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31. 发明授权

US4162451A MESFET-device surface-wave-device channel selector 失效
标题翻译： MESFET器件表面波器件通道选择器
公开(公告)号：US4162451A
公开(公告)日：1979-07-24
申请号：US813202
申请日：1977-07-05
申请人： Darrell L. Ash
发明人： Darrell L. Ash
IPC分类号： H03B5/18 , H03B5/32 , H03B5/36 , H03D7/12 , H03D7/16 , H03H9/145 , H03H9/64 , H03J5/02 , H03J7/08 , H04B1/16
CPC分类号： H03J5/02 , H03B5/1847 , H03B5/326 , H03D7/125 , H03D7/161 , H03H9/14508 , H03H9/6403 , H03J5/0254 , H03J7/08 , H03B5/362
摘要： An improved channel selector for a television receiver includes a metal semiconductor field effect transistor, i.e. MESFET mixer in combination with an acoustic surface wave device filter. The MESFET mixer simultaneously receives a plurality of channels and mixing signals of a selectable frequency, and in response thereto frequency shifts selectable channels to a predetermined center frequency. The MESFET mixer has almost perfect square law characteristics, and accordingly introduces extremely small distortion into the system. The acoustic surface wave device filter has an input coupled to the output of the MESFET mixer. The surface wave device filter provides essentially all of the channel selectivity of the receiver.
摘要翻译：用于电视接收机的改进的频道选择器包括金属半导体场效应晶体管，即与声表面波器件滤波器组合的MESFET混频器。 MESFET混频器同时接收多个信道和混合可选频率的信号，并且响应于此，可将频率移位到预定的中心频率。 MESFET混频器具有几乎完美的平方律特性，因此在系统中引入极小的失真。声表面波器件滤波器具有耦合到MESFET混频器的输出的输入。表面波器件滤波器基本上提供接收器的所有通道选择性。

32. 发明授权

US3800248A Unidirectional surface wave transducer device 失效
标题翻译：单向表面波导传感器
公开(公告)号：US3800248A
公开(公告)日：1974-03-26
申请号：US30244072
申请日：1972-10-31
申请人： US NAVY
发明人： SPEISER J , WHITEHOUSE H
IPC分类号： H03H9/02 , H03H9/145 , H03H9/26 , H03H9/30
CPC分类号： H03H9/14505 , H03H9/02818 , H03H9/14508
摘要： A set of interdigitated surface wave transducers comprising a launch transducer which transmits an acoustic wave in one direction only, rather than the usual two opposite directions, and a receiving transducer which receives an acoustic signal from one direction only, the direction from the launch transducer. An auxiliary delay line may also be used. The set of transducers may be configured in any of three different arrangements: (1) A transversal filter where odd-numbered taps are driven directly and even-numbered taps are driven by the auxiliary delay line, for example, with a delay corresponding to the transit time across a unit spacing between adjacent interdigitations. (2) A delay line comprising two pairs of transducers, using two propagation paths, one path for each pair, each pair including a launch and receive transducer, one pair of transducers being configured to correspond to one member of a Golay complementary pair, the other pair of transducers being configured to correspond to the other member of a Golay complementary pair. (3) A two-path transversal filter which combines the main features of implementations (1) and (2).
摘要翻译：一组交叉表面波换能器，其包括仅在一个方向上而不是通常的两个相反方向传播声波的发射换能器，以及仅从一个方向接收来自发射换能器的方向的声学信号的接收换能器。也可以使用辅助延迟线。传感器组可以被配置为以下三种不同的布置：

33. 发明专利

JPS58213519A Elastic surface wave device 失效
标题翻译：弹性表面波装置
公开(公告)号：JPS58213519A
公开(公告)日：1983-12-12
申请号：JP9617682
申请日：1982-06-07
申请人： Clarion Co Ltd
发明人： MINAGAWA SHIYOUICHI , OKAMOTO TAKESHI , NIITSUMA TERUO
IPC分类号： H03H3/08 , H03H9/145 , H03H9/64
CPC分类号： H03H9/0222 , H03H9/14508 , H03H9/64
摘要： PURPOSE: To reduce the reflection of elastic surface waves due to mechanical reflection by constituting an upper electrode opposed to a lower electrode through a piezo-electric thin film by the 1st and 2nd double electrodes.
CONSTITUTION: When signal voltage is applied between the upper electrode consisting of the 1st and 2nd double electrodes 10A, 11A and the lower electrode 6, an electric field is formed between said electrodes 10A, 11A and 6, so that elastic surface waves S
1 , S
2 having parallel wave surfaces in the longitudinal direction of a transducer are excited from respective electrodes 10A, 11A. Since a comb electrode constituting the transducer consists of the double electrodes, 10A, 10B, 11A, 11B, it is not influenced by mechanical reflection. In addition, the prevention of short circuit and the improvement of production yield, which are the merits of a single phase transducer, can be effectively attained as they are.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：通过由第一和第二双电极通过压电薄膜构成与下电极相对的上电极，减少机械反射引起的弹性表面波的反射。构成：当在由第1和第2双电极10A，11A和下电极6组成的上电极之间施加信号电压时，在所述电极10A，11A和6之间形成电场，使得弹性表面波S1，S2 在各个电极10A，11A上激发在换能器的纵向上具有平行的波面。由于构成换能器的梳状电极由双电极10A，10B，11A，11B组成，所以不受机械反射的影响。此外，可以有效地实现防止短路和提高生产率，这是单相换能器的优点。

