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    • 1. 发明授权
    • Surface wave devices for signal processing
    • 用于信号处理的表面波装置
    • US3701147A
    • 1972-10-24
    • US11216571
    • 1971-02-03
    • US NAVY
    • WHITEHOUSE HARPER JOHN
    • G06G7/195G11C21/02H03B5/32H03B7/00H03H9/02H03H9/42H03H9/64H03H9/76H03K13/02
    • H03H9/02834G06G7/195G11C21/023H03B5/32H03B5/326H03B7/00H03H9/42
    • A distributed-transducer surface wave device for signal processing of the type which comprises a crystal substrate upon which is disposed at least one transducer set, including an input transducer adapted for connection to an input electrical signal and an output transducer, each transducer including at least a pair of interdigitated electrodes, the application of an electrical signal to the input transducer causing surface wave propagation on the surface of the crystal substrate, the electrodes of the transducers being aligned in a direction perpendicular to the direction of wave propagation, wherein the interdigitations of the electrodes are generally coded, for example, according to a Barker code. The surface wave device further comprises a logic decision circuit having three input connections: (1) a first input connected to the output transducer; (2) a second adapted for connection to a clock sync source; and (3) a third adapted for connection to a source of binary signals; the output of the logic decision circuit being connected to the input transducer. A function of the logic devision circuit is to enable an incoming pulse from the binary signal source, if present, to be transmitted to the input transducer, otherwise to enable pulses from the output transducer to be circulated through the transducer set, all pulses being clocked by signals from the clock sync source. One of the main functions of the acoustic wave devices of this invention is to serve as a delay line for the propagating surface wave.
    • 一种用于信号处理的分布式换能器表面波装置,其包括晶体基板,在其上设置有至少一个换能器组,其包括适于连接到输入电信号的输入换能器和输出换能器,每个换能器至少包括 一对交叉电极,将电信号施加到输入换能器,引起在晶体衬底表面上的表面波传播,换能器的电极在垂直于波传播方向的方向上对齐,其中, 电极通常例如根据巴克码进行编码。 所述表面波装置还包括具有三个输入连接的逻辑判定电路:(1)连接到所述输出换能器的第一输入; (2)适于连接到时钟同步源的第二个; 和(3)适于连接到二进制信号源的第三个; 逻辑判定电路的输出连接到输入换能器。 逻辑设计电路的功能是使得来自二进制信号源的输入脉冲(如果存在)能够传输到输入换能器,否则使来自输出换能器的脉冲能够通过换能器组循环,所有脉冲被计时 通过来自时钟同步源的信号。 本发明的声波装置的主要功能之一是作为传播表面波的延迟线。
    • 2. 发明授权
    • Piezoelectric acoustic surface wave device utilizing an amorphous semiconductive sensing material
    • 使用无定形半导体感应材料的压电声波表面波装置
    • US3648081A
    • 1972-03-07
    • US3648081D
    • 1970-06-30
    • IBM
    • LEAN ERIC GSADAGOPAN VARADACHARITSENG SAMUEL C-C
    • G11C21/02H03H9/42H03K5/15H01V7/00
    • G11C21/023H03H9/423H03K5/15046
    • An integrated acoustic surface wave device is provided by this disclosure wherein a piezoelectric field associated with an acoustic surface wave causes a material adjacent to the surface to transform from one physical state to another physical state. The changes in state due to the presence of the piezoelectric wave are utilized to detect, amplify and store information. The presence of the piezoelectric wave controls external physical quantities, e.g., voltage and current, for information processing and storage. In particular, an amorphous semiconducting material is deposited on the surface of a piezoelectric surface wave acoustic delay line at a location where the presence of the traversing piezoelectric wave is to be detected. Contact electrodes are provided on the amorphous material and are connected to an external electrical circuit wherein there is a voltage source and a load means. The voltage source provides an electric field in the amorphous material of a value below that necessary to achieve the threshold value for switching the material from a high-voltage and low-current state to a highcurrent and low-voltage state. In this manner, the piezoelectric field of the acoustic surface wave which transiently appears at the amorphous material when added to the externally applied electric field causes it to switch states and thereby gives rise to a pulse indication in the external electrical circuit. Accordingly, an integrated apparatus in accordance with this disclosure includes a piezoelectric surface wave delay line and an amorphous semiconductor film. A transducer on the surface of the piezoelectric crystal generates piezoelectric surface waves therein, and a local receiving transducer which serves as the electrodes for the amorphous semiconductor film intercepts the piezoelectric surface wave. The electric field associated with the surface wave supplements a bias electric field at the amorphous semiconductor film and causes the states thereof to switch and provides an indication of the presence of the piezoelectric wave in the external electric circuit connected to the amorphous film.
    • 通过本公开提供了一种集成的声表面波装置,其中与声表面波相关联的压电场使得与表面相邻的材料从一个物理状态转变到另一个物理状态。 由于存在压电波而导致的状态变化被用于检测,放大和存储信息。 压电波的存在控制用于信息处理和存储的外部物理量,例如电压和电流。 特别地,非晶半导体材料沉积在压电表面波声延迟线的表面上,在要检测的横向压电波的存在的位置处。 接触电极设置在非晶材料上并且连接到外部电路,其中存在电压源和负载装置。 电压源在非晶材料中提供的电场值低于实现将材料从高电压和低电流状态切换到高电流和低电压状态的阈值所需的电压值。 以这种方式,当加到外部施加的电场时,在非晶材料瞬时出现的声表面波的压电场导致其转换状态,从而在外部电路中产生脉冲指示。
    • 6. 发明授权
    • Acoustic delay line memory system
    • 声音延迟线记忆系统
    • US3668662A
    • 1972-06-06
    • US3668662D
    • 1970-10-20
    • HUGHES AIRCRAFT CO
    • ZIMMERMAN ROBERT LSCHWEITZER BERNARD PGARVIN HUGH LPEDINOFF MELVIN EWALDNER MICHAEL
    • G11C21/02H03H9/42G11C21/00
    • H03H9/42G11C21/023
    • An information storage system utilizing an acoustic medium having its surface subdivided into a plurality of individually isolated acoustic transmission channels upon which a plurality of transmit and receive transducers are selectively placed. Each respective transmit transducer is electrically excited by a signal containing information from at least a preselected one of a plurality of data sources in order to cause a resultant acoustic stress wave to be propagated upon the surface of the medium within the associated acoustic transmission channel until the resultant stress wave is converted by an associated receive transducer into a plurality of charges which, in turn, are applied to a data source which, on command, either selects a new data to be stored or the old data that was circulated to be reconstituted into a transmit format to be recirculated within the associated acoustic transmission channel of the system.
    • 一种利用声学介质的信息存储系统,该声学介质的表面被细分为多个单独隔离的声学传播通道,多个发射和接收换能器选择在该传播通道上。 每个相应的发射换能器由包含来自多个数据源中的至少预选的一个数据源的信息的信号电激励,以使得所产生的声应力波在相关的声传输通道内的介质的表面上传播,直到 合成的应力波由相关的接收换能器转换成多个电荷,这些电荷又被施加到数据源,数据源根据命令选择要被存储的新数据或被重新构建成循环的旧数据 在系统的相关声传播通道内循环的发送格式。
    • 7. 发明申请
    • PIEZOELECTRIC AND LOGIC INTEGRATED DELAY LINE MEMORY
    • 压电和逻辑集成延迟线存储器
    • WO2015138058A2
    • 2015-09-17
    • PCT/US2015/014324
    • 2015-02-03
    • CORNELL UNIVERSITY
    • LAL, AmitKUO, Justin, C.
    • G11C21/023B06B1/0215B06B2201/20B06B2201/55B06B2201/70G11C7/16G11C19/00G11C2013/0095
    • Delay line memory device, systems and methods are disclosed. In one aspect, a delay line memory device includes a substrate; an electronic unit disposed on the substrate and operable to receive, amplify, and/or synchronize data signals into a bit stream to be transmitted as acoustic pulses carrying data stored in the delay line memory device; a first and a second piezoelectric transducer disposed on the substrate and in communication with the electronic unit, in which the first piezoelectric transducer is operable to transmit the data signals to the acoustic pulses that carry the data through the bulk of the substrate, and the second piezoelectric transducer is operable to transduce the received acoustic pulses to intermediate electrical signals containing the data, which are transferred to the electronic unit via an electrical interconnect to cause refresh of the data in the delay line memory device.
    • 延迟线存储器件,系统和方法被公开。 一方面,延迟线存储器件包括衬底; 电子单元,其设置在所述基板上并且可操作以将数据信号接收,放大和/或同步到作为携带存储在所述延迟线存储器装置中的数据的声脉冲发送的比特流; 第一和第二压电换能器,其设置在所述基板上并与所述电子单元连通,其中所述第一压电换能器可操作以将所述数据信号传送到通过所述基板的所述主体承载所述数据的声脉冲, 压电传感器可操作以将接收到的声脉冲转换成包含数据的中间电信号,其经由电互连传送到电子单元以引起延迟线存储器件中的数据刷新。
    • 8. 发明申请
    • PIEZOELECTRIC AND LOGIC INTEGRATED DELAY LINE MEMORY
    • 压电和逻辑集成延迟线存储器
    • WO2015138058A3
    • 2015-12-30
    • PCT/US2015014324
    • 2015-02-03
    • UNIV CORNELL
    • LAL AMITKUO JUSTIN C
    • G11C21/02
    • G11C21/023B06B1/0215B06B2201/20B06B2201/55B06B2201/70G11C7/16G11C19/00G11C2013/0095
    • Delay line memory device, systems and methods are disclosed. In one aspect, a delay line memory device includes a substrate; an electronic unit disposed on the substrate and operable to receive, amplify, and/or synchronize data signals into a bit stream to be transmitted as acoustic pulses carrying data stored in the delay line memory device; a first and a second piezoelectric transducer disposed on the substrate and in communication with the electronic unit, in which the first piezoelectric transducer is operable to transmit the data signals to the acoustic pulses that carry the data through the bulk of the substrate, and the second piezoelectric transducer is operable to transduce the received acoustic pulses to intermediate electrical signals containing the data, which are transferred to the electronic unit via an electrical interconnect to cause refresh of the data in the delay line memory device.
    • 延迟线存储器装置,系统和方法被公开。 在一个方面,延迟线存储器装置包括衬底; 电子单元,其设置在所述基板上,并且可操作以将数据信号接收,放大和/或同步成比特流,以作为传送存储在所述延迟线存储器设备中的数据的声脉冲发送; 第一压电换能器和第二压电换能器,设置在所述基板上并与所述电子单元通信,其中所述第一压电换能器可操作以将所述数据信号传输到承载所述数据通过所述基板本体的所述声学脉冲,并且所述第二 压电换能器可操作地将所接收的声脉冲转换成包含数据的中间电信号,所述数据经由电互连被传送到电子单元以引起延迟线存储器装置中的数据的刷新。