Patents by Inventor Juha H. Alakarhu

Juha H. Alakarhu 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: 8965045
    Abstract: An apparatus including a processor configured to move automatically a sub-set of pixels defining a target captured image within a larger set of available pixels in a direction of an edge of the target captured image when a defined area of interest within the target captured image approaches the edge of the target captured image and configured to provide a pre-emptive user output when the sub-set of pixels approaches an edge of the set of available pixels.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 24, 2015
    Assignee: Nokia Corporation
    Inventors: Ossi Mikael Kalevo, Matti Sakari Hamalainen, John Samuels, Juha H. Alakarhu, Euan James Barron, Marko Torvinen
  • Publication number: 20130216092
    Abstract: An apparatus including a processor configured to move automatically a sub-set of pixels defining a target captured image within a larger set of available pixels in a direction of an edge of the target captured image when a defined area of interest within the target captured image approaches the edge of the target captured image and configured to provide a pre-emptive user output when the sub-set of pixels approaches an edge of the set of available pixels.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 22, 2013
    Inventors: Ossi Mikael KALEVO, Matti Sakari Hamalainen, John Samuels, Juha H. Alakarhu, Euan James Barron, Marko Torvinen
  • Patent number: 8198578
    Abstract: An apparatus includes an array of sub-diffraction limit-sized light receptors formed in a substrate having a light receiving surface. Each light receptor may be configured to output a binary valued bit element and to change state between an off-state and an on-state by the absorption of at least one photon. The apparatus further includes an optical filter structure disposed over the light receiving surface, the optical filter structure having of an array of filter pixels each having an associated passband spectral characteristic. A data element obtained from the array of sub-diffraction limit-sized light receptors is composed of a plurality of the bit elements output from a plurality of light receptors that underlie filter pixels having at least two different passband spectral characteristics.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: June 12, 2012
    Assignee: Nokia Corporation
    Inventors: Samu T. Koskinen, Ossi M. Kalevo, Tero Rissa, Juha H. Alakarhu
  • Patent number: 8179457
    Abstract: An apparatus includes an array of sub-diffraction limit-sized light receptors formed in a substrate having a light receiving surface. Each receptor is configured to output an n-bit element and to change state based on the absorption of at least one photon (n is an integer >0). The apparatus includes an optical filter structure disposed over the light receiving surface, the structure having an array of filter pixels, each having an associated passband spectral characteristic. A data element obtained from the array of receptors is generated from a combination of a plurality of the n-bit elements output from a plurality of light receptors that underlie filter pixels having at least two different passband spectral characteristics. The filter pixels having at least two different passband spectral characteristics form a gradient filter wherein bandpass regions increase when moving from a central region of the gradient filter towards an edge region.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 15, 2012
    Assignee: Nokia Corporation
    Inventors: Samu T. Koskinen, Ossi M. Kalevo, Tero Rissa, Juha H. Alakarhu
  • Patent number: 8134115
    Abstract: An apparatus includes an array of sub-diffraction limit-sized light receptors formed in a substrate having a light receiving surface. Each light receptor may be configured to output a scalar valued multi-bit element and to change state based on the absorption of at least one photon. The apparatus further includes an optical filter structure disposed over the light receiving surface, the optical filter structure having an array of filter pixels each having an associated passband spectral characteristic. A data element obtained from the array of sub-diffraction limit-sized light receptors is composed of a combination of a plurality of the multi-bit elements output from a plurality of light receptors that underlie filter pixels having at least two different passband spectral characteristics.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 13, 2012
    Assignee: Nokia Corporation
    Inventors: Samu T. Koskinen, Ossi M. Kalevo, Tero Rissa, Juha H. Alakarhu
  • Publication number: 20100328456
    Abstract: An apparatus, method and software construct an image of a scene by determining distance information to an object in a scene; and using the distance information to correct parallax error when combining at least two images of the object which were captured from different viewpoints. A single image of the scene from the combining is then output, with the object corrected for parallax error. In one embodiment the distance information is input from an autofocus mechanism of a multi-camera imaging system, and in another the distance information is derived from one of an object recognition algorithm or a scene analysis algorithm. The two (or more) images that are combined are captured preferably on different lenslet cameras of the same multi-camera imaging system, each of which sees the object in the scene from a different viewpoint.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Inventor: Juha H. Alakarhu
  • Publication number: 20100320368
    Abstract: An apparatus includes an array of sub-diffraction limit-sized light receptors formed in a substrate having a light receiving surface. Each light receptor may be configured to output a scalar valued multi-bit element and to change state based on the absorption of at least one photon. The apparatus further includes an optical filter structure disposed over the light receiving surface, the optical filter structure having an array of filter pixels each having an associated passband spectral characteristic. A data element obtained from the array of sub-diffraction limit-sized light receptors is composed of a combination of a plurality of the multi-bit elements output from a plurality of light receptors that underlie filter pixels having at least two different passband spectral characteristics.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 23, 2010
    Inventors: Samu T. Koskinen, Ossi M. Kalevo, Tero Rissa, Juha H. Alakarhu
  • Publication number: 20100321542
    Abstract: An apparatus includes an array of sub-diffraction limit-sized light receptors formed in a substrate having a light receiving surface. Each receptor is configured to output an n-bit element and to change state based on the absorption of at least one photon (n is an integer >0). The apparatus includes an optical filter structure disposed over the light receiving surface, the structure having an array of filter pixels, each having an associated passband spectral characteristic. A data element obtained from the array of receptors is generated from a combination of a plurality of the n-bit elements output from a plurality of light receptors that underlie filter pixels having at least two different passband spectral characteristics. The filter pixels having at least two different passband spectral characteristics form a gradient filter wherein bandpass regions increase when moving from a central region of the gradient filter towards an edge region.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 23, 2010
    Inventors: Samu T. Koskinen, Ossi M. Kalevo, Tero Rissa, Juha H. Alakarhu
  • Publication number: 20100320369
    Abstract: An apparatus includes an array of sub-diffraction limit-sized light receptors formed in a substrate having a light receiving surface. Each light receptor may be configured to output a binary valued bit element and to change state between an off-state and an on-state by the absorption of at least one photon. The apparatus further includes an optical filter structure disposed over the light receiving surface, the optical filter structure having of an array of filter pixels each having an associated passband spectral characteristic. A data element obtained from the array of sub-diffraction limit-sized light receptors is composed of a plurality of the bit elements output from a plurality of light receptors that underlie filter pixels having at least two different passband spectral characteristics.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 23, 2010
    Inventors: Samu T. Koskinen, Ossi M. Kalevo, Tero Rissa, Juha H. Alakarhu
  • Publication number: 20100321511
    Abstract: At a digital imaging system, a first set of samples of a scene are digitally captured with a first array of image sensing nodes while simultaneously a second set of samples of the scene are digitally captured with a second array of image sensing nodes. Image sensing nodes of the second array are oriented in a rotated position relative to the image sensing nodes of the first array. The first and second sets of samples are integrated with one another while correcting for the rotated orientation of the image sensing nodes of the second array relative to the image sensing nodes of the first array, and from that integration is output a high resolution image. In specific embodiments, there may be additional arrays of image sensing nodes, different arrays may sample different size portions of the scene, and be also rotated relative to other sensing node arrays.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 23, 2010
    Inventors: Samu T. Koskinen, Juha H. Alakarhu, Eero Salmelin