Patent ID: 7359920
Filing Date: 2008-04-15
Classification: G06F,Y10S

Abstract:
1. A method comprising: synchronizing a client instance of a personal information management (PIM) database stored on a client device with a server instance of a PIM database stored on a server, wherein synchronizing comprises: running client synchronization software on the client device; running server synchronization software on the server, which is connected to the client device over a communications link; having the client synchronization software process at least some records of the client instance of the PIM database to form hashes of the records; transmitting the hashes from the client device to the server; having the server synchronization software determine from the hashes whether the at least some records of the client instance are present in the server instance; having the server transmit to the client an indication of which of the at least some records are present in the server instance; and having the client refrain from transmitting the records for which the indication is received that the records are present in the server instance, wherein the indication comprises concatenated operations which identify the records, the operations comprise an op code followed by an operand.