A CMOS-only micro touch pointer

A CMOS-only micro touch pointer

A direct-contact finger mouse realized in 0.7-/spl mu/m digital CMOS is presented. It is based on the motion detection of the fingerprint images acquired with a capacitive sensor. Stroking and tapping the chip surface with the finger causes movement of the cursor and clicking-like mouse. By properly...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE journal of solid-state circuits 1999-12, Vol.34 (12), p.1860-1868
Hauptverfasser: Manaresi, N., Rambaldi, R., Tartagni, M., Vajna, Z.M.K., Guerrieri, R.
Format: Artikel
Sprache:eng
Schlagworte:
Capacitive sensors
Chips
CMOS
CMOS image sensors
Digital
Energy consumption
Fingerprint recognition
Fingers
Image matching
Image sensors
Intelligent sensors
Mice
Optical sensors
Power consumption
Sensors
Touch
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A direct-contact finger mouse realized in 0.7-/spl mu/m digital CMOS is presented. It is based on the motion detection of the fingerprint images acquired with a capacitive sensor. Stroking and tapping the chip surface with the finger causes movement of the cursor and clicking-like mouse. By properly partitioning analog collective computation and digital processing, a power consumption of about 900 /spl mu/W at 5 V is achieved. The sensor area is 3.8/spl times/3.8 mm/sup 2/, and overall chip size is 7.7/spl times/6.7 mm/sup 2/.
ISSN:0018-9200
1558-173X
DOI:10.1109/4.808911