logo_deltaDelta Information Systems is a diverse organization that provides leading edge solutions in the areas of visual communications, and aerospace telemetry including video bandwidth compression and scan conversion products.


Decoders & Encoders


Military/Government, ITS/Transportation, Air Traffic, Broadcast, Security & Surveillance, Law Enforcemet



Rocktronics, Inc. (Head Office)

President & CEO : Mr. Stewart Choi
1464 E. Valencia Dr., Fullerton, CA 92831 U.S.A
Tel: 714)578-0500 Fax: 714)578-0505

Rocktronics Korea, Inc. (Branch Office)

Teran Bldg., GangNam-Ku, Seoul, Korea Tel: 02)553-0095 Fax: 02)553-2833

MegaFos, Inc.

(export License / value add / assembly service subsidiary)
Tel: 714)447-0700 Fax: 714)447-0701