专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080100391A1 RESISTOR-CAPACITOR OSCILLATION CIRCUIT CAPABLE OF ADJUSTING OSCILLATION FREQUENCY AND METHOD OF THE SAME 失效
标题翻译：调整振荡频率的电容器电容振荡电路及其方法
公开(公告)号：US20080100391A1
公开(公告)日：2008-05-01
申请号：US11928720
申请日：2007-10-30
申请人： Joon Hyung LIM , Tah Joon Park , Kwang Mook Lee , Koon Shik Cho
发明人： Joon Hyung LIM , Tah Joon Park , Kwang Mook Lee , Koon Shik Cho
IPC分类号： H03K3/02
CPC分类号： H03K3/011 , H03L7/06
摘要： There is provided an RC oscillation circuit capable of adjusting an oscillation frequency, and an oscillation method thereof. The RC oscillation circuit including: an RC oscillator including a variable resistor and a variable capacitor, the RC oscillator generating an RC oscillating signal having a frequency determined by a resistance of the variable resistor and a capacitance of the variable capacitor; a counter counting a clock number of a reference oscillating signal corresponding to one period of the RC oscillating signal to generate a first count value, the reference oscillating signal having a preset frequency; and a frequency controller controlling a frequency of the RC oscillating signal by determining the resistance of the variable resistor and the capacitance of the variable capacitor such that a difference between the first count value and a preset second count value is smaller than a preset first critical value.
摘要翻译：提供了能够调节振荡频率的RC振荡电路及其振荡方法。 RC振荡电路包括：包括可变电阻器和可变电容器的RC振荡器，RC振荡器产生具有由可变电阻器的电阻和可变电容器的电容确定的频率的RC振荡信号; 计数对应于RC振荡信号的一个周期的参考振荡信号的时钟数，以产生第一计数值，所述参考振荡信号具有预置频率; 以及频率控制器，通过确定可变电阻器的电阻和可变电容器的电容来控制RC振荡信号的频率，使得第一计数值和预设的第二计数值之间的差小于预设的第一临界值。

2. 发明授权

US07612624B2 Resistor-capacitor oscillation circuit capable of adjusting oscillation frequency and method of the same 失效
标题翻译：电阻电容振荡电路能够调节振荡频率及其方法
公开(公告)号：US07612624B2
公开(公告)日：2009-11-03
申请号：US11928720
申请日：2007-10-30
申请人： Joon Hyung Lim , Tah Joon Park , Kwang Mook Lee , Koon Shik Cho
发明人： Joon Hyung Lim , Tah Joon Park , Kwang Mook Lee , Koon Shik Cho
IPC分类号： H03K3/02
CPC分类号： H03K3/011 , H03L7/06
摘要： An RC oscillation circuit and method capable of adjusting an oscillation frequency includes: an RC oscillator including a variable resistor and a variable capacitor, the RC oscillator generating an RC oscillating signal having a frequency determined by a resistance of the variable resistor and a capacitance of the variable capacitor; a counter counting a clock number of a reference oscillating signal corresponding to one period of the RC oscillating signal to generate a first count value, the reference oscillating signal having a preset frequency; and a frequency controller controlling a frequency of the RC oscillating signal by determining the resistance of the variable resistor and the capacitance of the variable capacitor such that a difference between the first count value and a preset second count value is smaller than a preset first critical value.
摘要翻译：一种能够调节振荡频率的RC振荡电路和方法包括：RC振荡器，包括可变电阻器和可变电容器，RC振荡器产生具有由可变电阻器的电阻确定的频率的RC振荡信号和可变电容器计数对应于RC振荡信号的一个周期的参考振荡信号的时钟数，以产生第一计数值，所述参考振荡信号具有预置频率; 以及频率控制器，通过确定可变电阻器的电阻和可变电容器的电容来控制RC振荡信号的频率，使得第一计数值和预设的第二计数值之间的差小于预设的第一临界值。

