909 results about "Limited resources" patented technology

Embodiments of a system and method for providing peer-to-peer (p2p) capabilities to devices with limited resources (e.g. wireless devices). A mechanism is described that allows the devices to participate as peer nodes in p2p network environments through wired or wireless connections. In one embodiment, the p2p network environment may be implemented according to a p2p platform, and the mechanism may be interoperable with p2p platform devices in the p2p network environment. A relay/proxy node on the network may serve as an interface to the p2p environment for devices using the mechanism to participate as peers in the p2p network. The relay/proxy node may be accessed using the mechanism to perform one or more p2p network environment functions on behalf of the devices.

The present invention is directed to a system and methods for protecting a limited resource computer from malware. Aspects of the present invention use antivirus software on a general purpose computer to prevent malware from infecting a limited resource computer. Typically, antivirus software on the general purpose computer is kept “up-to-date” with the most recent software updates. When a connection is established between the limited resource computer and the general purpose computer, a signature of each application installed on the limited resource computer is transmitted to the general purpose computer. Then antivirus software on the general purpose computer compares the received signatures to known malware. Finally, the results of the scan are reported to the limited resource computer.

A computer system analysis tool and method that will allow for qualitative and quantitative assessment of security attributes and vulnerabilities in systems including computer networks. The invention is based on generation of attack graphs wherein each node represents a possible attack state and each edge represents a change in state caused by a single action taken by an attacker or unwitting assistant. Edges are weighted using metrics such as attacker effort, likelihood of attack success, or time to succeed. Generation of an attack graph is accomplished by matching information about attack requirements (specified in “attack templates”) to information about computer system configuration (contained in a configuration file that can be updated to reflect system changes occurring during the course of an attack) and assumed attacker capabilities (reflected in “attacker profiles”). High risk attack paths, which correspond to those considered suited to application of attack countermeasures given limited resources for applying countermeasures, are identified by finding “epsilon optimal paths.”

A method of controlling concurrent users of a distributed resource on a network is disclosed. In one aspect, there are one or more local lock managers executing on corresponding hosts and cooperating as a distributed lock manager. The resource is limited to a maximum number of concurrent users. A user identification for each user is associated with one host. In response to a request associated with a particular user associated with a first host, a lock is requested from a first local lock manager process executing on the first host. A related method of handling a request for a count-limited resource includes receiving a request from a client process for the computer resource. If it is determined that the request exceeds a maximum count for the resource, then it is determined whether a current time is within a retry time period of the client's first request. If it is determined the current time is within the retry time period, then it is automatically determined again whether the request exceeds the maximum count for the resource. If it is determined that the request does not exceed the maximum count, then the resource is provided to the client process.

A subject user may be automatically matched to one or more other users in an online resource-limited environment. In one embodiment, a multi-user online environment is accessed using a resource-limited device operated by the subject user. A pool of candidates from the available online users may then be generated based on their proximity in the online environment to the subject user. The various candidates within this pool may then be ranked based on a comparison of user profile matching criteria. Candidates may then be selectively added to the subject user's interaction group, which in one embodiment represents the set of online users which will be “seen” or otherwise available to the subject user for possible interaction.

To reduce bandwidth of non-scalable MPEG-2 coded video, certain non-zero AC DCT coefficients for the 8x8 blocks are removed from the MPEG-2 coded video. In one implementation, high-frequency AC DCT coefficients are removed at the end of the coefficient scan order. This method requires the least computation and is most desirable if the reduced-bandwidth video is to be spatially sub-sampled. In another implementation, the smallest-magnitude AC DCT coefficients are removed. This method may produce an undesirable increase in the frequency of occurrence of escape sequences in the (run, level) coding. This frequency can be reduced by retaining certain non-zero AC DCT coefficients that are not the largest magnitude coefficients, and by increasing a quantization scale to reduce the coefficient levels. The reduced-bandwidth video can be used for a variety of applications, such as browsing for search and play-list generation, bit stream scaling for splicing, and bit-rate adjustment for services with limited resources and for multiplexing of transport streams.

