Abstract: A method and medical monitoring device for determining the occurrence of a premature ventricular contraction that includes sensing a cardiac signal and determining R-waves in response to the sensed cardiac signal, determining RR intervals between the determined R-waves, determining whether a first interval criteria is satisfied in response to the determined intervals, determining a correlation between the determined R-waves, determining whether a first correlation criteria is satisfied in response to the determined correlation, and determining the premature ventricular contraction is occurring in response to the first interval criteria and the first correlation criteria being satisfied.

Abstract: A mobile user device, configured to communicate over a wireless medium and a corresponding computer-implemented method is described. The mobile user device in one embodiment may comprise a near field communication interface for at least sending response information to a receiver in one or more near field transmissions; and a communication control module, connected with said near field communication interface. To improve the security of the mobile user device, the communication control module is configured to control whether said response information is sent by said near field communication interface in dependence of at least a communication safety parameter.

Abstract: Methods and apparatuses for displaying private data are disclosed. In one example, data is identified as a private data type or a public data type. The data is output on an arm wearable device first display responsive to identifying the data as the private data type, the first display arranged to display a private data. The data is output on an arm wearable device second display responsive to identifying the data as the public data type, the second display arranged to display a public data.

Abstract: An authentication server, an application device and a probability-based user authentication system and method are disclosed. To simplify authentication while keeping a high level of security, the authentication server comprises at least an authentication probability evaluation module for determining a probability of requestor identification. The authentication server is configured to at least receive an authentication request from an authenticator, said authentication request comprises at least user identification data. The authentication probability evaluation module is configured upon reception of said user identification data to receive user behavior information, corresponding to the received user identification data from a user information database; and to determine a user probability value by comparing at least said user behavior information with authenticator application data. The requestor is authenticated in dependence of said determined user probability value.

Abstract: A wearable user device is provided, which can be donned and doffed by a user, and which is configured for use in a user authentication system. To enhance the security of a user authentication, the wearable user device comprises a detector device to detect a donned or doffed condition of said wearable user device; and an alert processing module, connected with said detector device. The alert processing module is configured to determine whether said wearable user device is doffed forcefully, and if said wearable user device is doffed forcefully, to transmit an authentication exception corresponding to a forceful doffed condition to an authentication server.

Abstract: A cardiac monitoring device for determining the occurrence of a sick sinus syndrome condition of a patient that includes a plurality of electrodes to sense a cardiac signal, a sensing module electrically coupled to the plurality of electrodes having circuitry positioned therein to receive the sensed cardiac signal, and a processor coupled to the sensing module and configured to determine an RR interval variability during an RR interval variability session in response to the sensed cardiac signal, determine whether a P-wave occurs during the RR interval variability session, determine whether a sick sinus indicator is satisfied in response to a P-wave occurring, increment a sick sinus count in response to the sick sinus indicator being satisfied, determine whether a sick sinus burden is satisfied in response to the sick sinus count being incremented, and determine the occurrence of sick sinus syndrome in response to the sick sinus burden being satisfied.

Abstract: A method and implantable medical device for determining an atrial arrhythmia event that includes sensing a cardiac signal, determining an atrial arrhythmia score for identifying the arrhythmia event in response to the sensed cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window having a first portion and a second portion, determining signal characteristics of the sensed cardiac signal within the first portion and within the second portion, determining whether the sensed cardiac signal within the first portion and within the second portion corresponds to a P-wave in response to the determined signal characteristics, determining whether a signal to noise ratio of the sensed cardiac signal within the first portion and the second portion of the sensing window is satisfied, determining whether to update the arrhythmia score in response to the determined P-wave and the determined signal to noise ratio, and determining whether to delivery an arrhythmia therapy in r

Abstract: A method and implantable medical device for determining a flutter event in response to a cardiac signal that includes sensing the cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window having a first portion and a second portion. A first derivative signal and a second derivative signal are determined in response to the sensed cardiac signal within the first portion and the second portion of the sensing window, and a sum of amplitudes of the second derivative signal within one or both of the first portion and the second portion of the sensing window is determined, and the flutter event is determined in response to the determined sum of amplitudes.

Abstract: A method and medical device for determining a P-wave of a cardiac signal that includes sensing the cardiac signal, determining a P-wave sensing window in response to the sensed cardiac signal, the P-wave sensing window having a first portion and a second portion, determining signal characteristics of the sensed cardiac signal within the first portion and within the second portion, comparing the determined signal characteristics, and determining the P-wave in response to the comparing.

Abstract: An implantable medical device and method for determining an atrial arrhythmia event that includes a cardiac sensing device comprising a housing having circuitry positioned therein, a plurality of electrodes electrically coupled to the circuitry to sense a cardiac signal, and a processor configured to generate an initial detection of an atrial arrhythmia event in response to an atrial arrhythmia threshold, determine whether a P-wave occurs during the initial detection, determine an adaptive threshold in response to the P-wave being detected, adjust the atrial arrhythmia threshold in response to the adaptive threshold, and generate a subsequent initial detection of an atrial arrhythmia event using the adjusted atrial arrhythmia threshold.

