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1. 发明授权

US4926146A Parallel-to-serial signal processor using surface acoustic waves 失效
标题翻译：使用表面声波的并行到串行信号处理器
公开(公告)号：US4926146A
公开(公告)日：1990-05-15
申请号：US161524
申请日：1988-05-09
申请人： Kuo-Hsuing Yen , Reynold S. Kagiwada , Robert B. Stokes , Marshall Y. Huang
发明人： Kuo-Hsuing Yen , Reynold S. Kagiwada , Robert B. Stokes , Marshall Y. Huang
IPC分类号： H03H9/02
CPC分类号： H03H9/02976
摘要： A surface acoustic wave (SAW) device for converting multiple parallel signals to a smaller number of serial signals. The device includes a piezoelectric substrate and a surface acoustic wave (SAW) input transducer for propagating periodic surface acoustic waves across the substrate. The parallel signals are input to the device through an array of acoustic charge transport (ACT) input transducers, which convert the signals into packets of electrical charge that are transported across the device with the surface acoustic waves generated at the SAW input transducer. An ACT output transducer converts the charge packets back into electrical signals, but in serial rather than parallel form. The converter of the invention can be usefully combined with a SAW channelizer or spectrum analyzer, to provide serial outputs from the analyzer.
摘要翻译：一种用于将多个并行信号转换为较少数量的串行信号的表面声波（SAW）装置。该装置包括压电基片和表面声波（SAW）输入换能器，用于在基片上传播周期性表面声波。并行信号通过声电荷传输（ACT）输入传感器的阵列输入到器件，其将信号转换成跨过器件传输的电荷分组，并在SAW输入传感器处产生声表面波。 ACT输出传感器将电荷数据包转换成电信号，但是以串行方式而不是并行形式转换。本发明的转换器可以有效地与SAW通道器或频谱分析仪组合，以提供来自分析仪的串行输出。

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