Multi-modal sleep system

Abstract

Systems and methods are provided for a multi-modal sleep system comprising a data processor for operating in a plurality of operating modes. The data processor may detect at least one sensor providing data to the data processor and determine a sensor type associated with each of the at least one sensor. The data processor may select a mode of operation based on the determined sensor type of the detected at least one sensor and of each of the at least one sensor. A first of the plurality of operating modes may be selected in response to determining that the at least one detected sensor includes a first sensor type or combination of sensor types. The data processor may be configured to receive data from the at least one detected sensor and process the received data according to the selected mode of operation to output a characterization of a user's sleep.

1 . A multi-modal sleep monitoring system, comprising:
 a data processor configured to operate in a plurality of operating modes, the data processor configured to:
 detect at least one sensor providing data to the data processor; 
 determine a sensor type associated with each of the at least one sensor; 
 select a mode of operation based on the determined sensor type of the detected at least one sensor, wherein (a) a first of the plurality of operating modes is selected in response to determining that the at least one detected sensor includes a first sensor type or combination of sensor types, and (b) a second of the plurality of operating modes is selected in response to determining that the at least one detected sensor includes a second sensor type or combination of sensor types; 
 receive data from the at least one detected sensor; and 
 process the received data according to the selected mode of operation to output a characterization of a user's sleep, 
 wherein the data processor is configured with the plurality of operating modes to, dependent a selected mode of the plurality of operating modes, determine one or more sleep stages based on (a) an analysis of an electrical signal from electrodes by itself, and (b) an analysis of an electrical signal from electrodes in conjunction with data output by an accelerometer. 
   
     
     
         2 . The multi-modal sleep monitoring system of  claim 1  wherein the data processor is configured to receive (i) a raw electrical signal from the electrodes, (ii) movement data, or both (i) and (ii), depending on a selected mode of operation of the plurality of operating modes. 
     
     
         3 . The multi-modal sleep monitoring system of  claim 2  wherein the raw electrical signal includes information indicative of one or more of EEG, muscle tone, eye movement and galvanic skin response. 
     
     
         4 . The multi-modal sleep monitoring system of  claim 1  wherein the data processor is further configured to generate a sleep quality estimate based on movement data tracked with the data processor. 
     
     
         5 . The multi-modal sleep monitoring system of  claim 1  wherein the system is configured to depict physical movements experienced by a user from stored movement data. 
     
     
         6 . The multi-modal sleep monitoring system of  claim 1  wherein an application for a mobile device configures the mobile device to carry out at least a portion of an analysis of an electrical signal from electrodes. 
     
     
         7 . The multi-modal sleep monitoring system of  claim 6  wherein the data processor is further configured to wirelessly communicate with the mobile device. 
     
     
         8 . The multi-modal sleep monitoring system of  claim 7  wherein mobile device is configured to present to a user the determined one or more sleep stages and/or duration of the determined one or more sleep stages. 
     
     
         9 . The multi-modal sleep monitoring system of  claim 1  further comprising a base station configured to communicate with the data processor, wherein the base station is configured to carry out at least a portion of an analysis of an electrical signal from electrodes. 
     
     
         10 . The multi-modal sleep monitoring system of  claim 9  wherein base station is configured to present to a user the determined one or more sleep stages and/or duration of the determined one or more sleep stages. 
     
     
         11 . The multi-modal sleep monitoring system of  claim 1  further comprising an additional sensor, wherein the at least one sensor and the additional sensor comprise electrodes and an accelerometer. 
     
     
         12 . The multi-modal sleep monitoring system of  claim 1  wherein the data processor is configured with an LED/photodiode pair for generating a photoplethysmographic signal. 
     
     
         13 . The multi-modal sleep monitoring system of  claim 12  wherein the data processor is configured to determine heart rate, heart rate variability and/or respiration rate from the photoplethysmographic signal, and wherein the determined one or more sleep stages are further based on one or more of the heart rate, heart rate variability and/or respiration rate. 
     
     
         14 . The multi-modal sleep monitoring system of  claim 1  wherein the data processor is further configured to forward received data to a remote server via a wired or wireless communications connection. 
     
     
         15 . The multi-modal sleep monitoring system of  claim 1  wherein the data processor is configured with separate processing modules for each of (a) the electrical signal from the electrodes, and (b) movement data output by the accelerometer. 
     
     
         16 . The multi-modal sleep monitoring system of  claim 1  wherein the data processor is configured with an intertwined processing module for (a) a first data set from the electrical signal from the electrodes, and (b) a second data set of movement data output by the accelerometer,
 wherein the intertwined processing module uses one of the first data set and the second data set to adjust the other one of the first data set and the second data set. 
 
     
     
         17 . The multi-modal sleep monitoring system of  claim 1  further comprising an accelerometer, wherein a mode of the plurality of operating modes operates to process data output by the accelerometer to weight a sleep condition analysis otherwise executed on data output by a sensor of a different type from the accelerometer. 
     
     
         18 . The multi-modal sleep monitoring system of  claim 17  wherein the sensor of a different type is an electrode sensor. 
     
     
         19 . The multi-modal sleep monitoring system of  claim 1  wherein system comprises a built-in accelerometer and conductive electrodes configured to be in direct contact with skin of a user in a forehead region of the user. 
     
     
         20 . The multi-modal sleep monitoring system of  claim 19  wherein the data processor comprises the built-in accelerometer and is configured for selective coupling to a wristband or a headband, and wherein the headband comprises the conductive electrodes.