San Diego-based portable entertainment system provider e.Digital Corp. (OTC: EDIG) has sued 19 companies, including Canon, Kyocera, Nokia, Panasonic and Pentax, for improperly using its patented flash-memory technology in digital cameras, voice recorders and mobile phones.

Carlsbad-based ViaSat Inc. (Nasdaq: VSAT) has been selected by BAE Systems Australia to provide satellite ground stations for a high-speed upgrade to Australian Defence Force (ADF) satellite communications.

San Diego-based network backup provider Arkeia Software has acquired Kadena Systems, a Santa Clara-based provider of next-generation data deduplication technologies.

Accompanying all of the elegant portable devices we use are inelegant ways of keeping them charged; ugly power adapters that seem like afterthoughts, tangled wires and never enough outlets. That has spawned all sorts of creations, from chargers with multiple tips to power strips with rotating sockets, to charging stands that accommodate multiple devices.