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356results about How to "Data Security" patented technology

Authentication watermarks for printed objects and related applications

The disclosure describes systems for creating and authenticating printed objects using authentication and copy detection watermarks. For example, one verification system includes a watermark decoder and a verification module. The watermark decoder detects a copy detection watermark in a printed object to determine whether the printed object has been reproduced. The verification module processes a message decoded from an authentication watermark on the printed object to authenticate the printed object or bearer of the printed object. The authentication and copy detection watermarks may be implemented as the same or different watermarks. For example, the copy detection watermark may be a fragile watermark that carries the message and that degrades in response to a reproduction operation, such as photocopying or scanning and then reprinting the object. Alternatively, the authentication and copy detection watermarks may be separate watermarks embedded in an image that is printed on the object. The authentication watermark, in some applications, includes an identifier that links the object to a database entry with related information about the object. This related information can be used to check the bearer of the object by comparing it with attributes of the bearer (such as a user ID or photo) or the validity of the object by comparing it with attributes that are visible or machine readable on the object.
Owner:INTUIT INC

Authentication watermarks for printed objects and related applications

The disclosure describes systems for creating and authenticating printed objects using authentication and copy detection watermarks. For example, one verification system includes a watermark decoder and a verification module. The watermark decoder detects a copy detection watermark in a printed object to determine whether the printed object has been reproduced. The verification module processes a message decoded from an authentication watermark on the printed object to authenticate the printed object or bearer of the printed object. The authentication and copy detection watermarks may be implemented as the same or different watermarks. For example, the copy detection watermark may be a fragile watermark that carries the message and that degrades in response to a reproduction operation, such as photocopying or scanning and then reprinting the object. Alternatively, the authentication and copy detection watermarks may be separate watermarks embedded in an image that is printed on the object. The authentication watermark, in some applications, includes an identifier that links the object to a database entry with related information about the object. This related information can be used to check the bearer of the object by comparing it with attributes of the bearer (such as a user ID or photo) or the validity of the object by comparing it with attributes that are visible or machine readable on the object.
Owner:INTUIT INC

Vehicle remote data acquisition system based on CAN (Controller Area Network) bus

The invention discloses a vehicle remote data acquisition system based on a CAN (Controller Area Network) bus, comprising a remote server and at least one vehicle-mounted remote data acquisition device, wherein each vehicle-mounted remote data acquisition device comprises a processor module, a CAN bus communication module, a voltage comparison module and a radio communication module; input signals of the voltage comparison modules are switching value signals and pulse value signals which are output by vehicle equipment; analog value signals output by the vehicle equipment are processed by an engine ECU (Electronic Control Unit), then transmitted to the CAN bus and received by the CAN bus communication modules; the CAN bus communication module are also used for receiving equipment signals hung on the CAN bus, and the output ends of the CAN bus communication modules are connected with the processor modules through an SPI (Serial Peripheral Interface) bus; and the radio communication modules are used for carrying out radio communication with the server. The system can acquire various information of the vehicle equipment on a plurality of vehicles, data is transmitted to the server for storing through radio communication, and reliable references are provided for the maintenance and the management of the vehicles according to acquired data.
Owner:HIGER

Big dipper and 4G-based unmanned aerial vehicle

The invention discloses a big dipper and 4G-based unmanned aerial vehicle which comprises an unmanned aerial vehicle body, wherein a main controller, a big dipper system global positioning device, a data encrypting device, a data processing device, an aerial photo camera, an automatic driving device and a first wireless communication device are arranged on the unmanned aerial vehicle body, and the main controller is respectively connected with the big dipper system global positioning device, the data encrypting device, the data processing device, the aerial photo camera, the automatic driving device and the first wireless communication device. The big dipper and 4G-based unmanned aerial vehicle further comprises a ground base station, wherein the ground base station is provided with a second wireless communication device and a data decryption and analysis device, the data decryption and analysis device is connected with the second wireless communication device, and the first wireless communication device is wirelessly connected with the second wireless communication device through a 4G network. The big dipper and 4G-based unmanned aerial vehicle disclosed by the invention has the characteristics of safety data, immediate monitoring, wide use range and the like.
Owner:WUZHOU UNIV

Monitoring system applicable to different types of wind photovoltaic storage microgrid systems

The invention relates to a distributed generation microgrid system, in particular to a monitoring system applicable to different types of wind photovoltaic storage microgrid systems. The monitoring system comprises a communication conversion module, a communication bus, total communication conversion modules, a monitoring work station, a database server and a remote Web server, wherein the controller of each subsystem of the wind photovoltaic storage microgrid system is connected with different communication conversion modules in a one-to-one correspondence mode; the communication conversion modules are connected with the total communication conversion module through the communication bus; and the total communication conversion module is connected with the monitoring work station, the database server and the remote Web server. The monitoring system has the effects of controlling, monitoring and detecting a wind generating set, a diesel engine unit, a photovoltaic generating set, an energy storage device, a power distribution measuring and control device, a protective device and the like of the whole wind photovoltaic storage microgrid system, so that the microgrid system can stably operate under a grid mode and an island mode. The monitoring system can control each subsystem of the microgrid and detect the operation parameters of the microgrid.
Owner:东方电气集团国际合作有限公司
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