Abstract: A method and implantable medical device for determining noise in response to a cardiac signal that includes sensing the cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window comprising a first portion and a second portion, determining a first derivative signal in response to the sensed cardiac signal within only one of the first portion and the second portion of the sensing window, determining a second derivative signal in response to the sensed cardiac signal within the one of the first portion and the second portion of the sensing window, determining whether an amplitude of the second derivative signal satisfies an amplitude threshold, and determining noise in response to the amplitude of the second derivative signal satisfying the amplitude threshold.

Abstract: Methods and/or devices are disclosed herein for monitoring cardiac impedance signal and delivering therapy to a patient's heart based upon the monitored cardiac impedance.

Abstract: Apparatus having corresponding methods and computer-readable media comprise: a processor configured to execute one or more applications associated with a plurality of identities; and one or more transceivers configured to transceive first wireless signals responsive to a first enablement signal, and to transceive second wireless signals responsive to a second enablement signal; wherein the first wireless signals represent a first transceiver identifier associated with a first one of the identities; wherein the second wireless signals represent a second transceiver identifier associated with a second one of the identities; wherein the processor is further configured to assert the first enablement signal responsive to occurrence of one or more first events; and wherein the processor is further configured to assert the second enablement signal responsive to occurrence of one or more second events.

Abstract: Provided is a method, system and/or apparatus for determining prospective heart failure event risk. Acquired from a device memory are a heart failure patient's current and preceding risk assessment periods. Counting detected data observations in the current risk assessment period for a current risk assessment total amount and counting detected data observations in the preceding risk assessment period for a preceding risk assessment period total amount. Associating the current risk assessment and preceding risk assessment total amounts with a lookup table to acquire prospective risk of heart failure (HF) event for the preceding risk assessment period and the current risk assessment period. Employing weighted sums of the prospective risk of the HF event for the preceding risk assessment period and the current risk assessment period to calculate a weighted prospective risk of the HF event for a patient. Displaying on a graphical user interface the weighted prospective risk of the HF event for the patient.

Abstract: Computer-readable media embodying instructions executable by a computer in a wireless device to perform functions comprises: receiving first link quality data for a wireless link from a wearable wireless audio device connected to the wireless device by the wireless link; receiving second link quality data for the wireless link from a radio-frequency (RF) of the wireless device; determining a quality of the wireless link based on the first link quality data and the second link quality data; and causing a user-perceivable indication of the quality of the wireless link to be generated by at least one of i) the wearable wireless audio device, and ii) the wireless device.

Abstract: In one embodiment, a method includes determining when a relay arrangement is available to pair with an endpoint. The relay arrangement is arranged to wirelessly communicate with the endpoint and to communicate over a wired network. The method also includes authenticating the endpoint with respect to the relay arrangement when the relay arrangement is available to pair with the endpoint, and pairing the endpoint with the relay arrangement if the endpoint is authenticated with respect to the relay arrangement. Pairing the endpoint with the relay arrangement includes the endpoint and the relay arrangement engaging in wireless communications, as well as the relay arrangement engaging in wired communications over the wired network.

Abstract: Wearable electronic communication devices having corresponding methods and computer-readable media comprise: an accelerometer; a don/doff detector; a transmitter; a processor configured to i) determine whether the wearable electronic communication device has experienced a fall based on information produced by the accelerometer, ii) determine whether the wearable electronic communication device was being worn during the fall based on information produced by the don/doff detector, and iii) cause the transmitter to transmit a message from the wearable electronic communication device responsive to the processor determining both i) the wearable electronic communication device has experienced a fall and ii) the wearable electronic communication device was being worn during the fall.

Abstract: A system for navigating includes an interface operable to receive position information of a first modality. The position information of the first modality is associated with a navigation unit. The interface is further operable to receive position information of a second modality. The position information of the second modality is associated with the navigation unit. The system also includes a processor coupled to the interface and operable to identify a destination. The system is further operable to navigate to the destination based on the position information of the first and second modalities by switching between the first modality and the second modality.

Abstract: Apparatus having corresponding methods and computer-readable media comprise: an earpiece; an acoustic transducer configured to generate an acoustic wave external to the earpiece; an acoustic sensor; a speaker disposed internal to the earpiece; and a processor configured to cause the headset to provide an alert responsive to the acoustic sensor receiving a reflection of the acoustic wave.

Abstract: Methods and apparatuses for headsets are disclosed. In one example, a headset includes a processor, a communications interface, a user interface, and a speaker. The headset includes a microphone array including two or more microphones arranged to detect sound and output two or more microphone output signals. The headset further includes a memory storing an application executable by the processor configured to operate the headset in a first mode utilizing a first set of signal processing parameters to process the two or more microphone output signals and operate the headset in a second mode utilizing a second set of signal processing parameters to process the two or more microphone output signals.