Appeal No. 2003-1617 Page 6
Application No. 09/144,240
given set of circumstances is not sufficient." In re Oelrich, 666 F.2d 578, 581, 212
USPQ 323, 326 (CCPA 1981) (citing Hansgirg v. Kemmer, 102 F.2d 212, 214, 40 USPQ
665, 667 (Cust. & Pat.App. 1939)).
Here, Nunally discloses "an intelligent video information management (IVIM)
system. . . ." Col. 15, ll. 43-44. "Key components of each IVIM system are video
analysis and storage units 518 connected by data communication paths 519 to the
respective local node 516. Each unit 518 has connected thereto one or more video
cameras, indicated as cameras 520-1 through 520-N. Each video analysis and storage
unit 518 provides storage, analysis and selective retrieval of video information streams
generated by the video cameras 520 connected thereto." Col. 16, ll. 13-20.
"FIG. 126 portrays operation of the . . . unit to provide pre-alarm buffer storage of
an incoming video signal stream at a field rate that is higher than a 'permanent' field rate
that has been assigned to the video stream." Col. 83, ll. 13-16. "At step 2518, an
incoming video data stream is received and captured in the form of a sequence of video
data fields," id. at ll. 17-19; "the video data stream is captured at a rate of about three
fields per second." Id. at ll. 19-21. "At step 2520, selected ones of the video data fields
captured at step 2518 are recorded at a lower field rate, say one field per second, in a
main 'permanent recording' area of a hard drive." Id. at ll. 22-25. "Meanwhile, at
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