公开(公告)号：US07324798B2

公开(公告)日：2008-01-29

申请号：US10899148

申请日：2004-07-27

申请人： Hae-Moon Seo ,  Kwang-Ho Won ,  Yong Kuk Park ,  Myung-Hyun Yoon ,  June-Jae Yoo

发明人： Hae-Moon Seo ,  Kwang-Ho Won ,  Yong Kuk Park ,  Myung-Hyun Yoon ,  June-Jae Yoo

IPC分类号： H04B1/26

CPC分类号： H03C3/40 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1475 ,  H03D7/1483 ,  H03D2200/0084

摘要： Disclosed herein is a 2N-order sub-harmonic frequency modulator and direct conversion transmitter using the same. The direct conversion transmitter includes a digital modulation unit, a D/A conversion unit, a DC correction and low pass filter unit, a local oscillator, a poly phase signal generation unit, a 2N-order sub-harmonic I/Q frequency modulation unit, a power amplification unit, and an antenna. The digital modulation unit digitally modulates a base-band signal and then outputs I and Q component signals. The D/A conversion unit converts the I and Q component signals into analog I and Q component signals. The DC correction and low pass filter unit adjusts DC interfaces of the analog I and Q component signals, passes low frequency components of the analog I and Q component signals and generates I and Q components of a base-band signal. The local oscillator generates a sine wave signal with a frequency of FTX/2N. The poly phase signal generation unit generates a poly phase signal with 2N+1 phases. The frequency modulation unit mixes the I and Q components with the poly phase signal with 2N+1 phases to generate an output signal with a frequency of FTX. The power amplification unit amplifies the output of the frequency modulation unit to a required level. The antenna radiates the output signal of the power amplification unit.

摘要翻译： 这里公开了一种使用该二次谐波的二次谐波调制器和直接变换发射机。 直接变换发射机包括数字调制单元，D / A转换单元，DC校正和低通滤波器单元，本地振荡器，多相信号生成单元，2阶N - 和弦I / Q调频单元，功率放大单元和天线。 数字调制单元对基带信号进行数字调制，然后输出I和Q分量信号。 D / A转换单元将I和Q分量信号转换成模拟I和Q分量信号。 DC校正和低通滤波器单元调整模拟I和Q分量信号的DC接口，通过模拟I和Q分量信号的低频分量，并产生基带信号的I和Q分量。 本地振荡器产生频率为F N 2 / N 2的正弦波信号。 多相信号生成单元生成具有2个N + 1个相位的多相信号。 频率调制单元将I和Q分量与具有2个N + 1个相位的多相信号进行混合，以产生频率为F TX的输出信号。 功率放大单元将频率调制单元的输出放大到所要求的水平。 天线辐射功率放大单元的输出信号。

公开(公告)号：US20050226269A1

公开(公告)日：2005-10-13

申请号：US10874533

申请日：2004-06-24

申请人： Hae-Moon Seo ,  Yong-Kuk Park ,  Kwang-Ho Won ,  June-Jae Yoo

发明人： Hae-Moon Seo ,  Yong-Kuk Park ,  Kwang-Ho Won ,  June-Jae Yoo

IPC分类号： H04B1/10 ,  H04J3/16 ,  H04L12/28 ,  H04L12/56 ,  H04W16/14 ,  H04W24/00 ,  H04W72/02

CPC分类号： H04W72/02 ,  H04W16/14 ,  H04W24/10

摘要： Disclosed herein is an intelligent channel selection apparatus and method against various interferers in wireless communication systems, and a receiver using the same. The intelligent channel selection apparatus includes a channel power measurement unit, a channel list storage unit, a channel selection data generation unit and a channel selection unit. The channel power measurement unit measures received signal channel power of a plurality of available channels and storing the received signal channel power as channel power data. The channel list storage unit arranges the plurality of available channels and storing the plurality of available channels in a channel list. The channel selection data generation unit generates data for channel selection based on the signal channel power data and the frequency offsets of the channels of the channel list. The channel selection unit selects the highest priority channel from the channel list based on the data for channel selection.

摘要翻译： 本文公开了一种针对无线通信系统中的各种干扰的智能信道选择装置和方法，以及使用其的接收机。 智能信道选择装置包括信道功率测量单元，信道列表存储单元，信道选择数据生成单元和信道选择单元。 信道功率测量单元测量多个可用信道的接收信号信道功率，并将接收到的信道信道功率存储为信道功率数据。 频道列表存储单元布置多个可用频道并将多个可用频道存储在频道列表中。 信道选择数据生成单元基于信道信道功率数据和信道列表的信道的频率偏移来生成用于信道选择的数据。 信道选择单元基于用于信道选择的数据从信道列表中选择最高优先级信道。

公开(公告)号：US07526018B2

公开(公告)日：2009-04-28

申请号：US10976900

申请日：2004-11-01

申请人： Hae-Moon Seo ,  Yong Kuk Park ,  Kwang-Ho Won ,  June-Jae Yoo

发明人： Hae-Moon Seo ,  Yong Kuk Park ,  Kwang-Ho Won ,  June-Jae Yoo

IPC分类号： H04B1/38

CPC分类号： H04B1/0003 ,  H04B1/406

摘要： Disclosed herein is a multi-standard transceiver for supporting a plurality of time division deplexing wireless communication standards. The multi-standard transceiver has a Multi-Mode Modem (MMM), a frequency synthesizing unit, a transmission unit, a reception unit and a transmission/reception switch. The MMM selects a transmission standard and a transmission channel and performs digital modulation/demodulation. The frequency synthesizing unit variably adjusts a carrier frequency. The transmission unit receives a digital modulated signal, low-pass-filters the digital modulated signal with a bandwidth thereof variably adjusted according to the selected transmission standard, and up-converts the filtered digital modulated signal into an RF modulated signal. The reception unit down-converts the RF modulated signal, low-pass-filters the down-converted RF modulated signal with a bandwidth thereof being variably adjusted according to the selected transmission standard, and converts the filtered, down-converted RF modulated signal into a digital modulated signal.

摘要翻译： 这里公开了一种用于支持多个时分分解无缝通信标准的多标准收发器。 多标准收发器具有多模式调制解调器（MMM），频率合成单元，发送单元，接收单元和发送/接收开关。 MMM选择传输标准和传输信道，并进行数字调制/解调。 频率合成单元可变地调节载波频率。 发送单元接收数字调制信号，根据选择的发送标准以可变地调整的带宽对数字调制信号进行低通滤波，并将滤波后的数字调制信号上变频为RF调制信号。 接收单元对RF调制信号进行下变频，根据所选择的传输标准对其下变频RF调制信号进行低通滤波，其带宽可变地调整，并将滤波后的经转换的RF调制信号转换为 数字调制信号。

公开(公告)号：US07414993B2

公开(公告)日：2008-08-19

申请号：US10874533

申请日：2004-06-24

申请人： Hae-Moon Seo ,  Yong-Kuk Park ,  Kwang-Ho Won ,  June-Jae Yoo

发明人： Hae-Moon Seo ,  Yong-Kuk Park ,  Kwang-Ho Won ,  June-Jae Yoo

IPC分类号： H04B1/26

CPC分类号： H04W72/02 ,  H04W16/14 ,  H04W24/10

摘要： Disclosed herein is an intelligent channel selection apparatus and method against various interferers in wireless communication systems, and a receiver using the same. The intelligent channel selection apparatus includes a channel power measurement unit, a channel list storage unit, a channel selection data generation unit and a channel selection unit. The channel power measurement unit measures received signal channel power of a plurality of available channels and storing the received signal channel power as channel power data. The channel list storage unit arranges the plurality of available channels and storing the plurality of available channels in a channel list. The channel selection data generation unit generates data for channel selection based on the signal channel power data and the frequency offsets of the channels of the channel list. The channel selection unit selects the highest priority channel from the channel list based on the data for channel selection.

摘要翻译： 本文公开了一种针对无线通信系统中的各种干扰的智能信道选择装置和方法，以及使用其的接收机。 智能信道选择装置包括信道功率测量单元，信道列表存储单元，信道选择数据生成单元和信道选择单元。 信道功率测量单元测量多个可用信道的接收信号信道功率，并将接收到的信道信道功率存储为信道功率数据。 频道列表存储单元布置多个可用频道并将多个可用频道存储在频道列表中。 信道选择数据生成单元基于信道信道功率数据和信道列表的信道的频率偏移来生成用于信道选择的数据。 信道选择单元基于用于信道选择的数据从信道列表中选择最高优先级信道。

公开(公告)号：US20050254561A1

公开(公告)日：2005-11-17

申请号：US10976900

申请日：2004-11-01

申请人： Hae-Moon Seo ,  Yong Park ,  Kwang-Ho Won ,  June-Jae Yoo

发明人： Hae-Moon Seo ,  Yong Park ,  Kwang-Ho Won ,  June-Jae Yoo

IPC分类号： H04B1/38 ,  H04B1/40

CPC分类号： H04B1/0003 ,  H04B1/406

摘要： Disclosed herein is a multi-standard transceiver for supporting a plurality of time division deplexing wireless communication standards. The multi-standard transceiver has a Multi-Mode Modem (MMM), a frequency synthesizing unit, a transmission unit, a reception unit and a transmission/reception switch. The MMM selects a transmission standard and a transmission channel and performs digital modulation/demodulation. The frequency synthesizing unit variably adjusts a carrier frequency. The transmission unit receives a digital modulated signal, low-pass-filters the digital modulated signal with a bandwidth thereof variably adjusted according to the selected transmission standard, and up-converts the filtered digital modulated signal into an RF modulated signal. The reception unit down-converts the RF modulated signal, low-pass-filters the down-converted RF modulated signal with a bandwidth thereof being variably adjusted according to the selected transmission standard, and converts the filtered, down-converted RF modulated signal into a digital modulated signal.

摘要翻译： 这里公开了一种用于支持多个时分分解无缝通信标准的多标准收发器。 多标准收发器具有多模式调制解调器（MMM），频率合成单元，发送单元，接收单元和发送/接收开关。 MMM选择传输标准和传输信道，并执行数字调制/解调。 频率合成单元可变地调节载波频率。 发送单元接收数字调制信号，根据选择的发送标准以可变地调整的带宽对数字调制信号进行低通滤波，并将滤波后的数字调制信号上变频为RF调制信号。 接收单元对RF调制信号进行下变频，根据所选择的传输标准对其下变频RF调制信号进行低通滤波，其带宽可变地调整，并将滤波后的经转换的RF调制信号转换为 数字调制信号。

公开(公告)号：US20050255806A1

公开(公告)日：2005-11-17

申请号：US10899148

申请日：2004-07-27

申请人： Hae-Moon Seo ,  Kwang-Ho Won ,  Yong Park ,  Myung-Hyun Yoon ,  June-Jae Yoo

发明人： Hae-Moon Seo ,  Kwang-Ho Won ,  Yong Park ,  Myung-Hyun Yoon ,  June-Jae Yoo

IPC分类号： H04L27/36 ,  H03C3/40 ,  H03D7/14 ,  H04B7/14

CPC分类号： H03C3/40 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1475 ,  H03D7/1483 ,  H03D2200/0084

摘要： Disclosed herein is a 2N-order sub-harmonic frequency modulator and direct conversion transmitter using the same. The direct conversion transmitter includes a digital modulation unit, a D/A conversion unit, a DC correction and low pass filter unit, a local oscillator, a poly phase signal generation unit, a 2N-order sub-harmonic I/Q frequency modulation unit, a power amplification unit, and an antenna. The digital modulation unit digitally modulates a base-band signal and then outputs I and Q component signals. The D/A conversion unit converts the I and Q component signals into analog I and Q component signals. The DC correction and low pass filter unit adjusts DC interfaces of the analog I and Q component signals, passes low frequency components of the analog I and Q component signals and generates I and Q components of a base-band signal. The local oscillator generates a sine wave signal with a frequency of FTX/2N. The poly phase signal generation unit generates a poly phase signal with 2N+1 phases. The frequency modulation unit mixes the I and Q components with the poly phase signal with 2N+1 phases to generate an output signal with a frequency of FTX. The power amplification unit amplifies the output of the frequency modulation unit to a required level. The antenna radiates the output signal of the power amplification unit.

摘要翻译： 这里公开了一种使用该二次谐波的二次谐波调制器和直接变换发射机。 直接变换发射机包括数字调制单元，D / A转换单元，DC校正和低通滤波器单元，本地振荡器，多相信号生成单元，2阶N - 和弦I / Q调频单元，功率放大单元和天线。 数字调制单元对基带信号进行数字调制，然后输出I和Q分量信号。 D / A转换单元将I和Q分量信号转换成模拟I和Q分量信号。 DC校正和低通滤波器单元调整模拟I和Q分量信号的DC接口，通过模拟I和Q分量信号的低频分量，并产生基带信号的I和Q分量。 本地振荡器产生频率为F N 2 / N 2的正弦波信号。 多相信号生成单元生成具有2个N + 1个相位的多相信号。 频率调制单元将I和Q分量与具有2个N + 1个相位的多相信号进行混合，以产生频率为F TX的输出信号。 功率放大单元将频率调制单元的输出放大到所要求的水平。 天线辐射功率放大单元的输出信号。

公开(公告)号：US07580478B2

公开(公告)日：2009-08-25

申请号：US11313616

申请日：2005-12-22

申请人： Hae-Moon Seo ,  Yeon-Kuk Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Myung-Hyun Yoon ,  Seong-Dong Kim

发明人： Hae-Moon Seo ,  Yeon-Kuk Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Myung-Hyun Yoon ,  Seong-Dong Kim

IPC分类号： H03C3/00 ,  H04B1/26

CPC分类号： H03D7/145 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0084

摘要： The present invention relates to an I/Q modulator using a current-mixing method used for a direct conversion wireless communication transmitter. In accordance with the present invention, an EVM of a wireless communication system, a linearity and a power consumption are improved by converting a D/A converted signal to a current level and then performing a frequency modulation.

摘要翻译： 本发明涉及使用用于直接转换无线通信发射机的电流混合方法的I / Q调制器。 根据本发明，通过将D / A转换的信号转换为当前电平然后执行频率调制，可以提高无线通信系统的EVM，线性度和功耗。

公开(公告)号：US07783268B2

公开(公告)日：2010-08-24

申请号：US11847795

申请日：2007-08-30

申请人： Hae-Moon Seo ,  Yeon-Kuk Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Seong-Dong Kim

发明人： Hae-Moon Seo ,  Yeon-Kuk Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Seong-Dong Kim

IPC分类号： H04B1/02 ,  H04B1/04 ,  H04L27/00

CPC分类号： H04B1/0483 ,  H03F1/02 ,  H03F3/24 ,  H04B2001/045

摘要： A transmitter and a transmitting method of a wireless communication system are provided. The transmitter transmits RF signals using an outphasing scheme of converting one analog IF NC-EMS into two analog C-EMSs. In the transmitter, a baseband processor generates a baseband digital modulated I-signal and a baseband digital modulated Q-signal. An IF processor up-converts the baseband digital modulated I-signal and the baseband digital modulated Q-signal to generate one digital IF NC-EMS. A signal component separator separates the digital IF NC-EMS into a first digital IF C-EMS and a second digital IF C-EMS. An RF processor up-converts the first digital IF C-EMS and the second digital IF C-EMS to generate a first analog RF C-EMS and a second analog RF C-EMS. A power amplifier amplifies powers of the first and second analog RF C-EMSs. An RF combiner combines the first and second analog RF C-EMSs having the amplified powers to generate one combined analog RF C-EMS.

