Qualcomm incorporated (20240161533). APPARATUS WITH ULTRASONIC FINGERPRINT SENSOR AND ONE OR MORE RESONATORS, AND RELATED SYSTEMS AND METHODS simplified abstract

APPARATUS WITH ULTRASONIC FINGERPRINT SENSOR AND ONE OR MORE RESONATORS, AND RELATED SYSTEMS AND METHODS

Organization Name

qualcomm incorporated

Inventor(s)

Jessica Liu Strohmann of Cupertino CA (US)

Hrishikesh Vijaykumar Panchawagh of Cupertino CA (US)

Nai-Kuei Kuo of Los Gatos CA (US)

Yipeng Lu of Moraga CA (US)

Ali Lopez of Dublin CA (US)

Kostadin Dimitrov Djordjev of Los Gatos CA (US)

APPARATUS WITH ULTRASONIC FINGERPRINT SENSOR AND ONE OR MORE RESONATORS, AND RELATED SYSTEMS AND METHODS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240161533 titled 'APPARATUS WITH ULTRASONIC FINGERPRINT SENSOR AND ONE OR MORE RESONATORS, AND RELATED SYSTEMS AND METHODS

Simplified Explanation

The patent application describes an ultrasonic sensor stack with an acoustic resonator designed to enhance ultrasonic waves for ultrasonic fingerprint sensors.

• Ultrasonic sensor stack with acoustic resonator
• Acoustic resonator enhances ultrasonic waves in suitable frequency range
• Resonator includes low-impedance layers between higher-impedance layers
• Low-impedance layers have lower acoustic impedance than higher-impedance layers
• At least one low-impedance layer has thickness corresponding to multiple of half wavelength at peak frequency
• Peak frequency within 1 MHz to 20 MHz range

Potential Applications

This technology can be applied in:

• Ultrasonic fingerprint sensors
• Medical imaging devices
• Non-destructive testing equipment

Problems Solved

This technology addresses:

• Enhancing ultrasonic waves for improved sensor performance
• Providing accurate and reliable fingerprint recognition
• Improving signal quality in medical imaging

Benefits

The benefits of this technology include:

• Higher accuracy in fingerprint recognition
• Enhanced image quality in medical imaging
• Increased sensitivity in non-destructive testing

Potential Commercial Applications

The technology can be commercially applied in:

• Smartphone security systems
• Healthcare industry for medical imaging
• Industrial sector for non-destructive testing

Possible Prior Art

One possible prior art is the use of acoustic resonators in ultrasonic sensors for various applications. However, the specific configuration of low-impedance layers between higher-impedance layers to enhance ultrasonic waves for fingerprint sensors may be a novel aspect of this technology.

How does this technology compare to existing ultrasonic sensor designs in terms of performance and cost?

This article does not provide a direct comparison with existing ultrasonic sensor designs in terms of performance and cost. Further research and testing would be needed to evaluate the technology's competitiveness in the market.

What are the potential challenges in implementing this technology on a large scale for commercial applications?

The article does not address the potential challenges in implementing this technology on a large scale for commercial applications. Factors such as manufacturing scalability, cost-effectiveness, and regulatory compliance could pose challenges that need to be explored further.

Original Abstract Submitted

some disclosed implementations include an ultrasonic sensor stack and an acoustic resonator. the acoustic resonator may be configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in an ultrasonic frequency range that is suitable for ultrasonic fingerprint sensors. in some examples, the acoustic resonator may include one or more low-impedance layers residing between a first higher-impedance layer and a second higher-impedance layer. each of the one or more low-impedance layers may have a lower acoustic impedance than an acoustic impedance of the first higher-impedance layer or an acoustic impedance of the second higher-impedance layer. at least one low-impedance layer may have a thickness corresponding to a multiple of a half wavelength at a peak frequency of the acoustic resonator. the peak frequency may be within a frequency range from 1 mhz. to 20 mhz.