Accession Number : ADD001718

Title :   Acoustic Devices for Time-Multiplexed Communication.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Alsup,James M

Report Date : 10 Jun 1975

Pagination or Media Count : 9

Abstract : The patent relates to a single, matched-filter pair used to encode or decode two independent, time-multiplexed signals. The matched-filter pair consists of a dual-channel acoustic delay line such that one channel has a distributed tapping structure T sub A which represents Code A, of a coded complementary pair, while the second channel has a similar tapping structure T sub B representing Code B, of the same coded complementary pair. Single-tap transducers located at both ends of the multi-tap transducer structures are used to launch (or receive) acoustic signals to (or from) these structures.

Descriptors :   *Multiplexing, *Patents, Acoustic waves, Surface waves, Acoustic delay lines, Transmitters, Receivers, Communication equipment, Matched filters, Coding, Decoding, Transducers

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE