Image acquiring device and method or rotating images

Abstract

An image acquiring device and method of rotating images includes a scanning module, a driving mechanism, a selecting module, a control-processing unit and a memory. The scanning module scans a plurality of originals in sequence in conjunction with the driving mechanism. The selecting module selects a specific mark of a first original as a basis for judging an orientation state of a second original. The control-processing unit generates a digital mark signal stored in the memory according to the signals output from the scanning module and the selecting module. The control-processing unit judges a position of the digital mark signal in a digital signal obtained after the second original is scanned, and thus generates a rotating signal and rotates the digital signal into a normal image signal according to the rotating signal. Thus, the document image may be automatically rotated into a normal state.

1 . An image acquiring device, comprising: 
 a scanning module for sequentially scanning a first original and a second original to respectively generate a first analog signal and a second analog signal, wherein a specific mark is located at a specific position of each of the originals;    a driving mechanism for moving the scanning module with respect to each of the originals;    a selecting module for selecting the specific mark on the first original and generating a standard position signal corresponding to a position of the specific mark according to a reference coordinate system of the image acquiring device;    a control-processing unit for processing the first analog signal and the second analog signal into a first digital signal and a second digital signal respectively, and generating a digital mark signal of the specific mark;    a memory for storing the digital mark signal and the standard position signal, based on which the control-processing unit judges an orientation state of the second digital signal, wherein the control-processing unit identifies a position of the digital mark signal in the second digital signal and generates a rotating signal.    
   
   
       2 . The device according to  claim 1 , wherein the control-processing unit further rotates the second digital signal according to the rotating signal and generates a normal image signal.  
   
   
       3 . The device according to  claim 1 , wherein the selecting module comprises: 
 a display on which a user views an image of the first original; and    an input device through which the user selects the specific mark on the display.    
   
   
       4 . The device according to  claim 1 , wherein the selecting module comprises: 
 an input device through which a user selects the specific mark.    
   
   
       5 . The device according to  claim 1 , wherein the selecting module automatically determines the position of the specific mark according to the first digital signal.  
   
   
       6 . The device according to  claim 1 , wherein the image acquiring device is connected to an image processing device through an input/output port and outputs the second digital signal and the rotating signal to the image processing device, such that the image processing device performs a rotation process on the second digital signal according to the rotating signal.  
   
   
       7 . The device according to  claim 2 , wherein the image acquiring device is connected to an image processing device through an input/output port and outputs the normal image signal to the image processing device.  
   
   
       8 . The device according to  claim 2 , wherein the image acquiring device is connected to an printing device through an input/output port and the control-processing unit further processes the normal image signal into a print signal and outputs the print signal to the printing device.  
   
   
       9 . The device according to  claim 1 , wherein the rotating signal indicates that the second digital signal be rotated by 0 or 180 degrees.  
   
   
       10 . The device according to  claim 1 , wherein the rotating signal indicates that the second digital signal be rotated by 0, 90, 180 or 270 degrees.  
   
   
       11 . An image acquiring method for scanning a first original and a second original, a specific mark being located at a specific position of each of the originals, the method comprising the steps of: 
 scanning the first original to obtain a first analog signal;    processing the first analog signal into a first digital signal;    selecting the specific mark on the first original and generating a standard position signal corresponding to a position of the specific mark according to a reference coordinate system;    generating a digital mark signal of the specific mark;    storing the digital mark signal and the standard position signal, for judging an orientation state of the second original;    scanning the second original to obtain a second analog signal;    processing the second analog signal into a second digital signal; and    identifying a position of the digital mark signal in the second digital signal to generate a rotating signal.    
   
   
       12 . The method according to  claim 11 , further comprising the step of: 
 rotating the second digital signal according to the rotating signal and generating a normal image signal.    
   
   
       13 . The method according to  claim 11 , wherein the step of generating the standard position signal comprises: 
 providing a selection interface for a user; and    receiving an input from the user who operates the selection interface to select the specific mark.    
   
   
       14 . The method according to  claim 11 , wherein the step of generating the standard position signal is performed by a selecting unit which automatically determines the position of the specific mark according to the first digital signal.  
   
   
       15 . The method according to  claim 11 , further comprising the step of: 
 outputting the rotating signal and the second digital signal to an image processing device.    
   
   
       16 . The method according to  claim 11 , wherein the rotating signal indicates that the second digital signal be rotated by 0 or 180 degrees.  
   
   
       17 . The method according to  claim 11 , wherein the rotating signal indicates that the second digital signal be rotated by 0, 90, 180 or 270 degrees.