TWI533633B - Device and program of wireless transmission system - Google Patents

Description

Wireless transmission system device and program thereof

The present invention relates to a wireless transmission system, and more particularly to a device and a program thereof for a wireless transmission system that transmits light through visible light.

Since electronic devices such as notebook computers, tablet computers, or smart phones have become quite popular, users can use electronic devices to transmit or exchange data at any time, and electronic devices often use conventional amplitude modulation, frequency modulation, or infrared light. Wireless microwave transmission is used for data transmission. However, the use of wireless microwave transmission often results in slow data transmission due to its bandwidth limitation, which takes a long time to transmit, and when using wireless microwave transmission, the electronic device must consume additional transmission. Power, in the case of limited power and multiple operations at the same time, the extra power consumption is easy to cause the electronic device to be unable to transmit data due to insufficient power at any time, which greatly increases the inconvenience of the user.

Taiwan Patent Publication No. 201237802 discloses an embedding device for adjusting the brightness and the like (shading difference) of each pixel in an input image, and recognizing that the device obtains an adjusted image through a camera mechanism; Taiwan Patent No. 201120769 discloses a non- The contact type communication device captures another non-contact communication device for displaying image data to identify whether the image data contains predetermined information within a range or position of a user-defined appearance shape; U.S. Patent No. 7,199348 discloses A digital camera having a plurality of photodetector arrays, each of which can sample the intensity of light of a particular wavelength at a particular integration time.

The invention provides a device and a program thereof for a wireless transmission system, which can achieve the purpose of transmitting archive data without additionally increasing the power of transmitting the archive data.

Other objects and advantages of the present invention will become apparent from the technical features disclosed herein.

In one embodiment, the present invention provides a display device for a wireless transmission system, which is adapted to transmit a file through visible light, and the display device includes an encoding. Module and a display module. The coding module is configured to receive the archive data and the plurality of external image data, and convert the archive data into a plurality of periodic transmission data according to the sequence, and transmit the external image data according to the cyclic transmission data to generate the plurality of sequentially. The image transmission data is coupled to the display module, and the display module is configured to receive the image transmission data and display the image transmission data. The sum of the visible light energy intensity values of each external image data in a signal period and the image transmission data generated after the modulation of the corresponding external image data are the same as the sum of the visible light energy intensity values in the signal period, and the signal period can be divided into multiple Unit signal period.

In another embodiment, the present invention provides a camera device for wireless transmission system, which is adapted to receive a file through visible light, and includes a shooting module and a decoding module. The shooting module is configured to capture image transmission data displayed by the display device and generate a plurality of image receiving materials, the shooting module is connected to the decoding module, and the decoding module is configured to receive the image receiving. Data, and sequentially convert these image receiving data into multiple periodic receiving materials, and receive data according to these cycles to generate archival materials.

In another embodiment, the present invention provides a display program for a wireless transmission system, which is adapted to be executed by a computer loading program and transmits a file through visible light through a display module, which includes program instructions (a), in order Converting archive data into multiple periodic transmission data, and program instruction (b), transmitting data according to these cycles, modulating multiple external image data, sequentially generating multiple image transmission materials, and maintaining each external image data in a signal cycle The sum of the visible light energy intensity values in the sum is the same as the sum of the visible light energy intensity values in the signal period corresponding to the corresponding image transmission data.

The present invention is directed to a display program of the wireless transmission system, which is adapted to be executed by a computer loading program and receive a file through visible light through a shooting module, which includes the following The program instruction: the program instruction (c) converts the foregoing image receiving data into a plurality of periodic receiving materials in sequence, and the program instruction (d), and receives the data according to the cycle to generate the foregoing file data.

According to the above, after the file data to be transmitted is first converted into a plurality of periodic transmission data, the external image data is modulated according to the data transmission to generate a plurality of image transmission materials, and the images are transmitted. The data is transmitted to the display module display, and the image capturing device only needs to accumulate the sum of the visible light energy intensity values according to the unit signal period according to the image receiving data generated by the captured image transmitting data, thereby decoding the file data to be received. And the sum of the visible light energy intensity values in the signal period of each external image data and the image transmission data generated after the modulation of the corresponding external image data are the same as the sum of the visible light energy intensity values in the signal period. Therefore, the display module only needs to play the modulated image transmission data, and does not need to additionally increase the work of transferring the archive data. Rate, the purpose of transmitting the archive data can be achieved, and the modulated image transmission data remains the same as the sum of the visible light energy intensity values before the modulation during the signal period, so that the user's visual experience can be improved without affecting the user's visual experience. Transfer the archives. In addition, according to the user's requirement, the data received by each period can be transmitted through fewer pixels to improve the data transmission speed, or the transmission of more pixels can be used to improve the success rate of data transmission.

The above described features and advantages of the invention will be apparent from the following description.

100‧‧‧ display device

110‧‧‧Code Module

111‧‧‧Sequence Controller

120‧‧‧ display module

200‧‧‧Photographing device

210‧‧‧ Shooting module

220‧‧‧Decoding module

221‧‧‧ timing controller

300‧‧‧External signal source

FIG. 1 is a schematic structural diagram of a wireless transmission system according to an embodiment of the present invention.

2(a) is a flow chart of a display program according to an embodiment of the present invention.

2(b) is a flow chart of a photographing program according to an embodiment of the present invention.

Fig. 3 (a) is a schematic view showing another embodiment of the image transmission data of the present invention.

FIG. 3(b) is a schematic diagram of another embodiment of the image transmission data of the present invention.

4(a) is a schematic view showing another embodiment of the display module of the present invention.

4(b) is a schematic view showing another embodiment of the imaging module of the present invention.

Figure 5 (a) is a schematic diagram of another embodiment of the image transmission data of the present invention.

Figure 5 (b) is a schematic diagram of another embodiment of the image transmission data of the present invention.

Figure 6 (a) is a schematic view showing another embodiment of the image transmission data of the present invention.

Figure 6 (b) is a schematic diagram of another embodiment of the image transmission data of the present invention.

The foregoing and other technical contents, features and effects of the present invention will be described in the following detailed description of a preferred embodiment of the reference drawings. Can be clearly presented. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a wireless transmission system according to Embodiment 1 of the present invention. A display device 100 is adapted to transmit a file through visible light, which may be a liquid crystal display, a plasma display, a diode display, or the like. The display device 100 further includes an encoding module 110 and a display module 120. The encoding module 110 is connected to the display module 120. The encoding module 110 is configured to receive audio, text, images and other file data and a plurality of external image data from an external signal source 300. The external image data may be a piece of video data, movie data or program material. Since the displayed image is assembled by the at least one display pixel on the display module 120, each of the external image data includes the display content of the at least one display pixel. If there is only one illuminator for each display pixel, the display content of the display pixel is the sum of the visible light energy intensity values required by the display pixel; however, in many practical products, each display pixel may include more Each of the sub-pixels provides a light source of each solid color for display. The display content of the display pixel is the sum of the light energy intensity values of the sub-pixels in the display pixel. Taking a display pixel including red (R), green (G), and blue (B) sub-primary sub-pixels as an example, the display content of one display pixel includes the sum of visible light energy intensity values and green primary colors emitted by the red primary sub-pixels. The sum of the visible light energy intensity values required for the sub-pixels, and the sum of the visible light energy intensity values required for the blue primary sub-pixels. The invention does not limit the display pixel to a single display pixel or to include multiple sub-pixels.

The encoding module 110 further includes a timing controller 111 for encoding The module 110 can convert the file data into a plurality of periodic transmission data in a sequence, wherein the data amount is one bit per cycle, and the bit is used to indicate the state of 0 or 1. The encoding module 110 converts the received file data into a plurality of periodic transmission data, and then transmits the external image data corresponding to the data modulation according to each cycle. In this embodiment, a signal period can be divided into a plurality of unit signal periods, so that the encoding module 110 can transmit the sum of the visible light energy intensity values of the external image data corresponding to the data modulation in the unit signal period according to each period. To generate information for displaying images for display. After the encoding module 110 generates the image transmission data, the image transmission data is transmitted to the display module 120 for display. The display module 120 can have a plurality of display pixels and can simultaneously display image transmission data of a plurality of file data. The visible light energy intensity value may be represented by a gray scale value, and the sum of visible light energy intensity values of each of the external image data in a signal period and the image transmission data generated after the modulation of the corresponding external image data are within the signal period. The sum of visible light energy intensity values is the same.

Embodiment 1 further includes a photographing device 200 adapted to receive archival material through visible light, which may be a lens device disposed on a mobile device, a notebook computer or a tablet computer. The photographing device 200 includes a photographing module 210 and a decoding module 220. The photographing module 210 has a plurality of photographing pixels, which may be a charge-coupled device (CCD) or a complementary metal oxide semiconductor active pixel. A photosensitive element such as a CMOS active pixel sensor is used to capture image transmission data displayed by the display device 100, and to generate image reception data, and the imaging module 210 is connected to the decoding module 220. The decoding module 220 is configured to receive image receiving data, and further has a timing controller 221, so that the decoding module 220 can accumulate image receiving data in each unit according to the foregoing sequence. The sum of the visible light energy intensity values in the number period is converted into periodic reception data, and the decoding module 220 receives the data according to the plurality of cycles of the conversion to generate the foregoing file data.

2(a) and 2(b) are two embodiments of the present invention. Referring to FIG. 2(a), FIG. 2(a) is a flowchart of a display program of the second embodiment, where the display program can be loaded. The computer includes the following steps: Step S21, the computer loading the display program first converts one of the file data to be transmitted into a plurality of cycles to transmit the data. In these periodic transmissions, the amount of data transmitted in each cycle is one-bit and is used to indicate the state of 0 or 1. In step S22, it is judged that the periodic transmission data to be transmitted is 0 or 1, and if the periodic transmission data is 0, step S23 is performed, otherwise step S24 is performed. If it is determined that the periodic transmission data is 0 and step S23 is performed, the encoding module 110 of FIG. 1 maintains the sum of the visible light energy intensity values of the corresponding external image data in an original state, that is, does not sum the visible light energy intensity values of the external image data. If the determination is that the periodic transmission data is 1, the step S24 is performed, and the encoding module 110 allocates the sum of the visible light energy intensity values of the corresponding external image data evenly among the plurality of unit signal periods. The foregoing external image data and file data are received by the external signal source 300 described in FIG. 1 . The encoding module 110 performs step S23 or step S24 and then performs step S25, that is, correspondingly generates an image transmission data, and the computer transmits the image transmission data to the display module 120 shown in FIG. 1 for display, as shown in step S26. In step S27, the computer determines whether the plurality of periodic transmission data converted by the foregoing file data has been transmitted. If the transmission has not been completed, the process returns to step S22 to continue transmitting the data for the next cycle, and conversely, the process of displaying the program ends.

Please refer to FIG. 2(b), and FIG. 2(b) is the flow of the shooting program of the second embodiment. The shooting module 210 is loaded into the computer and includes the following steps: in step S31, the shooting module 210 of FIG. 1 is used to capture and receive the image transmission data displayed by the display module 120, and According to the output of an image to receive data. In step S32, the decoding module 220 of FIG. 1 calculates the sum of the visible light energy intensity values of the received image receiving data in each unit signal period, and after the calculation is completed, proceeds to step S33. In step S33, the decoding module 220 determines whether the sum of the light energy intensity values of the image receiving data is evenly distributed in each unit signal period according to the sum of the visible light energy intensity values of each unit signal period according to the image receiving data, that is, each time Whether the sum of visible light energy intensity values in a unit signal period is the same. If the sum of the visible light energy intensity values in each unit signal period is not the same, that is, the sum of the visible light energy intensity values of the unit signal period is not evenly distributed in each unit signal period, the determination period receiving data is 0, as in the step. S34; If the sum of the visible light energy intensity values in each unit signal period is the same, that is, the sum of the visible light energy intensity values of the unit signal period is evenly distributed in each unit signal period, the determination period receiving data is 1, as in step S35. When the decoding module 220 performs step S34 or step S35, step S36 is executed, that is, the content of the foregoing archival data is decoded according to the plurality of periodic received data received in sequence.

Referring to FIG. 3( a ), FIG. 3( a ) is a schematic diagram of the first embodiment of the image transmission data, which is a sum of visible light energy intensity values in a signal period (T in this embodiment). The signal period consists of 2 unit signal periods and can be divided into a first unit signal period (1/2T on the left side of the figure) and a second unit signal period (1/2T on the right side of the figure). The image transmission data further includes a first sub-pixel (R), a second sub-pixel (G), and a third sub-pixel (B), and the sum of visible light energy intensity values is not evenly distributed in each unit signal period. Figure 3 (b) is the second embodiment of the image transmission data, the sum of visible light energy intensity values The light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) are equally distributed in each unit signal period. .

Please refer to FIG. 4( a ). FIG. 4( a ) is a schematic diagram of an embodiment of the foregoing display module 120 . In this embodiment, the display module 120 is a 2x2 display pixel, which includes I, II, III, and IV display pixels, but is not limited thereto, and is used to display the image transmission materials described above, and each The display pixels can display the image transmission data of different file materials, so the image transmission materials of the four different file materials can be transmitted at the same time. FIG. 4(b) is a schematic diagram of an embodiment of the foregoing shooting module 210. In this embodiment, the pixel is 4×4, and the display module 120 can be divided into regions I, II, III, and IV, but not The imaging module 210 transmits the data by using the image displayed by the shooting module 120. Each display pixel of the display module 120 corresponds to the first pixel (i) and the second of the shooting module 210. The pixel (ii), the third pixel (iii), and the fourth pixel (iv), for example, the display pixel I of the display module 120 corresponds to the first pixel (i) and the second pixel (ii) of the region I of the imaging module 210. ), the third pixel (iii) and the fourth pixel (iv), but not limited thereto. The single parsing pixel of the display module 120 can also correspond to two shooting pixels or three shooting pixels of the shooting module 210. Hereinafter, the single parsing pixel of the display module 120 corresponds to two or three of the shooting module 210. Or four embodiments of shooting pixels. In another embodiment of the present invention, the regions I, II, III, and IV of the display module 120 may each include a plurality of pixels. For example, the display module 120 may be a 4×4 display pixel, and the regions I, II, III, and IV respectively include 2×2 pixels, and the corresponding shooting module 210 is 8×8 pixels, and can be divided into four groups of 4×4 shooting pixels, and each group of 4×4 shooting pixels can correspond to one 2×2 pixel area of the above display module 120. The encoding module 110 can pass through each signal cycle. Each 2x2 display pixel area transmits a plurality of periodic transmission data to the same 0 or 1 state, and correspondingly generates image transmission data for each display pixel, and the decoding module 220 of the shooting module 210 is targeted for each The set 4x4 shooting pixels receive the sum of the visible light energy intensity values of the four display pixels of the 2x2 pixel area of the display module 120, and decode the values, and determine that the period receiving data is 0 or 1. Since the data received by each cycle of the embodiment is transmitted through the 2x2 pixel of the display module, a larger error value can be tolerated than the mode of transmitting only through a single pixel, thereby improving the success rate of data transmission. Therefore, according to the user's requirement, the receiving data can be transmitted through fewer pixels in each cycle to increase the data transmission speed, or can be transmitted through more pixels to improve the success rate of data transmission.

In the third embodiment of the present invention, one display pixel of the display device 100 can correspond to two shooting pixels of the capturing device 200: the second pixel (ii) and the third pixel (iii), but not limited thereto, the second pixel (ii) and the third pixel (iii) are used to calculate the sum of visible light energy intensity values for different unit signal periods.

Therefore, when the display pixels of the display device 100 display the image transmission data, as shown in FIG. 3(a) or FIG. 3(b), the second pixel (ii) and the third pixel (iii) of the imaging device 200 receive the display device 100. The displayed image transmits data and generates image receiving data, and the decoding module 220 accumulates the first sub-pixel (R), the second sub-pixel (G), and the third image received by the second pixel (ii). The sub-pixel (B) sums the visible light energy intensity values of the first unit signal period, and the decoding module 220 accumulates the first sub-pixel (R) and the second sub-pixel (G) for the image receiving data received by the third pixel (iii). And the sum of the visible light energy intensity values of the third sub-pixel (B) in the second unit signal period, and comparing the sum of the visible light energy intensity values of the first sub-pixel (R) of the first unit signal period and the second unit signal period , the first unit signal period and the second sub-pixel of the second unit signal period (G) The sum of the visible light energy intensity values and the sum of the visible light energy intensity values of the third sub-pixel (B) of the first unit signal period and the second unit signal period. Alternatively, in another embodiment, the sum of the total visible light energy intensity values of the first, second, and third sub-pixels in the first unit signal period and the second unit signal period may be directly compared; or, in another implementation In an example, only the sum of the respective visible light energy intensity values or the total visible light energy intensity values of one or both of the first, second, and third sub-pixels may be compared.

Therefore, if the display device 100 wants to transmit data in a period in which the bit is 0, the image transmission data is as shown in FIG. 3(a), and in FIG. 3(a), the first sub-pixel (R) is in the first unit signal. The sum of the visible light energy intensity values of the period is 25%, the sum of the visible light energy intensity values of the second unit signal period is 0%, and the sum of the visible light energy intensity values of the second sub-pixel (G) in the first unit signal period is 50%, The sum of the visible light energy intensity values of the two unit signal periods is 0%, the sum of the visible light energy intensity values of the third sub-pixel (B) in the first unit signal period is 50%, and the sum of the visible light energy intensity values of the second unit signal period is 25 %, therefore the sum of the visible light energy intensity values accumulated in the first unit pixel period (R), the second sub-pixel (G), and the third sub-pixel (B) in the first unit signal period and the visible light accumulated in the second unit signal period The sum of the energy intensity values is different. Therefore, the decoding module 220 can determine that the sum of the visible light energy intensity values of the received image received data is not evenly distributed in the first unit signal period and the second unit signal period, and thus is received. It The period receiving data bit is 0.

If the display device 100 wants to transmit data in a period of 1 bit, the image transmission data is as shown in FIG. 3(b), and in FIG. 3(b), the first sub-pixel (R) is in the first unit signal period. The sum of the visible light energy intensity values is 12.5%, the sum of the visible light energy intensity values of the second unit signal period is 12.5%, and the visible energy of the second sub-pixel (G) in the first unit signal period is strong. The sum of the degrees is 25%, the sum of the visible light energy intensity values of the second unit signal period is 25%, and the sum of the visible light energy intensity values of the third sub-pixel (B) in the first unit signal period is 37.5%, and the second unit signal period is The sum of the visible light energy intensity values is 37.5%, so the sum of the visible light energy intensity values accumulated by the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) in the first unit signal period is The sum of the visible light energy intensity values accumulated in the two unit signal periods is the same, so that the decoding module 220 can determine that the sum of the visible light energy intensity values of the received image received data is evenly distributed to the first unit signal period and the second unit signal. During the period, the received data bit is therefore received by the received bit. After receiving the data for a plurality of cycles, the decoding module 220 decodes the content of the foregoing file data according to the received data received by the decoding module.

In the fourth embodiment of the present invention, one display pixel of the display device 100 may correspond to three shooting pixels of the capturing device 200: a first pixel (i), a second pixel (ii), and a third pixel (iii), but The second pixel (ii) and the third pixel (iii) are the same as the third embodiment, and are used to calculate the sum of visible light energy intensity values of different unit signal periods, and the first pixel (i) is Used to calculate the sum of visible light energy intensity values over a signal period.

Therefore, when the display pixels of the display device 100 display the image transmission data, the first pixel (i), the second pixel (ii), and the third pixel (iii) of the imaging device 200 receive the image transmission data displayed by the display device 100 and According to the output image receiving data, the decoding module 220 accumulates the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) for the image receiving data received by the first pixel (i). The sum of the visible light energy intensity values in one signal period, the decoding module 220 accumulates the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel for the image receiving data received by the second pixel (ii) (B) the sum of the visible light energy intensity values of the first unit signal period, and the decoding module 220 for the third pixel (iii) The received image receiving data accumulates the sum of the visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) in the second unit signal period, and the second pixel ( Ii) the sum of the individual visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the first unit signal period and the first pixel (i) The sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) are compared to the sum of the individual visible light energy intensity values of the first unit signal period, and the third pixel (iii) is The sum of the visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the two-unit signal period and the first sub-pixel of the first pixel (i) The second sub-pixel (G) and the third sub-pixel (B) are compared to the sum of the individual visible light energy intensity values of the second unit signal period.

Since the external image data and the modulated image transmission data have the same sum of visible light energy intensity values in one signal period, and the first pixel (i) has pre-calculated the sum of visible light energy intensity values in one signal period, decoding The module 220 can calculate the visible light energy intensity value of the external image data without the average distribution of the first unit signal period and the second unit signal period by calculating the sum of the visible light energy intensity values of the first pixel (i) in one signal period. The sum is shown in Figure 3(a).

Therefore, if the second pixel (ii) is the sum of the visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the first unit signal period, and the first The first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the pixel (i) have the same sum of visible light energy intensity values in the first unit signal period; the third pixel (iii) the sum of the visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the second unit signal period and the first pixel (i) a sub-pixel (R), a second sub-pixel (G), and a third sub-pixel (B) are in the second unit signal The sum of the individual visible light energy intensity values of the cycle is the same, and the sum of the visible light energy intensity values representing the image received data received by the camera 200 is not evenly distributed to the first unit signal period and the second unit signal period, and FIG. 3(a) The image transmission data shown is the same, so the decoding module 220 can determine that the received periodic data bit is 0.

And if the second pixel (ii) is the sum of the individual light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the first unit signal period, and the first pixel (i) the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) have different sums of visible light energy intensity values in the first unit signal period, and the third pixel (iii) the sum of the visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the second unit signal period and the first pixel (i) The sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) have different sums of the respective light energy intensity values in the second unit signal period, and represent the image received by the photographing device 200. The sum of the visible light energy intensity values of the received data is evenly distributed to the first unit signal period and the second unit signal period, as shown in FIG. 3(b), so the decoding module 220 can determine the received period data bit according to the received period. 1. The decoding module 220 decodes the content of the foregoing file data according to the received data received by the decoding module 220.Alternatively, in another embodiment, the sum of the total visible light energy intensity values of the first, second, and third sub-pixels in the first unit signal period and the second unit signal period may be directly compared; or, in another implementation In an example, only the sum of the respective visible light energy intensity values or the total visible light energy intensity values of one or both of the first, second, and third sub-pixels may be compared.

In the fifth embodiment of the present invention, one display pixel of the display device 100 may correspond to three shooting pixels of the imaging device 200, which is the second The pixel (ii), the third pixel (iii), and the fourth pixel (iv) are not limited thereto, and the second pixel (iii) and the third pixel (iii) are the same as those of the third embodiment and the fourth embodiment. The fourth pixel (iv) is used to eliminate noise and reduce transmission errors. The design concept of the fourth pixel (iv) will be further exemplified below with reference to FIGS. 5(a) and 5(b).

Referring to FIG. 5( a ), FIG. 5( a ) is a third embodiment of the sum of visible light energy intensity values in a signal transmission period (T in this embodiment), and the signal period T can be equally divided into One unit signal period T1, second unit signal period T2, third unit signal period T3, and fourth unit signal period T4. The image transmission data includes a first sub-pixel (R), a second sub-pixel (G), and a third sub-pixel (B), and the sum of visible light energy intensity values is not evenly distributed in each unit signal period (1/ in this embodiment) 4T). FIG. 5(b) is a fourth embodiment of the sum of the visible light energy intensity values in the image transmission data in a signal period (T in the present embodiment), and the sum of the visible light energy intensity values is equally distributed in the front and rear two unit signal periods (1). In /2T), that is, the sum of visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) is equally distributed in 1/2 signal periods before and after.

Therefore, when the display pixels of the display device 100 display the image transmission data, the second pixel (ii) and the third pixel (iii) of the image capturing device 200 receive the image transmission data displayed by the display device 100 and generate image receiving data. The decoding module 220 accumulates the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) for the image receiving data received by the second pixel (ii) in the first unit signal period T1 and The sum of visible light energy intensity values of the second unit signal period T2, accumulating the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) for the image receiving data received by the third pixel (iii) Its third unit signal And summing the visible light energy intensity values of the period T3 and the fourth unit signal period T4, and comparing the first unit signal period T1 with the second unit signal period T2 and the third unit signal period T3 and the first unit pixel of the fourth unit signal period T4 (R) the sum of the visible light energy intensity values, the first unit signal period T1 and the second unit signal period T2, and the third unit signal period T3 and the second unit pixel period T4 of the second sub-pixel (G) whose visible light energy intensity value The sum, and the sum of the visible light energy intensity values of the first sub-signal period T1 and the second unit signal period T2 and the third unit signal period T3 and the third sub-pixel period T4 of the fourth unit signal period T4.

If the display device 100 wants to transmit the data in the period in which the bit is 0, and transmits the image transmission data as shown in FIG. 5(a), the first sub-pixel (R) is in the first unit signal in FIG. 5(a). The sum of the visible light energy intensity values of the period T1 and the second unit signal period T2 is 10%, the sum of the visible light energy intensity values of the third unit signal period T3 and the fourth unit signal period T4 is 0%, and the second sub-pixel (G) is The sum of the visible light energy intensity values of the first unit signal period T1 and the second unit signal period T2 is 50%, and the sum of the visible light energy intensity values of the third unit signal period T3 and the fourth unit signal period T4 is 50%, and the third sub-pixel (B) the sum of the visible light energy intensity values of the first unit signal period T1 and the second unit signal period T2 is 50%, and the sum of the visible light energy intensity values of the third unit signal period T3 and the fourth unit signal period T4 is 40%. Therefore, the sum of visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) accumulated in the first unit signal period T1 and the second unit signal period T2 is in the third unit. Signal period T3 and fourth unit signal period T4 The sum of the accumulated visible light energy intensity values is different, so the decoding module 220 can determine that the sum of the visible light energy intensity values of the received image received data is not evenly distributed to the first unit signal period T1 and the second unit signal period T2. And the third single In the bit signal period T3 and the fourth unit signal period T4, the received period data bit is 0.

On the other hand, if the display device 100 wants to transmit data in a period of 1 bit and transmits the image transmission data as shown in FIG. 5(b), in FIG. 5(b), the first sub-pixel (R) is in the first unit. The sum of the visible light energy intensity values of the signal period T1 and the second unit signal period T2 is 5%, the sum of the visible light energy intensity values of the third unit signal period T3 and the fourth unit signal period T4 is 5%, and the second sub-pixel (G) The sum of the visible light energy intensity values of the first unit signal period T1 and the second unit signal period T2 is 50%, and the sum of the visible light energy intensity values of the third unit signal period T3 and the fourth unit signal period T4 is 50%, and the third sub- The sum of the visible light energy intensity values of the pixel (B) in the first unit signal period T1 and the second unit signal period T2 is 45%, and the sum of the visible light energy intensity values of the third unit signal period T3 and the fourth unit signal period T4 is 45%. Therefore, the sum of the visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) accumulated in the first unit signal period T1 and the second unit signal period T2 is in the third Unit signal period T3 and fourth unit signal period T4 The sum of the accumulated visible light energy intensity values is the same, so the decoding module 220 can determine that the visible light energy intensity values of the received image receiving data are evenly distributed in the first unit signal period T1 and the second unit signal period T2 and the first The three-unit signal period T3 and the fourth unit signal period T4 are, so the received period receiving data bit is 1. The decoding module 220 further decodes the content of the foregoing archive data according to the received data received by the period. Alternatively, in another embodiment, the sum of the total visible light energy intensity values of the first, second, and third sub-pixels in the first unit signal period and the second unit signal period may be directly compared; or, in another implementation In an example, only the sum of the respective visible light energy intensity values or the whole of the first, second, and third sub-pixels may be compared. See the sum of the light energy intensity values.

In the process of image transmission, noise may occur due to environmental or human factors, such as display screen shaking, external light conversion, etc., and the wrong image transmission data may be received, and the contents of the file data cannot be correctly decoded. Therefore, The content of the file data can be correctly decoded, and the fourth pixel (iv) is used to filter the noise to ensure the correctness of the file data.

At present, there are many ways to avoid the noise problem. The difference between the visible light energy intensity values is 0~10% and 90~100%. If the noise is not easy to be found, it is easy to decode correctly. In the case of the contents of the archive data, the present embodiment uses the method of determining the sum of the visible light energy intensity values to determine whether to retransmit the current periodic transmission data to filter the noise.

Before performing the judgment, the user can set the condition for periodically transmitting the data retransmission. For example, the decoding module 220 accumulates the visible light energy intensity value of the fourth pixel (iv) in the first unit signal period T1 and the third unit signal period T3. If the accumulated visible light energy intensity value is less than 10% or the visible light energy intensity value accumulated by the second unit signal period T2 and the fourth unit signal period T4 is greater than 40%, that is, T1+T3<10% or T2+T4> 40%, the display module 120 transmits data in a retransmission cycle. The user can also set the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the image transmission data received by the fourth pixel (iv) to be displayed when the retransmission condition is met. The module 120 retransmits the periodic transmission data, or the display module 120 is retransmitted as long as one of the first sub-pixel (R), the second sub-pixel (G), or the third sub-pixel (B) meets the retransmission condition. Transfer data.

As shown in FIG. 5( a ), if the retransmission condition is at this time, only one of the first sub-pixel (R), the second sub-pixel (G), or the third sub-pixel (B) meets the first unit signal period T1. And the visible light energy intensity value of the third unit signal period T3 If the visible light energy intensity value accumulated by less than 10% or the second unit signal period T2 and the fourth unit signal period T4 is greater than 40%, the display module 120 transmits the data in the retransmission period. Since the sum of the visible light energy intensity values accumulated by the second sub-pixel (G) in the second unit signal period T2 in FIG. 5(a) is 25%, the sum of the visible light energy intensity values accumulated in the fourth unit signal period T4 is 25%, so the sum of the visible light energy intensity values accumulated in the second unit signal period T2 and the fourth unit signal period T4 is 50%, which is consistent with the visible light energy accumulated in the second unit signal period T2 and the fourth unit signal period T4. The intensity value is greater than 40%, that is, the condition of retransmission. Therefore, the photographing device 200 can notify the display device 100 to retransmit the periodic transmission data according to the result, and the display device 100 adjusts the next external image data according to the periodic transmission data to obtain the updated image. Transfer the data for display. Since the external image data is a continuous motion image, the sum of the visible light energy intensity values of each of the external image data is different unless a still image is encountered. Therefore, the display device 100 can obtain different visible light energy by using different external image data for modulation. The image transmission data of the sum of the intensity values, the photographing device 200 can obtain the updated image receiving data and can decode the content of the correct file data accordingly.

In the sixth embodiment of the present invention, one display pixel of the display device 100 may correspond to four pixels of the imaging device 200, which are the first pixel (i), the second pixel (ii), and the third pixel (iii). And the fourth pixel (iv), wherein the second pixel (ii) and the third pixel (iii) are the same as the third embodiment, the fourth embodiment, and the fifth embodiment, and are used to calculate visible light of different unit signal periods. The sum of the energy intensity values. The first pixel (i) is the same as the fourth embodiment, and is used for calculating the sum of the light energy intensity values in one signal period, and is used to compare the unit signal period with the second pixel (ii) and the third pixel (iii). The sum of the visible light energy intensity values to determine the sum of the visible light energy intensity values of the image received data Whether it is evenly distributed in a plurality of unit signal periods. The fourth pixel (iv) is the same as the fifth embodiment, and is used to eliminate the noise and reduce the transmission error. The sixth embodiment can be performed in the mode of the third embodiment, the fourth embodiment, or the fifth embodiment or a combination thereof. The transmission of archives.

In the sixth embodiment, the first pixel (i) can accelerate the calculation efficiency of the fourth pixel (iv) to improve the efficiency of eliminating noise. When the first pixel (i) of the image capturing apparatus 200 receives the image transmission data displayed by the display device 100 and generates the image receiving data, the decoding module 220 first accumulates the image receiving data received by the first pixel (i). The sum of visible light energy intensity values in a period signal, wherein the signal period can be divided into a first unit signal period T1, a second unit signal period T2, a third unit signal period T3, and a fourth unit signal period T4, as shown in FIG. 5. (a) is shown.

If the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the image receiving data received by the first pixel (i) are less than the sum of the individual visible light energy intensity values of one period signal, 50%, as shown in the first sub-pixel (R) of Fig. 5(a), the sum of the visible light energy intensity values is 10%. In this embodiment, the sum of the visible light energy intensity values of the received image received data is averaged. The first unit signal period T1 and the third unit signal period T3 are equally distributed in the embodiment, as shown in FIG. 5(b), the first sub-pixel (R), first. The unit signal period T1 and the third unit signal period T3 each have a sum of 5% visible light energy intensity values, and the fourth pixel (iv) only needs to calculate the first unit signal period T1 plus the third unit signal period T3. The sum of the intensity values determines whether a retransmission cycle is required to transmit data.

If the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) of the image receiving data received by the first pixel (i) are in a period signal The sum of the individual visible light energy intensity values is greater than 50%, as shown in the third sub-pixel (B) of FIG. 5(a), because the sum of the visible light energy intensity values of the image receiving data is evenly distributed among the plurality of unit period signals, except the A unit signal period T1 and a third unit signal period T3, the sum of the visible light energy intensity values is distributed to the second unit signal period T2 and the fourth unit signal period T4, as shown in the third sub-pixel of FIG. 5(b). The fourth pixel (iv) only needs to calculate the sum of the light energy intensity values of the first unit signal period T2 plus the third unit signal period T4 to determine whether the data needs to be transmitted during the retransmission period, thereby effectively increasing The calculation speed of the fourth pixel (iv) improves the efficiency of eliminating noise.

6(a) and 6(b) are Embodiment 5 and Embodiment 6 of the image transmission data, wherein the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) are each other Without overlapping, the visible light energy intensity values can be accumulated at different time points T _a , T _b , T _c in the same signal period. When the shooting module 210 captures the image transmission data as shown in FIG. 6( a ), the decoding mode The group 220 is the first sub-pixel (R), the second sub-pixel (G) and the third sub-section of the first unit signal period (1/2T on the left side of the figure) and the second unit signal period (1/2T on the right side of the figure). The pixel (B) accumulates the sum of the visible light energy intensity values, and the sum of the visible light energy intensity values of the first sub-pixel (R) in the first unit signal period is 25%, and the sum of the visible light energy intensity values in the second unit signal period is 0%, the third sub-pixel (B) has a total visible light energy intensity value of 0% in the first unit signal period, and the sum of visible light energy intensity values in the second unit signal period is 25%, although the second sub-pixel (G) The sum of visible light energy intensity values in the first unit signal period and the second unit signal period is 12.5%, but the first The sum of the sub-pixel intensity value of visible light energy (R), and the third sub-pixel (B) of not evenly distributed in the first period and a second signal unit signal unit period, it is still determined that the received data to obtain bit 0 of the period.

In FIG. 6(b), the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) are equally distributed in the first unit signal period (1/2T on the left side of the figure). The second unit signal period (1/2T on the right side of the figure), and the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) are respectively T _a1 , T _b1 in the first unit signal period At the time of T _c1 , the visible light energy intensity values are accumulated in the second unit signal period at times of T _a2 , T _b2 , and T _c2 without overlapping each other, but the sum of the individual visible light energy intensity values is still 12.5%. Therefore, the sum of the visible light energy intensity values of the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) are evenly dispersed in the first unit signal period and the second unit signal period, so decoding The module 220 can determine that the obtained data is received in a period of 1 for the bit.

In summary, the embodiments of the present invention can achieve at least one of the following advantages and effects. Since the embodiment of the present invention converts the file data to be transmitted into a plurality of periodic transmission data, and then transmits the external image data according to the periodic transmission data to generate a plurality of image transmission materials, the imaging device 200 only needs to The received image receiving data accumulates the sum of the visible light energy intensity values according to the unit signal period, and can decode the file data to be received, and the sum of the visible light energy intensity values of each of the external image data in the signal period The image transmission data generated after the external image data is modulated is the same as the sum of the visible light energy intensity values in the signal period. Therefore, the display module 120 only needs to play the modulated image transmission data without additional transmission of the archive data. The power can be used for the purpose of transmitting the archive data, and the modulated image transmission data remains the same as the sum of the visible light energy intensity values before the modulation during the signal period, so that the visual perception of the user watching the movie is not affected. In the case of the transmission of archives. In addition, the embodiment of the present invention can select the data received by each period to transmit data through a smaller number of pixels according to the user's needs, so as to improve the data transmission speed, or transmit the data through more pixels to improve data transmission. The success rate of delivery.

However, the above description is only for the preferred embodiment of the present invention, and the equivalent changes or modifications made by the scope of the present invention and the contents of the specification are still in the present invention. Within the scope of the invention patent. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention. In addition, the terms "first", "second" and the like mentioned in the specification or the scope of the claims are only used to name the elements or distinguish different embodiments or ranges, and are not intended to limit the number of elements. Upper or lower limit.

100‧‧‧ display device

110‧‧‧Code Module

111‧‧‧Sequence Controller

120‧‧‧ display module

200‧‧‧Photographing device

210‧‧‧ Shooting module

220‧‧‧Decoding module

221‧‧‧ timing controller

300‧‧‧External signal source

Claims (25)

A display device for a wireless transmission system, configured to transmit a file data through visible light, comprising: an encoding module, configured to receive the file data and a plurality of external image data, and convert the file data into a plurality of cycles in a sequence Transmitting data, transmitting the plurality of image transmission data in the order according to the data transmission of the external image data; and a display module connected to the coding module for receiving the image transmission data And displaying the image transmission data; wherein each of the external image data has a visible light energy intensity value in a signal period and a visible light energy in the signal period generated by the image transmission data corresponding to the external image data modulation The sum of the intensity values is the same, and the signal period can be divided into a plurality of unit signal periods. The display device of the wireless transmission system according to claim 1, wherein the encoding module adjusts a sum of visible light energy intensity values of the corresponding external image data in the unit signal periods corresponding to the data transmitted in the cycle. And generate a video transmission data. The display device of the wireless transmission system according to claim 2, wherein the data amount of the data transmitted in each of the periods is one bit, and the bit is used to indicate the state of 0 or 1, each of the signals The period can be divided into a first unit signal period and a second unit signal period. When the period of transmission of the data is 0, the sum of the light energy intensity values of the image transmission data in the first unit signal period and the second Sum of light energy per unit signal period Differently, when the period transmission data is 1, the sum of the light energy intensity values of the image transmission data in the first unit signal period is the same as the sum of the light energy intensity values of the second unit signal period. The display device of the wireless transmission system of claim 1, wherein the display module has a plurality of display pixels, and each of the image transmission materials is adapted to be displayed via at least one display pixel of the display module. The display device of the wireless transmission system of claim 1, wherein each of the external image data comprises a sum of light energy intensity values of at least one display pixel. The display device of the wireless transmission system of claim 5, wherein the display pixel further comprises a plurality of sub-pixels, each of the external image data comprising a sum of light energy intensity values of at least one sub-pixel. The display device of the wireless transmission system of claim 1, wherein the display module is adapted to simultaneously display a plurality of the image transmission materials. The display device of the wireless transmission system according to claim 1, wherein the sum of the visible light energy intensity values in the signal period is represented by a gray scale value. The display device of the wireless transmission system of claim 1, wherein the encoding module is adapted to receive the external image data from an external signal source. The display device of the wireless transmission system of claim 1, wherein the encoding module has a timing controller for controlling the encoding module to operate in the sequence. The photographing device of the wireless transmission system of the display device of the first application of the patent application is adapted to receive a file through visible light, comprising: a shooting module for capturing the image transmission data displayed by the display device And generating a plurality of image receiving data; and a decoding module connected to the shooting module for receiving the image receiving data, and converting the image receiving data into a plurality of periodic receiving materials according to the sequence, And generating the file data according to the data received during the periods. The image capture device of the wireless transmission system of claim 11, wherein the decoding module accumulates the sum of the visible light energy of each of the image received data in a corresponding signal period, and converts the corresponding each into a corresponding one. The data is received during these periods. The photographing device of the wireless transmission system of claim 12, wherein the data amount of the received data for each of the periods is one bit, and the bit is used to indicate a state of 0 or 1, each of the signals The period can be divided into a first unit signal period and a second unit signal period. When the sum of the light energy of the image receiving data in the first unit signal period is different from the sum of the light energy of the second unit signal period, the The state in which the periodic reception data is 0, when the image receives the light energy in the first unit signal period The sum of the quantities is the same as the sum of the light energy of the second unit signal period, and the period receives the data as the state of 1. The photographing device of the wireless transmission system of claim 11, wherein the photographing module has a plurality of photographing pixels. The photographing apparatus of the wireless transmission system of claim 11, wherein the photographing module is adapted to receive a plurality of image transmission materials at the same time. The image capture device of the wireless transmission system of claim 11, wherein the decoding module has a timing controller for controlling the decoding module to operate in the sequence. A display program for a wireless transmission system, adapted to be loaded by a computer to execute the program and transmit a file through visible light through a display module, comprising the following program instructions: a program instruction (a), the file data is in an order Converting into a plurality of cycles to transmit data; and program instructions (b), transmitting data according to the cycles to generate a plurality of external image data, generating a plurality of image transmission data in the order, and maintaining each of the external image data in a signal The sum of the visible light energy intensity values in the period is the same as the sum of the visible light energy intensity values in the signal period corresponding to the generated image transmission data. The display program of the wireless transmission system according to claim 17, wherein the program instruction (b) further comprises: The program command (b1) divides the signal period into a plurality of unit signal periods according to the timing, and adjusts the visible light energy intensity value of the corresponding external image data in each of the unit signal periods according to the data transmitted in the period. Sum, and correspondingly generate a video transmission data. The display program of the wireless transmission system of claim 18, wherein the program instruction (b1) further comprises: a program instruction (b11), and adjusting a data amount of the data transmitted in each of the periods is one bit, the bit The element is used to indicate the state of 0 or 1, and each of the signal periods is divided into a first unit signal period and a second unit signal period; and a program instruction (b12) corresponding to the period in which the data is transmitted to zero. The sum of the light energy intensity values of the image transmission data in the first unit signal period is different from the sum of the light energy intensity values of the second unit signal period, and when the period transmission data is 1, the image transmission data is caused. The sum of the light energy intensity values in the first unit signal period is the same as the sum of the light energy intensity values of the second unit signal period. The display program of the wireless transmission system of claim 17, wherein the display program is adapted to cause the computer executing the program to receive the file data from an external source. The display program of the wireless transmission system of claim 17, wherein the display program is adapted to cause the computer executing the program to transmit the image transmission data to the display module, and display the display module by the display module Some images are transmitted. A program for a wireless transmission system that cooperates with the display program of claim 17 is suitable for loading and executing a program via a computer and receiving a file through visible light through a shooting module, which includes the following program instructions: program instructions (c) converting the image transmission data into a plurality of periodic reception materials in the order; and program instruction (d), generating the archive data according to the data received during the periods. The program of the wireless transmission system of claim 22, wherein the program instruction (c) further comprises: a program instruction (c1), dividing the signal period into a plurality of unit signal periods, and calculating a video reception. The data is summed to the visible light energy in each corresponding unit signal period to be converted into a period of receiving data. The program of the wireless transmission system of claim 22, wherein the program instruction (c1) further comprises: a program instruction (c11), and adjusting the amount of data received in each of the periods is one bit, the bit The element is used to indicate the state of 0 or 1, and each of the signal periods is divided into a first unit signal period and a second unit signal period; and a program command (c12), when the image receives the data in the first The sum of the light energy in the unit signal period is different from the sum of the light energy in the second unit signal period, so that the period of receiving the data is 0, and the sum of the light energy of the image receiving data in the first unit signal period and the The sum of the light energy of the second unit signal period is the same, so that the period receiving data is 1 state. The photographing program of the wireless transmission system of claim 22, wherein the photographing program is adapted to cause the computer executing the program to use the photographing module to capture the file data transmitted by the display module and generate a plurality of images. Receive data.