Patents by Inventor Guillermo Del Castillo

Guillermo Del Castillo 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).

  • Publication number: 20080300777
    Abstract: A wheelchair navigation system for a motorized wheelchair includes dual cameras, proximity sensors, microphones, and rotation sensors for the wheels. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotation sensors and cameras in conjunction with the specialized software to determine where objects or impediments are located in the room and thereby redirect the path of the wheelchair so as to avoid such objects. The wheelchair is walked through the marked location thereby ‘teaching’ various paths which are recorded in the computer and recalled later when the wheelchair is in use. The proximity sensor perform sensing operations during performance of the teaching functions for thereby permitting avoidance of wheelchair collision with obstacles during navigation of the wheelchair through a taught trajectory and allowing for close approach of the wheelchair to solid bodies present during performance of the teaching functions.
    Type: Application
    Filed: May 6, 2008
    Publication date: December 4, 2008
    Inventors: Linda Fehr, Steven B. Skaar, Guillermo Del Castillo
  • Patent number: 7383107
    Abstract: A wheelchair navigation system for a motorized wheelchair includes dual cameras, proximity sensors, microphones, and rotation sensors for the wheels. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotation sensors and cameras in conjunction with the specialized software to determine where objects or impediments are located in the room and thereby redirect the path of the wheelchair so as to avoid such objects. The wheelchair is walked through the marked location thereby ‘teaching’ various paths which are recorded in the computer and recalled later when the wheelchair is in use. The proximity sensor perform sensing operations during performance of the teaching functions for thereby permitting avoidance of wheelchair collision with obstacles during navigation of the wheelchair through a taught trajectory and allowing for close approach of the wheelchair to solid bodies present during performance of the teaching functions.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: June 3, 2008
    Assignees: The United States of America as represented by the Department of Veterans Affairs, University of Notre Dame
    Inventors: Linda Fehr, Steven B. Skaar, Guillermo Del Castillo
  • Patent number: 6842692
    Abstract: A wheelchair navigation system having motorized wheelchair which is powered by at least one onboard battery, and a battery charger. The navigation system also has a filter-based estimator with interface software running that is operated on an onboard laptop computer. Dual cameras, proximity sensors, microphones, and rotation sensors for the wheels are mounted to the wheelchair. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotation sensors and cameras in conjunction with the specialized software to determine where objects or impediments are located in the room and thereby redirect the path of the wheelchair so as to avoid such objects. The wheelchair is walked through the marked location thereby ‘teaching’ various paths which are recorded in the computer and recalled later when the wheelchair is in use.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: January 11, 2005
    Assignees: The United States of America as represented by the Department of Veterans Affairs, University of Notre Dame
    Inventors: Linda Fehr, Steven B. Skaar, Guillermo Del Castillo
  • Publication number: 20040267442
    Abstract: A wheelchair navigation system for a motorized wheelchair includes dual cameras, proximity sensors, microphones, and rotation sensors for the wheels. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotation sensors and cameras in conjunction with the specialized software to determine where objects or impediments are located in the room and thereby redirect the path of the wheelchair so as to avoid such objects. The wheelchair is walked through the marked location thereby ‘teaching’ various paths which are recorded in the computer and recalled later when the wheelchair is in use. The proximity sensor perform sensing operations during performance of the teaching functions for thereby permitting avoidance of wheelchair collision with obstacles during navigation of the wheelchair through a taught trajectory and allowing for close approach of the wheelchair to solid bodies present during performance of the teaching functions.
    Type: Application
    Filed: July 14, 2004
    Publication date: December 30, 2004
    Inventors: Linda Fehr, Steven B. Skaar, Guillermo Del Castillo
  • Publication number: 20040006422
    Abstract: A wheelchair navigation system having motorized wheelchair which is powered by at least one onboard battery, and a battery charger. The navigation system also has a filter-based estimator with interface software running that is operated on an onboard laptop computer. Dual cameras, proximity sensors, microphones, and rotation sensors for the wheels are mounted to the wheelchair. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotation sensors and cameras in conjunction with the specialized software to determine where objects or impediments are located in the room and thereby redirect the path of the wheelchair so as to avoid such objects. The wheelchair is walked through the marked location thereby ‘teaching’ various paths which are recorded in the computer and recalled later when the wheelchair is in use.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 8, 2004
    Inventors: Linda Fehr, Steven B. Skaar, Guillermo Del Castillo