30 results about "Rhythm analysis" patented technology

An automated external defibrillator (AED) and methods for reducing the delay between termination of cardiopulmonary resuscitation (CPR) and administration of a defibrillating shock, among other disclosed apparatus and methods. In one embodiment, the AED includes an ECG sensor that obtains an ECG signal corresponding to patient heart activity and a prompting device that provides instructions regarding cardiopulmonary resuscitation. The AED also has a control system including a microprocessor programmed to run two rhythm analysis algorithms after instructions to terminate CPR. The two rhythm analysis algorithms analyze segments of the ECG signal for recognizing the presence of a shockable rhythm, with one algorithm having a delayed start relative to the other algorithm. The AED additionally includes a therapy generation circuit for treating the shockable rhythm with a defibrillation pulse in response to the control system determining the presence of a shockable rhythm.

A pre-conditioned ECG system and method includes a patient signaling device configured to alert the patient to minimize the patient's activity so that an ECG measurement may be taken, and further alerts the patient when the measurement is completed. The pre-conditioned ECG system and method also includes a pre-set buffer configured to hold a preset length of ECG data, and further configured to hold pre-set ECG parameters such as mean R-R interval, standard deviation of R-R interval, or simple rhythm analysis. The system and method may analyze the current 10 seconds of ECG data when the preset parameters are met or when selected parameters are met.

The invention discloses a method and system for restricting the ECG (Electrocardiogram) interference caused by cardio-pulmonary resuscitation and an external defibrillator, relating to the technical field of EGG detection. The method comprises the following steps: 1, acquiring an ECG signal and a voltage signal of a reference signal; 2, processing and analyzing the acquired ECG signal and voltage signal; 3, comparing the processed signals with a set value; 4, when the processed signal is greater than the set value, carrying out adaptive filtering; 5, when the processed signal is less than the set value, carrying out rhythm analysis; 6, processing and analyzing the signal subjected to adaptive filtering and returning to continuously execute the step 3. The method and system and the external defibrillator disclosed by the invention, the acquired ECG signal and the reference signal subjected to frequency domain analysis, and the energy of inference in the ECG signal and the proportion to the interference energy to the total energy of signals are calculated. The frequency of circulation filtering and the step length factor of adaptive filtering are controlled by using the proportion of the interference energy so as to realize dynamic adjustment of the filtering strength, the pushing interference element in the ECG signal is furthest restricted and the characteristics of the ECG signal are highlighted.

The invention discloses a music melody rhythm analysis and extraction method and device, and relates to the technical field of computers. The method includes: preprocessing the MIDI music file to obtain a target audio track; traversing all the notes in the target audio track to obtain the start time value and end time value of each note; identifying the root of the chord tone in the target audio track ;Process the polyphony in the target track into multiple single tones; splicing the root, multiple single tones and other notes according to the start time and end time of the note to obtain a complete melody rhythm, and identify the melody rhythm Each phrase of each phrase and the phrases in each phrase; the similarity analysis is performed on all the phrases, and the time value similarity of each phrase is obtained and the corresponding labels are marked. The method and device for analyzing and extracting music melody rhythm disclosed by the invention can realize the extraction and analysis of music rhythm, better excavate hidden information in rhythm structure, and better guide the research and development of computer music creation.

The invention provides a method for converting text into rap music and a device thereof, and belongs to the technical field of electronic digital data processing. The method comprises carrying out the character rhythm analysis for obtained to-be-converted text to obtain words and characters in the to-be-converted text, and endowing with sound attribute for each word and each character in the to-be-converted text, and converting each word and each character in the to-be-converted text to character audio frequency according with MIDI music rules through a preset character voice database and the sound attribute, obtaining to-be-played MIDI audio frequency, and synthesizing the to-be-played MIDI audio frequency and the character audio frequency to generate rap music, wherein the text can be output in the form of rap music for increasing the recreation of the text, thereby improving the experience of users.

The invention discloses a music rhythm analysis method based on big data, and relates to the field of computer technology. The technical solution includes the following steps: acquiring music data to be analyzed; extracting rhythm features in music segments; Reference music data for rhythm features; emotional expression analysis on reference music data; emotional classification processing for all reference music data according to emotional data; sorting of all emotional categories according to the number of reference music data in emotional categories; according to preset The range value intercepts the corresponding emotional categories from all sorted emotional categories; calculates the emotional application frequency of the intercepted emotional categories and the rhythm application frequency in the corresponding emotional categories; organizes the output into a chart, which can reduce music creation or music matching errors. When the situation occurs, it can improve the work efficiency of music creation or music matching, and enhance the role of music effects.