公开(公告)号：US5475348A

公开(公告)日：1995-12-12

申请号：US211622

申请日：1994-04-18

申请人： Jean-Michel Hode ,  Jean Desbois ,  Marc Solal

发明人： Jean-Michel Hode ,  Jean Desbois ,  Marc Solal

IPC分类号： H03H9/00 ,  H03H9/02 ,  H03H9/145 ,  H03H9/64

CPC分类号： H03H9/0057 ,  H03H9/02653 ,  H03H9/0285 ,  H03H9/02905

摘要： It consists of several channels (V1, V2) in parallel, which exhibit an inter-transducer gap difference (2.sub.1 -4.sub.1 ; 2.sub.2 -4.sub.2) equal to an even multiple of the half-wavelength (.lambda.) at the central frequency, from one channel to the next, so as to cancel the delay line transfer function which corresponds to the direct path between transducers.

摘要翻译： PCT No.PCT / FR92 / 00827 Sec。 371日期1994年04月18日 102（e）1994年4月18日PCT PCT日期：1992年10月28日PCT公布。 公开号WO93 / 08641 日期为1993年04月29日。它由并行的多个通道（V1，V2）组成，它们具有等于半波长（λ）的偶数倍的换能器间差（21-41; 22-42） 在中心频率，从一个通道到下一个通道，以消除对应于换能器之间的直接路径的延迟线传递函数。

公开(公告)号：US5264751A

公开(公告)日：1993-11-23

申请号：US953290

申请日：1992-09-30

申请人： Pierre Dufilie ,  Jean Desbois

发明人： Pierre Dufilie ,  Jean Desbois

IPC分类号： H03H9/145 ,  H01L41/08

CPC分类号： H03H9/14505

摘要： In a transducer for surface waves, an alternating succession of transmitter cells and reflector cells is used. The transmitter cells transmit surface waves in phase opposition, leftwards and rightwards. The reflector cells have a reflection coefficient that is in phase opposition between the left-hand side and the right-hand side. The waves transmitted by the transmitter cells interfere with the waves reflected by the reflector cells, destructively in one direction and constructively in the other direction. This enables the making of transducers with spacings equal to .lambda./4 and .lambda./6 only.

摘要翻译： 在用于表面波的换能器中，使用交替连续的发射器单元和反射器单元。 发射机小区以相反方向向左和向右发射表面波。 反射器单元具有在左手侧和右手侧之间相位相反的反射系数。 由发射机发射的波与反射器单元反射的波干涉，在一个方向上相互破坏，另一个方向是建设性的。 这使得能够制造具有等于λ/ 4和λ/ 6的换能器。

公开(公告)号：US06344705B1

公开(公告)日：2002-02-05

申请号：US09601321

申请日：2000-08-07

申请人： Marc Solal ,  Jean Desbois

发明人： Marc Solal ,  Jean Desbois

IPC分类号： H03H964

CPC分类号： H03H9/0028 ,  H03H9/14532 ,  H03H9/14547 ,  H03H9/1455 ,  H03H9/14564

摘要： A filter with surface acoustic wave resonators using an equivalent electrical bridge structure to obtain a good form relationship, i.e., a relationship between the filter rejection band and its pass band. Bridge arms advantageously include the paralleling of several resonators, thereby not requiring additional electrical elements as in the background art which provides for the use of series-connected resonators. Particular implantation methods for preparing equivalent structures to paralleling several resonators are also disclosed.

摘要翻译： 具有使用等效电桥结构的表面声波谐振器的滤波器以获得良好的形式关系，即滤波器阻挡带和其通带之间的关系。 桥臂有利地包括几个谐振器的并联，从而不需要额外的电气元件，如提供串联连接的谐振器的背景技术。 还公开了用于制备并联多个谐振器的等效结构的特殊注入方法。

公开(公告)号：US4099206A

公开(公告)日：1978-07-04

申请号：US560925

申请日：1975-03-21

申请人： Jean Desbois ,  Pierre Tournois

发明人： Jean Desbois ,  Pierre Tournois

IPC分类号： G01R23/17 ,  C07D501/24 ,  G02B27/46 ,  G06K9/74 ,  H04N3/10 ,  H04N3/14 ,  H01J39/12 ,  H01L41/04

CPC分类号： H04N3/10

摘要： A piezoelectric substrate is subjected to the continuous excitations produced by a high-frequency electric field of fixed radian frequency .alpha. applied between its two opposite faces; high-frequency electrical pulses of radian frequency .alpha..sub.p are applied to the periodic network of conductors illuminated by the image; the electrical conductivity at the surface of the substrate at each point is made a function of the illumination directed towards said point, for example by the application of a photoconducting semi-conductor covering the network or by a substrate whose conductivity is directly modulated by the incident light. The non-linear interaction between the two substrate excitations induces a surface wave whose intensity is modulated by the luminous intensity and which is picked up by the transducers. Application with fixed .alpha..sub.p, to the point by point read-out of a linear optical image and with .alpha..sub.p = .alpha..sub.p (t) to the analysis of its spatial frequencies.

