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61. 发明专利

JP2003174324A TEMPERATURE-COMPENSATED CRYSTAL OSCILLATOR AND ITS OUTPUT FREQUENCY ADJUSTING METHOD 审中-公开
公开(公告)号：JP2003174324A
公开(公告)日：2003-06-20
申请号：JP2002058433
申请日：2002-03-05
申请人： SAMSUNG ELECTRO MECH
发明人： JUNG CHUL YOUNG
IPC分类号： H03B5/32 , H03B5/04 , H03L1/02
摘要： PROBLEM TO BE SOLVED: To provide a method of adjusting the output frequency in the condition of a finished product with a minimized space occupation by an output frequency adjusting resistor. SOLUTION: A temperature compensated crystal oscillator is composed of a crystal oscillator 103, a substrate 101 composed of a plurality of laminated substrates including an upper substrate with at least one component mounted thereon and a conductive pattern formed on at least one substrate, and a planar thin film resistor 109 formed on the upside of a lower substrate among the laminated substrates for adjusting the output frequency of the temperature-compensated crystal oscillator. Inserting the output frequency adjusting resistor between layers minimizes the space consumption to thereby miniaturize a final product. An output frequency adjusting method comprises a step of forming a temperature-compensated crystal oscillator having a planar thin film resistor formed on the upside of a lower substrate among a plurality of laminated substrates, and irradiating the bottom of the lower substrate with a laser beam to trim the thin film resistor, Thus, the output frequency is adjusted in the condition that the final product is finished and hence a more accurate room temperature output frequency is obtained. COPYRIGHT: (C)2003,JPO

62. 发明专利

JP2003152534A VOLTAGE-CONTROLLED OSCILLATOR AND PHASE-LOCKED OSCILLATION CIRCUIT 审中-公开
公开(公告)号：JP2003152534A
公开(公告)日：2003-05-23
申请号：JP2001343806
申请日：2001-11-08
申请人： YAMAHA CORP
发明人： YASUI SHOJI
IPC分类号： H03K3/03 , H03B5/04 , H03L7/093
摘要： PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator and a phase-locked oscillation circuit, whose oscillation frequency hardly depends on its power-supply voltage. SOLUTION: The phase-locked oscillation circuit has a phase comparator 10; an up-down counter 12 for performing the up/down count of the output of the phase comparator, in response to its comparison result; a D/A converter 14 for performing the D/A conversion of the counted output of the up-down counter 12; a voltage-controlled oscillator 16 for oscillating the signal of the response frequency to the output of the D/A converter 14; and a frequency divider 18 for performing the frequency-division of the output of the voltage- controlled oscillator 16 in a predetermined frequency-dividing ratio as to output the result thereof to one of the input ends of the phase comparator 10. Further, the D/A converter 14 codes the data of the counted output of the up-down counter 12 so as to convert the coded data into the voltage value obtained by the division of a power-source voltage VDD performed, based on the decoded value of the coded data.

63. 发明专利

JP3399563B2 失效
公开(公告)号：JP3399563B2
公开(公告)日：2003-04-21
申请号：JP25726092
申请日：1992-08-31
IPC分类号： H03B5/04 , H03B5/32

64. 发明专利

JP2003510879A Matching crystal temperature compensation device 审中-公开
公开(公告)号：JP2003510879A
公开(公告)日：2003-03-18
申请号：JP2001525850
申请日：2000-09-19
申请人：テレフオンアクチーボラゲットエルエムエリクソン(パブル)
发明人：ヴァルターコディム，
IPC分类号： H03B5/04 , H03B5/32 , H03L1/02
CPC分类号： H03B5/04 , H03B5/32 , H03L1/025 , H03L1/028
摘要： (57)【要約】本発明は、マスタ発振器（ｍ）およびスレーブ発振器（ｓ）で使用されるマスタ結晶（ｍｃ）およびスレーブ結晶（ｓｃ）のカット・アングルを求めることによって温度を補償する装置および方法に関する。マスタ発振器（ｍ）およびスレーブ発振器（ｓ）がその中心周波数（ｆｃ＿ｍ、ｆｃ＿ｓ）に同調されると、スレーブ発振器（ｓ）の温度特性はマスタ発振器（ｍ）の温度特性に対して能動的に離調される。離調状態では、スレーブ出力周波数とマスタ出力周波数（ｆ＿ｓ／ｆ＿ｍ）の周波数比パラメータ（ｎ＿ｓ）が求められ、このパラメータ（ｎ＿ｓ）を使用して、温度（Ｔ）に依存するカット・アングルをメモリ（ＭＥＭ）から読み出すことによって、カット・アングルが求められる。本発明は、それぞれの異なるカット・アングルを有する２つの結晶を使用し、周波数比パラメータを求めてカット・アングルの同一性／対称性または差を判定する温度補償装置および方法にも関する。本発明の特に有用な用途は、それぞれの異なる共振周波数を有する少なくとも２つの発振器を使用することを必要とするデュアル・モード携帯電話である。

65. 发明专利

JP2003069341A Rc oscillation circuit 审中-公开
标题翻译： RC振荡电路
公开(公告)号：JP2003069341A
公开(公告)日：2003-03-07
申请号：JP2001251791
申请日：2001-08-22
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： TANITSU TSUNEHIKO , KANABORI NORIMASA
IPC分类号： H03K3/354 , H03B5/04 , H03B5/20
摘要： PROBLEM TO BE SOLVED: To provide an RC oscillation circuit that can suppress a change in an oscillation cycle (oscillating frequency) due to variations in threshold voltages of transistors (TRs).
SOLUTION: The RC oscillation circuit is provided with a Schmitt inverter 1 whose hysteresis width decreases as threshold voltages Vtp, Vtn of components TRs increase, and provided with a resistor 3 connected between an input terminal OSC1 and an output terminal OSC2 of the Schmitt inverter 1 and a charging/discharging capacitor 3 directly connected to the output terminal OSC2 of the Schmitt inverter 1. The charging/discharging capacitor 3 is charged/ discharged via output TRs MP4, MN4 of the Schmitt inverter 1.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种RC振荡电路，其可以抑制由于晶体管（TR）的阈值电压的变化引起的振荡周期（振荡频率）的变化。解决方案：RC振荡电路设有施密特反相器1，其滞后宽度随着分量TR的阈值电压Vtp，Vtn增加而减小，并且设置有连接在施密特逆变器1的输入端子OSC1和输出端子OSC2之间的电阻器3 以及直接连接到施密特逆变器1的输出端子OSC2的充放电电容器3.充放电电容器3通过施密特逆变器1的输出TRs MP4，MN4进行充放电。

66. 发明专利

JP2003037437A Cr oscillation circuit 审中-公开
标题翻译： CR振荡电路
公开(公告)号：JP2003037437A
公开(公告)日：2003-02-07
申请号：JP2001223073
申请日：2001-07-24
申请人： Sony Corp , ソニー株式会社
发明人： MATSUURA AKIRA
IPC分类号： H03K3/354 , H03B5/04 , H03B5/20
摘要： PROBLEM TO BE SOLVED: To provide a CR oscillation circuit having no fluctuation, in the oscillation frequency due to changes in power supply voltage.
SOLUTION: A current mirror type bias circuit is used for a bias circuit unit 104. Reference voltages VP and VN at a VDD side and a VSS side which are independent from power supply voltage are outputted, and are respectively inputted into the gates of transistors MP12 and MN12 of an inverter 103. The transistor of a bias circuit unit, the transistor MP12 and MN12 of the inverter 103 each have a current mirror constitution. The inverter 103 outputs a constant charging/discharging current not depending on power supply voltage, and the inverter 103 is reversed by this current. A CR oscillation circuit unit 107 outputs an output signal of a stable frequency, which is independent of a power supply voltage from an output terminal (to), and a switching current of the inverter 103 which is to be miniaturized is reduced. Thus, power consumption can be reduced significantly, and the generation of radiation noises to the outside can be suppressed significantly.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供由于电源电压变化引起的振荡频率不变的CR振荡电路。解决方案：偏置电路单元104使用电流镜型偏置电路。输出与电源电压无关的VDD侧和VSS侧的参考电压VP和VN，分别输入到晶体管MP12的栅极和反相器103的MN12。偏置电路单元的晶体管，反相器103的晶体管MP12和MN12均具有电流镜结构。逆变器103输出不依赖于电源电压的恒定充电/放电电流，并且逆变器103被该电流反转。 CR振荡电路单元107输出与输出端子（to）独立于电源电压的稳定频率的输出信号，并且减小了要变小的反相器103的开关电流。因此，可以显着降低功耗，并且能够显着抑制对外界的辐射噪声的产生。

