Patents by Inventor Alberto M. Magnani

Alberto M. Magnani 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).

  • Ultra-high dynamic range two photodiode pixel architecture
    Patent number: 9933300
    Abstract: A pixel comprises a high-response photodiode that collects photocharge, a first transfer gate that enables the charge to be transferred off the high-response photodiode, completely emptying it onto a low-response photodiode, a second transfer gate enables the charge to be transferred off the low-response photodiode, completely emptying it onto floating diffusion, a third transfer gate for anti-blooming; the floating diffusion collects the transferred charge creating a change of voltage, a means of resetting the floating diffusion. A source-follower is modulated by the voltage on floating diffusion to control bit-line voltage and column-amplifier output. In examples, photocharge is integrated onto both the high-response photodiode and onto the low-response photodiode.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 3, 2018
    Assignee: BAE Systems Imaging Solutions Inc.
    Inventors: Hung T Do, Alberto M Magnani, R Daniel McGrath
  • ULTRA-HIGH DYNAMIC RANGE PIXEL ARCHITECTURE
    Publication number: 20170241835
    Abstract: A pixel comprises a high-response photodiode that collects photocharge, a first transfer gate that enables the charge to be transferred off the high-response photodiode, completely emptying it onto a low-response photodiode, a second transfer gate enables the charge to be transferred off the low-response photodiode, completely emptying it onto floating diffusion, a third transfer gate for anti-blooming; the floating diffusion collects the transferred charge creating a change of voltage, a means of resetting the floating diffusion. A source-follower is modulated by the voltage on floating diffusion to control bit-line voltage and column-amplifier output. In examples, photocharge is integrated onto both the high-response photodiode and onto the low-response photodiode.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 24, 2017
    Inventors: Hung T. Do, Alberto M. Magnani, R. Daniel McGrath