34. 发明专利

JPS5746520A Device for supplying multiple filtered outputs 失效
标题翻译：用于提供多个过滤输出的设备
公开(公告)号：JPS5746520A
公开(公告)日：1982-03-17
申请号：JP10350581
申请日：1981-07-03
申请人： Westinghouse Electric Corp
发明人： ROBAATO ABERII MUUA
IPC分类号： H03B5/30 , H03H3/08 , H03H9/145 , H03H9/64 , H03H9/72
CPC分类号： H03H9/72 , H03H9/14505 , H03H9/14508 , H03H9/6406

35. 发明专利

JPS598418A Surface acoustic wave device 失效
标题翻译：表面声波设备
公开(公告)号：JPS598418A
公开(公告)日：1984-01-17
申请号：JP11806082
申请日：1982-07-06
申请人： Clarion Co Ltd
发明人： OKAMOTO TAKESHI , MINAGAWA SHIYOUICHI , NIITSUMA TERUO
IPC分类号： H03H3/08 , H03H9/02 , H03H9/145
CPC分类号： H03H9/14505 , H03H9/02574 , H03H9/14508
摘要： PURPOSE: To attain a unidirectional transducer with an improved yield, by constituting an upper electrode provided on a piezoelectric thin film on an elastic substance substrate with plural electrodes arranged separately in a direction.
CONSTITUTION: A lower electrode comprising a rectangular electrode 14 is provided on the elastic substance substrate 12 of a piezoelectric substrate 1 having a piezoelectric thin film 13 on the elastic substrate 12 and an upper electrode comprising comb electrodes 15A∼15C is provided on the piezoelectric thin film 13 to constitute a so-called single phased transducer. Since the electrode width W and the interval L are widened by twice or four times in comparison with a connertional normal electrode because those of the comb electrodes 15A∼15C are λ
0 /2, the accuracy of the processing technology is relaxed and the yield is improved. Thus, the cost reduction is attained and the manufacture of high frequency transducers is made easy.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了获得具有提高产量的单向换能器，通过在弹性物质基板上形成设置在压电薄膜上的上电极，其中多个电极在方向上分开设置。构成：在弹性基板12上具有压电薄膜13的压电基板1的弹性体基板12上设置包括矩形电极14的下电极，在压电薄片上设置包括梳状电极15A-15C的上部电极薄膜13构成所谓的单相变换器。由于电极宽度W和间隔L与连接的正常电极相比加宽了两倍或四倍，因为梳状电极15A-15C的宽度为λ0/ 2，因此放松了处理技术的精度并提高了产量。因此，实现了成本降低，并且使得高频换能器的制造变得容易。

36. 发明专利

JPS5738017A Unidirectional saw energizing device 失效
标题翻译：独立的声表面积能量装置
公开(公告)号：JPS5738017A
公开(公告)日：1982-03-02
申请号：JP11327280
申请日：1980-08-18
申请人： Fujitsu General Ltd
发明人： KAERIYAMA TOSHIYUKI
IPC分类号： H03H3/08 , H03H9/145
CPC分类号： H03H9/14508
摘要： PURPOSE:To achieve a unidirectional transducer with less loss, by locating electrodes at both sides of piezoelectric thin film. CONSTITUTION:A weighted lower electrode pattern 12a is formed on a medium base plate 10 made of glass or the like. An oscillation piezoelectric thin film 11 made of zinc oxide is formed on the lower electrode pattern 12a and an upper electrode pattern 12b is formed on a thin film 11. The lower and upper electrode patterns 12a, 12b are formed shifted by lambda/4. The oscillation and phase characteristics can be set arbitrarily by suitably setting an envelope (chain line) which represents the depth of meshing of the electrodes 12a, 12b. A 90 deg. phase shifter 9 is provided to energize elastic surfae waves with this electrode pattern and the output of the phase shifter 9 is applied to the upper electrode 12a.
摘要翻译：目的：通过在压电薄膜两侧定位电极，实现损耗较小的单向换能器。构成：在由玻璃等制成的介质基板10上形成加权的下部电极图案12a。在下部电极图案12a上形成由氧化锌构成的振荡压电薄膜11，在薄膜11上形成上部电极图案12b。下部电极图案12a和上部电极图案12b以λ/ 4移动。振荡和相位特性可以通过适当地设定表示电极12a，12b的啮合深度的信封（链线）来任意设定。 A 90度提供移相器9以使用该电极图案激励弹性表面波，并且将移相器9的输出施加到上电极12a。

37. 发明专利

JPS59214314A Elastic surface wave filter 失效
标题翻译：弹性表面波过滤器
公开(公告)号：JPS59214314A
公开(公告)日：1984-12-04
申请号：JP8822683
申请日：1983-05-19
申请人： Japan Radio Co Ltd
发明人： TAKEUCHI YOSHIHIKO , NAKAMURA KENJI
IPC分类号： H03H9/145 , H03H3/08 , H03H9/02 , H03H9/25 , H03H9/64
CPC分类号： H03H9/02629 , H03H9/02755 , H03H9/02795 , H03H9/14508
摘要： PURPOSE:To obtain a filter which has small insertion loss and superior filter characteristic characteristics by driving unidirectional electrodes arranged on both sides of a bilateral transducer without using any phase shifter. CONSTITUTION:Unidirectional transducers 18-21 are connected not through a phase shifter so that elastic surface waves 4 and 5 are radiated in one direction of elastic surface waves 16 and 17, respectively. The elastic surface waves 4 and 5 are converted into electric signals by unidirectional transducers 18 and 19, and they are divided into three-phase signals, which are connected to unidirectional transducers 20 and 21. The signals are converted by the unidirectional transducers 20 and 21 into surface waves 16 and 17, which are each radiated in one direction. The elastic surfce waves 16 and 17 are converted into an electric signal by being superposed in in-phase relation by a reed screen type transducer 3. Therefore, the insertion loss is reduced logically to 0dB and weighting is facilitated.
摘要翻译：目的：通过驱动布置在双侧换能器两侧的单向电极而不使用任何移相器，获得插入损耗小，滤波特性特性优异的滤波器。构成：单向传感器18-21不通过移相器连接，使得弹性表面波4和5分别沿弹性表面波16和17的一个方向辐射。弹性表面波4和5由单向传感器18和19转换为电信号，并将它们分成三相信号，其连接到单向换能器20和21.信号由单向换能器20和21转换分别在一个方向上辐射的表面波16和17。弹性表面波16和17通过由筘屏式换能器3以同相关系叠加而转换为电信号。因此，插入损耗在逻辑上减小到0dB，并且加速是有利的。

38. 发明专利

JPS5738018A Unidirectional saw energizing device 失效
标题翻译：独立的声表面积能量装置
公开(公告)号：JPS5738018A
公开(公告)日：1982-03-02
申请号：JP11327380
申请日：1980-08-18
申请人： Fujitsu General Ltd
发明人： KAERIYAMA TOSHIYUKI
IPC分类号： H03H3/08 , H03H9/145
CPC分类号： H03H9/14508
摘要： PURPOSE:To avoid crossing of electrode, by providing two electrodes out of three per one section on one side of piezoelectric thin film and another one on another side of piezoelectric thin film, in a unidirectional elastic surface wave energizing divice using a 120 deg. phase difference reed screen electrode. CONSTITUTION:On a medium base of glass 10, reed screen electrodes 1211, 1212... of 0 deg. and reed screen electrodes 1221, 1222... of 120 deg. are formed. A piezoelectric thin film 11 made of zinc oxide is formed with sputtering on it. The film thickness of the thin film 11 is taken as 3% of elastic surface wave filter wavelength. Reed screen electrodes 1231, 1232... of 240 deg. are formed on the upper surface of the film 11. When the reed screen electrodes are coupled to a 120 deg. phase shifter 6 which produces an alternative electric field with 120 deg. phase difference, unidirectional energizing can be made.
摘要翻译：目的：为了避免电极交叉，通过在压电薄膜的一侧上每隔一段提供两个电极，并且在压电薄膜的另一侧上提供两个电极，在单向弹性表面波激励器中使用120度。相位差簧片屏电极。构成：在玻璃10的中等基座上，为0度的筘片1211,1212 ...。和120度的苇屏幕电极1221,1222 ...。形成。在其上形成由氧化锌制成的压电薄膜11。薄膜11的膜厚为弹性面波长波长的3％。 240度的干簧筛屏电极1231,1232 ... 形成在膜11的上表面上。当苇屏幕电极耦合到120度时，移相器6产生120度的替代电场。相位差，可以进行单向通电。

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