17443936. ULTRASONIC FINGERPRINT SENSOR TECHNOLOGIES AND METHODS FOR BI-DIRECTIONAL FINGERPRINT SENSING simplified abstract (QUALCOMM Incorporated)
Contents
ULTRASONIC FINGERPRINT SENSOR TECHNOLOGIES AND METHODS FOR BI-DIRECTIONAL FINGERPRINT SENSING
Organization Name
Inventor(s)
Rakesh Pallerla of Hyderabad (IN)
Hrishikesh Vijaykumar Panchawagh of Cupertino CA (US)
Prakash Tiwari of Hyderabad (IN)
Naga Chandan Babu Gudivada of Hyderabad (IN)
ULTRASONIC FINGERPRINT SENSOR TECHNOLOGIES AND METHODS FOR BI-DIRECTIONAL FINGERPRINT SENSING - A simplified explanation of the abstract
This abstract first appeared for US patent application 17443936 titled 'ULTRASONIC FINGERPRINT SENSOR TECHNOLOGIES AND METHODS FOR BI-DIRECTIONAL FINGERPRINT SENSING
Simplified Explanation
The patent application describes ultrasonic fingerprint sensors that can detect fingerprints from both sides of a device, such as a smartphone with screens on both sides. The sensors may include two piezoelectric and sensor pixel layer assemblies or a single assembly with a range-gate delay. Acoustic masking layers may also be used to filter ultrasonic waves.
- Ultrasonic fingerprint sensors can detect fingerprints from both sides of a device
- Two piezoelectric and sensor pixel layer assemblies or a single assembly with a range-gate delay can be used
- Acoustic masking layers can filter ultrasonic waves
Potential Applications
- Smartphones with screens on both sides
- Other devices with multiple screens or surfaces
Problems Solved
- Traditional fingerprint sensors can only detect fingerprints from one side of a device
- Limited usability and convenience for devices with screens on both sides
Benefits
- Enhanced security with fingerprint detection from both sides of a device
- Improved usability and convenience for devices with multiple screens or surfaces
Original Abstract Submitted
Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that are able to be used to detect fingerprints from opposing sides of an apparatus, e.g., a smartphone with screens on both sides of the housing. Some implementations of such sensors may include, for example, two piezoelectric and sensor pixel layer assemblies coupled to a common controller. Other implementations of such sensors may include, for example, a single piezoelectric and sensor pixel assembly coupled with a controller configured to apply a range-gate delay to obtain fingerprint scans from either opposing side of an apparatus. Yet further implementations of such sensors may include acoustic masking layers to spatially filter ultrasonic waves propagating to either side of an apparatus.
