Image Capturing Apparatus Multiple Memory Sets Duplex Scanning
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Solution Overview
Problem
Current image capturing apparatuses experience delays in transmitting image data from memory to the processor, leading to reduced scan speed and efficiency during one pass duplex scanning, as the transmission time exceeds the scan time, causing a waiting period before the next document can be scanned.
Innovation Solution
The apparatus is enhanced by incorporating multiple memory sets, allowing simultaneous registration and output of image data from one document while scanning the next document, thereby reducing the waiting time for data transmission and improving scan efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single memory set is used to store image data, then the device complexity is low, but the scan efficiency decreases due to waiting time for data transmission
Solution Approach 1:
The memory module is segmented into multiple memory sets (first memory set, second memory set, etc.), each capable of storing image data independently. This segmentation allows parallel operation where one memory set stores data while another transmits it, eliminating the waiting time and improving scan efficiency without requiring a completely new memory architecture
Solution Approach 2:
The patent implements preliminary action by having multiple memory sets ready in advance. While one memory set is transmitting image data to the image processor, another memory set is already prepared to receive and store the next document's image data. This pre-positioning of resources eliminates idle waiting time and maintains continuous scanning operation
2Loss of time
If the transmission speed is increased, then the data transmission time is reduced, but the device complexity increases due to faster transmission requirements
Solution Approach 1:
The patent introduces memory sets as intermediary buffers between the image sensors and the image processor. Instead of directly increasing transmission speed, the memory sets act as intermediaries that temporarily store image data, allowing the transmission to occur at the existing speed without creating bottlenecks. This intermediary approach reduces the effective transmission time by enabling parallel operations without requiring faster transmission hardware
Data Source
AI summary
An image capturing apparatus is provided for scanning documents, each of which has first and second pages of data. The image capturing apparatus includes first and second image sensors for reading the first and second pages of data of the documents. The method of capturing images includes scanning the m-th document and registering the first and the second image data in the first and second memories of one memory set and outputting the image data, wherein the value m has an initial value of 1; and increasing m by an increment of 1 when in the first and the second memories of at least one memory set are stored no image data or the first and the second image data are being completely output, and repeating the step of scanning the m-th document until the image capturing of all the documents is completed.