1548results about How to "Attenuation bandwidth" patented technology

An object detection system for detecting instances of an object in a digital image includes an image integrator and an object detector, which includes a classifier (classification function) and image scanner. The image integrator receives an input image and calculates an integral image representation of the input image. The image scanner scans the image in same sized subwindows. The object detector uses a cascade of homogenous classification functions or classifiers to classify the subwindows as to whether each subwindow is likely to contain an instance of the object. Each classifier evaluates one or more features of the object to determine the presence of such features in a subwindow that would indicate the likelihood of an instance of the object in the subwindow.

Single-camera image processing methods are disclosed for 3D navigation within ordinary moving video. Along with color and brightness, XYZ coordinates can be defined for every pixel. The resulting geometric models can be used to obtain measurements from digital images, as an alternative to on-site surveying and equipment such as laser range-finders. Motion parallax is used to separate foreground objects from the background. This provides a convenient method for placing video elements within different backgrounds, for product placement, and for merging video elements with computer-aided design (CAD) models and point clouds from other sources. If home users can save video fly-throughs or specific 3D elements from video, this method provides an opportunity for proactive, branded media sharing. When this image processing is used with a videoconferencing camera, the user's movements can automatically control the viewpoint, creating 3D hologram effects on ordinary televisions and computer screens.

When a network resource request having a domain name is received, it is determined whether the network resource can be accessed from the domain name. Rather than, or in addition to, displaying an error message or processing a search request in response to determining that a network resource can not be accessed, the domain name can instead be redirected to a registration service where the domain name can be automatically used to perform a registration request and determine domain name availability. When the domain name is not available for registration, domain name registrant information is provided. However, when the domain name is determined available, a registration form is provided. For example, such a domain name may be redirected from the autosearch feature of a web browser to a service, which determines that the domain name is available for registration enabling a potential registrant to register the available domain name by selecting a domain name registration provider from a list of domain name registration providers.

A system and method to intercept traffic at standard interface points as defined by Cellular/Wireless networks (GSM/GPRS, 3G/UMTS/HSDPA/HSUPA, CDMA, WIMAX, LTE), emulate the respective protocols on either side of the interception point, extract user/application payloads within the intercepted packets, perform optimizations, and re-encapsulate with the same protocol, and deliver the content transparently is disclosed. The optimizations include but are not limited to Content Caching, prediction & pre-fetching of frequently used content, performance of content-aware transport optimizations (TCP, UDP, RTP etc.) for reducing back-haul bandwidth, and improvement of user experience. An additional embodiment of the current invention includes injecting opportunistic content (location based, profile based or advertisement content) based on the information derived while monitoring control plane protocols.

In a network supporting transactions between clients and servers and proxies that are interposable in a network path between at least one client and at least one server, wherein a pair of proxies can modify a packet stream between a client and a server such that packet data from the client to the server is transformed at a client-side proxy of the proxy pair and untransformed at a server-side proxy of proxy pair and such that packet data from the server to the client is transformed at the server-side proxy and untransformed at the client-side proxy, a method and apparatus for a discovering proxy to transparently discover its position in a proxy pair by using proxy signals to indicate to other proxies that could pair with the discovering proxy. A discovering proxy might determine that it is a client-side proxy by receipt of a packet from client without a proxy signal. A discovering proxy might determine that it is a server-side proxy by receipt of a packet from server without a return proxy signal. Once a proxy pair is discovered, that proxy pair might transform traffic from the server to the client or vice versa, transforming the traffic at one proxy of the proxy pair and untransforming the traffic at the other proxy of the pair.

A method of developing a computer application by coding a markup document in an XML markup language, coding a business logic component using any programming language, compiling the business logic component into a specific executable code, converting the XML document into a specific markup language document and deploying the converted markup document and the executable code to a client machine running a specific operating system via a network connection. The XML markup document can be converted in any markup language including XUL, SVG, Xforms, XML related languages, HTML, HTML related languages, text, and combinations thereof. The business logic component can be written using any programming language including Java, JavaScript, J#, C#, C, C++, Visual Basic, ActionScript, XSL, XQuery, and XPath, among others. The computer application can run in any operating system including next generation Windows Longhorn, Windows 2000, Linux, Unix, Apple or Palm operating systems, among others.

