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101. 发明专利

JPH10284935A VOLTAGE-CONTROLLED OSCILLATOR AND ITS PRODUCTION 失效
公开(公告)号：JPH10284935A
公开(公告)日：1998-10-23
申请号：JP9080497
申请日：1997-04-09
申请人： MURATA MANUFACTURING CO
发明人： SAKAI MASARU
IPC分类号： H05K9/00 , H01L23/12 , H01L23/498 , H01L23/50 , H03B1/00 , H03B5/02 , H05K1/02 , H05K3/40
摘要： PROBLEM TO BE SOLVED: To secure distance between input/output terminals and to prevent the deterioration of a phase noise(C/N) characteristic by permitting terminals formed in recessed parts which are arranged in the corner parts of a substrate to be an input terminal or an output terminal. SOLUTION: A varicap diode VD, transistors Tr1 and Tr2, a capacitor C and bypass capacitors BC1 and BC2, etc., are provided on the main surface 2a of the substrate. The recessed parts 4a, 4b, 4c and 4d are formed in the corner parts of the substrate 2, a conductor is applied on respective inner peripheral surfaces and a power voltage terminal Bv, a voltage control input terminal VC, a modulation terminal M and the output terminal P are formed. The recessed parts 5a, 5b, 5c and 5d with an opening being wider than that of the recessed parts 4a-4c are formed in the almost center part of the side surfaces 2c, 2d, 2e and 2f on the substrate 2, the conductor is applied on the respective inner peripheral surfaces and grounded terminals G1, G2, G3 and G4 are formed. Thus, the dimension of the length of a substrate diagonal line is secured between the input terminal VC and the output terminal P.

102. 发明专利

JP2793521B2 失效
公开(公告)号：JP2793521B2
公开(公告)日：1998-09-03
申请号：JP17701695
申请日：1995-07-13
申请人： SAITAMA NIPPON DENKI KK , NIPPON DENKI KK
发明人： OOBA HIROAKI , OOTSUKA SHIGERU
IPC分类号： H03B5/32 , H03B1/00 , H03B5/12 , H03B5/18 , H03B5/36

103. 发明专利

JPH10163749A HIGH FREQUENCY MODULE 失效
公开(公告)号：JPH10163749A
公开(公告)日：1998-06-19
申请号：JP31527396
申请日：1996-11-26
申请人： TDK CORP
发明人： HAYASHI KATSUHIKO
IPC分类号： H05K9/00 , H03B1/00 , H03B5/12 , H03B5/18 , H05K1/02 , H05K1/14
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive high frequency module using a single layer substrate. SOLUTION: A substrate 20 is a single layer. A high frequency circuit is constituted by mounting circuit parts on the surface of substrate 20 and connecting these circuit parts through wiring patterns 11-15. The wiring patterns 11-15 include high frequency ground patterns 11 and 13 to be grounded concerning a signal belonging to the operating frequency band of high frequency circuit. The high frequency ground pattern 11 as one part of them is arranged on the rear side of substrate 20.

104. 发明专利

JPH10145139A CRYSTAL OSCILLATOR AND ITS ADJUSTMENT METHOD 失效
公开(公告)号：JPH10145139A
公开(公告)日：1998-05-29
申请号：JP29351396
申请日：1996-11-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MUTO MASAKI , MOCHIDA YOSHIHISA , MAEDA CHIKAO , MIZUKOSHI TAKASHI
IPC分类号： H03B5/32 , H03B1/00 , H03L1/02
摘要： PROBLEM TO BE SOLVED: To enhance the operation stability in a crystal oscillator and its adjustment method. SOLUTION: A control circuit is composed of a temperature sensor 30, a temperature-sensing section 32, a memory 36, an amplifier section 31 to which the memory 36 and the temperature sensor 30 are electrically connected, a 1st D/A converter section 38 interposed electrically between the memory 36 and the temperature sensing section 32, and a 2nd D/A converter section 37 interposed electrically between the memory 36 and the amplifier section 31, the amplifier section 31 is made up of a polarity inversion circuit 33 connecting to the temperature sensor 30, a variable attenuator 34, an offset adjustment circuit 100 and an amplifier circuit 35 which are connected in this order to the circuit 33, and the amplifier section 31 is connected to a sample-and-hold circuit 4 via a displacement buffer means 101, and the memory 36 has 8 control voltage setting groups or below actually in operation.

105. 发明专利

JPH1051234A VOLTAGE CONTROL OSCILLATOR AND ITS CONTROL METHOD 失效
公开(公告)号：JPH1051234A
公开(公告)日：1998-02-20
申请号：JP22305396
申请日：1996-08-05
申请人： TDK CORP
发明人： NAKAI SHINYA , KATSUMATA MASASHI , HATTORI YASUYUKI , NAGAI KENTA , FUKUMITSU YOSHIAKI , ISHIZUKA TAKEHIKO
IPC分类号： H03B1/00 , H03B5/12 , H03B5/18
摘要： PROBLEM TO BE SOLVED: To provide a voltage control oscillator which can control the voltage control sensitivity and also improve its production yield by providing a voltage control sensitivity control capacitor or an inductor 2, in addition to an oscillation frequency control capacitor and an inductor. SOLUTION: In the circuit of this voltage control oscillator, a DC-cutting capacitor C2 is placed on a line 2 and between the hot terminal of a varicap diode D and the hot terminal of a resonator-forming main inductor L2 and also functions to control the voltage control sensitivity. Furthermore, a high-frequency choke inductor L1, an oscillation frequency control capacitor C3, capacitors C1 and C4, a transistor T, etc., are connected to the circuit of the voltage control oscillator. The voltage control sensitivity is controlled by trimming the function of the capacitor C2 on the line 2. Then the oscillation frequency is controlled, by trimming the capacitor C3 which is connected in series to the inductor L2.

106. 发明专利

JP2684802B2 失效
公开(公告)号：JP2684802B2
公开(公告)日：1997-12-03
申请号：JP180190
申请日：1990-01-08
IPC分类号： H03B1/00 , H03B1/04 , H05K5/00 , H05K9/00

107. 发明专利

JPH09205324A VARIABLE FREQUENCY RESONATOR, VARIABLE FREQUENCY OSCILLATOR AND VARIABLE FREQUENCY FILTER 失效
公开(公告)号：JPH09205324A
公开(公告)日：1997-08-05
申请号：JP1080896
申请日：1996-01-25
申请人： MURATA MANUFACTURING CO
发明人： ISHIKAWA YOHEI , SAKAMOTO KOICHI , YAMASHITA SADAO
IPC分类号： H01P1/20 , H01P1/203 , H01P3/16 , H01P5/02 , H01P7/08 , H01P7/10 , H03B1/00 , H03B5/18 , H03B9/14
摘要： PROBLEM TO BE SOLVED: To obtain a variable frequency resonator with high Q, a variable frequency oscillator with high C/N and a variable frequency filter with low loss in which the characteristic of a dielectric resonator with high Q as is used and the resonance frequency of the dielectric resonator is varied. SOLUTION: Between a dielectric strip 14 as a main line and a dielectric strip 15 as a subline, a dielectric resonator 3 is arranged. On the way of the dielectric strip 15, a diode substrate 16 is arranged. The electric length of the subline is switched according to the conductive/nonconductive state of a diode, a resonance frequency is switched without lowering the Q of the dielectric resonator 3 and the oscillation frequency of a Gunn diode 22 pulled in this resonance frequency is switched.

108. 发明专利

JPH09148843A OSCILLATION CIRCUIT, SEMICONDUCTOR DEVICE AND ELECTRONIC EQUIPMENT 失效
公开(公告)号：JPH09148843A
公开(公告)日：1997-06-06
申请号：JP30315795
申请日：1995-11-21
申请人： SEIKO EPSON CORP
发明人： KUWANO SHUNICHI
IPC分类号： H03B1/00
摘要： PROBLEM TO BE SOLVED: To realize the simplifying of the state setting of a system, the facilitating of a continuous driving and the improvement of the maintenance and the long life of the system, by setting the operation mode before an input without resetting the mode after the input of a system reset when plural operating modes in which operating voltage values are different are provided. SOLUTION: These circuit, device and electronic equipment have a non- volatile memory 4, a volatile memory or a register in which data is not initialized at the time of the input of a system reset, and have plural operating modes in which operating voltage values are different. Or, these have the plural operating modes and are capable of selecting the modes during the operation of the system, and before the input of the system reset, the memory of operating modes to be selected just before the input of the system reset may be stored in the non-volatile memory 4, the volatile memory or the register.

109. 发明专利

JP2614037B2 失效
公开(公告)号：JP2614037B2
公开(公告)日：1997-05-28
申请号：JP13272385
申请日：1985-06-18
IPC分类号： H03B7/14 , H03B1/00 , H03B7/06 , H03B7/08 , H03B9/12 , H03B9/14

110. 发明专利

JPH09121119A HIGH FREQUENCY OSCILLATOR 失效
公开(公告)号：JPH09121119A
公开(公告)日：1997-05-06
申请号：JP27879495
申请日：1995-10-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAJIMA KATSUMI , SAKAKURA MAKOTO
IPC分类号： H03B1/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To increase an on/off ratio, to reduce power consumption, to decrease the number of components and to reduce the cost for a buffer amplifier section and an output changeover switch section for the high frequency oscillator. SOLUTION: A high frequency oscillation circuit 1 is connected to the base of a 1st transistor(TR) 3 via a coupling capacitor 2, a collector of the 1st TR 3 is branched into two and connected in cascode to an emitter of a 2nd TR 6a and a 3rd TR 6b. The base of the 2nd TR 6a (3rd TR 6b) is connected respectively to a switch 12a (12b) and a collector of the 2nd TR 6a (3rd TR 6b) is connected respectively to a transmission side output terminal 10a (reception side output terminal 10b). Thus, an output on/off ratio from the output terminal is increased, and the power consumption and number of components are reduced.

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