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1. 发明专利

JP2014120790A Pulse modulation circuit 审中-公开
标题翻译：脉冲调制电路
公开(公告)号：JP2014120790A
公开(公告)日：2014-06-30
申请号：JP2012272219
申请日：2012-12-13
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUZUKI YOSHIHIRO
IPC分类号： H03K7/02 , G01S7/282 , H03C5/00 , H03D7/00
摘要： PROBLEM TO BE SOLVED: To provide a pulse modulation circuit comprising an existing circuit which implements a compact circuit comprising a reduced number of elements by dispensing with a dedicated circuit provided for the addition of the function of a phase modulation circuit.SOLUTION: The pulse modulation circuit includes: a switch 1 for pulse-modulating a high frequency input signal to a local oscillation wave according to a control input signal for on/off switching; a harmonic mixer 2 for frequency-mixing the local oscillation wave signal with an intermediate wave signal to output a high frequency modulation signal; a pulse signal generator 3 for generating a pulse signal modulating with positive and negative voltage amplitudes and inputting the generated pulse signal as the intermediate wave signal into the harmonic mixer 2; and a logic transformation circuit 9 for inputting a pulse signal modulating with an amplitude obtained by multiplying an absolute voltage of the pulse signal generated by the pulse signal generator 3 by a predetermined coefficient, as the control input signal into the switch 1.
摘要翻译：要解决的问题：提供一种包括现有电路的脉冲调制电路，该电路通过分配专用电路来实现包含少量元件的紧凑电路，该专用电路用于增加相位调制电路的功能。解决方案：脉冲调制电路包括：开关1，用于根据用于开/关切换的控制输入信号将高频输入信号脉冲调制成本地振荡波; 谐波混频器2，用于对具有中间波信号的本地振荡波信号进行混频以输出高频调制信号; 脉冲信号发生器3，用于产生用正和负电压幅度调制的脉冲信号，并将产生的脉冲信号作为中间波信号输入到谐波混频器2中; 以及逻辑变换电路9，用于将通过将由脉冲信号发生器3产生的脉冲信号的绝对电压乘以预定系数获得的振幅的脉冲信号调制作为控制输入信号输入到开关1中。

2. 发明专利

JP2012004699A Polar modulator 审中-公开
标题翻译：极性调制器
公开(公告)号：JP2012004699A
公开(公告)日：2012-01-05
申请号：JP2010135871
申请日：2010-06-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKAHASHI TAKANORI , TADOKORO TOMOHIRO , SHIMOZAWA MITSUHIRO
IPC分类号： H04L27/36 , H03C5/00 , H03F1/06 , H04B1/04
摘要： PROBLEM TO BE SOLVED: To provide a polar modulator in which an alias caused by a modulation sampling frequency is suppressed, without increase in a circuit scale due to a voltage controlled oscillator and limitation of a frequency band in the polar modulator performing a digital phase control by using a direct digital synthesizer.SOLUTION: A polar modulator includes: a modulation wave generating unit 10 that generates a carrier frequency, a phase, and an amplitude component of a modulation wave; a DDS 20 with a built-in band variable digital BPF suppressing an alias generated depending on a sampling frequency of the modulation wave generating unit, that modulates a phase of a carrier signal; a digital low pass filter (LPF) 50 suppressing the alias and a digital/analog converter (DAC) 60 that generate the amplitude component; and a multiplier 40 that synthesizes a phase component and the amplitude component through LPFs 30 and 70 each removing the alias caused by the sampling frequency of a DAC of each signal. The polar modulator which has high flexibility and is in a small size is thereby provided.
摘要翻译：要解决的问题：提供抑制由调制采样频率引起的别名的极性调制器，而不会由于压控振荡器而导致电路规模增加，并且极坐标调制器中的频带的限制通过使用直接数字合成器进行数字相位控制。解决方案：极性调制器包括：调制波产生单元10，其产生调制波的载波频率，相位和振幅分量; 具有内置频带可变数字BPF的DDS 20，其抑制根据调制波生成单元的采样频率产生的别名，调制载波信号的相位; 抑制别名的数字低通滤波器（LPF）50和产生振幅分量的数/模转换器（DAC）60; 以及乘法器40，其通过LPF 30和70合成相位分量和振幅分量，每个除去由每个信号的DAC的采样频率引起的别名。由此提供了具有高柔性并且尺寸小的极性调制器。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP4595848B2 Signal generation circuit 有权
公开(公告)号：JP4595848B2
公开(公告)日：2010-12-08
申请号：JP2006075167
申请日：2006-03-17
申请人：富士電機ホールディングス株式会社
发明人：史郎近藤 , 武治郡
IPC分类号： H04L27/36 , H03C5/00

