Abstract:
A signal measurement method includes receiving a signal from a signal generating module; displaying a wave of the signal; reading a reference parameter of the signal, and adjusting the wave according to the reference parameter; measuring the signal according to the wave after adjustment; and displaying the measurement result.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    Embodiments of the present disclosure relate to measuring systems and methods, and particularly to a system and a method for measuring signals. 
         [0003]    2. Description of the Related Art 
         [0004]    Currently, oscilloscopes are commonly used for measuring and displaying cyclic waves of electronic signals. When various signals are to be measured using an oscilloscope, it is necessary to set a plurality of relevant knobs or switches individually to pre-determined positions in advance, and manually adjust the scales of displayed graphs. It is inconvenient and time consuming for operators performing numerous samples of signals to be measured. 
         [0005]    What is needed, therefore, is to provide a more efficient system and method for signal measurement. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0006]      FIG. 1  is a block diagram of one embodiment of a signal measuring system. 
           [0007]      FIG. 2  is a flowchart of one embodiment of a signal measuring method. 
       
    
    
     DETAILED DESCRIPTION 
       [0008]      FIG. 1  is a block diagram of one embodiment of a signal measuring system  1 . The system  1  includes a signal generating module  10 , a wave displaying module  20 , and a controlling module  30  connected in series. The wave displaying module  20  is connected to the signal generating module  10  via a plurality of signal channels C 1 , C 2  . . . Cn. The controlling module  30  includes a channel selecting module  32 , an adjusting module  34 , a measuring module  36 , and a result outputting module  38 . The channel selecting module  32  and the adjusting module  34  are connected to the wave displaying module  20 . The adjusting module  34 , the measuring module  36 , and the result outputting module  38  are connected in series. 
         [0009]    The signal generating module  10  is an electronic device which generates signals to be measured, such as an RGB signal, a timing signal, and a synchronization signal, for example. The wave displaying module  20  is an oscilloscope, in one embodiment, which receives a generated signal from the signal generating module  10  via a corresponding signal channel, such as the signal channel C 1 , and displays a wave graph of the generated signal on a screen thereof. 
         [0010]    The controlling module  30  is configured for sampling and measuring the generated signal automatically. The controlling module  30  is located in a computer system (not shown) in which an operating system is used to control the controlling module  30 . The channel selecting module  32  is configured to select a signal channel to transmit a required signal to be measured. A predetermined number of samples of each signal to be measured is stored in the measuring module  36 . 
         [0011]      FIG. 2  is a flowchart of one embodiment of a signal measuring method. The method of  FIG. 2  may be used to determine characteristics of signals to be measured. Depending on the embodiment, additional blocks may be added, others deleted, and the ordering of the blocks may be changed. 
         [0012]    In block  100 , the operating system is operated to control the channel selecting module  32  to turn on one of the signal channels C 1 , C 2  . . . Cn. For example, when the signal channel C 1  is turned on, the wave displaying module  20  receives a corresponding signal via the signal channel C 1 . The signal is selected by clicking corresponding signal selecting buttons on a user interface of the operating system. 
         [0013]    In block  200 , the wave displaying module  20  displays a wave of the received signal, and transmits reference parameters of the selected signal to the adjusting module  34 . The reference parameters may be period, peak voltage etc. of the selected signal. 
         [0014]    In block  300 , the adjusting module  34  regulates the wave displayed on the oscilloscope  20 , such as a position and a resolution of the wave according to the reference parameters. 
         [0015]    In block  400 , the measuring module  36  may sample and measure predetermined characteristics of the selected signal according to a user selected control button on the user interface. Measuring may, for example, include reading a minimum input high level voltage and a maximum input low level voltage of the selected signal. 
         [0016]    In block  500 , the measuring module  36  determines whether the predetermined of samples has been taken. If the predetermined of samples has been taken, block  600  is executed. Otherwise, if the predetermined of samples has not been taken, the flow returns to block  400 . 
         [0017]    In block  600 , the measuring module  36  determines whether all of the signals to be sampled and measured have been sampled and measured. If all of the signals to be sampled and measured have been sampled and measured, block  700  is executed. Otherwise, if any of the signals to be sampled and measured have not been sampled and measured, the flow returns to block  100 . 
         [0018]    In block  700 , the measuring module  36  transmits measuring results of each signal to the result outputting module  38 . 
         [0019]    In block  800 , the outputting module  38  processes the measuring results of all of the signals, and shows the measuring results via a display screen of the computer system. The measuring results may be displayed in a form of graphs or tables. The quality of the measured signals can be determined by reading the measuring results. 
         [0020]    The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above everything. The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others of ordinary skills in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those of ordinary skills in the art to which the present disclosure pertains without departing from its spirit and scope. Accordingly, the scope of the present disclosure is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein.