Patents by Inventor Ajith Kamath
Ajith Kamath 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).
-
Publication number: 20220335959Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.Type: ApplicationFiled: November 22, 2021Publication date: October 20, 2022Inventors: Ravi K. Sharma, Brett A. Bradley, Yang Bai, Shankar Thagadur Shivappa, Ajith Kamath, Aparna Gurijala, Tomas Filler, David A. Cushman
-
Patent number: 10841289Abstract: A person's smartphone serves as a security token—used variously to establish the user's authorization, and to test the bona fides of the counter-party system. In one illustrative ATM arrangement, a bank's computer system and the user's smartphone share secret information across a network. The smartphone employs this shared secret to generate a corresponding image, which is displayed on its screen. The displayed image is sensed by a camera in the ATM, which sends corresponding data back to the bank computer system. The bank computer system analyzes the received data and responds by sending information to the ATM authorizing a transaction. By such arrangement, authentication of the transaction involves one-way optical communication of visual information between the ATM and the smartphone, and two-way network communication of information between the ATM and the bank computer system. A great number of other features and arrangements are also detailed.Type: GrantFiled: March 18, 2013Date of Patent: November 17, 2020Assignee: Digimarc CorporationInventor: Ajith Kamath
-
Publication number: 20180211673Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.Type: ApplicationFiled: December 20, 2017Publication date: July 26, 2018Inventors: Ravi K. Sharma, Brett A. Bradley, Yang Bai, Shankar Thagadur Shivappa, Ajith Kamath, Aparna Gurijala, Tomas Filler, David A. Cushman
-
Patent number: 9852736Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.Type: GrantFiled: April 4, 2016Date of Patent: December 26, 2017Assignee: Digimarc CorporationInventors: Ravi K. Sharma, Brett A. Bradley, Yang Bai, Shankar Thagadur Shivappa, Ajith Kamath, Aparna Gurijala, David A. Cushman
-
Publication number: 20160293172Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.Type: ApplicationFiled: April 4, 2016Publication date: October 6, 2016Inventors: Ravi K. Sharma, Brett A. Bradley, Yang Bai, Shankar Thagadur Shivappa, Ajith Kamath, Aparna Gurijala, Tomas Filler, David A. Cushman
-
Patent number: 9305559Abstract: Audio watermark encoding methods employ reversing polarity and pairwise embedding. A watermark signal is generated, mapped to pairs of embedding locations and inserted in the members of the pair with reverse polarity. The pairs of embedding locations correspond to adjacent regions or frames in time or frequency domains. A method for controlling an audio output device captures audio from the device, extracts its identity from a watermark, and modifies the operation of the device, e.g. varying watermark strength or audio loudness.Type: GrantFiled: October 15, 2013Date of Patent: April 5, 2016Assignee: Digimarc CorporationInventors: Ravi K. Sharma, Brett A. Bradley, Shankar Thagadur Shivappa, Ajith Kamath, David A. Cushman
-
Patent number: 8953084Abstract: An imaging system captures focused imagery from two or more focal planes, yet does so with relatively simple optical elements. Some arrangements involve folded optical paths, to make them more compact in size. Others enable the image sensors to be mounted in coplanar arrangement. Still others involve digital compositing, e.g., to mitigate undesired bokeh effects. A great variety of other features and arrangements are also detailed.Type: GrantFiled: May 30, 2012Date of Patent: February 10, 2015Assignee: Digimarc CorporationInventor: Ajith Kamath
-
Patent number: 8879240Abstract: Techniques are generally disclosed for controlling a release event from an electrical component. In some examples described herein, a device may include an inner packing material that is coupled to the electrical component and adapted to surround the electrical component. The inner packing material may be configured to trap gases produced by the electrical component during a release event. Additional examples described herein may include outer packing material configured to contain the inner packing material and substantially maintain a rigid shape during the release event. Further examples may include connection rods between the inner packing material and the outer packing material, wherein the connection rods are configured to resist expansion of the inner packing material. In some examples described herein, the inner packing material may be sealed to prevent a release of gas created by the release event.Type: GrantFiled: December 29, 2010Date of Patent: November 4, 2014Assignee: Empire Technology Development LLCInventor: Ajith Kamath
-
Publication number: 20140279493Abstract: A person's smartphone serves as a security token—used variously to establish the user's authorization, and to test the bona fides of the counter-party system. In one illustrative ATM arrangement, a bank's computer system and the user's smartphone share secret information across a network. The smartphone employs this shared secret to generate a corresponding image, which is displayed on its screen. The displayed image is sensed by a camera in the ATM, which sends corresponding data back to the bank computer system. The bank computer system analyzes the received data and responds by sending information to the ATM authorizing a transaction. By such arrangement, authentication of the transaction involves one-way optical communication of visual information between the ATM and the smartphone, and two-way network communication of information between the ATM and the bank computer system. A great number of other features and arrangements are also detailed.Type: ApplicationFiled: March 18, 2013Publication date: September 18, 2014Inventor: Ajith Kamath
-
Publication number: 20140142958Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.Type: ApplicationFiled: October 15, 2013Publication date: May 22, 2014Applicant: Digimarc CorporationInventors: Ravi K. Sharma, Brett A. Bradley, Yang Bai, Shankar Thagadur Shivappa, Ajith Kamath, Aparna Gurijala, Tomas Filler, David A. Cushman
-
Publication number: 20130321668Abstract: An imaging system captures focused imagery from two or more focal planes, yet does so with relatively simple optical elements. Some arrangements involve folded optical paths, to make them more compact in size. Others enable the image sensors to be mounted in coplanar arrangement. Still others involve digital compositing, e.g., to mitigate undesired bokeh effects. A great variety of other features and arrangements are also detailed.Type: ApplicationFiled: May 30, 2012Publication date: December 5, 2013Inventor: Ajith Kamath
-
Publication number: 20120274152Abstract: Techniques are generally disclosed for controlling a release event from an electrical component. In some examples described herein, a device may include an inner packing material that is coupled to the electrical component and adapted to surround the electrical component. The inner packing material may be configured to trap gases produced by the electrical component during a release event. Additional examples described herein may include outer packing material configured to contain the inner packing material and substantially maintain a rigid shape during the release event. Further examples may include connection rods between the inner packing material and the outer packing material, wherein the connection rods are configured to resist expansion of the inner packing material. In some examples described herein, the inner packing material may be sealed to prevent a release of gas created by the release event.Type: ApplicationFiled: December 29, 2010Publication date: November 1, 2012Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Ajith Kamath