67. 发明专利

JP2003017938A Temperature compensation type quartz oscillation circuit 审中-公开
标题翻译：温度补偿型QUARTZ振荡电路
公开(公告)号：JP2003017938A
公开(公告)日：2003-01-17
申请号：JP2001196785
申请日：2001-06-28
申请人： Mitsumi Electric Co Ltd , ミツミ電機株式会社
发明人： ODA TOMOKI , SAKAI MINORU
IPC分类号： H03B5/32 , H03B5/04
摘要： PROBLEM TO BE SOLVED: To provide a temperature compensation type quartz oscillation circuit that can reduce a start time and obtain a stable oscillating frequency against power supply fluctuations.
SOLUTION: In the temperature compensation type crystal oscillation circuit, a series connection comprising a 3rd capacitor C4 and a switch element M1 connected in series therewith is connected in parallel with a 1st capacitor C1. Turning off the switch element M1 for a prescribed time from the oscillation start can shorten the start time by using only the 1st capacitor C1 and then connecting the 3rd capacitor C4 in parallel with the 1st capacitor C1 can obtain a stable oscillation frequency against power fluctuations.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种温度补偿型石英振荡电路，其可以减少启动时间并获得针对电源波动的稳定的振荡频率。解决方案：在温度补偿型晶体振荡电路中，包括第三电容器C4和与其串联连接的开关元件M1的串联连接与第一电容器C1并联。从振荡开始关闭开关元件M1规定时间可以通过仅使用第一电容器C1来缩短开始时间，然后将第三电容器C4与第一电容器C1并联连接可以获得针对功率波动的稳定的振荡频率。

68. 发明专利

JP3358619B2 Temperature compensated oscillator, temperature compensated oscillator of the control method and a wireless communication device 有权
公开(公告)号：JP3358619B2
公开(公告)日：2002-12-24
申请号：JP2000239003
申请日：2000-08-07
申请人：セイコーエプソン株式会社
发明人：学岡
IPC分类号： H03B5/32 , H03B5/04 , H03L1/02 , H04B1/3822 , H04B1/40
CPC分类号： H03L1/023 , H03L1/025

69. 发明专利

JP2002540707A 失效
公开(公告)号：JP2002540707A
公开(公告)日：2002-11-26
申请号：JP2000608499
申请日：2000-03-28
IPC分类号： H03B5/08 , H03B5/04 , H03B5/12
摘要： A multiple band voltage controlled oscillator capable of generating multiple operating frequencies, and a method of generating multiple operating frequencies, includes a tank circuit having a diode element and an impedance element with a radio frequency impedance in parallel with the diode element, a PIN diode connected across a portion of the inductance of the impedance element which selectively shorts the portion of the inductance of the impedance element when activated, a switch connected to selectively enable the PIN diode and correspondingly partially short the inductance of the impedance element, thereby scaling the radio frequency impedance of the tank circuit, and an oscillator circuit responsively connected to the PIN diode for varying the output of the voltage controlled oscillator based on the radio-frequency impedance present.

70. 发明专利

JP2002299956A MICROWAVE OSCILLATOR 失效
公开(公告)号：JP2002299956A
公开(公告)日：2002-10-11
申请号：JP2001095274
申请日：2001-03-29
申请人： SHIMADA PHYSICAL CHEM IND CO
发明人： SATO MAMORU , MAIWA KEITA
IPC分类号： H01P7/10 , H03B5/04 , H03B5/18
摘要： PROBLEM TO BE SOLVED: To accurately match a desired oscillation frequency by expanding an adjustable range of oscillation frequencies, also correcting variation of the oscillation frequencies and making it possible to perform fine adjustment of the oscillation frequencies. SOLUTION: A microwave oscillator, in which a dielectric resonator, a coupled line and a field effect transistor are sealed hermetically with a metal shield, a metal body is inserted into the metal shield from a part facing the dielectric resonator of the metal shield, and a frequency can be adjusted by the insertion of the metal body into the metal shield, has a first metal body provided with an outer diameter being smaller than the outer diameter of the dielectric resonator inserted into the metal shield and a second metal body provided with an outer diameter being larger than the outer diameter of the dielectric resonator inserted into the metal shield and varies the adjustable range of the oscillation frequencies by changing the insertion length of the first and second metal bodies inserted into the metal shield.

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