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31. 发明专利

JPH1188154A PHASE SYNCHRONIZING OSCILLATOR 失效
公开(公告)号：JPH1188154A
公开(公告)日：1999-03-30
申请号：JP24822397
申请日：1997-09-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUBOTA YOSHIHIRO , MATSUO KOICHI
IPC分类号： H03K5/00 , H03B19/00 , H03L7/08
摘要： PROBLEM TO BE SOLVED: To omit a multiplier by utilizing that a higher harmonic is outputted from a voltage controlled oscillator(VCO) and amplifying the n-th higher harmonic signal of a desired VCO by means of an n-th higher harmonic frequency band amplifier. SOLUTION: A voltage controlled oscillator fundamental wave signal inputted to a fundamental frequency band amplifier 15 is divided into 1/m of a voltage controlled oscillator basic frequency 11 by a frequency divider 7. The frequency divided output signal is compared with a reference signal from a reference signal oscillator 1 by a phase comparator 2 and a voltage corresponding to phase difference between two frequencies is generated. The voltage generated by the phase comparator 2 is inputted to a loop filter 3, an unrequired higher harmonic component included in the output of the phase comparator 2 and noise are removed and also a control voltage for oscillating VCO 4 by the frequency being synchronized with the reference signal is outputted. Therefore, VCO 4 outputs the frequency being synchronized with the reference signal by the control voltage from the loop filter.

32. 发明专利

JPH09130107A MICROWAVE ATTENUATOR 失效
公开(公告)号：JPH09130107A
公开(公告)日：1997-05-16
申请号：JP28063495
申请日：1995-10-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIYONO KIYOHARU , TSUBOTA YOSHIHIRO , KOMAKI MASAHIKO
IPC分类号： H01P1/22
摘要： PROBLEM TO BE SOLVED: To improve the attenuation quantity and the reflection characteristic in the out-band areas especially in a low frequency band and also to vary the attenuation quantity by placing the 1st and 2nd resistors at both sides of the coupling lines having the length equal to 1/4 wavelength. SOLUTION: The coupling lines 4 having the length equal to 1/4 wavelength at a desired frequency band are used in place of the transmission lines of a conventional microwave attenuator. When the lines 4 are formed by the microstrip lines, the characteristic impedance of both lines 4 is determined, based on the line width and the inter-line space. Thus the specific line width and inter-line space are selected to secure a desired characteristic impedance. As a result, the lines 4 can be almost electrically equalized to the conventional transmission line. Therefore, the microwave attenuator can secure the same characteristic as conventional at a necessary band. However, the coupling value of the lines 4 are very small in the out-band areas and therefore the reflection characteristic of an input terminal 1 or an output terminal 2 is deteriorated. However, the attenuation quantity is increased between both terminals 1 and 2.

33. 发明专利

JP2004007037A VOLTAGE CONTROLLED OSCILLATOR 审中-公开
公开(公告)号：JP2004007037A
公开(公告)日：2004-01-08
申请号：JP2002157463
申请日：2002-05-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWAKAMI KENJI , ISODA YOJI , TSUBOTA YOSHIHIRO , HAMANO SATOSHI , FURUYA TERUO , MATSUO KOICHI , TAMAKI TSUTOMU , SUZUKI TAKUYA
IPC分类号： H03B5/18 , H03B5/12
摘要： PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator provided with a stub of a 1/4 wavelength whose tip is open, using one electrode of a diode for a short circuit point in terms of radio frequency (RF) and applying a negative voltage to the electrode in terms of DC so as to increase the voltage applied across the diode thereby extending the variable range of the oscillated frequency. SOLUTION: The voltage-controlled oscillator is provided with: a transistor 3 being an oscillator element; a microstrip line 20 for phase adjustment; and a resonator 5. The resonator 5 includes: a microstrip line 8 whose tip is open or short-circuited; a 90-degree inverter line 7; an inductor 6; the varactor diode 4 whose anode is connected in series with the inductor 6; a positive voltage application power supply 2 for applying a positive voltage to the anode of the varactor diode 4 via a resistor R11; a negative voltage application power supply 10 for applying a negative voltage to the cathode of the varactor diode 4; and the stub 9 whose tip is open, connected to the cathode of the varactor diode 4. COPYRIGHT: (C)2004,JPO

