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1. 发明授权

US07450906B2 Method and apparatus for removing cross modulation noise in a wireless transceiver 有权
标题翻译：用于消除无线收发器中的交叉调制噪声的方法和装置
公开(公告)号：US07450906B2
公开(公告)日：2008-11-11
申请号：US11286171
申请日：2005-11-23
申请人： Hee-Chan Choi , Hyung-Weon Park
发明人： Hee-Chan Choi , Hyung-Weon Park
IPC分类号： H04B1/00
CPC分类号： H04B1/109 , H04B1/525
摘要： A method and apparatus are provided for removing cross modulation (CM) noise in a wireless transceiver. A determination is made as to whether a transmission signal to be supplied to a transmitter of the wireless transceiver is present. If the transmission signal is present, a level of the transmission signal is determined. When a value of the transmission signal level is equal to or greater than a predetermined value, a first number of filtering operations are performed on a received signal to be input into a receiver of the wireless transceiver. However, when no transmission signal is present or the value of the transmission signal level is less than the predetermined value, a second number of filtering operations are performed on the received signal to be input into the receiver of the wireless transceiver. The first number of filtering operations being greater than the second number of filtering operations.
摘要翻译：提供了一种用于去除无线收发器中的交叉调制（CM）噪声的方法和装置。确定是否存在要提供给无线收发器的发射机的发送信号。如果发送信号存在，则确定发送信号的电平。当传输信号电平的值等于或大于预定值时，对要被输入无线收发器的接收机的接收信号执行第一数量的滤波操作。然而，当不存在传输信号或者传输信号电平的值小于预定值时，对要被输入到无线收发器的接收机的接收信号执行第二数量的滤波操作。第一数量的过滤操作大于第二数量的过滤操作。

2. 发明申请

US20060111132A1 Method and apparatus for removing cross modulation noise in a wireless transceiver 有权
标题翻译：用于消除无线收发器中的交叉调制噪声的方法和装置
公开(公告)号：US20060111132A1
公开(公告)日：2006-05-25
申请号：US11286171
申请日：2005-11-23
申请人： Hee-Chan Choi , Hyung-Weon Park
发明人： Hee-Chan Choi , Hyung-Weon Park
IPC分类号： H04B15/00
CPC分类号： H04B1/109 , H04B1/525
摘要： A method and apparatus are provided for removing cross modulation (CM) noise in a wireless transceiver. A determination is made as to whether a transmission signal to be supplied to a transmitter of the wireless transceiver is present. If the transmission signal is present, a level of the transmission signal is determined. When a value of the transmission signal level is equal to or greater than a predetermined value, a first number of filtering operations are performed on a received signal to be input into a receiver of the wireless transceiver. However, when no transmission signal is present or the value of the transmission signal level is less than the predetermined value, a second number of filtering operations are performed on the received signal to be input into the receiver of the wireless transceiver. The first number of filtering operations being greater than the second number of filtering operations.
摘要翻译：提供了一种用于去除无线收发器中的交叉调制（CM）噪声的方法和装置。确定是否存在要提供给无线收发器的发射机的发送信号。如果发送信号存在，则确定发送信号的电平。当传输信号电平的值等于或大于预定值时，对要被输入无线收发器的接收机的接收信号执行第一数量的滤波操作。然而，当不存在传输信号或者传输信号电平的值小于预定值时，对要被输入到无线收发器的接收机的接收信号执行第二数量的滤波操作。第一数量的过滤操作大于第二数量的过滤操作。

3. 发明授权

US07676244B2 Multi-mode-multi-band wireless transceiver 有权
标题翻译：多模多频无线收发器
公开(公告)号：US07676244B2
公开(公告)日：2010-03-09
申请号：US11505641
申请日：2006-08-17
申请人： Hyung-Weon Park , Young-Il Son , Woo-Yong Lee
发明人： Hyung-Weon Park , Young-Il Son , Woo-Yong Lee
IPC分类号： H04M1/00
CPC分类号： H04B1/406 , H04B1/006 , H04B1/0071 , H04B1/52
摘要： Disclosed is a multi-mode/multi-band wireless transceiver. The multi-mode/multi-band wireless transceiver includes a tunable duplexer including transmission and reception channel filters of which transmission and reception channel filtering frequencies respectively are controlled by an external element; and a control portion for controlling the transmission and reception channel filtering frequencies to correspond to transmission and reception channels of a current service band. Thus, a use of a RF SAW filter is unnecessary, while it is possible to support the multi-mode/multi-band using a tunable duplexer. Therefore, the number of parts and volume of the transceiver can be reduced, and it is possible to weaken a specification of an RF system.
摘要翻译：公开了一种多模/多频无线收发器。多模/多频无线收发器包括可调谐双工器，其包括传输和接收信道滤波器，发射和接收信道滤波频率分别由外部元件控制; 以及用于控制发送和接收信道过滤频率以对应于当前服务频带的发送和接收信道的控制部分。因此，不需要使用RF SAW滤波器，而可以使用可调谐双工器来支持多模/多频带。因此，可以减少收发器的部件和体积的数量，并且可以削弱RF系统的规格。

