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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	Digital signal synthesizer and the calibration signal generator	JP24726288	1988-09-30	JPH0779210B2	1995-08-23	ジョン・ジェー・シアーデイ; マイク・アール・コールマン

122	Digital amplitude modulation device	JP14647989	1989-06-08	JPH0648767B2	1994-06-22	孝彦岸

123	JPH0462605B2 -	JP5023886	1986-03-07	JPH0462605B2	1992-10-07	JON JEI SHIAADEI

124	JPH0462203B2 -	JP5246784	1984-03-21	JPH0462203B2	1992-10-05	HERUMAN BETSUTSURU; YOOZEFU AA NOSEKU

125	JPH0435922B2 -	JP18071381	1981-11-11	JPH0435922B2	1992-06-12	ARU KOBARITSUKU; RORII HATSUSAN

126	Digital amplitude modulator	JP14647989	1989-06-08	JPH0311806A	1991-01-21	KISHI TAKAHIKO
PURPOSE: To prevent loopback distortion and to simplify the constitution by selecting the relation between carrier frequencies fC and fS ₂ to be fC=(n/4).fS ₂ ((n) is an optional number in 1, 3, 5). CONSTITUTION: The relation of 2.fS ₁=fS ₂ is selected between a sampling frequency fS ₁ of a digital modulation wave SD and a sampling frequency fS ₂ of a digital DSB modulation wave HC and the relation of fC=(1/4).fS ₂ is selected between a carrier frequency fC of a digital frequency WC and the sampling frequency fS ₂. Since the loopback component of an original signal component of the spectrum of the digital DSB modulation wave HC is overlapped in the same spectrum, in the same amplitude and the same phase, no loopback distortion is caused and it is not required to provide a loopback elimination filter between an A/D converter 30 and an amplitude modulator 34. COPYRIGHT: (C)1991,JPO&Japio
127	Frequency modulator in common use for both analog and digital signals	JP19281689	1989-07-27	JPH0276405A	1990-03-15	ERUTSUKI JIYUHANI KUISUMA
PURPOSE: To attain frequency modulation using both analog / digital signals by selecting an analog signal or a digital signal for a modulation signal in the case of modulating a radio transmission frequency signal with a base band signal. CONSTITUTION: When couplers K1, K2 are set to a position (d), digital frequency modulation, that is, signals ID, QD are selected, and when the couplers K1, K2 are set to a position (a), analog frequency modulation, that is, signals IA, QA are selected. The selected I, Q signals are mixed with an intermediate frequency signal at an intermediate frequency stage 3, the result of mixing in the intermediate frequency stages 3 is summed and the result is sent to a high frequency stage 4, in which the result is mixed with a transmission frequency signal. Thus, the frequency modulation for analog/digital is conducted. COPYRIGHT: (C)1990,JPO
128	JPH02500048A -	JP50541687	1987-05-11	JPH02500048A	1990-01-11

129	Gate type modulator for wireless frequency carrier signal	JP6099086	1986-03-20	JPS61274405A	1986-12-04	DEIMITORIOSU BATEISU

130	High-frequency booster/modulator	JP22444383	1983-11-30	JPS60117925A	1985-06-25	KOSEKI MASAHIKO
PURPOSE:To eliminate the need for conversions corresponding to different broadcast systems by providing a high-frequency modulation part and a high-frequency booster part within a container and switching a tuning circuit of the modulation part with a filter part of the booster part in case the broadcasts of different systems are received. CONSTITUTION:The sound signal is modulated at a high-frequency modulation part of a figure (a). When an electronic switching circuit 16 is off, a switching diode 15A is turned off. Then the center frequency f1 of a 1st broadcast system is decided by a tuning capacity 11 and a coil 12. At the same time, only a switching diode 15B is turned on when the circuit 16 is off with a booster circuit of a figure (b). Then a TV signal is supplied to a filter part 17 in response to the 1st broadcast system. In case the circuit 16 of (a) in a figure 4 is on, a diode 15A is turned on and a center frequency f2 of a 2nd broadcast system is decided by the capacity 11 and the coil 12. At the same time, a TV signal is supplied to a filter part 18 needed for the 2nd broadcast system when the circuit 16 is on also in a figure (b).
131	Condenser modulator for converting right angle component modulation	JP16244682	1982-09-20	JPS5863256A	1983-04-15	JIYON EI SHII BINGAMU

