Patents by Inventor Jonathan Weintroub

Jonathan Weintroub 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).

  • Method and apparatus for detecting optimum lens focus position
    Patent number: 7280149
    Abstract: The present invention is a technique for measuring optimum focus position of a lens to include the steps of capturing a digital image in the field of view, digitally compressing the image to provide a compressed file having a file size and providing a focus accuracy parameter derived from the file size of the compressed file. The key point of this invention is the recognition that the compressed file associated with a given image increases monotonically in size as the image is brought into focus. The latter occurs because a focused image has greater information content than an unfocused image. With such a technique, an optimal focus position of a lens can be determined by maximizing a single parameter, the compressed output file size.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: October 9, 2007
    Assignee: Flextronics Sales & Marketing (A-P) Ltd.
    Inventors: Jonathan Weintroub, Michael D. Aronson, Ellen B. Cargill
  • Method and apparatus for detecting optimum lens focus position
    Publication number: 20030117514
    Abstract: The present invention is a technique for measuring optimum focus position of a lens to include the steps of capturing a digital image in the field of view, digitally compressing the image to provide a compressed file having a file size and providing a focus accuracy parameter derived from the file size of the compressed file. The key point of this invention is the recognition that the compressed file associated with a given image increases monotonically in size as the image is brought into focus. The latter occurs because a focused image has greater information content than an unfocused image. With such a technique, an optimal focus position of a lens can be determined by maximizing a single parameter, the compressed output file size.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Jonathan Weintroub, Michael D. Aronson, Ellen B. Cargill