Cellular Telephone Print Preview System
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Solution Overview
Problem
Mobile communication devices like cellular phones have limited resources, making it difficult to implement functions such as printing capabilities due to lack of processing power and memory, which are typically required for such tasks.
Innovation Solution
A cellular telephone is configured with a self-contained print preview system that generates print-ready data in a device-independent format, allowing for a print preview without relying on external resources or devices, using print logic and a viewing application to convert and display the data in a format like XHTML-print, enabling wireless transmission to any compatible image forming device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If printing capabilities are implemented on a mobile device, then functionality is improved, but processing power and memory requirements exceed available resources
Solution Approach 1:
The patent extracts the heavy processing workload from the mobile device by generating only print-ready data in a device-independent format (such as PDF or XHTML-print) rather than attempting to perform full print processing locally. This extracted approach allows the mobile device to handle only the essential data generation task while relying on external devices for rendering and printing, thereby resolving the contradiction between adding printing functionality and maintaining limited processing power.
Solution Approach 2:
The patent introduces an intermediary print-ready data format that serves as a bridge between the mobile device and external printing devices. This intermediary format (PDF, XHTML-print) contains all necessary printing information in a standardized, device-independent manner, allowing the mobile device to communicate print requirements without needing to directly control the printing process or have specialized printing hardware, thus enabling printing capability without requiring additional processing power.
2Adaptability or versatility
If printing capabilities are implemented on a mobile device, then functionality is improved, but memory requirements exceed available resources
Solution Approach 1:
The patent extracts memory-intensive printing operations from the mobile device by storing only essential print-ready data in a compact, device-independent format. Rather than maintaining large memory buffers for print spooling, driver configurations, or rendered preview images, the system extracts only the necessary document content and formatting information into a standardized format that can be transmitted to external devices, thereby enabling printing functionality while consuming minimal memory resources.
Solution Approach 2:
The patent employs a disposable approach to print data by generating print-ready data in a standardized format that can be easily transmitted and discarded after printing. Rather than maintaining persistent printing subsystems or large memory allocations for print processing, the system creates lightweight print data objects, transmits them to external devices, and releases associated resources, thus enabling printing capability without requiring significant memory investment.
3Reliability
If a self-contained print preview system is implemented, then independence from external devices is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by implementing a print preview system that uses the device's existing web browser or viewing application to render print-ready data in standardized formats (PDF, XHTML-print). Rather than creating a separate, dedicated print preview subsystem, the system leverages the universal capabilities of existing applications to handle print preview functionality, thus achieving independence from external preview devices while avoiding the complexity of building a specialized preview engine.
Solution Approach 2:
The patent implements self-service by enabling the mobile device to independently generate, render, and preview print-ready data using its own resources and existing applications. The device serves itself by using its web browser or viewing application to display print previews locally, eliminating the need for external preview servers or devices. This self-contained approach enhances reliability and independence while keeping system complexity manageable by reusing existing components.
Data Source
AI summary
In one embodiment, a print control system is provided for use in a cellular telephone. A printing logic is configured to generate printer-ready data from a selected data to be printed. A viewing logic is configured to interpret and display the printer-ready data to simulate a printed state of the printer-ready data.