公开(公告)号：US08411730B2

公开(公告)日：2013-04-02

申请号：US12955865

申请日：2010-11-29

申请人： Koji Maeda ,  Taizo Yamawaki ,  Yukinori Akamine

发明人： Koji Maeda ,  Taizo Yamawaki ,  Yukinori Akamine

IPC分类号： H04B1/38

CPC分类号： H04L27/3863 ,  H04B17/0085 ,  H04B17/21 ,  H04L25/06

摘要： The semiconductor integrated communication circuit includes:a low-noise amplifier; a receive mixer; a receive VCO; a demodulation-processing circuit; a modulation-processing circuit; a transmit mixer; a transmit VCO; a second-order-distortion-characteristic-calibration circuit; a quadrature-receive-signal-calibration circuit; and a test-signal generator. The test-signal generator generates first and second test signals using the transmit VCO. In the second-order-distortion-characteristic-calibration mode, the second-order-distortion-characteristic-calibration circuit variably changes an operation parameter of the receive mixer thereby to calibrate the second-order distortion characteristic to achieve its best condition while the first test signal is supplied to the receive mixer. In the quadrature-receive-signal-calibration mode, the quadrature-receive-signal-calibration circuit calibrates IQ mismatch of a quadrature receive signal to achieve the best condition thereof while the second test signal is supplied to the receive mixer. The integrated communication circuit can minimize the increase in chip footprint of a test-signal-generating circuit used to perform calibrations of both the second-order characteristic and IQ mismatch.

摘要翻译： 半导体集成通信电路包括：低噪声放大器; 接收混音器 接收VCO; 解调处理电路; 调制处理电路; 发射混频器; 发射VCO; 二阶畸变特征校准电路; 正交接收信号校准电路; 和测试信号发生器。 测试信号发生器使用发射VCO产生第一和第二测试信号。 在二次失真特性校准模式中，二阶失真特性校准电路可变地改变接收混频器的操作参数，从而校正二阶失真特性，以实现其最佳状态，而第一 测试信号被提供给接收混频器。 在正交接收信号校准模式中，正交接收信号校准电路校准正交接收信号的IQ失配，以实现其最佳状态，同时将第二测试信号提供给接收混频器。 集成通信电路可以最小化用于执行二阶特性和IQ失配校准的测试信号发生电路的芯片占用面积的增加。

公开(公告)号：US08442461B2

公开(公告)日：2013-05-14

申请号：US12854216

申请日：2010-08-11

申请人： Takayasu Norimatsu ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

发明人： Takayasu Norimatsu ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

IPC分类号： H03C1/62 ,  H04B17/00

CPC分类号： H04B1/0483 ,  H03C5/00 ,  H04B2001/0491

摘要： The transmitter synthesizes amplitude and phase components and calibrates a delay mismatch between amplitude and phase components with high accuracy at high speed. The transmitter has: a digital-to-analog converter (DAC) and a low-pass filter (LPF) in its amplitude-signal path; and a phase modulator operable to convert up a phase component into an RF component in its phase-signal path. In an operation of delay calibration, a test input signal is supplied to a delay-calibrating unit in the amplitude-signal path, and the delay-calibrating unit provides a test input signal to DAC. Then, LPF generates a test output signal. The delay-calibrating unit detects a delay of the test output signal relative to the test input signal, calibrates an amplitude signal delay in a range from the input of the delay-calibrating unit to the output of LPF, reduces the difference between amplitude and phase signal delays of the phase modulator in the phase-signal path.

摘要翻译： 发射机合成幅度和相位分量，并以高精度高速校准振幅和相位分量之间的延迟失配。 发射机具有：幅度信号路径中的数模转换器（DAC）和低通滤波器（LPF）; 以及相位调制器，其可操作以将相位分量转换成其相位信号路径中的RF分量。 在延迟校准的操作中，将测试输入信号提供给幅度信号路径中的延迟校准单元，并且延迟校准单元向DAC提供测试输入信号。 然后，LPF产生测试输出信号。 延迟校准单元检测测试输出信号相对于测试输入信号的延迟，校准从延迟校准单元的输入到LPF的输出的范围内的幅度信号延迟，减小幅度和相位之间的差异 相位调制器在相位信号路径中的信号延迟。

公开(公告)号：US08086188B2

公开(公告)日：2011-12-27

申请号：US12135190

申请日：2008-06-08

申请人： Satoshi Tanaka ,  Hiroshi Kamizuma ,  Koji Maeda ,  Sungwoo Cha ,  Yukinori Akamine ,  Taizo Yamawaki

发明人： Satoshi Tanaka ,  Hiroshi Kamizuma ,  Koji Maeda ,  Sungwoo Cha ,  Yukinori Akamine ,  Taizo Yamawaki

IPC分类号： H04B1/38

CPC分类号： H04B1/28

摘要： The transmitter of the transceiver includes: a transmitter-side mixers of a transmitter-side modulator; a transmitter-side voltage-controlled oscillator; and a transmitter-side divider. The divider having a dividing factor of a non-integral number is supplied with an oscillating output of the oscillator. A pair of non-quadrature local signals having a phase difference of 90° plus a predetermined offset angle is produced by the divider and supplied to the mixers. The transmitter includes a phase-shift unit which converts a pair of quadrature transmit signals having a phase difference of about 90° on an analog basis into a pair of non-quadrature shifted transmit signals. Consequently, quadrature modulation is performed by the mixers. Use of a similar configuration enables the reduction in interference of an RF signal with local signals supplied to receiver-side mixers of the receiver.

摘要翻译： 收发器的发射机包括：发射机侧调制器的发射机侧混频器; 发射机侧压控振荡器; 和发射机侧分频器。 具有非积分数的分频因子的分频器被提供有振荡器的振荡输出。 具有90°相位差和预定偏移角的一对非正交本地信号由分频器产生并提供给混频器。 发射机包括相移单元，其将具有大约90°的相位差的一对正交发射信号在模拟上转换成一对非正交移位的发射信号。 因此，正交调制由混频器执行。 使用类似的配置使得能够减少RF信号与提供给接收机的接收机侧混频器的本地信号的干扰。

公开(公告)号：US20080311860A1

公开(公告)日：2008-12-18

申请号：US12135190

申请日：2008-06-08

申请人： Satoshi Tanaka ,  Hiroshi Kamizuma ,  Koji Maeda ,  Sungwoo Cha ,  Yukinori Akamine ,  Taizo Yamawaki

发明人： Satoshi Tanaka ,  Hiroshi Kamizuma ,  Koji Maeda ,  Sungwoo Cha ,  Yukinori Akamine ,  Taizo Yamawaki

IPC分类号： H04B1/38

CPC分类号： H04B1/28

摘要： The transmitter of the transceiver includes: a transmitter-side mixers of a transmitter-side modulator; a transmitter-side voltage-controlled oscillator; and a transmitter-side divider. The divider having a dividing factor of a non-integral number is supplied with an oscillating output of the oscillator. A pair of non-quadrature local signals having a phase difference of 90° plus a predetermined offset angle is produced by the divider and supplied to the mixers. The transmitter includes a phase-shift unit which converts a pair of quadrature transmit signals having a phase difference of about 90° on an analog basis into a pair of non-quadrature shifted transmit signals. Consequently, quadrature modulation is performed by the mixers. Use of a similar configuration enables the reduction in interference of an RF signal with local signals supplied to receiver-side mixers of the receiver.

摘要翻译： 收发器的发射机包括：发射机侧调制器的发射机侧混频器; 发射机侧压控振荡器; 和发射机侧分频器。 具有非积分数的分频因子的分频器被提供有振荡器的振荡输出。 具有90°相位差和预定偏移角的一对非正交本地信号由分频器产生并提供给混频器。 发射机包括相移单元，其将具有大约90°的相位差的一对正交发射信号在模拟上转换成一对非正交移位的发射信号。 因此，正交调制由混频器执行。 使用类似的配置使得能够减少RF信号与提供给接收机的接收机侧混频器的本地信号的干扰。

公开(公告)号：US20120069876A1

公开(公告)日：2012-03-22

申请号：US13238249

申请日：2011-09-21

申请人： Hiroshi Kamizuma ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

发明人： Hiroshi Kamizuma ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

IPC分类号： H04B1/38

CPC分类号： H04B1/0082

摘要： A transceiver includes an oscillator and a plurality of communication blocks. Each of the communication blocks includes frequency dividers and mixers. Frequency dividing number of the frequency divider included in one communication block is set to an even-numbered integer, and transmission local signals supplied from the frequency dividers to the mixer become quadrature signals having a phase difference of 90 degrees. The frequency dividing number of another frequency divider in the another communication block is set to a non-integer, and communication local signals supplied from the frequency divider to the mixers become non-quadrature signals having a phase difference at a predetermined offset angle from 90 degrees. The transceiver further includes a converting unit for giving a compensation offset amount having almost the same absolute value and having a polarity opposite to that of the offset angle to communication analog signals related to the mixer of the another communication block.

摘要翻译： 收发机包括振荡器和多个通信块。 每个通信块包括分频器和混频器。 包含在一个通信块中的分频器的分频数被设置为偶数整数，并且从分频器提供给混频器的发送本地信号变为具有90度相位差的正交信号。 将另一通信块中的另一个分频器的分频数设置为非整数，并且从分频器提供给混频器的通信本地信号变为具有从90度的预定偏移角的相位差的非正交信号 。 收发器还包括转换单元，用于给出具有与相对于另一通信块的混频器相关的通信模拟信号具有几乎相同的绝对值并且具有与偏移角的极性相反的极性的补偿偏移量。

公开(公告)号：US20090156135A1

公开(公告)日：2009-06-18

申请号：US12336178

申请日：2008-12-16

申请人： Hiroshi Kamizuma ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

发明人： Hiroshi Kamizuma ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

IPC分类号： H04B1/38 ,  H04B1/16

CPC分类号： H04B1/0082

摘要： A transceiver includes an oscillator and a plurality of communication blocks. Each of the communication blocks includes frequency dividers and mixers. Frequency dividing number of the frequency divider included in one communication block is set to an even-numbered integer, and transmission local signals supplied from the frequency dividers to the mixer become quadrature signals having a phase difference of 90 degrees. The frequency dividing number of another frequency divider in the another communication block is set to a non-integer, and communication local signals supplied from the frequency divider to the mixers become non-quadrature signals having a phase difference at a predetermined offset angle from 90 degrees. The transceiver further includes a converting unit for giving a compensation offset amount having almost the same absolute value and having a polarity opposite to that of the offset angle to communication analog signals related to the mixer of the another communication block. Increase in the number of voltage-controlled oscillators for multiband communication, broadening of the band, and increase in phase noise can be reduced.

摘要翻译： 收发机包括振荡器和多个通信块。 每个通信块包括分频器和混频器。 包含在一个通信块中的分频器的分频数被设置为偶数整数，并且从分频器提供给混频器的发送本地信号变为具有90度相位差的正交信号。 将另一通信块中的另一个分频器的分频数设置为非整数，并且从分频器提供给混频器的通信本地信号变为具有从90度的预定偏移角的相位差的非正交信号 。 收发器还包括转换单元，用于给出具有与相对于另一通信块的混频器相关的通信模拟信号具有几乎相同的绝对值并且具有与偏移角的极性相反的极性的补偿偏移量。 可以减少用于多频带通信的压控振荡器的数量的增加，频带的扩大以及相位噪声的增加。

公开(公告)号：US20080113625A1

公开(公告)日：2008-05-15

申请号：US11940733

申请日：2007-11-15

申请人： Koji Maeda ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Masahiro Ito

发明人： Koji Maeda ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Masahiro Ito

IPC分类号： H04B17/00

CPC分类号： H04B1/30

摘要： When generating an RF test signal for mismatch calibration for receiver in order to calibrate reception mismatch of an I-phase signal and a Q-phase signal that are output from demodulated signal processing circuits coupled to mixers for receiving, a Tx VCO avoids covering the higher frequency of an RF received signal in an FDD system. An RF test signal generating unit generates, in a calibration mode of a mismatch calibration for receiver circuit, the RF test signal by using an oscillation output signal of the Tx VCO and other circuits, and supplies the same to the mixers for receiving via a switch. The RF test signal has a frequency within an RF reception frequency band that is higher than that of an RF transmission signal with the maximum frequency band of multiband radio frequency communications. By switching the switch in a reception mode, an output of a low-noise amplifier that amplifies the RF received signal received by an antenna is supplied to each of the mixers for receiving.

摘要翻译： 为了校准从耦合到混频器进行接收的解调信号处理电路输出的I相信号和Q相信号的接收不匹配，为接收机生成用于失配校准的RF测试信号时，Tx VCO避免覆盖较高的 FDD系统中RF接收信号的频率。 RF测试信号产生单元通过使用Tx VCO和其它电路的振荡输出信号在接收机电路的不匹配校准的校准模式中产生RF测试信号，并将其提供给用于经由开关接收的混频器 。 RF测试信号具有比具有多频带无线电频率通信的最大频带的RF传输信号的RF接收频带内的频率。 通过在接收模式下切换开关，将放大天线接收到的RF接收信号的低噪声放大器的输出提供给每个混频器进行接收。

公开(公告)号：US08346180B2

公开(公告)日：2013-01-01

申请号：US13238249

申请日：2011-09-21

申请人： Hiroshi Kamizuma ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

发明人： Hiroshi Kamizuma ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Koji Maeda

IPC分类号： H04B1/38

CPC分类号： H04B1/0082

摘要： A transceiver includes an oscillator and a plurality of communication blocks. Each of the communication blocks includes frequency dividers and mixers. Frequency dividing number of the frequency divider included in one communication block is set to an even-numbered integer, and transmission local signals supplied from the frequency dividers to the mixer become quadrature signals having a phase difference of 90 degrees. The frequency dividing number of another frequency divider in the another communication block is set to a non-integer, and communication local signals supplied from the frequency divider to the mixers become non-quadrature signals having a phase difference at a predetermined offset angle from 90 degrees. The transceiver further includes a converting unit for giving a compensation offset amount having almost the same absolute value and having a polarity opposite to that of the offset angle to communication analog signals related to the mixer of the another communication block.

