Patents by Inventor Jonathan D. Lettvin

Jonathan D. Lettvin 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).

  • Patent number: 7952626
    Abstract: A signal processing system distributes an input signal over a plurality of shaped signal distribution structures that are interconnected with a plurality of shaped signal pickup units. The signal distribution structures and/or the signal pickup units include delay lines. The shape of the signal distribution structures and the shape of the signal pickup units and the configuration of the interconnections between the shaped structures and the pickup units determine the type of analysis performed on the signals. The signal possessing is distributed across the shaped structures. Input information is diffracted or spread, such that statistical correlations can be found by reconverging the diffracted information. Signals propagated through the system can be a combination of analog, digital and pulse signals. Optionally, feedback is used to amplify or attenuate earlier stages, such that outputs or actions are based on the relative importance of the input signals.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: May 31, 2011
    Inventor: Jonathan D. Lettvin
  • Publication number: 20100302240
    Abstract: Signals from an object in a field of view are detected by an array of directional sensors and “re-converged” to create a three-dimensional image as the object changes contrast or moves relative to the sensors. Each sensor is oriented along an axis toward the field of view. Sensor signals are converted to logarithms thereof and transients are detected and compared to background signals. Resulting signals are connected in overlapping groups to coincidence detectors in a matrix. Each point in the field of view where two or more sensor axes intersect is represented by a coincidence detector, which is connected to the corresponding group of sensors. If a threshold number of sensors in the group detects a transient, the corresponding point in the image is deemed to be “contrasty” and can be made visible or otherwise perceivable by a human or can be further processed by a computer or other circuit.
    Type: Application
    Filed: August 12, 2010
    Publication date: December 2, 2010
    Inventor: Jonathan D. Lettvin
  • Patent number: 7796173
    Abstract: Signals from an object in a field of view are detected by an array of directional sensors and “re-converged” to create a three-dimensional image as the object changes contrast or moves relative to the sensors. Each sensor is oriented along an axis toward the field of view. Sensor signals are converted to logarithms thereof and transients are detected and compared to background signals. Resulting signals are connected in overlapping groups to coincidence detectors in a matrix. Each point in the field of view where two or more sensor axes intersect is represented by a coincidence detector, which is connected to the corresponding group of sensors. If a threshold number of sensors in the group detects a transient, the corresponding point in the image is deemed to be “contrasty” and can be made visible or otherwise perceivable by a human or can be further processed by a computer or other circuit.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: September 14, 2010
    Inventor: Jonathan D. Lettvin
  • Patent number: 5826012
    Abstract: A computer storage medium has software executed at startup of the computer, before the computer executes an ultimate operating system. The software provides anti-virus, maintenance and/or repair functions. In one embodiment, the software is stored on a "hidden partition" of the storage medium; the hidden partition not only shields the software from many viruses, but provides storage space that does not reduce formatted or advertised capacity.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: October 20, 1998
    Inventor: Jonathan D. Lettvin
  • Patent number: 5559960
    Abstract: A virus-resistant disk has a "hidden partition" in which anti-virus software is stored; the hidden partition not only shields the software from many viruses, but provides storage space that does not reduce the disk's formatted or advertised capacity. The disk includes software to cause the computer to execute the anti-virus software. The invention provides a hidden partition by utilizing storage space on the disk that is not reflected in the size and geometry information stored on the disk, e.g., in the BIOS Parameter Block.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: September 24, 1996
    Inventor: Jonathan D. Lettvin