132	Orthogonal modulation circuit	JP14999681	1981-09-22	JPS5851602A	1983-03-26	TAKEDA KOUICHIROU
PURPOSE:To keep the orthogonality independently of an error caused at a 90 deg.- phase shifter, by producing a canceling component for a modulated signal before the orthogonal modulation of the signal and zeroing the error produced at the orthogonal modulation. CONSTITUTION:A modulated signal Y to be orthogonally modulated is applied to one input of an addition circuit 8 via a coefficient device 7 and another modulated signal X is applied to another input of a circuit 8 and they are synthesized. This synthesis signal and the signal Y are respectively applied to balanced modulators 2 and 3. A carrier wave applied to a modulator 2 is phase-shifted at a 90 deg. phase shifter 1 to the carrier wave applied to the modulator 3. The coefficient device 7 adjusts the weighting to the signal Y. This, the error component produced at the phase shifter 1 can be adjusted to be canceled at the coefficient device 7, then an orthogonal modulation signal having 90 deg. of orthogonality can be outputted from a hybrid circuit 4 without adjusting the phase shifter 1.
133	Amplitude modulator	JP7038480	1980-05-27	JPS56166609A	1981-12-21	ONO HIROSHI; KAWAMURA KIYOMI
PURPOSE:To reduce amplitude and phase distortion of the high-frequency component of a voice signal by performing pulse width modulation with regard to each out-of-phase distributed signal and a voice signal, by synthesizing them after passing them through low-pass filters, and then by generating an amplitude- modulated wave by mixing their outputs with a high frequency signal. CONSTITUTION:The output signal of an oscillator 21 is supplied toan opposite phase distributor 22. Output signals made opposite in phase are supplied to pulse width modulators 23 and 24 together with a voice signal fA. Modulation output signals are supplied to LPFs 25 and 26 to eliminate high frequency components and then their outputs are synthesized by a synthesizer 27. The output signal of an oscillator 28 is supplied to a power amplifier 29 together with the output signal of the synthesizer 27 and they are mixed together to generate an amplitude-modulated wave.
134	Parallel operation system	JP3630280	1980-03-24	JPS56132825A	1981-10-17	YOSHIDA TETSUO
PURPOSE:To obtain a parallel operation system by which AM modulation electric power can be compounded so as to be well-balanced, and also a redundant operation can be executed. CONSTITUTION:The output of the carrier oscillator 22 energizes in phase the electric power amplifiers to be modulated 251, 252 through the energizing circuits 231, 232. A series modulation amplifier 241 is inserted between the electric power source 261 and the electric power source terminal of the electric power amplifier to be modulated 251, and in the same way, a series modulation amplifier 242 is inserted between the electric power source 262 and the electric power source terminal of the electric power amplifier to be modulated 252, too. And, the outputs of the electric power amplifiers to be modulated 251, 252 are compounded by the compounding circuit 28. On the other hand, the outputs from the modulators 241 and 242 are provided to the input terminal of the differential amplifier 30, and the output of said amplifier 30 is fed back to the modulators 242 and 241, respectively. Accordingly, the outputs from 251 and 252 are always balanced equally and are provided to said compounding circuit 28.
135	Noise eliminating circuit	JP2364480	1980-02-26	JPS56119506A	1981-09-19	IIZUKA SHIYOUGO
PURPOSE:To eliminate the noise other than the pulse noise, by detecting frequency components and amplitude components of the demodulation signal and by synthesizing these components to obtain the demodulation output after band limiting. CONSTITUTION:The output of demodulating circuit 22 of the radio device is branched into two, and one is input to amplitude limiting amplifier 23, and the other is input to envelop detecting circuit 28. The signal input to amplifier 23 is amplified into a fixed amplitude and is subjected to amplitude limiting and becomes the reference signal of the phase synchronizing circuit consisting of phase comparing circuit 24, LPF25, and voltage control oscillator 26. Therefore, the output of oscillator 26 has a fixed amplitude, and the frequency coincides with the output frequency of circuit 22, and the spectrum purity becomes higher than that of circuit 22. The output of oscillator 26 becomes the input of electronic volume 27. The other demodulation signal is detected by circuit 28 and has noise components eliminated by LPF29 and has only fluctuation factors of the amplitude taken out and has the phase matched to the signal of frequency components of the phase synchronizing circuit by phase shifting circuit 210, and the signal from oscillator 26 is subjected to amplitude modulation by volume 27, and the signal which is equivalent to the signal of circuit 22 and has a small noise is output from terminal 211.
136	Amplitude modulating system	JP12563379	1979-09-29	JPS5650603A	1981-05-07	OOOKA TAKAO; ORII EIJI
PURPOSE:To obtain the amplitude modulation wave having a reduced distortion in the amplitude modulating system in which a modulation is applied to the input carrier wave by the feedback modulation system, by reducing the limitation given to the maximum modulation frequency with the minimum value of the input carrier wave. CONSTITUTION:The input carrier signal is converted by the frequency-voltage converter 31 into the voltage which is proportional to the frequency of the carrier wave. This voltage is then compared with the reference voltage of the comparator 30 to produce the signal corresponding to the frequency range of the carrier wave. With this signal, a switching setting is given to the cut-off frequency of the HPF23 and the time constant of the wave detector 26 and the loop filter 29 respectively. As a result, a reduction can be prevented for the maximum modulation frequency due to the minimum value of the input carrier frequency of the device and against an optional input carrier. Thus an amplitude modulation wave can be obtained with a reduced distortion.
137	Modulator for pulse radar transmitter	JP5660079	1979-05-09	JPS55149067A	1980-11-20	GOUUCHI TOSHIO
PURPOSE:To achieve miniaturization by making common the saturable coil and saturable transformer in the pulse radar transmitter having two or more kinds of pulse widths through the use of an air core coil for energy shift adjustment. CONSTITUTION:An air core coil 16 for energy shift adjustment is connected between the 2nd SCR5 on the narrow side of pulse width and a saturable coil 6 and the relay contacts 17 for pulse width changing-over are connected to the increase PEN18 side for the purpose of widening the pulse width. In the radar transmitter having two kinds of pulse widths through selection of the inductance of said air core coil 16, the inductance of the saturable coil 6 and the lambda (constant determined by a saturable transformer 7) of the saturable transformer 7 may be made constant simply by increasing the relay contacts 18 for pulse width changing-over and since the coil and transformer may be used commonly for two kinds of pulse widths, the saturable coil 6 and saturable transformer 7 may be made respectively one.
138	Method and apparatus for setting frequency of wireless power transmission	US14374305	2012-01-25	US09722540B2	2017-08-01	Jaesung Lee; Bongsik Kwak; Yongcheol Park; Taewook Kwon; Seonghun Lee
The present disclosure relates to a method and apparatus for setting the frequency of wireless power transmission. To this end, the method for setting the frequency of a wireless power transmission apparatus can include the steps of: obtaining power transmission information from the wireless power receiving apparatus receiving a wireless power signal; and setting the transmission frequency of the wireless power signal on the basis of the obtained power transmission information.
139	MODULATED SIGNAL GENERATING DEVICE AND WIRELESS DEVICE	US14882745	2015-10-14	US20160226685A1	2016-08-04	Yoshimasa Egashira; Keiichi Yamaguchi
According to an embodiment, the modulated signal generating device modulates an input signal and generates an output signal. The modulated signal generating device includes a plurality of amplifiers, a combiner, a determining unit and a control signal generating unit. The plurality of amplifiers connects in parallel with one another and each configures to drive based on a control signal and to generate amplified signals. The combiner configures to combine the amplified signals and to obtain the output signal having a stepwise waveform. The determining unit configures to determine number of amplifiers to be driven based on a value of the input signal in a period shorter than a period of the input signal. The control signal generating unit configures to select zero or more amplifiers to be driven from among the amplifiers, based on the number of amplifiers determined by the determining unit, the value of the input signal, and a fluctuation in the value of the input signal, and to generate the control signal for driving the selected amplifier.
140	Current driven floating driver circuit	US14180025	2014-02-13	US09306498B2	2016-04-05	Sven Simons
A circuit for generating a modulated signal is disclosed. The circuit includes a constant current source. The circuit further includes a first switch that is coupled to the constant current source. The circuit also includes a second switch that is coupled to the first switch and a ground. The first switch and the second switch are coupled to a third switch. The third switch is coupled to a first integrated circuit pad. The first integrated circuit pad is defined to be used for coupling the third switch to a resonance circuit.

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