Pressure Sensing Circuit for Precise Object Selection

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Solution Overview

Problem

Electronic devices struggle to precisely select and control overlapping objects in augmented reality or 3D maps due to the inability to accurately detect and respond to pressure inputs, leading to difficulties in acquiring information from these objects.

Innovation Solution

An electronic device with a pressure detection circuit and a processor that can detect pressure levels on a touch screen display, allowing for the selection of operations related to objects based on the detected pressure, enabling precise control and information acquisition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If multiple objects are overlappingly displayed on the screen to provide more information, then the information density increases, but the ability to precisely select and control individual objects deteriorates

Engineering Contradiction:
Improveinformation densityVSAvoidobject selection precision
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the system responsive to varying pressure levels. Instead of static selection, the interface dynamically adapts to different pressure inputs, allowing users to select objects based on pressure magnitude. This resolves the contradiction by enabling precise object selection in overlapping displays through dynamic pressure-based interaction.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the pressure parameter detection capability to enable fine-grained selection. By detecting different pressure levels and mapping them to different operations or selection states, the system allows precise control of overlapping objects while maintaining high information density on the display.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If pressure detection capability is added to enable precise object selection, then the control precision improves, but the device complexity increases

Engineering Contradiction:
Improvepressure detection accuracyVSAvoidsystem structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies universality by making the existing touch screen serve multiple functions: it acts as both a display interface and a pressure sensing interface. The same hardware components are utilized for both visual output and tactile input detection, avoiding the need for separate complex sensing mechanisms while achieving precise pressure measurement.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the touch screen display function with pressure detection function into a single integrated interface. By combining these functions, the system achieves precise object selection capability without adding separate complex hardware components, thus improving measurement precision while limiting device complexity increase.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If pressure-based operation selection is implemented, then the user convenience improves, but the processing complexity increases

Engineering Contradiction:
Improveuser convenienceVSAvoidcontrol logic
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies local quality by associating different pressure level ranges with different operations for each object. Instead of complex global processing, the system locally maps pressure ranges to specific actions, simplifying the control logic while improving user convenience through intuitive pressure-based interaction.

Inventive Principle:
Principle #3Local quality

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 accurate selection and control of overlapping objects, enhancing user convenience by allowing rapid acquisition and display of information through varied pressure inputs.

Implementation Method 1

a pressure detection circuit disposed between the first plate and the second plate and configured to detect pressure by external pressure applied to at least a portion of the touch screen display

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentUS11029797B2Electronic device and method for controlling pressure input
Publication Date: 2021.06.08 SAMSUNG ELECTRONICS CO LTD
  • US11029797B2 patent drawing
  • US11029797B2 patent drawing
  • US11029797B2 patent drawing

AI summary

An electronic device according to various embodiments of the present invention comprises: a housing including a first plate and a second plate spaced apart from the first plate; a touch screen display disposed inside the housing and exposed through a part of the first plate; a pressure sensing circuit disposed between the first plate and the second plate, and configured to detect pressure caused by an external pressure applied to at least a part of the touch screen display; a wireless communication circuit disposed inside the housing; at least one processor disposed inside the housing and electrically connected to the touch screen display, the pressure sensing circuit, and the wireless communication circuit; and a memory disposed inside the housing and electrically connected to the processor, wherein the memory is configured to store an application program including a user interface and instructions, wherein the instructions are configured to cause the processor to, when executed, display at least one object on the user interface on the touch screen display, detect a pressure level for a user input in the at least one object or in the periphery thereof by using the pressure sensing circuit, and select one of a plurality of operations, related to the at least one object, on the basis of at least one part of the detected pressure level. Other embodiments are also possible.