Systems and methods for handgrip and case detection for multi-carrier wireless systems
AssigneeApple Inc.
InventorsRajesh Bezawada, Aditya N. Srivastava, Harsha Shirahatti
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Abstract
Systems and methods for multi-carrier frequency grip detection are described. For example, a method may include determining a first signal strength of a first signal received using a first antenna from a source device; determining a second signal strength of a second signal received using a second antenna from the source device; comparing the first signal strength with the second signal strength; and detecting a detuned condition for a device including the first antenna and the second antenna based on the comparison of the first signal strength with the second signal strength.
Claims24
A handheld computing device comprising:
- a first antenna for receiving a first signal from a first source device and a second signal from a second source device;
- a second antenna for receiving a third signal from the first source device and a fourth signal from the second source device;
- and
- a processing apparatus configured to
- compare a first signal strength associated with the first signal with a second signal strength associated with the third signal,
- compare a third signal strength associated with the second signal with a fourth signal strength associated with the fourth signal, and
- detect a detuned condition for the handheld computing device based on the comparison of the first signal strength with the second signal strength and the comparison of the third signal strength with the fourth signal strength.
A method comprising:
- determining a first signal strength of a first signal received using a first antenna from a source device;
- determining a second signal strength of a second signal received using a second antenna from the source device;
- comparing the first signal strength with the second signal strength;
- detecting a detuned condition for a device including the first antenna and the second antenna based on the comparison of the first signal strength with the second signal strength;
- determining an activity state of the device including the first antenna and the second antenna;
- and
- entering a grip detection mode based on the activity state, wherein the first signal strength and the second signal strength are compared responsive to being in the grip detection mode.
A handheld computing device comprising:
- a first antenna for receiving a first signal from a source device;
- a second antenna for receiving a second signal from the source device;
- and
- a processing apparatus configured to
- compare a first signal strength associated with the first signal with a second signal strength associated with the second signal,
- detect a grip condition for a device including the first antenna and the second antenna based on the comparison of the first signal strength with the second signal strength,
- determine a classification of a radio frequency environment of the handheld computing device, and
- adjust, based on the classification of the radio frequency environment, a number of source devices for which signal strengths are compared to detect the grip condition.
Dependencies are inferred from the claim text.