Image Processing Handover via NFC and WFD
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Solution Overview
Problem
The existing handover technique for wireless communication between image processing devices is inefficient, as it requires waiting for long-range communication to be established before starting a job, leading to prolonged execution times for tasks like scanning and printing.
Innovation Solution
The system allows for the transmission of connection information and specific job-related data via short-range communication using NFC, enabling processing steps to begin before establishing long-range communication using protocols like WFD, thereby reducing the overall job completion time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the known handover technique is used to establish long-range wireless communication before starting job processing, then communication reliability is improved, but job execution time increases
Solution Approach 1:
The patent applies preliminary action by transmitting connection information and specific job-related data via short-range NFC communication before establishing long-range wireless communication. This allows the image processing apparatus to prepare and start processing steps in advance, so that when the long-range connection is established, the job can continue or complete more quickly, thus reducing overall execution time while maintaining communication reliability
2Adaptability or versatility
If only connection information is transmitted via short-range wireless communication in the known handover technique, then communication protocol compatibility is improved, but information transmission completeness deteriorates
Solution Approach 1:
The patent segments information transmission into two phases: first transmitting connection information via short-range NFC communication to establish protocol compatibility, then transmitting additional specific job-related data also via short-range communication before handover. This segmentation allows both protocol compatibility and information completeness to be achieved by dividing the transmission task across different communication protocols at appropriate stages
3Stability of the object's composition
If the system waits for long-range communication establishment before transmitting job-related data, then communication stability is improved, but processing efficiency deteriorates
Solution Approach 1:
The system performs preliminary transmission of specific job-related data via stable short-range NFC communication before establishing the long-range connection. This preliminary action allows the image processing apparatus to receive and prepare job data in advance, improving processing efficiency without compromising communication stability since the critical handover phase uses the more stable short-range protocol
Data Source
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AI summary
Image processing systems include image processing apparatuses and information processing apparatuses. Image processing apparatuses include first and second communication devices, which communicate using first and second communication protocols, respectively. Information processing apparatuses include third and fourth communication devices, which communicate using the first and second communication protocols, respectively. First and third communication devices communicate therebetween using the first communication protocol to transmit connection information therebetween. The connection information includes information for establishing communication using the second communication protocol. Second and fourth communication devices use the connection information to establish communication therebetween using the second communication protocol to transmit image data therebetween. Image processing apparatuses and information processing apparatuses start processes for completing a job prior to second and fourth communication devices establishing communication therebetween using the second communication protocol.