Appeal No. 1999-0260
Application 08/571,064
sources are short-circuited to GND (ground) because of the
abnormalities of internal circuits of the PC cards. . . . When
the power consumption of a loaded PC card is unexpectedly great,
the PC card power supply circuit in the PC and the power circuit
of the PC itself may be destroyed, and the data contents of the
memory for the PC will be lost."
While the prior art of Appellants' figure 11 provides fuses
(33) and (34) to protect the system from over-currents, Price,
which is directed to protecting a PC modem card, teaches37 that
the reaction time of fuses is relatively slow and often
unpredictable and requires using higher rated components.
Although Price protects a PCMCIA card modem while Appellants
protect a computer, this difference is de minimus in view of the
proximity of the art and the specific teaching by Price.
In addition, Price's invention uses the current sensing
circuitry (46) with a processor (48) controlled relay (56) which
is resettable to protect from line over-current. Applying this
teaching to the PCMCIA Standard (Appellants' figure 11) teaches
the substitution of fuses 33 and 34 with the protective relay
circuitry of Price.
37 Column 4, lines 28-42
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