Patent Number: 7,103,392

Title: Wireless intercom system

Abstract: A wireless intercom unit includes an electronics housing including a first side, where the first side is configured to interface with a planar surface. The intercom unit also includes a microphone, a speaker, and an input device, where these components are located on a portion of the housing other than the first side. The intercom further includes a first channel transceiver for a first channel radio frequency range. In another embodiment, a wireless communication system includes a wireless intercom unit and an earpiece for wireless communication with the wireless intercom unit. In yet another embodiment of the invention, a wireless communication system includes a wireless intercom unit and a remote switch for providing user input information to the intercom unit.

Inventors: Fletcher; Douglas D. (Canton, MI), Medek; James C. (Shoreview, MN), Hall; Ronald W. (South Saint Paul, MN)

Assignee: 3M Innovative Properties Company

International Classification: H04B 1/38 (20060101)

Expiration Date: 9/05/02018