Cryptography – Communication system using cryptography – Wireless communication
Reexamination Certificate
2011-03-29
2011-03-29
Pich, Ponnoreay (Department: 2435)
Cryptography
Communication system using cryptography
Wireless communication
C713S168000, C713S169000, C709S227000, C709S228000
Reexamination Certificate
active
07916861
ABSTRACT:
A method for establishing a secondary communication channel between at least two computing devices over a network medium through use of a primary channel connects a first computing device with a first telephonic unit and a second computing device with a second telephonic unit. If the two telephonic units are in communication with each other over a primary channel, and communication channels are established between the computing devices and their respective telephonic units, then the first computing device transmits its location information to the second computing device over the primary channel. A connection is then established between the second computing device and the first computing device over a secondary communication channel.
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Balfanz Dirk
Conley Kenneth W.
Durfee Glenn E.
Pendleton Bryan A.
Smetters Diana K.
Palo Alto Research Center Incorporated
Park Vaughan Fleming & Dowler LLP
Pich Ponnoreay
Yao Shun
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