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1. 发明专利

JPS5728405A Fm wave detector 失效
标题翻译： FM波检测器
公开(公告)号：JPS5728405A
公开(公告)日：1982-02-16
申请号：JP10251680
申请日：1980-07-28
申请人： Hitachi Ltd
发明人： SHIBUYA TOSHIFUMI
IPC分类号： H03D3/00 , H03D3/04
CPC分类号： H03D3/04
摘要： PURPOSE:To achieve high linearity and high S/N, by charging/discharging a given charge to a capacitor with a signal in FM modulation. CONSTITUTION:When a signal in frequency (f) is applied to a limiter 1, the output is a rectangular wave and applied to an amplifier 6. The noninverting and inverting output of the amplifier 6 are applied to switching elements SWs 8, 9, and when they are at high level, the SWs 8, 9 are turned on. When the SW8 is turned on, the SW9 is turned off and a capacitor 10 is charged. Then, when the SW9 is turned on, the SW8 is turned off, and the charge in the capacitor 10 is discharged to an input resistor 13. This current flows to a feedback resistor 12. Since the gain of the amplifier 11 is greater, the output VAMP of the amplifier 11 is as expressed in equation (9), and the average output VOUT is obtained in the relation of equation (11) by applying this output to a low-pass filter 5. That is, the (f) and the VOUT have a relation of proportion.
摘要翻译：目的：为了实现高线性度和高S / N，通过用FM调制信号将给定电荷充电/放电到电容器。构成：当频率（f）中的信号施加到限幅器1时，输出是矩形波并施加到放大器6.放大器6的同相和反相输出施加到开关元件SW 8,9 当它们处于高电平时，SW 8,8被接通。当SW8接通时，SW9断开，电容器10被充电。然后，当SW9导通时，SW8断开，电容器10中的电荷被放电到输入电阻器13.该电流流向反馈电阻器12.由于放大器11的增益较大，放大器11的输出VAMP如等式（9）所示，并且通过将该输出施加到低通滤波器5，通过等式（11）的关系获得平均输出VOUT。也就是说，（f）和 VOUT有比例关系。

2. 发明专利

JP3882781B2 Demodulation method and demodulator 有权
公开(公告)号：JP3882781B2
公开(公告)日：2007-02-21
申请号：JP2003143777
申请日：2003-05-21
申请人：株式会社デンソー
发明人：充高橋 , 久志高須
IPC分类号： H04L27/156 , H03D3/04
CPC分类号： H04L27/1563 , H03D3/04

3. 发明专利

JPS59111408A Fm signal demodulation circuit 失效
标题翻译： FM信号解调电路
公开(公告)号：JPS59111408A
公开(公告)日：1984-06-27
申请号：JP22084882
申请日：1982-12-16
申请人： Pioneer Electronic Corp
发明人： KURODA KAZUO
IPC分类号： H03D3/00 , H03D3/04 , H03D3/24
CPC分类号： H03D3/24 , H03D3/04
摘要： PURPOSE: To eliminate unnatural feeling of listening by sampling and holding a periodic signal having an electric value in response to the period of an FM signal at each period and taking a reciprocal of said electric value as a demodulating signal so as to apply the compensation at dropout for a short period.
CONSTITUTION: When the FM signal is inputted, a level detecting circuit 16 generates a level detecting pulse as an output voltage of a triangle wave generating circuit 9 is increased. Thus, a sampling pulse synchronized with a trigger pulse from an inverter 19 is applied to a switch 11 and an output is produced from a sample-and-hold circuit 10. When a dropout is detected at a dropout detecting circuit 17, since no trigger pulse is generated, the sample-and-hold circuit 10 outputs the preceding sample value continuously. The demodulating signal passes through a reciprocal amplifier 15. Then, the compensation at the generation of dropout is applied for a short period, allowing to prevent unnatural feeling of listening.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过采样和保持响应于每个周期的FM信号的周期的具有电值的周期性信号来消除听觉的不自然的感觉，并将所述电气值的倒数作为解调信号，以便将补偿应用于辍学一段时间。构成：当FM信号被输入时，电平检测电路16随着三角波产生电路9的输出电压的增加而产生电平检测脉冲。因此，与来自逆变器19的触发脉冲同步的采样脉冲被施加到开关11，并且从采样保持电路10产生输出。当在压差检测电路17处检测到压差时，由于没有触发产生脉冲，采样保持电路10连续地输出先前的采样值。解调信号通过倒数放大器15.然后，在产生丢失时的补偿被施加很短的时间，从而可以防止听觉不自然的感觉。

4. 发明专利

JP4783732B2 One or inductive powered power supply system having a controllable load on multiple independent 有权
公开(公告)号：JP4783732B2
公开(公告)日：2011-09-28
申请号：JP2006527936
申请日：2004-09-29
申请人：オークランドユニサービシズリミテッドAuckland Uniservices Limited
发明人：ボーイズ，ジョン，タルボット
IPC分类号： H02J17/00 , G08G1/07 , H02J5/00
CPC分类号： H03D3/04 , H02J5/005 , H02J50/12 , H02J50/40
摘要： The present invention provides a system for controlling one or more operating unites in an inductive power transfer (IPT) system. Each operating unit includes a pick-up coil that takes power from a primary conductor or track over an air gap. The operating unit is controlled by frequency modulating the primary conductor power supply to send a control instruction which is decoded by the operating unit. The instruction is decoded by generating a signal using a local oscillator in the operating unit and using the signal to detect changes in the frequency of the current in the primary conductor. Such a system can be used, for example, to control inductively powered road-studs that include a light source for controlling traffic on a roadway. A narrow band modulated data transmission system and method for controlling an operating unit are also provided.

