-
公开(公告)号：US20120034875A1
公开(公告)日：2012-02-09
申请号：US13052371
申请日：2011-03-21
CPC分类号： H03G3/3052 , H03F3/195 , H03F3/45475 , H03F3/45977 , H03F2200/321 , H03F2200/451 , H03F2203/45138 , H03F2203/45424 , H03F2203/45438 , H03F2203/45446 , H03F2203/45522
摘要： A radio apparatus capable of correcting a direct current offset with high accuracy in a short time is provided. A radio apparatus according to an embodiment includes a first amplifier amplifying a signal inputted to an input terminal with amplification gain determined by a variable resistor to generate a first amplified signal, and a second amplifier amplifying the first amplified signal to generate a second amplified signal. Further, the radio apparatus includes a first correcting unit correcting a direct current offset of the first amplifier, and a second correcting unit correcting a direct current offset of the second amplifier. The radio apparatus also includes a reference voltage source or reference current source supplying a reference voltage or reference current for referring a direct current offset to the first amplifier and the second amplifier, again controller controlling the amplification gain of the first amplifier; and a correction controller controlling the gain controller to set the amplification gain to maximum and controlling the first and second correcting units to perform correction of the second correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the second amplifier, and thereafter perform correction of the first correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the first amplifier.
摘要翻译： 提供能够在短时间内以高精度校正直流偏移的无线电装置。 根据实施例的无线电设备包括：放大输入到输入端的信号的第一放大器，其具有由可变电阻器确定的放大增益以产生第一放大信号;以及第二放大器，放大第一放大信号以产生第二放大信号。 此外，无线电设备包括校正第一放大器的直流偏移的第一校正单元和校正第二放大器的直流偏移的第二校正单元。 无线电设备还包括参考电压源或参考电流源，其提供用于将直流偏移引用到第一放大器和第二放大器的参考电压或参考电流，再次控制器控制第一放大器的放大增益; 以及校正控制器，控制增益控制器将放大增益设定为最大，并且基于通过将参考电压或参考电流输入到输入端获得的第二放大信号来控制第一和第二校正单元执行第二校正单元的校正 终端，然后基于通过将参考电压或参考电流输入到第一放大器的输入端而获得的第二放大信号来执行第一校正单元的校正。
-
2.发明授权Radio apparatus having first and second amplifiers and which performs direct current offset correction of the first and second amplifiers 有权具有第一和第二放大器并且执行第一和第二放大器的直流偏移校正的无线电设备公开(公告)号：US08489030B2
公开(公告)日：2013-07-16
申请号：US13052371
申请日：2011-03-21
IPC分类号： H04B1/00
CPC分类号： H03G3/3052 , H03F3/195 , H03F3/45475 , H03F3/45977 , H03F2200/321 , H03F2200/451 , H03F2203/45138 , H03F2203/45424 , H03F2203/45438 , H03F2203/45446 , H03F2203/45522
摘要： A radio apparatus capable of correcting a direct current offset with high accuracy in a short time is provided. A radio apparatus according to an embodiment includes a first amplifier amplifying a signal inputted to an input terminal with amplification gain determined by a variable resistor to generate a first amplified signal, and a second amplifier amplifying the first amplified signal to generate a second amplified signal. Further, the radio apparatus includes a first correcting unit correcting a direct current offset of the first amplifier, and a second correcting unit correcting a direct current offset of the second amplifier. The radio apparatus also includes a reference voltage source or reference current source supplying a reference voltage or reference current for referring a direct current offset to the first amplifier and the second amplifier, a gain controller controlling the amplification gain of the first amplifier; and a correction controller controlling the gain controller to set the amplification gain to maximum and controlling the first and second correcting units to perform correction of the second correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the second amplifier, and thereafter perform correction of the first correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the first amplifier.
