TWI685248B - Data encoding method and encoder - Google Patents

Abstract

A data encoding method, implemented by an encoder, is suitable for displaying data. The display data includes a first pixel and a second pixel adjacent to the first pixel. Each pixel includes a plurality of sequentially arranged sub-pixels. , Each sub-pixel has a plurality of sequentially arranged bits, the data encoding method includes the following steps: (A) arrange the first bit of the first sub-pixel of the second pixel to the first pixel Next to the first bit of the first sub-pixel; (B) arrange the next bit of the first sub-pixel of the second pixel to the next bit of the first sub-pixel of the first pixel Next to the cell; and (C) repeat step (B) until the last bit of the first sub-pixel of the second pixel is arranged next to the last bit of the first sub-pixel of the first pixel .

Description

Data encoding method and encoder

The invention relates to an encoding method, in particular to a data encoding method and an encoder for displaying data.

Due to the rapid development of technology, the transmission interface of the display device has changed from the early parallel transmission interface of transistor-transistor logic (TTL)/Complementary Metal-Oxide-Semiconductor (CMOS) signals, Developed to low-swing differential signal (RSDS), low-voltage differential signal (LVDS) of serial transmission interface, and then to the existing peer-to-peer network , P2P) technology, the transmission speed of the display device is increasing year by year.

However, the existing display device has too high complexity of data encoding, resulting in excessive electromagnetic interference (EMI) and excessive power consumption. The existing display device stores display data, and the display data includes a plurality of pixels, each pixel includes a plurality of sub-pixels, and each sub-pixel has a plurality of bits. The existing The encoding method is to encode each pixel individually, that is, arrange the bits of the same sub-pixel of the same pixel together. Referring to FIG. 1, for example, each pixel includes 3 sub-pixels, namely a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B), each sub-pixel has M bits, Assuming that the first pixel of these pixels is the same as the adjacent second pixel, if M=8, the first pixel or the second pixel is represented as 10101010 10101010 10101010, when the first pixel or In the second pixel, the number of bit inversions is 21, and when the first pixel and the second pixel are transmitted, the number of bit inversions is 42, which shows that even the first The pixels are the same as the second pixel. The transmission interface of the display device requires 2 times the number of bit flips when transmitting the first pixel and the second pixel, so that the transmission interface of the display device transmits the The number of bit flips of such pixels is too high, causing electromagnetic interference and excessive power consumption.

Therefore, how to reduce the data encoding complexity of the display device has become an urgent problem to be solved.

Therefore, the object of the present invention is to provide a data encoding method that can reduce electromagnetic interference and power consumption.

Therefore, the data encoding method of the present invention is implemented by an encoder, which is electrically connected to a storage unit, and the storage unit stores display data, and the display data It includes a first pixel and a second pixel adjacent to the first pixel. Each pixel includes a plurality of sequentially arranged sub-pixels. Each sub-pixel has a plurality of sequentially arranged bits. The data encoding method includes The following steps: (A) arrange the first bit of the first sub-pixel of the second pixel next to the first bit of the first sub-pixel of the first pixel; (B) set the second The next bit of the first sub-pixel of the pixel is arranged next to the next bit of the first sub-pixel of the first pixel; and (C) Repeat step (B) until the second pixel’s The last bit of the first sub-pixel is arranged next to the last bit of the first sub-pixel of the first pixel.

Another object of the present invention is to provide an encoder capable of reducing electromagnetic interference and power consumption.

Therefore, the encoder of the present invention is electrically connected to a storage unit, and the storage unit stores display data, the display data includes a first pixel and a second pixel adjacent to the first pixel, each pixel includes a plurality of sequential In the arranged sub-pixels, each sub-pixel has a plurality of sequentially arranged bits. The encoder includes an encoding module.