5. 发明专利

JP2004129207A Demodulation method and demodulator 有权
公开(公告)号：JP2004129207A
公开(公告)日：2004-04-22
申请号：JP2003143777
申请日：2003-05-21
申请人： Denso Corp , 株式会社デンソー
发明人： TAKASU HISASHI , TAKAHASHI MITSURU
IPC分类号： H03D3/04 , H04L27/156
CPC分类号： H04L27/1563 , H03D3/04
摘要： PROBLEM TO BE SOLVED: To provide a demodulation method and a demodulator which does not require an analog circuit so that a structure of a FSK receiver can be simplified. SOLUTION: Four counters C1 to C4 forming a count section 12 count the numbers of waves of a modulated signal at every expiration of a bit time width T at individual timings, which differ by T/4 from each other. Based on the count values, a first average value AV0 of the count values larger than a decision threshold (="9" in the figure), and a second average value AV1 of the count values smaller than the decision threshold are calculated, and a difference of the average values is designated as a determination value DAV (DAV=AV0-AV1). The counter Ci with the largest determination value DAV is specified as a counter operating at a synchronous timing with bit borders of the digital signal to be demodulated. The count values from the specified counter Ci are compared to the decision threshold to determine the signal level, and the digital signal is thereby restored. COPYRIGHT: (C)2004,JPO

6. 发明专利

JPS5923905A Demodulator 失效
标题翻译：解调器
公开(公告)号：JPS5923905A
公开(公告)日：1984-02-07
申请号：JP12681183
申请日：1983-07-11
申请人： Westinghouse Electric Corp
发明人： SHIYAN TSUI SAN
IPC分类号： H02H3/28 , H03D3/00 , H03D3/04 , H03K9/04 , H03K9/06 , H03K9/08
CPC分类号： H03K9/04 , H03D3/04 , H03K9/06 , H03K9/08

7. 发明专利

JP3674166B2 Broadcast wave signal receiving apparatus 失效
公开(公告)号：JP3674166B2
公开(公告)日：2005-07-20
申请号：JP19095196
申请日：1996-07-19
申请人：ソニー株式会社
发明人：均富山
IPC分类号： H03D3/00 , H03D3/04 , H03D5/00 , H03G11/06 , H03J1/00 , H03K9/06 , H04B1/16 , H04B1/26 , H04B1/40 , H04L27/06 , H04L27/14 , H04L27/156
CPC分类号： H04B1/0057 , H03D3/04 , H03D5/00 , H03J1/0083 , H04B1/006 , H04B1/0092 , H04B1/26 , H04B1/406 , H04L27/06 , H04L27/14 , H04L27/156

8. 发明专利

JP3524947B2 Direct conversion receiver 失效
公开(公告)号：JP3524947B2
公开(公告)日：2004-05-10
申请号：JP29330993
申请日：1993-11-24
申请人：コーニンクレッカフィリップスエレクトロニクスエヌヴィ
发明人：モヒンドラリシ
IPC分类号： H04L27/14 , H03D3/04 , H03D7/16 , H03J7/02 , H04B1/30
CPC分类号： H04B1/30 , H03D3/04 , H03D7/165 , H03J7/02

9. 发明专利

JP3473165B2 Frequency over voltage conversion device 失效
公开(公告)号：JP3473165B2
公开(公告)日：2003-12-02
申请号：JP9521895
申请日：1995-04-20
申请人：株式会社デンソー
发明人：卓哉原田 , 真清堀江
IPC分类号： G01P3/481 , G01P3/48 , G01P3/489 , G01R23/06 , G01R23/15 , H03D3/04 , H03K9/06
CPC分类号： G01P3/4805 , G01R23/06 , H03D3/04 , H03K9/06

10. 发明专利

JPS58178608A Demodulator for fm signal 失效
标题翻译：调频信号调制解调器
公开(公告)号：JPS58178608A
公开(公告)日：1983-10-19
申请号：JP6062482
申请日：1982-04-12
申请人： Nec Corp
发明人： NAKAMURA SUSUMU
IPC分类号： H03D3/00 , H03D3/04
CPC分类号： H03D3/04
摘要： PURPOSE:To simplify the complete interruption of a modulated output signal and to omit a switch by inhibiting the generation of a pulse signal from a monostable multivibrator at the reduction of the input signal level of an FM signal demodulator. CONSTITUTION:A monostable multivibrator provided with a clear terminal e.g. which can inhibit the generation of an output signal by a control signal is used as a monostable multivibrator 3' to generate a pulse signal with a fixed amplitude by a trigger signal. An alarm detector 7 supervises an input signal level, and when the reduction of the input signal level is detected, supplies a control signal to the clear terminal of the monostable multivibrator 3' to inhibit the generation of a pulse signal from the monostable multivibrator 3'.
摘要翻译：目的：为了简化调制输出信号的完全中断，并通过在降低FM信号解调器的输入信号电平的同时抑制来自单稳态多谐振荡器的脉冲信号的产生来省略开关。构成：具有清洁端子的单稳态多谐振荡器，例如可以通过控制信号抑制输出信号的产生被用作单稳态多谐振荡器3'以通过触发信号产生具有固定振幅的脉冲信号。警报检测器7监视输入信号电平，并且当检测到输入信号电平的降低时，向单稳态多谐振荡器3'的清零端提供控制信号，以禁止来自单稳态多谐振荡器3'的脉冲信号的产生，。

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