技术领域technical field
本发明涉及一种数据传送与接收方法以及数据传输系统，且特别涉及一种高速数据传送与接收方法以及高速数据传输系统。The invention relates to a data transmission and reception method and a data transmission system, and in particular to a high-speed data transmission and reception method and a high-speed data transmission system.
背景技术Background technique
近年来由于光电相关技术不断地进步，推动了液晶显示器市场的蓬勃发展。液晶显示器具有高画质、体积小、重量轻、低驱动电压、与低消耗功率等优点，因此被广泛应用于个人数字助理(PDA)、移动电话、笔记型电脑、桌上型显示器、车用显示器等电子产品，并逐渐取代阴极射线管而成为显示器的主流。In recent years, due to the continuous progress of optoelectronic related technologies, the liquid crystal display market has been vigorously developed. Liquid crystal displays have the advantages of high image quality, small size, light weight, low driving voltage, and low power consumption, so they are widely used in personal digital assistants (PDAs), mobile phones, notebook computers, desktop monitors, and automotive Display and other electronic products, and gradually replace the cathode ray tube and become the mainstream of the display.
液晶显示器(LCD)是一种利用液晶特性来达到显示效果的显示装置。液晶显示器的驱动系统包含时序控制电路(Timing Controller，TCON)、源极驱动器(Source Driver)以及栅极驱动器，其中源极驱动器接受时序控制电路传送过来的像素数据并将其转换成模拟电压信号，以控制液晶线显示器的像素单元来显示影像。由于时序控制电路以高速数据传输接口，例如时钟内嵌模式点对点接口(Clock-embedded Mode Point-to-PointInterface；CMPI)来传送数据至源极驱动器，时序控制电路传送数据的操作会产生相当强的电磁干扰(ElectroMagnetic Interference；EMI)。A liquid crystal display (LCD) is a display device that uses liquid crystal properties to achieve display effects. The driving system of the liquid crystal display includes a timing control circuit (Timing Controller, TCON), a source driver (Source Driver) and a gate driver, wherein the source driver receives the pixel data transmitted by the timing control circuit and converts it into an analog voltage signal, Display images by controlling the pixel units of the liquid crystal line display. Since the timing control circuit uses a high-speed data transmission interface, such as a clock-embedded mode point-to-point interface (Clock-embedded Mode Point-to-Point Interface; CMPI) to transmit data to the source driver, the operation of the timing control circuit to transmit data will generate a relatively strong Electromagnetic Interference (EMI).
因此，需要一种数据传送与接收方法以及数据传输系统来解决EMI的问题。Therefore, a data transmission and reception method and a data transmission system are needed to solve the problem of EMI.
发明内容Contents of the invention
本发明的一方面是在提供一种数据传送与接收方法以及数据传输系统，其变更数据界定符号(delimiter)的值，以解决数据传输时所产生的EMI问题。One aspect of the present invention is to provide a data transmission and reception method and a data transmission system, which change the value of a data delimiter to solve the EMI problem generated during data transmission.
根据本发明的一实施例，在此数据传送与接收方法中，首先进行第一数据传送步骤，以利用传送装置来传送第一数据，其中此第一数据包含第一数据界定符号(delimiter)以及第一数据主体，第一数据界定符号用以界定第一数据主体。然后，进行第二数据传送步骤，以利用传送装置来传送第二数据，其中第二数据包含第二数据界定符号以及第二数据主体，第二数据界定符号用以界定第二数据主体，且第二数据界定符号的值不同于第一数据界定符号的值。接着，利用接收装置来接收第一数据，以获得第一数据主体的内容。然后，利用接收装置来接收第二数据，以将第二数据界定符号的值变更为第一数据界定符号的值，而获得第二数据主体的内容。According to an embodiment of the present invention, in the data transmission and reception method, the first data transmission step is first performed to transmit the first data using the transmission device, wherein the first data includes a first data delimiter (delimiter) and The first data subject, the first data defining symbol is used to define the first data subject. Then, a second data transmission step is performed to transmit the second data by using the transmission device, wherein the second data includes a second data delimiting symbol and a second data body, the second data delimiting symbol is used to define the second data body, and the second data delimiting symbol is used to define the second data body, and The value of the second data-defining symbol is different from the value of the first data-defining symbol. Next, the receiving device is used to receive the first data to obtain the content of the first data subject. Then, the receiving device is used to receive the second data, so as to change the value of the second data defining symbol to the value of the first data defining symbol, so as to obtain the content of the second data body.