34. 发明专利

JP2002359520A MICROWAVE OSCILLATOR 失效
公开(公告)号：JP2002359520A
公开(公告)日：2002-12-13
申请号：JP2001167137
申请日：2001-06-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUBOTA YOSHIHIRO , TAJIMA KENICHI , ISODA YOJI
IPC分类号： H03B5/18 , H03B5/04 , H03L1/02
摘要： PROBLEM TO BE SOLVED: To obtain a microwave oscillator, capable of realizing satisfactory compensation by reducing power consumption of the entire microwave oscillator, with respect to changes in the oscillation frequency. SOLUTION: A reference voltage is divided by a voltage dividing circuit 13, by utilizing temperature characteristics of a thermistor 14, the terminal voltage of the thermistor 14 of the circuit 13 is offset as a main coil reference voltage, and the drive current of a main coil 2 is controlled and changed in the direction of canceling the temperature characteristics of the oscillation frequency of a YIG(Yttrium-Iron-Garnet), thereby making the oscillation frequency of the microwave oscillator to be constant, regardless of the temperature.

35. 发明专利

JP2002312708A ELECTRONIC ACCOUNT SETTLEMENT METHOD, ELECTRONIC ACCOUNT SETTLEMENT SYSTEM, INFORMATION PROVISION METHOD, INFORMATION PROVISION SYSTEM, PROGRAM FOR ELECTRONIC ACCOUNT SETTLEMENT AND PROGRAM FOR INFORMATION PROVISION 失效
公开(公告)号：JP2002312708A
公开(公告)日：2002-10-25
申请号：JP2001115871
申请日：2001-04-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKAYAMA NAOHISA , KAWAKAMI KENJI , TAKAHASHI IKUO , TSUBOTA YOSHIHIRO , SHIMOZAWA MITSUHIRO , ISODA YOJI , ISHIDA OSAMI , YOSHIDA TOSHIYA , MIYAJI TAIZO
IPC分类号： G07F19/00 , G06Q10/00 , G06Q20/00 , G06Q20/02 , G06Q20/32 , G06Q20/34 , G06Q20/40 , G06Q20/42 , G06Q50/00 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To automatically confirm whether or not an account is settled correctly between the shop side device of a commercial transaction and the server of a transaction financial institution on the spot at the time of account settlement without operating a key on the shop side device of the commercial transaction every time and to quickly settle the account. SOLUTION: The server 700 for finance transmits and receives information to/from a mobile object communication terminal 100, a management device 300 on a shop side and a system terminal, and in the case of receiving password information for withdrawal and account settlement money amount information corresponding to the mobile object communication terminal 100 from the shop side, discriminates whether or not the account settlement money amount information can be settled and prepares image information indicating that it can be settled to be transmitted to the shop side in the case of discriminating that it can be settled.

36. 发明专利

JP2002281149A MOBILE COMMUNICATION TERMINAL, FIXED COMMUNICATION TERMINAL, COMMUNICATION SYSTEM AND METHOD 失效
公开(公告)号：JP2002281149A
公开(公告)日：2002-09-27
申请号：JP2001081345
申请日：2001-03-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUBOTA YOSHIHIRO , KAWAKAMI KENJI , TAKAHASHI IKUO , TAKAYAMA NAOHISA , SHIMOZAWA MITSUHIRO , ISODA YOJI , ISHIDA OSAMI , YOSHIDA TOSHIYA , MIYAJI TAIZO
IPC分类号： H04M1/725 , H04M1/00 , H04M1/274 , H04M1/56 , H04W48/18 , H04W84/10 , H04W88/18 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To solve the problem that in a closed space where the radiation of electric waves is limited or prohibited, even added functions such as telephone directory function and a communication service function, cannot be used. SOLUTION: A communication system has a function to transmit and receive electric waves which serve as a medium of radio communication, and comprises a mobile telephone 1 having a built-in WLC and a public telephone 2. The mobile telephone 1 having a built-in WLC comprises a radio communication means 3 for on/off of turning the transmission and receiving function, a memory 7 for recording a telephone director which consists of one or more telephone number, and WLC 8 in which the telephone number information selected from the telephone directory stored in the memory 7 is written. The public telephone 2 with R/W comprises R/W 14 which reads the telephone number information from the WLC 8 in proximity and a wired communication means 10 which conducts wired communication with another party assigned by the telephone number information read out by the R/W 14.

