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1. 发明专利

JP2016217713A 回路装置、物理量検出装置、電子機器及び移動体有权
标题翻译：电路装置，物理量检测装置，电子设备及移动
公开(公告)号：JP2016217713A
公开(公告)日：2016-12-22
申请号：JP2015098792
申请日：2015-05-14
申请人：セイコーエプソン株式会社
发明人：青山孝志 , 瀬尾顕太郎
IPC分类号： G01C19/5776 , H03D5/00 , G01C19/5614
CPC分类号： G08C15/06 , G08C25/00 , H04J3/0658 , H04J3/14 , G08C2200/00
摘要：【課題】より適切な故障検出を実現できる回路装置、物理量検出装置、電子機器及び移動体等の提供。【解決手段】回路装置は、入力信号から物理量信号を同期検波して出力する同期検波回路81と、フィルター部90を含み、同期検波回路81は、第1、第2の検波回路82、84を含み、フィルター部90は第1、第2のフィルター92、94を含む。第1の検波回路82は第1のクロック信号CK0に基づいて入力信号から物理量信号を同期検波して出力し、第2の検波回路84は第2のクロック信号CK90に基づいて入力信号から不要信号を同期検波して出力する。第1のモードでは、第1の検波回路82からの物理量信号が第1のフィルター92に入力され、第2の検波回路84からの不要信号が第2のフィルター94に入力される。第2のモードでは、第1の検波回路82からの物理量信号が第1のフィルター92及び第2のフィルター94に入力される。【選択図】図1
摘要翻译：更电路装置能够实现适当的故障检测时，物理量检测装置的，在电子装置或类似物和移动提供。一种电路装置，包括：用于同步检测，并输出从输入信号的物理量信号的同步检测电路81，包括过滤器单元90，同步检测电路81中，第一，第二检测电路82 其中，过滤器单元90包括第一，第二过滤器92，94。第一检测电路82同步地检测并输出从基于第一时钟信号CK0的输入信号的物理量信号，第二检测电路84是基于所述第二时钟信号CK90的输入信号的不需要的信号同步检测和输出。在第一模式中，从第一检测电路82的物理量信号被输入到第一滤波器92，从所述第二检测电路84不必要信号被输入到所述第二滤波器94。在第二模式中，从第一检测电路82的物理量信号被输入到第一滤波器92和第二滤波器94。点域1

2. 发明专利

JP3397792B2 失效
公开(公告)号：JP3397792B2
公开(公告)日：2003-04-21
申请号：JP51390394
申请日：1993-11-15
IPC分类号： H03D5/00 , H03D1/22 , H04B1/16 , H04B1/26 , H04H1/00 , H04H20/48 , H04H5/00

3. 发明专利

JP2001223532A RADIO RECEIVER 失效
公开(公告)号：JP2001223532A
公开(公告)日：2001-08-17
申请号：JP2000032794
申请日：2000-02-04
申请人： HITACHI INT ELECTRIC INC
发明人： IDE TERUJI
IPC分类号： H03D5/00 , H04L27/00
摘要： PROBLEM TO BE SOLVED: To provide a demodulation system which solves the problems of a conventional technique and can cope even with demodulation processing of different modulation system and band. SOLUTION: This demodulation processing system is has a means which calculates a sampling frequency according to the center frequencies and the bandwidth information of HF, VHF and UHF band received signals, controls a PLL oscillator 6 or the oscillator 6 and the number of frequency divisions of a variable frequency divider performing frequency division of an output of the oscillator and converts an analog signal into a digital signal according to a sampling frequency that is lower than a double highest frequency inputted to an A/D converter 5 by controlling the sampling frequency of the converter 5, and a means which calculates a carrier frequency that is lower than the center frequency of a signal inputted to the converter 5 according to the sampling frequency and performs demodulation processing 13 by the carrier of digital signal processing subjected to frequency conversion.

4. 发明专利

JP3110945B2 失效
公开(公告)号：JP3110945B2
公开(公告)日：2000-11-20
申请号：JP14975394
申请日：1994-06-30
IPC分类号： H04N9/66 , H03D5/00 , H04B1/16

5. 发明专利

JP2000134271A DEMODULATOR AND DEMODULATION METHOD 失效
公开(公告)号：JP2000134271A
公开(公告)日：2000-05-12
申请号：JP30542998
申请日：1998-10-27
申请人： TOSHIBA TEC KK
发明人： SUGIYAMA TOMONORI
IPC分类号： H03D5/00 , H04B7/26 , H04L27/14 , H04L27/22
摘要： PROBLEM TO BE SOLVED: To judge a modulation system on a reception side, to demodulate data corresponding to the judgement and to simplify constitution by limiting a demodulation part to use to one piece. SOLUTION: This demodulator is provided with a synchronization detector 24 for detecting common-mode components and the synchronization detector 25 for detecting orthogonal components by using the reference carrier waves of a clock synchronization/reference carrier wave reproduction part 26 from reception signals, an amplitude level detection part 27 for detecting an amplitude level at the point of time of indicating a modulation symbol by the clock of the reproduction part and detecting the amplitude level between the modulation symbols, ternary-binary conversion parts 28 and 29 for converting the synchronization detected level signals of three stages to 2-bit data and a reception buffer 31 for gathering the data from the respective conversion parts, turning them to 4 bits, comparing the amplitude level information between the modulation symbols of the reception signals with the amplitude level information at the time of indicating the modulation symbol stored in a memory 30, judging the modulation system and demodulating the data.

6. 发明专利

JPH10327020A RECEIVER 失效
公开(公告)号：JPH10327020A
公开(公告)日：1998-12-08
申请号：JP14855497
申请日：1997-05-22
申请人： KENWOOD CORP
发明人： KISHI TAKAHIKO
IPC分类号： H03D1/24 , H03D3/00 , H03D5/00 , H04B1/26
摘要： PROBLEM TO BE SOLVED: To provide a receiver with a simplified configuration. SOLUTION: In the case that a reception electric field strength is excellent, a switch (SW) 1 is thrown to a position (a) and a SW 2 is thrown to a position (b). A reception means 8A receives an RZ-SSB modulated wave with a desired user frequency, converts the wave into an intermediate frequency signal, which is outputted. The intermediate frequency signal is A/D-converted and given to an FM detector circuit 10 that conduct TAN- detection providing a high AM suppressing degree, where the signal is FM- detected not through a limiter. A detected output from the FM detector circuit 10 is given to an equalizer means 22, where distortion is eliminated, the result is D/A- converted, amplified by an AF amplifier 23, and the amplified signal is outputted form a speaker 24. As a result, the radio wave is received with immunity to fading. In the case that the received electric field strength is deteriorated, the SW 1 is thrown to a position (b) and the SW 2 is thrown to a position (c). An automatic notch circuit 41 of an AM detection means 40 suppresses a carrier component of the intermediate frequency signal of the RZ-SSB modulation wave, and a product detection circuit 42 applies product detection to the resulting signal. The signal is D/A-converted, amplified by an AF amplifier 23 and outputted from the speaker 24. As a result, the radio wave is received with a high S/N.

7. 发明专利

JP2808954B2 失效
公开(公告)号：JP2808954B2
公开(公告)日：1998-10-08
申请号：JP32399791
申请日：1991-11-13
申请人： KOKUSAI DENSHIN DENWA KK
发明人： TAKEUCHI YOSHIO , KOBAYASHI HIDEO
IPC分类号： H03D5/00 , G01R23/16 , H03L7/00 , H04L27/22

8. 发明专利

JPH09214252A AM AND FM TUNER USING DIRECT DETECTION 失效
公开(公告)号：JPH09214252A
公开(公告)日：1997-08-15
申请号：JP1771796
申请日：1996-02-02
申请人： FUJITSU TEN LTD
发明人： SASAKI KAZUTOSHI
IPC分类号： H03D1/00 , H03D3/00 , H03D5/00 , H04H1/00 , H04H40/45 , H04H5/00
摘要： PROBLEM TO BE SOLVED: To suppress the unbalance of FM and AM demodulation processing quantity of DSP and to simplify a whole structure by converting a signal into an FM stereo composite signal based on a signal restored with AM stereo demodulation and demodulating it through an FM stereo demodulation. SOLUTION: An adder 411 inputting a main channel L+R, a multiplier 412 inputting an auxiliary channel L-R and adding the output with the main channel L+R and a multiplier 413 for multiplying the auxiliary channel L-R inputted to the multiplier 412 by the oscillation output of a necessary frequency are provided. A matrix 40 converts again the left and right signals L and R restored in an AM stereo demodulation part 33 into the main channel signal L+R and the auxiliary channel signal L-R. The FM stereo demodulation part 41 FM- modulates the signal converted in the matrix 40, outputs the FM modulation signal to a switch 34 and it is alternatively selected with the output of an FM detector 31.

9. 发明专利

JPH09113594A BEACON RECEIVER 失效
公开(公告)号：JPH09113594A
公开(公告)日：1997-05-02
申请号：JP26847195
申请日：1995-10-17
申请人： SHARP KK
发明人： OKABE KAORU
IPC分类号： G01S1/68 , H03D5/00
摘要： PROBLEM TO BE SOLVED: To provide a beacon receiver for surely performing AM demodulation irrespective of the receiving strength of an FM-AM composite modulation wave transmitted from a road station. SOLUTION: A beacon receiver 1 is provided with an FM demodulation system composed of a limiter amplifier 21 and a frequency detector 22 and two AM demodulation systems. A first AM demodulation system is composed of the limiter amplifier 21 and a DC prevention circuit 31 and a weak composite modulation wave is AM demodulated based on a RSSI signal produced by the limiter amplifier 21. A second AM demodulation system is composed of a diode flow rectifying type amplitude detector 33 and a strong composite modulation wave is AM demodulated by envelope detection. An AM demodulation signal is obtained by adding these outputs to an adder 34 and its phase is compared with that of an FM demodulation signal by a phase determination circuit 44. In order to acquire synchronism between FM demodulation and AM demodulation and between the two AM demodulation systems, delay circuits 23 and 32 are provided.

10. 发明专利

JPH08511135A 失效
公开(公告)号：JPH08511135A
公开(公告)日：1996-11-19
申请号：JP50125095
申请日：1994-05-25
IPC分类号： H03D1/22 , H03D3/02 , H03D3/24 , H03D5/00 , H03D7/00 , H03J1/00 , H04N5/44 , H04N5/455 , H04N7/20

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