1504results about How to "Increase delay" patented technology

The invention is a system operating on a reference frequency. The system comprises a plurality of at least three nodes. Each node hands off a message received from another node to a subsequent node. Each of the nodes comprises a transceiver receiving a message on the reference frequency from another node and transmitting the received message on the reference frequency to a subsequent node, and a controller controlling operation of the transceiver to receive the.. message transmitted by another node and to transmit the received message to a subsequent node.

The invention is a system operating on a reference frequency. The system comprises a plurality of at least three nodes. Each node hands off a message received from another node to a subsequent node. Each of the nodes comprises a transceiver receiving a message on the reference frequency from another node and transmitting the received message on the reference frequency to a subsequent node, and a controller controlling operation of the transceiver to receive the message transmitted by another node and to transmit the received message to a subsequent node.

A method and architecture are provided for SOC (System on a Chip) devices for RAID processing, which is commonly referred as RAID-on-a-Chip (ROC). The architecture utilizes a shared memory structure as interconnect mechanism among hardware components, CPUs and software entities. The shared memory structure provides a common scratchpad buffer space for holding data that is processed by the various entities, provides interconnection for process / engine communications, and provides a queue for message passing using a common communication method that is agnostic to whether the engines are implemented in hardware or software. A plurality of hardware engines are supported as masters of the shared memory. The architectures provide superior throughput performance, flexibility in software / hardware co-design, scalability of both functionality and performance, and support a very simple abstracted parallel programming model for parallel processing.

A design method for an LSI includes: generating a delay library for use in a statistical STA, wherein the delay library provides a delay function that expresses a cell delay value as a function of model parameters of a transistor; generating a layout data; and calculating a delay value of a target cell based on the delay library and the layout data. The calculating includes: referring to the layout data to extract a parameter specifying a layout pattern around a target transistor; modulating model parameters of the target transistor such that the characteristics corresponding to the extracted parameter is obtained in a circuit simulation; calculating, by using the delay function, a reference delay value of the target cell; and calculating, by using the delay function and the modulation amount of the model parameter, a delay variation from the reference delay value depending on the modulation amount.

The invention provides a method useful for detection of genetic disorders. The method comprises determining the sequence of alleles of a locus of interest, and quantitating a ratio for the alleles at the locus of interest, wherein the ratio indicates the presence or absence of a chromosomal abnormality. The present invention also provides a non-invasive method for the detection of chromosomal abnormalities in a fetus. The invention is especially useful as a non-invasive method for determining the sequence of fetal DNA. The invention further provides methods of isolation of free DNA from a sample.

The invention provides a method useful for detection of genetic disorders. The method comprises determining the sequence of alleles of a locus of interest, and quantitating a ratio for the alleles at the locus of interest, wherein the ratio indicates the presence or absence of a chromosomal abnormality. The present invention also provides a non-invasive method for the detection of chromosomal abnormalities in a fetus. The invention is especially useful as a non-invasive method for determining the sequence of fetal DNA. The invention further provides methods of isolation of free DNA from a sample.

Methods and apparatus for a gate-length biasing methodology for optimizing integrated digital circuits are described. The gate-length biasing methodology replaces a nominal gate-length of a transistor with a biased gate-length, where the biased gate-length includes a bias length that is small compared to the nominal gate-length. In an exemplary embodiment, the bias length is less than 10% of the nominal gate-length.

A device and method for sensing breathing disorders, irregularities or insufficiencies is provided. One aspect includes sensing a precursor to an onset of a breathing disorder or episode of a breathing disorder and responding to sensing the precursor. Another aspect includes responding to treat the breathing disorder before manifestation of the disorder. Another aspect includes identifying a likelihood of a breathing disorder and responding using the likelihood and other information indicating onset or occurrence of a breathing disorder.

The invention provides a method useful for detection of genetic disorders. The method comprises determining the sequence of alleles of a locus of interest, and quantitating a ratio for the alleles at the locus of interest, wherein the ratio indicates the presence or absence of a chromosomal abnormality. The present invention also provides a non-invasive method for the detection of chromosomal abnormalities in a fetus. The invention is especially useful as a non-invasive method for determining the sequence of fetal DNA. The invention further provides methods of isolation of free DNA from a sample.

The invention increases performance of HTTP over long-latency links by pre-fetching objects concurrently via aggregated and flow-controlled channels. An agent and gateway together assist a Web browser in fetching HTTP contents faster from Internet Web sites over long-latency data links. The gateway and the agent coordinate the fetching of selective embedded objects in such a way that an object is ready and available on a host platform before the resident browser requires it. The seemingly instantaneous availability of objects to a browser enables it to complete processing the object to request the next object without much wait. Without this instantaneous availability of an embedded object, a browser waits for its request and the corresponding response to traverse a long delay link.

In an improved system for receiving digital voice signals from a data network, a jitter buffer manager monitors packet arrival times, determines a time varying transit delay variation parameter and adaptively controls jitter buffer size in response to the variation parameter. A speed control module responds to a control signal from the jitter buffer manager by modifying the rate of data consumption from the jitter buffer, to compensate for changes in buffer size, preferably in a manner which maintains audio output with acceptable, natural human speech characteristics. Preferably, the manager also calculates average packet delay and controls the speed control module to adaptively align the jitter buffer's center with the average packet delay time.

An approach for supporting security in a communications network is disclosed. A network device includes a security peer that establishes a secure tunnel over a data network (e.g., satellite network) for transport of encrypted traffic. The device also includes a performance peer for establishing a connection supported by the secure tunnel. The performance peer includes a plurality of modules for providing respective performance enhancing functions to minimize performance impact of latency of the network.

Systems, methods, and computer-readable storage media for inter-node data replication while reducing network traffic for remote backup. A system receives a command to duplicate a dataset, located on a source network node, to a remote network node, accesses, on the source network node, signatures of a previous snapshot of the dataset and signatures of a current snapshot of the dataset, performs, at the source network node, a local signature comparison between the previous snapshot and the current snapshot to identify one or more signatures that do not match, sends the signatures that do not match to the remote network node, searches, on the remote network node, for the signatures that do not match, and sends data associated with the signatures that do not match to the remote network node for incorporation within a current remote snapshot if they do not exist on a current remote network node.

A method for monitoring an alarm zone within a perimeter, border and / or building includes capturing video image data of an alarm event detected in the alarm zone, and automatically establishing a cell phone session with an end-user to verify a true or false nature of the detected alarm. The end-user may use the cell phone display to review the video during the cell phone session, and may use the cell phone's key for the verifying. The novel monitoring method with end-user alarm event verification avoids false alarms being raised where the nature of the detected alarm event is false, and the verifying occurs before a false alarm is raised / communicated.

A vehicle brake device is provided with a hydraulic brake device for boosting by a booster device a braking manipulation force generated upon a braking manipulation, for applying a base fluid pressure generated in dependence on the boosted brake manipulation force, to wheel cylinders of wheels so that a base hydraulic brake force is generated on the wheels, and for driving a pump to generate and apply a controlled fluid pressure to the wheel cylinders so that a controlled hydraulic brake force is generated on the wheels; braking manipulation state detecting means for detecting the braking manipulation state; a regenerative brake device for causing an electric motor to generate a regenerative brake force corresponding to the braking manipulation state on the wheels driven by the electric motor; variation detecting means for detecting the variation of an actual regenerative brake force actually generated by the regeneration braking device; and brake force compensating means for generating the controlled fluid pressure by driving the pump of the hydraulic brake device so that a controlled hydraulic brake force is generated on the wheels to compensate for the lack of the regenerative brake force due to the variation which is detected by the variation detecting means.

Improved decision feedback equalizer and decision directed timing recovery systems and methods suitable for use in connection with a dual mode QAM / VSB receiver system are disclosed. A trellis decoder operates in conjunction with a decision feedback equalizer circuit on trellis coded 8-VSB modulated signals. The trellis decoder includes a 4-state traceback memory circuit outputting a maximum likelihood decision as well as a number of intermediate decisions based upon the maximum likelihood sequence path. Any number of decisions, along the sequence, may be provided as an input signal to timing recovery system loops, with the particular decision along the sequence chosen on the basis of its delay through the trellis decoder. Variable delay circuitry is coupled to the other input of the timing recovery system loops in order to ensure that both input signals bear the same timestamp. Final decisions are output from the trellis decoder to a DFE in order to enhance the DFE's ability to operate in low SNR environments. A decision sequence estimation error signal is also generated and used to drive the tap updates of both the DFE and an FFE portion of the equalizer.

A virtual reality virtual theater system that generates or otherwise displays a virtual theater, for example in which to view videos, such as movies or television. Videos may be for example 2D or 3D movies or television programs. Embodiments create a virtual theater environment with elements that provide a theater-like viewing experience to the user. Virtual theaters may be for example indoor movie theaters, drive-in movie theaters, or home movie theaters. Virtual theater elements may include for example theater fixtures, décor, and audience members; these elements may be selectable or customizable by the user. One or more embodiments also render sound by placing virtual speakers in a virtual theater and projecting sounds from these virtual speakers onto virtual microphones corresponding to the position and orientation of the user's ears. Embodiments may also employ minimal latency processing to improve the theater experience.

