Patent•
Identify ablation pattern for use in an ablation
11 Feb 2021-
About: The article was published on 2021-02-11. It has received 1 citations till now. The article focuses on the topics: Ablation.
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Patent•
01 Mar 2021
TL;DR: In this article, a set of electrophysiological (EP) signals measured by the electrodes are aggregated to form a statistical distribution of the acquisitions as a function of estimated DOA and distance.
Abstract: A method includes receiving, via a plurality of electrodes in a heart, a collection of acquisitions, each including a set of electrophysiological (EP) signals measured by the electrodes. A respective direction of arrival (DOA) and a respective distance relative to the electrodes from which the set of EP signals originated are estimated for each acquisition. The acquisitions are aggregated, to form a statistical distribution of the acquisitions as a function of estimated DOA and distance. Using a statistical test, it is checked whether the statistical distribution is consistent, in accordance with a predefined consistency criterion. If the statistical distribution is found consistent, an estimated location in the heart of a focal source of an arrhythmogenic activity that generated the received EP signals is derived from the statistical distribution. The estimated location of the focal source is overlaid on an anatomical map of at least a portion of the heart.
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Patent•
23 Jul 1999TL;DR: In this article, a parser unit is communicatively coupled to the network fetcher to parse the retrieved information based on predetermined syntax and an interpreter unit and a state machine are also used.
Abstract: A voice browser to process a markup language document. A voice browser includes a network fetcher unit to retrieve information from a destination of an information source. A parser unit is communicatively coupled to the network fetcher to parse the retrieved information based on predetermined syntax. The parser unit generates a tree structure representing the hierarchy of the retrieved information. An interpreter unit and a state machine are also used. The method includes the steps of retrieving and parsing a markup language document to determine at least one user input, determining whether the user input corresponds to a predetermined grammar, and using the predetermined grammar when the user input corresponds to the predetermined grammar. The method of determining a grammar is based upon phonetic rules and pronunciation. The grammar is sent to a speech recognition engine and compared to a user input.
539 citations
Patent•
02 Mar 2001
TL;DR: In this paper, a selection of one or more relevant sequences of terms, such as relevant text, is provided, and several shorter sequences of words such as phrases are extracted from the provided relevant sequences.
Abstract: A phrase discovery is a method of identifying sequences of terms in a database. First, a selection of one or more relevant sequences of terms, such as relevant text, is provided. Next, several shorter sequences of terms, such as phrases, are extracted from the provided relevant sequences of terms. The extracted sequences of terms are then reduced through a culling process. A gathering process then emphasizes the more relevant of the extracted and culled sequences of terms and de-emphasizes the more generic of the extracted and culled sequences of terms. The gathering process can also include iteratively retrieving additional selections of relevant sequences (e.g., text), extracting and culling additional sequences of terms (e.g., phrases), emphasizing and de-emphasizing extracted and culled sequences of terms and accumulating all gathered sequences of terms. The resulting gathered sequences of terms are then output.
269 citations
Patent•
08 Aug 2003
TL;DR: In this paper, a state transition inference engine, a heuristic answer engine and a parser generator with semantic augmentations are used to answer simple and complex questions, understand complex requests, pursues the user for further information when the request is incomplete, and in general provides customer support with a human like conversation while, at the same time, it is capable to interact with a company's proprietary database.
Abstract: Apparatus with accompanying subsystems and methods for developing conversational computer applications. As a user interface, the apparatus allows for a user to initiate the conversation. The apparatus also answers simple and complex questions, understands complex requests, pursues the user for further information when the request is incomplete, and in general provides customer support with a human like conversation while, at the same time, it is capable to interact with a company's proprietary database. As a development tool, the apparatus allows a software developer to implement a conversational system much faster than takes, with current commercial systems to implement basic dialog flows. The apparatus contains three major subsystems: a state transition inference engine, a heuristic answer engine and a parser generator with semantic augmentations. A main process broker controls the flow and the interaction between the different subsystems. The state transition inference engine handles requests that require processing a transaction or retrieving exact information. The heuristic answer engine answers questions that do not require exact answers but enough information to fulfill the user's request. The parser generator processes the user's natural language request, that is, it processes the syntactical structure of the natural language requests and it builds a conceptual structure of the request. After the parser generator processes the user's request, a main process broker feeds the conceptual structure to either the heuristic answer engine or to the state transition inference engine. The interaction between the main process broker and the subsystems creates a conversational environment between the user and the apparatus, while the apparatus uses information from proprietary databases to provide information, or process information, during the course of the conversation. The apparatus is equipped with a programming interface that allows implementers to declare and specify transactions based requests and answers to a multiplicity of questions. The apparatus may be used with a speech recognition interface, in which case, the apparatus improves the recognition results through the context implicitly created by the apparatus.
202 citations
Patent•
14 Jan 2005
TL;DR: In this article, an apparatus for detecting sleep disordered breathing (SDB), cardiac events and/or heart rate variability (HRV) in a subject from a physiological electrocardiogram (ECG) signal.
Abstract: An apparatus is disclosed for detecting sleep disordered breathing (SDB), cardiac events and/or heart rate variability (HRV) in a subject from a physiological electrocardiogram (ECG) signal. The apparatus includes means for monitoring the ECG signal and means for extracting from the ECG signal parameters indicative of the SDB, cardiac events and/or HRV. The apparatus also includes means utilizing the parameters to detect the SDB, cardiac events and/or HRV. The SDB, cardiac events and/or HRV may be detected in real time, breath by breath and/or post acquisition of the ECG signal. The apparatus may include means for determining a treatment for the SDB, cardiac events and/or HRV. An electromyogram (EMG) signal may be extracted from the ECG signal to provide a marker for distinguishing OSA from CSA. The marker may indicate that treatment levels should be varied to avoid elevated cardiac risk. A method of detecting SDB, cardiac events and/or HRV in the subject is also disclosed.
183 citations
Patent•
06 Mar 1998
TL;DR: A document information system and a computer implemented method for use in the field of home healthcare, post-acute clinical care, hospice and home infusion comprising a data storage means, phone interface means for inputting and retrieving data and a verification means using one or more calendars to verify medical tasks as discussed by the authors.
Abstract: A document information system and a computer implemented method for use in the field of home healthcare, post-acute clinical care, hospice and home infusion comprising a data storage means, phone interface means for inputting and retrieving data and a verification means using one or more calendars to verify medical tasks.
142 citations