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Patent Agency Ranking
公开(公告)号：US3886503A
公开(公告)日：1975-05-27
申请号：US43760274
申请日：1974-01-28
Applicant: THOMSON CSF
Inventor： BERT ALAIN , KANTOROWICZ GERARD
CPC classification number: H03H9/42 , G10K11/36 , G11C8/005 , G11C13/047 , H03H9/02645 , H03H9/02787
Abstract: A memory device including a piezoelectric delay line along the surface of which travels acoustic waves to be put into memory; an electron gun which sweeps the work surface of the line with a beam of electrons for recording or reading out the wave; and in which this work surface is covered at least in part by a layer of a highly resistive material.
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公开(公告)号：US3903486A
公开(公告)日：1975-09-02
申请号：US49185474
申请日：1974-07-25
Applicant: THOMSON CSF
Inventor： BERT ALAIN , KANTOROWICZ GERARD
CPC classification number: H03H9/44 , H03H9/02614 , H03H9/42 , H03H9/423
Abstract: In contrast to prior art delay devices using a piezoelectric crystal, wherein the input and output transducers are conductors applied to the piezoelectric crystal, the invention provides for at least one of these transducers (e.g., 123 in FIGS. 2, 3 and 5) to be partly made up of a system of regions (30) of an insulator (10) covering the crystal (2) and which are rendered conductive when bombarded by an electron beam (from gun 20). The invention will find application in the production of variable delays, and in particular to pulse compression and filtering.
Abstract translation: 与使用压电晶体的现有技术的延迟装置相比，其中输入和输出换能器是施加到压电晶体的导体，本发明提供了这些换能器中的至少一个（例如，图2,3和5中的123）到 部分地由覆盖晶体（2）的绝缘体（10）的区域（30）的系统构成，并且当被电子束（来自枪20）轰击时导致。
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公开(公告)号：US3886527A
公开(公告)日：1975-05-27
申请号：US42757273
申请日：1973-12-26
Applicant: THOMSON CSF
Inventor： BERT ALAIN , KANTOROWICZ GERARD
CPC classification number: G11C13/047 , G11C21/023 , G11C27/02
Abstract: A device for storing high frequency signals. High frequency electrical signals to be stored are applied to a piezoelectric delay line, where they are transduced into an acoustical wave traveling along a surface of the delay line. An electron beam sweeps this surface and interacts with the line and the wave stimulating emission of secondary electrons which form an electrostatic image of the acoustical waves along this surface, thereby recording the signal or wave. Read out is accomplished by a subsequent beam sweep of the surface. The beam write and readout sweeps may be identical, or different in time, direction, or variable, to compress/expand, reverse, or modulate the signal when read-out.
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公开(公告)号：US3916347A
公开(公告)日：1975-10-28
申请号：US49277774
申请日：1974-07-29
Applicant: THOMSON CSF
Inventor： BERT ALAIN , KANTOROWICZ GERARD
CPC classification number: H03H9/76 , H03H9/02685 , H03H9/0296
Abstract: An electromechanical directional coupler for high-frequency waves. Couplers of this kind comprise an input transducer and a number of output transducers disposed on a piezoelectric member in the path of the wave, and a number of conductive strips between the first transducer and the other transducers, so as to distribute among the output transducers the energy of the wave applied to the input transducer. According to the invention, the strips are obtained by conductivity induced by a beam of electrons which bombards the piezoelectric member or an electrically insulating member which covers member. The same device operates at various frequencies, the coupling ratios between the input transducer and the output transducers being adjustable. General application to high-frequency directional coupling.
Abstract translation: 一种用于高频波的机电定向耦合器。
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公开(公告)号：US3886529A
公开(公告)日：1975-05-27
申请号：US42757373
申请日：1973-12-26
Applicant: THOMSON CSF
Inventor： BERT ALAIN , KANTOROWICZ GERARD
CPC classification number: G11C13/047 , G11C21/023 , G11C27/02
Abstract: A piezoelectric substrate (1) exhibiting sufficient electric isolation is equipped at its both ends with an input transducer (2) and an output transducer (3). There is formed a permanent electrostatic image of the acoustic wave induced at the surface of substrate (1) by a given high frequency signal applied at the input transducer, by means of an electron beam (4), deflected toward the substrate so as to impinge on the the zone covered by the acoustic wave. Readout of this image is obtained by a second electron bombardment. Deflection of the beam (50) is achieved by means of a difference in potential applied between the electrode (5) and elements (60, 61, 62 . . . ). The device enables a train of signals applied at the input transducer to be addressed and coded.
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