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31. 发明专利

JPS58170181A TVIF3 SIGNAL GENERATOR 失效
公开(公告)号：JPS58170181A
公开(公告)日：1983-10-06
申请号：JP5194482
申请日：1982-03-30
申请人： FUJITSU LTD
发明人： KIDENA MINORU , OGINO MASAO
IPC分类号： H04N5/00 , H04N17/00 , H04N17/02
摘要： PURPOSE:To set automatically the level of each color and to attain accurate and quick measurement of temperature, by giving the sweep of frequency to a video carrier, subcarrier and sound carrier in response to each color. CONSTITUTION:The data read out of memories 23a and 23b are converted into analog signals by A/D converters 24a and 24b. Output level controllers 16a and 16b are controlled, and a video carrier fv and a subcarrier fs are set at levels corresponding to each color. An address signal is successively delivered from a shift register 21 in accordance with a clock supplied from a clock generator 20. Thus six types of address signals are delivered repetitively to deliver successively with variations of frequency the waves fv and fs of levels corresponding to each color B (blue), R (red), M (magenta), G (green), C (cyan) and Y (yellow) respectively, and together with a sound carrier fA of a fixed level. Both the output level corresponding to each color and a cross modulation component are simultaneously displayed to a spectrum analyzer.

32. 发明专利

JPS56169435A PHASE SYNCHRONIZATION OSCILLATOR 失效
公开(公告)号：JPS56169435A
公开(公告)日：1981-12-26
申请号：JP7310080
申请日：1980-05-31
申请人： FUJITSU LTD , JAPAN BROADCASTING CORP
发明人： OGINO MASAO , YOSHII KUNIKATSU , IGARASHI HIROSHI , ICHIKAWA KAZUYOSHI
IPC分类号： H03L7/00 , G01M7/00 , H03L7/22
摘要： PURPOSE:To make the oscillating circuit of both systems to the same constitution completely, by enabling to produce two output signals in phase synchronism individually and at the some time through the use of two PLL ocillators. CONSTITUTION:An output signal of a voltage controlled oscillator VCO21 is fed back to a phase detector 22 and it is in phase comparison with the output signal of a VCO24. The output of the phase detector 22 is fed to the VCO21 via an LPF23 to control the oscillating frequency. On the other hand, the output of the VCO24 is fed back to a phase comparator 25 and it is compared for the phase with the output signal of the VCO21, and the output of the phase comparator 25 is converted into a DC signal via an LPF26 to control the frequency of the VCO24. Thus, if the characteristics of two PLL oscillators are equal, the oscillating frequency of the VCOs 21 and 24 is converged to (f1+DELTAf1/2) respectively and finally. Thus, independent signals having the frequencies of f1+DELTAf1 and f1 can be obtained from the terminals No.1 and No.2, respectively.

33. 发明专利

JPS56110354A PARALLEL OPERATION SYSTEM OF RADIO DEVICE 失效
公开(公告)号：JPS56110354A
公开(公告)日：1981-09-01
申请号：JP1311680
申请日：1980-02-06
申请人： FUJITSU LTD
发明人： YOSHII KUNIKATSU , OGINO MASAO , IGARASHI HIROSHI
IPC分类号： H04B1/40 , H04B1/74
摘要： PURPOSE:To increase the reliability of a parallel operation system, by giving a simultaneous and parallel operation to the two units of radio devices and delivering the outputs of both devices after matching and compounding the phases to each other. CONSTITUTION:The system comprising the mixers 16-1 and 16-2, intermediate frequency amplifiers 17-1 and 17-2 plus mixers 18-1 and 18-2 is operated in parallel via the distributor 15 and the compounder 19. The voltage control quartz oscillator VCOXO forms a PLL circuit wit the phase comparator PD, and the signal of the VCXO of the remote side is applied as the reference signal of each PLL. Thus the two PLLs produce the same frequency fL1 having a synchronoism of phases. In such constitution, if one system has a trouble, the other system can be operate continuously owing to a parallel operation. Thus the reliability can be increased for the system.

34. 发明专利

JPH05102777A DISTRIBUTER OR SYNTHESIZER 失效
公开(公告)号：JPH05102777A
公开(公告)日：1993-04-23
申请号：JP25953391
申请日：1991-10-08
申请人： FUJITSU LTD
发明人： OGINO MASAO
IPC分类号： H03H7/48 , H01P5/02 , H01P5/12
摘要： PURPOSE:To provide the distributer or the synthesizer whose matching is taken by an impedance matching circuit even when number of the distributers of the synthesizers is changed with respect to the distributer or the synthesizer used when plural power amplifiers are employed for a radio transmitter. CONSTITUTION:The distributer or the synthesizer is provided with cables of number of distribution or synthesis whose length is lambda/2 (lambda is wave length) and whose one terminals are connected together at a connecting point 10 and with an impedance matching circuit comprising lines whose length is lambda/4 used to match the impedance between the point 10 and an input point of distributed signals or an output point 11 of synthesized signals. Through the constitution of the distributer or synthesizer as above, the impedance matching circuit is made up of the plural cables 1, 2, 3,...N whose length is lambda/4, and number of the cables 1, 2, 3,...N whose length is lambda/4 is used selectively to match the impedance depending on the distributed number or the synthesized number.

35. 发明专利

JPH04281200A SIMULATION SYSTEM 失效
公开(公告)号：JPH04281200A
公开(公告)日：1992-10-06
申请号：JP6788091
申请日：1991-03-07
申请人： FUJITSU LTD , FUJITSU TOTSUKI SYST KK
发明人： OGINO MASAO , KANAZAWA KENICHI
IPC分类号： F42B8/28
摘要： PURPOSE:To permit exercise just like as actual battle by a method wherein a discriminating signal is transmitted from a mine, detecting the passage of a moving body, to a light projecting unit through a wire transmission passage, then, an optical signal, modulated by a hitting signal, is projected against the corresponding mine while the optical signal is received by the moving body whereby the moving body is notified that the same is hitted by the simulation mine. CONSTITUTION:When a moving body 1 such as a vehicle or the like has passed over either one of a plurality of mines 2, buried under the ground in a mine field 20, said mine 2 detects it and transmits a signal modulated by own discriminating signal. The modulated signal is transmitted to a light projecting unit 4 through a wire transmission passage 3 to detect the discriminating signal in the modulated signal. An optical signal, modulated by a predetermined hitting signal, is projected from a place on the ground into the positional direction of the corresponding mine 2 by said detection whereby the optical signal is received by the moving body 1. The moving body 1 detects the hitting signal in the optical signal and recognizes that the same is hitted by the mine 2 in simulation. On the other hand, an indicator 8 is operated simultaneously to indicate that the moving body 1 is hitted by the mine to the whole of the mine field 20.

36. 发明专利

JPH0466891A BEAM SCANNING OF ANTENNA 失效
公开(公告)号：JPH0466891A
公开(公告)日：1992-03-03
申请号：JP17887790
申请日：1990-07-06
申请人： FUJITSU LTD
发明人： NOMURA FUMITO , OGINO MASAO
IPC分类号： G01S7/02
摘要： PURPOSE:To obtain a transmitting beam which has a wide range beam and high effective emitting power by scanning spirally a comparatively narrow width transmitting beam so as to cover wide range beam width, and then by emitting the beam. CONSTITUTION:RF signals distributed by a power distributor 11 are fed to phase shifters 12a,12b ..., and phases thereof are sequentially shifted there by a predetermined amount, by control signal from a beam controller 13. The iso phase surface, that is to say, are changed and emitted from elements 1a,1b ...through amplifiers 14a,14b .... In this case, the phase shifting is controlled by the beam controller 13 so that the beam scanning may be conducted spirally from a point P to a center and may scan almost the same range as that of an ordinary beam width W', on the whole. In this way, even by using an emitting beam B of narrower beam width than the ordinary beam width W', almost the same extent of widening as an ordinary one, can be attained, on the whole.

37. 发明专利

JPS6248180A EQUIPMENT FOR REMOVING RECEIPT INTERFERING WAVE FOR TELEVISION SIGNAL 失效
公开(公告)号：JPS6248180A
公开(公告)日：1987-03-02
申请号：JP18906385
申请日：1985-08-27
申请人： FUJITSU LTD , JAPAN BROADCASTING CORP
发明人： KIDENA MINORU , SUZUKI SHINJIRO , OGINO MASAO , ICHIKAWA KAZUYOSHI
IPC分类号： H04N5/21
摘要： PURPOSE:To detect an interfering wave and remove it by providing a high frequency switch for changing over a signal passage so as to pass an intermediate frequency signal of a television signal through a receipt interfering wave removing system during detecting the receipt interfering wave by a receipt interfering wave detecting system. CONSTITUTION:When the existence of an interfering wave is detected with respect to an intermediate frequency signal of a television signal inputted to an input terminal (JI) by a receipt interfering wave detecting system consisting of a frequency converter 9, a phase synchronous oscillator 10, a band-pass filter 11, a detector 12, a low pass filter 13, a logarithmic amplifier 14, an analog switch 15, an analog-digital converter 16, memories 17, 18 and a processor 19, the processor 19 drives high frequency switches 2, 6 to change over the intermediate frequency signal so as to pass through a receipt interfering wave removing system including a converter 3, a band stop filter 4 and a frequency converter 5. Thereby, a spectrum component of the interfering wave is automatically detected and can be removed.