A method and system tracks objects using a surveillance database storing events acquired by a set of sensors and sequences of images acquired by a set of cameras. Sequences of temporally and spatially adjacent events sensed by the set of sensors are linked to form a set of tracklets and stored in the database. Each tracklet has endpoints being either a track-start, track-join, tracklet-merge or tracklet-end node. A subset of sensors is selected, and a subset of tracklets associated with the subset of sensors is identified. A single starting tracklet is selected. All sequences of tracklets temporally and spatially adjacent to the starting tracklet are aggregated to construct a tracklet graph. The track-join nodes and the track-split nodes are disambiguated and eliminated from the track graph to determine a track of the object in the environment.

An efficient method for compressing sampled analog signals in real time, without loss, or at a user-specified rate or distortion level, is described. The present invention is particularly effective for compressing and decompressing high-speed, bandlimited analog signals that are not appropriately or effectively compressed by prior art speech, audio, image, and video compression algorithms due to various limitations of such prior art compression solutions. The present invention's preprocessor apparatus measures one or more signal parameters and, under program control, appropriately modifies the preprocessor input signal to create one or more preprocessor output signals that are more effectively compressed by a follow-on compressor. In many instances, the follow-on compressor operates most effectively when its input signal is at baseband. The compressor creates a stream of compressed data tokens and compression control parameters that represent the original sampled input signal using fewer bits. The decompression subsystem uses a decompressor to decompress the stream of compressed data tokens and compression control parameters. After decompression, the decompressor output signal is processed by a post-processor, which reverses the operations of the preprocessor during compression, generating a postprocessed signal that exactly matches (during lossless compression) or approximates (during lossy compression) the original sampled input signal. Parallel processing implementations of both the compression and decompression subsystems are described that can operate at higher sampling rates when compared to the sampling rates of a single compression or decompression subsystem. In addition to providing the benefits of real-time compression and decompression to a new, general class of sampled data users who previously could not obtain benefits from compression, the present invention also enhances the performance of test and measurement equipment (oscilloscopes, signal generators, spectrum analyzers, logic analyzers, etc.), busses and networks carrying sampled data, and data converters (A/D and D/A converters).

Three-dimensional computer graphics systems and methods and more particularly to structure and method for a three-dimensional graphics processor and having other enhanced graphics processing features. In one embodiment the graphics processor is Deferred Shading Graphics Processor (DSGP) comprising an AGP interface, a command fetch decode (2000), a geometry unit (3000), a mode extraction (4000) and polygon memory (5000), a sort unit (6000) and sort memory (7000), a setup unit (8000), a cull unit (9000), a mode injection (10000), a fragment unit (11000), a texture (12000) and texture memory (13000) a phong shading (14000), a pixel unit (15000), a backend unit (1600) coupled to a frame buffer (17000). Other embodiments need not include all of these functional units, and the structures and methods of these units are applicable to other computational processes and systems as well as deferred and non-deferred shading graphical processors.

A wireless multi-handset telephone system with integrated video monitoring. A speakerphone base unit, at least one camera module, at least one combination video/voice handset, and at least one voice handset operate together such that voice and data are transmitted (i) between the speakerphone base unit and the at least one camera module and (ii) between the speakerphone base unit and the at least one voice handset, and video images are transmitted from the at least one camera module to the at least one combination video/voice handset.

A data chunking system divides data into predominantly fixed-sized chunks such that duplicate data may be identified. The data chunking system may be used to reduce the data storage and save network bandwidth by allowing storage or transmission of primarily unique data chunks. The system may also be used to increase reliability in data storage and network transmission, by allowing an error affecting a data chunk to be repaired with an identified duplicate chunk. The data chunking system chunks data by selecting a chunk of fixed size, then moving a window along the data until a match to existing data is found. As the window moves across the data, unique chunks predominantly of fixed size are formed in the data passed over. Several embodiments provide alternate methods of determining whether a selected chunk matches existing data and methods by which the window is moved through the data. To locate duplicate data, the data chunking system remembers data by computing a mathematical function of a data chunk and inserting the computed value into a hash table.

Systems and methods are disclosed for reducing the cost of sending messages over an intermittent network of computing devices via multiple communication channels by creating a first message on a first device, the message intended to be sent to a second device over the network multiple communication channels; applying a first policy to reduce the cost of sending messages over the intermittent network of computing devices, the first policy containing one or more rules to determine whether to send the first message to the second device, each rule being a function of one or more messaging attributes of messages, channels or the system environment; and dynamically updating the first policy by sending a second message to the first device, the second message being a system message that results in the addition, deletion or other modification of the rules contained in the policy to reduce the cost of sending messages over the intermittent network of computing devices.