TWI695591B - Data stepped compression transmission method and device and electronic equipment for realizing the method - Google Patents

Abstract

無。

Description

Data stepped compression transmission method and device and electronic equipment for realizing the method

The invention relates to a data processing method and a device and equipment for completing the data processing method, in particular to a data compression transmission method and a device and equipment for completing the method.

The communication method of the Inter-Integrated Circuit (Inter-Integrated Circuit) bus, which is referred to as I ² C bus, is widely used because of its simple implementation. However, one of the shortcomings of the existing technology using the I ² C bus communication method is the limitation of data Transmission rate. For example, when I ² C bus communication is used to transmit Touch Panel data, the Touch Panel is referred to as TP, and the I ² C bus communication protocol requires a rate of 100 kbit/s to 400 kbit/s. , TP data reporting rate requires 120 frames per second, then the time to transmit one frame of TP data is about 8.33ms. For the reporting of a frame of TP data, the algorithm itself takes about 5ms, and the reported data is limited to 3ms. Based on the I ² C bus communication rate of 400kbit/s and the reporting rate of 120Hz, the amount of reported data in 3ms is: ( 400000/8/1000)×3 = 150 byte TP data package includes basic data and extended data. The common 10 touch packages are used as basic data. The extended data includes raw data (Raw Data) used for algorithm expansion, pre-processed data after subtracting the basic data (Base Data), or on Report the gesture track information, etc. In the data volume of 150 bytes, 10 touch packages (Touch Package) already occupy 52 bytes, and the remaining 98 bytes are used as extended data.

A typical extended data 1, comprising 32 × 18 18 32 Data channel matrix row data channel configuration, the value of data for each data channel 16-bit binary number, then through FIG required I ² C 1 shown in The amount of extended data transmitted by the bus is: (32×18×16)/8 = 1152 byte. Obviously, the amount of data of the typical extended data of 1152 byte requires the I ² C bus to take a longer time to transmit.

For reporting TP data, this is a common problem. When this problem occurs, the existing technology should increase the length of the data buffer (Buffer), which means that the above I ² C bus can provide the time for reporting TP data, 8.33 ms, which is not enough to complete the reporting of TP data, and the report needs to be extended Time, and this processing method of the prior art will cause a sudden drop in the reporting rate. The reporting rate directly affects the user's TP operation experience. The higher the reporting rate, the smoother the user experience TP operation and the sudden drop in the reporting rate to the user. The experience is that the TP operation is poor in fluency, and even causes the TP operation to have a sense of frustration and lag. Therefore, the prior art I ² C bus data transmission has defects in the computing power of the embedded system, such as accuracy requirements, poor graphics computing power, and small memory. There is no better method to transfer computing power, which limits Many technology extensions applied in the field of touch detection.

The technical problem to be solved by the present invention is to avoid the shortcomings of the prior art and to propose a data compression transmission method which is capable of compressing and transmitting the data volume and is suitable for I ² C bus communication.

The present invention can solve the technical problems by adopting the following technical solutions:

This paper proposes a hierarchical compression transmission method for data based on I ² C bus communication in an integrated circuit. In the communication between the master device and the slave device electrically connected through the internal bus of the integrated circuit, the following data processing is performed on the transmitted data Process: Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval separately; For transmission data that includes Q data words, Q is a natural number , According to the threshold value interval where the value of the data word is located, replace the value of each data word with the threshold interval code of the threshold value interval where it is located to form interval code data including Q interval code data words; Set the data word compression/ Decompression protocol, the data word compression/decompression protocol sets rules for compressing interval code data words into compressed data words, rules for compressing data words into compressed transmission data frames, and rules for decomposing compressed data frames into compressed data words, and Decompress the compressed data word into at least one of the rules of the interval code data word; according to the data word compression/decompression protocol, combine the threshold interval code of more than two interval code data words into one compressed data word, so that Q The interval code data word is compressed into R compressed data words, R is a natural number, R <Q, the R compressed data words form a compressed transmission data frame; the slave device sends the compressed transmission data frame to the master device; the master device according to the data word The compression/decompression protocol parses the received compressed transmission data frame, and decompresses R compressed data words into interval code data including Q interval code data words.

Specifically, the data packet transmitted by the bus within the integrated circuit includes basic data and extended data; the transmission data in the method is the extended data in the data packet.

More specifically, the extended data is extended data of the touch screen gesture recognition algorithm, extended data of the touch screen proximity sensing algorithm, extended data of the touch screen waterproof algorithm, and extended data of the highly sensitive suspension algorithm, And at least one of the extended data of the pressure detection algorithm.

Specifically, the Q data words are a data channel matrix including X×Y data channels, and each data channel is a data word, that is, Q=X×Y.

Specifically, Z=1, that is, setting a data threshold TH ₁ to form two threshold intervals (-∞, TH ₁ ] and (TH ₁ , +∞), one bit for each of the two threshold intervals The interval threshold code is 0, 1. Then, replacing the value of each data word with the threshold interval code of the threshold interval in which it is located is to replace Q data words with Q binarized interval code data words.

More specifically, the value of the data word is a 16-bit binary code; the value of the compressed data word is an 8-bit binary code, then, the 8 interval code data words are compressed into one compressed data word, so that R=Q/8.

Further, the data word compression/decompression protocol sets at least one of the following, When data word is compressed, the rules of the interval code data word selected to be compressed into a compressed data word; When the data word is compressed, the sequence of the data word compressed into the compressed data word is sorted; When the data words are compressed, the arrangement order of the compressed data words; When the data word is decompressed, the decompression sequence of the compressed data word; When the data word is decompressed, the compressed data word is decomposed into the order of the code data words in each interval; and, When the data word is decompressed, the data words of each interval code that are decomposed into are restored and sorted.

