Electronic device including sequential operation of light source subsets while acquiring biometric image data and related methods
AssigneeApple Inc.
InventorsMohammad Yeke Yazdandoost, Giovanni Gozzini, Dale R. Setlak
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Abstract
An electronic device may include a dielectric cover layer defining a finger sensing surface and at least one optical image sensor below the dielectric cover layer. The electronic device may also include at least one optical element associated with the at least one optical image sensor. Light sources may be below the dielectric layer and may be selectively operable in subsets of light sources. A controller may be configured to sequentially operate respective adjacent subsets of light sources while acquiring biometric image data from the at least one optical image sensor.
Claims24
An electronic device comprising:
- a dielectric cover layer defining a finger sensing surface;
- at least one optical image sensor below the dielectric cover layer;
- at least one optical element associated with the at least one optical image sensor;
- a plurality of light sources below the dielectric layer and selectively operable in subsets of light sources;
- and
- a controller configured to sequentially operate the subsets of light sources while acquiring biometric image data from the at least one optical image sensor.
An electronic device comprising:
- A dielectric cover layer defining a finger sensing surface;
- at least one optical image sensor below the dielectric cover layer and configured to sense biometric image data;
- at least one optical element associated with the at least one optical image sensor;
- a plurality of display pixels below the dielectric layer and selectively operable in subsets of display pixels;
- and
- a controller configured to sequentially operate respective adjacent subsets of display pixels in a first pass in a first direction, and in a second pass in a second direction transverse to the first direction while acquiring biometric image data from the optical image sensor.
A method of acquiring biometric image data in an electronic device comprising a dielectric cover layer defining a finger sensing surface, at least one optical image sensor below the dielectric cover layer, at least one optical element associated with the at least optical image sensor, a plurality of light sources below the dielectric layer and selectively operable in subsets of light sources, the method comprising:
- using a controller to sequentially operate respective adjacent subsets of light sources while acquiring the biometric image data from the at least one optical image sensor.
Dependencies are inferred from the claim text.