Lead code sending method and device and lead code receiving method and device

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] It should be noted that the specification and claims of the present invention and the terms "first", "second", "second" or the like are used to distinguish a similar object without having to describe a particular order or ahead order.

[0035] The method embodiments provided in the present application embodiment can be performed in a computer terminal or a similar arithmetic device. Take it in the computer terminal, figure 1 It is a hardware configuration block diagram of a computer terminal of a pre-transmitted processing method of an embodiment of the present invention. Such as figure 1 As shown, the computer terminal can include one or more ( figure 1 Only one) processor 102 (processor 102 can include, but is not limited to, processing means for storing data) and memory 104 for storing data, wherein said computer terminals may also include Transmission device 106 for communication functions and input output device 108. One of ordinary skill in the art will appreciate that figure 1 The structure shown is only schematic, and does not limit the structure of the above computer terminal. For example, the computer terminal can also include a ratio figure 1 More or fewer components shown in, or have figure 1 Different configurations.

[0036] Memory 104 can be used to store computer programs, such as software programs, and modules, such as processing methods of transmission methods of preambles in the embodiment of the present invention, processor 102, by running a computer program stored within memory 104 Alternatively, various functional applications and data processing are performed, that is, the above method is implemented. Memory 104 can include a high speed random memory, further comprising a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memories. In some examples, memory 104 can further include a memory remotely disposed relative to processor 102, which can be connected to the computer terminal over a network. Examples of the above network include, but are not limited to, Internet, corporate internal networks, local area networks, mobile communication networks and combinations thereof.

[0037] The transmission device 106 is configured to receive or transmit data via a network. The above network specific examples can include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (NIC), which can communicate with the Internet via the base station to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (referred to as an RF) module, which is used to communicate with the Internet via a wireless manner.

[0038] According to an aspect of the embodiment of the present invention, a pre-transmission method of a preamble is provided, optionally, as an alternative embodiment, the preamble method can be, but not limited to, to be applied to figure 2 The environment shown.

[0039] Alternatively, in the present embodiment, a system of PON is provided, and PON is a passive light network of point-to-multi-point (P2MP) structure; PON is connected by optical line terminal OLT, optical network unit ONU and passive The spectroscope POS (PASSIVE OPTICALSPLITER, INTRM) is composed; in turn, it will achieve PSTN (PUBLIC SWITETELEPHONE NETWORK, referred to as public switch terminal OLT, defined as public exchange telephone network), Internet, social public TV antenna system ( The information in Community Antenna Television, the referms of CATV is transmitted to a plurality of optical network units ONU through the PON system, and the above is merely an example, which is not limited in this embodiment.

[0040] In this embodiment, a method of transmitting a preamble of the above computer terminal is provided. image 3 It is a flow diagram of a transmission method of a preamble according to an embodiment of the present invention, such as image 3 As shown, the process includes the following steps:

[0041] Step S202 transmits a preamble comprising two or more types of code sequences, wherein the two or more types of code sequences include: a first code sequence and a second pattern sequence.

[0042] Optionally, the first code sequence can be used for clock recovery, the second code type sequence can be used for equalizer training convergence.

[0043] By the present invention, a preamble containing two or more types of code type sequences, wherein the two or more types of code sequences include: a first pattern sequence and a second pattern sequence, that is, passed Supports the preamble to support different pattern sequences, using the function corresponding to the different pattern sequences to realize the rapid transmission of the preamble, and enhance the transmission efficiency after the rate of increasing the passive fiber network is improved. , Reduce processing delay. With the above technical solution, in the relevant technologies, the preamble is not conducive to equalizer convergence, which can cause long-equalization time, reduce transmission efficiency, increase processing delay.

[0044] Wherein, the execution body of the above step can be a base station, a terminal, or the like, but is not limited thereto.

[0045] In an exemplary embodiment, the method further comprises: acquiring configuration information of the preamble in the target message and configuring information, so that the front guideline of the target message supports the two or more or more. Code sequence.

[0046] That is, in order to better enable the preamble in the target message to be transmitted, after confirming the target message required to transmit, the configuration information of the target message is acquired, according to the two or more types of pattern sequences to be transmitted. The preamble pattern sequence is re-constructed on the configuration information of the target message, so that the preamble of the reconstructed target message supports the transmission of two or more types of code sequences.

[0047] In an exemplary embodiment, the configuration information of the preamble in the target message is acquired and the configuration of the configuration information is obtained, so that the preamble of the target message supports the two or more types of code type sequences. The above method also includes setting the preamble regularly in the target message, wherein the transmitting rule is configured to indicate a sequence of transmission sequences of the first code sequence and a second code sequence, and The transmitting rule includes at least one of the first code sequences of the first target length and the second target length of the second target length; the first code sequence of the third target length is continuously transmitted, and the first sequence of continuously sent After the one-yard sequence is sent, the second pattern sequence of the fourth target length is transmitted; the second type sequence of the fifth target length is continuously transmitted, and the sixth target length is transmitted after the continuous transmission of the second code sequence. The first code sequence.

[0048] Briefly, in order to ensure that the re-construct in the target message can be sent in order, it is also possible to set the transmission rule of the construction of the preamble after the target message, so that the two or two types contained in the re-constructed preamble. The first code sequence of two or more type sequences is alternately transmitted by the second code type sequence, thereby improving transmission efficiency.

[0049] In an exemplary embodiment, the configuration information of the preamble in the target message is acquired, and the configuration of the configuration information is obtained, so that the preamble of the target message supports the two or more types of pattern sequences. Including: In the first target byte of the first code sequence into the target message, the first target byte is used to set at least one of the following: front guiding length, front guide repetition count The leading mode; the target queue of the second pattern sequence is added to the second target byte in the target message, wherein the second target byte is a blank to be filled with byte.

[0050] In an exemplary embodiment, the above method further comprises: setting the length of the second pattern sequence in the target queue; setting the number of repeated counts of the second pattern sequence in the target queue; The code type of the second pattern sequence is set in the target queue; the number of repetitions of the alternating retransmission of the first pattern sequence and the second code type sequence is set in the target queue.

[0051] For example, when the target message is the Burst Proflie PLOAM message, the relevant field of the BURST Proflie PLOAM message is defined by the existing standard, and the length of the first size sequence can be represented by the 16th byte of the standard definition. Section represents the number of repetitions of the first size sequence, the first code type of the first size sequence in the preamble is indicated; the 34th byte represents the length of the second code sequence, the 35th byte is represented The number of repetitions of the biphotographic sequence, the 36-40 bytes represent the code type of the second pattern sequence; or the code type of the second pattern sequence can also be used, and the 40-byte representation The number of repetitions transmitted by a single-yard sequence and the second code sequence.

[0052] It should be noted that the definition of the different bytes is not limited to the above, but also indicate the number of repetitions of the first code type sequence and the second pattern sequence, or the 34th byte representation The number of repetitions of the biphotographic sequence, the 40th byte represents the number of repetitions of the first size sequence, and the above is merely an example, and the present invention may not be used in addition to the settings.

[0053] In an exemplary embodiment, the method further includes confirming that the preamble is supported by the target value of the target byte of the target byte of the preamble. Sequence, where the first code sequence is used for clock recovery, the second code type sequence for equalizer training convergence.

[0054] In order to ensure that the preamble is placed in the preamble, two or more type pattern sequences can be supported, after the configuration is completed, the preamble can be confirmed in the case where the value of the target byte of the preamble is configured. A first size sequence and a second pattern sequence are supported.

[0055] For example, the 5th byte of the 5th byte of the existing standard defined BURST Proflie PLOAM message can be defined to indicate whether a preamble of multiple type types is supported, wherein the fifth byte is an eight-bit byte in the VVVV0FPP. When the fifth bit (BINARY DITI, the BIT) is 0, the BURST Proflie PLOAM message does not support a multi-type pattern preamble. When the fifth bit is 1, the Burst Proflie PLOAM message supports a variety of code. Type preamble.

[0056] Figure 4 It is a flow diagram of the receiving method of the preamble according to an embodiment of the present invention, such as Figure 4 As shown, the process includes the following steps:

[0057] Step S302 receives a preamble comprising two or more types of code sequences, wherein the two or more types of code sequences include: a first code sequence and a second code sequence.

