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1. 发明授权

US4672339A Electric filter employing acoustic waves 失效
标题翻译：采用声波的滤波器
公开(公告)号：US4672339A
公开(公告)日：1987-06-09
申请号：US860170
申请日：1986-05-06
申请人： Peter Zibis , Gerd Riha , Richard Veith
发明人： Peter Zibis , Gerd Riha , Richard Veith
IPC分类号： H03H3/08 , H03H9/02 , H03H9/145 , H03H9/42 , H03H9/64
CPC分类号： H03H9/02874 , H03H9/14585 , H03H9/02629 , H03H9/02637
摘要： A surface wave filter (1, 11, 21, 31, 41) having a shielding structure (13, 23, 33, 43, 53) arranged between the inter-digital, asymmetrically operating structures (2, 3), which encompasses two such sub-structures (14, 24, 34, 44, 44a) and/or (15, 25, 35, 45, 35a), which are individually connected with the finger structures of the adjacent transducer structure (2 and/or 3) that are at reference ground potential.
摘要翻译：具有布置在所述数字间非对称操作结构（2,3）之间的屏蔽结构（13,23,33,43,53）的表面波滤波器（1,11,21,31,41），其包含两个这样的分别与相邻换能器结构（2和/或3）的手指结构单独连接的子结构（14,24,34,44,44a）和/或（15,25,35,45,35a），其中是参考地电位。

2. 发明授权

US4521751A Electronic component functioning with reflected acoustic waves 失效
标题翻译：具有反射声波功能的电子元件
公开(公告)号：US4521751A
公开(公告)日：1985-06-04
申请号：US520451
申请日：1983-08-04
申请人： Gerd Riha , Richard Veith
发明人： Gerd Riha , Richard Veith
IPC分类号： H03H9/42 , H03H3/08 , H03H9/02 , H03H9/25 , H03H9/64
CPC分类号： H03H9/02543 , H03H9/02842
摘要： In an electronic component having reflecting structures on a substrate body and functioning with reflected acoustic waves traveling thereon, at least one longitudinal lateral edge of the substrate body is aligned at an angle .delta. deviation from a direction parallel relative to an acoustic wave emitted by an input transducer. The dimension of the angle .delta. depends on the arrangement of an output transducer. This construction minimizes the appearance of spurious signals.
摘要翻译：在具有衬底主体上的反射结构并且在其上传播的反射声波起作用的电子部件中，衬底主体的至少一个纵向侧边缘与从输入端发射的声波平行的方向成角度偏差传感器。角度的尺寸取决于输出传感器的布置。这种结构使杂散信号的外观最小化。

3. 发明授权

US4703290A Acoustic wave filter 失效
标题翻译：声波滤波器
公开(公告)号：US4703290A
公开(公告)日：1987-10-27
申请号：US787111
申请日：1985-10-15
申请人： Peter Zibis , Richard Veith
发明人： Peter Zibis , Richard Veith
IPC分类号： H03H3/08 , H03H9/64
CPC分类号： H03H9/6426
摘要： An acoustic wave filter comprising a piezoelectric substrate body upon which at least two digital structures are formed and which comprise input and output transducers and at least one further digital structure and wherein the filter digital structure has a center frequency of f.sub.2 and wherein the pass band of said two digital structures is at least twice as broad banded as said further digital structure and where the center frequencies f.sub.1 and f.sub.2 of the two digital structures are shifted relative to each other and relative to the center frequency f.sub.2 of the further digital structure.
摘要翻译：一种声波滤波器，包括压电基片主体，在其上形成至少两个数字结构，并包括输入和输出换能器以及至少一个另外的数字结构，其中滤波器数字结构的中心频率为f2，其中通带所述两个数字结构至少是所述另外的数字结构的宽带的两倍，并且其中两个数字结构的中心频率f1和f2相对于彼此而相对于另外的数字结构的中心频率f2偏移。

4. 发明授权

US4673901A Electrical filter operating with acoustic waves 失效
标题翻译：电声滤波器用声波操作
公开(公告)号：US4673901A
公开(公告)日：1987-06-16
申请号：US788877
申请日：1985-10-18
申请人： Ekkehard Ehrmann-Falkenau , Richard Veith , Wolfgang Till
发明人： Ekkehard Ehrmann-Falkenau , Richard Veith , Wolfgang Till
IPC分类号： H03H9/145 , H03H9/64
CPC分类号： H03H9/64 , H03H9/1452
摘要： A surface wave filter having an interdigital structure in which last active fingers of a first comb structure, which is to be connected to ground, extend as close as possible to a busbar of an opposite comb structure. Interference signals based on the discontinuity of the end of the interdigital structure are eliminated.
摘要翻译：具有叉指结构的表面波滤波器，其中要连接到地面的第一梳状结构的最后活动指状物尽可能靠近相对梳状结构的母线延伸。消除了基于叉指结构的不连续性的干扰信号。