The encoding module is used to arrange the first bit of the first sub-pixel of the second pixel next to the first bit of the first sub-pixel of the first pixel, and then The next bit of the first sub-pixel is arranged next to the next bit of the first sub-pixel of the first pixel, and the first sub-pixel of the second pixel is repeatedly arranged The next bit of the pixel is arranged until the last bit of the first sub-pixel of the second pixel is next to the last bit of the first sub-pixel of the first pixel.

Another object of the present invention is to provide a data encoding method that can reduce electromagnetic interference and power consumption.

Therefore, the data encoding method of the present invention is implemented by an encoder, which is electrically connected to a storage unit, and the storage unit stores display data. The display data includes a first pixel and a third pixel adjacent to the first pixel. Two pixels, each pixel includes a plurality of sequentially arranged sub-pixels, each sub-pixel has a plurality of sequentially arranged bits, the data encoding method includes the following steps: (A) the first of the second pixels The first bit of the sub-pixel is arranged next to the first bit of the first sub-pixel of the first pixel; (B) The first bit of the next sub-pixel of the second pixel is arranged to the Next to the first bit of the next sub-pixel of the first pixel; and (C) repeat step (B) until the first bit of the last sub-pixel of the second pixel is arranged to the Next to the first bit of the last sub-pixel.

Another object of the present invention is to provide an encoder capable of reducing electromagnetic interference and power consumption.

Therefore, the encoder of the present invention is electrically connected to a storage unit that stores display data, and the display data includes a first pixel and an adjacent first pixel Each pixel includes a plurality of sequentially arranged sub-pixels, each sub-pixel has a plurality of sequentially arranged bits, and the encoder includes an encoding module.

The encoding module is used to arrange the first bit of the first sub-pixel of the second pixel next to the first bit of the first sub-pixel of the first pixel, and then The first bit of the next subpixel is arranged next to the first bit of the next subpixel of the first pixel, and the first bit of the next subpixel of the second pixel is repeatedly arranged until the The first bit of the last sub-pixel of the second pixel is arranged next to the first bit of the last sub-pixel of the first pixel.

The effect of the present invention is that: the encoding module arranges the bits at the same position of the sub-pixels at the same position of the first pixel and the second pixel together, thereby reducing the number of bit flips during pixel transmission, In order to achieve the effect of reducing electromagnetic interference and power consumption.

1‧‧‧Encoder

11‧‧‧Coding module

2‧‧‧Storage unit

201~207‧‧‧Step

301~307‧‧‧Step

Other features and functions of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a schematic diagram illustrating the existing data encoding method; FIG. 2 is a block diagram illustrating the encoder of the present invention. A first embodiment; FIG. 3 is a flowchart illustrating a first embodiment of the data encoding method of the present invention; FIG. 4 is a schematic diagram illustrating the first embodiment of the data encoding method of the present invention; 5 is a flowchart illustrating a second embodiment of the data encoding method of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

2 and 3, a first embodiment of the encoder of the present invention and a first embodiment of how the encoder implements the data encoding method of the present invention are described.

The encoder 1 includes an encoding module 11 that is electrically connected to a storage unit 2 that stores display data including a first pixel and a third pixel adjacent to the first pixel Two pixels, each pixel includes N sequentially arranged sub-pixels, and each sub-pixel has M sequentially arranged bits. In the first embodiment, each pixel includes, for example, three sub-pixels, which are sequentially a red sub-pixel, a green sub-pixel, and a blue sub-pixel.

The encoding module 11 is used to arrange the first bit of the first sub-pixel of the second pixel next to the first bit of the first sub-pixel of the first pixel, and then the second pixel The next bit of the first sub-pixel is arranged next to the next bit of the first sub-pixel of the first pixel, and the next bit of the first sub-pixel of the second pixel is repeatedly arranged Cells until the last bit of the first sub-pixel of the second pixel is arranged next to the last bit of the first sub-pixel of the first pixel, and The encoding module 11 also arranges the first bit of the next sub-pixel of the second pixel next to the first bit of the next sub-pixel of the first pixel, and then the lower bit of the second pixel The next bit of a sub-pixel is arranged next to the next bit of the next sub-pixel of the first pixel, and the next bit of the next sub-pixel of the second pixel is repeatedly arranged until the second pixel The last bit of the next sub-pixel of the next pixel is arranged next to the last bit of the next sub-pixel of the first pixel, and each bit of the next sub-pixel of the second pixel is repeatedly arranged until the first The last bit of the last sub-pixel of the two pixels is arranged next to the last bit of the last sub-pixel of the first pixel.

The first embodiment of the data encoding method of the present invention will be described below.

In step 201, the encoding module 11 arranges the bits of the first sub-pixel of the first pixel and the bits of the first sub-pixel of the second pixel, that is, i=1.

In step 202, the encoding module 11 arranges the first bit of the sub-pixels of the first pixel and the first bit of the sub-pixels of the second pixel, that is, j=1.

In step 203, the encoding module 11 arranges the j-th bit of the i-th sub-pixel of the second pixel next to the j-th bit of the i-th sub-pixel of the first pixel.

In step 204, the encoding module 11 determines whether the j-th bit of the i-th sub-pixel of the first pixel and the j-th bit of the i-th sub-pixel of the second pixel are The M-th bit determines whether j=M. When the encoding module 11 determines that the j-th bit of the i-th sub-pixel of the first pixel and the j-th bit of the i-th sub-pixel of the second pixel are not the M-th bit, the flow proceeds Step 205. When the encoding module 11 determines that the j-th bit of the i-th sub-pixel of the first pixel and the j-th bit of the i-th sub-pixel of the second pixel are the M-th bit, the process proceeds to steps 206.

In step 205, the encoding module 11 arranges the (j+1)th bit of the i-th subpixel of the first pixel and the (j+1)th bit of the i-th subpixel of the second pixel , That is, j is set to j+1. Thereafter, steps 203 to 204 are repeated until j=M.

In step 206, the encoding module 11 determines whether the i-th sub-pixel of the first pixel and the i-th sub-pixel of the second pixel are N-th sub-pixels, that is, whether i=N is determined. When the encoding module 11 determines that the i-th sub-pixel of the first pixel and the i-th sub-pixel of the second pixel are not N-th sub-pixels, the flow proceeds to step 207. When the encoding module 11 determines that the i-th sub-pixel of the first pixel and the i-th sub-pixel of the second pixel are N-th sub-pixels, the process ends.

In step 207, the encoding module 11 arranges the (i+1)th subpixel of the first pixel and the (i+1)th subpixel of the second pixel, that is, i is set to i+1. After that, steps 202~206 are repeated until i=N.

Referring to FIG. 4, for example, assuming that M=8 and N=3, that is, each pixel includes 3 sub-pixels, that is, red sub-pixel, green sub-pixel, and blue sub-pixel, each sub-pixel has 8 bits , Assuming that the first pixel and the second pixel are the same, and the first The bit of the pixel or the second pixel can be individually expressed as 10101010 10101010 10101010. When transmitting the first pixel and the second pixel, the number of bit flips is 42. After encoding in steps 201 to 207, the The bits of the first pixel or the second pixel can be individually expressed as 1100110011001100 1100110011001100 1100110011001100. When the first pixel and the second pixel are transmitted, the number of bit flips is 21, which shows that compared to the existing encoding In the transmission of the first pixel and the second pixel, only a low (half) number of bit flips is required.

It is worth noting that in the first embodiment, the encoding module 11 arranges all the bits of all the sub-pixels of the first pixel and the second pixel, for example, arranges all the bits of the red sub-pixel and the green sub-pixel All the bits of the pixel and all the bits of the blue sub-pixel. In other embodiments, the encoding module 11 may only arrange all the bits of the first sub-pixel of the first pixel and the second pixel , For example, only arrange all the bits of the red sub-pixel, but not limited to this.

It should be further noted that in the first embodiment, the encoding module 11 encodes the first pixel and the second pixel. In other embodiments, when the display data includes multiple pixels, the encoding The module 11 can encode the pixels in pairs. For example, the display data includes 6 pixels. The encoding module 11 encodes the first pixel and the second pixel, and encodes the third pixel and the fourth pixel. , And then encode the fifth pixel and the sixth pixel, and the encoding module 11 can encode multiple pixels together, for example, the display data includes 6 pixels, the encoding module 11 encodes the first pixel, the second Pixels and the third Pixel encoding, encoding the 4th pixel, 5th pixel and 6th pixel, and if more pixels are encoded together, the number of bit flips is lower, but not limited to this.

2 and 5 illustrate a second embodiment of the encoder of the present invention and how the encoder implements the data encoding method of the present invention. The second embodiment of the encoder 1 is similar to the first embodiment, except that the encoding module 11 is used to arrange the first bit of the first sub-pixel of the second pixel to Next to the first bit of the first sub-pixel of the first pixel, and then arrange the first bit of the next sub-pixel of the second pixel to the first bit of the next sub-pixel of the first pixel Next to the bit, the first bit of the next sub-pixel of the second pixel is repeatedly arranged until the first bit of the last sub-pixel of the second pixel is arranged to the last sub-pixel of the first pixel Next to the first bit of the first pixel, and the encoding module 11 also arranges the next bit of the first sub-pixel of the second pixel to the next bit of the first sub-pixel of the first pixel, And then arrange the next bit of the next sub-pixel of the second pixel next to the next bit of the next sub-pixel of the first pixel, and repeatedly arrange the next bit of the next sub-pixel of the second pixel Cells until the next bit of the last sub-pixel of the second pixel is arranged next to the next bit of the last sub-pixel of the first pixel, and the next bit of each sub-pixel of the second pixel is repeatedly arranged Until the last bit of the last sub-pixel of the second pixel is arranged next to the last bit of the last sub-pixel of the first pixel.

The second embodiment of the data encoding method of the present invention will be described below.

In step 301, the encoding module 11 arranges the first bit of the sub-pixels of the first pixel and the first bit of the sub-pixels of the second pixel, that is, j=1.

In step 302, the encoding module 11 arranges the bits of the first sub-pixel of the first pixel and the bits of the first sub-pixel of the second pixel, that is, j=1.

In step 303, the encoding module 11 arranges the j-th bit of the i-th sub-pixel of the second pixel next to the j-th bit of the i-th sub-pixel of the first pixel.

In step 304, the encoding module 11 determines whether the i-th sub-pixel of the first pixel and the i-th sub-pixel of the second pixel are N-th sub-pixels, that is, whether i=N is determined. When the encoding module 11 determines that the i-th sub-pixel of the first pixel and the i-th sub-pixel of the second pixel are not N-th sub-pixels, the process proceeds to step 305. When the encoding module 11 determines that the i-th sub-pixel of the first pixel and the i-th sub-pixel of the second pixel are N-th sub-pixels, the process proceeds to step 306.

In step 305, the encoding module 11 arranges the (i+1)th subpixel of the first pixel and the (i+1)th subpixel of the second pixel, that is, i is set to i+1. After that, steps 303~304 are repeated until i=N.

In step 306, the encoding module 11 determines whether the j-th bit of the i-th sub-pixel of the first pixel and the j-th bit of the i-th sub-pixel of the second pixel are M-th bit, That is to say whether j=M. When the encoding module 11 determines the first image When the j-th bit of the i-th sub-pixel of the pixel and the j-th bit of the i-th sub-pixel of the second pixel are not the M-th bit, the flow proceeds to step 307. When the encoding module 11 determines that the j-th bit of the i-th sub-pixel of the first pixel and the j-th bit of the i-th sub-pixel of the second pixel are M-th bit, the flow ends.

In step 307, the encoding module 11 arranges the (j+1)th bit of the i-th subpixel of the first pixel and the (j+1)th bit of the i-th subpixel of the second pixel , That is, j is set to j+1. After that, repeat steps 302~306 until j=M.

It is worth noting that, in the second embodiment, the encoding module 11 arranges all the bits of all sub-pixels of the first pixel and the second pixel, for example, arranges all the bits of the red sub-pixel and the green sub-pixel All bits of the pixel and all bits of the blue sub-pixel. In other embodiments, the encoding module 11 may also arrange only the first bit of all sub-pixels of the first pixel and the second pixel For example, only the first bit of the red sub-pixel, the first bit of the green sub-pixel, and the first bit of the blue sub-pixel are arranged, but not limited to this.

In summary, in the data encoding method and encoder of the present invention, the encoding module 11 arranges the bits at the same position of the sub-pixels at the same position of adjacent pixels together, thereby reducing the bit when transmitting pixels The number of flips is to achieve the effect of reducing electromagnetic interference and power consumption, so it can indeed achieve the purpose of cost invention.

However, those mentioned above are only the embodiments of the present invention. When the scope of the present invention cannot be limited by this, all patent applications and patent specifications according to the present invention The simple equivalent changes and modifications made in the content are still covered by the patent of the present invention.

201~207‧‧‧Step

Claims (8)

