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61. 发明专利

JPS54123979A FREQUENCY DETECTING CIRCUIT 失效
公开(公告)号：JPS54123979A
公开(公告)日：1979-09-26
申请号：JP3129878
申请日：1978-03-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： HARA KEN
IPC分类号： G01R23/08 , G01R23/02
摘要： PURPOSE:To enable input frequencies to be automatically detected by controlling a frequency setting means by the output of a counter circuit in a facsimile. CONSTITUTION:An FF 21 and a counter circuit 25 are set by a set pulse 22. This causes the S1 of a multiplexer 26 to go ON to ground R1 of a resistance network 27, then the center frequency of a BPF 12 becomes f1. When the input signal 11 of a frequency fm is applied, a voltage comparator 18 does not operate and therefore the low frequency signal 24 passes through a gate 23 and advances the count output of the circuit 25 by 1, then the S2 of the circuit 26 goes ON and the S1 goes OFF to ground the resistance R2. The center frequency of a BPF 12 then becomes f2. From this point on, when the resistance Rm is grounded in a similar manner, the center frequency of the BPF 12 becomes fm and by the output thereof the FF 21 is reset and the gate 23 is closed, thus from the count output of the circuit 25 the input signal frequency may be known.

62. 发明专利

JPS53136873A DIGITAL COUNT GENERATOR FOR INDICATING AVERAGE VALUE OF VARIABLE FREQUENCY 失效
公开(公告)号：JPS53136873A
公开(公告)日：1978-11-29
申请号：JP2170478
申请日：1978-02-28
申请人： LUCAS INDUSTRIES LTD
发明人： JIEIMUZU MAIKERU SARUTO
IPC分类号： F02P5/15 , G01D1/02 , G01L23/08 , G01L23/20 , G01R23/02 , G01R23/08 , G01R23/10

63. 发明专利

JPS5379579A FREQUENCY DETECTOR 失效
公开(公告)号：JPS5379579A
公开(公告)日：1978-07-14
申请号：JP15416976
申请日：1976-12-23
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： MITSUGI TAKUMI
IPC分类号： G01R23/08 , G01R23/02
摘要： PURPOSE:To prevent chuttering and bouncing of a relay by detecting the instantaneous value product level of a.c. inputs passing through a BF filter and a LP or HP filter.

67. 发明专利

DE102014010464A1 Messverfahren und Messvorrichtung 未知
公开(公告)号：DE102014010464A1
公开(公告)日：2015-02-12
申请号：DE102014010464
申请日：2014-07-15
申请人： GIESECKE & DEVRIENT GMBH
发明人： BALDISCHWEILER MICHAEL , AURACHER ULRICH , FINKENZELLER KLAUS
IPC分类号： G01R23/00 , G01R23/07 , G01R23/08 , G01R31/315 , H04B1/59 , H04B5/00 , H04B17/00
摘要： Verfahren zum Messen einer Eigenschaft eines zur kontaktlosen Datenkommunikation vorgesehenen Schwingkreises mit einer Messvorrichtung. Das Verfahren umfasst die Schritte des Anordnen (S1) des Schwingkreises in der Messvorrichtung, des Anregen (S4) des Schwingkreises durch die Messvorrichtung mittels eines Energiepulses, des Erfassen (S5) einer abklingenden Schwingung des Schwingkreises in Antwort auf die Anregung durch den Energiepuls mit der Messvorrichtung, und des Auswerten (S6) der erfassten Schwingung hinsichtlich der Eigenschaft des Schwingkreises. Vorliegend wird in dem Schritt des Anordnen (S1) der Schwingkreis auf einer Auflagefläche der Messvorrichtung planar angeordnet und ein luftgefüllter Raum mit einem vorbestimmten Minimalvolumen auf einer von einem Antennenträger der Messvorrichtung abgewandten Seite des Schwingkreises bereitgestellt (S2).

68. 发明专利

DE102006038626A1 未知
公开(公告)号：DE102006038626A1
公开(公告)日：2008-02-28
申请号：DE102006038626
申请日：2006-08-17
申请人： RHEINMETALL WAFFE MUNITION
发明人： JUNG MARKUS , WOLLMANN GERD
IPC分类号： F41H11/12 , G01R23/08 , G01S7/41 , G01S13/74 , H03K3/45
摘要： In a first step, it is proposed that tunable transmitters and detectors (receivers) be included in a detection system and that a narrowband, preferably variable frequency signal be used in order to determine the frequencies for optimum injection into the electronics of a target. When the detection system identifies these frequencies, destruction can be initiated in the second step of the invention for a transmitter or receiver which is communicating with the target. For this purpose, once the optimum frequencies have been determined, a high-power signal is transmitted into the local area of the target at the specific/determined frequency. The evaluation unit, which is integrated in the detection system, controls the transmission frequencies, evaluates the harmonic signals, selects the optimum frequencies for an attack, and controls and checks the attack process.

69. 发明专利

CA2586103A1 COMMUNICATING WITH AN IMPLANTED WIRELESS SENSOR 未知
公开(公告)号：CA2586103A1
公开(公告)日：2006-05-11
申请号：CA2586103
申请日：2005-10-04
申请人： CARDIOMEMS INC
发明人： PYLE WILTON , JOY JAMES , ALLEN MARK , ELLIS MICHAEL , KROH JASON
IPC分类号： G01R23/00 , G01D1/14 , G01R23/08 , G01R23/12 , G01R23/175 , G01R25/00 , H01Q7/00 , H03L7/00 , H04B15/00
摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.

70. 发明专利

IT1092899B 未知
公开(公告)号：IT1092899B
公开(公告)日：1985-07-12
申请号：IT2078678
申请日：1978-03-01
申请人： LUCAS INDUSTRIES LTD
IPC分类号： F02P5/15 , G01D1/02 , G01L23/08 , G01L23/20 , G01R23/02 , G01R23/08 , G01R23/10 , H03K

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