Patents by Inventor David CASTRO SIGNORET

David CASTRO SIGNORET has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Piezoelectric array elements for sound reconstruction with a digital input
    Patent number: 10575075
    Abstract: Various examples are provided for digital sound reconstruction using piezoelectric array elements. In one example, a digital loudspeaker includes a fixed frame and an array of transducers disposed on the fixed frame. Individual transducers of the array of transducers can include a flexible membrane disposed on a piezoelectric actuation element positioned over a corresponding opening that extends through the fixed frame. In another example, a method includes forming a flexible membrane structure on a substrate and backetching the substrate opposite the flexible membrane structure. The flexible membrane structure can be formed by disposing a first electrode layer on a substrate, disposing a piezoelectric layer on the first electrode layer and disposing a second electrode layer on the piezoelectric layer. A flexible membrane layer (e.g., polyimide) can be disposed on the second electrode layer.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: February 25, 2020
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Armando Arpys Arevalo Carreno, David Conchouso Gonzalez, David Castro Signoret, Ian G. Foulds
  • PIEZOELECTRIC ARRAY ELEMENTS FOR SOUND RECONSTRUCTION WITH A DIGITAL INPUT
    Publication number: 20190261074
    Abstract: Various examples are provided for digital sound reconstruction using piezoelectric array elements. In one example, a digital loudspeaker includes a fixed frame and an array of transducers disposed on the fixed frame. Individual transducers of the array of transducers can include a flexible membrane disposed on a piezoelectric actuation element positioned over a corresponding opening that extends through the fixed frame. In another example, a method includes forming a flexible membrane structure on a substrate and backetching the substrate opposite the flexible membrane structure. The flexible membrane structure can be formed by disposing a first electrode layer on a substrate, disposing a piezoelectric layer on the first electrode layer and disposing a second electrode layer on the piezoelectric layer. A flexible membrane layer (e.g., polyimide) can be disposed on the second electrode layer.
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Inventors: Armando Arpys AREVALO CARRENO, David CONCHOUSO GONZALEZ, David CASTRO SIGNORET, Ian G. FOULDS
  • Piezoelectric array elements for sound reconstruction with a digital input
    Patent number: 10327052
    Abstract: Various examples are provided for digital sound reconstruction using piezoelectric array elements. In one example, a digital loudspeaker includes a fixed frame and an array of transducers disposed on the fixed frame. Individual transducers of the array of transducers can include a flexible membrane disposed on a piezoelectric actuation element positioned over a corresponding opening that extends through the fixed frame. In another example, a method includes forming a flexible membrane structure on a substrate and backetching the substrate opposite the flexible membrane structure. The flexible membrane structure can be formed by disposing a first electrode layer on a substrate, disposing a piezoelectric layer on the first electrode layer and disposing a second electrode layer on the piezoelectric layer. A flexible membrane layer (e.g., polyimide) can be disposed on the second electrode layer.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 18, 2019
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Armando Arpys Arevalo Carreno, David Conchouso Gonzalez, David Castro Signoret, Ian G. Foulds
  • PIEZOELECTRIC ARRAY ELEMENTS FOR SOUND RECONSTRUCTION WITH A DIGITAL INPUT
    Publication number: 20180098139
    Abstract: Various examples are provided for digital sound reconstruction using piezoelectric array elements. In one example, a digital loudspeaker includes a fixed frame and an array of transducers disposed on the fixed frame. Individual transducers of the array of transducers can include a flexible membrane disposed on a piezoelectric actuation element positioned over a corresponding opening that extends through the fixed frame. In another example, a method includes forming a flexible membrane structure on a substrate and backetching the substrate opposite the flexible membrane structure. The flexible membrane structure can be formed by disposing a first electrode layer on a substrate, disposing a piezoelectric layer on the first electrode layer and disposing a second electrode layer on the piezoelectric layer. A flexible membrane layer (e.g., polyimide) can be disposed on the second electrode layer.
    Type: Application
    Filed: April 7, 2016
    Publication date: April 5, 2018
    Inventors: Armando Arpys AREVALO CARRENO, David CONCHOUSO GONZALEZ, David CASTRO SIGNORET, Ian G. FOULDS