In the solution of the present invention, the host device is a data transmission receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor One. The slave device is a transmission data transmission device, including a terminal, a co-processor, a touch control chip, a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller, a fingerprint recognition chip, and a fingerprint recognition microcontroller At least one.

In order to further meet the demand of the compressed data, before the data processing of the transmitted data, The slave device decomposes the transmission data of one frame into at least G subframe transmission data, G≥2; the data processing process is performed on the transmission data of each subframe respectively, so that the master device obtains the G subframe interval code data; The master device integrates the G subframe interval code data into a whole frame of interval code data.

The present invention can also solve the technical problems by adopting the following technical solutions:

Design and manufacture a master device capable of compressing and transmitting data in stages, which can be electrically connected to the slave device through the internal busbar of the integrated circuit. The main device includes more than two electronic components. The composition and connection structure of each electronic component enable the main device to at least complete the following main device data processing process:

The master device receives the compressed transmission data frame sent from the slave device. The master device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decompresses the R compressed data words into interval code data including Q interval code data words.

The data word compression/decompression protocol sets rules for compressing interval code data words into compressed data words, rules for compressing data words into compressed transmission data frames, rules for decomposing compressed data frames into compressed data words, and compression The data word is decompressed into at least one of the rules of the interval code data word; a compressed data word is formed by compressing the threshold interval code of more than two interval code data words according to the data word compression/decompression protocol, so that Q interval codes The data words are compressed into R compressed data words, R<Q, and the R compressed data words form a compressed transmission data frame.

The interval code data including Q interval code data words is converted from the transmission data including Q data words through the following processes: Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; according to the threshold interval where the value of the data word is located, each data word The value of is replaced with the threshold interval code of the threshold interval where it is located to form interval code data including Q interval code data words.

In order to further compress the data, when the slave device decomposes a frame of transmission data into at least G subframe transmission data, G ≥ 2; the slave device sends the G subframe compressed transmission data frame to the master device, then each electronic component of the master device The composition and connection structure of the main device enable the main device to complete the following data combination process: The master device performs the data processing of the master device on the G subframe compressed transmission data frames respectively, so as to decompress to obtain G subframe interval code data; The master device integrates the G subframe interval code data into a whole frame of interval code data.

In the above solution, the host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor. Then, the slave device is a data sending device, including a terminal, a co-processor, a touch control chip, a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller, a fingerprint recognition chip, and a fingerprint recognition microcontroller At least one of them.

The present invention can solve the technical problems by adopting the following technical solutions:

Design and manufacture a slave device capable of compressing and transmitting data in stages, which can be electrically connected to the master device through the internal busbar of the integrated circuit. The slave device includes more than two electronic components; the composition and connection structure of each electronic component enable the slave device to complete at least the following slave device data processing process: Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; for transmission data that includes Q data words, according to the value of the data word The threshold interval of the data, replace the value of each data word with the threshold interval code of the threshold interval in which it is located, to form interval code data including Q interval code data words; Set the data word compression/decompression protocol. The data word compression/decompression protocol sets the rules for compressing interval code data words into compressed data words, and the compressed data words are formed into compressed transmission data frames. The compressed data frames are decomposed into compressed data. Word rules and at least one of the rules for decompressing compressed data words into interval code data words; according to the data word compression/decompression protocol, the threshold interval codes of more than two interval code data words are combined into one compressed data word , To compress Q interval code data words into R compressed data words, R<Q, the R compressed data words form a compressed transmission data frame; Send the compressed transmission data frame to the master device.

To further compress the data, the composition and connection structure of the electronic components of the slave device enable the slave device to complete the following data decomposition process: Decompose the transmission data of one frame into at least G subframe transmission data, G≥2; After the G subframe transmission data respectively passes through the slave device data processing process, the slave device sends the G subframe compressed transmission data frame to the master device.

In the above solution, the slave device is a data sending device, including a terminal, a coprocessor, a touch control chip, a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller, a fingerprint recognition chip, and a fingerprint recognition micro At least one of the controllers. Then, the host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor.

The present invention can solve the technical problems by adopting the following technical solutions:

An electronic device capable of compressing and transmitting data in stages includes at least one master device and at least one slave device, and the master device and the slave device are electrically connected to each other through an internal bus bar of an integrated circuit.

The slave device includes more than two electronic components. The composition and connection structure of each electronic component of the slave device enable the slave device to complete at least the following slave device data processing process: Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; for transmission data that includes Q data words, according to the value of the data word The threshold interval of the data, replace the value of each data word with the threshold interval code of the threshold interval in which it is located, to form interval code data including Q interval code data words; Set the data word compression/decompression protocol. The data word compression/decompression protocol sets the rules for compressing interval code data words into compressed data words, and the compressed data words are formed into compressed transmission data frames. The compressed data frames are decomposed into compressed data. Word rules and at least one of the rules for decompressing compressed data words into interval code data words; according to the data word compression/decompression protocol, the threshold interval codes of more than two interval code data words are combined into one compressed data word , To compress Q interval code data words into R compressed data words, R<Q, the R compressed data words form a compressed transmission data frame; Send the compressed transmission data frame to the master device.

The main device includes more than two electronic components. The composition and connection structure of each electronic component of the main device enable the main device to complete at least the following main device data processing process:

The master device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decompresses R compressed data words into interval code data including Q interval code data words.

To further compress the data, the composition and connection structure of the electronic components of the slave device enable the slave device to complete the following data decomposition process: Decompose the transmission data of one frame into at least G subframe transmission data, G≥2; After the G subframe transmission data passes through the slave device data processing process, the slave device sends the G subframe compressed transmission data frame to the master device.

The composition and connection structure of the electronic components of the main device enable the main device to complete the following data combination process: The master device performs the data processing of the master device on the G subframe compressed transmission data frames respectively, so as to decompress to obtain G subframe interval code data; The master device integrates the G subframe interval code data into a whole frame of interval code data.

