TWI229552B - Method and device for image data transmission - Google Patents

Abstract

The present invention relates to a method and device for image data transmission. With a connection between an image processor and a display device, a CPU directly issues a command to notify the image processor to directly transmit image data to the display device without a step of temporarily storing image data and transmitting the image data to the display device via the CPU. As such, the image data of the image processor can be directly transmitted to the display device without passing through the CPU. Therefore, the transmission of image does not require the CPU so as not to occupy the resource of CPU, thereby increasing the overall performance of the system, decreasing the load in using memory and reducing the power consumption.

Description

1229552 V. Description of the invention α) [Technical field to which the invention belongs] The present invention relates to a data transmission method and device applied to an image, and particularly to a method and device for transmitting image data, which provides a direct transmission of image data Device and method for reaching a display device without going through a central processing unit. [Previous technology] According to the booming 3G industry in recent years, competition in wireless devices has become increasingly tense. Therefore, the development of the industry and the improvement of technology are more important. Recently, mobile phones have been developed for the field of image capture. The disadvantages of the display of image data have not been solved, such as: delay or interruption. Generally, when the image signal is transmitted to the display device, the image data must be read through the central processing unit in advance and given to the display device during transmission, see the first figure. , Which is a block diagram of a conventional image transmission; as shown in the figure, the traditional device mainly includes a display device 10 ', a central processing unit 20', a memory device 3 ', and an image processor 40' And the image sensor 50 ′, when the CPU 20 ′ reads the image data of the image processor 40 ′, it will temporarily store it in the memory device 30 ′, and the current wireless device is For example, in general, the processing sequence of the central processing unit 20 'is based on receiving signals. At this time, if image data needs to be transmitted at the same time, the central processing unit 2' will cause the transmission Speed image data of the slowing or interrupted, this time, the image will be delayed or interrupted, affecting the image quality and speed of information appear. Furthermore, please refer to the second figure, which is a block diagram of another conventional image transmission; as shown in the figure, an auxiliary processor 60 'is added at this time to increase the performance of the central processing unit and share the central processing unit. Load, but this

Page 5 1229552 V. Description of the invention (2) The system for improving energy efficiency is complete. The development of the display device helps the industry to assist in the production of supplementary products. But the image of the image is displayed on the display. The new image of the Yingying image should be uniformly transmitted. The upper pair of needles and the method of how to do it. The loss of this material is due to the fact that the number of years of use of materials is mostly from Zhiji, who has a long history and his own strength is low. The lack of books and the high hopes and eagerness of the eagerness, and those who think and plan, set up a research and development business to sell more distribution, and knowledge, knowledge and hair industry to open a professional, research and research The quality of the product is poor, and the things that matter to one's mind are good. From the modification and the transfer of materials to the French, the image is based on the answer to the questions and questions. Nei Liangliang explored and re-issued the title to display the material, the material, the material, the image, the image, the image, the image, the image, the image, the image, the image, the image, and the image. Pass the law to reduce the loss of your side, and set a high-load prompt can significantly effect the donor loses the whole 5 pay Straightforward, material loss, cost, image source, shadow, and other factors will directly deal with the order. , Yangliang connected with the China Power Company: The installation and display of materials with less material consumption are shown in the materials and materials, and the image is quickly increased in the Ming Dynasty. In the development method, the quality and brightness of the product are displayed on the display of the material used in the application ce »:. Species 1 for the storage and transfer of the temporary access to the direct memory of the material for the record The shadow maker's single device? .1 ίιίι Everywhere, like the central film, the system will be completely transparent, and it will be installed without installation, and the installation method will be displayed and transmitted to the lower body, and the memory expansion will be used without using it. Mind less and less. Capital like into shadow-low

Page 6 12295552 V. Description of the invention (3) The transmission method of the present invention and the display device are installed without a processor, so that the present invention is input to the display device and the display device is connected to the material and then passed to the display order. Yet another object is to provide a first-class cable central processing power consumption method through the system] In order to further explain the invention, its control sink does not require a source during transmission, so as to reduce and reduce the implementation of the present invention. Will set, it needs to be upgraded to a straight device and connection through low and medium cost. The controller of the device does not show the floating of the central processing unit. The overall performance of this unit directly central processing unit refers to a central processing and competition method. It is necessary to pass steps, such as data unit and time, to transfer the image to the element, so that it can directly improve the power of XJXJ-. The main central part of the image processing is directly transmitted by the direct display display. The image processing display is not occupied, and the reduced type is applied to the image. # The image data is directly transmitted to the camera, so there is no need to use it again. Yuanxian's central processing wheel is used to display the image of the data set. You can use the center to use less image data transfer processor and temporary image data. Next device, and the bus line and data can not be imaged. The performance of the asset recall system in the Chuanliu unit is directly manifested by the central processing unit. This is the phenomenon. The CBRC's understanding and understanding of the structural features and steps of this description are to be reached with more weight, as explained later: The embodiment and the system provide a better image display device and image data directly transmitted to a display device. The method can transmit the image in real time without transmitting the image on the display device. ^ 彡 In terms of image resources, the appearance of the day can be improved.

