Biometric sensing and processing apparatus for mobile gaming, education, and wellness applications

A system for estimating emotional state of a user for display on a mobile device, said apparatus comprising:

• (a) a housing configured for retention of a finger of a user;
• (b) a sensor circuit retained in said housing;
• (c) said sensor circuit comprising a plurality of sensors configured for skin contact with a portion of the finger of the user;
• (d) said plurality of sensors comprising electrodermal response (EDR), photoplethysmograph (PPG), temperature, and acceleration sensors;
• (e) said sensor circuit comprising a communications interface configured for communicating data from said sensors to a mobile device;
• (f) said sensor circuit comprising a processor and programming executable on the processor for receiving input data from said sensors, processing said input data, and outputting processed data to the mobile device through said communications interface;
• and
• (g) an application program configured for execution on a processor of a mobile device having a display and user inputs and which is configured to receive said processed data;
• (h) said application program configured for communicating with said sensor circuit processor, post-processing said processed data, and displaying said post-processed data on said display as biofeedback data;
• and
• (i) wherein said application program further performs motion artifact removal on EDR and PPG signals in response to acceleration sensed as triaxial motion by said acceleration sensors in said sensor circuit configured for retention on the finger of the user for mediating motion effects which interfere with physiological signal measurements.

A system for estimating emotional state of a user for display on a mobile device, said apparatus comprising:

• (a) a mobile device having a processor, a display, and a user interface;
• (b) a sensor array configured for communication with said mobile device;
• (c) a housing of said sensor array configured for retention of a finger of a user;
• (d) a sensor circuit retained in said housing;
• (e) said sensor circuit comprising a plurality of sensors configured for skin contact with a portion of the finger of the user;
• (f) said plurality of sensors comprising electrodermal response (EDR), photoplethysmograph (PPG), temperature, and acceleration sensors, and wherein motion effects which interfere with physiological signal measurements of EDR and PPG captured at this finger sensing location of a user are mediated in response to utilizing acceleration data to compensate for any movement which arises at the finger location;
• (g) said sensor circuit comprising a communications interface configured for communicating data from said sensors to the mobile device;
• (h) said sensor circuit comprising a processor and programming executable on said processor for receiving input data from said sensors, processing said input data, and outputting processed data to said mobile device through said communications interface;
• (i) said mobile device having a communications interface configured for communication of data with said sensor circuit;
• and
• (j) an application program configured for execution on the processor of said mobile device;
• (k) said application program configured for communicating with said sensor circuit processor, post-processing said processed data, and displaying said post-processed data on said display as biofeedback data.

A system for displaying good stress versus bad stress on a mobile device in response to biofeedback signals received from an sensor array, said system comprising:

• (a) a sensor array;
• (b) a housing for said sensor array which is configured for insertion and retention of a finger of a user;
• (c) a sensor circuit retained in said housing;
• (d) said sensor circuit comprising a plurality of sensors configured for skin contact with a portion of the finger of the user;
• (e) said plurality of sensors comprising electrodermal response (EDR), photoplethysmograph (PPG), and acceleration sensors;
• (f) said sensor circuit comprising a communications interface configured for communicating said data from said sensors to a mobile device;
• (g) said sensor circuit comprising a processor and programming executable on the processor for receiving input data from said sensors, processing said input data, and outputting processed data on to the mobile device through said communications interface;
• and
• (h) an application program configured for execution on a processor of a mobile device having a display and user inputs configured to receive said processed data;
• (i) said application program configured for communicating with said sensor circuit processor, post-processing said processed data, performing motion artifact removal on EDR and PPG signals in response to accelerations sensed by said acceleration sensor, and combining EDR and PPG signals using a weighted average to create an overall emotional state estimation, and determining and displaying good stress versus bad stress for the user;
• and
• (j) wherein said application program is configured for processing said EDR and PPG signals in response to acceleration sensed as triaxial motion by said acceleration sensors in said sensor circuit configured for retention on the finger of the user for mediating motion effects which interfere with physiological signal measurements.