(19) United States
(12) Patent Application Publication (io) Pub. No.: US 2001/0049277 Al
Meyer et al. (43) Pub. Date: Dec. 6,2001
(54) SECONDARY DATA ENCODED ALONG
WITH ORIGINAL DATA FOR GENERATING
RESPONSES TO REQUESTS FROM
(76) Inventors: Shane D. Meyer, Redmond, WA (US);
Craig G. Eisler, Redmond, WA (US);
Brian C. Roundtree, Kirkland, WA
Suite 300 South
1001 Pennsylvania Avenue, N.W.
Washington, DC 20004 (US)
(21) Appl. No.: 09/834,649
(22) Filed: Apr. 16, 2001
Related U.S. Application Data
(63) Non-provisional ol provisional application No. 60/182,330, filed on Feb. 14, 2000.
Encoding secondary data with original data for providing robust responses to requests from wireless devices. As a server receives data from various sources for wireless device users, it saves the data, associates it with the corresponding users, and sets flags to provide an indication ol the secondary data. When the server receives a request from a wireless device, it can respond to the specific request and check the status ol the flags lor the user to determine il secondary data exists. II it has secondary data for the user, it encodes that data with original data lor generating a response. Upon receiving the response, the wireless device obtains both the data for the original request and the secondary data, or an indication ol it, representing other data pending lor the user and providing the user with the data without necessarily requiring that the user submit specific requests lor it.