Appeal No. 97-2979 Page 2
Application No. 08/219,553
BACKGROUND
The appellants’ invention is a Small Computer System
Interface (SCSI) controller. It automatically and non-
intrusively interrogates the status of peripheral devices,
i.e., SCSI targets, to which it is connected. The controller
also stores status data returned by the targets. The stored
status data are available to a plurality of host processors
also connected to the controller.
Claim 1, which is representative for our purposes,
follows:
1. A non-intrusive SCSI status sensing system
comprising:
a controller having operating means for initiating
and transmitting non-intrusive status requests and
for receiving and storing ATTENTION DATA and PM DATA
responses to said non-intrusive status requests; and
a plurality of SCSI targets with each of said SCSI
targets connected to said controller for receiving
said non-intrusive status requests from said
controller and having generating and transmitting
means for generating and transmitting said ATTENTION
DATA and PM DATA responses to said controller on
receiving said nonintrusive status requests.
(Appeal Br. at 8.)
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