45 results about "Low fidelity" patented technology

Disclosures herein teach applying a set of sections spanning a down-sampled version of an image of a road-scene to a low-fidelity classifier to determine a set of candidate sections for depicting one or more objects in a set of classes. The set of candidate sections of the down-sampled version may be mapped to a set of potential sectors in a high-fidelity version of the image. A high-fidelity classifier may be used to vet the set of potential sectors, determining the presence of one or more objects from the set of classes. The low-fidelity classifier may include a first Convolution Neural Network (CNN) trained on a first training set of down-sampled versions of cropped images of objects in the set of classes. Similarly, the high-fidelity classifier may include a second CNN trained on a second training set of high-fidelity versions of cropped images of objects in the set of classes.

Apparatus and methods for digital video data compression via a scalable, multi-resolution approach. In one embodiment, the video content may be encoded using a multi-resolution and / or multi-quality scalable coding approach that reduces computational and / or energy load on a client device. In one implementation, a low fidelity image is obtained based on a first full resolution image. The low fidelity image may be encoded to obtain a low fidelity bitstream. A second full resolution image may be obtained based on the low fidelity bitstream. A portion of a difference image obtained based on the second full resolution image and the first full resolution may be encoded to obtain a high fidelity bitstream. The low fidelity bitstream and the high fidelity bitstream may be provided to e.g., a receiving device.

A system authenticates an original hardcopy document using a digital signature generation system and a digital signature verification system. Initially, the original hardcopy document is scanned to provide a bitmap image to the signature generation system. The bitmap image is highly compressed by the signature generation system using compression schemes such as MPEG (for gray images) or a low-fidelity symbol based compression scheme (for bi-level images). A signed hardcopy document is then printed that includes the bitmap image and an authentication token. The authentication token is encoded in the signed hardcopy document using either serpentine halftone patterns or data glyphs. The authenticity of the signed hardcopy document is verified by inputting a scanned bitmap image of the signed hardcopy document into the signature verification system. Once received, the signature verification system decodes, authenticates, and decompresses the bitmap image to define decompressed image data. The decompressed image data is then output to a display or printer and compared with the signed hardcopy document to determine whether it is authentic.

Embodiments according to the present invention allow multiple parties equipped with telecommunications devices (endpoint devices) of similar or differing audio capabilities to join in a conference call and enjoy the fidelity associated with their equipment. Rather than operating with the frequency and fidelity limits of traditional telecommunications circuits (for example, about 300-3500 Hz), at least a portion of a conference bridge according to the present invention operates at higher frequencies. Conference participants using high-fidelity endpoint devices hear each other with greater clarity and reproduction accuracy. Conference participants using conventional interfaces send and receive lower-fidelity audio, but it affects only their own participation and not that of the entire conference. Participants can connect via for example, wireline, wireless Public Switched Telephone Network (PSTN), or via networks such as the Internet. Multiple voice encoding schemes are accommodated.

Disclosures herein teach applying a set of sections spanning a down-sampled version of an image of a road-scene to a low-fidelity classifier to determine a set of candidate sections for depicting one or more objects in a set of classes. The set of candidate sections of the down-sampled version may be mapped to a set of potential sectors in a high-fidelity version of the image. A high-fidelity classifier may be used to vet the set of potential sectors, determining the presence of one or more objects from the set of classes. The low-fidelity classifier may include a first Convolution Neural Network (CNN) trained on a first training set of down-sampled versions of cropped images of objects in the set of classes. Similarly, the high-fidelity classifier may include a second CNN trained on a second training set of high-fidelity versions of cropped images of objects in the set of classes.

The present invention addresses the problem of transmitting optical signals with high extinction ratios using low-power drive signals. At present, low-power optical transmitters typically operate with modulation extinction ratios of, at best, about 10 dB. Embodiments of the present invention may achieve extinction ratios exceeding 20 dB using low-power drive signals of under 20 mW at data rates on the order of Gbits / sec. In addition, the modulation may be achieved with both low-power and low-fidelity drive waveforms, enabling conventional and often noisy high-speed, low-power electronics to generate high-extinction, high-fidelity optical waveforms.