摘要翻译： 收发机包括振荡器和多个通信块。 每个通信块包括分频器和混频器。 包含在一个通信块中的分频器的分频数被设置为偶数整数，并且从分频器提供给混频器的发送本地信号变为具有90度相位差的正交信号。 将另一通信块中的另一个分频器的分频数设置为非整数，并且从分频器提供给混频器的通信本地信号变为具有从90度的预定偏移角的相位差的非正交信号 。 收发器还包括转换单元，用于给出具有与相对于另一通信块的混频器相关的通信模拟信号具有几乎相同的绝对值并且具有与偏移角的极性相反的极性的补偿偏移量。

公开(公告)号：US08275325B2

公开(公告)日：2012-09-25

申请号：US13303103

申请日：2011-11-22

申请人： Satoshi Tanaka ,  Hiroshi Kamizuma ,  Koji Maeda ,  Sungwoo Cha ,  Yukinori Akamine ,  Taizo Yamawaki

发明人： Satoshi Tanaka ,  Hiroshi Kamizuma ,  Koji Maeda ,  Sungwoo Cha ,  Yukinori Akamine ,  Taizo Yamawaki

IPC分类号： H04B1/38

CPC分类号： H04B1/28

摘要： The transmitter of the transceiver includes: a transmitter-side mixers of a transmitter-side modulator; a transmitter-side voltage-controlled oscillator; and a transmitter-side divider. The divider having a dividing factor of a non-integral number is supplied with an oscillating output of the oscillator. A pair of non-quadrature local signals having a phase difference of 90° plus a predetermined offset angle is produced by the divider and supplied to the mixers. The transmitter includes a phase-shift unit which converts a pair of quadrature transmit signals having a phase difference of about 90° on an analog basis into a pair of non-quadrature shifted transmit signals. Consequently, quadrature modulation is performed by the mixers. Use of a similar configuration enables the reduction in interference of an RF signal with local signals supplied to receiver-side mixers of the receiver.

摘要翻译： 收发器的发射机包括：发射机侧调制器的发射机侧混频器; 发射机侧压控振荡器; 和发射机侧分频器。 具有非积分数的分频因子的分频器被提供有振荡器的振荡输出。 具有90°相位差和预定偏移角的一对非正交本地信号由分频器产生并提供给混频器。 发射机包括相移单元，其将具有大约90°的相位差的一对正交发射信号在模拟上转换成一对非正交移位的发射信号。 因此，正交调制由混频器执行。 使用类似的配置使得能够减少RF信号与提供给接收机的接收机侧混频器的本地信号的干扰。

公开(公告)号：US07996003B2

公开(公告)日：2011-08-09

申请号：US11940733

申请日：2007-11-15

申请人： Koji Maeda ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Masahiro Ito

发明人： Koji Maeda ,  Satoshi Tanaka ,  Taizo Yamawaki ,  Yukinori Akamine ,  Masahiro Ito

IPC分类号： H04W24/00 ,  H04B17/00

CPC分类号： H04B1/30

摘要： When generating an RF test signal for mismatch calibration for receiver in order to calibrate reception mismatch of an I-phase signal and a Q-phase signal that are output from demodulated signal processing circuits coupled to mixers for receiving, a Tx VCO avoids covering the higher frequency of an RF received signal in an FDD system. An RF test signal generating unit generates, in a calibration mode of a mismatch calibration for receiver circuit, the RF test signal by using an oscillation output signal of the Tx VCO and other circuits, and supplies the same to the mixers for receiving via a switch. The RF test signal has a frequency within an RF reception frequency band that is higher than that of an RF transmission signal with the maximum frequency band of multiband radio frequency communications. By switching the switch in a reception mode, an output of a low-noise amplifier that amplifies the RF received signal received by an antenna is supplied to each of the mixers for receiving.

摘要翻译： 为了校准从耦合到混频器进行接收的解调信号处理电路输出的I相信号和Q相信号的接收不匹配，为接收机生成用于失配校准的RF测试信号时，Tx VCO避免覆盖较高的 FDD系统中RF接收信号的频率。 RF测试信号产生单元通过使用Tx VCO和其它电路的振荡输出信号在接收机电路的不匹配校准的校准模式中产生RF测试信号，并将其提供给用于经由开关接收的混频器 。 RF测试信号具有比具有多频带无线电频率通信的最大频带的RF传输信号的RF接收频带内的频率。 通过在接收模式下切换开关，将放大天线接收到的RF接收信号的低噪声放大器的输出提供给每个混频器进行接收。