Portable electronic device and method for controlling operation thereof taking into account which limb possesses the electronic device

1. A portable electronic device comprising:

a detection mechanism operable to detect one or more characteristics relating to how a user handles the portable electronic device; and

a processor operably coupled to the detection mechanism and operable in accordance with stored operating instructions to:

determine a reference position from one or more positions of the portable electronic device, wherein the portable electronic device in the reference position is at rest and possessed by at least one limb of the user;

determine, based on a comparison of the reference position to at least one of the one or more characteristics detected by the detection mechanism based on an updated position of the portable electronic device that is different than the reference position, a particular limb of the user that possesses the portable electronic device;

responsive to determining the particular limb of the user that possesses the portable electronic device, determine, based on the at least one of the one or more characteristics, a positioning of the portable electronic device on the particular limb of the user that possesses the portable electronic device, wherein the positioning comprises at least one of a location or an orientation of the portable electronic device on the particular limb; and

control, based on the particular limb of the user that possesses the portable electronic device and further based on the positioning of the portable electronic device on the particular limb, at least one function of the portable electronic device.

2. The portable electronic device of claim 1 , wherein the detection mechanism includes at least one of a camera, an optical sensor, an ultrasonic sensor, an accelerometer, or a gyroscope.

3. The portable electronic device of claim 1 , further comprising:

a display operably coupled to the processor; and

a user interface operably coupled to the processor,

wherein the processor is further operable to:

output, for display, at least one of textual messages or images; and

after outputting the at least one of the textual messages or the images, determine the reference position for the portable electronic device further based on inputs received via the user interface.

4. The portable electronic device of claim 1 , further comprising:

an audio output device coupled to the processor,

wherein the at least one function of the portable electronic device controlled by the processor includes a direction of audio outputted by the audio output device, and

wherein the processor is further operable to control the audio output device to output the audio toward an expected head location of the user based on the particular limb of the user that possesses the portable electronic device.

5. The portable electronic device of claim 1 , further comprising:

an audio input device coupled to the processor,

wherein the at least one function of the portable electronic device controlled by the processor includes a direction from which audio is received by the audio input device, and

wherein the processor is further operable to control the audio input device to detect audio from an expected head location of the user based on the particular limb of the user that possesses the portable electronic device.

6. The portable electronic device of claim 1 , further comprising:

a display coupled to the processor,

wherein the at least one function of the portable electronic device controlled by the processor includes arrangement of information displayed on the display, and

wherein the processor is further operable to control the display to arrange the displayed information based on the particular limb of the user that possesses the portable electronic device.

7. The portable electronic device of claim 1 , further comprising:

a user interface coupled to the processor,

wherein the at least one function of the portable electronic device controlled by the processor includes a configuration of the user interface, and

wherein the processor is further operable to control the configuration of the user interface based on the particular limb of the user that possesses the portable electronic device.

8. The portable electronic device of claim 1 , wherein the processor operable to determine the reference position for the portable electronic device is further operable to:

determine the reference position further based on at least one of:

an activation, at the portable electronic device, of a limb detection feature that determines the particular limb of the user that possesses the portable electronic device, or

general use of the portable electronic device by the user that is not part of an initial start-up of the portable electronic device.

9. The portable electronic device of claim 1 , wherein the processor operable to determine the reference position for the portable electronic device is further operable to:

determine, in response to receiving at least one user input, and based on at least one output of the detection mechanism, at least one of:

an orientation of the portable electronic device when the at least one user input was received, or

a position of the portable electronic device relative to a user of the portable electronic device when the at least one user input was received; and

determine the reference position for the portable electronic device further based on at least one of the orientation of the portable electronic device or the position of the portable electronic device relative to the user of the portable electronic device.

10. The portable electronic device of claim 1 , wherein the processor is further operable to:

determine whether detected movement along at least one of three axes in a three-dimensional space is in a positive direction or a negative direction relative to the reference position, the detected movement corresponding to the one or more characteristics, and

wherein the processor operable to determine which limb of the user possesses the portable electronic device is further operable to determine the particular limb of the user that possesses the portable electronic device based on whether the detected movement along the at least one of the three axes in the three-dimensional space is in the positive direction or the negative direction relative to the reference position.

11. The portable electronic device of claim 1 , further comprising:

a memory operable to store detected characteristics of a previous use of the portable electronic device by the user over a period of time to produce historical characteristics that indicate which limb of a plurality of limbs of the user previously possessed the portable electronic device, and

wherein the processor, operable in accordance with stored operating instructions to determine the particular limb of the user that possesses the portable electronic device, is further operable to determine, based on the historical characteristics, the particular limb of the user that possesses the portable electronic device.

12. A method comprising:

detecting, by a portable electronic device, one or more characteristics relating to how a user handles the portable electronic device;

determining a reference position from one or more positions of the portable electronic device, wherein the portable electronic device in the reference position is at rest and possessed by at least one limb of the user;

determining, by the portable electronic device based on a comparison of the reference position to at least one of the one or more characteristics detected by the portable electronic device based on an updated position of the portable electronic device that is different than the reference position, a particular limb of the user that possesses the portable electronic device;

responsive to determining the particular limb of the user that possesses the portable electronic device, determining, based on the at least one of the one or more characteristics, a positioning of the portable electronic device on the particular limb of the user that possesses the portable electronic device, wherein the positioning comprises at least one of a location or an orientation of the portable electronic device on the particular limb; and

controlling, by the portable electronic device, based on the particular limb of the user that possesses the portable electronic device and further based on the positioning of the portable electronic device on the particular limb, at least one function of the portable electronic device.

13. The method of claim 12 , further comprising:

storing the one or more characteristics over a period of time to produce historical characteristics,

wherein determining the particular limb of the user that possesses the portable electronic device is based on the historical characteristics.

14. The method of claim 12 , wherein determining the reference position for the portable electronic device further comprises:

outputting, by the portable electronic device and for display, at least one of textual messages or images;

after outputting the at least one of the textual messages or the images, receiving, by the portable electronic device, inputs from the user; and

determining the reference position for the portable electronic device further based on the inputs received from the user.