Mobile Device-Based Radar System for Applying Different Power Modes to a Multi-Mode Interface

A method implemented in a user device for managing battery power modes of the user device, the method comprising:

• maintaining, by a battery power management module, a radar system of the user device in a first radar-power state of a plurality of radar-power states, the first radar-power state sufficient to generate a radar field and sense reflections from a user within the radar field;
• determining, by an interaction manager, a presence or movement of the user within the radar field based on the sensed reflections;
• responsive to the determining of the presence or movement of the user within the radar field, causing, by the battery power management module, the radar system to change to a second radar-power state of the plurality of radar-power states, the second radar-power state being a higher power state than the first radar-power state;
• responsive to or incident with the radar system changing to the second radar-power state:
• determining a level of interaction by the user with the user device based on the determined presence or movement of the user within the radar field;
• selecting, by the interaction manager module and based on the determining of the level of interaction by the user with the user device, a battery power mode from a plurality of battery power modes;
• and
• applying, by the interaction manager, the selected battery power mode to provide a corresponding display that provides visual feedback corresponding to the level of interaction by the user with the user device, the corresponding display including a low-luminosity display, a monochrome display, or a high-luminosity and color saturation display.

An electronic device comprising:

• a radar system implemented at least partially in hardware, the radar system configured to:
• generate a radar field and provide radar data corresponding to reflections from a user within the radar field;
• and
• operate at one of a plurality of radar-power states including a first radar-power state and a second, higher radar-power state;
• a processor configured to analyze the radar data to detect a presence or movement of the user within the radar field;
• a battery power management module configured to cause, responsive to detection of the user within a specified range of the electronic device using the first radar-power state and a first battery power mode of a plurality of battery power modes, the radar system to change to the second, higher radar-power state to provide radar data usable to determine a level of interaction of the user with the electronic device;
• and
• an interaction manager module configured to:
• determine the level of interaction of the user with the electronic device based on the radar data obtained by the radar system operating at the second, higher radar-power state;
• and
• based on the determined level of interaction of the user with the electronic device, select and apply a second, higher battery power mode from the plurality of battery power modes to provide a corresponding display that provides visual feedback corresponding to the level of interaction by the user with the electronic device, the corresponding display including a low-luminosity display, a monochrome display, or a high-luminosity and color saturation display.