Al Johnson, a former director of technology at Cablevision Systems, is the new vice president for technology and advanced architecture at Xtend Networks.

Xtend provides broadband solutions for cable companies. The company has developed technology that doubles the usable downstream bandwidth and increases upstream bandwidth on cable networks.

Johnson most recently worked for Ipitek, a fiber optic transmission equipment manufacturer, as senior vice president.

Xtend: www.xtendnetworks.com