根据本发明的另一实施例，在此数据传送与接收方法中，首先提供第一数据，其中此第一数据包含第一数据界定符号以及第一数据主体，第一数据界定符号用以界定第一数据主体。然后，选择第一数据主体的至少一数据位为数据转换位。接着，进行数据界定符号决定步骤，以根据第一数据主体的数据转换位来决定第二数据的第二数据界定符号的值。然后，进行第二数据提供步骤，以提供第二数据，其中第二数据包含前述的第二数据界定符号以及第二数据主体，第二数据界定符号用以界定第二数据主体。接着，利用传送装置来依序传送第一数据和第二数据。然后，利用接收装置来接收第一数据，以获得第一数据主体的内容。接着，利用接收装置来接收第二数据，并进行转换判断步骤，以根据第一数据主体的数据转换位的值来决定第二数据界定符号的值，而获得第二数据主体的内容。According to another embodiment of the present invention, in the data transmission and reception method, the first data is firstly provided, wherein the first data includes a first data defining symbol and a first data body, and the first data defining symbol is used to define the first a data subject. Then, at least one data bit of the first data body is selected as a data conversion bit. Next, a data delimiting symbol determination step is performed to determine the value of the second data delimiting symbol of the second data according to the data conversion bit of the first data body. Then, a second data providing step is performed to provide second data, wherein the second data includes the aforementioned second data defining symbol and the second data body, and the second data defining symbol is used to define the second data body. Next, the first data and the second data are sequentially transmitted by using the transmission device. Then, the receiving device is used to receive the first data to obtain the content of the first data subject. Next, the receiving device is used to receive the second data, and a conversion judgment step is performed to determine the value of the delimiting symbol of the second data according to the value of the data conversion bit of the first data body, so as to obtain the content of the second data body.
根据本发明的又一实施例，此数据传输系统包含传送装置以及接收装置。传送装置用以依序传送第一数据和第二数据，其中第一数据包含第一数据界定符号以及第一数据主体，第一数据界定符号用以界定第一数据主体，第二数据包含第二数据界定符号以及第二数据主体，第二数据界定符号用以界定第二数据主体，且第二数据界定符号的值不同于第一数据界定符号的值。接收装置用以接收第一数据和第二数据，以获得第一数据主体和第二数据主体的内容，其中接收装置将第二数据界定符号的值变更为第一数据界定符号的值，而获得第二数据主体的内容。According to yet another embodiment of the present invention, the data transmission system includes a transmitting device and a receiving device. The transmission device is used to sequentially transmit the first data and the second data, wherein the first data includes the first data delimiting symbol and the first data body, the first data delimiting symbol is used to define the first data body, and the second data includes the second The data defining symbol and the second data body, the second data defining symbol is used to define the second data body, and the value of the second data defining symbol is different from the value of the first data defining symbol. The receiving device is used to receive the first data and the second data to obtain the contents of the first data body and the second data body, wherein the receiving device changes the value of the second data defining symbol to the value of the first data defining symbol to obtain The content of the second data subject.
由上述说明可知，本发明实施例的数据传送与接收方法以及数据传输系统变更数据界定符号的值，以使每笔数据的数据界定符号的值不固定。因此，可大幅减轻高速数据传送时所产生的EMI状况。It can be seen from the above description that the data transmission and reception method and the data transmission system of the embodiments of the present invention change the value of the data delimitation symbol so that the value of the data delimitation symbol of each data is not fixed. Therefore, the EMI situation generated during high-speed data transmission can be greatly reduced.
附图说明Description of drawings
为让本发明的上述和其他目的、特征、和优点能更明显易懂，上文特举多个优选实施例，并配合附图，作详细说明如下：In order to make the above and other purposes, features, and advantages of the present invention more comprehensible, a number of preferred embodiments are specifically cited above, together with the accompanying drawings, and are described in detail as follows:
图1绘示液晶显示器的驱动系统的功能方块示意图。FIG. 1 is a schematic functional block diagram of a driving system of a liquid crystal display.
