Cover (telecommunications)

About: Cover (telecommunications) is a research topic. Over the lifetime, 4261 publications have been published within this topic receiving 30755 citations.

High payload steganography mechanism using hybrid edge detector

Abstract: Steganography is the art and science of hiding data into information. The secret message is hidden in such a way that no one can apart from the sender or the intended recipient. The least significant bit (LSB) substitution mechanism is the most common steganographic technique for embedding a secret message in an image with high capacity, while the human visual system (HVS) would be unable to notice the hidden message in the cover image. In this paper, besides employing the LSB substitution technique as a fundamental stage, we take advantage of edge detection technique. The experimental results show that the proposed scheme not only achieves high embedding capacity but also enhances the quality of the stego image from the HVS by an edge detection technique. Moreover, based on that the secret message is replaced with different LSBs, our scheme can effectively resist the image steganalysis.

Cover for Portable Electronic Device

Abstract: A cover for a portable electronic device is disclosed. The cover can include at least one electrical component. For example, in one embodiment, an electrical component can be embedded in the cover. When the cover is placed on or mated with the portable electronic device, the electrical component embedded in the cover is able to interact with electrical circuitry of the portable electronic device. Advantageously, the cover can not only provide a protective and/or ornamental covering for the portable electronic device but can also augment the electrical capabilities of the portable electronic device.

The impact of information technology on energy consumption and carbon emissions

Abstract: In this article the authors evaluate the impact of different sectors of information and communication technologies (ICT) on energy consumption and CO2 emissions. ICT is understood to cover computer and peripheral equipment including local area networks, telecommunication equipment and networks, and data centers.

Apparatus and method for locating, tracking, controlling and recognizing tagged objects using active RFID technology

Abstract: A real-time automated data security system protects both data and devices from loss, theft, and unauthorized access or activity. A miniature active RFID circuit is embodied in tags, area tags, controllers, USB sticks and a universal interface software for computers (i.e., Java), smart phones, and gateway boxes written to interface with the system. These devices are customizable and can link in arrays to cover large areas, use sensors, and scale up in module configurations to meet any need. The system is independent of electricity, GPS, satellites, the Internet, other software, and IT personnel. Its novel software, inside the tags, area tags and controllers is inaccessible and cannot be copied. Wireless transmissions are encrypted to military grade levels and packets are never repeated, making it unhackable, even by brute force attack. A unique battery-conserving protocol ensures good range and long battery life. The system has the ability to ignore copied packages or relaying by attackers, and to prevent of unauthorized access to USB sticks by proximity checks to the active RFID circuit.

System and method of making payments using an electronic device cover with embedded transponder

Abstract: A changeable cover for an electronic device and method of using same in a payment system is provided. The cover has a transponder responsive to interrogation by an electric field. The cover provides an electronic identification number and other information in response to the interrogation signal. Also provided is a system for making payments, comprising at least one mobile station ( 4 ) which has an associated cover ( 100 ) for providing local data transfer. The system also comprises at least one point of sale terminal or the like, which has a second transceiver for providing data transfer.