Co-located Independent Radar Transceivers for User Identification
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Solution Overview
Problem
Existing user interfaces in electronic devices are often cumbersome and difficult to use, lacking personalization and requiring advanced knowledge, which hinders user efficiency and satisfaction, especially in voice user interfaces where accurate user identification is challenging.
Innovation Solution
An electronic device with co-located, independent radar transceivers that perform radar measurements to determine the location and identity of objects, including individuals, providing 360° coverage and allowing for customized user interfaces without the need for predefined keywords or commands, by using amplitudes of radar signals to determine angular positions and vital signs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional user interfaces are used in electronic devices, then the device structure remains simple, but the user interface becomes cumbersome and difficult to use, requiring advanced knowledge and lacking personalization
Solution Approach 1:
The patent replaces traditional mechanical input interfaces (buttons, switches, keyboards) with a radar-based detection system that uses electromagnetic waves to sense user presence, position, and gestures. This substitution enables intuitive operation without physical interaction, resolving the contradiction between ease of operation and device complexity by eliminating the need for complex UI mechanisms while enhancing user interaction capabilities
Solution Approach 2:
The patent introduces radar transceivers as an intermediary between the user and the electronic device. These transceivers detect user presence, position, and gestures through electromagnetic waves, serving as a mediator that translates physical user states into digital signals for interface control. This intermediary enables personalized and intuitive user interfaces without requiring direct mechanical interaction or complex software processing
2Ease of operation
If voice user interfaces are implemented for intuitive interaction, then ease of operation improves, but accurate user identification becomes challenging
Solution Approach 1:
The patent merges voice recognition technology with radar detection technology into a unified user identification system. The radar component detects physical presence, position, and gestures, while the voice component processes spoken commands. By combining these two independent detection modalities, the system achieves accurate user identification that overcomes the limitations of voice-only interfaces, resolving the contradiction between ease of operation and identification precision
3Measurement precision
If multiple radar transceivers are co-located to provide 360° coverage and determine angular position, then location determination accuracy improves, but device complexity increases
Solution Approach 1:
The patent segments the radar detection function into multiple co-located transceivers, each responsible for detecting signals from specific spatial directions. By distributing the detection function across multiple independent transceivers with different fields of view, the system achieves 360° coverage and accurate angular position determination. This segmentation resolves the contradiction by distributing complexity across multiple simple, identical units rather than requiring a single complex transceiver
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables intuitive and efficient user interaction by accurately identifying users and customizing interfaces based on their preferences, improving user experience and satisfaction through precise location and identity determination.
Implementation Method 1
multiple independent radar transceivers that are co-located in the electronic device... During operation, the radar transceivers transmit radar signals and perform the radar measurements
Implementation Method 2
the location includes an angular position corresponding to amplitudes of the radar measurements
Data Source
AI summary
An electronic device that performs radar measurements is described. This electronic device includes independent, co-located radar transceivers, and the independent radar transceivers are not synchronized with each other. Moreover, the radar transceivers may have different fields of view that partially overlap. During operation, the radar transceivers transmit radar signals and perform the radar measurements. Then, based at least in part on the radar measurements, the electronic device determines a location of an object in an environment around the electronic device. For example, the location may include an angular position that is determined from the amplitudes of the radar measurements performed using at least a subset of the radar transceivers. Furthermore, the object may be an individual, and the electronic device may identify the individual based at least in part on the radar measurements. Note that the radar measurements performed by a given radar transceiver do not provide angular information.