Intermediate Smart Card for Free-Hand Mobile Messaging
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Solution Overview
Problem
Conventional mobile communication devices are expensive and cumbersome for free-hand message creation and transmission, particularly for SMS and other data transport methods, lacking generic, low-cost solutions that do not require proprietary interfaces or additional hardware.
Innovation Solution
A compact, inexpensive device with a touch-sensitive pad and Intermediate Smart Card that enables free-hand message creation and recognition, converting messages into standard GSM formats for transmission, compatible with all handsets and supporting multiple data transport methods like SMS, MMS, and WAP browsing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional mobile communication devices are used for free-hand message creation, then message transmission capability is provided, but device cost and complexity increase
Solution Approach 1:
The device is segmented into functional modules: a touch-sensitive pad for free-hand input, an Intermediate Smart Card for message storage and formatting, and integration with existing GSM handset capabilities. This segmentation allows free-hand message creation without requiring the entire device to be complex, as each component performs a specific function.
Solution Approach 2:
The Intermediate Smart Card acts as an intermediary between the touch-sensitive pad and the GSM network. It receives free-hand drawn messages, formats them into standard GSM message types (SMS, MMS, WAP), and transmits them through the network. This intermediary component enables free-hand input without requiring the main handset to have complex free-hand processing capabilities.
2Ease of operation
If proprietary interfaces or additional hardware are used for free-hand messaging, then free-hand message creation is enabled, but device cost increases
Solution Approach 1:
The Intermediate Smart Card is designed as a universal component that can format messages into multiple GSM standards (SMS, MMS, WAP) and interface with various handset types. This multi-functionality eliminates the need for proprietary interfaces or additional hardware for each message type, reducing manufacturing costs while maintaining free-hand message creation capability.
Solution Approach 2:
The system uses standard GSM message formats as templates or copies of existing communication protocols. Instead of creating new proprietary message formats, the Intermediate Smart Card copies and adapts free-hand drawings into established GSM message structures, leveraging existing network infrastructure and reducing development and manufacturing costs.
3Productivity
If conventional messaging methods are used, then device compatibility is maintained, but message creation efficiency decreases
Solution Approach 1:
The Intermediate Smart Card dynamically changes message parameters (format, encoding, protocol) based on the selected data transport method (SMS, MMS, WAP). This allows the system to maintain high message creation efficiency through free-hand input while adapting to multiple communication protocols and handset types, resolving the contradiction between productivity and adaptability.
Data Source
AI summary
A communication system and device that enables free-hand drawn SMS (Short Messaging Service) messages to be transmitted and received from/to various user devices. A buffer device is inserted within a GSM compatible handset providing a buffer for both conventional SMS messages created by typing a message on the keypad of the handset and for free-hand drawn SMS messages created by drawing or writing the free-hand message on a data entry device. An optional OCR (Optical Character Recognition) facility can be provided in either the buffer device inserted within the handset or in a network server that receives the transmitted message and processes it for proper routing to the intended recipient.