摘要翻译： 压电基板受到在其两个相对面之间施加的固定弧度频率α的高频电场产生的连续激发; 辐射频率αp的高频电脉冲应用于由图像照射的导体的周期性网络; 使每个点处的基板表面的电导率作为朝向所述点的照明的功能，例如通过施加覆盖网络的光电导体半导体或由电导率被事件直接调制的基板 光。 两个衬底激发之间的非线性相互作用引起表面波，其强度由发光强度调制，并由传感器拾取。 应用固定alpha p，逐点读出线性光学图像，并用alpha p = alpha p（t）分析其空间频率。

公开(公告)号：US4069507A

公开(公告)日：1978-01-17

申请号：US725242

申请日：1976-09-21

申请人： Philippe Defranould ,  Jean Desbois

发明人： Philippe Defranould ,  Jean Desbois

IPC分类号： H04N5/335 ,  G02B27/46 ,  G06T1/00 ,  H03H3/08 ,  H03H9/25 ,  H04N3/10 ,  H04N5/30

CPC分类号： H04N3/10

摘要： A device for reading two-dimensional optical images. It comprises a piezoelectric substrate on which two transducers transmit elastic waves in two separate directions, and a semiconductive and photoconductive layer arranged near the surface of the substrate, in which a nonlinear interaction occurs opposite the point where the two said directions converge. This point of convergence forms a reading point of the image which is projected onto the photoconductor, this point moving as a function of time along a straight line which forms an analysis line of said image.

摘要翻译： 用于读取二维光学图像的装置。 它包括一个压电基片，两个换能器在其上沿两个分开的方向传播弹性波，以及一个布置在基片表面附近的半导体和光电导层，其中非线性相互作用与两个所述方向相交的点相反。 该收敛点形成投射到光电导体上的图像的读取点，该点作为沿着形成所述图像的分析线的直线的时间的函数。

公开(公告)号：US3962673A

公开(公告)日：1976-06-08

申请号：US518987

申请日：1974-10-29

申请人： Jean Desbois ,  Pierre Tournois

发明人： Jean Desbois ,  Pierre Tournois

IPC分类号： G10L15/08 ,  G10K11/36 ,  G10L15/02 ,  H04N3/10 ,  H04B11/00

CPC分类号： H04N3/10 ,  G10K11/36

摘要： A system is provided for reading acoustic images such as those obtainable in an elastic medium as a result of the focusing of, or interference between, acoustic waves. The image analysing device comprises a substrate made of piezoelectric material which is provided on one face with an interdigital array and an electro-acoustic transducer.The system permits to read acoustic images formed at the free surface on the opposite face of the substrate or at a certain distance from its free surface in contact with an elastic propagation medium.

摘要翻译： 提供了一种系统，用于读取诸如由于声波的聚焦或干涉而在弹性介质中可获得的声像的声像。 图像分析装置包括由设置在具有叉指阵列的一个面上的压电材料制成的基板和电声换能器。

公开(公告)号：US06043726A

公开(公告)日：2000-03-28

申请号：US43570

申请日：1998-03-25

申请人： Marc Solal ,  Jean Desbois

发明人： Marc Solal ,  Jean Desbois

IPC分类号： H03H9/00 ,  H03H9/64

CPC分类号： H03H9/6463 ,  H03H9/0028 ,  H03H9/6479

摘要： A surface acoustic wave filter having three acoustic pathways. The first acoustic pathway is made up of a first transducer including a first and second bonding pad and is arranged between two reflectors to form a first resonator. The second acoustic pathway is made of a second transducer including a third and fourth bonding pad and is arranged between two reflectors to form a second resonator. A third acoustic pathway is made of a third transducer including a fifth and sixth bonding pad and is arranged between two reflectors to produce a third resonator. Each bonding pad of the transducers is linked to a specified potential.

摘要翻译： PCT No.PCT / FR96 / 01469 Sec。 371日期：1998年3月25日 102（e）1998年3月25日PCT PCT 1996年9月20日PCT公布。 公开号WO97 / 12441 日期1997年4月3日具有三个声学路径的表面声波滤波器。 第一声​​道由包括第一和第二接合焊盘的第一传感器构成，并且布置在两个反射器之间以形成第一谐振器。 第二声道由包括第三和第四接合焊盘的第二换能器构成，并且布置在两个反射器之间以形成第二谐振器。 第三声道由包括第五和第六接合焊盘的第三换能器构成，并且布置在两个反射器之间以产生第三谐振器。 换能器的每个接合焊盘连接到指定的电位。

公开(公告)号：US4916416A

公开(公告)日：1990-04-10

申请号：US167714

申请日：1988-03-14

申请人： Jean Desbois

发明人： Jean Desbois

IPC分类号： H03H9/44 ,  H03H3/08 ,  H03H9/64

CPC分类号： H03H9/44 ,  H03H9/02811

摘要： A method for the correction of surface wave devices consists of measuring the transfer function of an entirely finished surface wave device and then designing a surface wave corrective filter, the transfer function of which enables the correction of the transfer function of the preceding device. The method makes it possible to correct, in particular, RAC type dispersive filters.

摘要翻译： 用于校正表面波器件的方法包括测量完整表面波器件的传递函数，然后设计表面波校正滤波器，其传递函数能够校正前一器件的传递函数。 该方法可以特别校正RAC型分散滤波器。

公开(公告)号：US4146783A

公开(公告)日：1979-03-27

申请号：US832953

申请日：1977-09-13

申请人： Jean Desbois ,  Pierre Tournois

发明人： Jean Desbois ,  Pierre Tournois

IPC分类号： H04B10/00 ,  G02F1/01 ,  G08B5/00 ,  H04B10/02 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08 ,  H04B9/00

CPC分类号： H04J14/08 ,  H04J14/02

摘要： The system permits the multiplex telecommunication through the medium of an optical carrier wave. The system comprises a source of coherent light whose optical spectrum is dispersed in an optical device comprising a pair of diffraction gratings. A plurality of light modulators are disposed in the path of the spread out beams and controlled by electric signals which carry items of information. Output optical means collect the modulated spectral components.