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公开(公告)号：JPH06273528A
公开(公告)日：1994-09-30
申请号：JP5667793
申请日：1993-03-17
Applicant: SONY CORP
Inventor： KOMATSU YASUTOSHI , OHASHI YOSHIO , HASHIMOTO MINORU , NAKAYAMA TETSUO
IPC: G01S17/58
Abstract: PURPOSE:To enhance stability in the oscillation mode of laser light source by suppressing interference between an emitted light and a reflected light. CONSTITUTION:A wavelength plate WP1 having optical path difference of lambda/4+nlambda is disposed between a laser light source LS and an object S so that an optical beam emitted from the laser light source and an optical beam returning back to the laser light source intersect perpendicularly to each other (with phase of lambda/2+2nlambda) thus preventing interference. Furthermore, a wavelength plate WP2 having optical path difference of lambda/4+ (2m+l)lambda/2 is disposed between a light receiving optical system RE and the object S in order to convert a circularly polarized light from the wavelength plate WP1 into a linearly polarized light thus performing characteristic processing of incident light smoothly. (lambda represents the wavelength of laser light, n and m are arbitrary integers of O or above).
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公开(公告)号：JPH04110905A
公开(公告)日：1992-04-13
申请号：JP23115690
申请日：1990-08-31
Applicant: SONY CORP , SONY MAGNESCALE INC
Inventor： OHASHI YOSHIO , HASHIMOTO MINORU , KOMATSU YASUTOSHI , SATO KENICHI
Abstract: PURPOSE:To decrease the feedback of unnecessary return light by diverging the laser beam emitted from the end face of an optical waveguide to a substrate and emitting this light as exit light from the end face of the substrate. CONSTITUTION:The exit side end face 12B is formed just before the exit side end face 11B of the substrate 11. The laser beam L 11 emitted from the exit side end face 12B progresses while diverging into the substrate 11 with respect to the exit face and is emitted as the laser beam L 12 from the exit side end face 11B of the substrate 11. The exit laser beam L 12 is condensed via a lens 6 and an object to be measured is irradiated with this light. A part of the laser beam L 11 emitted from the exit side end face 12B of the optical waveguide 12 of this time is reflected at the exit side end face 11B of the substrate 11 and such reflected light L 13 is reflected at the reflection angle equal to the incident angle of the laser beam L 11 and is diffused into the substrate 11. The return light to the optical waveguide 12 is decreased in this way.
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公开(公告)号：JPH03259203A
公开(公告)日：1991-11-19
申请号：JP5912390
申请日：1990-03-09
Applicant: SONY CORP , SONY MAGNESCALE INC
Inventor： KOMATSU YASUTOSHI , OHASHI YOSHIO , HASHIMOTO MINORU , SATO KENICHI
Abstract: PURPOSE:To evade deterioration in characteristics by offsetting an unnecessary wave by obtaining return light matching the unnecessary wave positively by a control means. CONSTITUTION:An optical waveguide, specially, an optical waveguide 2 which removes the unnecessary wave for guiding signal light is provided with a branch waveguide 40, which is provided with the control means 44 which controls the phase and amplitude of the waveguide light in the branch waveguide 40 and returns the light to the optical waveguide 2. Then the unnecessary wave in the optical waveguide 2 is canceled with this return light. Thus, the return light matching the unnecessary wave is obtained positively by the control means 44 to offset the unnecessary wave and then this device is applied to, for example, a laser Doppler speed indicator(LVD) to evade the generation of a noise in the speed detection of an object body 6 and the resulting error, noise generation in an optical communication, etc., or noise generation due to the return light of laser light used as a light source, i.e. characteristic deterioration.
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公开(公告)号：JPH0239125B2
公开(公告)日：1990-09-04
申请号：JP10097681
申请日：1981-06-29
Applicant: SONY CORP
Inventor： OTOBE TAKASHI , KOMATSU YASUTOSHI , MURAKAMI YOSHIKAZU , YAMAGUCHI TAKESHI
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公开(公告)号：JPS61111011A
公开(公告)日：1986-05-29
申请号：JP23286684
申请日：1984-11-05
Applicant: Sony Corp
Inventor： HIRABAYASHI MAKOTO , KOMATSU YASUTOSHI
Abstract: PURPOSE: To improve the side lobe characteristic by providing a surface wave element having a grounding electrode and a group type one-way interdigital electrode on a piezoelectric substrate and a 4-terminal coupler made of conductor lines formed on a dielectric substrate, terminating one terminal of the conductor line with a resistor, constituting a 90° phase shifter between other two terminals and connecting the two terminals to the grounding electrode.
CONSTITUTION: A surface acoustic filter element 18 provided with input and output transducers 2, 3 is provided on a piezoelectric substrate 1. The transducers have respectively a common electrode 4 and and electrode 5 forming two groups of interdigital electrodes 7, 8. A metallic layer 21 is coated on the entire rear face of the dielectric substrate 20, a 4-terminal coupler made of the conductor line, that is, branch couplers 10, 10' are formed on the surface, the terminal a
2 is connected to the metallic layer 21 via a resistor 17, and the 90° phase shifter is constituted between terminals a
3 and a
4 . The terminals a
3 , a
4 of the coupler 10 are connected to the electrodes 5, 6 of the transducer 2 via a thin metallic wire 22 so that the phase of the signal given to the electrode 5 is led by 90° than that of the electrode 6 and they are connected to the transducer 3 so that the phase is lagged by 90°.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：通过在压电基板上设置具有接地电极和组合单向交叉指状电极的表面波元件和形成在电介质基板上的由导线形成的4端子耦合器来提高旁瓣特性， 具有电阻的导体线构成90度。 移相器在其他两个端子之间，并将两个端子连接到接地电极。 构成：设置有输入和输出换能器2,3的表面声学滤波器元件18设置在压电基片1上。换能器分别具有公共电极4和形成两组交指电极7,8的电极5.金属层 21涂覆在电介质基板20的整个背面上，在表面上形成由导体线制成的4端子耦合器，即分支耦合器10,10'，端子a2连接到金属层21 通过电阻器17和90度。 端子a3和a4之间构成移相器。 耦合器10的端子a3，a4通过细金属线22连接到换能器2的电极5,6，使得给予电极5的信号的相位被引导90度。 与电极6相比，并且它们连接到换能器3，使得相位滞后90度。
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Patent Agency Ranking
公开(公告)号：JPS61105903A
公开(公告)日：1986-05-24
申请号：JP22826084
申请日：1984-10-30
Applicant: Sony Corp
Inventor： KOMATSU YASUTOSHI
CPC classification number: H01P1/068
Abstract: PURPOSE:To form a rotary coupler having a very wide signal transmission characteristic by providing microstrip lines opposed to each other and whose one end is terminated by a resistive terminator to an opposed face between a rotor and a stator and transmitting/receiving a high frequency signal between the microstrip lines of the rotor and stator. CONSTITUTION:The length L of opposed microstrips 15, 16, that is, the length of the microstrip 16 of the stator 12 is selected as an odd number times of 1/4 of a signal wavelength lambda of the high frequency signal, e.g., lambda/4. The directional coupler is formed by coupling electromagnetically the microstrip lines 15, 16 at the stator 12 and the rotor 11. A signal transmission characteristic with a specific band width of >=10% is given in the directional coupler formed by the microstrip lines in this way. Thus, in transmitting a high frequency signal whose frequency is nearly 10GHz while being modulated with a reproduced video signal, the very wide signal transmission characteristic with several 100MHz is obtained.
Abstract translation: 目的：通过提供相互相对的微带线形成具有非常宽的信号传输特性的旋转耦合器，其一端由电阻终端器终止于转子和定子之间的相对面，并且发送/接收高频信号 在转子和定子的微带线之间。 构成：将相对微带15,16的长度L，即定子12的微带16的长度选择为高频信号的信号波长λ1的1/4的奇数倍，例如λ / 4。 通过在定子12和转子11处电磁耦合微带线15,16来形成定向耦合器。在这种情况下，由微带线形成的定向耦合器给出具有> = 10％的特定带宽的信号传输特性 办法。 因此，在利用再现的视频信号进行调制的同时，在发送频率接近10GHz的高频信号的情况下，获得具有数100MHz的非常宽的信号传输特性。
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公开(公告)号：JPS583329A
公开(公告)日：1983-01-10
申请号：JP10097781
申请日：1981-06-29
Applicant: SONY CORP
Inventor： OTOBE TAKASHI , KOMATSU YASUTOSHI , MURAKAMI YOSHIKAZU , YAMAGUCHI TAKESHI
Abstract: PURPOSE:To stabilize an oscillation frequency and to obtain a objective frequency at all times, by improving the reproducing characteristics of a circuit section frequency-discriminating the oscillation output of an oscillation circuit section and controlling the oscillation frequency based on discriminated output of frequency discrimination. CONSTITUTION:A frequency discriminating circuit 18 is coupled with an oscillation circuit 15 having a variable reactance element 17 varying the oscillation frequency with a microstrip line 2. The circuits 15 and 18 use in common a dielectric substance resonator 14, a storage and operation circuit 35 corresponds to an input frequency to the circuit 18 and a reference output is calculated according to a detected temperature of a temperature detection element 36. A discriminated output is detected from a load resistor 33 of the circuit 18, and the discriminated output and the reference output from the circuit 35 are compared at a comparator 40, and the reactance element 17 is controlled according to the result of comparison. The oscillation frequency of the oscillation circuit 14 is kept to an objective frequency independently of the temperature characteristic of the circuit 18.
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公开(公告)号：JPS5630305A
公开(公告)日：1981-03-26
申请号：JP10653079
申请日：1979-08-21
Applicant: SONY CORP
Inventor： KOMATSU YASUTOSHI , MURAKAMI YOSHIKAZU , OTOBE TAKASHI
Abstract: PURPOSE:To simplify constitution by providing a strip line with a resonator by electromagnetic coupling, by performing phase detection by phase information based upon a signal obtained through the coupled circuit, and then by obtaining the frequency discrimination signal of an input signal in consequence. CONSTITUTION:Microstrip line 17 supplied with high frequency signal Si is provided with coupled dielectric resonator 18 whose resonance frequency is equal to an objective center frequency. On the opposite side of line 17 to where resonator 18 is provided, auxiliary microstrip line 19 is provided in parallel to line 17 and the end of auxiliary line 19 at the input side of line 17 for signal Si is bent in a channel shape to form directional coupler 20. The other-side ends of lines 17 and 19 are bridged by lines 22a and 22b, where 90 deg. hybrid coupler 22 is formed.
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公开(公告)号：JPS55163901A
公开(公告)日：1980-12-20
申请号：JP7154179
申请日：1979-06-07
Applicant: SONY CORP
Inventor： OTOBE TAKASHI , KOMATSU YASUTOSHI , MURAKAMI YOSHIKAZU
Abstract: PURPOSE:To stabilize the oscillation frequency of an oscillator by coupling resonators with a strip line nearly at an interval an odd number greater than the wavelength of a target frequency. CONSTITUTION:Two dielectric resonators 13 and 14 are coupled with strip line 15 of length l, where target frequency f0 is 11.66GHz and resonance frequencies f01 and f02 of resonators 13 and 14 are 11.645 and 11.675GHz while coupling coefficients k1 and k2 are both 0.8 and Q1 and Q2 are both 300 with l=45.03mm.. Then, reflection coefficients S11 and S12 are checked by considering distance l between resonators 13 and 14 as a parameter, so that excellent characteristics can be obtained nearly with l=lambda/4(lambda is wavelength of signal of resonance frequency)X an odd number. Consequently, oscillation frequencies of oscillators can be stabilized.
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公开(公告)号：JPS5563105A
公开(公告)日：1980-05-13
申请号：JP13548478
申请日：1978-11-02
Applicant: SONY CORP
Inventor： OTOBE TAKASHI , KOMATSU YASUTOSHI
IPC: H03D7/00
Abstract: PURPOSE:To stabilize the oscillation frequency of the local oscillator in the frequency converter regardless of the temperature variation with a simple constitution in which just the common transmission line is used. CONSTITUTION:Parabola antenna 10 installed on the roof, etc. receives the wave of the SHF band sent from the broadcasting satellite. The received wave is supplied to frequency converter 1, converted into the UHF band signal, led indoors through common transmission line 6, receives signal process 31 via transformer 30 after amplification 29, and also supplied to frequency discriminator 7. The oscillation frequency control signal sent from discrimanator 7 is supplied to the gate of transistor 11 through line 6 and furthermore via filter 24 which blocks the passage of the AC current from AC power source 8. Thus the local oscillation frequency of converter 1 is controlled. In this case, discrimanator 7 is provided indoors to secure a high stability for the characteristics to the temperature variation. Accordingly, the local oscillation frequency can be held in a high accuracy and high stability although converter 1 may be installed outdoors.
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