The invention is directed toward a formable bone composition for application to a bone defect site to promote new bone growth at the site which comprises a new bone growth inducing compound of demineralized lyophilized allograft bone particles. The particle size ranges from about 0.1 mm to about 1.0 cm and is mixed in a hydrogel carrier containing a sodium phosphate saline buffer, the hydrogel component of the carrier ranging from about 1.0 to 5.0% of the composition and a pH between 6.8–7.4 with one or more additives of a cellular material, growth factor, demineralized bone chips or mineralized bone chips.

A method for multimedia playback and transmission to wireless clients is described. A host webserver transcodes a live digital or analog audio-visual or audio broadcast signal and splits the input stream into small multimedia objects of an efficient compression such as MPEG4 / AAC, and then immediately deploys the objects to distributed content servers for a geographically dispersed population of wireless clients. A java applet object player, downloaded to wireless clients at the beginning of the multimedia on-demand session, interprets and decodes the multimedia objects as they are received, using multiple levels of optimization. The applet uses novel video and audio decoding optimizations which can be generically applied to many digital video and audio codecs, and specifically decodes Simple Profile MPEG4 video and Low Complexity AAC audio.

Compositions, and methods of using such compositions, useful for placement, for example injection, into the interior of human or animal eyes are provided. Such compositions include a therapeutic component, such as one or more corticosteroids, a biocompatible polymeric component, and a solvent component. The composition is in a fluid form before placement in the interior of an eye, and becomes less fluid after the composition is placed in the eye to form an extended or delayed release drug delivery element or system. The drug delivery element is formed by the dissipation of the solvent from the composition when the composition is placed in the interior of an eye. One example of a composition includes triamcinolone acetonide as a therapeutic agent. A method of treating an ophthalmic condition, or otherwise improving or enhancing vision of a patient, comprises placing the fluid composition in the interior of the eye. The method may be practiced by injecting the fluid composition into the interior of the eye.

Systems and methods for detecting and correcting errors in programmable logic ICs are provided. In one embodiment, a scrubber periodically reads the memory cells in a programmable logic IC, detects and corrects any errors, and writes the corrected contents back into the memory cell. In another embodiment, regions of memory cells in a programmable logic IC each have associated error correcting circuitry which operates to continuously detect and correct errors as they occur. Error correcting circuitry can further be designed to reduce static hazards. It may be more desirable to design programmable logic IC routing architectures that reduce the number of memory cells needed to implement a given function. Error correcting circuitry can be provided for configuration memory or for an embedded memory block on a programmable logic IC.

A method and system for wiretapping a packet-based communication, such as a voice communication for instance. When a node in the normal path of packet-transmission between a source and destination receives packets of the communication, the node can conventionally route the packets to the intended destination. At the same time, a session manager can notify a wiretap server that the session is being established or is underway, and the wiretap server can then direct the node to bi-cast the packets of the communication to the wiretap server node. At the wiretap server, the packetized communication can be depacketized, and a TDM signal representing the communication can be sent via a conventional circuit-switch to a law enforcement agency or other authorized entity.

An “adaptive audio playback controller” operates by decoding and reading received packets of an audio signal into a signal buffer. Samples of the decoded audio signal are then played out of the signal buffer according to the needs of a player device. Jitter control and packet loss concealment are accomplished by continuously analyzing buffer content in real-time, and determining whether to provide unmodified playback from the buffer contents, whether to compress buffer content, stretch buffer content, or whether to provide for packet loss concealment for overly delayed or lost packets as a function of buffer content. Further, the adaptive audio playback controller also determines where to stretch or compress particular frames or signal segments in the signal buffer, and how much to stretch or compress such segments in order to optimize perceived playback quality.

The invention provides a system for providing traffic or related information including: a database storing historical traffic data being operable to receive substantially real time traffic data and associated data; means for integrating historical, real time and associated traffic data with respect to traveller profiles to produce customized forecasted traffic information with respect to those traveller profiles; and means for sending the customized forecasted traffic information to an intended recipient wherein the customized forecasted traffic information includes predicted travel delays for travel routes described in the traveller profiles.

A quality of service profile for a mobile communication subscriber unit is determined and includes one or more mobile-specific desired quality of service parameters. Actual values for the service parameter(s) is(are) determined and fed back to a link quality controller to determine whether they are in an acceptable range or relationship with corresponding actual quality of service parameter values. A modulation and / or coding scheme for transmitting the information over the radio link is selected or adjusted based on whether the desired and actual quality of service parameters are in an acceptable range or acceptable relationship. A combined “desired” quality of service parameter using the first and second quality of service parameters (or more if desired) may be determined. A combined “actual” quality of service parameter using first and second actual quality service parameter values is determined. Those combined desired and actual quality of service parameters are compared to determine whether they are in an acceptable range or relationship. The modulation or coding scheme (or both) is (are) selected or adjusted based thereon.