38. 发明专利

JPS6130104A Frequency modulation circuit 失效
标题翻译：频率调制电路
公开(公告)号：JPS6130104A
公开(公告)日：1986-02-12
申请号：JP14969884
申请日：1984-07-20
申请人： Fujitsu Ltd
发明人： OGINO MASAO
IPC分类号： H03C3/22
CPC分类号： H03C3/22
摘要： PURPOSE:To obtain + or -5X10 stability without a complicated circuit by connecting a temperature compensating variable capacitance element, to which a temperature compensating element is connected, in parallel to a modulating variable capacitance element through a capacitor. CONSTITUTION:Temperature compensating diodes D2 and D3 are connected to the side of a power source voltage +V; and if the gradient of the temperature compensating characteristic is reverse, diodes D2 and D3 are connected in series to a resistance R4, and the reverse bias characteristic of a varactor diode VC2 due to the variation of temperature in case of series connection between diodes D2 and D3 and a variable resistance RV2 is opposite to that in case of series connection between diodes D2 and D3 and the resistance R4. Since the diode VC2 is connected to a tuning circuit through a capacitor C6, it is connected in parallel to a varactor diode VC1 through capacitors C2 and C6. Thus, the variation of the capacity of the diode VC2 is independent of the frequency characteristic to perform temperature compensation.
摘要翻译：目的：通过将通过电容器与调制可变电容元件并联连接温度补偿元件的温度补偿可变电容元件，以获得+或-5X10 <-4的稳定性而不会产生复杂的电路。构成：温度补偿二极管D2和D3连接到电源电压+ V的一侧; 并且如果温度补偿特性的梯度反向，则二极管D2和D3与电阻R4串联连接，并且由于二极管D2与二极管D2之间的串联连接时的温度变化引起的变容二极管VC2的反向偏置特性 D3和可变电阻RV2与在二极管D2和D3与电阻R4之间的串联连接的情况下相反。由于二极管VC2通过电容器C6连接到调谐电路，它通过电容器C2和C6并联连接到变容二极管VC1。因此，二极管VC2的容量的变化与执行温度补偿的频率特性无关。

39. 发明专利

JPS60148237A SPACE DIVERSITY CONTROL SYSTEM 失效
公开(公告)号：JPS60148237A
公开(公告)日：1985-08-05
申请号：JP459284
申请日：1984-01-13
申请人： FUJITSU LTD
发明人： OGINO MASAO
IPC分类号： H04B7/08
摘要： PURPOSE:To attain the reception excellent in S/N at all times by synthesizing signals after AGC operation when an input electric field is a prescribed value or over in the synthesis of space diversity reception signals and synthesizing the signals without AGC when a prescribed value or below. CONSTITUTION:A signal received by a space diversity antenna of a microwave is inputted to individual microwave AM television repeaters 1, 1' respectively, amplified (2) separately respectively and mixed with a frequency from a local osciallator 4 and divided into the 1st intermediate frequency IF1, and then amplified (5), mixed (6) with a frequency from a local oscillator 7, divided into the 2nd intermediate frequency IF2 and outputted through an AGC circuit 8. The IF2 signal from the circuit 8 is synthesized and outputted at a signal synthesizer 10 through swithces SW9, 9'. In this case, when the input electric field strength is a prescribed value or over, the signal after the AGC circuit 8 is operated is synthesized (10), and when the input electric field strength is a prescribed value or below, the IF2 signal is synthesized (10) as it is without operating the AGC and the output is obtained.

40. 发明专利

JPS60148205A DETECTION CIRCUIT 失效
公开(公告)号：JPS60148205A
公开(公告)日：1985-08-05
申请号：JP459184
申请日：1984-01-13
申请人： FUJITSU LTD
发明人： OGINO MASAO
IPC分类号： G01R29/08 , H03D1/06 , H03D3/00
摘要： PURPOSE:To display an input electric field over a wide range without being affected with temperature by connecting the series connection of a rectifier element and a resistor to an output stage after an input signal is detected by the rectifier element. CONSTITUTION:When half wave voltage doubling detection is applied to an input signal 3 and a detected output voltage 4 is fed to a level meter or the like, and when a detected voltage at a point 5 reaches a prescribed value or over, a current flows through the D3 and the RV2 and is added to the current of a resistor R1 so as to decrease the rate of rise of the voltage 4. Thus, the indication of the level meter is not overscaled even when the input electric field is strong so as to attain display over a wide range. Since the current after detection is bypassed at the point 5 by the D3 and the RV2, the increased current by diodes D1, D2 for detection flows in the form of a current Ii in the D3 even with temperature rise and then it is compensated.

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