TW201345200A - Device and method for transmitting and receiving data - Google Patents

Abstract

A data transmitting device includes a data dividing unit for receiving an original transmitting data and dividing the original transmitting data into a plurality of dividing data, a data generating unit for generating a plurality of packet data according to the plurality of dividing data and a plurality of clock information, wherein each of the clock information is a multi-bit data, and a data outputting unit for outputting the plurality of packet data to a data receiving device, wherein each of the packet data includes a dividing data and a clock information, each of the packet data corresponds to a transmitting data period, the dividing data corresponds to a dividing data period of the transmitting data period and the clock information corresponds to a clock period of the transmitting data period.

Description

Apparatus and method for transmitting and receiving data

The present invention relates to an apparatus and method for transmitting and receiving data, and more particularly to an apparatus and method for simultaneously transmitting and receiving data including and transmitting data.

Generally speaking, when transmitting data (Transmitter, TX) and receiving end (Receiver, RX), in addition to the mechanism for transmitting/receiving data, a mechanism for transmitting/receiving clock information is required. . When transmitting data in the high-speed interface, in order to improve signal transmission quality, reduce electromagnetic interference (EMI), provide error correction (Error Correction), and save clock circuits, the data to be transmitted is generally encoded in time and time. (encoding) to meet the above requirements.

In addition, in order to reconstruct the clock signal, the conventional clock embedded interface usually adds the clock information needed to recover the clock signal to the data or instruction to be transmitted, so that the clock signal of the operating system can be provided for the clock signal. Normal operation, however, the above operation mode will limit the data transmission efficiency during transmission. Therefore, it is an important subject in the field to provide a more efficient design or coding method of clock information to improve transmission efficiency and improve the application range of the product.

Accordingly, it is a primary object of the present invention to provide an apparatus and method for transmitting and receiving data that includes both clock data and packet data.

The invention discloses a data transmission device, comprising a data dividing unit, configured to receive an original transmission data, and divide the original transmission data into a plurality of divided data; a data generating unit, configured to use the plurality of divided data and the plural a plurality of packet data, wherein each clock data is a multi-bit data; and a data output unit for outputting the plurality of packet data to a data receiving device; wherein each packet data The method includes a segment data and a clock data, wherein each packet data corresponds to a packet data period, and the segment data corresponds to one of the segment data periods during the packet data period and the clock data corresponds to one of the clock periods of the packet data period .

The present invention discloses another data transmission method, including receiving an original transmission data, and dividing the original transmission data into a plurality of divided data; generating a plurality of packet data according to the plurality of divided data and the plurality of clock data, wherein Each clock data is a multi-bit data; and outputting the plurality of packet data to a data receiving device; wherein each packet data includes a segment data and a clock data, wherein each packet data corresponds to a packet data During the period, the segmentation data corresponds to one of the segmentation data periods during the packet data period and the clock data corresponds to one of the clock periods of the packet data period.

Another data receiving device includes a data receiving unit for receiving a plurality of packet data from a data transmitting device, and a data capturing unit for using a clock signal in each of the packet data. And taking out a segmented data, wherein each clock data is a multi-bit data; and a data recombining unit is configured to reconstitute the segment data collected by the data capturing unit into an original transmission data.

The present invention discloses another method for receiving data, comprising receiving a plurality of packet data from a data transmission device; and extracting a segmentation data according to one of the clock signals in each packet data, wherein each clock data is more than one The bit data; and the segmentation data retrieved by the data extraction unit is reconstituted into an original transmission data packet data.

In the present embodiment, a data transmission system 1 is constructed to include a data transmission device 10 and a data receiving device 12, as shown in FIG. The data transmission device 10 includes a data dividing unit 100, a data generating unit 102, and a data output unit 104. The data receiving device 12 includes a data receiving unit 120, a data capturing unit 122, and a data recombining unit 124. In addition, between the data transmission device 10 and the data receiving device 12, a data transmission mechanism between the two is established according to a wired or wireless transmission.

In detail, the data transmission device 10 receives an original transmission data Data_ori through the data dividing unit 100. Preferably, the original transmission data Data_ori includes the original data and/or the original transmission instruction, but is not limited thereto. The data splitting unit 100 further divides the original transmission data Data_ori into a plurality of divided data Data_raw according to a preset transmission protocol (or enables the user to adaptively adjust the transmission protocol according to different requirements) for transmission to the data generation. Unit 102. The data generating unit 102 also receives the clock data CI (or generates a plurality of clock data by itself) and a plurality of divided data Data_raw, and combines each divided data Data_raw with each clock data CI to form a package data PA. Further, a plurality of packet data PA are generated and supplied to the data output unit 104. The data output unit 104 sequentially transmits all the packet data PA to the material receiving unit 120 of the data receiving device 12 in accordance with the aforementioned wired or wireless transmission. Of course, the data receiving unit 120 also complies with the transmission in the wired or wireless manner, and receives the packet data PA and transmits the received packet data PA to the data capturing unit 122. The data capturing unit 122 further includes a determining unit (not shown) for determining whether the clock data CI corresponding to the data generating unit 102 is correctly received and whether the transmission format satisfies a preset format. The data extraction unit 122 further extracts the corresponding segmentation data Data_raw according to the clock data CI of each package data PA. Finally, the data reorganization unit 124 may preset a lookup table (not shown) for reorganizing the extracted segment data Data_raw into the original transmission data Data_ori to complete the data transmission device 10 and the data receiving device 12. Data transmission.

Please refer to FIG. 2, which is a schematic diagram of a package data PA according to an embodiment of the present invention. In detail, the packet data PA satisfies the wired or wireless transmission between the data transmission device 10 and the data receiving device 12 (here, only two packet data PAs are used as an example), and each packet data PA includes a clock. The data CI and the segmentation data Data_raw, wherein the clock data CI is a multi-bit data composed of a plurality of bits, and the segmentation data Data_raw contains at least one element length data. For example, as shown in FIG. 2, M and N respectively represent the number of bits of the clock data CI and the segmentation data Data_raw, where M≧2 and N≧1. Further, each packet data PA corresponds to a packet data period, and the packet data period includes a segment data period and a clock period. The segmentation data Data_raw corresponds to the segmentation data period, and the clock data CI corresponds to the clock period. In this case, for the data transmission device 10, each packet data PA will be transmitted during the corresponding packet data. That is to say, the split data Data_raw will be transmitted during the split data period in the corresponding packet data period. Similarly, the clock data CI will be transmitted during the clock period in the corresponding packet data period. It should be noted that in this embodiment, the clock period of the clock data CI is ahead of the divided data period of the split data Data_raw. That is to say, the clock data CI in each packet data PA is located in front of the segmentation data Data_raw. As shown in Figure 2, all the packet data PA will be connected in series, that is, the data of the previous packet Data_raw is concatenated with the clock data CI of the subsequent packet data. In contrast, in the data receiving device 12, the clock data CI of the packet data PA is received first, and then the segment data Data_raw of the packet data PA is received. Therefore, for each packet data PA, the data capturing unit 122 may extract the corresponding segment data Data_raw after detecting the corresponding clock data CI.

From another point of view, if the composition of the packet data PA in Fig. 2 is changed, the segment data Data_raw originally located in the front packet data PA and the clock data CI of the packet data PA located at the rear side are set as a new packet data. , so that the clock period of the clock data CI is behind the segmentation data period of the segmentation data Data_raw. That is to say, for each packet data PA, the clock data CI is located behind the segmentation data Data_raw, so that in the data receiving device 12, the segmentation data Data_raw in the packet data PA will be received first, and then Only receive the clock data CI. For each packet data PA, the data capturing unit 122 can detect the corresponding segment data Data_raw after detecting the clock data CI of the previous packet data PA. Therefore, those skilled in the art can appropriately adjust the split data Data_raw and the clock data CI relative to the front and rear positions of each package data PA according to different needs of the user, and are not used to limit the present invention.

Notably, the user can further cut each clock data in addition to changing the position of the segmentation data and the clock data relative to each package data. Please refer to FIG. 3, which is a schematic diagram of a package data PA_1 according to an embodiment of the present invention. Compared with the packet data PA in FIG. 2, each packet data PA_1 in FIG. 3 includes a segmentation data Data_raw (N bits) and a pulse data CI_1. The difference is that the clock data CI_1 includes a leading clock data CI_10 (X bits) and a tail clock data CI_12 (Y bits). In addition, the segmentation data Data_raw also corresponds to the segmentation data period, and the preamble clock data CI_10 and the tail end clock data CI_12 respectively correspond to a preamble clock period and a tail end clock period. The leading clock of the leading clock data CI_10 leads the segmentation data period of the segmentation data Data_raw, while the tail clock segment of the tail clock data CI_12 falls behind the segmentation data period of the segmentation data Data_raw, that is, the leading clock data CI_10 Located in front of the split data Data_raw, and the trailing clock data CI_12 is located behind the split data Data_raw. For the data receiving device 12, the leading clock data CI_10, the divided data Data_raw, and the tail clock data CI_12 are sequentially received, so that the divided data Data_raw is clamped by the leading clock data CI_10 and the tail clock data CI_12. The way to form each package information PA. In this way, in the data receiving device 12, the data capturing unit 122 can detect the clock data CI_12 at the end of the previous packet data PA and the current clock data CI_10 before the current packet data PA. Corresponding split data Data_raw.

Briefly, in the present embodiment, the data transmission system 1 establishes a wired or wireless transmission between the data transmission device 10 and the data receiving device 12, and encodes the original transmission data Data_ori into a plurality of packet data PA. Each packet data PA contains a time-lapse data CI and a segmentation data Data_raw. According to different needs, the user can flexibly place the clock data CI in front of and behind the segment data Data_raw, or simultaneously place the clock data CI in front of and behind the segment data Data_raw (ie, into the leading clock data and The tail clock data) is within the scope of the invention. Preferably, for each clock data CI located in front of the divided data Data_raw, in addition to being used as a clock signal (not shown) for reconstructing the data receiving device 12, the user can still provide the user with the clock signal (not shown). For the characteristics of multi-bit data, a combination of different multi-bit data is further designed to be provided to different applications. For example, it is used to inform the user of the data receiving device 12 when to start receiving the divided data Data_raw, or to transmit a control command to the data receiving device 12 by the data transmitting device 10. For example, the last two bits of the multi-bit clock data CI are set to a value of 01, and the moment when the digital signal 0 becomes 1 is used as a trigger signal (mechanism) to prepare for the data transmission device 10 to start. After transmitting the packet data PA to the data receiving device 12, after receiving the data receiving unit 120, the data is transmitted to the determining unit of the data capturing unit 122 for determination, and after confirming that the preset format is satisfied, the data recombining unit 124 corresponds to the operation. Restore back to the original transfer data Data_ori. In the high-speed transmission system, since the change time of the digital signal is very short, the data receiving device 12 has only a very short reaction time to determine whether to perform the data receiving operation. Therefore, the multi-bit clock data CI can also be preset. The last three bits are 001, which allows the clock data CI to wait for the response time of one digital signal, and then informs the data receiving device 12 to receive the packet data PA through the trigger signal (mechanism) that the digital signal changes from 0 to 1. The possibility of the user missing the receipt of the packet data PA is avoided, and the transmission efficiency of the data transmission system 1 is also improved.

In addition, the user can of course design the clock data CI into other types of multi-bit data, and the data transmission device 10 issues a control command to the data receiving device 12, which can be further explained by the following different embodiments. Please refer to FIG. 4, and FIG. 4 is a schematic diagram of the control instruction lookup table Table1 of the PA type of the packet data in FIG. As shown in FIG. 4, the clock data CI of the packet data PA includes five bits, and in this embodiment, the control instruction lookup table Table1 presets six control commands for five bits of the clock data CI. , in order, corresponds to 00001 (increasing current 20%), 00101 (increasing current 40%), 01001 (increasing current 60%), 01101 (increasing current 80%), 10001 (increasing current 100%), and XXXXX (not operating) That is, the user can directly control the operating current value of the data receiving device 12 by changing the bit data of the different clock data CI. In addition, please refer to FIG. 5, and FIG. 5 is a schematic diagram of the control instruction lookup table Table 2 of the packet data PA_1 of FIG. As shown in FIG. 5, the clock data of the packet data PA_1 includes the leading clock data CI_10 (1 bit) and the tail clock data CI_12 (2 bits), and in this embodiment, the control command is searched. Table 2 sets three control commands for the three bits of the leading clock data CI_10 and the tail clock data CI_12, which are sequentially corresponding to 100 (increasing current 50%), 110 (increasing current 100%), and 0XX (not action). Of course, the control command lookup tables Table1 and Table2 shown in FIG. 4 and FIG. 5 are merely exemplary, and a combination of different clock data may be designed to transmit different control commands, which is not intended to limit the scope of the present invention. .

In the wired or wireless transmission of the embodiment, a data transmission method applicable to the data transmission device 10 can be further summarized into a data transmission process 60, as shown in FIG. The data transfer process 60 includes the following steps:

Step 600: Start.

Step 602: The data dividing unit 100 receives the original transmission data Data_ori, and divides the original transmission data Data_ori into a plurality of divided data Data_raw.

Step 604: The data generating unit 102 generates a plurality of packet data PA according to the plurality of segmentation data Data_raw and the plurality of clock data CI.

Step 606: The data output unit 104 outputs a plurality of packet data PA to the data receiving device 12.

Step 608: End.

In addition, in the wired or wireless transmission of the embodiment, the data receiving device 12 is also applicable to a data receiving method, which can be further summarized into a data receiving process 70, as shown in FIG. The data receiving process 70 includes the following steps:

Step 700: Start.

Step 702: The data receiving unit 120 receives a plurality of packet data PA from the data transmitting device 10.

Step 704: The data capturing unit 122 extracts the segmentation data Data_raw according to the clock signal CI in each packet data PA.

Step 706: The data reorganization unit 124 recombines the segmentation data Data_raw captured by the data extraction unit 122 into the original transmission data Data_ori.

Step 708: End.

In other words, according to the data transmission process 60 and the data receiving process 70, it is possible to establish a wired or wireless transmission suitable for the data transmission device 10 and the data receiving device 12 in the data transmission system 1. The packet data PA for transmission is formed by placing the clock signal CI at different positions of the divided data Data_raw, and the purpose of transmitting the original transmission data Data_ori is further completed. For details of the data transmission process 60 and the data receiving process 70, reference may be made to the foregoing embodiments and the descriptions of FIGS. 1 to 5, and details are not described herein.

In summary, the present invention provides an apparatus and method for transmitting and receiving data, by dividing the original transmission data to be transmitted into a plurality of divided data, simultaneously receiving a plurality of clock data, and dividing the plurality of segments. The data and the plurality of clock data are encoded to form a plurality of packets of packet data for establishing a wired or wireless transmission between a data transmission device and a data receiving device in a data transmission system. Of course, the user can also design different types of clock data combinations. In addition to the one-time signal used to reconstruct the data receiving device, the data transmission device also provides a control command to the data receiving device for control purposes. The embodiments of the present invention can improve the transmission efficiency between the data transmission device and the data receiving device, and can also improve the application range of the data transmission system.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1. . . Data transmission system

10. . . Data transmission device

100. . . Data segmentation unit

102. . . Data generation unit

104. . . Data output unit

12. . . Data receiving device

120. . . Data receiving unit

122. . . Data acquisition unit

124. . . Data reorganization unit

60. . . Data transmission process

70. . . Data receiving process

600, 602, 604, 606, 608, 700, 702, 704, 706, 708. . . step

CI, CI_1, CI_10, CI_12. . . Clock data

Data_ori. . . Original transmission data

Data_raw. . . Split data

M, N, X, Y. . . Number of bits

PA, PA_1. . . Packet information

Table1, Table2. . . Control instruction lookup table

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

FIG. 2 is a schematic diagram of a package data according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of another packet data according to an embodiment of the present invention.

Figure 4 is a schematic diagram of the control instruction lookup table of the packet data type in Fig. 2.

Figure 5 is a schematic diagram of the control instruction lookup table of the packet data type in Fig. 3.

FIG. 6 is a schematic diagram of a data transmission process according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a data receiving process according to an embodiment of the present invention.

