© The Institution of Electrical Engineers
An acoustic-surface-wave memory is described, operating at a bit rate of 220 MHz and storage capacity of 1280 bit per recirculation loop. The transducers are coded using orthogonal pairs of Golay complementary sequences to obtain pulse-in pulse-out behaviour. The recirculation electronics uses standard commercial logic for both the amplifier and the WRITE, READ, INHIBIT and RECLOCKING functions.
References
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1)
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C.C. Tseng
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Signal multiplexing in surface-wave delay lines using orthogonal pairs of Golay's complementary sequences.
IEEE Trans.
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2)
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Shaw, H.J.: `Long time delays with surface waves', Presented at the ultrasonics symposium, 1971, Miami Beach, Fla., USA.
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3)
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J.M. Speiser ,
H.J. Whitehouse
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(1971)
Surface wave transducer array using transversal filter concept, Acoustic surface wave and acousto-optic devices.
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4)
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G.L. Heiter
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100 MHz 1000-bit ultrasonic digital delay-line time-compression store.
IEEE J. Solid-State Circuits
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19720244
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