The present invention is related to electronically allocating finite or limited resources. In an embodiment, a computer system is configured to receive bids over a network from a first plurality of users for a limited number of units, the bids including associated bid amounts. A data store is operable to store the bid amounts. Program code is stored in computer readable memory and is configured to determine which bids are winning bids, determine a unit price for units associated with the winning bids, wherein the unit price associated with the winning bids is based on the lowest winning bid amount, and units can be tickets.

A robot apparatus which, by exploiting limited resources highly efficiently, is capable of making expressions matched to the motion or to complex variegated feeling or instinct states, representing the crucial information in achieving smooth communication with the human being, is disclosed. A method of expression by the robot apparatus is also disclosed. The robot apparatus expresses plural states, such as emotional states or the processing states of perceptual recognition, by a light radiating device loaded at a location of the head part of the humanoid robot apparatus walking on two legs. The light radiating device includes e.g. the color hue, saturation and patterns of light emission as expressive units represented independently of one another. A plural number of orthogonal states, that is, the emotional states and the states of perceptual recognition, are expressed simultaneously, using a plural number of the orthogonal representations of the light radiating device correlated by a unit for correlating plural reciprocally orthogonal states, derived from the own inner states or external stimuli, with at least one expressive unit.

The present invention allocates resources in a multi-operating system computing system, thereby avoiding bottlenecks and other degradations that result from competition for limited resources. In one embodiment, a computer system includes resources and multiple processors executing multiple operating systems that provide access to the resources. The resources include printers, disk controllers, memory, network controllers, and other often-accessed resources. Each operating system contains a kernel scheduler. Together, the multiple kernel schedulers are configured to coordinate allocating the resources to processes executing on the computer system.

A multiple Interactive Program Guide (IPG) system provides different television programming and different IPGs to several different users respectively. A single set-top box is capable of providing programming and scheduling data to several different television sets. Each of the different IPGs share a common database. Therefore, a first IPG being viewed by a first user can display data added or modified via a second IPG by a second user of the system. Furthermore, the data added or modified by the second user can influence the viewing rights of the first user. Also, all the competing and conflicting requests for limited resources, such as VCR scheduled recordings, will be brought to the users' attention and will be displayed by the system.

Content is managed and delivered to mobile devices, often through a wireless network. Mobile devices have content management software containing instructions to receive and manage content at the mobile device. Content management servers select and manage content and transmit content to the mobile devices, receiving requests for content, and up-to-date information regarding quantity of content to be transmitted. Up-to-date information regarding quantity is repeatedly sent and received, and content is repeatedly selected and transmitted using the information to make selections. Specific embodiments provide methods, systems, and devices for automatically managing content to increase the probability that the user is gaining access to the content they want to see and for decreasing the chance that the delivery of content is tying up limited resources of mobile devices.

Provided are a mobile extensible Markup Language (XML) signature service providing apparatus and method. The mobile XML signature service providing apparatus includes: an XML message analyzing unit authenticating a mobile client, according to an XML signature template generation request or an XML signature verification request received from the mobile client; an XML signature processor generating an XML signature template and a SignedInfo element in a canonicalized format if the authentication is successful, and verifying an XML signature; and an encoder providing key information and at least one setting value for the generation of the XML signature template and verification of the XML signature, to the XML signature processor. Therefore, the mobile XML signature service providing apparatus and method provide authentication, integrity, non-repudiation, etc. with respect to messages received/transmitted in a wireless environment, are applied to a wireless environment having limited resources, are compatible with an XML signature for an existing wired environment that is to be applied to wired-and-wireless integration electronic commerce, and minimizes a change in an existing wired environment when a mobile XML signature is applied.

The object of the invention is to facilitate the entry of a new type of sensor node and the adoption of a new protocol in the existing sensor network system effectively utilizing limited resources of radiocommunication. To achieve the object, the following are provided. A sensor node has a radiocommunication unit that transmits a measured value sensed by a sensor and an identifier of a sensor node as binary measured data. A base station has a radiocommunication controller that receives the measured data from the sensor node, a wire communication controller that transmits the received measured data to a server, a conversion definition information selector that selects conversion definition information corresponding to the identifier included in the measured data out of preset plural conversion definition information and a conversion engine that converts the binary measured data to measured data in a text format based upon the selected conversion definition information. The server has a database that stores the measured data in the text format received via a wired network.