Page 7 1229552 V. Description of the invention (4) High overall efficiency, on the one hand, it can reduce the requirements on hardware to reduce costs, such as memory and auxiliary processors. Please refer to the third figure, which is an image transmission flowchart of a preferred embodiment of the present invention. As shown in the figure, the present invention provides a method for directly transmitting image data to a display device without going through a central processing unit. The main steps include at least: step 10, setting the size and position of an image data of an image displayed on the display device in advance, step 20, the central processing unit setting a data bus line connected to the display device And a control bus is floating; step 30, the central processing unit sends a message to notify an image processor to send the image data to the display device; and, step 40, the image processor directly transmits the image Data to the display device. Wherein in step 10, the size and position of an image data displayed on the display device through the preset setting may be set by a central processing unit or an image processor; in step 20, its floating connection is through a Controlled by a software program, and in step 30, the central processing unit sends a message, where the message can be a specific signal uploaded by a signal line or a software registration action. Please refer to the fourth figure, which is a schematic block diagram of a preferred embodiment of the present invention. As shown in the figure, the device for transmitting and transmitting image data to a display device according to the present invention mainly includes at least a display device 100 , Which is a user for displaying an image data; a central processing unit 2000, the central

Page 81229552 _ ----- V. Description of the invention (5) The processing unit 2 00 is connected to the display device 1 0; and an image processor 3 0, the image processor 3 〇〇 system is connected to the display device 1000 and the central processing unit 2000.

▲ Among them, the Hai display device 100 series is a TFT, STN or OLED; furthermore, the Haizhong processing unit 2 00 includes a memory device 2 10, and the middle = place, single The U2000 series may be a DSP; and the image processor 300 series includes an image sensor 310, the image sensor is a CCD or CMOS / Central Processing Unit and the display device. And the image processor's connection line 400, which includes-a control bus line and a data bus line, and the connection between the $ 5 unit and the display device and the image sensor can be a ministry t ^ The case where t, L parallel cables and control bus cables are connected in parallel 'because' the central processing unit is 16 bits and the image processor and display device are each 8 bits. The parallel connection unit only uses the central processing unit 8 bits. Ben Laming is designed to reduce the load of the central processing unit 2000, thereby improving the quality of the daytime display, and to improve the disadvantages of delaying or stopping the presentation of image data through the central processing unit 200 transmission wheel. The method of the invention 'can also be used on traditional devices, only a small modification is needed, for example: when the central processing unit instructs the display device to transmit image data and display device', an instruction can be added to notify the image processor, At the same time, another instruction is added to float the data bus line and control bus line of the central processing unit and the display device, which is compatible with the old system and can also be received from the image processor in the old way. The image is transmitted to the display, and all the choices of image data transmission depend on the central processing unit. Please refer to the fifth figure, which is the clock of a preferred embodiment of the present invention.

Page 9 12295552 V. Description of the invention (6) Figure; as shown in the figure, at T1, CS starts to act when it is at a low potential, and Enable (Enable) does not act at a low potential. At T2, CS is at a low level At this time, the “Enable” can be at a high potential, and the image data starts to be transmitted from the image processor to the display device. The actions of T3 and T4 are the same as those of T2. At T5, the enable is transmitted when the enable is at a low potential. Interruption; this is one of the methods for transmitting image data in the present invention, and is not intended to limit the scope of the present invention. Please refer to the sixth, seventh, and eighth diagrams, which are block diagrams of the c 1 ock connection method of the present invention, in which the cs pin can be moved to another control bus, and the seventh The picture shows that the central processing unit sends the "clock signal" (CLOCK signal) to the image processor, and the reference processor sends the "CLOCK" signal to the display device. The processor and the central processing unit are aligned with each other. CLOCK ”. The eighth picture shows the central processing unit transmitting the“ CLOCK ”signal to the input and bit of the image processor and display device. The purpose is“ CLOCK ”. The wiring is only input by the central processing unit when the image processor and the central processing unit are transmitting image data. ~ M CLOCK11 〇 ^ step lit 'ΪThe Cl0Ck output pin of the central processing unit is connected to the clock of the display. The input pins are connected, and the output pin of the image processing wheel is connected to the input pins of the display device cloc: The transmission of the cck signal is transmitted by the clock signal of the central processing unit. M The image The signal of the controller ’s ciock is transmitted to the display = device (as shown in the sixth figure). Ji Yi #-λ ^ 1229552 V. Description of the invention (7) The c 1 ock output pin of the processor is related to The input pin of c 1 ck of the image processor is connected, and the output pin of c 1 ck of the image processor is connected to the input pin of c 1 ck of the display device, and the signal transmission is performed by the The output signal of c 1 ock of the central processing unit is transmitted to the image processor, and the output signal of c 1 ock of the image processor is transmitted to the display device (as shown in the seventh figure): and another signal Connection method: The c 1 ck output pin of the central processing unit is connected to the c 1 ck input pin of the display device and the c 1 ock input pin of the image processor, and its signal transmission is performed by the central The signal of c 1 ock of the processing unit is transmitted to the display device and the image processor (as shown in Figure 8). To sum up, the present invention is truly novel, progressive and available for industrial users. It should meet the patent application requirements stipulated by the Chinese Patent Law. No doubt, the invention patent application was filed in accordance with the law. , I feel the prayer. However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of implementation of the present invention. For example, changes in shape, structure, characteristics, and spirit according to the scope of the patent application for the present invention are equivalent. Modifications should be included in the scope of patent application of the present invention. [Simplified description of drawing numbers] 1 0 'display device 2 0' central processing unit 3 0 'memory device 4 0' image processor 5 0 'image sensor

