公开(公告)号：US07783273B2

公开(公告)日：2010-08-24

申请号：US11543928

申请日：2006-10-06

申请人： Koji Maeda ,  Satoshi Tanaka ,  Yukinori Akamine ,  Manabu Kawabe

发明人： Koji Maeda ,  Satoshi Tanaka ,  Yukinori Akamine ,  Manabu Kawabe

IPC分类号： H04B1/10 ,  H04B7/00

CPC分类号： H04B1/30 ,  H03D3/009

摘要： The receiver, which enables rejection of image signals with higher accuracy over wider frequency band, can be provided as a low IF receiver by inputting a calibration signal of frequency fi (1≦i≦N) before reception of signals and determining the frequency response fa(z) to fd(z) of a calibrating filter in a filter mismatch calibrating circuit (FIL_CAL) 195 to make zero amplitude and phase mismatches between the I component and Q component of the quadrature demodulation signal at the frequency fIFi.

摘要翻译： 可以通过在接收信号之前输入频率fi（1＆nlE; i＆nlE; N）的校准信号，并且确定频率响应fa，可以在较宽的频带上抑制具有更高精度的图像信号的接收机作为低IF接收机 （FIL_CAL）195中的校准滤波器的（z）至fd（z），以在fIFi频率处的正交解调信号的I分量和Q分量之间产生零幅度和相位失配。

公开(公告)号：US20070080835A1

公开(公告)日：2007-04-12

申请号：US11543928

申请日：2006-10-06

申请人： Koji Maeda ,  Satoshi Tanaka ,  Yukinori Akamine ,  Manabu Kawabe

发明人： Koji Maeda ,  Satoshi Tanaka ,  Yukinori Akamine ,  Manabu Kawabe

IPC分类号： H03M1/10

CPC分类号： H04B1/30 ,  H03D3/009

摘要： The receiver, which enables rejection of image signals with higher accuracy over wider frequency band, can be provided as a low IF receiver by inputting a calibration signal of frequency fi (1≦i≦N) before reception of signals and determining the frequency response fa(z) to fd(z) of a calibrating filter in a filter mismatch calibrating circuit (FIL_CAL) 195 to make zero amplitude and phase mismatches between the I component and Q component of the quadrature demodulation signal at the frequency fIFi.

摘要翻译： 可以通过输入频率f 1的校准信号（1≤i≤N）来提供能够在较宽频带上以较高精度抑制图像信号的接收机作为低IF接收机， 在接收信号之前确定滤波器失配校准电路（FIL_CAL）195中的校准滤波器的频率响应f（z）至f（d）（z），以使 正交解调信号的I分量和Q分量之间的零幅度和相位失配在频率f IFi 。

公开(公告)号：US07346325B2

公开(公告)日：2008-03-18

申请号：US11179553

申请日：2005-07-13

申请人： Koji Maeda ,  Satoshi Tanaka ,  Irei Kyu ,  Yukinori Akamine ,  Manabu Kawabe

发明人： Koji Maeda ,  Satoshi Tanaka ,  Irei Kyu ,  Yukinori Akamine ,  Manabu Kawabe

IPC分类号： H04B1/10

CPC分类号： H04B1/30

摘要： This invention provides a receiver in which the calibration time by repeated operations to correct phase mismatch and amplitude mismatch between I and Q signals can be reduced. The receiver comprises mixers which convert received RF signals into quadrature modulated IF signals, signal paths which filter and amplify and output the quadrature modulated signals output from the mixers, a calibration circuit which calibrates phase and amplitude mismatches between the I and Q components of the quadrature modulated signals output through the signal paths, a frequency converter which, when the mixers or the signal paths selected output calibration signals with IF frequency instead of the quadrature modulated signals, converts the calibration signals into those with a frequency higher than IF frequency, and an arithmetic operation circuit which calculates phase and amplitude mismatches from the calibration signals output by the frequency converter and outputs calculation results. The calibration circuit executes calibration, using the calculation results.

摘要翻译： 本发明提供一种接收机，其中通过重复操作来校正I和Q信号之间的相位失配和幅度失配的校准时间可以减少。 该接收机包括将接收的RF信号转换为正交调制的IF信号的混频器，对从混频器输出的正交调制信号进行滤波和放大并输出的信号路径;校准电路，其校准正交的I和Q分量之间的相位和幅度失配 调制信号通过信号路径输出，频率转换器，当混频器或信号路径选择输出具有IF频率而不是正交调制信号的校准信号时，将校准信号转换为频率高于IF频率的校准信号， 算术运算电路，从由变频器输出的校准信号计算相位和幅度失配，并输出计算结果。 校准电路使用计算结果执行校准。

公开(公告)号：US20060068739A1

公开(公告)日：2006-03-30

申请号：US11179553

申请日：2005-07-13

申请人： Koji Maeda ,  Satoshi Tanaka ,  Irei Kyu ,  Yukinori Akamine ,  Manabu Kawabe

发明人： Koji Maeda ,  Satoshi Tanaka ,  Irei Kyu ,  Yukinori Akamine ,  Manabu Kawabe

IPC分类号： H04B1/10 ,  H04B1/26

CPC分类号： H04B1/30

摘要： This invention provides a receiver in which the calibration time by repeated operations to correct phase mismatch and amplitude mismatch between I and Q signals can be reduced. The receiver comprises mixers which convert received RF signals into quadrature modulated IF signals, signal paths which filter and amplify and output the quadrature modulated signals output from the mixers, a calibration circuit which calibrates phase and amplitude mismatches between the I and Q components of the quadrature modulated signals output through the signal paths, a frequency converter which, when the mixers or the signal paths selected output calibration signals with IF frequency instead of the quadrature modulated signals, converts the calibration signals into those with a frequency higher than IF frequency, and an arithmetic operation circuit which calculates phase and amplitude mismatches from the calibration signals output by the frequency converter and outputs calculation results. The calibration circuit executes calibration, using the calculation results.

摘要翻译： 本发明提供一种接收机，其中通过重复操作来校正I和Q信号之间的相位失配和幅度失配的校准时间可以减少。 该接收机包括将接收的RF信号转换为正交调制的IF信号的混频器，对从混频器输出的正交调制信号进行滤波和放大并输出的信号路径;校准电路，其校准正交的I和Q分量之间的相位和幅度失配 调制信号通过信号路径输出，频率转换器，当混频器或信号路径选择输出具有IF频率而不是正交调制信号的校准信号时，将校准信号转换为频率高于IF频率的校准信号， 算术运算电路，从由变频器输出的校准信号计算相位和幅度失配，并输出计算结果。 校准电路使用计算结果执行校准。

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：US08494456B2

公开(公告)日：2013-07-23

申请号：US13592723

申请日：2012-08-23

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：US20120320957A1

公开(公告)日：2012-12-20

申请号：US13592723

申请日：2012-08-23

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：US20120064840A1

公开(公告)日：2012-03-15

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： H04B1/40

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.

公开(公告)号：US08036605B2

公开(公告)日：2011-10-11

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： H04B1/40

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。