US20080171922A1 - Method and apparatus for auto journaling of body states and providing derived physiological states utilizing physiological and/or contextual parameter - Google Patents

Method and apparatus for auto journaling of body states and providing derived physiological states utilizing physiological and/or contextual parameter Download PDF

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US20080171922A1
US20080171922A1 US11/930,100 US93010007A US2008171922A1 US 20080171922 A1 US20080171922 A1 US 20080171922A1 US 93010007 A US93010007 A US 93010007A US 2008171922 A1 US2008171922 A1 US 2008171922A1
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sensor
data
user
individual
information
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US11/930,100
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Eric Teller
Jonathan Farringdon
David Andre
Christopher Pacione
John Stivoric
Scott Safier
Raymond Pelletier
Suresh Vishnubhatla
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Jb Ip Acquisition LLC
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Eric Teller
Jonathan Farringdon
David Andre
Christopher Pacione
John Stivoric
Scott Safier
Raymond Pelletier
Suresh Vishnubhatla
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Priority to US41716302P priority Critical
Priority to US10/682,293 priority patent/US8157731B2/en
Application filed by Eric Teller, Jonathan Farringdon, David Andre, Christopher Pacione, John Stivoric, Scott Safier, Raymond Pelletier, Suresh Vishnubhatla filed Critical Eric Teller
Priority to US11/930,100 priority patent/US20080171922A1/en
Publication of US20080171922A1 publication Critical patent/US20080171922A1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32093978&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20080171922(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Assigned to JB IP ACQUISITION LLC reassignment JB IP ACQUISITION LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALIPHCOM, LLC, BODYMEDIA, INC.
Assigned to J FITNESS LLC reassignment J FITNESS LLC UCC FINANCING STATEMENT Assignors: JAWBONE HEALTH HUB, INC.
Assigned to J FITNESS LLC reassignment J FITNESS LLC UCC FINANCING STATEMENT Assignors: JB IP ACQUISITION, LLC
Assigned to J FITNESS LLC reassignment J FITNESS LLC SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JB IP ACQUISITION, LLC
Assigned to ALIPHCOM LLC reassignment ALIPHCOM LLC RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BLACKROCK ADVISORS, LLC
Assigned to J FITNESS LLC reassignment J FITNESS LLC RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: JAWBONE HEALTH HUB, INC., JB IP ACQUISITION, LLC
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Abstract

Various methods and apparatuses for measuring a state parameter of an individual using signals based on one or more sensors are disclosed. In one embodiment, a first set of signals is used in a first function to determine how a second set of signals is used in one or more second functions to predict the state parameter. In another embodiment, first and second functions are used where the state parameter or an indicator of the state parameter may be obtained from a relationship between the first function and the second function. The state parameter may, for example, include calories consumed or calories burned by the individual. Various methods for making such apparatuses are also disclosed.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation of co-pending U.S. patent application Ser. No. 10/682,293 filed Oct. 9, 2003, which claims the benefit of U.S. Provisional Application No. 60/417,163 filed on Oct. 9, 2002.
  • BACKGROUND
  • 1. Field
  • The present invention relates to methods and apparatuses for measuring a state parameter of an individual using signals based on one or more sensors. The present invention also relates to various methods for making such apparatuses.
  • 2. Description of the Related Art
  • Research has shown that a large number of the top health problems in society are either caused in whole or in part by an unhealthy lifestyle. More and more, our society requires people to lead fast paced, achievement oriented lifestyles that often result in poor eating habits, high stress levels, lack of exercise, poor sleep habits and the inability to find the time to center the mind and relax. Recognizing this fact, people are becoming increasingly interested in establishing a healthier lifestyle.
  • Traditional medicine, embodied in the form of an HMO or similar organizations, does not have the time, the training, or the reimbursement mechanism to address the needs of those individuals interested in a healthier lifestyle. There have been several attempts to meet the needs of these individuals, including a perfusion of fitness programs and exercise equipment, dietary plans, self help books, alternative therapies, and most recently, a plethora of health information web sites on the Internet. Each of these attempts are targeted to empower the individual to take charge and get healthy. Each of these attempts, however, addresses only part of the needs of individuals seeking a healthier lifestyle and ignores many of the real barriers that most individuals face when trying to adopt a healthier lifestyle. These barriers include the fact that the individual is often left to himself or herself to find motivation, to implement a plan for achieving a healthier lifestyle, to monitor progress, and to brainstorm solutions when problems arise; the fact that existing programs are directed to only certain aspects of a healthier lifestyle, and rarely come as a complete package; and the fact that recommendations are often not targeted to the unique characteristics of the individual or his life circumstances.