图2绘示时序控制器所传输的数据的结构示意图。FIG. 2 is a schematic diagram of the structure of data transmitted by the timing controller.
图3A绘示根据本发明实施例的数据传送与接收方法的流程示意图。FIG. 3A is a schematic flowchart of a data transmission and reception method according to an embodiment of the present invention.
图3B绘示根据本发明实施例的第一数据的结构示意图。FIG. 3B is a schematic diagram illustrating the structure of the first data according to an embodiment of the present invention.
图3C绘示根据本发明实施例的第二数据的结构示意图。FIG. 3C is a schematic diagram illustrating the structure of second data according to an embodiment of the present invention.
图3D图绘示根据本发明实施例的传输第一数据和第二数据的示意图。FIG. 3D is a schematic diagram of transmitting first data and second data according to an embodiment of the present invention.
图4绘示根据本发明实施例的数据传输系统的架构示意图。FIG. 4 is a schematic diagram of a data transmission system according to an embodiment of the present invention.
图5A绘示根据本发明实施例的数据传送与接收方法的流程示意图。FIG. 5A is a schematic flowchart of a data transmission and reception method according to an embodiment of the present invention.
图5B绘示根据本发明实施例的第一数据的结构示意图。FIG. 5B is a schematic diagram illustrating the structure of the first data according to an embodiment of the present invention.
图5C绘示根据本发明实施例的第二数据的结构示意图。FIG. 5C is a schematic diagram illustrating the structure of the second data according to an embodiment of the present invention.
图5D绘示根据本发明实施例的传输第一数据和第二数据的示意图。FIG. 5D is a schematic diagram of transmitting first data and second data according to an embodiment of the present invention.
具体实施方式detailed description
请参照图1，其绘示液晶显示器的驱动系统100的功能方块示意图。驱动系统100包含时序控制器TCON以及多个源极驱动器SD，其中时序控制器TCON用以控制源极驱动器SD来输出像素数据至液晶显示器的各像素单元。一般而言，为了达到快速传输数据的目的，时序控制器TCON会利用高速的数据传输接口来将数据传送至源极驱动器SD。另外，为了提高数据传输的正确率，源极驱动器SD也会回传时钟数据回复(Clock and Data Recovery；CDR)信号至时序控制器TCON。Please refer to FIG. 1 , which shows a functional block diagram of a driving system 100 for a liquid crystal display. The driving system 100 includes a timing controller TCON and a plurality of source drivers SD, wherein the timing controller TCON is used to control the source drivers SD to output pixel data to each pixel unit of the liquid crystal display. Generally speaking, in order to achieve the purpose of fast data transmission, the timing controller TCON uses a high-speed data transmission interface to transmit data to the source driver SD. In addition, in order to improve the accuracy of data transmission, the source driver SD will also return a Clock and Data Recovery (CDR) signal to the timing controller TCON.
请参照图2，其绘示时序控制器TCON所传输的数据200的结构示意图。数据200包含数据界定符号210以及数据本体220，其中数据本体220包含像素数据，而数据界定符号210则用以界定数据本体220。为进行时钟数据回复的工作，时钟的相关信息通常会放在数据界定符号210中。Please refer to FIG. 2 , which shows a schematic structural diagram of the data 200 transmitted by the timing controller TCON. The data 200 includes a data defining symbol 210 and a data body 220 , wherein the data body 220 includes pixel data, and the data defining symbol 210 is used to define the data body 220 . For clock data recovery, clock related information is usually placed in the data defining symbol 210 .
