Body fat monitoring system and method employing mobile terminal

• US 20040002662A1
• Filed: 06/28/2002
• Published: 01/01/2004
• Est. Priority Date: 06/28/2002
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Hjelt, Kari, Ryhanen, Tapani, Naukkarinen, Santtu, Hyyrylainen, Jari, Nybergh, Kjell
• Granted Patent: US 7,103,407 B2
• Time in Patent Office: Days
• US Class Current: 600/547
• CPC Class Codes: A61B 2560/0468 Built-in electrodes
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/0008 Temperature signals
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/0537 Measuring body composition by impedance, e.g. tissue hydration or fat content
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/4866 Evaluating metabolism A61B5/083 takes precedence
• CPC Class Codes: A61B 5/4869 Determining body composition
• CPC Class Codes: A61B 5/4872 Body fat
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers

Abstract

A system and method measures a parameter of body fat using body fat monitoring circuitry provided with a mobile communications device or device cover. A mobile terminal device includes a housing supporting a display, a processor, and a user interface for facilitating user interaction with the mobile terminal device. Body fat monitoring circuitry of the mobile terminal device includes a tactile interface supported by one or both of the housing and a cover of the housing. The monitoring circuitry communicates monitoring signals to a portion of a user'"'"'s body via the tactile interface. The processor computes a resistance to the communication of the monitoring signals and computes the user'"'"'s body fat parameter using the computed resistance. An acceleration sensor may be included to provide various pedometer functions.

Claims

1. A mobile terminal device, comprising:

a housing supporting a display;

a processor;

a user interface for facilitating user interaction with the mobile terminal device; and

body fat monitoring circuitry comprising a tactile interface supported by one or both of the housing or a housing cover, the monitoring circuitry communicating monitoring signals to a portion of a user'"'"'s body via the tactile interface, the processor computing a parameter associated with the user'"'"'s body fat in response to the communication of the monitoring signals.

2. The device of claim 1, wherein the processor computes a resistance to the communication of the monitoring signals and computes the user'"'"'s body fat parameter using the computed resistance.

3. The device of claim 1, wherein the body fat parameter comprises percent body fat.

4. The device of claim 1, wherein the body fat parameter comprises one or both of fat mass and total body water.

5. The device of claim 1, wherein the tactile interface comprises a plurality of electrodes supported by one or both of the housing and housing cover.

6. The device of claim 1, wherein the tactile interface comprises a plurality of electrodes supported by a common surface of the housing of the housing cover.

7. The device of claim 1, wherein the tactile interface comprises a plurality of electrodes supported by two or more surfaces of the housing or housing cover.

8. The device of claim 1, wherein the monitoring signals produced by the monitoring circuitry comprise sinusoidal current or voltage signals.

9. The device of claim 1, wherein the monitoring signals produced by the monitoring circuitry comprise square wave current or voltage signals.

10. The device of claim 1, wherein the monitoring signals produced by the monitoring circuitry comprise a current or voltage signal having a frequency of about 50 kHz or greater.

11. The device of claim 1, wherein the monitoring signals produced by the monitoring circuitry comprise a current signal having an amperage less than about 1 mA.

12. The device of claim 1, wherein the monitoring circuitry maintains the monitoring signals at a substantially constant amperage or voltage.

13. The device of claim 1, wherein the user interface facilitates input of user information, the user information comprising one or more of gender, body weight, age, and height of the user, the processor using the user information to compute the parameter associated with the user'"'"'s body fat.

14. The device of claim 1, wherein the tactile interface comprises a plurality of electrodes for communicating the monitoring signals to and from the portion of the user'"'"'s body, at least some of the electrodes further communicating electrical signals between the processor and a device external to the mobile terminal device via an electrical conductor coupled between the at least some of the electrodes and the external device.

15. The device of claim 1, wherein the mobile terminal device comprises circuitry for communicating with a network and accessing one or more network services associated with user fitness or health.

16. A mobile terminal device, comprising:

a housing supporting a display;

a user interface for facilitating user interaction with the mobile terminal device;

an acceleration sensor;

body fat monitoring circuitry comprising a tactile interface supported by one or both of the housing and a housing cover, the monitoring circuitry communicating monitoring signals to a portion of a user'"'"'s body via the tactile interface; and

a processor, the processor computing a parameter associated with the user'"'"'s body fat in response to the communication of the monitoring signals and using an acceleration signal produced by the acceleration sensor to compute a parameter associated with walking or running by the user.

17. The device of claim 16, wherein the acceleration signal comprises a counter signal indicative of a number of steps taken by the user.

18. The device of claim 16, wherein the parameter associated with walking or running by the user comprises a distance traveled by the user.

19. The device of claim 16, wherein the parameter associated with walking or running by the user comprises calories consumed by the user during walking or running.

20. The device of claim 16, wherein the parameter associated with walking or running by the user comprises average speed or average steps per minute.

21. The device of claim 16, wherein the user interface facilitates input of user information, the user information comprising one or more of gender, body weight, age, height, and stride length of the user, the processor using the user information to compute the respective parameters associated with the user'"'"'s body fat and walking or running by the user.

22. The device of claim 16, wherein the processor computes a resistance to the communication of the monitoring signals and computes the user'"'"'s body fat parameter using the computed resistance.

23. The device of claim 16, wherein the body fat parameter comprises percent body fat.

24. The device of claim 16, wherein the tactile interface comprises a plurality of electrodes supported by one or both of the housing and housing cover.

25. The device of claim 16, wherein the user interface comprises a keypad and the tactile interface comprises a plurality of electrodes, further wherein some or all of the plurality of electrodes are integrated into one or more keys of the keypad.

26. The device of claim 16, wherein the tactile interface comprises a plurality of electrodes supported by a common surface of the housing or housing cover.

27. The device of claim 16, wherein the tactile interface comprises a plurality of electrodes supported by two or more surfaces of the housing or housing cover.

28. The device of claim 16, wherein the monitoring signals produced by the monitoring circuitry comprise sinusoidal or square wave current signals.

29. The device of claim 16, wherein the mobile terminal device comprises circuitry for communicating with a network and accessing one or more network services associated with user fitness or health.

30. A method of using a mobile terminal device for facilitating wireless communication and body fat monitoring, comprising:

providing the mobile terminal device having body fat monitoring circuitry, the body fat monitoring circuitry comprising a plurality of electrodes for contacting portions of a user'"'"'s hands;

transmitting monitoring signals between a first pair of the electrodes when in contact with the user'"'"'s hands;

detecting, in response to transmission of the monitoring signals, a resistance between a second pair of the electrodes; and

computing a parameter associated with the user'"'"'s body fat using the detected resistance.

31. The method of claim 30, further comprising receiving user information comprising one or more of gender, body weight, age, and height of the user, wherein computing the user'"'"'s body fat parameter comprises using the user information to compute the parameter associated with the user'"'"'s body fat.

32. The method of claim 30, wherein the first pair of electrodes are situated on the mobile terminal device to contact a distal portion of a palm of each of the user'"'"'s hands, and the second pair of electrodes are situated on the mobile terminal device to contact a proximal portion of the palm of each of the user'"'"'s hands.

33. The method of claim 30, wherein the first pair of electrodes are situated on the mobile terminal device to contact an index finger of each of the user'"'"'s hands, and the second pair of electrodes are situated on the mobile terminal device to contact a thumb of each of the user'"'"'s hands.

34. The method of claim 30, wherein the first pair of electrodes are situated on the mobile terminal device to contact a middle finger of each of the user'"'"'s hands, and the second pair of electrodes are situated on the mobile terminal device to contact an index finger of each of the user'"'"'s hands.

35. The method of claim 30, wherein the body fat parameter comprises percent body fat.

36. The method of claim 30, wherein the body fat parameter comprises percent body fat, and the method further comprises wirelessly communicating the percent body fat of the user to a remote data system and receiving a message concerning the user'"'"'s percent body fat from the remote data system.

37. The method of claim 30, further comprising communicating with a network and accessing one or more mobile network services associated with user fitness or health.

38. The method of claim 30, further comprising communicating electrical signals between the mobile terminal device and a device external to the mobile terminal device via an electrical conductor coupled between at least some of the electrodes and the external device.

39. The method of claim 30, wherein the mobile terminal device further comprises an acceleration sensor, the method further comprising computing a parameter associated with walking or running by the user using an acceleration signal produced by the acceleration sensor.

40. The method of claim 39, wherein the parameter associated with walking or running by the user comprises a distance traveled by the user.

41. The method of claim 39, wherein the parameter associated with walking or running by the user comprises calories consumed by the user during walking or running.

42. The method of claim 39, wherein the parameter associated with walking or running by the user comprises average speed or average steps per minute.

43. The method of claim 39, further comprising receiving user information, the user information comprising one or more of gender body weight, age, height, and stride length of the user, the method further comprising computing the respective parameters associated with the user'"'"'s body fat and walking or running by the user using the user information.

44. The method of claim 39, wherein the body fat parameter comprises percent body fat, and the method further comprises wirelessly communicating the percent body fat of the user and the parameter associated with walking or running to a remote data system, and receiving a message concerning one or both of the user'"'"'s percent body fat and a recommended walking or running regimen from the remote data system.

45. The method of claim 39, wherein the mobile terminal device is capable of over-the-air (OTA) communication with a network.

46. The method of claim 39, further comprising communicating with a mobile network and accessing one or more mobile network services associated with user fitness or health.

47. A portable cover, comprising:

a processor;

physiological conditions monitoring circuitry comprising a tactile interface supported by one or more surfaces of the cover, the monitoring circuitry communicating monitoring signals to a portion of a user'"'"'s body via the tactile interface, the processor computing a parameter associated with a user'"'"'s physiological conditions in response to communication of the monitoring signals; and

an interface for coupling the processor with the monitoring circuitry.

48. The cover of claim 47, wherein the parameter computed by the processor is associated with the user'"'"'s body fat.

49. The cover of claim 47, wherein the tactile interface comprises a plurality of electrodes.

50. The cover of claim 47, wherein the monitoring circuitry further comprises one or more accelerometers.

51. The cover of claim 47, further comprising a device interface configured to communicatively couple the processor of the portable cover to a mobile communications device.