  • SUMMARY
  • The present invention relates to an apparatus for measuring a state parameter of an individual including a processor, at least two sensors in electronic communication with the processor, at least one of the sensors being a physiological sensor, and a memory for storing software executable by the processor. The software includes instructions for collecting a plurality of sensor signals from the at least two sensors, and utilizing a first set of signals based on one or more of the plurality of sensor signals in a first function, the first function determining how a second set of signals based on one or more of the plurality of sensor signals is utilized in one or more second functions, each of the one or more second functions having an output, wherein one or more of the outputs are used to predict the state parameter of the individual.
  • The present invention also relates to a method of measuring a state parameter of an individual, including collecting a plurality of sensor signals from at least two sensors in electronic communication with a sensor device worn on a body of the individual, at least one of the sensors being a physiological sensor, and utilizing a first set of signals based on one or more of the plurality of sensor signals in a first function, the first function determining how a second set of signals based on one or more of the plurality of sensor signals is utilized in one or more second functions, each of the one or more second functions having an output, wherein one or more of the outputs are used to predict the state parameter of the individual.
  • In one embodiment of either the apparatus or method, the first function recognizes one or more contexts based on the first set of signals and one or more of the second functions is chosen based on the one or more recognized contexts. The outputs of the chosen second functions are used to predict the state parameter of the individual. In another embodiment, the first function recognizes each of a plurality of contexts based on the first set of signals and each of the one or more second functions corresponds to one of the contexts. The first function assigns a weight to each of the one or more second functions based on a recognition probability associated with the corresponding context, and the outputs of the one or more second functions and the weights are used to predict the state parameter of the individual. The outputs may be combined in a post processing step to predict the state parameter. In addition, in either the apparatus or the method, the state parameter may be caloric expenditure the second functions may be regression algorithms, the contexts may comprise rest and active and, the first function may comprise a naïve Bayesian classifier. Where the state parameter is caloric expenditure, caloric consumption data for the individual may be generated and information based on the caloric expenditure data and the caloric consumption data may be displayed, such as energy balance data, rate of weight loss or gain, or information relating to one or more goals of the individual.
  • In one embodiment of the apparatus, the processor and the memory are included in a wearable sensor device. In another embodiment, the apparatus includes a wearable sensor device, the processor and the memory being included in a computing device located separately from the sensor device, wherein the sensor signals are transmitted from the sensor device to the computing device.
  • The present invention also relates to a method of making software for an apparatus for measuring a state parameter of an individual including providing a first sensor device, the first sensor device receiving a plurality of signals from at least two sensors, using the first sensor device to create a first function and one or more second functions, each of the one or more second functions having an output, the first function utilizing a first set of signals based on one or more of the plurality of sensor signals to determine how a second set of signals based on one or more of the plurality of sensor signals is utilized in the one or more second functions, wherein one or more of the outputs are used to predict the state parameter of the individual. The method further includes creating the software including instructions for: (i) receiving a second plurality of signals collected by a second sensor device substantially structurally identical to the first sensor device for a period of time; (ii) utilizing a third set of signals based on one or more of the second plurality of sensor signals in the first function to determine how a fourth set of signals based on one or more of the second plurality of sensor signals is utilized in the one or more second functions; and (iii) utilizing the one or more outputs produced by the one or more second functions from the fourth set of signals to predict the state parameter of the individual. In the method, the step of using the sensor device to create the first function and the one or more second functions may include gathering a first set of the plurality of signals under conditions where the state parameter is present, contemporaneously gathering gold standard data relating to the state parameter, and using one or more machine learning techniques to generate the first function and the one or more second functions from the first set of the plurality of signals and the gold standard data. In addition, A the first function may recognize one or more contexts based on the first set of signals and one or more of the second functions may be chosen based on the one or more recognized contexts, wherein the outputs of the chosen second functions are used to predict the state parameter of the individual. Alternatively, the first function may recognize each of a plurality of contexts based on the first set of signals and each of the one or more second functions may correspond to one of the contexts, wherein the first function assigns a weight to each of the one or more second functions based on a recognition probability associated with the corresponding context, and wherein the outputs of the one or more second functions and the weights are used to predict the state parameter of the individual.
  • One specific embodiment of the present invention relates to a method of measuring energy expenditure of an individual including collecting a plurality of sensor signals from at least two of a body motion sensor, a heat flux sensor, a skin conductance sensor, and a skin temperature sensor, each in electronic communication with a sensor device worn on a body of the individual, and utilizing a first set of signals based on one or more of the plurality of sensor signals in one or more functions to predict the energy expenditure of the individual. The utilizing step may include utilizing the first set of signals in a first function, the first function determining how a second set of signals based on one or more of the plurality of sensor signals is utilized in one or more second functions, each of the one or more second functions having an output, wherein one or more of the outputs are used to predict the energy expenditure of the individual. In addition, the collecting step may include collecting the plurality of sensor signals from a body motion sensor, a heat flux sensor, and a skin conductance sensor, the second set of signals comprising a heat flux high gain average variance (HFvar), a vector sum of transverse and longitudinal accelerometer SADs (VSAD), and a galvanic skin response low gain (GSR), wherein the second functions have the form of A*VSAD+B*HF+C*GSR+D*BMR+E, wherein A, B, C, D and E are constants and BMR is a basal metabolic rate for the individual.
  • The present invention also relates to an apparatus for measuring energy expenditure of an individual including a processor, at least two of a body motion sensor, a heat flux sensor, a skin conductance sensor, and a skin temperature sensor in electronic communication with the processor, and a memory storing software executable by the processor. The software includes instructions for collecting a plurality of sensor signals from the at least two of a body motion sensor, a heat flux sensor, a skin conductance sensor, and a skin temperature sensor, and utilizing a first set of signals based on one or more of the plurality of sensor signals in one or more functions to predict the energy expenditure of the individual. The utilizing instruction may include utilizing the first set of signals in a first function, the first function determining how a second set of signals based on one or more of the plurality of sensor signals is utilized in one or more second functions, each of the one or more second functions having an output, wherein one or more of the outputs are used to predict the energy expenditure of the individual. The collecting instruction may include collecting the plurality of sensor signals from a body motion sensor, a heat flux sensor, and a skin conductance sensor, the second set of signals comprising a heat flux high gain average variance (HFvar), a vector sum of transverse and longitudinal accelerometer SADs (VSAD), and a galvanic skin response low gain (GSR), wherein the second functions have the form of A*VSAD+B*HF+C*GSR+D*BMR+E, wherein A, B, C, D and E are constants and BMR is a basal metabolic rate for the individual.
  • The present invention also relates to a method of making software for an apparatus for measuring energy expenditure of an individual, including providing a first sensor device, the first sensor device receiving a plurality of signals from at least two of a body motion sensor, a heat flux sensor, a skin conductance sensor, and a skin temperature sensor, and using the first sensor device to create one or more functions that predict the energy expenditure of the individual using a first set of signals based on one or more of the plurality of sensor signals. The method further includes creating the software including instructions for: (i) receiving a second plurality of signals collected by a second sensor device substantially structurally identical to the first sensor device for a period of time, the second sensor device receiving the second plurality of signals from at least two of a body motion sensor, a heat flux sensor, a skin conductance sensor, and a skin temperature sensor; and (ii) utilizing a second set of signals based on one or more of the second plurality of sensor signals in the one or more functions to predict the energy expenditure of the individual. The step of using the sensor device to create the one or more functions may include gathering a first set of the plurality of signals under conditions where energy expenditure data for the individual is present, contemporaneously gathering gold standard data relating to the energy expenditure data for the individual, and using one or more machine learning techniques to generate the one or more functions from the first set of the plurality of signals and the gold standard data. In addition, the utilizing instruction may include utilizing the second set of signals in a first function, the first function determining how a third set of signals based on one or more of the second plurality of sensor signals is utilized in one or more second functions, each of the one or more second functions having an output; wherein one or more of the outputs are used to predict the energy expenditure of the individual.
  • In yet another embodiment, the present invention relates to an apparatus for automatically measuring a first state parameter of an individual, including a processor, one or more sensors for generating one or more signals over a period of time, the processor receiving the one or more signals, and a memory storing software executable by the processor. The software includes instructions for inputting one or more signal channels based on the one or more signals into a first function having a first output that predicts one or more second state parameters of the individual and either the first state parameter or an indicator of the first state parameter, wherein the first state parameter may be obtained from the indicator based on a first relationship between the first state parameter and the indicator, inputting the one or more signal channels into a second function having a second output that predicts the one or more second state parameters but not the first state parameter or the indicator of the first state parameter, and obtaining either the first state parameter or the indicator from the first and second outputs based on a second relationship between the first function and the second function, and, if the indicator is obtained, obtaining the first state parameter from the indicator based on the first relationship.