如图2所示，数据200的数据界定符号210的值固定为001，然而在高速传输数据的情况下，固定值的数据界定符号210会引起严重的电磁干扰(EMI)问题。例如，当时序控制器TCON以每秒1.4Gb的速度来传送数据时，在51.85Mhz(1.4G/27)的频率以及其倍频上会有强大的电磁辐射产生，进而引起EMI问题。As shown in FIG. 2 , the value of the data delimiter 210 of the data 200 is fixed at 001. However, in the case of high-speed data transmission, the fixed value of the data delimiter 210 will cause serious electromagnetic interference (EMI) problems. For example, when the timing controller TCON transmits data at a rate of 1.4Gb per second, there will be strong electromagnetic radiation at the frequency of 51.85Mhz (1.4G/27) and its multiplier, which will cause EMI problems.
为了解决EMI问题，本发明实施例变更数据界定符号的值，以使每笔数据的数据界定符号的值不固定，如此便能将特定频率的电磁辐射能量降低，从而解决EMI问题。In order to solve the EMI problem, the embodiment of the present invention changes the value of the data defining symbol, so that the value of the data defining symbol of each piece of data is not fixed, so that the electromagnetic radiation energy of a specific frequency can be reduced, thereby solving the EMI problem.
请参照图3A，其绘示根据本发明实施例的数据传送与接收方法300的流程示意图。数据传送与接收方法300包含数据传送阶段310和数据接收阶段320。为了方便说明起见，以下将以传送两笔数据为例来进行说明，然而本发明的实施例并不限于只传送两笔数据。Please refer to FIG. 3A , which shows a schematic flowchart of a data transmission and reception method 300 according to an embodiment of the present invention. The data transmission and reception method 300 includes a data transmission phase 310 and a data reception phase 320 . For the convenience of description, the following will take the transmission of two data as an example for illustration, but the embodiment of the present invention is not limited to the transmission of only two data.
在数据传送阶段310中，首先进行第一数据提供步骤311，以提供第一数据D1，如图3B所示。第一数据D1包含第一数据界定符号(delimiter)L1以及第一数据主体DM1，其中第一数据界定符号L1用以界定第一数据主体DM1。在本实施例中，第一数据主体DM1包含代表像素数据的多个位R0～R7、G0～G7以及B0～B7，而第一数据界定符号L1的值为001。In the data transmission stage 310, the first data providing step 311 is first performed to provide the first data D1, as shown in FIG. 3B. The first data D1 includes a first data delimiter L1 and a first data body DM1, wherein the first data delimiter L1 is used to delimit the first data body DM1. In this embodiment, the first data body DM1 includes a plurality of bits R0 - R7 , G0 - G7 , and B0 - B7 representing pixel data, and the value of the first data defining symbol L1 is 001.
接着，进行数据转换位选择步骤312，以选择第一数据主体DM1中的至少一个位来作为数据转换位T。在本实施例中，数据主体DM1的最后一个位B7被决定为数据转换位T，但本发明的实施例并不受限于此。在本发明的其他实施例中，亦可选择多个位来作为数据转换位T。另外，虽然本实施例的数据转换位选择步骤312接续于第一数据提供步骤311后才进行，但在本发明的其他实施例中，亦可预设数据转换位T的位置，再进行第一数据提供步骤311。Next, a data conversion bit selection step 312 is performed to select at least one bit in the first data body DM1 as the data conversion bit T. In this embodiment, the last bit B7 of the data body DM1 is determined as the data conversion bit T, but the embodiments of the present invention are not limited thereto. In other embodiments of the present invention, multiple bits can also be selected as the data conversion bits T. In addition, although the data conversion bit selection step 312 of this embodiment is performed after the first data providing step 311, in other embodiments of the present invention, the position of the data conversion bit T can also be preset, and then the first data conversion bit T is performed. Data provision step 311 .
然后，进行数据界定符号决定步骤313，以根据第一数据主体DM1的数据转换位T来决定下一笔数据的数据界定符号的值。在本实施例中，当数据转换位T的值为0时，不变更下一笔数据的数据界定符号的值(意即维持001)，而当数据转换位T的值为1时，将下一笔数据的数据界定符号的值变更为第一数据界定符号L1的反相值(意即为110)。Then, the data delimitation symbol determination step 313 is performed to determine the value of the data delimitation symbol of the next piece of data according to the data conversion bit T of the first data body DM1. In this embodiment, when the value of the data conversion bit T is 0, the value of the data delimitation symbol of the next piece of data is not changed (that is, 001 is maintained), and when the value of the data conversion bit T is 1, the next The value of the data delimiter of a piece of data is changed to the inverse value of the first data delimiter L1 (ie, 110).