摘要翻译： 提供了一种无线通信系统的发射机和发射方法。 发射机使用将一个模拟IF NC-EMS转换成两个模拟C-EMS的外部方案来发射RF信号。 在发射机中，基带处理器产生基带数字调制I信号和基带数字调制Q信号。 IF处理器对基带数字调制I信号和基带数字调制Q信号进行升级转换，以生成一个数字IF NC-EMS。 信号分量分离器将数字IF NC-EMS分离成第一数字IF C-EMS和第二数字IF C-EMS。 RF处理器对第一个数字IF C-EMS和第二个数字IF C-EMS进行升级转换，以生成第一个模拟RF C-EMS和第二个模拟RF C-EMS。 功率放大器放大第一和第二模拟RF C-EMS的功率。 RF组合器组合具有放大功率的第一和第二模拟RF C-EMS以产生一个组合的模拟RF C-EMS。

公开(公告)号：US20090054013A1

公开(公告)日：2009-02-26

申请号：US11847763

申请日：2007-08-30

申请人： Hae-Moon Seo ,  Yeon-Kuk Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Seong-Dong Kim

发明人： Hae-Moon Seo ,  Yeon-Kuk Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Seong-Dong Kim

IPC分类号： H04B1/02

CPC分类号： H04B1/0483

摘要： A transmitter and a transmitting method of a wireless communication system are provided. The transmitter transmits RF signals using an outphasing scheme of converting one analog IF NC-EMS into two analog C-EMSs. In the transmitter, a baseband processor generates a baseband digital modulated I-signal and a baseband digital modulated Q-signal. A signal converter converts the baseband digital modulated I-signal and the baseband digital modulated Q-signal into a baseband analog modulated I-signal and a baseband analog modulated Q-signal. An IF processor up-converts the baseband analog modulated I-signal and the baseband analog modulated Q-signal to generate one analog IF NC-EMS. A signal component separator separates the analog IF NC-EMS into a first analog IF C-EMS and a second analog IF C-EMS. An RF processor up-converts the first analog IF C-EMS and the second analog IF C-EMS to generate a first analog RF C-EMS and a second analog RF C-EMS. A power amplifier amplifies powers of the first and second analog RF C-EMSs. An RF combiner combines the first and second analog RF C-EMSs having the amplified powers to generate one combined analog RF C-EMS.

摘要翻译： 提供了一种无线通信系统的发射机和发射方法。 发射机使用将一个模拟IF NC-EMS转换成两个模拟C-EMS的外部方案来发射RF信号。 在发射机中，基带处理器产生基带数字调制I信号和基带数字调制Q信号。 信号转换器将基带数字调制I信号和基带数字调制Q信号转换成基带模拟调制I信号和基带模拟调制Q信号。 IF处理器对基带模拟调制信号和基带模拟调制Q信号进行升压转换，以生成一个模拟IF NC-EMS。 信号分量分离器将模拟IF NC-EMS分为第一模拟IF C-EMS和第二模拟IF C-EMS。 RF处理器将第一个模拟IF C-EMS和第二个模拟IF C-EMS升级转换，生成第一个模拟RF C-EMS和第二个模拟RF C-EMS。 功率放大器放大第一和第二模拟RF C-EMS的功率。 RF组合器组合具有放大功率的第一和第二模拟RF C-EMS以产生一个组合的模拟RF C-EMS。

公开(公告)号：US07590391B2

公开(公告)日：2009-09-15

申请号：US11616451

申请日：2006-12-27

申请人： Hae-Moon Seo ,  Yeon-Kug Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Seong-Dong Kim

发明人： Hae-Moon Seo ,  Yeon-Kug Moon ,  Young-Kuk Park ,  Kwang-Ho Won ,  Seong-Dong Kim

IPC分类号： H04B1/38 ,  H04B1/04 ,  H04L27/00

CPC分类号： H04B1/0475 ,  H04B2001/0491

摘要： A digital intermediate frequency transmitter for a wireless communication is disclosed. In accordance with the present invention, an improvement of a modulation quality such as an EVM, a linearity and a power consumption is possible, and a main characteristic of a wireless communication transmitter may be embodied at a low cost through an integration such that a high frequency 90° phase shifter, a voltage controlled oscillator having a 2× frequency or higher and a high frequency I/Q local oscillated signals are not required and a side-band signal may be effectively removed.

摘要翻译： 公开了一种用于无线通信的数字中频发射机。 根据本发明，可以提高诸如EVM，线性度和功耗的调制质量，并且通过集成可以以低成本实现无线通信发射机的主要特征，使得高 频率90°移相器，不需要具有2x频率或更高频率的高压I / Q本地振荡信号的压控振荡器，并且可以有效地去除边带信号。