Patents Assigned to Cyan Systems
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Patent number: 11810342Abstract: A mechanism for radiation detection is disclosed. An integrated circuit usable in detecting radiation includes a plurality of readout circuits is described. A readout circuit of the plurality of readout circuits includes an integration capacitor and an averaging capacitor. The integration capacitor is coupled with a pixel of a photodetector pixel array. The pixel has a pixel area. An available area less than the pixel area is usable for layout of the integration capacitor. The integration capacitor has a capacitor area less than the available area. The averaging capacitor has an averaging capacitance greater than the integration capacitance of the integration capacitor. In some aspects, the integrated circuit further includes at least one cascaded averaging circuit coupled with the averaging capacitor.Type: GrantFiled: July 28, 2022Date of Patent: November 7, 2023Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan, Kenton Veeder
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Patent number: 11637972Abstract: A method that can detect targets is described. The method includes setting an integration time for each of a plurality of readout circuits based on a speed of the target. The readout circuits are configured to read pixels in an image detector. The pixels have a pitch of less than ten micrometers. The integration time is not more than five hundred microseconds and corresponds to a subframe of a fast frame image. The method also includes performing integrations of each readout circuit based on the integration time. Thus, a plurality of subframes are provided. A number of the subframes are averaged to provide the fast frame image.Type: GrantFiled: June 25, 2020Date of Patent: April 25, 2023Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan
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Patent number: 11448483Abstract: Techniques for tracing back a projectile to the projectile origin are described. A method includes detecting projectile track(s) in image(s). Each projectile track crosses multiple pixels in each image. The projectile track(s) correspond to projectile(s). The projectile track(s) in the image(s) are translated to traceback path(s). The traceback path includes a known location and a projectile origin (e.g. the location at which the projectile originated, also termed the shooter's location).Type: GrantFiled: April 23, 2020Date of Patent: September 20, 2022Assignee: Cyan SystemsInventors: Jon Paul Curzan, John Caulfield
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Patent number: 11436823Abstract: A mechanism for radiation detection is disclosed. An integrated circuit usable in detecting radiation includes a plurality of readout circuits is described. A readout circuit of the plurality of readout circuits includes an integration capacitor and an averaging capacitor. The integration capacitor is coupled with a pixel of a photodetector pixel array. The pixel has a pixel area. An available area less than the pixel area is usable for layout of the integration capacitor. The integration capacitor has a capacitor area less than the available area. The averaging capacitor has an averaging capacitance greater than the integration capacitance of the integration capacitor. In some aspects, the integrated circuit further includes at least one cascaded averaging circuit coupled with the averaging capacitor.Type: GrantFiled: January 17, 2020Date of Patent: September 6, 2022Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan, Kenton Veeder
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SYSTEM AND METHOD FOR USING FILTERING AND PIXEL CORRELATION TO INCREASE SENSITIVITY IN IMAGE SENSORS
Publication number: 20200336682Abstract: An over sampled image sensor in which the pixel size is small enough to provide spatial oversampling of the minimum blur size of the sensor optics is disclosed. Image processing to detect targets below the typical limit of 6× the temporal noise floor is also disclosed. The apparatus is useful in detecting dimmer targets and targets at a longer range from the sensors. The inventions exploits signal processing, which allows spatial temporal filtering of the superpixel image in such manner that the Noise Equivalent Power is reduced by a means of Superpixel Filtering and Pooling, which increases the sensitivity far beyond a non-oversampled imager. Overall visual acuity is improved due to the ability to detect dimmer targets, provide better resolution of low intensity targets, and improvements in false alarm rejection.Type: ApplicationFiled: February 7, 2020Publication date: October 22, 2020Applicant: Cyan Systems, Inc.Inventor: John T. Caulfield -
System and method for using filtering and pixel correlation to increase sensitivity in image sensors
