Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

66results about How to "Less storage" patented technology

Adaptive compression and decompression of bandlimited signals

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).
Owner:TAHOE RES LTD

Indexation of massive point cloud data for efficient visualization

A method for pre-processing point clouds comprising large amounts of point data. The method comprises converting the points' coordinates to Morton indices, sorting the Morton indices and sequentially determining intervals based on predefined criteria, which intervals define the leaf nodes and form the basis and starting point for the generation of a tree index structure comprising the leaf nodes, nodes, branches and nodes connecting the branches. Point data contained within a node or sub-trees of a node are quantizable.
Owner:MY VIRTUAL REALITY SOFTWARE

Method of computing an estimated queuing delay

InactiveUS20170011327A1Accurately predict rapidly changing queue delayAccurate queue delayResourcesSource dataType of service
A method of computing an estimated queuing delay is described that uses both historical queue delay data in the form of multiple calendar-based queue delay profiles and real-time data in the form of field-reports from service objects of actual queue delay. A decision selects either the source data from queue delay profiles or a real-time report. A clustering algorithm is used to assign potentially widely disparate geographic locations to clusters and to assign service type records to a cluster. Calendar-based queue delay profiles may be associated at the cluster level, at the service-type level, and at the individual service point level. Service objects may request an estimated queue delay; service objects may be provided with a estimated queue delay for a specified service point and also delays for alternative service points. Such requests may be prior to selecting or moving to a particular service queue.
Owner:LASNE HAIDER MR +1

Synchronization of metadata in a distributed storage system

A client machine writes to and reads from a virtual disk on a remote storage platform using a storage protocol. Metadata is generated and is stored in replicas on different metadata nodes of the storage platform. A modified log-structured merge tree is used to store and compact string-sorted tables of metadata. During file storage and compaction, a consistent file identification scheme is used across all metadata nodes. A fingerprint file is calculated for each SST file on disk that includes hash values corresponding to regions of the SST file. To synchronize, the fingerprint files of two SST files are compared, and if any hash values are missing from a fingerprint file then the key-value-timestamp triples corresponding to these missing hash values are sent to the SST file that is missing them in the SST file is compacted with the missing triples to create a new version of the SST file. The other fingerprint file is then analyzed the same way.
Owner:COMMVAULT SYST INC

Method and device for correcting image barrel distortion and image processing device

The invention provides a method for correcting image barrel distortion. The method comprises the steps of forming a lookup table according to relations of an ideal coordinate of pixels prior to image distortion and a distortion factor, calculating distances R<x> and R<y> of the ideal coordinates (x, y) on an x direction and a y direction relative to an original point, enabling a central point coordinate (xc, yc) (x, y) of an image be set to be the original point, and obtaining the equations that R<x>=xc-x and R<y>=yc-y; calculating a K value, calculating a distortion factor S, and obtaining the ideal coordinate corresponding to a distortion coordinate according to relations between the distortion coordinate and the ideal coordinate; endowing a pixel value of the distortion coordinate to the ideal coordinate, and forming a corrected image according to the ideal coordinate and the pixel value of the distortion coordinate. The invention further provides a device for correcting image barrel distortion and an image processing device. According to the method and device for correcting image barrel distortion and the image processing device, operation quantity can be reduced, barrel correction is achieved rapidly and effectively, a memory which is low in cost can be used, and the cost is reduced.
Owner:深圳市繁维科技有限公司

Wearable cardioverter defibrillator (WCD) with power-saving function

A Wearable Cardioverter Defibrillator (WCD) system has a processor that performs two different analyses to an ECG of the patient. A first-level analysis can be computationally economical, while a fuller second-level analysis can give shock / no-shock advice with more certainty. In some of these embodiments the second-level analysis of the ECG is performed only if the first-level analysis of the ECG detects a possible shockable condition. As such, the first-level analysis may operate as a gatekeeping function, often preventing the more computationally intensive second-level analysis from being performed. An advantage can be that the WCD system needs to store less charge, for powering the processor. In turn, this permits portions of the WCD system to be less bulky and weigh less.
Owner:WEST AFFUM HLDG DAC

Method and apparatus for aggressive compression, storage and verification of the dynamics of handwritten signature signals

The fields of biometrics and commerce can benefit from the aggressive compression techniques presented here. A novel approach to compressing the on-line handwriting signal without losing the dynamic information (i.e., velocity and order) is presented which provides the means to fit almost any signature sample within the 57-byte limit of one of the free magnetic strips on the back of conventional transaction cards such as credit or debit cards or other identity cards. The apparatus requires an on-line signature capture tablet capable of sampling the handwritten signature in a series of sampled X and Y coordinates. The compression method starts with segmenting the on-line handwriting signal into portions which may be approximated with a set of features from which the velocity and position may be reconstructed. These features are then compressed further using standard compression techniques. A Huffman coding technique is used to demonstrate this step. The size of the average signature including its dynamic information is stored in a space less than 57 bytes which is the magic limit imposed by conventional, magnetic transaction (credit or debit) card strips. This is by far less than about 1000 bytes required if only loss-less techniques were used. A loss-less compression technique is also briefly presented. Normally, out of the three strips which are provided on the back of a card, two strips are available and may be used for storing the template of the owner's signature for future verification.
Owner:BEIGI HOMAYOON S M

Switching device

A switching device in a network system for transferring data includes one or more source line cards, one or more destination line cards and a switching fabric coupled to the source line cards and the destination line cards to enable data communication between any source line card and destination line card. Each source line card includes a request generator to generate a request signal to be transmitted in order to obtain an authorization to transmit data. Each destination line card includes a grant generator to generate and send back a grant signal to the source line card in response to the request signal received at the destination line card to authorize the source line card to transmit a data cell to the destination line card.
Owner:JUMIPER NETWORKS INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products