In the above solution, the host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor. The slave device is a data sending device, including a terminal, a co-processor, a touch control chip, a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller, a fingerprint recognition chip, and a fingerprint recognition microcontroller at least one.

Compared with the prior art, the technical effects of the "data gradation compression transmission method and devices and electronic equipment implementing the method" of the present invention are as follows:

Quantify the characteristic points of the transmitted data through multi-level thresholds, greatly reduce the number of data words occupied by the data words without affecting the reporting rate requirements, and ensure that multiple data words are combined without distortion to compress the transmitted data. Volume, high compression rate, improve the data transmission efficiency of I ² C bus, effectively solve the transfer calculation ability of embedded systems; by increasing or decreasing the threshold order, to meet the accuracy requirements of transmission data.

The following describes the embodiments in detail with reference to the drawings.

The present invention proposes a data compression method based on I ² C bus communication in an integrated circuit. In the communication between the master device and the slave device electrically connected through the internal bus of the integrated circuit, the transmission data is as follows Data processing process: Set Z data thresholds, Z≥1; assuming that the data thresholds are TH ₁ , ..., TH _Z , TH ₁ <……<TH _Z , then the Z+1 threshold interval should be (- ∞, TH ₁ ], ..., (TH _Z , +∞); set the threshold interval codes for each threshold interval separately; for transmission data that includes Q data words, Q is a natural number, based on the value of the data word Where the threshold value interval is, replace the value of each data word with the threshold interval code of the threshold value interval where it is located to form interval code data including Q interval code data words; set the data word compression/decompression protocol, the data word The compression/decompression protocol sets up rules for compressing interval code data words into compressed data words, rules for compressing data words into compressed transmission data frames, rules for decomposing compressed data frames into compressed data words, and decompression of compressed data words into At least one of the rules of the interval code data word; according to the data word compression/decompression protocol, the threshold interval code of more than two interval code data words is combined into a compressed data word, so that the Q interval code data words are compressed into R compressed data words, R is a natural number, R<Q, the R compressed data words form a compressed transmission data frame; the slave device sends the compressed transmission data frame to the master device; the master device parses the received data according to the data word compression/decompression protocol The received compressed transmission data frame decomposes R compressed data words into interval code data including Q interval code data words.

The master device and the slave device are the transmitting and receiving end devices for I ² C bus communication. The main device is a transmission data receiving device, including at least one of a host computer, a central processor, a touch screen main processor, a pressure detection device main processor, and a fingerprint identification device main processor. The slave device is a transmission data transmission device, including a terminal, a co-processor, a touch control chip, a touch control microcontroller (Micro Controller Unit, MCU), a pressure detection chip, a pressure detection microcontroller (MCU), At least one of a fingerprint recognition chip and a fingerprint recognition microcontroller (MCU).

According to the first embodiment of the present invention, the following hardware and software environment is constructed to exemplarily illustrate the data gradation compression transmission method based on I ² C bus communication inside an integrated circuit:

The method of the present invention is used to transmit data packets. In the first embodiment of the present invention, the data in the data packets transmitted by I ² C bus communication are not all the transmission data compressed and transmitted by the method of the present invention. The data package includes basic data and extended data. Referring to FIG. 3, the first embodiment of the present invention is used to process a touch screen gesture recognition algorithm data packet, including report point coordinate data and extended data as basic data, the extended data is a touch screen gesture recognition algorithm Extended data, the transmission data compressed and transmitted by the method of the present invention is the extended data in the data packet. The transmission environment on which the data packet is based is the I ² C bus communication rate is 400 kbit/s, and the report rate of the transmission data packet requires 120 frames/second, then the data volume of the data packet is 150 byte, including the data volume is The 52-byte report point coordinate data as the basic data, and the data amount is 98 bytes, as the extended data of the transmission data compressed and transmitted by the method of the present invention. In the first embodiment of the present invention, as shown in FIG. 3, the point coordinate data in the data package is set before the extended data. In addition, the fourth embodiment of the present invention, as shown in FIG. 9, differs from the first embodiment only in that the report point coordinate data is set after the extended data in the data package, which is also a feasible solution. The extended data of the present invention may also be extended data of the touch screen gesture recognition algorithm, extended data of the proximity sensing algorithm, extended data of the touch screen waterproof algorithm, extended data of the highly sensitive suspension algorithm, and pressure detection algorithm At least one kind of extension materials in the method of extension materials.

In the present invention, the master device and the slave device are relative concepts. The master device is a data receiving device, and the slave device is a data sending device. In practical applications, the device can usually be used as both a data receiving device and a data sending device. Of the two devices that perform I ² C bus communication, the device used as the data receiving device is set as the master device of the method of the present invention, and the device used as the data sending device is set as the slave device of the method of the present invention . In the first embodiment of the present invention, the master device is a central processor, and the slave device is a touch control chip electrically connected to the central processor.

In the first embodiment of the present invention, the extended data used for transmitting data is shown in FIG. 1 and includes a 32×18 data channel matrix composed of 18 columns and 32 rows of data channels. Each data channel is a data word. Q data words are data channel matrices that reflect the values of X×Y data channels, Q=X×Y. In the first embodiment of the present invention, Q=576, X=18, and Y=32. The ordering of the data channels in Figures 1 and 2 is that the first 16 data channels in each column are divided into the front group in the order from left to right, and the last 16 data channels in each column are divided into the rear group. Sort the data channels according to the left-to-right and top-to-bottom order of each column in the front group, and then continue to sort the data channels according to the left-to-right and top-to-bottom column order of the rear group. That is, the first 16 data channels from left to right in the first column are the zero data channel CH0, one data channel CH1, ..., fifteen data channels CH15; the second column according to the first 16 from left to right The data channels are sixteen data channels CH16, seventeen data channels CH17, ..., thirty-one data channels CH31, and so on. In the first column, the 16 data channels from left to right are 288 in sequence. Data channel CH288, ..., 303 data channel CH303; and so on.