One kind of data encoding method implemented by an encoder, the encoder electrically connected to a storage unit, the storage unit stores display information, the display information, including a first pixel and a pixel adjacent to and to the same color of the first Two pixels , each pixel includes a plurality of sequentially arranged sub-pixels, each sub-pixel has a plurality of sequentially arranged bits, the data encoding method includes the following steps: (A) the first of the second pixels The first bit of the sub-pixel is arranged next to the first bit of the first sub-pixel of the first pixel, so that the first bit of the first sub-pixel of the second pixel and the first pixel The transmission time of the first bit of the first sub-pixel of the first pixel is connected; (B) The next bit of the first sub-pixel of the second pixel is arranged to the first sub-pixel of the first pixel Next to the next bit of such that the next bit of the first sub-pixel of the second pixel is connected to the transmission time of the next bit of the first sub-pixel of the first pixel; and (C) Step (B) is repeated until the last bit of the first sub-pixel of the second pixel is arranged next to the last bit of the first sub-pixel of the first pixel. According to the data encoding method described in claim 1, after step (C), the method further includes the following steps: (D) arrange the first bit of the next sub-pixel of the second pixel to the next of the first pixel Next to the first bit of the sub-pixel; (E) arrange the next bit of the next sub-pixel of the second pixel to the next bit of the next sub-pixel of the first pixel; (F ) Repeat step (E) until the next child of the second pixel The last bit of the pixel is arranged next to the last bit of the next sub-pixel of the first pixel; and (G) Repeat steps (D) to (F) until the last sub-pixel of the second pixel The last bit of is arranged next to the last bit of the last sub-pixel of the first pixel. An encoder is electrically connected to a storage unit, the storage unit stores display data, the display data includes a first pixel and a second pixel adjacent to the same color as the first pixel , each pixel includes a plurality of sequential For the arranged sub-pixels, each sub-pixel has multiple sequentially arranged bits, the encoder includes: an encoding module for arranging the first bit of the first sub-pixel of the second pixel to Next to the first bit of the first sub-pixel of the first pixel, so that the first bit of the first sub-pixel of the second pixel and the first bit of the first sub-pixel of the first pixel The transmission time of the bits is connected, and then the next bit of the first sub-pixel of the second pixel is arranged next to the next bit of the first sub-pixel of the first pixel, so that the second pixel The next bit of the first sub-pixel is connected to the transmission time of the next bit of the first sub-pixel of the first pixel, and the arrangement of the next bit of the first sub-pixel of the second pixel is repeated One bit until the last bit of the first sub-pixel of the second pixel is arranged next to the last bit of the first sub-pixel of the first pixel. The encoder according to claim 3, wherein the encoding module further arranges the first bit of the next sub-pixel of the second pixel to the first bit of the next sub-pixel of the first pixel Side, then arrange the next bit of the next sub-pixel of the second pixel to the next sub-pixel of the first pixel Next to the next bit of the pixel, the next bit of the next sub-pixel of the second pixel is repeatedly arranged until the last bit of the next sub-pixel of the second pixel is arranged to the Next to the last bit of the next sub-pixel, each bit of the next sub-pixel of the second pixel is repeatedly arranged until the last bit of the last sub-pixel of the second pixel is arranged to the Next to the last bit of the last sub-pixel. A data encoding method is implemented by an encoder, which is electrically connected to a storage unit, and the storage unit stores display data, the display data including a first pixel and an adjacent pixel of the same color as the first pixel Two pixels , each pixel includes a plurality of sequentially arranged sub-pixels, each sub-pixel has a plurality of sequentially arranged bits, the data encoding method includes the following steps: (A) the first of the second pixels The first bit of the sub-pixel is arranged next to the first bit of the first sub-pixel of the first pixel, so that the first bit of the first sub-pixel of the second pixel and the first pixel The transmission time of the first bit of the first sub-pixel of the first pixel is connected; (B) The first bit of the next sub-pixel of the second pixel is arranged to the first bit of the next sub-pixel of the first pixel Next to each bit, so that the first bit of the next sub-pixel of the second pixel is connected to the transmission time of the first bit of the next sub-pixel of the first pixel; and (C) repeat step (B) ) Until the first bit of the last sub-pixel of the second pixel is arranged next to the first bit of the last sub-pixel of the first pixel. The data encoding method as described in claim 5, after step (C), further includes the following Steps: (D) arrange the next bit of the first sub-pixel of the second pixel next to the next bit of the first sub-pixel of the first pixel; (E) place the next bit of the second pixel The next bit of a sub-pixel is arranged next to the next bit of the next sub-pixel of the first pixel; (F) Repeat step (E) until the next bit of the last sub-pixel of the second pixel Arrange the element next to the next bit of the last sub-pixel of the first pixel; and (G) repeat steps (D) to (F) until the last bit of the last sub-pixel of the second pixel is arranged To the last bit of the last sub-pixel of the first pixel. An encoder is electrically connected to a storage unit, the storage unit stores display data, the display data includes a first pixel and a second pixel adjacent to the same color as the first pixel , each pixel includes a plurality of sequential For the arranged sub-pixels, each sub-pixel has multiple sequentially arranged bits, the encoder includes: an encoding module for arranging the first bit of the first sub-pixel of the second pixel to Next to the first bit of the first sub-pixel of the first pixel, so that the first bit of the first sub-pixel of the second pixel and the first bit of the first sub-pixel of the first pixel The transmission time of the bit is connected, and then the first bit of the next sub-pixel of the second pixel is arranged next to the first bit of the next sub-pixel of the first pixel, so that the The first bit of a sub-pixel is connected to the transmission time of the first bit of the next sub-pixel of the first pixel, and the first bit of the next sub-pixel of the second pixel is repeatedly arranged until the The first bit of the last sub-pixel of the second pixel is arranged next to the first bit of the last sub-pixel of the first pixel. The encoder according to claim 7, wherein the encoding module further arranges the next bit of the first sub-pixel of the second pixel to the next bit of the first sub-pixel of the first pixel Next, arrange the next bit of the next sub-pixel of the second pixel next to the next bit of the next sub-pixel of the first pixel, repeatedly arrange the next bit of the next sub-pixel of the second pixel One bit until the next bit of the last sub-pixel of the second pixel is arranged next to the next bit of the last sub-pixel of the first pixel, and the next bit of each sub-pixel of the second pixel is repeatedly arranged One bit until the last bit of the last sub-pixel of the second pixel is arranged next to the last bit of the last sub-pixel of the first pixel.

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