Touch-Sensing Electronic Book With Low-Cost Page Number Detection
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Solution Overview
Problem
Existing electronic books face high production costs due to the use of expensive capacitive sensors and Hall ICs for touch sensing and page number detection, and the manual placement of magnets in books is labor-intensive and costly.
Innovation Solution
The use of a microprocessor, voltage sensing chip, and flash memory with a sheet body having conductive bodies on an insulating plate, where the sheet body is detachably mounted with different switch combinations to detect page numbers and sense touch, reducing costs by using copper foil and a plastic plate, and allowing users to mark pages with patterns or stickers for voice recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If expensive capacitive sensors (ITO sensor, flexible conductive thin film sensor) are used for touch sensing, then sensing precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent replaces expensive, durable capacitive sensors with inexpensive conductive materials (copper foil, conductive paint) that can be easily applied and replaced. The conductive bodies are disposed directly on the insulating plate body without requiring complex semiconductor fabrication processes, significantly reducing manufacturing costs while maintaining touch sensing functionality.
Solution Approach 2:
The patent substitutes the complex semiconductor-based capacitive sensor system with a simpler electrical system using basic conductive materials and voltage sensing chips. The touch sensing function is achieved through voltage changes in conductive bodies rather than through complex capacitive sensor arrays, simplifying the overall system architecture.
2Reliability
If Hall ICs are used for page number detection with magnets embedded in book pages, then detection reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent replaces expensive Hall ICs with inexpensive switches and a microprocessor-based detection system. Instead of using magnetic sensors for each page, the system uses simple switch combinations that can detect page numbers through electrical connections, dramatically reducing component costs while maintaining reliable page detection.
Solution Approach 2:
The patent creates a universal page detection system where a single microprocessor and switch assembly can detect page numbers across multiple pages. The sheet body with detachable switches serves multiple pages simultaneously, eliminating the need for individual Hall ICs on each page and enabling cost-effective production of multi-page electronic books.
3Measurement precision
If magnets are manually positioned and glued between book pages for page detection, then page number detection accuracy is improved, but productivity decreases
Solution Approach 1:
The patent replaces the manual mechanical process of positioning and gluing magnets between pages with an automated electrical system. The sheet body with pre-configured switches can be detachably mounted onto the plate body without manual assembly, allowing for faster, more automated production while maintaining accurate page number detection through electrical switch combinations.
Solution Approach 2:
The patent incorporates the page detection functionality into the sheet body itself through pre-configured switch combinations. The switches are integrated into the sheet structure during manufacturing, eliminating the need for separate manual magnet placement steps during book assembly. This preliminary integration of detection functionality streamlines the production process.
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
This solution provides cost-effective touch sensing and page number detection in electronic books, reducing manufacturing costs while maintaining effective sensing capabilities and allowing user interaction through voice recording.
Implementation Method 1
when the finger moves above any of the conductive bodies and is separated with respect to the conductive body by the plate body and the sheet body, the electrical voltage of the conductive body changes due to the capacitive charging and discharging effect
Implementation Method 2
The voltage sensing chip continuously scans and transmits the detection signal to the processing unit to process
Data Source
AI summary
The disclosure provides an electronic book with touch sensing and page number detection. The touch sensing is based on capacitive sensing principle, using a plate body, a sheet body, a conductive body, and a processing unit. The board body and the sheet body are similar to dielectric layer. The conductive body carries charges. When an external charged body changes the voltage of the conductive body with the plate and the sheet sandwiched in-between, the processing unit performs appropriate processing, and even plays a sound corresponding to the image or text on the sheet body. The electronic book of the present invention also has a page number detection function. The switches are configured to different combinations by the side shape of the sheet body. The present invention can play different sounds according to different contents on different pages.