Showing papers on "Cover (telecommunications) published in 2008"

Authentication of secret information in image Steganography

Abstract: In recent years, steganography and steganalysis are two important areas of research that involve a number of applications. These two areas of research are important especially when reliable and secure information exchange is required. Steganography is an art of embedding information in a cover image without causing statistically significant variations to the cover image. Steganalysis is the technology that attempts to defeat steganography by detecting the hidden information and extracting. In this paper we propose an image steganography that can verify the reliability of the information being transmitted to the receiver. The method can verify whether the attacker has tried to edit, delete or forge the secret information in the stego-image. The technique embeds the hidden information in the spatial domain of the cover image and uses two special AC coefficients of the discrete wavelet transform domain to verify the veracity (integrity) of the secret information from the stego image. The analysis shows that the BER and PSNR is improved in the case of DWT than DCT.

A secure covert communication model based on video steganography

Abstract: This paper presents a steganographic model which utilizes cover video files to conceal the presence of other sensitive data regardless of its format. The model presented is based on pixel-wise manipulation of colored raw video files to embed the secret data. The secret message is segmented into blocks prior to being embedded in the cover video. These blocks are then embedded in pseudo random locations. The locations are derived from a re-orderings of a mutually agreed upon secret key. Furthermore, the re-ordering is dynamically changed with each video frame to reduce the possibility of statistically identifying the locations of the secret message blocks, even if the original cover video is made available to the interceptor. The paper also presents a quantitative evaluation of the model using four types of secret data. The model is evaluated in terms of both the average reduction in peak signal to noise ratio (PSNR) compared to the original cover video; as well as the mean square error (MSE) measured between the original and steganographic files averaged over all video frames. Results show minimal degradation of the steganographic video file for all types of data, and for various sizes of the secret messages. Finally, an estimate of the embedding capacity of a video file is presented based on file format and size.

Protective cover for portable communication device

Abstract: A protective cover for a portable communication device includes a battery cover and a protective cover part coupled with the battery cover. The protective cover is detachably coupled with the portable communication device, and the protective cover part is disposed at a front surface of a display unit part of the portable communication device when the protective cover is coupled with the portable communication device. The portable communication device being turned off/on when the portable communication device is attached to/detached from the protective cover.

Acoustic reconfiguration devices and methods

Abstract: Disclosed is a portable audio device and a quick-disconnect passive acoustic cover. The portable audio device includes a housing and a speaker supported by the housing that have a first system frequency response. The speaker of the portable audio device has a first side and a second side associated with a first audio port and a second audio port, associated with a first acoustic load and a second acoustic load respectively. The housing is configured to removably receive the cover which is configured to redefine at least one of the first acoustic load and the second acoustic load to replace the first system frequency response with a second system frequency response. The cover provides one or more additional surrounding structures, which replace the inherent frequency response with an improved frequency response. Different embodiments of the disclosed cover provide a plurality of sound quality enhancement options to a user.

Green Wave Traffic Optimization - A Survey

Abstract: The objective of this survey is to cover the research in the area of adaptive traffic control with emphasis on the applied optimization methods. The problem of optimizing traffic signals can be viewed in various ways, depending on political, economic and ecological goals. The survey highlights some important conflicts, which support the notion that traffic signal optimization is a multi-objective problem, and relates this to the most common measures of effectiveness. A distinction can be made between classical systems, which operate with a common cycle time, and the more flexible, phase-based, approach, which is shown to be more suitable for adaptive traffic control. To support this claim three adaptive systems, which use alternatives to the classical optimization procedures, are described in detail.

3D Coverage Analysis under Heterogeneous Deployment Strategies in Wireless Sensor Networks

Abstract: In this paper, we propose novel deployment strategies for Wireless Sensor Networks and study 3D coverage under these heterogeneous deployment strategies. Our aim is to find answers to questions like how many sensors are needed to cover a specified 3D terrain at a specified coverage percentage. Furthermore, the effect of sleeping on coverage is also studied. Simulation results demonstrate that depending on application requirements an appropriate deployment strategy can be selected to obtain required 3D coverage.

An outdoor distribution system and its networking method

Abstract: This invention discloses an indoor distribution system and its networking method, in which, the system includes BBU, RHUB providing routes for baseband information and RRU to realize a requirement supporting indoor cover of large volume, which is convenient for expanding volume and reducing operation cost. This invention also provides a networking method.

Mountable writing assembly

Abstract: A mountable writing assembly includes a cover member, a visually transparent writing member, a replaceable sheet for displaying personalized information or images, and a backing member removably retained in the cover member. A method of allowing a user to create a customized dry-erase board is also disclosed.

A novel design of arbitrary shaped cells for efficient coverage from high altitude platforms

Abstract: This paper proposes a novel beamforming technique to form an arbitrary-shaped cell for the high altitude platforms (HAPs) mobile communications. The new technique is based on pattern summation of individual low-sidelobe narrow-beams which constitute the desired cell pattern weighted by an amplitude correcting function. The new cell pattern can be adapted to cover the main highways forming worm-shaped cells which may cover the highway for long distances up 100 km and it will has an important role in reducing frequent handoffs and signaling traffic of location updating from moving users over the long highways.

Watermarking using neural network and hiding the trained network within the cover image

Abstract: The major source of communication in present world is digital media. As it is quite easy to manipulate a digital media, it becomes essential to protect the digital information by legitimate means. Digital Watermarking has evolved as one of the latest technologies for digital media protection. Many techniques based on spatial and frequency domain have been developed in the recent past and are being used for effective watermarking. However, there is always a tradeoff between robustness and imperceptibility features of watermarking offered by these techniques. This paper offers a technique based on Backpropagation Neural Network to train a given cover image to produce a desired watermark image. At the end of the training, the entire trained neural network weights has been successfully hidden within the cover image itself. This makes it possible to supply only the cover image without any external weight files. By extraction techniques, the weights can be derived from the cover image and used to reconstruct the trained Neural Network again which in turn converts the cover image into desired watermark image. The technique for hiding the weights into the cover image has been designed in such a way that it does not produce visual deterioration of the original cover image. This method is extra secure as it leads to watermarking indirectly.

Method and apparatus for wrapping a shipment

Abstract: Embodiments of the invention relate to a cover, a method of covering, and a cover system to be used with shipments of products transported by air with ULDs. The dimensions of the cover system can vary depending on the ULD they are designed to be used with. The cover system can also be adapted to any individual skid such as wooden or plastic pallets used for smaller loads used in air transport or any other mode of transportation. The cover system can include one or multiple parts that wrap the shipment. Each part of the cover system can be made of one or more layers. Each layer can be made of a single material or a combination of different materials, and different layers can incorporate different materials. The different parts of the cover can be made of different materials or different combination of materials. In specific embodiments, materials used for the cover system are Radio Frequency Identification (RFID) friendly. The cover system provides thermal protection to temperature-sensitive products in or on the ULD. The cover system maintains the proper relative humidity level and gas concentrations (oxygen, carbon dioxide and ethylene) for horticultural product loads. The cover system can also have antimicrobial properties. In addition, the cover system decreases the amount of water vapor released in the cargo holds which is known to affect the reliability of the aircraft smoke detection system and to cause false fire alarms.

Cover deploying system utilizing active material actuation

Abstract: A system for deploying and stowing a cover, including a mechanical assembly coupled to the cover, preferably comprising a plurality of deploy arms and synchronization means, and reconfigurable between deployed and stowed conditions, and further including an actuator presenting an active material element operable to undergo a change, when activated, and operable to cause the assembly to reconfigure as a result of the change

Functional protective cover for portable audio and video devices

Abstract: Described herein is a protective cover composed of a semi-rigid wrap that adheres to a handheld audio and/or video device. The cover preserves the integrity of the design of the handheld device as well as allows the end-user to operate the device without removing the cover.

Performance Analysis of Real Traffic Carried with Encrypted Cover Flows

Abstract: Encrypted protocols, such as SSL, are becoming more prevalent because of the growing use of e-commerce, anonymity services, and secure authentication. Likewise, traffic analysis is becoming more common because it is often the only way to analyze these protocols. Though there are many valid uses for traffic analysis (such as network policy enforcement and intrusion detection), it can also be used to maliciously compromise the secrecy or privacy of a user. While the payload can be strongly protected by encryption, analysis of traffic patterns can yield information about the type and nature of traffic. In this paper we use simulation and an analytic model to examine the impact on user experience of a scheme that masks the behavior of real traffic by embedding it in synthetic, encrypted, cover traffic. This point provides a novel context where we observe the synergy of simulation and analytic modeling. We show that a detailed simulation model of network traffic characteristics can be used to estimate the parameters of an analytic model of tunneling.

Articles suitable for use as a medical device cover and methods of making and using the same

Abstract: Article suitable for use as a medical device cover are disclosed. Methods of making and using the articles are also disclosed.

Data communication system

Abstract: A transmission medium (2) such as a human body for transmitting an information signal via an electric field, a mobile device (1) including a sender for imparting the electric field in which the information signal is modulated to the transmission medium (2), a stationary device (3) including a receiver for detecting the electric field via the transmission medium (2) and demodulating the electric field into the information signal, a floor cover (4A) arranging the stationary device (3) and also being contacted by the transmission medium (2) are provided, the floor cover (4) has a communication area (41) contacted by the transmission medium (2) where a data communication is performed between the mobile device (1) and the stationary device (3), and the communication area (41) is in a state of being electrically floating with respect to the floor cover (4A).

Cover for Gates and Turnstiles

Abstract: A turnstile cover that has a body portion that is for being positioned on the arms of a turnstile. The cover has an outer layer with and exterior surface has an inner layer of padding, or the cover may be a single layer. The cover has an opening and is hollow, such that it may be slid over the arm of a turnstile. The padding advantageously provides for reduced impact when a person walks into the arm of the turnstile. The turnstile cover may advantageously be slid onto the arms of turnstiles found in subways, sporting venues, schools, etc. The exterior surface has indicia, for example printed indicia that may include advertising, logos, messages, public service messages, sales, and other desirable indicia. The cover and/or space on the cover is sold to interested companies and/or individuals for a fee. A traffic control gate cover is also provided.

Printer, printer control method, storage medium, and computer program

Abstract: PROBLEM TO BE SOLVED: To provide a printer which enables a user to easily distinguish a correspondence between a retained print job for a cover and print job for body text. SOLUTION: A plurality of jobs including: a cover job including print data for a cover in a book binding treatment; and a body text job including print data for a body text to be bound by the cover, are retained by a retaining means. A display control means makes control to display, on a display part, the correspondence indicating that the cover job and the body text job correspond to each other, for a user to distinguish the correspondence. COPYRIGHT: (C)2009,JPO&INPIT

Tamper evident enclosure for the storage and transport of documents

Abstract: An apparatus for storage and transport of documents such as bank notes, visa slips, gift tokens, cheques and the like is disclosed. The apparatus comprises a frame spanned by flexible material and a cover plate slideable therealong to close the frame, the cover plate having a leading edge comprising a first member shaped to form an irreversible lock with a correspondingly shaped second member on the frame.

Information Hiding Based on Image Morphing

Abstract: Recently, we proposed a new technique for information hiding based on image morphing. Since the cover message can be changed after embedding the secret message, the cover rate of the new technique is much larger than that of existing techniques. However, this technique has two fatal problems. First, the stegodata may not look natural due to inaccurate definition of the feature lines. Second, the secret image might be estimated to some extent from the stegodata. In this paper, we propose several methods to solve these two problems. First, to make the stegodata more natural, we propose to scale down the secret message before calculating the stegodata. To solve the second problem, we propose to encrypt the secret message first, and then hide it into the warped cover image. To increase the security further, we also propose to separate the stego key and the secret message.

Electronic device with internal array microphone affixed to rear cover of display

Abstract: An electronic device includes a display, a plurality of chambers, and a microphone array. The display includes a front cover and a rear cover affixed to the front cover. The plurality of chambers is formed on the rear cover. The microphone array includes a plurality of microphones disposed in the chambers.