37. 发明专利

JP2001083245A TARGET-INFORMATION DETECTING SYSTEM 失效
公开(公告)号：JP2001083245A
公开(公告)日：2001-03-30
申请号：JP26224499
申请日：1999-09-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUBOTA YOSHIHIRO , FURUYA TERUO
IPC分类号： G08G1/01 , G01S13/34 , G01S13/93 , G08G1/16
摘要： PROBLEM TO BE SOLVED: To obtain a target-information detecting system in which information used to discriminate a target is obtained in addition to a distance up to the target and its relative speed. SOLUTION: This target-information detecting system is constituted of a target 14 equipped with a frequency selective reflector, in which a part or the whole of the target is constituted of a radio-wave reflector which reflects one or a plurality of specific frequencies in a high-frequency modulation signal which is transmitted from an FM pulse Doppler radar 3. The target-information detecting system is constituted of the FM pulse Doppler radar 3 which is composed of an oscillator 6, a power distribution means 7, a pulse modulation means 8, a first antenna 9a, a second antenna 9b, a frequency converter 10, a distance and relative-speed detection circuit 11, and a code detection circuit 13. As a result, in addition to a distance up to the target and its relative speed, it is possible to obtain code information on the target which corresponds to the frequency characteristic of the frequency selective reflector constituting the target.

38. 发明专利

JPH10256801A MICROWAVE CIRCUIT 失效
公开(公告)号：JPH10256801A
公开(公告)日：1998-09-25
申请号：JP5173497
申请日：1997-03-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUBOTA YOSHIHIRO
IPC分类号： H01P1/04 , H01P3/08 , H01P5/02
摘要： PROBLEM TO BE SOLVED: To secure the matching of impedance between the microwave circuits and to reduce the loss of a transmission circuit while keeping a gap between the microwave circuits by adding an impedance transformer of frequency to every microwave circuit to set a specific rate against the intra-transmission line wavelength. SOLUTION: An impedance transformer having length of 1/4 intra- transmission line wavelength λg is prepared between the microstrip line substrates 7c and 7d and a conductive ribbon or wire 5. Thus, the microwave or millimeter wave that is inputted from a microwave circuit can be transmitted to the substrate 7c or 7d with no reflection caused at the part of the ribbon or wire 5 owing to presence of the impedance transformer of 1/4 wavelength. Furthermore, a specific gap 8 is prepared between both substrates 7c and 7d to prevent the breakage of these substrates due to the interference despite their expansion or shrinkage caused against the ambient temperature change of the microwave circuit.

39. 发明专利

JPH06209211A MICROWAVE CIRCUIT 失效
公开(公告)号：JPH06209211A
公开(公告)日：1994-07-26
申请号：JP246993
申请日：1993-01-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUBOTA YOSHIHIRO
IPC分类号： H01Q13/08
摘要： PURPOSE:To obtain a microwave circuit in which the intrusion of an adhesive entering an air layer between a first dielectric substrate and a second dielectric substrate to the lower face of a conductive patch antenna can be prevented, and the deviation of the oscillation frequency of the antenna can be suppressed. CONSTITUTION:A groove 4 is provided on the second dielectric substrate 3. Thus, it is possible to prevent the adhesive 9 entering the air layer between the bounded faces of the first dielectric substrate 1 and the second dielectric substrate 3 from intruding up to the lower face of a conductive patch antenna 2.

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