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91. 发明专利

JP2000049000A FREQUENCY ADJUSTING DEVICE 失效
公开(公告)号：JP2000049000A
公开(公告)日：2000-02-18
申请号：JP21676898
申请日：1998-07-31
申请人： KEM KK
发明人： YONEYAMA SHIMAO , KANEKO KAZUFUMI
IPC分类号： H05H1/46 , C23C16/50 , H01L21/302 , H01L21/3065 , H01L21/31 , H03B1/00 , H03B28/00
摘要： PROBLEM TO BE SOLVED: To supply electric power from an electric power source with high transfer efficiency by adjusting the oscillation frequency of a high-frequency power source following to fluctuation of load impedance in a high-frequency resonator such as plasma processing equipment. SOLUTION: The oscillation frequency of a high-frequency power source 2 for supplying electric power to a high-frequency resonator 1 is adjusted to meet the load impedance of the resonator 1, in this frequency adjusting device 3. This adjusting device 3 regulates the oscillation frequency of the power source 2 to make reflected wave power detected by a reflected wave power meter 6 minimum. The device 3 regulates also the oscillation frequency of the power source 2 to make the phase difference between voltage and current detected by a phase detector 7 0 deg.C.

92. 发明专利

JPH11346118A CAPACITY ARRAY UNIT, CAPACITY ARRAY UNIT CONTROLLER, OSCILLATION CIRCUIT, VOLTAGE-CONTROLLED OSCILLATOR, VOLTAGE FREQUENCY ADJUSTING SYSTEM AND OSCILLATION FREQUENCY ADJUSTING METHOD 失效
公开(公告)号：JPH11346118A
公开(公告)日：1999-12-14
申请号：JP8049899
申请日：1999-03-24
申请人： SEIKO EPSON CORP
发明人： ENDO TAKASHI , OKA MANABU
IPC分类号： H03B5/32 , H03B1/00 , H03B5/12 , H03B5/36
摘要： PROBLEM TO BE SOLVED: To reduce manufacturing cost, simplify an assembling process, realize miniaturization and stable operation. SOLUTION: A low-priced voltage-controlled piezoelectric oscillator is realized by reducing the assembling cost by reducing the number of external parts by one, by constituting the voltage-controlled piezoelectric oscillator to be trimmerless through the use of a capacity array CARY and a capacitor array CKARY further. The capacity array CARY and the capacitor array CKARY can be integrated in C to miniaturize the voltage-controlled piezoelectric oscillator. The voltage-controlled piezoelectric oscillator, using the capacity array CARY and the capacitor array CKARY, is stable concerning deterioration with age and operation mechanism and stabilizes the operation of the piezoelectric oscillation circuit. Oscillating center frequency adjusting operation can be executed through only electrical adjustments by allowing an oscillating center frequency adjusting device 32 to output data DADJ which are digital data. Since mechanical adjustment is dispensed with as in the conventional oscillators, time for adjusting the center oscillation frequency can be reduced, and as a result the manufacturing cost of the voltage-controlled piezoelectric oscillator is reduced.

93. 实用新型

JP3060481U 失效
公开(公告)号：JP3060481U
公开(公告)日：1999-08-31
申请号：JP1029698
申请日：1998-12-25
IPC分类号： H03B1/00 , G01R31/00 , H03B5/02

94. 发明专利

JPH11234039A FREQUENCY SHIFT QUANTITY ADJUSTING METHOD FOR VOLTAGE-CONTROLLED OSCILLATOR 失效
公开(公告)号：JPH11234039A
公开(公告)日：1999-08-27
申请号：JP3624198
申请日：1998-02-18
申请人： TDK CORP
发明人： KATSUMATA MASASHI , ENDO TAKESHI
IPC分类号： H01P7/08 , H03B1/00 , H03B5/12 , H03B5/18
摘要： PROBLEM TO BE SOLVED: To provide a method which can precisely adjust a frequency shift quantity of the voltage-controlled oscillator, regardless of the variance in the characteristics of an element such as a strip line. SOLUTION: A strip line 16 of a resonator is provided with an intermediate tap 19. A switching element 20 is connected to the intermediate tap 19 and turned on to electrically short-circuit the intermediate tap to the ground, thereby varying the oscillation frequency. The frequency shift quantity is adjusted by forming a slit from nearby the intermediate tap 19 toward the short-circuit end 17 of the strip line along the strip line 16. The frequency shift quantity is adjusted by forming a slit B1 from nearby the short-circuit end 17 of the strip line 16 toward the intermediate tap 19 along the strip line 16. The shift quantity is adjusted by providing trimming places more on the sides of a hot terminal 18 and the short-circuit end 17 than the intermediate tap 19 and forming a slit across the strip line 16.

