Appeal No. 1999-0260
Application 08/571,064
circuitry of a PCMCIA modem card (14). Appellants' Figure 11
shows fuses 33 and 34 in an over-current detector (40) which
detect power supply abnormalities caused by PC card (60).
The final subparagraph of claim 10 recites "halting
transmission of a signal to said input/output device in response
to said power supply abnormality that is detected." Price
teaches35 the use of processor 48 to control relay circuit 56 to
halt transmission along the incoming TIP line by opening the
relay. While Price does not halt the transmission of a signal,
we find that in implementing the sensor controlled relay in place
of the fuses of figure 11, upon a short circuit in the PC card
(60) during its operation, the relays will disconnect the power
supply lines (35 and 36) and thereby stop the signal transmission
from the PC card.
We find Appellants' recitation of the prior art36 to include
the problem that there are PC cards that have large power
consumption that exceeds the power supply capabilities of the PC
card power circuits that are provided in the PCS, and there have
been some instances where such PC cards have been loaded into the
slots of PCS. Appellants continue "In another case, the power
35 Column 8, line 56 through column 9, line 14
36 Specification, page 4, line 29, through page 5, line 10
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