接着，进行第二数据提供步骤314，以提供接续于第一数据D1的第二数据D2，如图3C所示。第二数据D2包含第二数据界定符号L2以及第二数据主体DM2，其中第二数据界定符号L2用以界定第二数据主体DM2。在本实施例中，第二数据主体DM1亦包含代表像素数据的多个位R0～R7、G0～G7以及B0～B7，而第二数据界定符号L2的值则根据第一数据D1的数据转换位T来决定。Next, a second data providing step 314 is performed to provide second data D2 following the first data D1 , as shown in FIG. 3C . The second data D2 includes a second data defining symbol L2 and a second data body DM2, wherein the second data defining symbol L2 is used to define the second data body DM2. In this embodiment, the second data body DM1 also includes a plurality of bits R0-R7, G0-G7, and B0-B7 representing pixel data, and the value of the second data defining symbol L2 is converted according to the data of the first data D1 bit T to decide.
然后，进行传送步骤315，以依序传送第一数据D1和第二数据D2，如图3D图所示。Then, a transmitting step 315 is performed to sequentially transmit the first data D1 and the second data D2 , as shown in FIG. 3D .
由上述说明可知，本发明实施例的数据传送阶段310根据第一数据D1的数据转换位T来决定后续第二数据D2的第二数据界定符号L2的值。当数据转换位T的值等于预设值时(在本实施例中，预设值为1)，变更第二数据界定符号L2的值，而当数据转换位T的值不等于预设值时，保持第二数据界定符号L2的值等于第一数据界定符号L1的值。由于数据转换位T的值根据像素数据而变化，故第二数据界定符号L2的值并不会固定在001，而是会在001和110两者之间变化。如此，可将电磁辐射的能量分散到其他频率上，从而降低数据传料时所产生的EMI。It can be seen from the above description that the data transmission stage 310 of the embodiment of the present invention determines the value of the second data delimiting symbol L2 of the subsequent second data D2 according to the data conversion bit T of the first data D1. When the value of the data conversion bit T is equal to the preset value (in this embodiment, the default value is 1), change the value of the second data definition symbol L2, and when the value of the data conversion bit T is not equal to the preset value , keeping the value of the second data delimiting symbol L2 equal to the value of the first data delimiting symbol L1. Since the value of the data conversion bit T varies according to the pixel data, the value of the second data defining symbol L2 is not fixed at 001, but varies between 001 and 110. In this way, the energy of electromagnetic radiation can be dispersed to other frequencies, thereby reducing EMI generated during data transmission.
另外，本发明实施例的数据界定符号决定步骤313并不受限于以第一数据界定符号L1的反相值来作为第二数据界定符号L2。在本发明的其他实施例中，只要第二数据界定符号L2的值异于第一数据界定符号L1的值即可达到降低EMI之目的。另外，虽然本实施例以两笔数据来举例说明，但本发明的实施例并不受限于此。在本发明的其他实施例中，当传输多笔数据时，可指定每一笔数据的数据主体的最后一位作为数据转换位T，以使后续数据的数据界定符号的值根据前一笔数据的数据转换位T来变化。In addition, the data delimiting symbol determining step 313 of the embodiment of the present invention is not limited to using the inverse value of the first data delimiting symbol L1 as the second data delimiting symbol L2 . In other embodiments of the present invention, as long as the value of the second data defining symbol L2 is different from the value of the first data defining symbol L1, the purpose of reducing EMI can be achieved. In addition, although the present embodiment uses two pieces of data as an example for illustration, the embodiments of the present invention are not limited thereto. In other embodiments of the present invention, when multiple pieces of data are transmitted, the last bit of the data body of each piece of data can be designated as the data conversion bit T, so that the value of the data definition symbol of the subsequent data is based on the value of the previous piece of data The data transition bit T to change.