  • The present invention also relates to a method of automatically measuring a first state parameter of an individual, including collecting for a period of time one or more signals from one or more sensors in electronic communication with a sensor device worn on a body of the individual, inputting one or more signal channels based on the one or more signals into a first function having a first output that predicts one or more second state parameters of the individual and either the first state parameter or an indicator of the first state parameter, wherein the first state parameter may be obtained from the indicator based on a first relationship between the first state parameter and the indicator, inputting the one or more signal channels into a second function having a second output that predicts the one or more second state parameters but not the first state parameter or the indicator of the first state parameter, and obtaining either the first state parameter or the indicator from the first and second outputs based on a second relationship between the first function and the second function, and, if the indicator is obtained, obtaining the first state parameter from the indicator based on the first relationship.
  • In either the method or the apparatus, the first state parameter may be a number of calories consumed by the individual during the period of time. In such an embodiment, the indicator may include a first effect on the body of food consumed, and in particular, the indicator may be the thermic effect of food. In the case of thermic effect of food, the first output may comprise total energy expenditure, wherein the one or more second state parameters include basal metabolic rate, activity energy expenditure and adaptive thermogenesis, and the first state parameter may be obtained from the indicator by dividing the indicator by 0.1. In one specific embodiment, the software further includes instructions for generating caloric expenditure data for the individual for the period of time from one or more of the one or more signal channels and displaying information based on the caloric expenditure data and the number of calories consumed by the individual. The apparatus may include a display, such as part of a separate I/O device, for displaying the information based on the caloric expenditure data and the number of calories consumed by the individual.
  • In yet another embodiment, the present invention relates to a method of making software for an apparatus for automatically measuring a first state parameter of an individual. The method includes providing a first sensor device, the first sensor device receiving one or more signals from one or more sensors, using the first sensor device to create a first function having a first output that predicts one or more second state parameters of the individual and either the first state parameter or an indicator of the first state parameter, wherein the first state parameter may be obtained from the indicator based on a first relationship between the first state parameter and the indicator, the first function taking as inputs one or more signal channels based on the one or more signals, and using the first sensor device to create a second function having a second output that predicts the one or more second state parameters but not the first state parameter or the indicator of the first state parameter, the second function taking as inputs the one or more signal channels. The method further includes creating the software including instructions for: (i) receiving a second one or more signals collected by a second sensor device substantially structurally identical to the first sensor device for a period of time; (ii) inputting a second one or more signal channels based on the second one or more signals into the first function and the second function for generating the first output and the second output, respectively; and (iii) obtaining either the first state parameter or the indicator from the first and second outputs generated in the inputting step based on a second relationship between the first function and the second function, and, if the indicator is obtained, obtaining the first state parameter from the indicator based on the first relationship. The step of using the sensor device to create the first function may include gathering a first set of the one or more signals under conditions where the second state parameters and either the first state parameter or the indicator are present, contemporaneously gathering gold standard data relating to the second state parameters and either the first state parameter or the indicator, and using one or more machine learning techniques to generate the first function from the first set of one or more signals and the gold standard data, and the step of using the sensor device to create the second function may include gathering a second set of the one or more signals under conditions where neither the first state parameter nor the indicator are present, contemporaneously gathering second gold standard data relating to the second state parameters but not the first state parameter or the indicator, and using one or more machine learning techniques to generate the second function from the second set of one or more signals and the second gold standard data.
  • In still another alternate embodiment, the present invention relates to a method of measuring caloric consumption of an individual for a time period, including determining a weight differential for the individual between a beginning of the time period and an end of the time period, multiplying the weight differential by a constant, such as 3500, to obtain a caloric differential, measuring a caloric expenditure of the individual for the time period using a wearable sensor device having one or more sensors, and determining the caloric consumption from the caloric differential and the caloric expenditure. The step of measuring the caloric expenditure may comprises collecting a plurality of sensor signals from at least two sensors in electronic communication with the sensor device, at least one of the sensors being a physiological sensor, and utilizing a first set of signals based on one or more of the plurality of sensor signals in a first function, the first function determining how a second set of signals based on one or more of the plurality of sensor signals is utilized in one or more second functions, each of the one or more second functions having an output, wherein one or more of the outputs are used to predict the caloric expenditure.
  • BRIEF DESCRIPTION OF THE FIGURES
  • Further features and advantages of th