Fiber optic parking dust cover

Abstract: A cover is described that includes an opening for the cover to receive a latch of a pluggable device to secure the pluggable device in the cover. The cover includes a retaining latch for the cover to hold the cover within an opening of a device. The cover, when inserted into the opening of the device, provides dust protection for the opening of the device and a parking location for the pluggable device. A method is also described for parking a fiber optic connector in a cover and latching the cover into a cage of a communications device.

Peripheral telecommunications device having movable cover with integrated antenna

Abstract: A computer peripheral telecommunications device having an electronic interface for connection to a computer and being configured for adding wireless telecommunication functionality to the computer, the device comprising a movable cover portion for covering the electronic interface while not in use and an antenna integrated in the movable cover portion.

Manhole cover security and removal

Abstract: A manhole cover includes a security device, preferably located beneath an upper surface thereof. A cover removing apparatus includes a magnetic element to hold the cover, when a pin of the apparatus is engaged with the security device of the cover. A push force, which may be applied through a port in the upper surface of the cover, for example, by the pin member, can deform, and thereby unlock, a spring-loaded locking member of the security device. The security device may further include at least one elongate member, which is caused to move from a first position to a second position, by the push force, in order to disengage the cover from a manhole, so that the cover may be removed from the manhole.

Land use/cover change using Remote Sensing and Geographic Information Systems : Pic Macaya National Park, Haiti

Abstract: ...................................................................................................................... iii AKNOWLEDGEMENTS ................................................................................................... iv TABLE OF CONTENTS .................................................................................................... v LIST OF TABLES ............................................................................................................ viii LIST OF FIGURES ........................................................................................................... ix

Mobile terminal device, cover, content distribution system, server, and content distribution method

Abstract: [PROBLEMS] To provide a mobile terminal device capable of obtaining information on a cover mounted on the mobile terminal device, the cover, a system for distributing contents using the mobile terminal device and the cover, a server, and a method for distributing the contents. [MEANS FOR SOLVING PROBLEMS] A cover (30) has a contact-type IC chip (31) disposed at a predetermined position, and pertinent information relating to the cover (30) is stored in the IC chip (31). A mobile phone (10) includes a contact-type chip reader (5) that contacts the IC chip (31) when the cover (30) is mounted on a mounting portion (4) and reads out the pertinent information. The chip reader (5) is provided at a position of the mobile phone (10) corresponding to the position at which the IC chip (31) of the cover (30) is provided, and contacts with the IC chip (31) when the cover (30) is mounted. This enables the chip reader (5) to read out the pertinent information when the cover (30) is mounted on the mounting portion (4).

System, computer readable medium, and method for authorizing purchase using on-demand prepaid card

Abstract: A system, computer readable medium, and method of receiving a primary authorization request at a first authorization switch using a prepaid card that lacks adequate funds in the prepaid account to cover the requested purchase amount, and initiating a secondary authorization request using a funding account identifier associated with a funding account that does contain adequate funds to cover the requested purchase amount.

Image data transmitting apparatus, server apparatus, image data transmitting system, and program

Abstract: The image data transmitting apparatus acquires the address book data corresponding to the user or such data and the transmittal cover letter data from the server apparatus, selects, out of the acquired information on destinations, the destination according to selecting operation by the user, generates transmittal cover letter image data based on the transmittal cover letter data related to the selected destination and attaches the image data to be transmitted as second and subsequent pages, thereby generating the image data with the transmittal cover letter attached thereto. While thus generated image data with the transmittal cover letter attached thereto is transmitted to the destination, transmission is prohibited of image data other than thus generated image data with the transmittal cover letter attached thereto.

Traffic information providing device, traffic information providing system, transmission method of traffic information, and demanding method of traffic information

Abstract: PROBLEM TO BE SOLVED: To expand the cover rate of probe data providing area together with complementary data, by building a mechanism for previously distinguishing the link having low correlation. SOLUTION: This traffic information providing device 10 uses the projection norm of the link to feature space as an index for determining the propriety of the complement, previously performs the filtering, informs a probe terminal 20 of complement impossible links, and collects them as a priority upload object of measured probe data from the probe terminal 20. COPYRIGHT: (C)2008,JPO&INPIT