Genasys Inc. — Director's Dealing 2006

Aug 17, 2006

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: AMERICAN TECHNOLOGY CORP /DE/ (ATCO)
CIK: 0000924383
Period of Report: 2006-08-07

Reporting Person: MARXE AUSTIN W & GREENHOUSE DAVID M (10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3449081	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Warrants A	$2.67	2010-04-07	Common Stock (788090)		Indirect
Warrants B	$6.36	2009-07-19	Common Stock (344155)		Indirect

Footnotes

F1: This is a joint filing by Austin W. Marxe (Marxe) & David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Private Equity Fund, L.P. (PE), Special Situations Technology Fund, LP (Tech) & Special Situations Technology II, Fund, L.P. (Tech II), respectively. 1,574,806 shares of CS, 372,466 Wts A & 164,853 Wts B are held by QP, 550,640 shares of CS, 102,564 Wts A & 75,307 Wts B are held by PE, 183,435 shares of CS, 43,385 Wts A & 14,344 Wts B are held by Tech & 1,140,200 shares of CS, 269,675 Wts A & 89,651 Wts B are held by Tech II. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, PE, Tech, and Tech II is limited to the extent of his pecuniary interest.