公开(公告)号：US20120268197A1

公开(公告)日：2012-10-25

申请号：US13440497

申请日：2012-04-05

申请人： Yong Il Kwon ,  Han Jin Cho ,  Tah Joon Park ,  Koon Shik Cho

发明人： Yong Il Kwon ,  Han Jin Cho ,  Tah Joon Park ,  Koon Shik Cho

IPC分类号： G05F3/02

CPC分类号： G06F1/32

摘要： Disclosed herein is a pad controlling apparatus controlling current and voltage applied to a pad, the pad controlling apparatus including: a voltage drop unit dropping the voltage applied to the pad; a switching unit connected in parallel with the voltage drop unit; and a control unit comparing a level of the dropped voltage and first reference voltage with each other and turning on the switching unit on when the level of the dropped voltage is larger than the first reference voltage. According to the present invention, even though interrupt occurs from the outside, a chip may be normally operated.

摘要翻译： 这里公开了一种控制施加到焊盘的电流和电压的焊盘控制装置，焊盘控制装置包括：降压单元，降低施加到焊盘的电压; 开关单元，与所述电压降单元并联连接; 以及控制单元，其将所述下降电压和所述第一参考电压的电平相互比较，并且在所述下降电压的电平大于所述第一参考电压时接通所述开关单元。 根据本发明，即使从外部发生中断，芯片也可以正常工作。

公开(公告)号：US08094596B2

公开(公告)日：2012-01-10

申请号：US12176129

申请日：2008-07-18

申请人： U Sang Lee ,  Koon Shik Cho

发明人： U Sang Lee ,  Koon Shik Cho

IPC分类号： H04B7/00

CPC分类号： H04L7/042 ,  H04B2001/6912 ,  H04W84/10 ,  H04W84/18 ,  H04W88/04

摘要： There are provided a wireless personal area networks (WPAN) Zigbee receiver and a receiving method thereof that can obtain a spreading gain by a reduction in data rate. A wireless personal area network Zigbee receiver receiving a signal packet including a plurality of functional units having a plurality of symbols, the plurality of functional units each repeated as many as a predetermined extension number according to an aspect of the invention includes: a preamble detection unit detecting a, and generating a preamble synchronization; and an SFD synchronization unit comparing, each symbol of SFD units included in the signal packet with a predetermined SFD reference symbol continuously and repeatedly as many as the extension number, and generating an SFD synchronization signal when each of the symbols of the SFD units is equal to the SFD reference symbol as many as the extension number.

摘要翻译： 提供了可以通过降低数据速率获得扩展增益的无线个人区域网络（WPAN）ZigBee接收机及其接收方法。 根据本发明的一个方面，一种无线个人区域网络ZigBee接收机接收包括具有多个符号的多个功能单元的信号分组，所述多个功能单元每个重复多达预定分机号码，包括：前导码检测单元 检测a并产生前同步码同步; 以及SFD同步单元，将包含在信号分组中的SFD单元的每个符号与预定的SFD参考符号连续且重复地与分机号码一样进行比较，并且当SFD单元的每个符号相等时产生SFD同步信号 到SFD参考符号与分机号码一样多。

公开(公告)号：US20090102866A1

公开(公告)日：2009-04-23

申请号：US12111034

申请日：2008-04-28

申请人： Joon Hyung LIM ,  Tah Joon Park ,  Koon Shik Cho ,  Kwang Mook Lee

发明人： Joon Hyung LIM ,  Tah Joon Park ,  Koon Shik Cho ,  Kwang Mook Lee

IPC分类号： G09G5/10

CPC分类号： H05B33/0818

摘要： There is provided a lighting control apparatus using digital sigma-delta modulation, the apparatus including: a control part supplying a brightness control signal; a sigma-delta modulation part generating a carry signal according to the brightness control signal of the control part and a predetermined threshold signal by using a sigma-delta modulation method; and a lighting driving part generating a driving current according to the carry signal of the sigma-delta modulation part and supplying the generated driving current to a lighting part.

摘要翻译： 提供了一种使用数字Σ-Δ调制的照明控制装置，该装置包括：提供亮度控制信号的控制部分; Σ-Δ调制部分，通过使用Σ-Δ调制方法，根据控制部分的亮度控制信号和预定的阈值信号产生进位信号; 以及照明驱动部，其根据所述Σ-Δ调制部的进位信号产生驱动电流，并将产生的驱动电流供给到照明部。

公开(公告)号：US20120169305A1

公开(公告)日：2012-07-05

申请号：US13329942

申请日：2011-12-19

申请人： Yong Il KWON ,  Tah Joon Park ,  Koon Shik Cho

发明人： Yong Il KWON ,  Tah Joon Park ,  Koon Shik Cho

IPC分类号： G05F1/10

CPC分类号： G05F3/24

摘要： Disclosed herein is a multi-voltage regulator. The multi-voltage regulator includes an error amplifier amplifying a difference voltage between a predetermined reference voltage and a received feedback voltage; a first voltage adjusting part connected to an output terminal of the error amplifier, the first voltage adjusting part regulating a level of a voltage at a power input terminal to output the regulated voltage to a first output terminal; a second voltage adjusting part connected to the output terminal of the error amplifier, the second voltage adjusting part regulating the level of the voltage at the power input terminal to output the regulated voltage to a second output terminal; and a voltage detector detecting a voltage according to a voltage at the first output terminal and a voltage at the second output terminal to supply the detected voltage as the feedback voltage.

摘要翻译： 这里公开了一种多电压调节器。 多电压调节器包括误差放大器，放大预定参考电压和接收反馈电压之间的差分电压; 第一电压调节部分连接到误差放大器的输出端子，第一电压调节部分调节电源输入端子处的电压电平，以将调节电压输出到第一输出端子; 第二电压调节部分连接到误差放大器的输出端子，第二电压调节部分调节电源输入端子处的电压电平以将调节电压输出到第二输出端子; 以及电压检测器，根据第一输出端子处的电压和第二输出端子处的电压来检测电压，以将检测到的电压提供为反馈电压。

公开(公告)号：US07919932B2

公开(公告)日：2011-04-05

申请号：US12108778

申请日：2008-04-24

申请人： Joon Hyung Lim ,  Tah Joon Park ,  Koon Shik Cho ,  Kwang Mook Lee ,  Bo Il Seo

发明人： Joon Hyung Lim ,  Tah Joon Park ,  Koon Shik Cho ,  Kwang Mook Lee ,  Bo Il Seo

IPC分类号： H05B37/02

CPC分类号： H05B33/086

摘要： Provided is an apparatus for controlling lighting brightness including a light control unit that generates a control signal for controlling the brightness of a plurality of lightings; a digital signal generating unit that converts a signal corresponding to the control signal at each period so as to generate non-periodic digital signals; and a driving voltage generating unit that generate driving voltages by converting the digital signals into analog signals.

摘要翻译： 提供一种用于控制照明亮度的装置，包括产生用于控制多个照明亮度的控制信号的光控制单元; 数字信号发生单元，其在每个周期转换对应于控制信号的信号，以便产生非周期数字信号; 以及通过将数字信号转换为模拟信号来产生驱动电压的驱动电压产生单元。

公开(公告)号：US07643579B2

公开(公告)日：2010-01-05

申请号：US11457116

申请日：2006-07-12

申请人： Sang Hyun Min ,  Tah Joon Park ,  U Sang Lee ,  Koon Shik Cho ,  Kwang Mook Lee

发明人： Sang Hyun Min ,  Tah Joon Park ,  U Sang Lee ,  Koon Shik Cho ,  Kwang Mook Lee

IPC分类号： H04L27/22 ,  H03D3/22 ,  H04L27/06

CPC分类号： H04B14/06 ,  H04W84/10

摘要： The present invention relates to a multiple differential demodulator using a weighting value. The multiple differential demodulator according to the present invention includes a weighting value generator for integrating a real part and an imaginary part of a value acquired by multiplying one of a plurality of differentiated reception signals by a conjugated value of a differentiated PN code signal corresponding to a preset symbol, and determining the greater of the integrated real and integrated imaginary parts to apply a predetermined weighting value to the greater value, where the PN code signal is differentiated in the same fashion as the differentiated reception signals.

摘要翻译： 本发明涉及使用加权值的多重差分解调器。 根据本发明的多重差分解调器包括一个加权值产生器，用于将通过将多个差分接收信号中的一个相乘而得到的值的实部和虚部进行积分，该复数值与对应于 并且确定积分的实数和积分虚部中的较大者，以将预定加权值应用于较大值，其中PN码信号以与差分接收信号相同的方式进行微分。

公开(公告)号：US07558346B2

公开(公告)日：2009-07-07

申请号：US11427771

申请日：2006-06-29

申请人： Sang Hyun Min ,  Hyung Jin Choi ,  Jung Su Han ,  Joo Hyun Do ,  Tah Joon Park ,  Kwang Mook Lee ,  Koon Shik Cho ,  U Sang Lee

发明人： Sang Hyun Min ,  Hyung Jin Choi ,  Jung Su Han ,  Joo Hyun Do ,  Tah Joon Park ,  Kwang Mook Lee ,  Koon Shik Cho ,  U Sang Lee

IPC分类号： H04B1/00 ,  H04L27/06

CPC分类号： H04L27/2657 ,  H04B1/708 ,  H04B1/709 ,  H04L27/261 ,  H04L27/2675

摘要： The invention relates to a symbol detector for detecting symbols received in a receive modem of short-range wireless personal area network of a ZigBee system (IEEE 802.15.4). An OQPSK short-range wireless communication system according to the invention acquires frequency offset in a received signal using a symbol contained in a preamble of a packet of the signal, multi-delay-differentiates the signal by a plurality of predetermined delay times, and complex-conjugates the acquired frequency offset to eliminate the frequency offset. Then, the OQPSK short-range wireless communication system according to the invention correlates the received signal with a PN sequence delay-differentiated through the same process to detect the symbols corresponding to the received signal.

摘要翻译： 本发明涉及一种用于检测在ZigBee系统（IEEE 802.15.4）的短距离无线个域网的接收调制解调器中接收的符号的符号检测器。 根据本发明的OQPSK短距离无线通信系统使用包含在信号分组的前导码中的符号来获取接收信号中的频率偏移，将信号多延迟多个预定延迟时间，并且复数 收集频率偏移以消除频率偏移。 然后，根据本发明的OQPSK短距离无线通信系统将接收到的信号与通过相同处理延迟差分的PN序列相关，以检测对应于接收信号的符号。