4. 发明授权

US06999012B2 Temperature compensation device for automatic gain control loop 失效
标题翻译：用于自动增益控制回路的温度补偿装置
公开(公告)号：US06999012B2
公开(公告)日：2006-02-14
申请号：US10912664
申请日：2004-08-05
申请人： Seung-Hwan Kim , Hyung-Weon Park
发明人： Seung-Hwan Kim , Hyung-Weon Park
IPC分类号： H03M1/06
CPC分类号： H03M1/0621 , H03G3/3068 , H03M1/185
摘要： A temperature compensation device for an automatic gain control loop in a receiver of a mobile communication terminal is disclosed. The temperature compensation device comprises a thermistor having a resistance varying with temperature to vary its output voltage, an analog/digital converter for converting the output voltage from the thermistor into a digital signal, and a temperature compensator for outputting a temperature compensation value in response to a digital signal based on a specific temperature variation from the analog/digital converter.
摘要翻译：公开了一种用于移动通信终端的接收机中的自动增益控制环路的温度补偿装置。温度补偿装置包括具有随温度变化的电阻以改变其输出电压的热敏电阻，用于将来自热敏电阻的输出电压转换为数字信号的模拟/数字转换器，以及用于响应于温度补偿值输出温度补偿值的温度补偿器基于来自模拟/数字转换器的特定温度变化的数字信号。

5. 发明申请

US20050073450A1 Temperature compensation device for automatic gain control loop 失效
标题翻译：用于自动增益控制回路的温度补偿装置
公开(公告)号：US20050073450A1
公开(公告)日：2005-04-07
申请号：US10912664
申请日：2004-08-05
申请人： Seung-Hwan Kim , Hyung-Weon Park
发明人： Seung-Hwan Kim , Hyung-Weon Park
IPC分类号： H04B1/40 , H03G3/30 , H03M1/06 , H03M1/18
CPC分类号： H03M1/0621 , H03G3/3068 , H03M1/185
摘要： A temperature compensation device for an automatic gain control loop in a receiver of a mobile communication terminal is disclosed. The temperature compensation device comprises a thermistor having a resistance varying with temperature to vary its output voltage, an analog/digital converter for converting the output voltage from the thermistor into a digital signal, and a temperature compensator for outputting a temperature compensation value in response to a digital signal based on a specific temperature variation from the analog/digital converter.
摘要翻译：公开了一种用于移动通信终端的接收机中的自动增益控制环路的温度补偿装置。温度补偿装置包括具有随温度变化的电阻以改变其输出电压的热敏电阻，用于将来自热敏电阻的输出电压转换为数字信号的模拟/数字转换器，以及用于输出温度补偿值以响应于基于来自模拟/数字转换器的特定温度变化的数字信号。