5. 发明专利

JP4536468B2 E-class amplifier, and eer modulation amplifying device 有权
公开(公告)号：JP4536468B2
公开(公告)日：2010-09-01
申请号：JP2004274138
申请日：2004-09-21
申请人：パナソニック株式会社
发明人：和弘内山 , 晋司大川
IPC分类号： H03F3/217 , H03C5/00

6. 发明专利

JP4469347B2 Polar modulator 有权
标题翻译：空值
公开(公告)号：JP4469347B2
公开(公告)日：2010-05-26
申请号：JP2006053912
申请日：2006-02-28
申请人：パナソニック株式会社
发明人：真木中村 , 石田　　薫
IPC分类号： H03C1/00 , H03C5/00 , H04L27/36
CPC分类号： H03F3/189 , H03C5/00 , H03F3/24 , H03F2200/324 , H03F2200/504 , H04L27/361

7. 发明专利

JP4409743B2 Wireless communication device and wireless communication system 有权
公开(公告)号：JP4409743B2
公开(公告)日：2010-02-03
申请号：JP2000320627
申请日：2000-10-20
申请人：パナソニック株式会社
发明人：克明安倍 , 雅之折橋 , 豊村上 , 昭彦松岡 , 真一郎高林
IPC分类号： H03C5/00 , H04L27/34 , H04B7/26 , H04J3/00 , H04J11/00 , H04L1/00 , H04L27/18 , H04L27/26
CPC分类号： H04L27/26 , H04L1/0025 , H04L27/34

8. 发明专利

JP4364175B2 Multiplier and a wireless communication apparatus using the same 有权
公开(公告)号：JP4364175B2
公开(公告)日：2009-11-11
申请号：JP2005222770
申请日：2005-08-01
申请人：株式会社東芝
发明人：英徳大國 , 隆文山路
IPC分类号： H03C5/00 , H04B1/04 , H04B1/30 , H04L27/36
CPC分类号： H04B1/30

9. 发明专利

JP2009159343A Communication device 审中-公开
标题翻译：通信设备
公开(公告)号：JP2009159343A
公开(公告)日：2009-07-16
申请号：JP2007335545
申请日：2007-12-27
申请人： Advanced Telecommunication Research Institute International , 株式会社国際電気通信基礎技術研究所
发明人： KODERA TOSHIRO , TAROMARU MAKOTO
IPC分类号： H04B1/04 , H03C1/00 , H03C5/00
摘要： PROBLEM TO BE SOLVED: To provide a communication device capable of reducing output power by suppressing reduction in power addition efficiency. SOLUTION: A base band signal generator 1 provides a modulation output to be transmitted. A fixed amplitude phase modulator 2 generates a fixed amplitude high frequency signal whose amplitude is fixed based on the modulation output. An amplitude signal generation means 7A generates an amplitude signal for reducing a modulation degree in pulse width modulation in an area whose modulation error is not more than a modulation error upper limit value. A pulse width modulator 8 generates a logical pulse signal having an ON period rate proportional to the amplitude of the amplitude signal and outputs the logical pulse signal to a switching means 5. The switching means 5 generates a burst signal by making the fixed amplitude high frequency signal intermittent by the logical pulse signal, amplifies the generated burst signal and outputs the amplified signal to a band-pass filter 6. The band-pass filter 6 filters the burst signal and outputs a transmission output. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够通过抑制功率增加效率的降低来降低输出功率的通信装置。解决方案：基带信号发生器1提供待传输的调制输出。固定幅度相位调制器2基于调制输出产生幅度固定的固定幅度高频信号。幅度信号发生装置7A产生用于降低调制误差不大于调制误差上限值的区域中的脉宽调制调制度的振幅信号。脉冲宽度调制器8产生具有与振幅信号的幅度成比例的ON周期速率的逻辑脉冲信号，并将逻辑脉冲信号输出到切换装置5.切换装置5通过使固定振幅高频通过逻辑脉冲信号间歇的信号，放大所产生的脉冲串信号并将放大的信号输出到带通滤波器6.带通滤波器6对突发信号进行滤波并输出发送输出。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP4255498B2 Oscillation circuit 有权
公开(公告)号：JP4255498B2
公开(公告)日：2009-04-15
申请号：JP2007041546
申请日：2007-02-22
申请人：山辺宗雄
发明人：彰滝沢
IPC分类号： H03B5/32 , H03B5/12 , H03C1/42 , H03C5/00

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