| Patent application number | Description | Published |
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| 20100004757 | SMOOTH ROLLOVER INSOLE FOR PROSTHETIC FOOT - A prosthetic foot includes a foot member, a heel member operatively coupled to the foot member. At least one of the heel member and foot member define an arch portion that faces a support surface that the prosthetic foot contacts during use. An insole member contacts said arch portion, the insole member configured to facilitate a rollover of the prosthetic foot in at least one of a lateral-medial and a medial-lateral direction during ambulation. | 01-07-2010 |
| 20120078380 | ACTUATOR ASSEMBLY FOR PROSTHETIC OR ORTHOTIC JOINT - A system and method associated with the movement of a limb. In one example, the system, such as a prosthetic or orthotic system, includes an actuator that actively controls, or adjusts, the angle between a foot unit and a lower limb member. The actuator preferably selectively locks during a desired phase in a gait cycle and minimizes friction against a rotor of the actuator. A processing module may control movement of the actuator based on data obtained from a sensor module. For instance, data may include information relating to a user's gait and may be used to adjust the foot unit to substantially mimic the movement of a natural ankle. The system may accommodate level ground walking, traveling up/down stairs or sloped surfaces, and various other user movements. In addition, the processing module may receive user input, such as a heel height, or display output signals through an external interface. | 03-29-2012 |
| 20120165958 | FUNCTIONAL FOOT COVER - A cover for a foot prosthesis comprises an opening at a top end of the cover, which extends into a cavity formed within the cover, wherein the cavity is configured to receive a prosthesis therein. A wall surrounds the cavity and has the shape of a natural human foot. The wall has an inner surface and an outer surface. The wall also has a top section, a bottom section and a rear section. The bottom section defines a sole area having a toe section, a heel section, and a metatarsal region, wherein the sole area is provided with varying levels of stiffness configured to induce a desired rollover from heel-to-toe in a lateral-to-medial direction. | 06-28-2012 |
| 20130060349 | PROSTHETIC AND ORTHOTIC DEVICES HAVING MAGNETORHEOLOGICAL ELASTOMER SPRING WITH CONTROLLABLE STIFFNESS - A prosthetic or orthotic device includes a body configured to support at least a portion of a human limb of a user wearing the prosthetic or orthotic device. The device can also include a shock absorption member coupled to the body. The shock absorption member includes one or more magnetorheological elastomer (MRE) springs disposed between a first portion of the body and a second portion of the body. The one or more MRE springs are selectively actuatable to vary a stiffness of the shock absorption member via the application of a magnetic flux, thereby adjusting a stiffness of the body of the prosthetic or orthotic device to a level corresponding to an activity level of the user. | 03-07-2013 |
| 20130085581 | FRICTIONLESS VERTICAL SUSPENSION MECHANISM FOR PROSTHETIC FEET - A vertical suspension system for a prosthetic foot includes a first member operatively coupleable to an amputee's residual leg. The suspension system can also include a second member coupleable to a prosthetic foot. One or more upper leaf springs and one or more lower leaf springs extend between and are attached to the first and second members such that at least one of the ends of each leaf spring is rotationally fixed to the first or second members, where the upper an lower leaf springs are spaced apart from each other. | 04-04-2013 |
| 20130144403 | PROSTHETIC FOOT WITH DUAL FOOT BLADES AND VERTICALLY OFFSET TOE - Prosthetic feet having improved vertical suspension are provided. A prosthetic foot can include a foot member having a change in curvature near a toe section so that the toe section is downwardly vertically offset from the remainder of the foot member. A prosthetic foot can have upper and lower foot members that extend parallel to each other and are separated by a gap. The lower foot member can extend beyond a distal end of the upper foot member to form a toe section. An adapter for coupling a prosthetic foot to another prosthetic component is also provided. The adapter includes a cavity for receiving the proximal end of a prosthetic foot. The prosthetic foot is secured to the adapter with a curable material such as epoxy to provide a more lightweight system. | 06-06-2013 |
| 20130173023 | PROSTHETIC FOOT WITH RESILIENT HEEL - A prosthetic foot can include a resilient heel member that can be removably coupled to the bottom of a plate-like foot member of the prosthetic foot. The heel member can be made of a resilient material, such as foam. The heel member can have a shape that corresponds to a foot cover and allows the prosthetic foot to fit within a foot cover. A lip may be provided to engage with a corresponding portion of the foot cover to secure the heel member within the foot cover. A rib can be located on the bottom of the heel member to create horizontal or vertical displacement of the foot at heel strike. A recess can be created in the heel member to removably receive an insert, which can alter the stiffness of the heel member. | 07-04-2013 |
| 20140005801 | ALIGNMENT ADAPTER FOR PROSTHETIC SPORT FEET | 01-02-2014 |