接着，考虑数据接收阶段320。在数据接收阶段320中，首先进行第一数据接收步骤321，以接收第一数据D1并获得第一数据主体DM1的数据内容。接着，进行第二数据接受步骤322，以接收第二数据D2并获得第二数据主体DM2的数据内容。在本实施例中，第二数据接受步骤322根据数据转换位T的值来判断是否需要变更第二数据D2的第二数据界定符号L2的值。例如，第二数据接受步骤322会先判断数据转换位T的值是否为1。若判断结果为是，则将第二数据界定符号L2的值反相。若判断结果为否，则维持第二数据界定符号L2的值。因此，可正确地得到第二数据主体DM2的数据内容。Next, consider the data reception phase 320 . In the data receiving phase 320, firstly, a first data receiving step 321 is performed to receive the first data D1 and obtain the data content of the first data body DM1. Next, the second data accepting step 322 is performed to receive the second data D2 and obtain the data content of the second data body DM2. In this embodiment, the second data accepting step 322 determines whether the value of the second data defining symbol L2 of the second data D2 needs to be changed according to the value of the data conversion bit T. For example, the second data receiving step 322 will first determine whether the value of the data conversion bit T is 1 or not. If the judgment result is yes, then invert the value of the second data defining symbol L2. If the determination result is no, then maintain the value of the second data delimiting symbol L2. Therefore, the data content of the second data body DM2 can be correctly obtained.
由上述说明可知，本发明实施例的数据接收阶段320根据数据转换位T的值来判断是否需要变更第二数据D2的第二数据界定符号L2的值，以正确地得到第二数据主体DM2的数据内容。在本实施例中，由于数据转换位T为第一数据主体DM1的最后一个位B7，因此当获得第一数据主体DM1的最后一个位B7的值时，便可根据B7的值知道是否需要变更第二数据D2的第二数据界定符号L2的值。It can be seen from the above description that the data receiving stage 320 of the embodiment of the present invention judges whether it is necessary to change the value of the second data delimiting symbol L2 of the second data D2 according to the value of the data conversion bit T, so as to correctly obtain the value of the second data body DM2. data content. In this embodiment, since the data conversion bit T is the last bit B7 of the first data body DM1, when the value of the last bit B7 of the first data body DM1 is obtained, it can be known whether it needs to be changed according to the value of B7 The second data of the second data D2 defines the value of the symbol L2.
综合以上所述，本发明实施例的数据传送与接收方法300根据每一笔数据中的数据转换位T来变更下一笔数据的数据界定符号的值，以使每笔数据的数据界定符号的值不固定。因此，可大幅减轻高速数据传送时所产生的EMI状况。Based on the above, the data transmission and receiving method 300 of the embodiment of the present invention changes the value of the data delimiting symbol of the next data according to the data conversion bit T in each data, so that the value of the data delimiting symbol of each data The value is not fixed. Therefore, the EMI situation generated during high-speed data transmission can be greatly reduced.
请参照图4，其绘示根据本发明实施例的数据传输系统400的架构示意图。此数据传输系统400采用本发明实施例的数据传送与接收方法300，且应用于前述的时序控制器TCON与源极驱动器SD中。如图4所示，数据传输系统400包含传送装置410和接收装置420，其中传送装置410可设置于时序控制器TCON中，而接收装置则设置于源极驱动器SD中。传送装置410进行前述的数据传送阶段310，以将第一数据D1和第二数据D2传送至接收装置420。接收装置420则用以接收传送装置410所传送的第一数据D1和第二数据D2。在本实施例中，接收装置420可利用反相器，以根据数据转换位T的值来将二数据界定符号L2的值反相。Please refer to FIG. 4 , which shows a schematic diagram of a data transmission system 400 according to an embodiment of the present invention. The data transmission system 400 adopts the data transmission and reception method 300 of the embodiment of the present invention, and is applied to the aforementioned timing controller TCON and source driver SD. As shown in FIG. 4 , the data transmission system 400 includes a transmitting device 410 and a receiving device 420 , wherein the transmitting device 410 can be disposed in the timing controller TCON, and the receiving device can be disposed in the source driver SD. The transmitting device 410 performs the aforementioned data transmitting stage 310 to transmit the first data D1 and the second data D2 to the receiving device 420 . The receiving device 420 is used for receiving the first data D1 and the second data D2 transmitted by the transmitting device 410 . In this embodiment, the receiving device 420 can use an inverter to invert the value of the two data defining symbols L2 according to the value of the data conversion bit T.
