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A
system usually has more than one input
device. Mouse is often one of them. In the
earlier operating systems such as DOS,
Windows 95, and XP, nothing was defined for
touch input devices. And this state hadn't
got any improvement until XP Tablet and
Windows 7 emerged. PenMount devices had been
installed as mouse devices in Microsoft O.S.
for a very long time in the past. Until in
Windows Vista and 7, PenMount devices hadn't
been able to be installed as touch input
devices. With PenMount drivers, a PenMount
device can be switched between mouse or
touch input device. Also with PenMount
driver, you can enable/disable any of Window
7's native functions or PenMount's specially
featured touch functions. This flexibility
will render the best touch experience for
you.
PenMount team keeps updating drivers to meet
customers' needs. PenMount team also does
the best to help customers fixing the
problems they reported. Standby is a
system-centric mechanism activated according
to BIOS power configuration, which defines
various power states. With different power
states, the standby levels are also
different. The higher the level is, the less
power is supplied to the system. We hereby
roughly describe the relationship between
standby levels and system's power management
as following:
S1: 1st stage power saving: Power to the
monitor is off.
S3: Suspend to RAM. Power to DRAM is
maintained so as to facilitate quick system
resumption.
S4: Suspend to Disk. Also hibernation, the
power to PCI bus is maintained so that the
system can be waked by LAN.
When standby mode is configured in BIOS, you
will find system resumption also activated
on your system. Taking Microsoft Windows for
example, in PenMount's properties sheet
under Windows' Device Manager, you will find
“Power Management” tab generated. By
selecting Allow this device to bring the
computer out of standby, you will be able to
resume the system with PenMount device.
Let us make it more clear to you by the
interfaces of RS232 and USB. In normal
circumstances, on Windows O.S., only USB
supports system resumption from standby
mode. For resistive touch control, the
coordinate values of the touched position is
retrieved first through the division of
voltage and further through the conversion
of the ADC in IC, and it is therefore
necessary to adopt a stable power supply in
order to prevent unexpected occurrence such
as this situation: PenMount resumption is
enabled. However, at the moment when system
enters S1 or S3, the voltage isn't stable
enough and voltage drops, then system
automatically resumes and isn't able to
enter S1 or S3.
Normally speaking, S4 is the state that
system power is saved to the maximum. Hence,
if there is no power supply to USB, USB
won't be able to be used to resume the
system. On the other hand, RS232 is not able
to support any resumption from any standby
modes.
A
screensaver isn't exactly the same as
standby modes. A screensaver usually runs
when the computer is not in use for a while.
It usually plays moving images on screen and
thus only has hardly any impact on the power
supply to the system. For a PenMount device
to quit the screensaver, it only takes a
touch on the touch screen to bring the
system back to awake state. No special
resumption feature is needed for PenMount
devices to resume the system.
All of PenMount's touch software / hardware
series are designed meeting markets demands.
If you feel any particular requirements for
any individualized product specification, we
are ready to fully assist you in the
development. The software / hardware
information and drivers of PenMount
standards are available on PenMount website
at
www.salt.com.tw
and
www.penmount.com.
And if you should have any comment, please
also feel free to write us at
salt@salt.com.tw
or
penmount@seed.net.tw. |