摘要翻译： 提供能够在短时间内以高精度校正直流偏移的无线电装置。 根据实施例的无线电设备包括：放大输入到输入端的信号的第一放大器，其具有由可变电阻器确定的放大增益以产生第一放大信号;以及第二放大器，放大第一放大信号以产生第二放大信号。 此外，无线电设备包括校正第一放大器的直流偏移的第一校正单元和校正第二放大器的直流偏移的第二校正单元。 无线电设备还包括参考电压源或参考电流源，其提供用于将直流偏移引用到第一放大器和第二放大器的参考电压或参考电流，控制第一放大器的放大增益的增益控制器; 以及校正控制器，控制增益控制器将放大增益设定为最大，并且基于通过将参考电压或参考电流输入到输入端获得的第二放大信号来控制第一和第二校正单元执行第二校正单元的校正 终端，然后基于通过将参考电压或参考电流输入到第一放大器的输入端而获得的第二放大信号来执行第一校正单元的校正。
-
公开(公告)号：US20100203851A1
公开(公告)日：2010-08-12
申请号：US12553180
申请日：2009-09-03
IPC分类号： H04B1/02
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3252 , H03F1/34 , H03F3/19 , H03F3/24 , H03F2200/204 , H03F2200/336 , H03F2200/411 , H03F2200/451 , H04B2001/0433
摘要： A wireless transmission device includes an adding/subtracting unit configured to subtract a second signal and a third signal from a first signal to generate the second signal; a modulating unit configured to modulate the second signal to generate a fourth signal; a demodulating unit configured to demodulate the fourth signal to generate the third signal; and a transmitting unit configured to transmit the fourth signal.
摘要翻译： 无线传输装置包括：加法/减法单元，被配置为从第一信号中减去第二信号和第三信号以产生第二信号; 调制单元，被配置为调制所述第二信号以产生第四信号; 解调单元，被配置为对所述第四信号进行解调以产生所述第三信号; 以及发送单元，被配置为发送所述第四信号。
-
公开(公告)号：US20100225397A1
公开(公告)日：2010-09-09
申请号：US12558807
申请日：2009-09-14
IPC分类号： H03F3/26
CPC分类号： H03F3/602 , H03F3/26 , H03F2200/537 , H03F2200/541 , H03F2200/543
摘要： An amplifier includes: a substrate; first to fourth amplifying units arranged on the substrate and each having first and second terminals, and each amplifying first and second signals to generate first and second amplified signals; a first inductive line arranged on the substrate, connecting the first terminal of the first amplifying unit and the first terminal of the second amplifying unit, and having a linear portion and a bending portion; a second inductive line arranged on the substrate, connecting the second terminal of the second amplifying unit and the first terminal of the third amplifying unit, and having a linear portion and a bending portion; a third inductive line arranged on the substrate, connecting the second terminal of the third amplifying unit and the first terminal of the fourth amplifying unit, and having a linear portion and a bending portion; a fourth inductive line arranged on the substrate, connecting the second terminal of the fourth amplifying unit and the second terminal of the first amplifying unit, and having a linear portion and a bending portion; and a fifth inductive line which establishes magnetic field coupling with the first to fourth inductive lines, and has third and fourth terminals, combines the plurality of the first amplified signals amplified to output the first combined signal from the third terminal, and combines the plurality of the second amplified signals to output the second combined signal from the fourth terminal.
摘要翻译： 放大器包括：基板; 布置在基板上的第一至第四放大单元，每个具有第一和第二端子，并且每个放大第一和第二信号以产生第一和第二放大信号; 布置在所述基板上的第一感应线，连接所述第一放大单元的第一端子和所述第二放大单元的所述第一端子，并且具有直线部分和弯曲部分; 布置在基板上的第二感应线，连接第二放大单元的第二端子和第三放大单元的第一端子，并具有直线部分和弯曲部分; 布置在基板上的第三感应线，连接第三放大单元的第二端子和第四放大单元的第一端子，并具有直线部分和弯曲部分; 布置在基板上的第四感应线，连接第四放大单元的第二端子和第一放大单元的第二端子，并具有直线部分和弯曲部分; 以及第五感应线，其与第一至第四感应线建立磁场耦合，并且具有第三和第四端子，将被放大的多个第一放大信号组合以输出来自第三端子的第一组合信号，并将多个 第二放大信号以从第四终端输出第二组合信号。
-
公开(公告)号：US07876162B2
公开(公告)日：2011-01-25
申请号：US12558807
申请日：2009-09-14
IPC分类号： H03F3/14
CPC分类号： H03F3/602 , H03F3/26 , H03F2200/537 , H03F2200/541 , H03F2200/543
摘要： An amplifier includes: a substrate; first to fourth amplifying units arranged on the substrate and each having first and second terminals, and each amplifying first and second signals to generate first and second amplified signals; a first inductive line arranged on the substrate, connecting the first terminal of the first amplifying unit and the first terminal of the second amplifying unit, and having a linear portion and a bending portion; a second inductive line arranged on the substrate, connecting the second terminal of the second amplifying unit and the first terminal of the third amplifying unit, and having a linear portion and a bending portion; a third inductive line arranged on the substrate, connecting the second terminal of the third amplifying unit and the first terminal of the fourth amplifying unit, and having a linear portion and a bending portion; a fourth inductive line arranged on the substrate, connecting the second terminal of the fourth amplifying unit and the second terminal of the first amplifying unit, and having a linear portion and a bending portion; and a fifth inductive line which establishes magnetic field coupling with the first to fourth inductive lines, and has third and fourth terminals, combines the plurality of the first amplified signals amplified to output the first combined signal from the third terminal, and combines the plurality of the second amplified signals to output the second combined signal from the fourth terminal.
摘要翻译： 放大器包括：基板; 布置在基板上的第一至第四放大单元，每个具有第一和第二端子，并且每个放大第一和第二信号以产生第一和第二放大信号; 布置在所述基板上的第一感应线，连接所述第一放大单元的第一端子和所述第二放大单元的所述第一端子，并且具有直线部分和弯曲部分; 布置在基板上的第二感应线，连接第二放大单元的第二端子和第三放大单元的第一端子，并具有直线部分和弯曲部分; 布置在基板上的第三感应线，连接第三放大单元的第二端子和第四放大单元的第一端子，并具有直线部分和弯曲部分; 布置在基板上的第四感应线，连接第四放大单元的第二端子和第一放大单元的第二端子，并具有直线部分和弯曲部分; 以及第五感应线，其与第一至第四感应线建立磁场耦合，并且具有第三和第四端子，将被放大的多个第一放大信号组合以输出来自第三端子的第一组合信号，并将多个 第二放大信号以从第四终端输出第二组合信号。
-
公开(公告)号：US08451942B2
公开(公告)日：2013-05-28
申请号：US12957856
申请日：2010-12-01
IPC分类号： H04K1/02
CPC分类号： H04L27/366 , H03F1/34 , H03F2200/57 , H03G3/3042 , H04B17/21 , H04L27/362 , H04W52/52
摘要： In one embodiment, a wireless transmission apparatus is disclosed. The apparatus includes a generator unit, an amplitude adjuster unit, a phase adjuster unit, and a setting unit. The generator unit generates an amplitude control signal that minimizes an amplitude difference and a phase control signal that minimizes a phase difference in a state in which a power is set during an OFF period of a switch. The amplitude adjuster unit adjusts an amplitude of a feedback RF signal according to the amplitude control signal during an ON period of the switch. The phase adjuster unit adjusts a phase of a local signal according to the phase control signal during the ON period. The setting unit sets, for a Cartesian loop, a first loop gain when the switch is OFF, and a second loop gain higher than the first loop gain when the switch is turned from OFF to ON.
摘要翻译： 在一个实施例中，公开了一种无线传输装置。 该装置包括发电机单元，振幅调节单元，相位调整单元和设定单元。 发电机单元产生使振幅差最小化的幅度控制信号和在开关断开期间功率被设定的状态下的相位差最小化的相位控制信号。 幅度调整单元在开关的导通期间根据幅度控制信号来调整反馈RF信号的幅度。 相位调整单元根据ON期间的相位控制信号调整本地信号的相位。 设置单位为笛卡尔回路设置开关关闭时的第一个环路增益，当开关从OFF变为ON时，第二个环路增益高于第一个环路增益。
-
公开(公告)号：US20110116558A1
公开(公告)日：2011-05-19
申请号：US12957856
申请日：2010-12-01
IPC分类号： H04L27/00
CPC分类号： H04L27/366 , H03F1/34 , H03F2200/57 , H03G3/3042 , H04B17/21 , H04L27/362 , H04W52/52
摘要： In one embodiment, a wireless transmission apparatus is disclosed. The apparatus includes a generator unit, an amplitude adjuster unit, a phase adjuster unit, and a setting unit. The generator unit generates an amplitude control signal that minimizes an amplitude difference and a phase control signal that minimizes a phase difference in a state in which a power is set during an OFF period of a switch. The amplitude adjuster unit adjusts an amplitude of a feedback RF signal according to the amplitude control signal during an ON period of the switch. The phase adjuster unit adjusts a phase of a local signal according to the phase control signal during the ON period. The setting unit sets, for a Cartesian loop, a first loop gain when the switch is OFF, and a second loop gain higher than the first loop gain when the switch is turned from OFF to ON.
摘要翻译： 在一个实施例中，公开了一种无线传输装置。 该装置包括发电机单元，振幅调节单元，相位调整单元和设定单元。 发电机单元产生使振幅差最小化的幅度控制信号和在开关断开期间功率被设定的状态下的相位差最小化的相位控制信号。 幅度调整单元在开关的导通期间根据幅度控制信号来调整反馈RF信号的幅度。 相位调整单元根据ON期间的相位控制信号调整本地信号的相位。 设置单位为笛卡尔回路设置开关关闭时的第一个环路增益，当开关从OFF变为ON时，第二个环路增益高于第一个环路增益。
-
公开(公告)号：US09281830B2
公开(公告)日：2016-03-08
申请号：US13421391
申请日：2012-03-15
申请人： Shoji Otaka , Takafumi Yamaji , Tsutomu Sugawara , Yasuhiko Tanabe , Masahiro Hosoya , Hiroki Sakurai
发明人： Shoji Otaka , Takafumi Yamaji , Tsutomu Sugawara , Yasuhiko Tanabe , Masahiro Hosoya , Hiroki Sakurai
CPC分类号： H03L7/18 , H03L7/0802 , H04L27/38 , H04L27/3818 , H04W52/0229 , H04W52/0274 , Y02D70/142
摘要： A radio apparatus includes a first receiver that is a processing unit for amplifying and frequency converting a radio signal received via an antenna, thereby outputting an IF signal; a detector unit for detecting a preamble signal from the IF signal; a second receiver for amplifying and quadrature demodulating the radio signal, thereby generating an I-signal and a Q-signal; a demodulator unit for demodulating the I-signal and Q-signal to generate a data signal; and a control unit for halting the operation of the first receiver and further activating the second receiver when the detector unit detects the preamble signal and for activating the first receiver and halting the operation of the second receiver when the demodulator unit completes the demodulation of the I-signal and Q-signal.
摘要翻译： 无线电设备包括：第一接收机，其是用于放大和频率转换经由天线接收的无线电信号的处理单元，从而输出IF信号; 检测单元，用于检测来自IF信号的前置信号; 第二接收机，用于放大和正交解调无线电信号，由此产生I信号和Q信号; 解调器单元，用于解调I信号和Q信号以产生数据信号; 以及控制单元，用于当所述检测器单元检测到所述前导码信号并激活所述第一接收机并停止所述第二接收机的操作时，当所述解调器单元完成所述I的解调时，停止所述第一接收机的操作并进一步激活所述第二接收机 信号和Q信号。
-
公开(公告)号：US08958767B2
公开(公告)日：2015-02-17
申请号：US13422636
申请日：2012-03-16
申请人： Shoji Otaka , Takafumi Yamaji , Tsutomu Sugawara , Yasuhiko Tanabe , Masahiro Hosoya , Hiroki Sakurai
发明人： Shoji Otaka , Takafumi Yamaji , Tsutomu Sugawara , Yasuhiko Tanabe , Masahiro Hosoya , Hiroki Sakurai
CPC分类号： H04W52/0274 , H03L7/0802 , H03L7/1976 , H03L2207/50 , H04L25/0292 , H04L27/38 , H04L27/3818 , H04W52/0229 , Y02D70/142
摘要： A radio apparatus includes an antenna; an amplifier that amplifies a radio signal, received via the antenna; a first mixer that frequency converts the amplified radio signal to generate a first analog signal; a first A/D converter that converts the first analog signal to generate a first digital signal; a second mixer that frequency converts the amplified signal to generate a second analog signal; a second A/D converter means that converts the second analog signal to generate a second digital signal; a demodulator means that demodulates the first and second digital signals to generate a demodulated signal; a detector that detects a preamble from the first digital signal; and a control means that halts the second mixer and second A/D converter during the wait for the radio signal and that activates the second mixer and second A/D converter when the detector detects the preamble.
摘要翻译： 无线电设备包括天线; 放大器，放大经由天线接收的无线电信号; 第一混频器，其对放大的无线电信号进行频率转换以产生第一模拟信号; 第一A / D转换器，其转换第一模拟信号以产生第一数字信号; 第二混频器，其对放大的信号进行频率转换以产生第二模拟信号; 第二A / D转换器，用于转换第二模拟信号以产生第二数字信号; 解调器装置，解调第一和第二数字信号以产生解调信号; 检测器，其从所述第一数字信号检测前导码; 以及控制装置，其在等待无线电信号期间停止第二混频器和第二A / D转换器，并且当检测器检测到前导码时激活第二混频器和第二A / D转换器。
-
公开(公告)号：US20120214434A1
公开(公告)日：2012-08-23
申请号：US13421391
申请日：2012-03-15
申请人： Shoji OTAKA , Takafumi Yamaji , Tsutomu Sugawara , Yasuhiko Tanabe , Masahiro Hosoya , Hiroki Sakurai
发明人： Shoji OTAKA , Takafumi Yamaji , Tsutomu Sugawara , Yasuhiko Tanabe , Masahiro Hosoya , Hiroki Sakurai
CPC分类号： H03L7/18 , H03L7/0802 , H04L27/38 , H04L27/3818 , H04W52/0229 , H04W52/0274 , Y02D70/142
摘要： A radio apparatus includes a first receiver that is a processing unit for amplifying and frequency converting a radio signal received via an antenna, thereby outputting an IF signal; a detector unit for detecting a preamble signal from the IF signal; a second receiver for amplifying and quadrature demodulating the radio signal, thereby generating an I-signal and a Q-signal; a demodulator unit for demodulating the I-signal and Q-signal to generate a data signal; and a control unit for halting the operation of the first receiver and further activating the second receiver when the detector unit detects the preamble signal and for activating the first receiver and halting the operation of the second receiver when the demodulator unit completes the demodulation of the I-signal and Q-signal.
摘要翻译： 无线电设备包括：第一接收机，其是用于放大和频率转换经由天线接收的无线电信号的处理单元，从而输出IF信号; 检测单元，用于检测来自IF信号的前置信号; 第二接收机，用于放大和正交解调无线电信号，由此产生I信号和Q信号; 解调器单元，用于解调I信号和Q信号以产生数据信号; 以及控制单元，用于当所述检测器单元检测到所述前导信号并激活所述第一接收机并且当所述解调器单元完成所述I的解调时停止所述第二接收机的操作时，停止所述第一接收机的操作并进一步激活所述第二接收机 信号和Q信号。
-
-
-
-
-
-
-
-
-
搜索结果
68 条记录 (耗时 0.027 秒)