6. 发明授权

US5937335A Transmission and reception apparatus having a single phase-locked loop and method thereof 失效
标题翻译：具有单个锁相环的发送和接收装置及其方法
公开(公告)号：US5937335A
公开(公告)日：1999-08-10
申请号：US630825
申请日：1996-04-10
申请人： Jae-Sun Park , Sung-Soo Kim , Joung-Kyou Park , Hyung-Weon Park
发明人： Jae-Sun Park , Sung-Soo Kim , Joung-Kyou Park , Hyung-Weon Park
IPC分类号： H04B1/40
CPC分类号： H04B1/405
摘要： A transmission and reception method and apparatus is capable of supplying local oscillation frequencies for upconversion and downconversion, as well as carrier frequencies for modulation and demodulation by utilizing only one local oscillator. The apparatus includes a reference signal generator for generating a reference signal, and a phase locked loop for locking the output of the reference signal generator to a predetermined frequency. A signal generator generates a signal in response to the output provided from the phase locked loop, and provides the signal to phase shifters in modulation and demodulation circuits. A first frequency multiplier multiplies the output of the signal generator, a first band pass filter band pass filters the output of the first frequency multiplier, and a first amplifier amplifies the output of the first band pass filter and provides the amplified result to an upconversion mixer. A second frequency multiplier multiplies the output of the signal generator, a second band pass filter band pass filters the output of the second frequency multiplier, and a second amplifier amplifies the output of the second band pass filter and provides the amplified result to a downconversion mixer.
摘要翻译：发送和接收方法和装置能够通过仅使用一个本地振荡器来提供用于上变频和下变频的本地振荡频率以及用于调制和解调的载波频率。该装置包括用于产生参考信号的参考信号发生器和用于将参考信号发生器的输出锁定到预定频率的锁相环。信号发生器响应于从锁相环输出的输出产生信号，并将信号提供给调制和解调电路中的移相器。第一倍频器将信号发生器的输出相乘，第一带通滤波器带通滤波第一倍频器的输出，第一放大器放大第一带通滤波器的输出，并将放大结果提供给上变频混频器。第二倍频器将信号发生器的输出相乘，第二带通滤波器带通滤波第二倍频器的输出，第二放大器放大第二带通滤波器的输出，并将放大结果提供给下变频混频器。

7. 发明申请

US20090072900A1 APPARATUS AND METHOD FOR COMPENSATING FOR NONLINEARITY IN PORTABLE COMMUNICATION TERMINAL 审中-公开
标题翻译：用于补充便携式通信终端中非线性的装置和方法
公开(公告)号：US20090072900A1
公开(公告)日：2009-03-19
申请号：US12233275
申请日：2008-09-18
申请人： Hyung-Weon PARK , Seung-Hwan Kim , Shin-Ho Kim
发明人： Hyung-Weon PARK , Seung-Hwan Kim , Shin-Ho Kim
IPC分类号： H03F1/32 , H04L5/14
CPC分类号： H04L27/367 , H03F1/32 , H03F1/3282 , H03F3/24 , H03F2200/447 , H03F2200/451 , H03F2200/468 , H04L27/2626
摘要： An apparatus and method for compensating for nonlinearity of a portable communication terminal are provided. The apparatus includes a modem for modulating Transmission (Tx) data, a Digital Pre-Distortion (DPD) mode controller for obtaining power level information and for determining a power on/off state of a DPD unit by using the obtained information in the Tx mode, and the DPD unit for outputting the modulated data input from the modem without performing a DPD operation when power is off, and for outputting the modulated data input from the modem by performing the DPD operation when power is on.
摘要翻译：提供了一种用于补偿便携式通信终端的非线性的装置和方法。该装置包括用于调制传输（Tx）数据的调制解调器，数字预失真（DPD）模式控制器，用于通过使用获得的Tx模式的信息来获得功率电平信息和用于确定DPD单元的电源接通/断开状态 DPD单元，用于在电源关闭时输出从调制解调器输入的调制数据，而不执行DPD操作，并且用于在电源接通时通过执行DPD操作输出从调制解调器输入的调制数据。

8. 发明申请

US20050078031A1 Method of receiving GPS signal in a mobile terminal 有权
标题翻译：在移动终端中接收GPS信号的方法
公开(公告)号：US20050078031A1
公开(公告)日：2005-04-14
申请号：US10912670
申请日：2004-08-05
申请人： Hyung-Weon Park , Seung-Hwan Kim
发明人： Hyung-Weon Park , Seung-Hwan Kim
IPC分类号： H04B7/26 , G01S1/00 , G01S19/24 , G01S19/36 , G01S5/14
CPC分类号： G01S19/36 , G01S19/24
摘要： A GPS signal receiving method in a mobile terminal having a first reception path and a second reception path is provided. Upon request for GPS signal reception while receiving a CDMA signal in the first reception path, the received strength of a GPS signal is measured. If the GPS signal strength is equal to or greater than a predetermined threshold, the GPS signal is received in the first reception path. If the GPS signal strength is less than the predetermined threshold, the GPS signal is received in the second reception path.
摘要翻译：提供了具有第一接收路径和第二接收路径的移动终端中的GPS信号接收方法。当在第一接收路径中接收CDMA信号时请求GPS信号接收，测量GPS信号的接收强度。如果GPS信号强度等于或大于预定阈值，则在第一接收路径中接收GPS信号。如果GPS信号强度小于预定阈值，则在第二接收路径中接收GPS信号。