CI. . . Clock data

Data_raw. . . Split data

M, N. . . Number of bits

PA. . . Packet information

Claims (20)

A data transmission device comprises: a data dividing unit, configured to receive an original transmission data, and divide the original transmission data into a plurality of divided data; a data generating unit, configured to use the plurality of divided data and the plurality of The clock data generates a plurality of packet data, wherein each clock data is a multi-bit data; and a data output unit is configured to output the plurality of packet data to a data receiving device; wherein each packet data includes There is a segment data and a clock data, and each packet data corresponds to a packet data period, and the segment data corresponds to one of the segment data periods during the packet data period and the clock data corresponds to one of the clock periods of the packet data period. The data transfer device of claim 1, wherein the clock period is ahead of the divided data period for each of the package data periods. The data transfer device of claim 1, wherein the clock period lags behind the divided data period for each of the package data periods. The data transmission device of claim 1, wherein the clock data includes a leading clock data and a tail clock data for each of the packet data, wherein the clock period includes a leading clock period and a tail During the end clock period, the leading clock data corresponds to the leading clock period, and the tail clock data corresponds to the tail clock period. The data transfer device of claim 4, wherein the leading clock period is ahead of the divided data period, and the trailing clock period lags behind the divided data period. The data transfer device of claim 1, wherein the last two bit values of each clock data are 01. A data transmission method includes: receiving an original transmission data, and dividing the original transmission data into a plurality of divided data; generating a plurality of packet data according to the plurality of divided data and the plurality of clock data, wherein each time The pulse data is a multi-bit data; and outputting the plurality of packet data to a data receiving device; wherein each packet data includes a segment data and a clock data, and each packet data corresponds to a packet data period, The segmentation data corresponds to one of the segmentation data periods during the packet data period and the clock data corresponds to one of the clock periods of the packet data period. The data transfer method of claim 7, wherein the clock period is ahead of the divided data period for each of the package data periods. The data transfer method of claim 7, wherein the clock period lags behind the divided data period for each of the package data periods. The data transmission method of claim 7, wherein the clock data includes a leading clock data and a tail clock data for each of the packet data, the clock period including a leading clock period and a tail During the end clock period, the leading clock data corresponds to the leading clock period, and the tail clock data corresponds to the tail clock period. The data transfer method of claim 10, wherein the leading clock period is ahead of the divided data period, and the trailing clock period lags behind the divided data period. The data transfer method of claim 7, wherein the last two bit values of each clock data are 01. A data receiving device comprises: a data receiving unit for receiving a plurality of packet data from a data transmitting device; and a data capturing unit for extracting one according to a clock signal in each of the packet data The data is divided, wherein each clock data is a multi-bit data; and a data reorganization unit is configured to reconstitute the segment data collected by the data extraction unit into an original transmission data. The data receiving device of claim 13, wherein the data capturing unit determines that the last two bit values of each clock data are 01, and starts to extract the divided data from the packet data. The data receiving device of claim 13, wherein the clock data includes a leading clock data and a tail clock data for each of the packet data, wherein the clock period includes a leading clock period and a tail During the end clock period, the leading clock data corresponds to the leading clock period, and the tail clock data corresponds to the tail clock period. The data receiving device of claim 15, wherein the leading clock period is ahead of the divided data period, the trailing clock period lags behind the divided data period, and the data capturing unit is based on the previous packet data The trailing clock data and the leading clock data of the current packet data are taken out of the segmented data. A data receiving method includes: receiving a plurality of packet data from a data transmission device; and extracting a segmentation data according to one of the clock signals in each packet data, wherein each clock data is a multi-bit data And reorganizing the segmentation data captured by the data acquisition unit into an original packet data. The data receiving method of claim 17, wherein the step of extracting the divided data according to the clock signal in each of the package data comprises: determining the last of each of the clock data in each of the package data Two bit values, and when the last two bit values of each clock data are 01, the segmentation data is extracted from the packet data. The data receiving method of claim 17, wherein the clock data includes a leading clock data and a tail clock data for each of the packet data, wherein the clock period includes a leading clock period and a tail During the end clock period, the leading clock data corresponds to the leading clock period, and the tail clock data corresponds to the tail clock period. The method for receiving data according to claim 19, wherein the step of extracting the divided data according to the clock signal in each package data comprises: the tail clock data and the current packet data according to the previous package data The preamble clock data is used to extract the segmentation data, wherein the preamble clock period is ahead of the segmentation data period, and the tail end clock period lags behind the segmentation data period.