请参照图5A，其绘示根据本发明实施例的数据传送与接收方法500的流程示意图。数据传送与接收方法500类似于前述的数据传送与接收方法300，但不同之处在于数据传送与接收方法500具有的数据转换位T包含多个位。Please refer to FIG. 5A , which shows a schematic flowchart of a data transmission and reception method 500 according to an embodiment of the present invention. The data transmission and reception method 500 is similar to the aforementioned data transmission and reception method 300 , but the difference is that the data conversion bit T of the data transmission and reception method 500 includes multiple bits.
在数据传送阶段510中，首先进行第一数据提供步骤511，以提供第一数据D1，如图5B所示。接着，进行数据转换位选择步骤512，以选择第一数据主体DM1中的多个位来作为数据转换位T。在本实施例中，数据主体DM1的最后两个位B6-B7被决定为数据转换位T。然后，进行数据界定符号决定步骤513，以根据第一数据主体DM1的数据转换位T来决定下一笔数据的数据界定符号的值。在本实施例中，当数据转换位T的值为00时，不变更下一笔数据的数据界定符号的值(意即维持001)；当数据转换位T的值为11时，将下一笔数据的数据界定符号的值变更为110；当数据转换位T的值为01时，将下一笔数据的数据界定符号的值变更为111；当数据转换位T的值为10时，将下一笔数据的数据界定符号的值变更为000。In the data transmission stage 510, the first data providing step 511 is first performed to provide the first data D1, as shown in FIG. 5B. Next, a data conversion bit selection step 512 is performed to select a plurality of bits in the first data body DM1 as data conversion bits T. In this embodiment, the last two bits B6-B7 of the data body DM1 are determined as data conversion bits T. Then, the data delimitation symbol determination step 513 is performed to determine the value of the data delimitation symbol of the next piece of data according to the data conversion bit T of the first data body DM1. In this embodiment, when the value of the data conversion bit T is 00, the value of the data delimitation symbol of the next data is not changed (that is, 001 is maintained); when the value of the data conversion bit T is 11, the next The value of the data delimitation symbol of the data is changed to 110; when the value of the data conversion bit T is 01, the value of the data delimitation symbol of the next piece of data is changed to 111; when the value of the data conversion bit T is 10, the The value of the data delimitation symbol of the next piece of data is changed to 000.
接着，进行第二数据提供步骤514，以提供接续于第一数据D1的第二数据D2，如图5C所示，其中第二数据界定符号L2的值则根据第一数据D1的数据转换位T来决定。在图5C中，第二数据界定符号L2的值以110来作为例示。然后，进行传送步骤515，以依序传送第一数据D1和第二数据D2，如图5D所示。Next, the second data providing step 514 is performed to provide the second data D2 following the first data D1, as shown in FIG. to decide. In FIG. 5C , the value of the second data defining symbol L2 is 110 as an example. Then, a transmitting step 515 is performed to sequentially transmit the first data D1 and the second data D2 , as shown in FIG. 5D .
在数据传送阶段510后，接着进行数据接收阶段520，以接收第一数据D1和第二数据D2。在数据接收阶段520中，首先进行第一数据接收步骤521，以接收第一数据D1并获得第一数据主体DM1的数据内容。接着，进行第二数据接受步骤522，以接收第二数据D2并获得第二数据主体DM2的数据内容。在本实施例中，第二数据接受步骤522根据数据转换位T的值来判断是否需要变更第二数据D2的第二数据界定符号L2的值。例如，第二数据接受步骤322会先判断数据转换位T的值是否为00。当数据转换位T的值为00时，维持第二数据界定符号L2的值。反之，当数据转换位T的值不是00时，则将第二数据界定符号L2的值转换为001。After the data transmission stage 510, the data receiving stage 520 is followed to receive the first data D1 and the second data D2. In the data receiving stage 520, firstly, a first data receiving step 521 is performed to receive the first data D1 and obtain the data content of the first data body DM1. Next, the second data accepting step 522 is performed to receive the second data D2 and obtain the data content of the second data body DM2. In this embodiment, the second data accepting step 522 determines whether the value of the second data defining symbol L2 of the second data D2 needs to be changed according to the value of the data conversion bit T. For example, the second data accepting step 322 will first determine whether the value of the data conversion bit T is 00. When the value of the data conversion bit T is 00, the value of the second data defining symbol L2 is maintained. On the contrary, when the value of the data conversion bit T is not 00, the value of the second data defining symbol L2 is converted to 001.
具体而言，当数据转换位T的值为11时(此时第二数据界定符号L2的值为110)，将第二数据界定符号L2的值反相，以将第二数据界定符号L2值转换为001；当数据转换位T的值为01时(此时第二数据界定符号L2的值为111)，将第二数据界定符号L2的头两个位反相，以将第二数据界定符号L2值转换为001。当数据转换位T的值为10时(此时第二数据界定符号L2的值为000)，将第二数据界定符号L2的最后一个位反相，以将第二数据界定符号L2值转换为001。因此，可正确地得到第二数据主体DM2的数据内容。Specifically, when the value of the data conversion bit T is 11 (at this time, the value of the second data defining symbol L2 is 110), the value of the second data defining symbol L2 is inverted so that the value of the second data defining symbol L2 Converted to 001; when the value of the data conversion bit T is 01 (at this time, the value of the second data defining symbol L2 is 111), the first two bits of the second data defining symbol L2 are inverted to define the second data The symbolic L2 value translates to 001. When the value of the data conversion bit T is 10 (the value of the second data defining symbol L2 is 000 at this time), the last bit of the second data defining symbol L2 is reversed, so that the second data defining symbol L2 value is converted into 001. Therefore, the data content of the second data body DM2 can be correctly obtained.
由上述说明可知，本发明实施例的数据传送阶段510根据第一数据D1的数据转换位T来决定后续第二数据D2的第二数据界定符号L2的值。由于数据转换位T的值根据像素数据而变化，故第二数据界定符号L2的值并不会固定在001，而是会在001、110、000、111四者之间变化。如此，可将电磁辐射的能量分散到其他频率上，从而降低数据传料时所产生的EMI。It can be seen from the above description that the data transmission stage 510 of the embodiment of the present invention determines the value of the second data delimiting symbol L2 of the subsequent second data D2 according to the data conversion bit T of the first data D1. Since the value of the data conversion bit T varies according to the pixel data, the value of the second data defining symbol L2 is not fixed at 001, but varies between 001, 110, 000, and 111. In this way, the energy of electromagnetic radiation can be dispersed to other frequencies, thereby reducing EMI generated during data transmission.
值得一提的是，本发明的实施例并不受限于像素数据的传输。本领域技术人员当可知本发明实施例的数据传送与接收方法以及数据传输系统可适用于任何高速数据传送系统，以解决由固定数据界定符号所引起的EMI问题。It should be noted that the embodiments of the present invention are not limited to the transmission of pixel data. Those skilled in the art will know that the data transmission and reception method and the data transmission system of the embodiments of the present invention are applicable to any high-speed data transmission system to solve the EMI problem caused by fixed data delimitation symbols.
虽然本发明已以数个实施例揭露如上，然其并非用以限定本发明，本领域技术人员在不脱离本发明的精神和范围内，当可作各种的更动与润饰，因此本发明的保护范围当视所附的权利要求为准。Although the present invention has been disclosed above with several embodiments, it is not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection should be subject to the appended claims.
| Application Number | Priority Date | Filing Date | Title |
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| CN201410228067.0ACN105139812B (en) | 2014-05-27 | 2014-05-27 | Data transmitting and receiving method and data transmission system |
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| CN201410228067.0ACN105139812B (en) | 2014-05-27 | 2014-05-27 | Data transmitting and receiving method and data transmission system |
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| CN105139812Btrue CN105139812B (en) | 2018-01-30 |
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| CN201410228067.0AActiveCN105139812B (en) | 2014-05-27 | 2014-05-27 | Data transmitting and receiving method and data transmission system |
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