Appendix
Section 8
January 2009
Digital Talking-Book Player
54
Library Guide
19
Total idle time while the player
is powered by AC.
Three conditions must be met to be idle: no button
pressed, no audio played, and power is coming from
AC power source.
20
Total idle time while the player is
powered by
battery for the current battery pack
.
Three conditions must be met to be idle: no button
pressed, no audio played, and power is coming from
batteries.
21
Idle Time
Total idle time while the player
is powered by
battery since the birth of the player
.
22
Percentage play time on batteries
Total battery play time /Total play time
23
1 min < # of battery usages < 30 min
24
30 min < # of battery usages < 1 hr
25
1hr < # of battery usages < 3 hrs
26
3hrs < # of battery usages < 10 hrs
27
Battery usage data
10 hrs < # of battery usage
28
Number of cartridges inserted
Total number of times a USB drive was plugged in
29
Total communication errors from the “gas gauge”
device
since the birth of the player
30
Number of Battery Errors
Total communication errors from the “gas gauge”
device
for the current battery pack
.
31
Number of Power On
Number of times the player was turned on
32
full < # of battery charges < 75% full
33
75% full < # of battery charges < 50% full
34
50% full < # of battery charges < 25% full
35
Charge data (with current battery)
25% full < # of battery charges < empty
36
full < # of battery charges < 75% full
37
75% full < # of battery charges < 50% full
38
50% full < # of battery charges < 25% full
39
Charge data (since birth of player)
25% full < # of battery charges < empty
40
AC Cord
Number of times plugged in
41 Play/Stop
42 Rewind
43 Fast
Forward
44
Button Presses
Volume Up