Patents by Inventor Dennis W. Purcell
Dennis W. Purcell 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).
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Publication number: 20220174245Abstract: Imaging devices and methods for generating a color image from a low-light scene. A method incudes filtering light from the low-light scene to produce a first light channel having filtered light filtered by a first filter and a second light channel having unfiltered light. The method includes producing a first information channel and a second information channel. The first information channel includes first brightness information corresponding to the first light channel and the second information channel includes second brightness information corresponding to the second light channel. The method includes receiving the first information channel and the second information channel and assigning the first brightness information to a first color channel. The method includes assigning the second brightness information to second color channel and processing the first color channel and the second color channel to produce a full-color image stream. The method includes outputting the full-color image stream.Type: ApplicationFiled: February 18, 2022Publication date: June 2, 2022Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
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Patent number: 11070773Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.Type: GrantFiled: June 26, 2019Date of Patent: July 20, 2021Assignee: Chromatra, LLCInventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Publication number: 20190379865Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.Type: ApplicationFiled: June 26, 2019Publication date: December 12, 2019Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
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Patent number: 10341621Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.Type: GrantFiled: March 13, 2018Date of Patent: July 2, 2019Assignee: Chromatra, LLC.Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Publication number: 20180241974Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.Type: ApplicationFiled: March 13, 2018Publication date: August 23, 2018Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
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Patent number: 9955127Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.Type: GrantFiled: October 30, 2015Date of Patent: April 24, 2018Assignee: CHROMATRA, LLC.Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Publication number: 20160073067Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.Type: ApplicationFiled: October 30, 2015Publication date: March 10, 2016Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
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Patent number: 9177988Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.Type: GrantFiled: December 17, 2012Date of Patent: November 3, 2015Assignee: CHROMATRA, LLC.Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Patent number: 8791984Abstract: The systems and methods described herein provide imaging systems for imaging a scene. The imaging system includes an optical head, a processor, and an analog communication port. The processor receives captured digital image data from the optical head. The processor sends the image data to the analog communication port to generate an analog video stream that is protocol compatible with typical closed-circuit television (CCTV) networks, such as PAL or NTSC. The imaging system has a physical interface that allows the system to plug into a conventional CCTV network. To generate a video stream that is protocol compatible with the CCTV network, the analog communication port may down sample the digital image data to generate a PAL or NTSC compatible image. The down sampled digital image data is converted to a compliant analog signal and delivered over the physical layer of the CCTV network for display on a conventional television monitor.Type: GrantFiled: February 18, 2011Date of Patent: July 29, 2014Assignee: Scallop Imaging, LLCInventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Publication number: 20140153825Abstract: Systems and methods for processing data representative of a full color image. Such systems may comprise the steps of assisting a color blind person to indicate portions of an image which to their color-deficient vision are indistinguishable, and altering the image to cause those portions to become distinguishable and identifiable.Type: ApplicationFiled: February 6, 2014Publication date: June 5, 2014Inventors: Peter W. J. Jones, Dennis W. Purcell
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Publication number: 20140085410Abstract: The systems and methods described herein provide imaging systems with multiple imaging sensors arranged in an optical head that create a seamless panoramic view by reducing parallax distortion and adaptively adjusting exposure levels of the recorded images. In particular, an optical head is described with a stacked configuration of CCD imaging sensors in which charge is transferred from a sensor to a processor beginning with an array of photosensitive elements nearest another sensor.Type: ApplicationFiled: March 26, 2013Publication date: March 27, 2014Applicant: TENEBRAEX CORPORATIONInventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Patent number: 8564640Abstract: The systems and methods described provide an imaging system that allows multiple sensors to record images at their respective best exposures values and adaptively altering the exposure of the images recorded to create a seamless 360-degree view. In particular, the systems and methods described herein include determining exposure values for each column of photosensitive elements in a sensor by interpolating between the best exposure values of adjacent sensors.Type: GrantFiled: November 17, 2008Date of Patent: October 22, 2013Assignee: Tenebraex CorporationInventors: Peter W. J. Jones, Dennis W. Purcell
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Patent number: 8446509Abstract: The systems and methods for real time transmission of an image from an image sensor having a field of view to a processor for selectively adjusting a resolution of the image as a function of a viewer's focus point.Type: GrantFiled: August 9, 2007Date of Patent: May 21, 2013Assignee: Tenebraex CorporationInventors: Peter W. J. Jones, Dennis W. Purcell
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Publication number: 20110234807Abstract: The systems and methods described herein provide imaging systems for imaging a scene. The imaging system includes an optical head, a processor, and an analog communication port. The processor receives captured digital image data from the optical head. The processor sends the image data to the analog communication port to generate an analog video stream that is protocol compatible with typical closed-circuit television (CCTV) networks, such as PAL or NTSC. The imaging system has a physical interface that allows the system to plug into a conventional CCTV network. To generate a video stream that is protocol compatible with the CCTV network, the analog communication port may down sample the digital image data to generate a PAL or NTSC compatible image. The down sampled digital image data is converted to a compliant analog signal and delivered over the physical layer of the CCTV network for display on a conventional television monitor.Type: ApplicationFiled: February 18, 2011Publication date: September 29, 2011Applicant: Tenebraex CorporationInventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Publication number: 20110229023Abstract: Systems and methods for processing data representative of a full color image. Such systems may comprise the steps of assisting a color blind person to indicate portions of an image which to their color-deficient vision are indistinguishable, and altering the image to cause those portions to become distinguishable and identifiable.Type: ApplicationFiled: March 28, 2011Publication date: September 22, 2011Applicant: Tenebraex CorporationInventors: Peter W. J. Jones, Dennis W. Purcell
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Patent number: 7929727Abstract: Featured is an apparatus and method for detecting an object (e.g., human, man-made object) from its background, which object may be camouflaged so as to blend the object with the background. In its broadest aspects the detecting method includes viewing an area while selectively and varyingly changing a sensitivity of a viewing device to certain wavelengths of light lying in any one of the ultraviolet (UV) range, the visible range or the near and/or far infrared and determining the presence of an object when a visual difference between the object and background is discerned when the sensitivity of the viewing device is changed to a certain mixture of wavelengths of light. The method further includes determining the presence of an object when a visual difference is observed between the object and the background and no discernable difference is observed one sensitivity of the viewing device is changed to least another mixture of wavelengths.Type: GrantFiled: July 25, 2003Date of Patent: April 19, 2011Assignee: Tenebraex CorporationInventors: Peter W. J. Jones, Dennis W. Purcell
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Patent number: 7916152Abstract: Systems and methods for processing data representative of a full color image. Such systems may comprise the steps of assisting a color blind person to indicate portions of an image which to their color-deficient vision are indistinguishable, and altering the image to cause those portions to become distinguishable and identifiable.Type: GrantFiled: March 22, 2007Date of Patent: March 29, 2011Assignee: Tenebraex CorporatonInventors: Peter W. J. Jones, Dennis W. Purcell
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Publication number: 20110069148Abstract: The systems and methods described herein are directed to multi-sensor imaging systems for imaging scenes. In particular, the systems and methods described herein are directed to multi-sensor panoramic imaging systems having cameras with lenses offset from their respective sensors. By orienting sensors and lenses in the imaging system such that their optical axes are offset from one another, images may be captured by multiple sensors and stitched together with relatively little image processing and/or data interpolation.Type: ApplicationFiled: September 22, 2010Publication date: March 24, 2011Applicant: Tenebraex CorporationInventors: Peter W. J. Jones, Dennis W. Purcell, Ellen Cargill
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Publication number: 20100103300Abstract: The systems and methods described herein relate to high resolution imaging. In particular, the systems include two or more lens assemblies for imaging a particular scene. Each lens assembly has image sensors disposed behind the lens assembly to image only a portion of the scene viewable through the lens assembly. Image sensors behind different lens assemblies image different portions of the scene. When the imaged portions from all the sensors are combined, a high resolution image of the scene is formed. Thus, multiple sensors can be combined to generate a high resolution image without prospective mismatching, and without the shortcomings associated with the border regions and packaging of the individual sensors, such as image gaps.Type: ApplicationFiled: October 26, 2009Publication date: April 29, 2010Applicant: Tenebraex CorporationInventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
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Publication number: 20090296247Abstract: An apparatus and methods for converting a monochrome night vision or other electro-optical device into one that provides a sensation of full color, including from red to blue with white and black. The method provides color images from an electro-optical device in which the image data from the electro-optical device contains brightness information of an area being viewed by the device without separate color information. Such a method includes operably coupling an optical channel system to the electro-optical device and configuring the optical channel system and arranging the optical channel system with respect to the electro-optical device so two color informational channels are provided to the viewer, whereby the two informational channels formed by said configuring and arranging of the optical channel system are such that the viewer sees a color image.Type: ApplicationFiled: March 10, 2009Publication date: December 3, 2009Applicant: Tenebraex CorporationInventors: Peter W. J. Jones, Dennis W. Purcell