Page 11 1229552 V. Description of the invention (8) 6 0 'Auxiliary processor 1 0 0 Display device 2 0 0 Central processing unit 2 1 0 Memory device 3 0 0 Image processor 3 1 0 Image sensor 4 0 0 Connection line

Page 122952 'Schematic description of the first picture: it is a block diagram of a conventional image transmission; second picture: it is a block diagram of another conventional image transmission; third picture: it is the invention A flowchart of image transmission in a preferred embodiment; FIG. 4 is a block diagram of a preferred embodiment of the present invention; FIG. 5 is a diagram of a preferred embodiment of the present invention Pulse diagram; sixth diagram: it is a block diagram of a clock connection method of the present invention; seventh diagram: it is a block diagram of another clock connection method of the present invention; and eighth diagram: it is this Block diagram of another c 1 ock connection invented.

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Claims (1)

1229552 VI. Scope of Patent Application 1 · A data transmission method applied to an image, which is a method of directly transmitting an image data to a display device. The main steps include at least: one of the images displayed on the display device through a preset setting. Image data size and location; a central processing unit sets at least one data bus and at least one control bus connected to the display device to be floating; the central processing unit sends a message to notify an image processor to send the image Data to the display device; and the image processor directly sends the image data to the display device. 2 The data transmission method as described in item 1 of the scope of patent application, wherein the floating connection is controlled by a software program. 3. The data transmission method according to item 1 of the scope of patent application, wherein the step of transmitting a message at the central processing unit is a specific signal that can be uploaded for a signal line. 4 · The data transmission method described in item 1 of the scope of patent application, wherein the central processing unit sends a message first, and the message can be a software registration action. 5. The data transmission method according to item 1 of the scope of patent application, wherein the size and position of an image data set in advance on the display image of the display device can be set by a central processing unit. 6. The data transmission method as described in item 1 of the scope of patent application, wherein the size and position of an image data set in advance on the display image of the display device can be set by an image processor. Page 141229552 6. Application patent scope 7 · The data transmission method described in item 1 of the patent application scope, wherein the clock signal of the central processing unit is transmitted to the display device or the clock signal of the image processor To the display device. 8. The data transmission method according to item 1 of the scope of patent application, wherein the clock signal of the central processing unit is transmitted to the image processor, and the clock signal of the image processor is transmitted to the display device. 9 The data transmission method as described in item 1 of the scope of patent application, wherein the clock signal of the central processing unit is transmitted to the display device and the image processor. 1 0 · A data transmission device applied to an image, which mainly includes at least: a display device, which is a user who displays an image data; a central processing unit, which is connected to the display device And an image processor, the image processor is connected to the display device and the central processing unit. 1 1 · The data transmission device described in item 10 of the scope of patent application, wherein the display device is an active matrix liquid crystal display (TFT). 1 2 · The data transmission device as described in item 10 of the scope of patent application, wherein the display device is a super-twisted nematic liquid crystal display (STN). 1 3. The data transmission device as described in item 10 of the scope of patent application, wherein the display device is an organic electroluminescent display (OLED). 14 · The data transmission device according to item 10 of the patent application scope, wherein the central processing unit includes a memory device. Page 15 1229552 VI. Scope of patent application 15 · The data transmission device as described in item 10 of the scope of patent application, wherein the central processing unit is a digital signal processor (DSP). 16 · The data transmission device as described in item 10 of the scope of patent application, wherein the central processing unit is a central processing unit (CPU). 17 · The data transmission device described in item 10 of the scope of patent application, wherein the central processing unit is a system-on-chip (SoC) 1 8 · The data transmission device described in item 10 of the scope of patent application, wherein the central processing unit is a digital camera controller (Digita 1 S ti 1 1 Camera Controller) o 1 9 · The data transmission device according to item 10, wherein the central processing unit is a baseband processor. 〇 2 0 The data transmission device according to item 10 of the patent application scope, wherein the image processor The system includes an image sensor. 2 1 · The data transmission device described in item 20 of the scope of patent application, wherein the image sensor is a charge coupled device (CCD). 2 2 · The data transmission device as described in item 20 of the patent application scope, wherein the image sensor is a complementary metal oxide semiconductor (CMOS). 2 3 · The data transmission device as described in item 10 of the scope of the patent application, wherein the connection lines of the display device, the central processing unit and the image processor include at least one control bus line and at least one data bus line. 2 4 · The data transmission device as described in item 23 of the scope of patent application, wherein the central processing unit, the display device and the image processor are part of the data Page 16