During synchronization of data between a remote device and a local device, it can be determined if a value for a property on a remote device has changed since a last synchronization of the property between the remote device and a local machine. A remote representation of a property value is compared to a local representation associated with the same property value. If the representations are identical, it can be determined that the property value did not change on the remote device. If, however, they are not identical then the property value must have changed after the remote representation was generated.

Methods of encoding and decoding video in a low-fidelity mode are described. A coding unit level low-fidelity flag is present in the bitstream to signal whether low-fidelity mode is enabled for a particular coding unit or not. If enabled, then, for that coding unit, the chroma quantization parameter is determined using the luma quantization parameter adjusted by a low-fidelity-mode offset. If not enabled, then, for that coding unit, the chroma quantization parameter is determined using the luma quantization parameter without adjustment by the low-fidelity-mode offset. The chroma quantization parameter is then used in the scaling of quantized chroma transform domain coefficients. Use with luma or other video components is also proposed.

During synchronization of data between a remote device and a local device, it can be determined if a value for a property on a remote device has changed since a last synchronization of the property between the remote device and a local machine. A remote representation of a property value is compared to a local representation associated with the same property value. If the representations are identical, it can be determined that the property value did not change on the remote device. If, however, they are not identical then the property value must have changed after the remote representation was generated.

The invention discloses a multi-fidelity design optimization method for a shell structure of an autonomous underwater vehicle. A multi-fidelity method of an addition bridging function based on a Kriging model is adopted, a multi-start optimization method and a unique self-adaptive model updating strategy are combined, and accordingly design optimization of the shell structure is conducted. The multi-fidelity method is adopted to construct an agent model of which the maximum stress of the shell structure avoids the instability of the critical load, when the agent model is constructed, a large amount of low-fidelity calculation and analysis are used, the precision of the model is improved, and meanwhile the total calculation cost of the optimization process of the structure design is reduced. During sequence optimization, a new agent model is adopted to update the strategy; meanwhile, an optimum point of the current model and an MSE maximum point of the current model are added into high and low fidelity sampling points; through the MSE maximum point of the added model, the global space can be sufficiently explored, and accordingly the total precision of the agent model is improved; accordingly, an optimum design scheme is obtained, and the precision and efficiency of design optimization are improved.

A system and method for generating a signed hardcopy document and authentication thereof is provided. A data representation including digital data is recorded from a hardcopy document. The digital data is compressed using a compression scheme including one of low-fidelity compression and symbol-based compression. An authentication token is generated from the compressed digital data. The authentication token is encoded. A signed hardcopy document including both the encoded authentication token and the data representation is printed.

The present invention provides a method for identifying a thermostable polymerase having altered fidelity. The method consists of generating a random population of polymerase mutants by mutating at least one amino acid residue of a thermostable polymerase and screening the population for one or more active polymerase mutants by genetic selection. For example, the invention provides a method for identifying a thermostable polymerase having altered fidelity by mutating at least one amino acid residue in an active site O-helix of a thermostable polymerase. The invention also provides thermostable polymerases and nucleic acids encoding thermostable polymerases having altered fidelity, for example, high fidelity polymerases and low fidelity polymerases. The invention additionally provides a method for identifying one or more mutations in a gene by amplifying the gene with a high fidelity polymerase. The invention further provides a method for accurately copying repetitive nucleotide sequences using a high fidelity polymerase mutant. The invention also provides a method for diagnosing a genetic disease using a high fidelity polymerase mutant. The invention further provides a method for randomly mutagenizing a gene by amplifying the gene using a low fidelity polymerase mutant.

During synchronization of data between a remote device and a local device, it can be determined if a value for a property on a remote device has changed since a last synchronization of the property between the remote device and a local machine. A remote representation of a property value is compared to a local representation associated with the same property value. If the representations are identical, it can be determined that the property value did not change on the remote device. If, however, they are not identical then the property value must have changed after the remote representation was generated.

During synchronization of data between a remote device and a local device, it can be determined if a value for a property on a remote device has changed since a last synchronization of the property between the remote device and a local machine. A remote representation of a property value is compared to a local representation associated with the same property value. If the representations are identical, it can be determined that the property value did not change on the remote device. If, however, they are not identical then the property value must have changed after the remote representation was generated.