5. 发明授权

US4427954A Pulse compression filter designed as a dispersive delay line 失效
标题翻译：脉冲压缩滤波器设计为色散延迟线
公开(公告)号：US4427954A
公开(公告)日：1984-01-24
申请号：US377466
申请日：1982-05-12
申请人： Richard Veith , Helmut Stocker
发明人： Richard Veith , Helmut Stocker
IPC分类号： H03H9/42 , G01S13/28 , H03H3/08 , H03H9/145 , H03H9/44 , H03H9/64
CPC分类号： H03H9/6406 , H03H9/145 , H03H9/44
摘要： A pulse compression filter designed as a dispersive delay line functions with acoustic waves having a mean wavelength .lambda..sub.o in the filter. At least one input/output transducer or at least one reflector arrangement is provided with a plurality of electrode respectively reflector fingers distributed on a substrate in accordance with a prescribed transfer function which has a given bandwidth and whose Fourier transform has a given time duration T. Said fingers are divided into a plurality of N finger groups designed identical to one another with respect to the number fingers n and corresponding finger spacings of corresponding fingers. Each finger group has a length in a propagation direction of the acoustic wave in the filter which is at least equal to the mean wavelength .lambda..sub.o. Center spacings of adjacent finger groups from one another are non-equidistant in accordance with the prescribed transfer function. The plurality N of the finger groups is greater than the time bandwidth duration product (T.multidot.B).
摘要翻译：设计为色散延迟线的脉冲压缩滤波器在滤波器中具有平均波长λo的声波。至少一个输入/输出换能器或至少一个反射器装置设置有分别在基板上的多个电极分别为反射器指状物，根据具有给定带宽的规定的传递函数，并且其傅立叶变换具有给定的持续时间T。所述手指被分成相对于数字手指n和相应手指的对应手指间隔彼此相同设计的多个N个手指组。每个手指组在滤波器中的声波的传播方向上的长度至少等于平均波长λo。相邻手指组的中心间距根据规定的传递函数是不等距的。多个N个手指组大于时间带宽持续时间乘积（TxB）。

6. 发明授权

US3943387A Process for making a piezoelectric body 失效
标题翻译：制造压电体的方法
公开(公告)号：US3943387A
公开(公告)日：1976-03-09
申请号：US455592
申请日：1974-03-28
申请人： Richard Veith
发明人： Richard Veith
IPC分类号： H01L41/193 , H01G7/02 , H01L41/24 , H01L41/04 , H04R17/00
CPC分类号： H01G7/028 , Y10T29/42
摘要： Process for the production of a piezoelectric body which contains a ferroelectric material which may be polarized in an aligned, permanent fashion and also contains a bonding material, the process comprises mixing a bonding material selected so that at least in a temperature range below the Curie temperature of the ferroelectric material, it has a specific electric conductivity .sigma..sub.B > E.sub.C .times. .sigma..sub.K /E.sub.B, where .sigma..sub.K is the specific conductivity of the ferroelectric material, E.sub.C is the coercivity field strength of the ferroelectric material, and E.sub.B is the electric breakdown field strength of the bonding material with a granular ferroelectric material having a known Curie temperature, forming a desired body shape from such mixture, heating the resultant body to a temperature at least sufficient for the bonding material to exhibit its specific conductivity and applying an electric voltage of sufficient intensity to the body to produce a permanent polarization alignment in the ferroelectric material within such body.
摘要翻译：一种用于制造压电体的方法，所述压电体包含铁电材料，所述铁电材料可以以对准的永久性方式极化，并且还包含接合材料，所述方法包括将选择的粘合材料混合，使得至少在低于居里温度的铁电材料，其具有比电导率σB> EC×sigma K / EB，其中σK是铁电材料的比电导率，EC是铁电材料的矫顽力场强，EB是电击穿使用具有已知居里温度的粒状铁电体材料的接合材料的场强，从这种混合物形成所需的体形，将所得体加热到至少足以使接合材料表现出其比电导率和施加电压的温度具有足够的强度以在身体产生在铁电选择器中的永久极化取向这样的身体里面的物质。

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