search

Cypress CapSense CY8C20x36 Betriebsanweisung Seite 45

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 75
  • Inhaltsverzeichnis
  • LESEZEICHEN
    • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 44
Getting Started with CapSense
®
Document No. 001-64846 Rev. *I 45
Figure 3-19. Median Filter (16-sample) Finger Touch
For more information about how to implement a median filter, see the code example CSA Software Filters with
EzI2Cs Slave on CY8C20xx6.
3.4.4 Jitter Filter
3.4.4.1 Jitter Filter for Noisy Slider Data
The centroid function is used to estimate finger position on a slider. When the signal level is low, usually because of
thick overlay on the slider, the estimate of finger position will appear to shake and jitter even when the finger is held at
a fixed position. This jitter noise can be removed using a jitter filter. To do this, the previous input is stored in a buffer.
The current input is compared to the previous output. If the difference is greater than ±1, the output is changed by ±1
(matching sign), as shown in Equation 22. This is a nonlinear filter.
 
 
  Equation 22
 
 
 
 

Figure 3-20 shows the results of applying a jitter filter applied to noisy centroid data.
Seitenansicht 44
1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 74 75

Kommentare zu diesen Handbüchern

Keine Kommentare
  • Joytech Cineversum Warmland Styletto EXFO
  • Clarion Autonavigationssysteme Neptune Nein Festool Nein Orion Kühlboxen KanexPro Videoschalter
  • Electrolux EWP1072TDW Philips QC5530-15 Electrolux EHC60040X Danby DAC8010E Samsung 320PX
  • BT 3205 Bedienungsanleitung Samsung MR-EH00 Bedienungsanleitung Asus M3N78-VM Bedienungsanleitung JVC SP-X880 Bedienungsanleitung