A problem with Internet access in a number of markets is the issue of data-limited network connections. Selective, on-demand consumption of web page data is provided. A user's browser presents a “light” version of a web page by loading compressed or low-fidelity versions of the web page images in place of the actual, higher-fidelity images. In the event that the user wishes to see the original higher-fidelity version of an image, clicking on the image or an associated icon loads the original-fidelity version of the image, replacing the low-fidelity version. The light version of the web page loads faster than would the original version of the web page, and requires less data to be downloaded when rendering the web page. This enables a user with a data-limited connection to select how he or she wishes to “spend” their data consumption.

Rendering of objects techniques can include a method, a system, and a graphics device. The method can include receiving data for one or more objects. The data for each object can include a fidelity code, wherein the fidelity code indicates object fidelity level. The method further can include computing pixels touched by each received object based on a pixel grid associated with the fidelity code of the object. The method further can include providing pixel data for objects having fidelity code indicating a lower fidelity object.

A method for improving characteristics of acoustic and vibration transducers, including integrated microphones and integrated transducers of vibrations, is disclosed. The method consists in the use of a low-fidelity acoustic or vibration transducer for converting an acoustic signal into an analog electrical signal, an analog-to-digital converter for converting the analog electrical signal into a digital signal and a digital processor for correcting and enhancing the latter signal. The resulting digital representation of the acoustic signal is analogous to that attainable by using a high-fidelity transducer.

During synchronization of data between a remote device and a local device, it can be determined if a value for a property on a remote device has changed since a last synchronization of the property between the remote device and a local machine. A remote representation of a property value is compared to a local representation associated with the same property value. If the representations are identical, it can be determined that the property value did not change on the remote device. If, however, they are not identical then the property value must have changed after the remote representation was generated.

The invention discloses a method and a device for acquiring stimulated Brillouin scattering light with high-fidelity pulse waveforms, and belongs to the field of optics. The method and the device aim to solve the problems of low fidelity caused by the front edge steepening, pulse width narrowing and modulation of stimulated Brillouin scattering (SBS) pulse waveforms generated by a conventional Brillouin scattering light generation device and the structural complexity of a conventional improved device. In the method and the device, after P polarized pumped laser emitted by a laser is transmitted by a 1 / 2 wave plate, polarized pumped light with a P polarized component and an S polarized component is output; after the polarized pumped light of the P polarized component is transmitted sequentially by a polarizing film and a 1 / 4 wave plate, left circularly polarized pumped light is output and enters a liquid-core optical fiber by a coupling lens, and the stimulated Brillouin scattering light which is right circularly polarized light is output by the liquid-core optical fiber; and the right circularly polarized light is backtracked and completely converted into S polarized beams by the 1 / 4 wave plate.

A wrist-worn device monitors movements of a user with a flexible circuit member. The flexible circuit member is fault tolerant. It may contain extra and / or redundant traces as well as the ability to store data on RAM if the flash memory fails or if some or all trace connections between the processor and flash memory fail. Data stored on the RAM may or may not contain less fidelity. Lower fidelity data may be used to alleviate issues arising if the RAM has less storage capacity than the flash memory.

A component-based adaptation system is provided in which the operation of an application or the data being used by the application is adapted according to an application-specific or a user-specific policy. Following a request for a document by an application, the requested document is retrieved and converted into an application-independent format. The data of the document is then supplied to the application according to a user-specific or application-specific policy. The application of the policy may result in a lower fidelity version or a subset of the data of the requested document being supplied to the application. The policy may also govern the updating of the data supplied to the application. The data supplied to the application may be updated following the occurrence of a tracked event in the application or according to a background policy governing the supply of updated data without reference to the user's operation of the application. All of the adaptations are implemented without modifying the source code of the application and without modifying the document as it is permanently stored on a data server.

The invention relates to a design method of a high-fidelity and non-uniform shark-imitating groove microstructure of a large wind power generator blade, in particular to a method for performing differentiation design on the high-fidelity and non-uniform shark-imitating groove microstructures according to different radial region linear speeds of different fan blades so as to achieve efficient bionic resistance and noise reduction. The design method has the advantages that the fact that 'Reynolds number uses wing chord as characteristic length changes in the wind wheel radial direction' is fully considered when resistance and noise reduction structure design is performed on the large wind power generator blade, the method is scientific and reasonable compared with existing uniform design; the design method of the high-fidelity and non-uniform shark-imitating groove microstructure can ensure efficient actual using effect compared with existing abstract and simplified low-fidelity shark-imitating resistance and noise reduction structure design.