95. 发明专利

JPH11214927A HIGH FREQUENCY MODULE 失效
公开(公告)号：JPH11214927A
公开(公告)日：1999-08-06
申请号：JP1700698
申请日：1998-01-29
申请人： MURATA MANUFACTURING CO
发明人： SAKAMOTO KOICHI , YAMASHITA SADAO , KATO TAKATOSHI , FUJII YASUO , IIO KENICHI , HIRATSUKA TOSHIRO
IPC分类号： H01P1/212 , H01P7/10 , H03B1/00 , H03B5/18
摘要： PROBLEM TO BE SOLVED: To suppress the increase in a line impedance and to resolve problems associated with reflections in the middle of the line by arranging the line connected to a dielectric resonator on the inner side of an opening and at a position along with the terminal edge of the opening. SOLUTION: A dielectric board constitutes a dielectric resonator by forming conductor films on both main faces. Lines 11 and 12 are formed on the surface of substrate 6, and the lines 11 and 12 are magnetically connected to the dielectric resonator in a state where the substrate 6 is stacked on the dielectric board. They are arranged on a concentric arc with respect to an electrode opening so that the auxiliary line 12 passes through the inner side of the terminal edge of an electrode opening 4. In the auxiliary line 12, a varactor diode 16 is arranged at a position almost 1/4 wavelength from a position bent in an almost right angle from a part on the concentric arc. In this way the distance between the auxiliary line 12 and an electrode 2 uniformly decreases and the position dependency of the characteristic impedance of the auxiliary line 12 becomes small. Consequently, the overall impedance change of the auxiliary line 12 becomes small.

96. 发明专利

JPH11507192A 失效
公开(公告)号：JPH11507192A
公开(公告)日：1999-06-22
申请号：JP53508497
申请日：1997-03-28
IPC分类号： H03B5/08 , H03B1/00 , H03B5/04 , H03L7/099 , H03L7/10 , H03L7/18 , H03L7/183

97. 发明专利

JPH11163683A TUNER FOR CABLE MODEM 失效
公开(公告)号：JPH11163683A
公开(公告)日：1999-06-18
申请号：JP32763597
申请日：1997-11-28
申请人： SHARP KK
发明人： MATSUURA SHUJI
IPC分类号： H03B1/00 , H03B5/12 , H03J5/24 , H04L27/18 , H04L27/34 , H04N21/647 , H04N7/16
摘要： PROBLEM TO BE SOLVED: To provide a tuner with reduced phase noises of a local oscillator in a frequency conversion circuit thereby attaining improvement in receiving quality, local leakage, oscillation stability and economy. SOLUTION: In a local oscillator in a frequency conversion circuit, the base of one transistor 5-1 differential pair is connected to one end of a resonance circuit 41 through a feedback capacitor 14 and also, the collector of the other transistor 5-2 differential pair is connected through a feedback capacitor 15. On the other hand, only the base of the transistor 5-2 is connected to the other end of the circuit 41 through a feedback capacitor 17. Consequently, a differential amplifier circuit 42 consisting of the transistors 5-1 and 5-2 is connected to the circuit 41.

98. 发明专利

JP2891037B2 失效
公开(公告)号：JP2891037B2
公开(公告)日：1999-05-17
申请号：JP11296793
申请日：1993-05-14
申请人： YOKOGAWA DENKI KK
发明人： SHINMEN KEIZO
IPC分类号： H03B28/00 , H03B1/00

99. 发明专利

JP2868238B2 失效
公开(公告)号：JP2868238B2
公开(公告)日：1999-03-10
申请号：JP24004589
申请日：1989-09-18
申请人： HOKURIKU DENKI KOGYO KK
发明人： UMEZAWA KENICHI
IPC分类号： H05K1/18 , H01L21/822 , H01L27/00 , H01L27/04 , H03B1/00 , H03B5/02 , H03C3/02 , H05K1/02 , H05K3/46

100. 发明专利

JPH10303647A AIR-TIGHT CRYSTAL OSCILLATOR 失效
公开(公告)号：JPH10303647A
公开(公告)日：1998-11-13
申请号：JP11212797
申请日：1997-04-30
申请人： NEC CORP
发明人： ENOMOTO HIDEYUKI
IPC分类号： H03B1/00 , H03B5/32
摘要： PROBLEM TO BE SOLVED: To provide the air-tight crystal oscillator where re-adjustment of a frequency is easily conducted and increase in the mount area and trouble of mounting caused by an externally mounted component are prevented. SOLUTION: In this oscillator, a frequency adjustment component 11 is placed in a case 1 together with a crystal vibrator or the like, a thread hole 3 to adjust the frequency adjustment component from the outside of the case is made to the case 1, a seal screw 4 to be threaded to the thread hole 3 and a cover 5 covering them and soldered to the case 1 are provided. Thus, the inside of the case 1 is sealed air-tightly by using the seal screw 4 and the cover 5, and the cover 5 is easily removed by melting the solder 6 and the frequency re-adjustment is attained through the thread hole 3 by removing the sealing screw 4. Then no externally mounted component to re-adjust the frequency is required, troublesome mounting is avoided, the increase in the actual mount area of the crystal vibrator is prevented and a device on which the crystal oscillator is miniaturized.

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