Appeal 2007-2127
Reexamination Control No. 90/006,621
REEXAMINATION PROCEEDING .................................................... 6
CONTINUITY INFORMATION ........................................................... 6
PENDING AND RELATED LITIGATION .......................................... 7
RELATED DECISION ........................................................................... 8
THE INVENTION................................................................................... 9
REFERENCES ....................................................................................... 12
REJECTIONS ......................................................................................... 13
DISCUSSION ........................................................................................ 15
ARGUMENTS NOT MADE ARE WAIVED ................................... 15
INTRODUCTION ............................................................................. 15
CLAIM INTERPRETATION ........................................................... 19
Issues ............................................................................................... 19
Principles of law ............................................................................ 19
Facts ............................................................................................... 20
Analysis .......................................................................................... 25
1. Terms stated to have ordinary meanings in the art ................ 25
2. Background explanation of "multithreading" ........................ 27
a. Operating system ............................................................. 28
b. Program ............................................................................. 28
c. Process .............................................................................. 29
d. Thread ............................................................................... 29
e. Operating System/2 (OS/2) ............................................... 29
f. Multitasking ....................................................................... 30
g. Concurrent execution ........................................................ 31
h. Multitasking in a single processor system ........................ 32
i. Task or context switching .................................................. 33
j. Thread scheduling and dispatching ................................... 35
k. Multithreading .................................................................. 37
l. Multithreaded versus sequential programs ........................ 39
m. Advantages of multithreading ......................................... 41
n. Creating threads ................................................................ 42
o. Asynchronous execution of threads .................................. 43
p. A simple multithreading example ..................................... 43
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