The invention discloses a high-efficiency and high-fidelity transient adhesive tape transfer printing method without an adhesion promoter, and mainly solves the problems of low transfer printing efficiency, low fidelity and high operation difficulty of an existing PDMS-based transfer printing technology. According to the implementation scheme, the method comprises the following steps: 1) preparinga monocrystalline silicon film on an SOI substrate; 2) preparing photoresist anchor points on the monocrystalline silicon thin film, and etching the buried oxide layer of the SOI substrate; 3) picking up a monocrystalline silicon film on the SOI substrate by using a transient adhesive tape; 4) coupling the transient adhesive tape with the monocrystalline silicon film with a receiving substrate; 5) soaking the coupled system in acetone solution, pulling out the soaked system, and drying the soaked system to remove residues dissolved in the adhesive tape, thereby completing high-efficiency andhigh-fidelity transfer printing. The method changes a traditional transfer printing mode, improves the reliability of the transfer printing technology, reduces the process difficulty and cost, achieves the higher transfer printing efficiency and fidelity, and can be used for manufacturing heterogeneous integrated chips.

A component-based adaptation system is provided in which the operation of an application or the data being used by the application is adapted according to an application-specific or a user-specific policy. Following a request for a document by an application, the requested document is retrieved and converted into an application-independent format. The data of the document is then supplied to the application according to a user-specific or application-specific policy. The application of the policy may result in a lower fidelity version or a subset of the data of the requested document being supplied to the application. The policy may also govern the updating of the data supplied to the application. The data supplied to the application may be updated following the occurrence of a tracked event in the application or according to a background policy governing the supply of updated data without reference to the user's operation of the application. All of the adaptations are implemented without modifying the source code of the application and without modifying the document as it is permanently stored on a data server.

A wrist-worn device monitors movements of a user with a flexible circuit member. The flexible circuit member is fault tolerant. It may contain extra and / or redundant traces as well as the ability to store data on RAM if the flash memory fails or if some or all trace connections between the processor and flash memory fail. Data stored on the RAM may or may not contain less fidelity. Lower fidelity data may be used to alleviate issues arising if the RAM has less storage capacity than the flash memory.

Apparatus and methods for digital video data compression via a scalable, multi-resolution approach. In one embodiment, the video content may be encoded using a multi-resolution and / or multi-quality scalable coding approach that reduces computational and / or energy load on a client device. In one implementation, a low fidelity image is obtained based on a first full resolution image. The low fidelity image may be encoded to obtain a low fidelity bitstream. A second full resolution image may be obtained based on the low fidelity bitstream. A portion of a difference image obtained based on the second full resolution image and the first full resolution may be encoded to obtain a high fidelity bitstream. The low fidelity bitstream and the high fidelity bitstream may be provided to e.g., a receiving device.

Embodiments according to the present invention allow multiple parties equipped with telecommunications devices (endpoint devices) of similar or differing audio capabilities to join in a conference call and enjoy the fidelity associated with their equipment. Rather than operating with the frequency and fidelity limits of traditional telecommunications circuits (for example, about 300-3500 Hz), at least a portion of a conference bridge according to the present invention operates at higher frequencies. Conference participants using high-fidelity endpoint devices hear each other with greater clarity and reproduction accuracy. Conference participants using conventional interfaces send and receive lower-fidelity audio, but it affects only their own participation and not that of the entire conference. Participants can connect via for example, wireline, wireless Public Switched Telephone Network (PSTN), or via networks such as the Internet. Multiple voice encoding schemes are accommodated.

The present invention provides for a distributed computing system that is capable of determining when data needs to be synced between two computer devices because data has changed on at least a remote device. More particularly, the present invention provides for a sync adapter that uses sync data to detect that a property on a device is new and needs to synchronize with corresponding data on another machine. The sync data is specific to the two devices in that the sync data mirrors data that was last synchronized between these two computing devices. Other example embodiments use the sync data to detect and mark data as low fidelity data for identifying any date and time information associated with the low fidelity data as potentially unreliable.