试。 测试设备控制闪光灯控制器。 测试设备执行完整性测试。
-
公开(公告)号：KR1020080033596A
公开(公告)日：2008-04-17
申请号：KR1020060099213
申请日：2006-10-12
Applicant: 삼성전기주식회사
Abstract: A wireless communication device and its method are provided to reduce the size of a terminal and consume less power. One or more terminals transmit/receive signals. A coordinator calculates a frequency offset of signals transmitted from one or more terminals, applies the calculated frequency offset to a signal desired to be transmitted, and transmits it to the terminal. An RF receiving unit(211) receives a signal transmitted from one or more terminals. A symbol detecting unit(212) detects a symbol of the received signal. A reception frequency offset calculating unit(213) calculates a frequency offset of the signal whose symbol has been detected. A transmission frequency offset calculating unit(222) applies the frequency offset calculated by the reception frequency offset calculating unit of a receiving end to a signal to be transmitted to the terminal. An RF transmitting unit(221) transmits the frequency offset-applied signal.
Abstract translation: 提供无线通信装置及其方法以减小终端的尺寸并消耗更少的功率。 一个或多个终端发送/接收信号。 协调器计算从一个或多个终端发送的信号的频率偏移，将计算的频率偏移应用于期望发送的信号，并将其发送到终端。 RF接收单元（211）接收从一个或多个终端发送的信号。 符号检测单元（212）检测接收信号的符号。 接收频率偏移计算单元（213）计算已经检测到符号的信号的频率偏移。 发送频率偏移计算单元（222）将由接收端的接收频率偏移计算单元计算的频率偏移应用于要发送到终端的信号。 RF发送单元（221）发送施加了偏移的信号。
-
公开(公告)号：KR100790711B1
公开(公告)日：2008-01-02
申请号：KR1020060108554
申请日：2006-11-03
Applicant: 삼성전기주식회사
IPC: H04B1/44
CPC classification number: H04W52/0229 , H04W52/0293 , Y02D70/122 , Y02D70/144
Abstract: A wake-up receiver with minimum power consumption is provided to on/off-control operation of an analog receiver according to a clock signal of a digital receiver, in order to reduce operation time of the analog receiver, thereby tremendously decreasing power consumption. A clock generator(100) generates a clock signal(CLK0) of a preset frequency. An operation controller(300) controls an analog operation-on function during preset time according to the clock signal received from the clock generator. An analog receiver(400) maintains an operation-on state during preset time according to the analog operation-on control of the controller, and turns off operation after the preset time. A digital receiver(500) is turned on for operation during operation-on maintenance time of the analog receiver.
Abstract translation: 为了减少模拟接收机的操作时间，提供了具有最小功耗的唤醒接收机，用于根据数字接收机的时钟信号对模拟接收机的开/关控制操作，从而极大地降低功耗。 时钟发生器（100）产生预设频率的时钟信号（CLK0）。 操作控制器（300）根据从时钟发生器接收的时钟信号在预设时间期间控制模拟操作功能。 模拟接收机（400）根据控制器的模拟操作控制在预设时间内保持操作状态，并在预设时间之后关闭操作。 在模拟接收机的操作维护时间期间，数字接收机（500）被接通以进行操作。
-
Patent Agency Ranking
公开(公告)号：KR100770426B1
公开(公告)日：2007-10-26
申请号：KR1020060104808
申请日：2006-10-27
Applicant: 삼성전기주식회사
IPC: H04L7/00
CPC classification number: H04L7/08
Abstract: A wireless packet synchronization apparatus and a method thereof are provided to reduce packet loss, by synchronizing a packet when the difference of maximum correlation values of symbols of an input signal is equal to a period of one symbol. An A/D(Analog/Digital) conversion part(310) converts an analog input signal applied from the outside into a digital signal. A correlation calculation part(320) is connected to the A/D conversion part, and calculates a correlation value by correlating the converted input signal with a set reference code. A threshold setting part(330) is connected to the correlation calculation part, and sets a threshold value of the correlation value. A maximum correlation value detection part(340) is connected to the correlation calculation part and the threshold value setting part, and detects a maximum correlation value position in each symbol of the input signal when the correlation value is higher than the threshold value, and judges whether maximum correlation value position difference of continuous constant symbol is equal to the period of one symbol. A preamble detection part(350) is connected to the correlation calculation part and the maximum correlation value detection part, and outputs a preamble detection signal when the maximum correlation value position difference of the constant symbol is equal to the period of one symbol. A data detection part(360) receives data of the input signal when the preamble detection signal is applied.
Abstract translation: 提供一种无线分组同步装置及其方法，用于当输入信号的符号的最大相关值的差等于一个符号的周期时，通过同步分组来减少分组丢失。 A / D（模拟/数字）转换部分（310）将从外部施加的模拟输入信号转换为数字信号。 相关计算部分（320）连接到A / D转换部分，并且通过将转换的输入信号与设定的参考码相关来计算相关值。 阈值设定部（330）与相关计算部连接，设定相关值的阈值。 最大相关值检测部分（340）连接到相关计算部分和阈值设置部分，并且当相关值高于阈值时，检测输入信号的每个符号中的最大相关值位置，并且判断 连续常数符号的最大相关值位置差是否等于一个符号的周期。 前同步码检测部分350被连接到相关计算部分和最大相关值检测部分，当恒定符号的最大相关值位置差值等于一个符号的周期时，输出前同步码检测信号。 当应用前导码检测信号时，数据检测部分（360）接收输入信号的数据。
-
公开(公告)号：KR100764356B1
公开(公告)日：2007-10-08
申请号：KR1020060075379
申请日：2006-08-09
Applicant: 삼성전기주식회사
Abstract: 본 발명의 OQPSK 복조기의 타이밍 추정기는, 아날로그 수신신호(Ir,Qr)를 디지털 수신신호(r(k))로 변환하는 A/D 컨버터; 상기 A/D 컨버터로부터의 디지털 수신신호를 기설정된 시간만큼 지연시킨 후, 상기 지연된 디지털 수신신호의 공액 복소수 신호(r(k-1Tc))와 상기 A/D 컨버터로부터의 디지털 수신신호(r(k))를 위상 차분하여, 상기 디지털 수신신호(r(k))에 존재하는 주파수 오차를 상쇄시키는 미분회로부; 상기 미분회로부의 미분과 동일한 방식으로 미분된 기준 심볼과 상기 미분회로부로부터의 수신신호와의 상관 연산을 수행하여 각 상관값을 구하는 상관 연산부; 및 상기 상관 연산부로부터의 상관값에 기초해서 동기 시점을 검출하는 동기 검출부를 포함한다.
Zigbee 수신기, OQPSK 복조기, 타이밍 추정기-
公开(公告)号：KR101339475B1
公开(公告)日：2013-12-10
申请号：KR1020120111866
申请日：2012-10-09
Applicant: 삼성전기주식회사
IPC: G06K19/077 , G06K17/00
CPC classification number: G06F3/147 , G09G2330/021 , G09G2380/04
Abstract: The present invention relates to an electronic shelf label (ESL) terminal comprising: a memory for storing product information; a wireless communication unit for receiving renewal data about the product information; a control unit for processing the renewal data received in the wireless communication unit; a display unit for displaying the product information based on the renewal data processed by the control unit; a first regulator for supplying operating voltage to the wireless communication unit; a second regulator for supplying the operating voltage to the control unit; and a power control unit for controlling the first regulator and the second regulator; wherein the power control unit obtains a power on signal and turns off the first regulator based on the power on signal. [Reference numerals] (AA,CC) No;(BB,DD) Yes;(S510) Obtain a power on(ON) signal;(S520) Step of turning off(OFF) a first regulator and turning on(ON) a second regulator based on the power on(ON) signal;(S530) Initial setting step;(S540) Step of turning off the second regulator in case of obtaining a slip signal;(S550) Wake up?;(S560) Step of turning on the first regulator and turning on the second regulator;(S570) Receive renewal data about product information;(S580) Step of turning off the first regulator;(S590) Process the renewal data;(S592) Is it updated?;(S594) Update
Abstract translation: 电子货架标签（ESL）终端技术领域本发明涉及一种电子货架标签（ESL）终端，包括：存储产品信息的存储器; 无线通信单元，用于接收关于产品信息的更新数据; 用于处理在无线通信单元中接收的更新数据的控制单元; 显示单元，用于基于由控制单元处理的更新数据显示产品信息; 用于向无线通信单元提供工作电压的第一调节器; 用于向所述控制单元提供所述工作电压的第二调节器; 以及用于控制所述第一调节器和所述第二调节器的功率控制单元; 其中所述功率控制单元获得电源接通信号，并且基于所述通电信号来关闭所述第一调节器。 （AA，CC）否;（BB，DD）是;（S510）获取通电（ON）信号;（S520）关闭（关闭）第一调节器并打开（ON） 基于上电（ON）信号的第二调节器;（S530）初始设定步骤;（S540）在获得滑差信号的情况下关闭第二调节器的步骤;（S550）唤醒→;（S560）转动步骤 （S570）关闭第一个调节器的步骤;（S590）处理更新数据;（S592）是否更新？（S594） ）更新
-
公开(公告)号：KR1020130068175A
公开(公告)日：2013-06-26
申请号：KR1020110134530
申请日：2011-12-14
Applicant: 삼성전기주식회사
IPC: G05F1/70
Abstract: PURPOSE: A driving unit for PFC(Power Factor Correction), a power supply device including the same, and a driving method for PFC are provided to control errors or proportional gain according to the difference between an output voltage and a reference voltage, thereby improving dynamic characteristics. CONSTITUTION: A switch driver controller(100) is connected to an output end of an analog-digital converter to output an error convergence value. A switch driver(71) is connected to an output end of the switch driver to generate a switch driving signal according to the error convergence value. An error comparison unit compares an error to a preset threshold value and outputs a result of the comparison. An error control unit controls the error according to the result of the comparison, which is outputted from the error comparison unit. An error convergence value calculator produces the error convergence value using the outputted value of the error control unit. [Reference numerals] (100) Switch driver controller; (71) Switch driver; (72) First analogue-digital converter; (73) Second analogue-digital converter
Abstract translation: 目的：提供用于PFC（功率因数校正）的驱动单元，包括其的电源装置和用于PFC的驱动方法，以根据输出电压和参考电压之间的差来控制误差或比例增益，从而改善 动态特性。 构成：开关驱动器控制器（100）连接到模数转换器的输出端以输出误差收敛值。 开关驱动器（71）连接到开关驱动器的输出端，以根据误差收敛值产生开关驱动信号。 错误比较单元将误差与预设阈值进行比较，并输出比较结果。 误差控制单元根据从误差比较单元输出的比较结果来控制误差。 误差收敛值计算器使用误差控制单元的输出值产生误差收敛值。 （附图标记）（100）开关驱动器控制器; （71）开关驱动器; （72）第一模拟数字转换器; （73）第二模拟数字转换器
-
公开(公告)号：KR101141429B1
公开(公告)日：2012-05-03
申请号：KR1020090118902
申请日：2009-12-03
Applicant: 삼성전기주식회사
Inventor： 민상현
IPC: H04B7/02
CPC classification number: H04B7/0805
Abstract: There is provided an apparatus for selecting an antenna of a diversity antenna system that includes an antenna selector selecting one of a first antenna and a second antenna in accordance with an antenna selection signal, a receiver measuring a quality value of a signal from the antenna selected by the antenna selector and determining detection of the signal by comparing whether or not the measured quality value of the signal is higher than a predetermined first reference value, and a selection controller determining an antenna change error by comparing whether or not an antenna stay time when the signal is continuously detected is within a predetermined error available time when the signal is detected in the receiver and controls the changing of the antenna to a previous antenna when the antenna stay time is within the error available time.
-
-
-
-
-
-
-
-
-
Search Results
68
records
(took 0.023 seconds)
