Display device having a stepper motor and a watchdog timer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 29, 2015
Grant Date -
Jan 2, 2014
app pub date -
Mar 12, 2012
filing date -
Mar 14, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A display device, having a microcontroller, a graphics controller, and a pointer driven by a stepper motor. The graphics controller does not have an arithmetic logic unit and can be controlled by the microcontroller and by command sequences of a command sequencer contained in the graphics controller. The graphics controller has a stepper motor controller and the command sequencer has a watchdog timer. The watchdog timer is designed to monitor a connection signal between the microcontroller and the graphics controller and to start a first command sequence if the connection signal is overdue. The first command sequence is designed to use an internal cyclical signal to repeatedly start a second command sequence designed to move the stepper motor one step in the direction of a stop or a home position by the stepper motor controller.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully