Appeal 2007-0663
Application 09/825,661
10. He discloses that "[a] synchronous or asynchronous method can be
used for communication between a client and a server." (Col. 1, ll. 28-29.)
11. "There have been proposals of lock algorithms . . . for the
synchronous method." (Col. 2, ll. 16-17.)
12. More specifically, He describes a "Basic 2 Phase Lock (B2PL)"
algorithm, (id. l. 23), and a "Cashing [sic] 2PL (C2PL)" algorithm. (Col. 3,
l. 4.)
13. Because the B2PL's "sequence of operations consists of two
phases: a locking phase for reads or writes and an unlocking phase for a
commit or an abort, it is called a Two Phase Lock algorithm." (Col. 2,
ll. 64-67.)
14. The C2PL "algorithm is the same as B2PL in that the server places
a shared lock (read lock) or exclusive lock (write or update lock)," (col. 3,
ll. 5-7), followed by a commit or an abort. (Id. ll. 32-36.)
15. The passage of He cited by the Examiner, (Answer1 4), follows.
FIG. 20 shows the operation of client A requesting a commit by
the server of the update request described above. Client A
sends commitRequest( ) to the server. Then the server returns
commitReturn( ). Similarly, for abort operation, an abort
request and abort return are transferred. In this case, since the
1 We rely on and refer to the substitute Examiner's Answer, in lieu of the
original Examiner's Answer, because the latter was defective. The original
was not considered in deciding this appeal.
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