Number | Name | Date | Kind |
---|---|---|---|
3451503 | Twomey | Jun 1969 | |
4146112 | Usry | Mar 1979 | |
4306209 | Choschzick et al. | Dec 1981 | |
4724413 | Kataoka | Feb 1988 |
Entry |
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"Fighting Noise with Noise", by William B. Canover, Noise Control, 1956, 92, pp. 78-82 (copy unavailable). |
"Active Noise Control Systems", by R.R. Leitch and M.O. Tokhi, IEEE Proceedings, vol. 134, Pt. A, No. 6, Jun. 1987, pp. 525, 528, and 545. |