Ink Data Manipulation Objects for Cross-Device Compatibility
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Solution Overview
Problem
Existing ink data models are limited in their ability to manipulate and share hand-drawn stroke data across multiple devices and applications, as they primarily process static data and lack real-time editing capabilities, and fail to abstract device-dependent attributes into device-independent vector data suitable for various applications.
Innovation Solution
The introduction of manipulation objects that can slice and share stroke objects, along with an abstracted model that converts device-dependent pen event data into device-independent vector data, enabling real-time manipulation and sharing across multiple devices, and the separation of ink data language from format to facilitate flexible exchange between different formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ink data is stored in device-dependent formats (raster data, application-specific formats), then the data can be generated and processed by individual applications, but the data cannot be shared or manipulated across different devices and applications
Solution Approach 1:
The patent introduces an intermediate ink data format that serves as a universal representation layer between device-specific input formats and application-specific output formats. This intermediate format enables conversion between different devices and applications without requiring direct compatibility between them, resolving the contradiction by adding a mediating conversion layer.
Solution Approach 2:
The ink data structure is segmented into distinct components including stroke objects, point objects, and curve segment objects. Each component represents a specific aspect of the ink data, allowing flexible manipulation and conversion while maintaining overall data integrity across different devices and applications.
2Reliability
If complete stroke data is transmitted across networks, then data integrity is maintained, but transmission time and bandwidth consumption increase
Solution Approach 1:
Stroke objects are divided into multiple point objects, and curve segments are further segmented with individual identifiers. This segmentation allows selective transmission of only necessary data portions, maintaining integrity where needed while reducing overall transmission volume and time.
Solution Approach 2:
The system transmits only the minimum necessary data required to reproduce the ink data accurately. By using efficient data structures and selective transmission of point objects and curve segments, the system avoids transmitting redundant information while preserving data integrity.
3Adaptability or versatility
If device-dependent pen event data is processed directly, then the original input characteristics are preserved, but the data cannot be used across different device types
Solution Approach 1:
Device-dependent pen event data is converted into an intermediate device-independent ink data format that preserves essential input characteristics while removing device-specific dependencies. This intermediate representation maintains the core information needed for reproduction while enabling cross-device compatibility.
Solution Approach 2:
The system transforms device-specific parameters into standardized parameters that capture the essential characteristics of the input without being tied to any particular device type. This parameter transformation enables the same ink data to be accurately reproduced across different input devices.
4Ease of operation
If ink data is rasterized immediately after input, then the data is ready for display, but the data cannot be manipulated or edited in vector form
Solution Approach 1:
The ink data maintains a dynamic structure that allows flexible conversion between vector and raster representations. The data can be manipulated in vector form when editing is needed, and converted to raster form when display or final output is required, providing operational flexibility without permanent conversion.
Solution Approach 2:
The system performs preliminary processing to create an optimized vector representation that is ready for both manipulation and efficient rasterization when needed. This preliminary structuring reduces the time required for subsequent operations whether manipulation or display is the next step.
Data Source
AI summary
A method of outputting digital ink data includes: detecting one or more pieces of stroke data; judging whether the one or more pieces of stroke data form a complete unit of semantics; in a case that the one or more pieces of the stroke data form the complete unit of semantics, aggregating the one or more pieces of stroke data into one message; and outputting the aggregated one or more pieces of stroke data together in the one message.