| 20140039642 | PROSTHETIC ANKLE MODULE - A prosthetic ankle module allows for translational and/or rotational movement of a prosthetic foot relative to an adapter. The ankle module can include a four-bar linkage assembly. Links of the linkage assembly can be arranged in various configurations, e.g., parallel or non-parallel and having equal or non-equal lengths, to provide different functions and benefits, e.g., dorsiflexion, plantar flexion, vertical shock absorption, inversion, eversion, and/or rotation about the sagittal axis. Other types of linkage assemblies are also possible. A prosthetic foot can further include a support spring to limit the range of motion of the adapter in use. | 02-06-2014 |
| 20140243997 | PROSTHETIC FOOT WITH ENHANCED STABILITY AND ELASTIC ENERGY RETURN - A prosthetic foot comprises an attachment member and two or more flexible members. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The two or more flexible members can be rotatably attached to the attachment member by rotatable joints such that the flexible members can both rotate and flex relative to the attachment member when the prosthetic foot contacts the ground. | 08-28-2014 |
| 20140257523 | SMOOTH ROLLOVER INSOLE FOR PROSTHETIC FOOT - A prosthetic foot includes a foot member, a heel member operatively coupled to the foot member. At least one of the heel member and foot member define an arch portion that faces a support surface that the prosthetic foot contacts during use. An insole member contacts said arch portion, the insole member configured to facilitate a rollover of the prosthetic foot in at least one of a lateral-medial and a medial-lateral direction during ambulation. | 09-11-2014 |
| 20140324190 | ACTUATOR ASSEMBLY FOR PROSTHETIC OR ORTHOTIC JOINT - A system and method associated with the movement of a limb. In one example, the system, such as a prosthetic or orthotic system, includes an actuator that actively controls, or adjusts, the angle between a foot unit and a lower limb member. The actuator preferably selectively locks during a desired phase in a gait cycle of the limb and minimizes friction against a rotor of the actuator. A processing module may control movement of the actuator based on data obtained from a sensor module. For instance, sensing module data may include information relating to the gait of a user and may be used to adjust the foot unit to substantially mimic the movement of a natural, healthy ankle. The system may further accommodate, for example, level ground walking, traveling up/down stairs, traveling up/down sloped surfaces, and various other user movements. In addition, the processing module may receive user input or display output signals through an external interface. For example, the processing module may receive a heel height input from the user. | 10-30-2014 |
| 20150209160 | PROSTHETIC SPORT FEET - Various features for improving the performance of prosthetic sport feet are provided. A fairing for a prosthetic sport foot can include foam components that are coupled to the foot and an elastane cover. The fairing is configured to alter the cross-sectional profile of the foot to produce a more aerodynamic shape. A prosthetic sport foot can include a hollow foot member that can be lighter weight and provide improved performance. A prosthetic sport foot can include an adjustable tension strap extending between and coupled to two portions of the foot member. A prosthetic sport foot, such as a prosthetic running foot or prosthetic cycling foot, can include an aerodynamic fairing and a cover. A prosthetic sport foot can have a varying-width profile such that a mid-section of the foot is narrower and a toe portion flares outward. | 07-30-2015 |
| 20150245927 | PROSTHETIC AND ORTHOTIC DEVICES HAVING MAGNETORHEOLOGICAL ELASTOMER SPRING WITH CONTROLLABLE STIFFNESS - A prosthetic or orthotic device includes a body configured to support at least a portion of a human limb of a user wearing the prosthetic or orthotic device. The device can also include a shock absorption member coupled to the body. The shock absorption member includes one or more magnetorheological elastomer (MRE) springs disposed between a first portion of the body and a second portion of the body. The one or more MRE springs are selectively actuatable to vary a stiffness of the shock absorption member via the application of a magnetic flux, thereby adjusting a stiffness of the body of the prosthetic or orthotic device to a level corresponding to an activity level of the user. | 09-03-2015 |
| 20150250623 | FRICTIONLESS VERTICAL SUSPENSION MECHANISM FOR PROSTHETIC FEET - A vertical suspension system for a prosthetic foot includes a first member operatively coupleable to an amputee's residual leg. The suspension system can also include a second member coupleable to a prosthetic foot. One or more upper leaf springs and one or more lower leaf springs extend between and are attached to the first and second members such that at least one of the ends of each leaf spring is rotationally fixed to the first or second members, where the upper an lower leaf springs are spaced apart from each other. | 09-10-2015 |
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| 20090287315 | FOOT PROSTHESIS WITH RESILIENT MULTI-AXIAL ANKLE - The present foot prosthesis includes various structural features that provide the foot with advantageous rollover properties. In certain embodiments, the foot guides rollover toward the medial side. For example, an asymmetrical upper element and a correspondingly shaped resilient ankle member support more of the wearer's weight on the lateral side as the foot rolls over. In another embodiment, stiffeners added to the resilient ankle member increase the stiffness on the lateral side relative to the medial side. In certain other embodiments, the foot provides progressively increasing support from mid stance through toe off. For example, a gap between the resilient ankle member and the lower element closes during the later portion of the wearer's gait. The closing gap increases a contact area between the resilient ankle member and the lower element, providing progressively increasing support. In another embodiment, the foot includes a gap between a lower front edge of an attachment adapter and the upper element. The gap may be filled with a resilient material. | 11-19-2009 |
| 20090306792 | FOOT PROSTHESIS WITH RESILIENT MULTI-AXIAL ANKLE - The present foot prosthesis includes various structural features that provide the foot with advantageous rollover properties. In certain embodiments, the foot guides rollover toward the medial side. For example, an asymmetrical upper element and a correspondingly shaped resilient ankle member support more of the wearer's weight on the lateral side as the foot rolls over. In another embodiment, stiffeners added to the resilient ankle member increase the stiffness on the lateral side relative to the medial side. In certain other embodiments, the foot provides progressively increasing support from mid stance through toe off. For example, a gap between the resilient ankle member and the lower element closes during the later portion of the wearer's gait. The closing gap increases a contact area between the resilient ankle member and the lower element, providing progressively increasing support. In another embodiment, the foot includes a gap between a lower front edge of an attachment adapter and the upper element. The gap may be filled with a resilient material. | 12-10-2009 |
| 20100030342 | ENERGY RETURNING PROSTHETIC JOINT - An energy returning prosthetic joint arranged for use as a knee joint in prosthetic limbs includes a biasing or spring member connected to upper and lower attachment members. The spring member includes a composite material having an energy returning property. A cushion may be provided within the range of curvature of the spring member, or be connected to frame members in order to limit motion of the spring member. | 02-04-2010 |
| 20110276149 | LOW PROFILE PROSTHETIC FOOT - A low profile prosthetic foot comprises a foot member extending at an incline from an anterior portion to a posterior portion thereof and configured to flex during motion, and an adapter mounted solely at a posterior section thereof to the posterior portion of the foot member so that the adapter's anterior section can move relative to the foot member and “roll-up” onto the foot member during motion. | 11-10-2011 |
| 20120010730 | FOOT PROSTHESIS WITH RESILIENT MULTI-AXIAL ANKLE - The present foot prosthesis includes various structural features that provide the foot with advantageous rollover properties. In certain embodiments, the foot guides rollover toward the medial side. For example, an asymmetrical upper element and a correspondingly shaped resilient ankle member support more of the wearer's weight on the lateral side as the foot rolls over. In another embodiment, stiffeners added to the resilient ankle member increase the stiffness on the lateral side relative to the medial side. In certain other embodiments, the foot provides progressively increasing support from mid stance through toe off. For example, a gap between the resilient ankle member and the lower element closes during the later portion of the wearer's gait. The closing gap increases a contact area between the resilient ankle member and the lower element, providing progressively increasing support. In another embodiment, the foot includes a gap between a lower front edge of an attachment adapter and the upper element. The gap may be filled with a resilient material. | 01-12-2012 |
| 20130110258 | LOW PROFILE PROSTHETIC FOOT | 05-02-2013 |
| 20150025654 | LOW PROFILE PROSTHETIC FOOT - A low profile prosthetic foot comprises a foot member extending at an incline from an anterior portion to a posterior portion thereof and configured to flex during motion, and an adapter mounted solely at a posterior section thereof to the posterior portion of the foot member so that the adapter's anterior section can move relative to the foot member and “roll-up” onto the foot member during motion. | 01-22-2015 |
| 20150328020 | PROSTHETIC FOOT WITH REMOVABLE FLEXIBLE MEMBERS - A prosthetic foot can include an attachment member, at least one first brace, at least one first flexible member, an unpowered actuator, at least one second brace, and at least one second flexible member. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The at least one first brace can mount to the attachment member and the at least one first flexible member can connect to the attachment member by the at least one first brace such that a force between the ground and the attachment member can be supported by the at least one first flexible member. The unpowered actuator can mount to the attachment member and the at least one second brace can mounted to the actuator. The at least one second flexible member can connect to the attachment member by the at least one second brace such that a force between the ground and the attachment member can be supported by the at least one second flexible member. | 11-19-2015 |
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| 20110055189 | FRAMEWORK FOR SELECTING AND PRESENTING ANSWER BOXES RELEVANT TO USER INPUT AS QUERY SUGGESTIONS - Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying answer boxes for presentation to a user. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of, while receiving an input entered in a search engine query input field by a first user, and before the first user has submitted the input as a search request, obtaining content for an answer box for the input and presenting the answer box to the first user. The answer box can be an answer box associated with a dominant query for the input, or can be an answer box identified from historical answer box data for the input. | 03-03-2011 |
| 20140019433 | FRAMEWORK FOR SELECTING AND PRESENTING ANSWER BOXES RELEVANT TO USER INPUT AS QUERY SUGGESTIONS - Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying answer boxes for presentation to a user. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of, while receiving an input entered in a search engine query input field by a first user, and before the first user has submitted the input as a search request, obtaining content for an answer box for the input and presenting the answer box to the first user. The answer box can be an answer box associated with a dominant query for the input, or can be an answer box identified from historical answer box data for the input. | 01-16-2014 |
| 20150324378 | FRAMEWORK FOR SELECTING AND PRESENTING ANSWER BOXES RELEVANT TO USER INPUT AS QUERY SUGGESTIONS - Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying answer boxes for presentation to a user. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of, while receiving an input entered in a search engine query input field by a first user, and before the first user has submitted the input as a search request, obtaining content for an answer box for the input and presenting the answer box to the first user. The answer box can be an answer box associated with a dominant query for the input, or can be an answer box identified from historical answer box data for the input. | 11-12-2015 |
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| 20130309498 | Granulated Organopolysiloxane Products - A granulated product comprises a liquid organosilicon compound supported on a particulate carrier which is agglomerated into granules by a binder. A process for the production of a granulated product comprises depositing an organosilicon compound and a binder in a liquid state on a particulate carrier and subjecting the carrier thus treated to conditions in which the binder is solidified, thereby agglomerating carrier particles into granules. The particulate carrier is anhydrous sodium sulfate of mean particle size 1 to 40 μm. | 11-21-2013 |
| 20140142215 | Gypsum Materials - The present invention relates to hydrophobic gypsum and to a process for making gypsum hydrophobic, in particular it relates to a powdered hydrophobing additive, a hydrophobic gypsum composition and method for preparing same using granules containing organosilicon compounds as hydrophobing additives. The invention provides a granulated additive for rendering gypsum material hydrophobic, comprising a particulate carrier on which is deposited an organosilicon component, a binder polymer and an emulsifier for the organosilicon component. | 05-22-2014 |
| 20150125612 | Water Repellent Organosilicon Materials - A process for increasing the hydrophobicity of a porous product by treating the product, or a composition providing for the product, with a water repellent material, characterised in that the porous product or a composition providing the product, is treated with an aqueous suspension of microcapsules where the microcapsules comprise a water repellent organosilicon core material selected from an organosilane, a partially condensed organosilane and a branched siloxane resin, and a shell of a silicon-based network polymer comprising silica units. | 05-07-2015 |
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| 20100183752 | Foamable Compositions - A propellant-free foamable transparent composition, foamable by mixing with air or by hand rubbing, comprises a water-immiscible oil composition comprising at least one water-immiscible oil, which may be a mineral oil or vegetable oil, a siloxane resin foam stabiliser which is miscible in the water-immiscible oil composition to form a transparent liquid, and potentially a siloxane resin solubilising agent. The composition may be used for cosmetic applications. | 07-22-2010 |
| 20150087747 | Water Repellent Organopolysiloxane Materials - A process for increasing the hydrophobicity of a porous product by treating the product or a composition providing the product, with a water repellent material, characterised in that the porous product or a composition providing the product is treated with an aqueous suspension of microcapsules, where the microcapsules comprise a water repellent organopolysiloxane core material and a shell of a silicon-based network polymer comprising silica units. | 03-26-2015 |
| 20150259249 | Fast Wetting Agent For Dry-mix Applications - A particulate wetting and hydrophobing additive comprising components a) and b), where: component a) is a disiloxane having structure (I) Where R | 09-17-2015 |