In the first embodiment of the present invention, as shown in FIG. 1, the data value of a data word, that is, the channel value of a data channel is shown in decimal. In data transmission, a data font is now 16 bits equivalent to the decimal display value. Binary code, then the data volume of the transmitted data as shown in Figure 1 is as follows: (32×18×16)/8 = 1152 byte Obviously, the data volume of the typical extended data of 1152 byte requires a longer I ² C bus Time to transfer. In the following, this problem is solved by the method of data compression compression transmission based on I ² C bus communication in an integrated circuit of the present invention.

The number Z of the threshold value of the method of the present invention is the order of stepwise compression. In the first embodiment of the present invention, the first-order compression transmission method is adopted, that is, Z=1, a data threshold value TH _{1 is set} , and the data threshold value TH ₁ is 1000 in decimal, thus forming two threshold intervals (-∞, TH ₁ ] and (TH ₁ , +∞), namely (-∞, 1000) and (1000, +∞). It is the threshold interval (- ∞, 1000] The one-bit threshold code set is 0, and the one-bit threshold code set for the threshold interval (Q1, +∞) is 1. Conversely, the threshold value set for the threshold interval (-∞, 1000) The one-bit threshold code is 1, and the one-bit threshold code set for the threshold interval (Q1, +∞) is 0 is also a feasible solution equivalent to the first embodiment of the present invention.

For transmission data including 32×18 data words, according to the value of the data word, that is, the threshold interval where the channel value of the data channel is located, the value of each data word is replaced with the threshold interval code of the threshold interval where it is located, The section code data including 32×18 section code data words as shown in FIG. 2 is formed, that is, 32×18 data words are converted into 32×18 binary section code data words.

According to the data word compression/decompression protocol, the threshold interval code of more than two interval code data words is combined into one compressed data word. In the first embodiment of the present invention, as shown in FIG. 3, one compressed data word includes 8-bit binary codes, Bit0, Bit1, ..., Bit7. The interval code data word uses a one-bit binary code, then 8 interval code data words are combined into a compressed data word, so that R=Q/8=72, and 32×18 interval code data words are converted into 72 compressed data words , The 72 compressed data words form a compressed transmission data frame. Fig. 4 shows 72 compressed data words in the compressed data frame, and the data value of each compressed data word is represented by a decimal number. The data volume of 72 compressed data words is 72 byte. Therefore, the data volume of the transmission data is compressed from 1152 bytes to 72 bytes of compressed transmission data frames, and the compression rate reaches 16 times.

Compression of interval code data words into compressed data words needs to be performed according to the data word compression/decompression protocol. In the first embodiment of the present invention, as shown in FIG. 2 to FIG. 4, when data word compression is performed, the rule for selecting the interval code data word used to compress into a compressed data word is, according to the data channel order, every 8 The data channels are used as a group, and a group of 8-channel interval code data words are selected for compression into one compressed data word. The sequence of data words compressed into compressed data words is sorted as shown in Figure 3. In a group of 8 consecutive data channels, the interval code of the data channel with the lowest number is set to the lowest bit of the compressed data word. In order of increasing channel number, the interval code data words of the data channel are sequentially set according to the order of the compressed data word from low bit to high bit; that is, the interval codes of the data channels CH0 to CH7 are compressed into one compressed data Word, the section code of the data channel CH0 is set to the compressed data word zero bit Bit0, the section code of the data channel CH1 is set to the compressed data word Bit1, ..., the section code of the data channel CH7 is set to the compressed data word 7-bit Bit7. The arrangement order of each compressed data word is as shown in FIG. 2 and FIG. 4, according to the order of the numbers from small to large, the compressed data words compressed by the interval code data words of every 8 data channels are sequentially arranged. As shown in FIG. 4, the ninth compressed data word is formed by compressing the interval code data words of the first eight data channels in the fifth column shown in FIG. 2, and the decimal data value of the 8-bit binary data value 00011000 is 24. The 17th compressed data word is formed by compressing the interval code data words of the first eight data channels in the 9th column shown in FIG. 2, and the decimal data value of the 8-bit binary data value 00010001 is 136. In data word compression, the rules for compressing interval code data words into compressed data words include setting rules for selecting interval code data words that are combined into a compressed data word, and setting interval code data words that are combined into compressed data words. Sort. When compressing data words, the rules for composing compressed data words into compressed transmission data frames include the arrangement order of each compressed data word. The specific content of the above rules should be reasonably set according to factors such as data characteristics and application environment. In the application, all of the above settings may be set, or only at least one of them may be set.

The slave device sends the compressed transmission data frame to the master device. In the first embodiment of the present invention, the compressed transmission data frame has been compressed to less than 98 bytes, so that the transmission of the compressed data frame will not cause a drop in the reporting rate.

The master device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decomposes 72 data compression words into 576 interval code words.

Decompressing compressed data words into interval code data words also needs to be performed according to the data word compression/decompression protocol. In the first embodiment of the present invention, when the data word is decompressed, the rule for decomposing the compressed data frame into compressed data words includes setting the decompression order of the compressed data words, that is, sequentially decompressing each compressed data word according to the order of the compressed data words. According to the first embodiment of the present invention, when the data word is decompressed, the rules for decompressing the compressed data word into interval code data words include setting the order of the decomposition of the compressed data word into each interval code data word, and setting the decomposition into each interval code data word The sorting of restore is based on the sorting of data word compression. Of course, if in order to facilitate the subsequent processing of the data and to consider the use of the data and other factors, the data word decompression rules different from the first embodiment may be adopted. In the application, all of the above settings may be set, or only at least one of them may be set.

The invention quantifies and retains the characteristic points of the transmitted data through the threshold value, greatly reduces the number of data values occupied by the data words without affecting the reporting rate requirements, and ensures that multiple data words are combined without distortion to compress the data of the transmitted data Volume, high compression rate, improve the data transmission efficiency of I ² C bus, and effectively solve the ability of embedded systems to transfer calculations.

The rules used for compression in the data word compression/decompression protocol and the practical rules for decompression can be related to each other, or they can be irrelevant. You need to make corresponding preparations according to the characteristics of the data and the application scenario.

When there are many characteristic points of the transmitted data, the characteristic points can be retained by setting more than one threshold, that is, the value of Z can be increased reasonably, and the data can be compressed and transmitted through more than one data threshold. As shown in FIGS. 5 to 7, a group of transmission data different from that shown in FIG. 1 has 4 characteristic points, and needs to be divided into 5 through 4 data thresholds TH ₁ <TH ₂ <TH ₃ <TH ₄ Threshold interval (-∞, TH ₁ ], (TH ₁ , TH ₂ ], (TH ₂ , TH ₃ ], (TH ₃ , TH ₄ ], (TH ₄ , +∞), 4th order compression. For each The threshold interval codes set for the threshold interval are decimal 0, 1, 2, 3, 4, respectively. In practice, the decimal threshold interval codes should be converted into binary codes. Transmission data, section code data words formed after conversion are shown in Figure 5.

Although more characteristic points are retained through the first-order multi-level data threshold, the compression rate of the transmitted data will be reduced. In addition, for some transmitted data, even through the first-level data threshold compression with a higher compression rate, The amount of data after compression is still high. For the above two cases, the method of the present invention can be implemented by first decomposing the transmission data and then combining and reducing the solution. Based on the above-mentioned method of the present invention, the present invention also proposes a process of decomposition/combination of transmission data: Before performing data processing on the transmitted data, The slave device decomposes the transmission data of one frame into at least G subframe transmission data, G≥2; the data processing process is performed on the transmission data of each subframe respectively, so that the master device obtains the G subframe interval code data; The master device integrates the G subframe interval code data into a whole frame of interval code data.

In the third embodiment of the present invention, as shown in FIG. 8, the transmission data including 32×18 data words different from that shown in FIG. 1 is decomposed into 2 subframe transmission data including 16×18 data words, and converted into intervals Code data word, which is the case of G=2 above. Through the above-mentioned transmission data decomposition/combination method, the transmission data is ensured to be completely transmitted in the time domain based on the transmission rate and the reporting rate.

The present invention also proposes a master device capable of data compression and transmission based on the data gradation compression transmission method based on the internal bus communication of the integrated circuit. The main device can be electrically connected to the slave by means of the I ² C bus inside the integrated circuit Device. The main device includes more than two electronic components. The composition and connection structure of each electronic component enable the main device to at least complete the following main device data processing process:

The master device receives the compressed transmission data frame sent from the slave device. The master device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decompresses the R compressed data words into interval code data including Q interval code data words.

The data word compression/decompression protocol sets rules for compressing interval code data words into compressed data words, rules for compressing data words into compressed transmission data frames, rules for decomposing compressed data frames into compressed data words, and compression The data word is decompressed into at least one of the rules of the interval code data word; a compressed data word is formed by compressing the threshold interval code of more than two interval code data words according to the data word compression/decompression protocol, so that Q interval codes The data word is compressed into R compressed data words, R<Q, and the R compressed data words form a compressed transmission data frame;

The interval code data including Q interval code data words is converted from the transmission data including Q data words through the following processes:

Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval. According to the threshold value interval where the value of the data word is located, the value of each data word is replaced with the threshold interval code of the threshold value interval where it is located to form interval code data including Q interval code data words.

In order to further improve the amount of data compression, the master device can also cooperate with the slave device to complete the data combination. When the slave device decomposes a frame of transmission data into at least G subframe transmission data, G≥2, the slave device sends a G subframe compressed transmission data frame to the master device, then, the composition and connection structure of each electronic component of the master device The main device can also complete the following data combination process:

The master device performs the data processing of the master device on the G subframe compressed transmission data frames respectively, so as to decompress to obtain G subframe interval code data;

The master device integrates the G subframe interval code data into a whole frame of interval code data.

Specifically, when the slave device decomposes a frame of transmission data into G subframe transmission data, it should add data information reflecting the decomposition mode, for example, the data information includes reflecting that the subframe transmission data is a frame transmission data is decomposed into G subframes One of the frame transmission data, the ranking of the subframe transmission data, the amount of data of the subframe transmission data, etc. The master device receives the G subframe compressed transmission data frame sent from the slave device; the master device parses the received subframe compressed transmission data frame according to the data word compression/decompression protocol, and decompresses the R compressed data words of the compressed transmission data frame to include The interval code data of Q interval code data words obtains the G subframe interval code data. The master device organizes and combines the interval code data of the G subframe interval code data into a whole frame interval code data according to the data information reflecting the decomposition mode.

The above-mentioned first to fourth embodiments of the present invention are all applicable to the data processing process and data combination process of the master device.

The host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor. Then, the slave device is a data sending device, including a terminal, a co-processor, a touch control chip (MCU), a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller (MCU), and a fingerprint identification chip And at least one of the fingerprint identification microcontroller (MCU).

The present invention also proposes a slave device capable of staged compression transmission of data based on a data gradation compression transmission method based on internal bus communication of the integrated circuit, and the slave device can be electrically connected to the master through the I ² C bus inside the integrated circuit Device. The slave device includes more than two electronic components. The composition and connection structure of each electronic component enable the slave device to complete at least the following slave device data processing process:

Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; for transmission data that includes Q data words, according to the value of the data word The threshold interval of the data, replace the value of each data word with the threshold interval code of the threshold interval in which it is located, to form interval code data including Q interval code data words;

Set the data word compression/decompression protocol. The data word compression/decompression protocol sets the rules for compressing interval code data words into compressed data words, and the compressed data words are formed into compressed transmission data frames. The compressed data frames are decomposed into compressed data. Word rules and at least one of the rules for decompressing compressed data words into interval code data words; according to the data word compression/decompression protocol, the threshold interval codes of more than two interval code data words are combined into one compressed data word , To compress Q interval code data words into R compressed data words, R<Q, the R compressed data words form a compressed transmission data frame;

Send the compressed transmission data frame to the master device.

In order to further improve the amount of data compression, the slave device can also complete data decomposition. The composition and connection structure of the electronic components of the slave device enable the slave device to complete the following data decomposition process:

Decompose the transmission data of one frame into at least G subframe transmission data, G≥2;

After the G subframe transmission data respectively passes through the slave device data processing process, the slave device sends the G subframe compressed transmission data frame to the master device.

The above first to fourth embodiments of the present invention are all applicable to the slave device data processing process and data decomposition process.

The slave device is a data sending device, including a terminal, a co-processor, a touch control chip, a touch control microcontroller (MCU), a pressure detection chip, a pressure detection microcontroller (MCU), a fingerprint recognition chip, and a fingerprint Identify at least one of the microcontrollers (MCU). Then, the host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor.

The invention also proposes an electronic device capable of data compression compression transmission based on the data compression compression transmission method based on the internal bus communication of the integrated circuit. The electronic equipment includes mobile communication terminals, tablet computers, video/audio players, personal computers, various data transceivers, various measuring instruments, various sensors, etc. The electronic device includes at least one master device and at least one slave device, and the master device and the slave device are electrically connected to each other by an I ² C bus bar inside the integrated circuit.

The slave device includes more than two electronic components. The composition and connection structure of each electronic component of the slave device enable the slave device to complete at least the following slave device data processing process:

Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; for transmission data that includes Q data words, according to the value of the data word The threshold interval of the data, replace the value of each data word with the threshold interval code of the threshold interval in which it is located, to form interval code data including Q interval code data words;

Set the data word compression/decompression protocol. The data word compression/decompression protocol sets the rules for compressing interval code data words into compressed data words, and the compressed data words are formed into compressed transmission data frames. The compressed data frames are decomposed into compressed data. Word rules and at least one of the rules for decompressing compressed data words into interval code data words; according to the data word compression/decompression protocol, the threshold interval codes of more than two interval code data words are combined into one compressed data word , To compress Q interval code data words into R compressed data words, R<Q, the R compressed data words form a compressed transmission data frame;

Send the compressed transmission data frame to the master device.

The main device includes more than two electronic components. The composition and connection structure of each electronic component of the main device enable the main device to complete at least the following main device data processing process:

The master device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decompresses R compressed data words into interval code data including Q interval code data words.

The data processing process based on the data compression process based on the internal bus communication of the integrated circuit includes a master device data processing process and a slave device data processing process.

In order to further increase the amount of data compression, the master device and the slave device can also cooperate to complete the data decomposition/combination.

The composition and connection structure of the electronic components of the slave device enable the slave device to complete the following data decomposition process:

Decompose the transmission data of one frame into at least G subframe transmission data, G≥2;

After the G subframe transmission data passes through the slave device data processing process, the slave device sends the G subframe compressed transmission data frame to the master device.

The composition and connection structure of the electronic components of the main device enable the main device to complete the following data combination process:

The master device performs the data processing of the master device on the G subframe compressed transmission data frames respectively, so as to decompress to obtain G subframe interval code data;

The master device integrates the G subframe interval code data into a whole frame of interval code data.

The process of data decomposition/combination based on the data gradation compression transmission method based on the internal bus communication of the integrated circuit includes the above data decomposition process and data combination process.

The host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor. The slave device is a data sending device, including a terminal, a co-processor, a touch control chip, a touch control microcontroller (MCU), a pressure detection chip, a pressure detection microcontroller (MCU), a fingerprint recognition chip, and a fingerprint Identify at least one of the microcontrollers (MCU).

In the first embodiment of the present invention, the master device and the slave device are arranged one-to-one.

The master device and the slave device may be one-to-many. According to a fifth embodiment of the present invention, as shown in FIG. 10, the electronic device is an electronic device 4 with touch screen, pressure detection, and fingerprint recognition functions. The electronic device is, for example, a mobile communication called a mobile phone in most cases. The terminal not only has a touch screen input function, but also has a pressure detection function and a fingerprint recognition function for detecting the touch force. The electronic device 4 includes a master device 1 and three slave devices 2. The master device 1 is a central processor 111, and the slave device 2 includes touches for electrically performing touch screen functions that are electrically connected to the central processor 111, respectively. The control chip 211, the pressure detection chip 212 for completing the pressure detection function, and the fingerprint identification chip 213 for completing the fingerprint identification function. The electronic device 4 is also provided with various other devices necessary to realize its function.

In the case where multiple master devices need data from the same slave device, the master device and the slave device may also be in a many-to-one configuration, that is, two or more master devices are electrically connected to the same slave device.

The steps in the methods of the embodiments of the present application can be adjusted, merged, and deleted sequentially according to actual needs.

The above description of the embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown in this document, but shall conform to the widest scope consistent with the principles and novel features disclosed in this document.

The above is only the preferred embodiment of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of this application, a number of improvements and retouches can be made. These improvements and Retouching should also be regarded as the scope of protection of this application.

1‧‧‧Master device 2‧‧‧Slave device 4‧‧‧Electronic equipment 111‧‧‧ CPU 211‧‧‧Touch control chip 212‧‧‧Pressure detection chip 213‧‧‧Fingerprint recognition chip

FIG. 1 is a schematic diagram of a transmission data matrix of the first embodiment of the “data hierarchical compression transmission method and devices and electronic equipment implementing the method” of the present invention; 2 is a schematic diagram of the interval code data word matrix after the first-order binary conversion of the transmission data shown in FIG. 1; FIG. 3 is a schematic diagram of a data packet structure that transforms the interval code data words described in FIG. 2 into compressed data words; 4 is a schematic diagram of a compressed data frame in which the extended data in the data packet of the first embodiment is converted from interval code data words to compressed data words; FIG. 5 is a schematic diagram of the interval code data word matrix after the fourth-order conversion of the transmission data according to the second embodiment of the present invention; FIG. 6 is a three-dimensional schematic diagram of the interval code data word matrix after the fourth-order conversion of the transmission data of the second embodiment; FIG. 7 is a schematic diagram of contour codes of the interval code data word matrix of the transmission data shown in FIG. 6 after fourth-order conversion; FIG. 8 is a schematic diagram of the interval code data word matrix after the transmission data is decomposed into two groups of transmission data and subjected to first-order conversion according to the third embodiment of the present invention; FIG. 9 is a schematic diagram of a data packet structure using extended data as transmission data according to a fourth embodiment of the present invention; and 10 is a schematic diagram of the electrical principle of the fifth embodiment of the present invention.

Claims (18)

A data compression and transmission method based on internal bus communication in integrated circuits, which includes: In the communication between the master device and the slave device electrically connected through the internal bus of the integrated circuit, the following data processing process is performed on the transmission data, Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; For transmission data that includes Q data words, Q is a natural number, and according to the threshold interval where the value of the data word is located, the value of each data word is replaced with the threshold interval code of the threshold interval where the data word is located, forming Q Section code data of section code data; Set the data word compression/decompression protocol. The data word compression/decompression protocol sets the rules for compressing interval code data words into compressed data words, and the compressed data words are formed into compressed transmission data frames. The compressed data frames are decomposed into compressed data. At least one of the rules of the word and the rules of decompressing the compressed data word into the interval code data word; According to the data word compression/decompression protocol, the threshold interval code of more than two interval code data words is combined into one compressed data word, so that Q interval code data words are compressed into R compressed data words, R is a natural number, R <Q, the R compressed data words form a compressed transmission data frame; The slave device sends the compressed transmission data frame to the master device; and The main device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decompresses R compressed data words into interval code data including Q interval code data words. As described in claim 1, the data gradation compression transmission method based on the internal bus communication of the integrated circuit, wherein: The data packet transmitted by the bus within the integrated circuit includes basic data and extended data; the transmission data in this method is the extended data in the data packet. As described in claim 2, the data gradation compression transmission method based on the internal bus communication of the integrated circuit, wherein: The extended data is the extended data of the touch screen gesture recognition algorithm, the extended data of the touch screen proximity sensing algorithm, the extended data of the touch screen waterproof algorithm, the extended data of the highly sensitive suspension algorithm and the pressure detection algorithm. At least one of the expansion materials. As described in claim 3, the data gradation compression transmission method based on the internal bus communication of the integrated circuit, wherein: The Q data words are a data channel matrix including X×Y data channels, and each data channel is a data word, that is, Q=X×Y. As described in claim 1 or 4, the data compressing transmission method based on the internal bus communication of the integrated circuit, where: Z=1, that is, setting a data threshold TH ₁ to form 2 threshold intervals (-∞ , TH ₁ ] and (TH ₁ , +∞); the one-bit threshold code for the two threshold intervals is 0 or 1; then, use the threshold of the threshold interval for each data word value Value interval code replacement is to replace Q data words with Q binarized interval code data words. As described in claim 5, the data gradation compression transmission method based on the internal bus communication of the integrated circuit, wherein: The value of the data word is a 16-bit binary code; the value of the compressed data word is an 8-bit binary code; Then, the 8 interval code data words are compressed into one compressed data word, so that R=Q/8. The data compressing transmission method based on the internal bus communication of the integrated circuit as described in claim 1 or 2, wherein: The data word compression/decompression protocol sets at least one of the following, When data word is compressed, the rules of the interval code data word selected to be compressed into a compressed data word; When the data word is compressed, the sequence of the data word compressed into the compressed data word is sorted; When the data words are compressed, the arrangement order of the compressed data words; When the data word is decompressed, the decompression sequence of the compressed data word; When the data word is decompressed, the compressed data word is decomposed into the order of the code data words in each interval; and, When the data word is decompressed, the data words of each interval code that are decomposed into are restored and sorted. The data compressing transmission method based on the internal bus communication of the integrated circuit as described in claim 1 or 2, wherein: The main device is a receiving device for transmitting data, including at least one of a host computer, a central processor, a main processor of a touch screen, a main processor of a pressure detection device, and a main processor of a fingerprint recognition device; The slave device is a transmission data transmission device, including terminal, coprocessor, touch control chip, touch control microcontroller, pressure detection chip, pressure detection microcontroller, fingerprint recognition chip and fingerprint recognition microcontroller at least one. As described in claim 1, the data gradation compression transmission method based on the internal bus communication of the integrated circuit, wherein: Before performing data processing on the transmitted data, The slave device decomposes a frame of transmission data into at least G subframe transmission data, G≥2; Perform the data processing process on the transmission data of each subframe, so that the master device obtains the G subframe interval code data; The master device integrates the G subframe interval code data into a whole frame of interval code data. A master device capable of compressing and transmitting data in stages can be electrically connected to a slave device by means of an internal bus bar of an integrated circuit. The master device includes: More than two electronic components; the composition and connection structure of each electronic component enables the main device to at least complete the following main device data processing process, The master device receives the compressed transmission data frame sent by the slave device, the master device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decompresses R compressed data words into intervals including Q interval code data words Code information The data word compression/decompression protocol sets rules for compressing interval code data words into compressed data words, rules for compressing compressed data words into compressed transmission data frames, rules for decomposing compressed data frames into compressed data words, and compressed data words Decompression is at least one of the rules of the interval code data word; one compressed data word is formed by compressing the threshold interval code of more than two interval code data words according to the data word compression/decompression protocol, so that Q interval code data words Compressed into R compressed data words, R<Q, the R compressed data words form a compressed transmission data frame; The interval code data including Q interval code data words is converted from the transmission data including Q data words through the following processing, Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; according to the threshold interval where the value of the data word is located, each data word The value of is replaced with the threshold interval code of the threshold interval where it is located to form interval code data including Q interval code data words. As described in claim 10, a master device capable of compressing and transmitting data in stages, wherein: When the slave device decomposes a frame of transmission data into at least G subframe transmission data, G ≥ 2; the slave device sends a G subframe compressed transmission data frame to the master device, then, the electronic components of the master device The composition and connection structure enable the master device to complete the following data combination process, The master device performs the data processing of the master device on the G subframe compressed transmission data frames, so as to decompress to obtain the G subframe interval code data; The master device integrates the G subframe interval code data into a whole frame of interval code data. A master device capable of data compression compression transmission as described in claim 10 or 11, wherein: The host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor; Then, the slave device is a data sending device, including a terminal, a co-processor, a touch control chip, a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller, a fingerprint recognition chip, and a fingerprint recognition microcontroller At least one. A slave device capable of compressing and transmitting data in stages can be electrically connected to a master device by means of an internal bus bar in an integrated circuit, where the slave device includes: More than two electronic components; the composition and connection structure of each electronic component enables the slave device to at least complete the following slave device data processing process, Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; for transmission data that includes Q data words, according to the value of the data word The threshold interval of the data, replace the value of each data word with the threshold interval code of the threshold interval in which it is located, to form interval code data including Q interval code data words; Set the data word compression/decompression protocol. The data word compression/decompression protocol sets rules for compressing interval code data words into compressed data words, rules for compressing compressed data words into compressed transmission data frames, and decompression of compressed data frames into compressed data. At least one of the rules of the word and the rule of decompressing the compressed data word into the interval code data word; according to the data word compression/decompression protocol, the threshold interval code of more than two interval code data words is combined into a compressed data word, Compress Q interval code data words into R compressed data words, R<Q, the R compressed data words form a compressed transmission data frame; and Send the compressed transmission data frame to the master device. A slave device capable of performing stepwise compression transmission as described in claim 13, wherein: The composition and connection structure of the electronic components of the slave device enable the slave device to complete the following data decomposition process, Decompose the transmission data of one frame into at least G subframe transmission data, G≥2; After the G subframe transmission data respectively undergo the data processing process of the slave device, the slave device sends the G subframe compressed transmission data frame to the master device. A slave device capable of data compression transmission as described in claim 13 or 14, wherein: The slave device is a data sending device, including at least a terminal, a co-processor, a touch control chip, a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller, a fingerprint recognition chip, and a fingerprint recognition microcontroller One; Then, the host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor. An electronic device capable of compressing and transmitting data in stages, including: At least one master device and at least one slave device, the master device and the slave device are electrically connected to each other by means of an internal bus bar of the integrated circuit; The slave device includes more than two electronic components; the composition and connection structure of each electronic component of the slave device enables the slave device to complete at least the following slave device data processing process, Set Z data thresholds, Z≥1, to form Z+1 threshold intervals, and set threshold interval codes for each threshold interval; for transmission data that includes Q data words, according to the value of the data word The threshold interval of the data, replace the value of each data word with the threshold interval code of the threshold interval in which it is located, to form interval code data including Q interval code data words; Set the data word compression/decompression protocol. The data word compression/decompression protocol sets rules for compressing interval code data words into compressed data words, rules for compressing compressed data words into compressed transmission data frames, and decompression of compressed data frames into compressed data. At least one of the rules of the word and the rule of decompressing the compressed data word into the interval code data word; according to the data word compression/decompression protocol, the threshold interval code of more than two interval code data words is combined into a compressed data word, Compress Q interval code data words into R compressed data words, R<Q, the R compressed data words form a compressed transmission data frame; Send the compressed transmission data frame to the master device; The main device includes more than two electronic components; the composition and connection structure of the electronic components of the main device enable the main device to complete at least the following main device data processing process, The main device parses the received compressed transmission data frame according to the data word compression/decompression protocol, and decompresses R compressed data words into interval code data including Q interval code data words. An electronic device capable of performing hierarchical compression transmission of data as described in claim 16, wherein: The composition and connection structure of the electronic components of the slave device enable the slave device to complete the following data decomposition process, Decompose the transmission data of one frame into at least G subframe transmission data, G≥2; After the G subframe transmission data passes through the data processing process of the slave device, the slave device sends the G subframe compressed transmission data frame to the master device; The composition and connection structure of the electronic components of the main device enable the main device to complete the following data combination process, The master device performs the data processing of the master device on the G subframe compressed transmission data frames, so as to decompress to obtain the G subframe interval code data; The master device integrates the G subframe interval code data into a whole frame of interval code data. An electronic device capable of performing hierarchical compression transmission of data as described in claim 16 or 17, wherein: The host device is a data receiving device, including at least one of a host computer, a central processor, a touch screen host processor, a pressure detection device host processor, and a fingerprint recognition device host processor; The slave device is a data sending device, including at least a terminal, a co-processor, a touch control chip, a touch control microcontroller, a pressure detection chip, a pressure detection microcontroller, a fingerprint recognition chip, and a fingerprint recognition microcontroller One.

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