公开(公告)号：US20150229611A1

公开(公告)日：2015-08-13

申请号：US14614241

申请日：2015-02-04

Applicant: Infosys Limited

Inventor： Kulvaibhav Kaushik ,  Vijayaraghavan Varadharajan ,  Rajarathnam Nallusamy

IPC: H04L29/06 ,  H04L9/08

CPC classification number: H04L63/0281 ,  H04L9/0825 ,  H04L9/30 ,  H04L63/0428 ,  H04L63/0435 ,  H04L63/0478 ,  H04L2209/76

Abstract: A method and system for a multi-user searchable encryption system over ordered keywords is disclosed. The system includes a key generation server which issues a primary key to a user terminal device and a secondary key to a proxy server. A trapdoor is sent by the user terminal and received by the proxy server. The trapdoor is encrypted at the proxy server. The proxy server receives cypher text from the user terminal and sends the cypher text to the database server. A search keyword inputted by the user at the user terminal is used to perform a lookup in encrypted data.

Abstract translation: 公开了一种用于多用户可搜索加密系统的有序关键词的方法和系统。 该系统包括向用户终端设备发出主键的密钥生成服务器和代理服务器的辅助密钥。 一个陷门由用户终端发送并由代理服务器接收。 陷门在代理服务器上进行加密。 代理服务器从用户终端接收密码文本，并将密码文本发送到数据库服务器。 由用户在用户终端输入的搜索关键字用于在加密数据中执行查找。

公开(公告)号：US20150199798A1

公开(公告)日：2015-07-16

申请号：US14596986

申请日：2015-01-14

Applicant: Infosys Limited

Inventor： Sachin Mehta ,  Rajarathnam Nallusamy

IPC: G06T5/00 ,  G06T7/00 ,  G06T7/60

CPC classification number: G06T5/006 ,  G06T1/0064 ,  G06T3/0006 ,  G06T5/50 ,  G06T2207/10016

Abstract: The technique relates to a system and method for correcting geometric distortions in videos and images. To correct the one or more geometric distortions in videos, the frames of the original and distorted video are mapped at the beginning and then the features associated with the mapped frames which are insensitive to geometric distortions are identified. In case of correcting geometric distortions in images, frame mapping is not required and thus the process starts from identifying the features insensitive to geometric distortions in the original image and distorted image. Then, the geometric distortion parameters are identified from the mapped features. After that, a frame level and video level average distortion of the geometric distortion parameters are determined. Finally, the geometric distortions are corrected based on the frame level and video level average distortion value.

Abstract translation: 该技术涉及用于校正视频和图像中的几何失真的系统和方法。 为了校正视频中的一个或多个几何失真，原始和失真视频的帧在开始时映射，然后识别与对几何失真不敏感的映射帧相关联的特征。 在校正图像中的几何失真的情况下，不需要帧映射，因此该过程从识别对原始图像和失真图像中的几何失真不敏感的特征开始。 然后，从映射的特征识别几何失真参数。 之后，确定几何失真参数的帧级和视频级平均失真。 最后，基于帧级和视频级平均失真值校正几何失真。

公开(公告)号：US20140122900A1

公开(公告)日：2014-05-01

申请号：US14058106

申请日：2013-10-18

Applicant: Infosys Limited

Inventor： Kulvaibhav Kaushik ,  Vijayaraghavan Varadharajan ,  Rajarathnam Nallusamy

IPC: G06F21/60 ,  G06F17/30

CPC classification number: G06F21/6227 ,  G06F7/725 ,  G06F7/726 ,  G06F17/30109 ,  G06F17/30424 ,  G06F2221/2107 ,  H04L9/3013 ,  H04L63/0428 ,  H04L63/1441 ,  H04L67/1097

Abstract: The present invention relates to a computer-implemented method, system and computer readable medium for providing a searching over encrypted keywords in a database. The method comprises the steps of generating at least one keyword, generating a plurality of different encrypted keywords corresponding to said keyword, storing said at least one encrypted keyword in said database; generating a plurality of different trapdoors for said keyword, verifying said plurality of different trapdoors with said plurality of different encrypted keywords corresponding to said keyword and determining said keyword if said plurality of different trapdoors match with one said encrypted keyword corresponding to said keyword else determining said keyword is not found.

Abstract translation: 本发明涉及一种计算机实现的方法，系统和计算机可读介质，用于在数据库中提供对加密关键字的搜索。 该方法包括以下步骤：生成至少一个关键字，产生与所述关键字对应的多个不同的加密关键字，将所述至少一个加密的关键字存储在所述数据库中; 为所述关键字生成多个不同的陷门，用与所述关键词相对应的所述多个不同加密关键字验证所述多个不同的陷阱，并且如果所述多个不同的陷阱与所述关键字对应的所述多个不同的陷阱与所述关键字相匹配，则确定所述关键字，否则确定所述 关键字未找到。

公开(公告)号：US20140106722A1

公开(公告)日：2014-04-17

申请号：US14133588

申请日：2013-12-18

Applicant: Infosys Limited

Inventor： Sumit Kalra ,  Chinmoy Mukherjee ,  Rajarathnam Nallusamy

IPC: H04M1/725 ,  H04W4/16

CPC classification number: H04M1/72527 ,  H04B1/3833 ,  H04B2001/3811 ,  H04L67/1095 ,  H04M1/0256 ,  H04M2250/22 ,  H04W4/16 ,  H04W8/005 ,  H04W12/003 ,  H04W12/06 ,  H04W76/14 ,  H04W88/04

Abstract: Embodiments of the present invention provide a mobile device comprising a core phone with a detachable primary device. The core phone transfers an incoming call alert to the detached primary device by synchronizing the display frame buffer of the core phone with the display frame buffer associated with the detached primary device. A plurality of remote secondary devices can be paired with the core phone on request by said secondary devices to transfer an incoming call alert to said plurality of secondary devices and establish a connection after authorization with said detached primary device. The detachable primary device is usable by pairing with the core phone when the core phone is not used directly but remains in the vicinity. Important data in the primary device is synchronized with the core phone to avoid data loss when the primary device is accidentally dropped or lost or damaged.

Abstract translation: 本发明的实施例提供一种包括具有可拆卸主要装置的核心手机的移动装置。 核心电话通过将核心电话的显示帧缓冲器与与分离的主设备相关联的显示帧缓冲器同步来将传入呼叫警报传送到分离的主设备。 多个远程辅助设备可以根据所述辅助设备的请求与核心电话配对，以将来话呼叫警报传送到所述多个辅助设备，并且在所述分离的主设备授权之后建立连接。 当核心手机不直接使用但仍然在附近时，可拆卸主设备可与核心手机配对使用。 主设备中的重要数据与核心手机同步，以避免在主设备意外掉落或丢失或损坏时丢失数据。