Patent number: 10567684Abstract: An over sampled image sensor in which the pixel size is small enough to provide spatial oversampling of the minimum blur size of the sensor optics is disclosed. Image processing to detect targets below the typical limit of 6× the temporal noise floor is also disclosed. The apparatus is useful in detecting dimmer targets and targets at a longer range from the sensors. The inventions exploits signal processing, which allows spatial temporal filtering of the superpixel image in such manner that the Noise Equivalent Power is reduced by a means of Superpixel Filtering and Pooling, which increases the sensitivity far beyond a non-oversampled imager. Overall visual acuity is improved due to the ability to detect dimmer targets, provide better resolution of low intensity targets, and improvements in false alarm rejection.Type: GrantFiled: January 8, 2018Date of Patent: February 18, 2020Assignee: Cyan Systems, Inc.Inventor: John T. Caulfield -
SYSTEM AND METHOD FOR USING FILTERING AND PIXEL CORRELATION TO INCREASE SENSITIVITY IN IMAGE SENSORS
Publication number: 20180160059Abstract: An over sampled image sensor in which the pixel size is small enough to provide spatial oversampling of the minimum blur size of the sensor optics is disclosed. Image processing to detect targets below the typical limit of 6× the temporal noise floor is also disclosed. The apparatus is useful in detecting dimmer targets and targets at a longer range from the sensors. The inventions exploits signal processing, which allows spatial temporal filtering of the superpixel image in such manner that the Noise Equivalent Power is reduced by a means of Superpixel Filtering and Pooling, which increases the sensitivity far beyond a non-oversampled imager. Overall visual acuity is improved due to the ability to detect dimmer targets, provide better resolution of low intensity targets, and improvements in false alarm rejection.Type: ApplicationFiled: January 8, 2018Publication date: June 7, 2018Applicant: Cyan Systems, Inc.Inventor: John T. Caulfield -
System and method for using filtering and pixel correlation to increase sensitivity in image sensors
Patent number: 9866773Abstract: An over sampled image sensor in which the pixel size is small enough to provide spatial oversampling of the minimum blur size of the sensor optics is disclosed. Image processing to detect targets below the typical limit of 6× the temporal noise floor is also disclosed. The apparatus is useful in detecting dimmer targets and targets at a longer range from the sensors. The inventions exploits signal processing, which allows spatial temporal filtering of the superpixel image in such manner that the Noise Equivalent Power is reduced by a means of Superpixel Filtering and Pooling, which increases the sensitivity far beyond a non-oversampled imager. Overall visual acuity is improved due to the ability to detect dimmer targets, provide better resolution of low intensity targets, and improvements in false alarm rejection.Type: GrantFiled: January 20, 2016Date of Patent: January 9, 2018Assignee: CYAN SYSTEMS, INC.Inventor: John T. Caulfield -
SYSTEM AND METHOD FOR USING FILTERING AND PIXEL CORRELATION TO INCREASE SENSITIVITY IN IMAGE SENSORS
Publication number: 20160142657Abstract: An over sampled image sensor in which the pixel size is small enough to provide spatial oversampling of the minimum blur size of the sensor optics is disclosed. Image processing to detect targets below the typical limit of 6× the temporal noise floor is also disclosed. The apparatus is useful in detecting dimmer targets and targets at a longer range from the sensors. The inventions exploits signal processing, which allows spatial temporal filtering of the superpixel image in such manner that the Noise Equivalent Power is reduced by a means of Superpixel Filtering and Pooling, which increases the sensitivity far beyond a non-oversampled imager. Overall visual acuity is improved due to the ability to detect dimmer targets, provide better resolution of low intensity targets, and improvements in false alarm rejection.Type: ApplicationFiled: January 20, 2016Publication date: May 19, 2016Applicant: Cyan Systems, Inc.Inventor: John T. Caulfield -
System and method for using filtering and pixel correlation to increase sensitivity in image sensors
Patent number: 9294690Abstract: An over sampled image sensor in which the pixel size is small enough to provide spatial oversampling of the minimum blur size of the sensor optics is disclosed. Image processing to detect targets below the typical limit of 6× the temporal noise floor is also disclosed. The apparatus is useful in detecting dimmer targets and targets at a longer range from the sensors. The inventions exploits signal processing, which allows spatial temporal filtering of the superpixel image in such manner that the Noise Equivalent Power is reduced by a means of Superpixel Filtering and Pooling, which increases the sensitivity far beyond a non-oversampled imager. Overall visual acuity is improved due to the ability to detect dimmer targets, provide better resolution of low intensity targets, and improvements in false alarm rejection.Type: GrantFiled: October 29, 2012Date of Patent: March 22, 2016Assignee: Cyan Systems, Inc.Inventor: John T. Caulfield -
Patent number: D998685Type: GrantFiled: February 16, 2021Date of Patent: September 12, 2023Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan