06879698 is referenced by 74 patents and cites 17 patents.

The present invention discloses a method and apparatus for hands free communication using a PDA. The method includes sensing a bone conduction signal from the bone conduction sensor disposed within an external auditory cannel of the user, transmitting the sensed bone conduction signal from a transmitter to a PDA, and processing the sensed bone conduction signal at the PDA to create a processed audio signal.

Title
Cellular telephone, personal digital assistant with voice communication unit
Application Number
9/870807
Publication Number
6879698 (B2)
Application Date
May 31, 2001
Publication Date
April 12, 2005
Inventor
Peter V Boesen
Des Moines, 50311
IA, US
Agent
McKee Voorhees & Sease
IPC
H04R 025/00
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