9. 发明授权

US5995853A Power control technique of radio communication system 失效
标题翻译：无线电通信系统功率控制技术
公开(公告)号：US5995853A
公开(公告)日：1999-11-30
申请号：US928590
申请日：1997-09-12
申请人： Hyung-Weon Park
发明人： Hyung-Weon Park
IPC分类号： H03G3/30 , H04B1/04 , H04B1/38 , H04B7/00
CPC分类号： H03G3/3042
摘要： A radio transmission/reception system using the same frequency includes a power control circuit which can prevent a sensitivity of the receiver from being lowered due to the carrier radiated from the transmitter, and finely control the power. The power control circuit includes first and second variable attenuators being respectively installed at an intermediate frequency stage and a local oscillator frequency stage, so as to finely control the power level of a next radio frequency stage. A CPU (central processing unit) controls amounts of attenuation of the first and second variable attenuators. Each of the first and second attenuators includes a first pin diode connected so as to be turned on in response to a signal level from the intermediate frequency stage and so as to generate a first current flowing toward an output of the attenuator, and a second pin diode connected so as to be turned on in response to a signal level from the central processing unit and so as to generate a second current flowing in an opposite direction of the first current.
摘要翻译：使用相同频率的无线电发送/接收系统包括功率控制电路，其能够防止由于从发射机辐射的载波导致接收机的灵敏度降低，并且精细地控制功率。功率控制电路包括分别安装在中频级和本地振荡器频级的第一和第二可变衰减器，以便精细地控制下一个射频级的功率电平。 CPU（中央处理单元）控制第一和第二可变衰减器的衰减量。第一衰减器和第二衰减器中的每一个包括第一引脚二极管，其被连接以便响应于来自中频级的信号电平而导通，并且产生朝向衰减器的输出流动的第一电流，以及第二引脚二极管被连接以响应于来自中央处理单元的信号电平而导通，以便产生沿第一电流的相反方向流动的第二电流。

10. 发明授权

US08457246B2 Apparatus and method for envelope tracking power amplifier in wireless communication system 有权
标题翻译：无线通信系统中包络跟踪功率放大器的装置及方法
公开(公告)号：US08457246B2
公开(公告)日：2013-06-04
申请号：US12876555
申请日：2010-09-07
申请人： Shin-Ho Kim , Hyung-Weon Park
发明人： Shin-Ho Kim , Hyung-Weon Park
IPC分类号： H04L27/00
CPC分类号： H04L27/366 , H03F1/0266
摘要： An apparatus and method for amplifying a Transmit (Tx) signal according to an Envelope Tacking (ET) scheme in a wireless communication system are provided. A transmitting end apparatus includes an envelope gain controller for controlling a gain of a digital baseband Tx signal in accordance with power control, a detector for detecting an envelope signal from the digital baseband Tx signal whose gain is controlled, and for shaping on the envelope signal, a first Digital to Analog Converter (DAC) for converting the shaped envelope signal into an analog signal, and an envelope modulator for generating a drain bias of a power amplifier that amplifies a Radio Frequency (RF) Tx signal by using the analog envelope signal. Accordingly, a digital-based ET scheme is implemented, and by using a plurality of shaping tables, efficiency of the ET scheme can be maximized in a transmitting end that uses power control.
摘要翻译：提供了一种用于在无线通信系统中根据信封贴（ET）方案放大发送（Tx）信号的装置和方法。发送端装置包括：包络增益控制器，用于根据功率控制来控制数字基带Tx信号的增益;检测器，用于检测来自其增益被控制的数字基带Tx信号的包络信号，以及对包络信号进行整形，用于将成形包络信号转换为模拟信号的第一数模转换器（DAC）和用于产生放大射频（RF）Tx信号的功率放大器的漏极偏置的包络调制器，该功率放大器通过使用模拟包络信号。因此，实现基于数字的ET方案，并且通过使用多个整形表，可以在使用功率控制的发送端最大化ET方案的效率。

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