3. 发明申请

US20090160362A1 APPARATUS AND METHOD FOR CONTROLLING LIGHTING BRIGHTNESS THROUGH DIGITAL CONVERSION 有权
标题翻译：通过数字转换控制照明亮度的装置和方法
公开(公告)号：US20090160362A1
公开(公告)日：2009-06-25
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 II Seo
发明人： Joon Hyung LIM , Tah Joon Park , Koon Shik Cho , Kwang Mook Lee , Bo II 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。

4. 发明申请

US20090102866A1 LIGHTING CONTROL APPARATUS USING DIGITAL SIGMA-DELTA MODULATION 审中-公开
标题翻译：使用数字信号调制的照明控制装置
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。

5. 发明授权

US07919932B2 Apparatus and method for controlling lighting brightness through digital conversion 有权
标题翻译：通过数字转换控制照明亮度的装置和方法
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。

6. 发明授权

US07643579B2 Multiple differential demodulator using weighting value 失效
标题翻译：多重差分解调器采用加权值
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。

7. 发明授权

US07558346B2 Symbol detector based on frequency offset compensation in ZigBee system and symbol detecting method thereof 有权
标题翻译：基于ZigBee系统中频偏补偿的符号检测器及其符号检测方法
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。

8. 发明申请

US20130135910A1 POWER FACTOR CORRECTION APPARATUS, DC/DC CONVERTER, AND POWER SUPPLYING APPARATUS 审中-公开
标题翻译：功率因数校正装置，DC / DC转换器和电源设备
公开(公告)号：US20130135910A1
公开(公告)日：2013-05-30
申请号：US13591580
申请日：2012-08-22
申请人： Sang Hyun MIN , Koon Shik Cho , Jae Hyung Lee , Kwang Mook Lee
发明人： Sang Hyun MIN , Koon Shik Cho , Jae Hyung Lee , Kwang Mook Lee
IPC分类号： G05F1/70 , H02M7/06
CPC分类号： H02M1/4225 , H02M2001/0003 , Y02B70/126 , Y02P80/112
摘要： There are provided a power factor correction apparatus, a direct current/direct current (DC/DC) converter, and a power supplying apparatus, capable of preventing unstable feedback control due to a ripple component by controlling power switching based on a median value between a maximum value and a minimum value of a voltage level of the output power that is received as feedback. The power factor correction apparatus includes a power factor corrector switching input power and correcting a power factor thereof; and a controller detecting a voltage level of power factor-corrected power and controlling the switching of the power factor corrector, based on a median value between a maximum value and a minimum value of the voltage level of the power factor-corrected power detected for a predetermined period of time.
摘要翻译：提供了功率因数校正装置，直流/直流（DC / DC）转换器和供电装置，其能够通过基于中间值控制功率切换来防止由于纹波分量引起的不稳定的反馈控制作为反馈接收的输出功率的电压电平的最大值和最小值。功率因数校正装置包括功率因数校正器切换输入功率并校正其功率因数; 以及控制器，其基于所检测的功率因数校正功率的电压电平的最大值和最小值之间的中值，检测功率因数校正功率的电压电平并控制功率因数校正器的切换，预定时间段。

9. 发明申请

US20080101516A1 SYNCHRONIZATION DEVICE AND METHOD FOR WIRELESS COMMUNICATION PACKETS 审中-公开
标题翻译：用于无线通信分组的同步设备和方法
公开(公告)号：US20080101516A1
公开(公告)日：2008-05-01
申请号：US11925121
申请日：2007-10-26
申请人： Koon Shik Cho , Seung Han Ko , Jae Hyung Lee , Kwang Mook Lee , Sang Hyun Min , Sang Ho Lee , U Sang Lee
发明人： Koon Shik Cho , Seung Han Ko , Jae Hyung Lee , Kwang Mook Lee , Sang Hyun Min , Sang Ho Lee , U Sang Lee
IPC分类号： H04L7/02
CPC分类号： H04L7/08
摘要： Provided is a synchronization device for wireless communication packets, the synchronization device including an A/D (analog/digital) converter that converts an analog input signal applied from outside into a digital signal; a correlation calculating section that is connected to the A/D converter and correlates the converted input signal with a preset reference code so as to calculate a correlation value; a threshold setting section that is connected to the correlation calculating section and sets a threshold value of the correlation value; a maximum correlation detecting section that is connected to the correlation calculating section and the threshold setting section, compares the correlation value with the threshold value, detects the position of the maximum correlation value within each symbol of the input signal when the correlation value is larger than the threshold value, and judges whether a difference in position between the maximum correlation values of consecutive symbols is equal to the period of one symbol or not; a preamble detecting section that is connected to the correlation calculating section and the maximum correlation detecting section and outputs a preamble detection signal when the difference is equal to the period of one symbol; and a data detecting section that receives data of the input signal when the preamble detection signal is applied.
摘要翻译：提供了一种用于无线通信分组的同步装置，该同步装置包括将从外部施加的模拟输入信号转换为数字信号的A / D（模拟/数字）转换器; 相关计算部分，连接到A / D转换器，并将转换的输入信号与预置的参考码相关联，以便计算相关值; 阈值设定部，与相关计算部连接并设定相关值的阈值; 连接到相关计算部分和阈值设定部分的最大相关检测部分将相关值与阈值进行比较，当相关值大于该值时，检测输入信号的每个符号内的最大相关值的位置阈值，并且判断连续符号的最大相关值之间的位置差是否等于一个符号的周期; 前同步码检测部，其连接到所述相关计算部和所述最大相关检测部，并且当所述差等于一个符号的周期时，输出前同步码检测信号; 以及数据检测部分，当应用前导码检测信号时，接收输入信号的数据。

10. 发明授权

US07957452B2 Direct sequence spread spectrum transceiver 有权
标题翻译：直接序列扩频收发器
公开(公告)号：US07957452B2
公开(公告)日：2011-06-07
申请号：US12098396
申请日：2008-04-04
申请人： Sang Hyun Min , Koon Shik Cho , Jae Hyung Lee , Kwang Mook Lee
发明人： Sang Hyun Min , Koon Shik Cho , Jae Hyung Lee , Kwang Mook Lee
IPC分类号： H04B1/707
CPC分类号： H04B1/707 , H04J13/004
摘要： A direct sequence spread spectrum (DSSS) transceiver including a DSSS transmitter and a DSSS receiver, wherein the DSSS transmitter includes: an integral code mapping unit mapping source bit data in one of 2N (N is a natural number) of predetermined symbols by N bits and mapping the symbol in one of integral code words that are obtained by previously integrating each of 2N of bi-orthogonal code words; and a radio frequency (RF) transmitting unit transmitting the integral code words mapped by the integral code mapping unit over an RF carrier wave, and the DSSS receiver includes: an RF receiving unit removing an RF carrier wave from an RF signal from the RF transmitting unit and converting an analog signal obtained by removing the RF carrier wave from the RF signal into a digital signal; a differential circuit unit differentiating and converting the digital signal from the RF receiving unit into bi-orthogonal code words; and a symbol detection unit detecting a symbol corresponding to a maximum value of correlation values between bi-orthogonal code word from the differential circuit unit and a plurality of predetermined reference code words.
摘要翻译：包括DSSS发射机和DSSS接收机的直接序列扩频（DSSS）收发机，其中DSSS发射机包括：一个整数码映射单元，用于将预定符号的2N（N是自然数）之一的N比特的源比特数据映射到N比特以及将符号映射到通过预先积分2N个双正交码字中的每一个而获得的积分码字之一中的符号; 以及射频（RF）发送单元，其通过RF载波发送由积分码映射单元映射的积分码字，并且所述DSSS接收机包括：RF接收单元，从RF发射的RF信号中去除RF载波; 将通过从RF信号中去除RF载波而获得的模拟信号转换为数字信号; 差分电路单元，将来自RF接收单元的数字信号分解并转换成双正交码字; 以及符号检测单元，检测与来自差分电路单元的双正交码字和多个预定参考码字之间的相关值的最大值相对应的符号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式