| 20150353744 | Method Of Forming A Hydrolysis Resistant Aqueous Emulsion - A hydrolysis resistant aqueous emulsion includes a hydrolyzable silicon containing compound. This emulsion is formed by a method that includes the step of (A) forming a seed emulsion that includes (1) an emulsifier, (2) water, and (3) a first oil phase. The method also includes the step of (B) adding a second oil phase, including a hydrolyzable silicon containing compound, to the seed emulsion. A weight ratio of the second oil phase including the hydrolyzable silicon containing compound to the first oil phase in the seed emulsion is from 0.5 to 50. Moreover, a total weight of the first and second oil phases in the emulsion is at least 60 weight percent. | 12-10-2015 |
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| 20100217607 | Audio Decoder, Audio Encoder, Methods for Decoding and Encoding an Audio Signal and Computer Program - An audio decoder for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content comprises a linear-prediction-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of linear-prediction domain parameters associated with the audio frame and a frequency-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of frequency-domain parameters, taking into account a transform window out of a set comprising a plurality of different transform windows. The audio decoder comprises a signal combiner configured to overlap-and-add-time-domain representations of subsequent audio frames encoded in different domains, in order to smoothen a transition between the time-domain representations of the subsequent frames. The set of transform windows comprises one or more windows specifically adapted for a transition between a frequency-domain core mode and a linear-prediction-domain core mode. | 08-26-2010 |
| 20110173010 | Audio Encoder and Decoder for Encoding and Decoding Audio Samples - An audio encoder for encoding audio samples has a first time domain aliasing introducing encoder configured to decode audio samples in a first encoding domain and having a first framing rule, a start window and a stop window. The audio encoder further has a second encoder configured to encode samples in a second encoding domain and having a predetermined frame size number of audio samples, and a coding warm-up period number of audio samples, the second encoder having a different second framing rule, a frame of the second encoder being an encoded representation of a number of successive audio samples that is equal to the predetermined frame size number of audio samples. The audio encoder further has a controller switching from the first to the second encoder and for modifying the second framing rule or for modifying the start or the stop window of the first encoder. | 07-14-2011 |
| 20120010880 | APPARATUS, METHOD AND COMPUTER PROGRAM FOR GENERATING A REPRESENTATION OF A BANDWIDTH-EXTENDED SIGNAL ON THE BASIS OF AN INPUT SIGNAL REPRESENTATION USING A COMBINATION OF A HARMONIC BANDWIDTH-EXTENSION AND A NON-HARMONIC BANDWIDTH-EXTENSION - An apparatus for generating a representation of a bandwidth-extended signal on the basis of an input signal representation includes a phase vocoder configured to obtain values of a spectral domain representation of a first patch of the bandwidth-extended signal on the basis of the input signal representation. The apparatus also includes a value copier configured to copy a set of values of the spectral domain representation of the first patch, which values are provided by the phase vocoder, to obtain a set of values of a spectral domain representation of a second patch, wherein the second patch is associated with higher frequencies than the first patch. The apparatus is configured to obtain the representation of the bandwidth-extended signal using the values of the spectral domain representation of the first patch and the values of the spectral domain representation of the second patch. | 01-12-2012 |
| 20130066640 | AUDIO ENCODING/DECODING SCHEME HAVING A SWITCHABLE BYPASS - An apparatus for encoding includes a first domain converter, a switchable bypass, a second domain converter, a first processor and a second processor to obtain an encoded audio signal having different signal portions represented by coded data in different domains, which have been coded by different coding algorithms. Corresponding decoding stages in the decoder together with a bypass for bypassing a domain converter allow the generation of a decoded audio signal with high quality and low bit rate. | 03-14-2013 |
| 20150154967 | LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES - An audio encoder has a first information sink oriented encoding branch, a second information source or SNR oriented encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch has a converter into a specific domain different from the spectral domain, and wherein the second encoding branch furthermore has a specific domain coding branch, and a specific spectral domain coding branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder for decoding a signal, and a third domain decoder and two cascaded switches for switching between the decoders. | 06-04-2015 |
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| 20110173009 | Apparatus and Method for Encoding/Decoding an Audio Signal Using an Aliasing Switch Scheme - An apparatus for encoding an audio signal includes the windower for windowing a first block of the audio signal using an analysis window having an aliasing portion and a further portion. The apparatus furthermore includes a processor for processing the first sub-block of the audio signal associated with the aliasing portion by transforming the sub-block from a domain into a different domain subsequent to windowing the first sub-block to obtain the processed first sub-block, and for processing a second sub-block of the audio signal associated with the further portion by transforming the second sub-block from the domain into the different domain before windowing the second sub-block to obtain a processed second sub-block. The apparatus furthermore includes a transformer for converting the processed first sub-block and the processed second sub-block from the different domain into a further different domain using the same block transform rule to obtain a converted first block which may then be compressed using any of the well-known data compression algorithms. Thus, a critically sampled switch between two coding modes can be obtained, since aliasing portions occurring in two different domains are matched to each other. | 07-14-2011 |
| 20110202354 | Low Bitrate Audio Encoding/Decoding Scheme Having Cascaded Switches - An audio encoder has a first information sink oriented encoding branch such as a spectral domain encoding branch, a second information source or SNR oriented encoding branch such as an LPC-domain encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch has a converter into a specific domain different from the spectral domain such as an LPC analysis stage generating an excitation signal, and wherein the second encoding branch furthermore has a specific domain coding branch such as LPC domain processing branch, and a specific spectral domain coding branch such as LPC spectral domain processing branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder such as a spectral domain decoding branch, a second domain decoder such as an LPC domain decoding branch for decoding a signal such as an excitation signal in the second domain, and a third domain decoder such as an LPC-spectral decoder branch and two cascaded switches for switching between the decoders. | 08-18-2011 |
| 20110238426 | Audio Decoder, Audio Encoder, Method for Decoding an Audio Signal, Method for Encoding an Audio Signal, Computer Program and Audio Signal - An audio decoder for providing a decoded audio information on the basis of an entropy encoded audio information includes a context-based entropy decoder configured to decode the entropy-encoded audio information in dependence on a context, which context is based on a previously-decoded audio information in a non-reset state-of-operation. The context-based entropy decoder is configured to select a mapping information, for deriving the decoded audio information from the encoded audio information, in dependence on the context. The context-based entropy decoder includes a context resetter configured to reset the context for selecting the mapping information to a default context, which default context is independent from the previously-decoded audio information, in response to a side information of the encoded audio information. | 09-29-2011 |
| 20120022881 | AUDIO ENCODER, AUDIO DECODER, ENCODED AUDIO INFORMATION, METHODS FOR ENCODING AND DECODING AN AUDIO SIGNAL AND COMPUTER PROGRAM - An audio decoder for providing a decoded audio information on the basis of an encoded audio information includes a window-based signal transformer configured to map a time-frequency representation, which is described by the encoded audio information, to a time-domain representation. The window-based signal transformer is configured to select a window, out of a plurality of windows including windows of different transition slopes and windows of different transform length, on the basis of a window information. The audio decoder includes a window selector configured to evaluate a variable-codeword-length window information in order to select a window for a processing of a given portion of the time-frequency representation associated with a given frame of the audio information. | 01-26-2012 |
| 20120158409 | Bandwidth Extension Encoder, Bandwidth Extension Decoder and Phase Vocoder - A bandwidth extension encoder for encoding an audio signal has a signal analyzer, a core encoder and a parameter calculator. The audio signal has a low frequency signal having a core frequency band and a high frequency signal having an upper frequency band. The signal analyzer is configured for analyzing the audio signal, the audio signal having a block of audio samples, the block having a specified length in time. The signal analyzer is furthermore configured for determining from a plurality of analysis windows an analysis window to be used for performing a bandwidth extension in a bandwidth extension decoder. The core encoder is configured for encoding the low frequency signal to acquire an encoded or frequency signal. The parameter calculator is configured for calculating bandwidth extension parameters from the high frequency signal. | 06-21-2012 |
| 20120265541 | AUDIO SIGNAL ENCODER, AUDIO SIGNAL DECODER, METHOD FOR PROVIDING AN ENCODED REPRESENTATION OF AN AUDIO CONTENT, METHOD FOR PROVIDING A DECODED REPRESENTATION OF AN AUDIO CONTENT AND COMPUTER PROGRAM FOR USE IN LOW DELAY APPLICATIONS - An audio signal encoder includes a transform-domain path which obtains spectral coefficients and noise-shaping information on the basis of a portion of the audio content, and which windows a time-domain representation of the audio content and applies a time-domain-to-frequency-domain conversion. The audio signal decoder includes a CELP path to obtain a code-excitation information and a LPD parameter information. A converter applies a predetermined asymmetric analysis window in both if a current portion is followed by a subsequent portion to be encoded in the transform-domain mode or in the CELP mode. Aliasing cancellation information is selectively provided in the later case. | 10-18-2012 |
| 20120271644 | AUDIO SIGNAL ENCODER, AUDIO SIGNAL DECODER, METHOD FOR ENCODING OR DECODING AN AUDIO SIGNAL USING AN ALIASING-CANCELLATION - An audio signal decoder includes a transform domain path configured to obtain a time-domain representation of a portion of an audio content on the basis of a first set of spectral coefficients, a representation of an aliasing-cancellation stimulus signal and a plurality of linear-prediction-domain parameters. The transform domain path applies a spectrum shaping to the first set of spectral coefficients to obtain a spectrally-shaped version thereof. The transform domain path obtains a time-domain representation of the audio content on the basis of the spectrally-shaped version of the first set of spectral coefficients. The transform domain path includes an aliasing-cancellation stimulus filter to filter the aliasing-cancellation stimulus signal in dependence on at least a subset of the linear-prediction-domain parameters. The transform domain path also includes a combiner configured to combine the time-domain representation of the audio content with an aliasing-cancellation synthesis signal to obtain an aliasing reduced time-domain signal. | 10-25-2012 |
| 20130090934 | APPARATUS AND METHOD FOR GENERATING A SYNTHESIS AUDIO SIGNAL AND FOR ENCODING AN AUDIO SIGNAL - An apparatus for generating a synthesis audio signal using a patching control signal has a first converter, a spectral domain patch generator, a high frequency reconstruction manipulator and a combiner. The first converter is configured for converting a time portion of an audio signal into a spectral representation. The spectral domain patch generator is configured for performing a plurality of different spectral domain patching algorithms, wherein each patching algorithm generates a modified spectral representation having spectral components in an upper frequency band derived from corresponding spectral components in a core frequency band of the audio signal. The spectral domain patch generator is furthermore configured to select a first spectral domain patching algorithm from the plurality of patching algorithms for a first time portion and a second spectral domain patching algorithm from the plurality of patching algorithm for a second different time portion in accordance with the patching control signal to obtain the modified spectral representation. | 04-11-2013 |
| 20130096930 | Multi-Resolution Switched Audio Encoding/Decoding Scheme - An audio encoder for encoding an audio signal has a first coding branch, the first coding branch comprising a first converter for converting a signal from a time domain into a frequency domain. Furthermore, the audio encoder has a second coding branch comprising a second time/frequency converter. Additionally, a signal analyzer for analyzing the audio signal is provided. The signal analyzer, on the hand, determines whether an audio portion is effective in the encoder output signal as a first encoded signal from the first encoding branch or as a second encoded signal from a second encoding branch. On the other hand, the signal analyzer determines a time/frequency resolution to be applied by the converters when generating the encoded signals. An output interface includes, in addition to the first encoded signal and the second encoded signal, a resolution information identifying the resolution used by the first time/frequency converter and used by the second time/frequency converter. | 04-18-2013 |
| 20130124215 | CODER USING FORWARD ALIASING CANCELLATION - A codec supporting switching between time-domain aliasing cancellation transform coding mode and time-domain coding mode is made less liable to frame loss by adding a further syntax portion to the frames, depending on which the parser of the decoder may select between a first action of expecting the current frame to have, and thus reading forward aliasing cancellation data from the current frame and a second action of not-expecting the current frame to have, and thus not reading forward aliasing cancellation data from the current frame. In other words, while a bit of coding efficiency is lost due to the provision of the new syntax portion, it is merely the new syntax portion which provides for the ability to use the codec in case of a communication channel with frame loss. Without the new syntax portion, the decoder would not be capable of decoding any data stream portion after a loss and will crash in trying to resume parsing. Thus, in an error prone environment, the coding efficiency is prevented from vanishing by the introduction of the new syntax portion. | 05-16-2013 |