The invention relates to a distributed-type database access method and system. The distributed-type database access method comprises: 1. a Web server sends a database access request to a proxy server; 2. the proxy server analyzes the database access request according to a preset analysis rule, and sends the analyzed database access request to a corresponding target database; and 3. the proxy serve sends a result returned by the target database to the Web server. The invention avoids risk of high cost brought by the centralized management of the database and avoids the risks that the whole system fails because of the fault of the single database, the system scale has small possibility of expanding and is limited and the like. The invention effectively realizes the reasonable distribution of physical resources, lowers communication cost, has strong expansibility, can dynamically distribute data flow, and can separate reading from writing; and under the condition of limited resource, performance is maximized.

To enable a non-profit to make informed decision about how to spend its limited resources efficiently to maximize its donations, systems and methods to determine prospect propensity and prospect capacity to identify what types of donations, such as annual gifts, major one-time gifts, or planned gifts, the non-profit should solicit from its pool of prospective donors and the likely amount of each such gift. Systems and methods that enable the non-profit further to identify what types of planned gift, such as bequests, charitable remainder trusts, charitable gift annuities, pooled income funds, and life insurance, it should solicit from each of its prospective donors. The systems and methods use models developed using statistical analysis to generate relative scores for all prospective donors in the pool. Such scores and additional wealth information are provided to the non-profit in electronic format for further manipulation and use.

A method and apparatus are provided for efficiently managing limited resources is a given computer system. The system utilizes a token manager that assigns tokens to groups of associated requestors. The tokens are then utilized by the requesters to occupy the given resource. The allocation of these tokens, thus, prevents such problems as denial of service due to a lack of available resources.

An automatic image cropping system is for use with a portable device having an image capture mechanism and a limited resource for storing or transmitting captured information. The system includes a region of interest suggestion engine defining plural image region candidates by performing image segmentation (20) on an image stored in digital form. The engine also determines if an image region candidate is likely to be more or less interesting to a user than another image region candidate. The engine further selects an image region candidate (28) determined as likely to be of most interest to the user. In some embodiments, the engine further possesses a training module to track user interaction with the portable device and adjust future determination of likelihood of user interest accordingly.

Presentation of advanced content items is selectively suspended and/or activated so as to manage system resources. In some embodiments, plug-in code is selectively activated based on prioritization schemes and responsive to resource usage, user input, and/or other conditions. For example, plug-in code can be selectively suspended when the advanced content being presented by the plug-in code is not in view (for example, if it has been scrolled off the screen); when the advanced content is brought into view, for example as a result of scrolling, the plug-in code is reactivated as appropriate and the presentation of the advanced content resumes. State information for suspended plug-ins can be stored so that upon reactivation, plug-in code resumes operation substantially where it left off.

Methods and system for dynamic font subsetting. One or more directives are inserted into electronic content to identify one or more glyph sub-sets needed to display the multiple characters in one or more desired languages for electronic content. A directive identifies a glyph sub-set including set of glyphs identified in the electronic content and an encoding scheme used to encode the set of glyphs. The glyph sub-set identifies only those glyphs needed to display the electronic content. When electronic content with the one or more directives is processed the one or more directives are identified. If the electronic device does not have the glyph sub-sets needed to display the electronic content, requests are sent to an intermediate network device to obtain glyph sub-sets. These method and system may allow an electronic device with limited resources, such as a wireless telephone, personal digital assistant, network appliance, set-top box, etc., to display electronic content from a computer network such as the Internet or an intranet, with virtually any font, even if the fonts from the electronic content do not exist on the electronic device. Electronic content written in languages such as Chinese, Japanese, Korean, Vietnamese, etc. can be displayed on an electronic device with limited resources using a small number of glyphs from the multiple thousands of possible glyphs that represent characters in such languages.