| 20130332152 | APPARATUS AND METHOD FOR ERROR CONCEALMENT IN LOW-DELAY UNIFIED SPEECH AND AUDIO CODING - An apparatus for generating spectral replacement values for an audio signal has a buffer unit for storing previous spectral values relating to a previously received error-free audio frame. Moreover, the apparatus includes a concealment frame generator for generating the spectral replacement values, when a current audio frame has not been received or is erroneous. The previously received error-free audio frame has filter information, the filter information having associated a filter stability value indicating a stability of a prediction filter. The concealment frame generator is adapted to generate the spectral replacement values based on the previous spectral values and based on the filter stability value. | 12-12-2013 |
| 20150332693 | CONCEPT FOR CODING MODE SWITCHING COMPENSATION - A codec allowing for switching between different coding modes is improved by, responsive to a switching instance, performing temporal smoothing and/or blending at a respective transition. | 11-19-2015 |
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| 20080237475 | Digital Identification and Vector Quantization Methods and Systems for Detector Crystal Recognition in Radiation Detection Machines - A digital method and system allowing crystal identification in radiation detector machines is described. The crystal identification is based on recognition of radiation detector signal shape through discrimination of detector signal's dynamic characteristics. The digital method is based on recursive and non-recursive algorithms, such as adaptive filtering combined or not with quantization methods. These digital algorithms, commonly used in other engineering applications, were modified and tailored for radiation detection. Although the method was specially designed for crystal identification measurement, which is exemplified here, it can effectively recognize the detector signal shape in any radiation detection context. | 10-02-2008 |
| 20080317200 | Method and System for Low Radiation Computed Tomography - A method for single photon counting transmission computed tomography (CT) is described. The method is based on an apparatus consisting of a radiation source and detectors on an opposite side of the subject from the source. The radiation source is for example an X-ray tube. The detectors are independently connected to parallel, fast, low-noise processing electronics capable of recording and counting individual X-ray photons at very high rate. In one embodiment of the invention, said detector is made of a scintillator coupled to a photodetector. The photodetector can be an avalanche photodiode (APD). The method comprises the steps of: directing the low energy radiation source toward the subject; detecting the radiation transmitted through the subject towards the detectors and recording the position and energy of each individual X-ray photon; rotating the radiation source and detectors around the subject; recording data for each position of the radiation source and detectors around the subject to form projections; and creating a CT image from the recorded projection data. The proposed method allows enhancing CT image contrast and reducing radiation dose to the patient by counting individual X-ray photons. | 12-25-2008 |
| 20090123048 | Image Reconstruction Methods Based on Block Circulant System Matrices - An iterative image reconstruction method used with an imaging system that generates projection data, the method comprises: collecting the projection data; choosing a polar or cylindrical image definition comprising a polar or cylindrical grid representation and a number of basis functions positioned according to the polar or cylindrical grid so that the number of basis functions at different radius positions of the polar or cylindrical image grid is a factor of a number of in-plane symmetries between lines of response along which the projection data are measured by the imaging system; obtaining a system probability matrix that relates each of the projection data to each basis function of the polar or cylindrical image definition; restructuring the system probability matrix into a block circulant matrix and converting the system probability matrix in the Fourier domain; storing the projection data into a measurement data vector; providing an initial polar or cylindrical image estimate; for each iteration; recalculating the polar or cylindrical image estimate according to an iterative solver based on forward and back projection operations with the system probability matrix in the Fourier domain; and converting the polar or cylindrical image estimate into a Cartesian image representation to thereby obtain a reconstructed image. | 05-14-2009 |
| 20120063658 | IMAGE RECONSTRUCTION BASED ON ACCELERATED METHOD USING POLAR SYMMETRIES - An image reconstruction system and method based on image projection data collected by an imaging system having N tubes of response (TORs) having N | 03-15-2012 |
| 20120290519 | METHOD AND APPARATUS FOR IDENTIFICATION OF LINE-OF-RESPONSES OF MULTIPLE PHOTONS IN RADIATION DETECTION MACHINES - The present disclosure relates to a method and an apparatus for identifying line-of-responses (LOR) of photons. A radiation detection machine measures the photons. LOR identification errors are then mitigated using pattern recognition of the measurements. In some embodiments, the photons may comprise positron annihilation photons, each position annihilation photon being associated with one or more scattered photons. In yet some embodiments, pattern recognition may be implemented in a neural network. | 11-15-2012 |