[0058] Optionally, the first code sequence is used for clock recovery, the second code type sequence for equalizer training convergence.

[0059] With the present invention, a preamble comprising two or more or more type sequences is received, wherein the two or more types of code type sequences include: a first pattern sequence and a second pattern sequence, wherein The first code sequence is used for clock recovery, and the second code type sequence is used for equalizer training convergence, that is, by supporting the preamble to support different pattern sequences, the functionality of different pattern sequences can be implemented to the preamble. The fast transmission of the code, in turn, it is possible to quickly equalize the transmission efficiency after the rate of increasing passive fiber network, improve transmission efficiency, and reduce processing delay. With the above technical solution, in the relevant technologies, the preamble is not conducive to equalizer convergence, which can cause long-equalization time, reduce transmission efficiency, increase processing delay.

[0060] In an exemplary embodiment, the method further includes confirming the clock corresponding to the target message when receiving signal hopping of the first code sequence containing the prior code sequence, confirming that the target message appears when the target message occurs. Information; the target message of the occurrence signal hop will be clock recovery based on the clock information.

[0061]Since the first code sequence is used for clock recovery, the first code sequence contains more signal hopping information, with rich clock information, for example, the first size sequence can be 1010 type 0 and 1 interval When the same bit number of code sequences, further, when the clock information corresponding to the signal hop is carried in the received target message, the clock information can be clocked by the clock information to the clock recovery, which is improved. The processing time of the target message is changed, and the transmission efficiency is improved.

[0062] In an exemplary embodiment, the method further includes: in the case where the spectrum distribution and signal hop frequency of the received preamble, the signal hop frequency is received, by the spectral distribution and the signal The hop frequency is trained to the equalizer.

[0063] The second code sequence is used for equalizer training convergence, requiring the second code sequence to have a spectral distribution of the platform, signal hop frequency, 10 bit distribution proximity data, for example, the second code sequence can be a pseudo-random number, thereby It can cause equalization units to have good balance compensation for transport links.

[0064] It should be noted that when the first size sequence and the second code sequence are simultaneously predetermined in advance, in order to facilitate managing and the structure of the target message, one number can be defined for each pattern, for example, The 1010 repeated sequence number is 1, 2 ^ 7-1 pseudo-random code numbered 2, 2 ^ 15-1, can be selected, and the aforementioned embodiment can also be used to represent a pattern length or code. The byte of the sequence is defined as a code sequence number.

[0065] In order to better understand the processing flow of the above preamble, the above technical scheme will be described below, but is not intended to limit the technical solution of the embodiment of the present invention.

[0066] The preferred embodiment of the present invention proposes a new preamble design to enable the preamble comprising two or more type sequences, and the code sequence 1 (corresponding to a first code sequence in the embodiment of the present invention) is used for clock recovery. The code sequence 2 (equivalent to a second pattern sequence in the implementation of the present invention) is used for equalizer training convergence. The code sequence 1 and the code type sequence 2 may be a code type sequence 2, which is alternately transmitted or first sends a certain length of the code sequence 2, or sequence sequence 2, which continuously transmits a certain length, then sends a certain length. Code sequence 1.

[0067] Optionally, the code type sequence 1 for clock recovery can be designed to include the most signal hop, including rich clock information, such as 1010 sequence, facilitating clock recovery. The code-like sequence 2 for equalizer training converge needs to have the spectral distribution of the platform, the signal hop frequency, 10 bit distribution proximity data, so that the pseudo-random sequence can be used to make the equalizer have a good balance for the transmission link. make up.

[0068] The PON system ONU is a slave device, requiring an OLT to send the preamble information to the ONU. In GPON (GigaBit-CapablePassive Optical Networks, there is a Gigabit "passive light, referred to as GPON), and XGPON is sent via the BURSTPROFILE PLOAM message. The alternative embodiment of the present invention constructs a new PROFILE message that supports two types of pattern, which is small, which is small, which is small, compatible with existing standards. Table 1 is the Burst Profile message format defined by existing ITU-T G.989.3.

[0069] Table 1

[0070] TABLE 11-4-BURST_PROFILE MESSAGE-TWDM FORMAT OPTION

[0071]

[0072] TABLE 11-4-BURST_PROFILE MESSAGE-TWDM FORMAT OPTION

[0073]

[0074] TABLE 11-4-BURST_PROFILE MESSAGE-TWDM FORMAT OPTION

[0075]

[0076] The alternative embodiment of the present invention also provides a construction method of a BURST Profile message that uses the 5th byte of the existing standard defined Burst Proflie PLOAM message to indicate whether multiple pattern type preambles are supported, using existing standards The preamble-related field indicates the correlation definition of the code sequence 1, such as the length of the syndrome sequence 1, and the 17th byte represents the number of repetitions of the code sequence 1, and the 18-25 bytes represent the preamble. Code sequence 1; using the 34-40 bytes of the existing standard Indicates the length of the code sequence 2, the correlation definition of the pattern, and the combination of the code sequence 1 and the code sequence 2, and the like.

[0077] Optional, when the fifth bit (BIT) is 0, the BURST Proflie PLOAM message does not support a multi-type preamble. When the fifth bit is 1, the Burst Proflie Ploam message supports a variety of The preamble of the pattern can also define 1 for the Burst Proflie PLOAM message that does not support a plurality of pattern type preambles, and 0 for the Burst Proflie PLOAM message supports a plurality of pattern type preambles, and the optional embodiment of the present invention does not do this Excessive defined.

[0078] Optionally, when constructing the 34-40 bytes in the existing standard, the length of the code type sequence 2 can be used in the 34th byte, and the code sequence 2 is indicated by the 35th byte, and the number 36-40 bytes. Indicates the pattern type of the code sequence 2; or the 36-39 byte represents the pattern type of the code sequence 2, and the 40th byte represents the number of repetitions transmitted by the code sequence 1 and the code type sequence 2, specifically, as follows 2 shows:

[0079] Table 2

[0080]

[0081] For the definition of the above different bytes, it is not only limited to the above, but also indicates the number of repetition sequences and the second code sequence alternately transmitted by the 34th byte, or the 34th byte represents the second pattern sequence. Number of repetitions, the 40th byte represents the number of repetitions of the first size sequence, and the above is merely examples, and the optional embodiment of the present invention may not be done in addition to other means.

[0082] It should be noted that when the code sequence 1 and the pattern sequence 2 are predetermined several type sequences, each pattern type can be defined, such as 1010 repeated sequence numbers 1, 2 ^ 7- 1 The pseudo-random code number number 2,2 ^ 15-1 is 3. The byte of the pattern length or pattern sequence in the foregoing method is defined as the code type sequence number.

[0083] According to the above technical solution, the preferred embodiment of the present invention proposes a predetermined transmission method of a preamble, by transmitting a preset of the pattern sequence 1 and the pattern sequence 2 by transmitting a predetermined sequence sequence 2 Features, the message containing the preamble of the above-described pattern sequence can be transmitted more quickly, that is, by supporting the preamble to support the front code, the fast transmission of the preamble is realized by the function corresponding to the different pattern sequences, and Implementing a fast balance convergence after increasing the passive fiber network rate, improve transmission efficiency, reduced processing delay.

[0084] Through the description of the above embodiments, those skilled in the art will clearly understand that the method according to the above embodiment can be implemented by means of software plus necessary general hardware platform, of course, can also pass hardware, but in many cases, the former is More preferred embodiments. Based on this understanding, the technical solution of the present invention essentially contributes to the prior art to reflect in the form of software products, the computer software product stores in a storage medium (such as ROM / RAM, disk, In an optical disc, including a number of instructions to enable a terminal device (can be a mobile phone, computer, server, or network device, etc.) to perform the various embodiments of the present invention.

[0085] In the present embodiment, a preamble transmitting device is also provided, the apparatus for implementing the above embodiments and preferred embodiments, and will not be described later. As used herein, the term "module" can achieve a combination of software and / or hardware of a predetermined function. Although the apparatus described below is preferably implemented in software, the implementation of hardware, or combinations of software and hardware may also be conceived.

[0086] Figure 5 The structural block diagram of the transmitting apparatus according to the embodiment of the present invention, such as Figure 5 As shown, the apparatus includes:

[0087] The transmitting module 42 is configured to transmit a preamble containing two or more or more type sequences, wherein the two or more types of code sequences include: a first code sequence and a second code type sequence.

[0088] By the present invention, a preamble containing two or more types of code type sequences, wherein the two or more types of code sequences include: a first pattern sequence and a second pattern sequence, that is, passed Supports the preamble to support different pattern sequences, using the function corresponding to the different pattern sequences to realize the rapid transmission of the preamble, and enhance the transmission efficiency after the rate of increasing the passive fiber network is improved. , Reduce processing delay. With the above technical solution, in the relevant technologies, the preamble is not conducive to equalizer convergence, which can cause long-equalization time, reduce transmission efficiency, increase processing delay.

[0089] In an exemplary embodiment, the apparatus further comprises: acquiring module 44 for acquiring configuration information of the preamble in the target message and configuring information, so that the front guideline of the target message supports said Two or more types of pattern sequences.

[0090] That is, in order to better enable the preamble in the target message to be transmitted, after confirming the target message required to transmit, the configuration information of the target message is acquired, according to the two or more types of pattern sequences to be transmitted. The preamble pattern sequence is re-constructed on the configuration information of the target message, so that the preamble of the reconstructed target message supports the transmission of two or more types of code sequences.

[0091] In an exemplary embodiment, the device further comprises: the first setting module 46 for setting the transmitting rule of the preamble in the target message, wherein the transmission rule is configured to indicate the first code sequence. The sequence of transmission and the transmission rules include at least one of the following: alternately transmitting a first type sequence of the first target length and a second type sequence of the second target length; continuously transmitting the third object. The first code sequence of the length, after the continuous transmission is completed, transmits a second pattern sequence of the fourth target length; continuously transmitting a second type sequence of the fifth target length, in continuous transmission The second code sequence transmits the first code sequence of the sixth target length after the transmission is completed.

[0092] Briefly, in order to ensure that the re-construct in the target message can be sent in order, it is also possible to set the transmission rule of the construction of the preamble after the target message, so that the two or two types contained in the re-constructed preamble. The first code sequence of two or more type sequences is alternately transmitted by the second code type sequence, thereby improving transmission efficiency.

[0093]In an exemplary embodiment, the acquisition module 48 is further configured to add the first code sequence to a first target byte in the target message, wherein the first target byte is for Set at least one of the following: The preamble length, the front guide repeat count, the front guide mode; add the target queue of the second pattern sequence to the second target byte in the target message, wherein the second The target bytes are blank to be filled with bytes.

[0094] In an exemplary embodiment, the device further includes: a second setting module 50 for setting the length of the second pattern sequence in the target queue; seting the second code in the target queue. The number of repeated counts of the type sequence; the code type of the second pattern sequence is set in the target queue; the number of repetitions of the alternating resendal resendal resendal resendal sequence of the first pattern sequence and the second pattern sequence is set in the target queue. .

[0095] For example, when the target message is the Burst Proflie PLOAM message, the relevant field of the BURST Proflie PLOAM message is defined by the existing standard, and the length of the first size sequence can be represented by the 16th byte of the standard definition. Section represents the number of repetitions of the first size sequence, the first code type of the first size sequence in the preamble is indicated; the 34th byte represents the length of the second code sequence, the 35th byte is represented The number of repetitions of the biphotographic sequence, the 36-40 bytes represent the code type of the second pattern sequence; or the code type of the second pattern sequence can also be used, and the 40-byte representation The number of repetitions transmitted by a single-yard sequence and the second code sequence.

[0096] It should be noted that the definition of the different bytes is not limited to the above, but also indicate the number of repetitions of the first code type sequence and the second pattern sequence, or the 34th byte representation The number of repetitions of the biphotographic sequence, the 40th byte represents the number of repetitions of the first size sequence, and the above is merely an example, and the present invention may not be used in addition to the settings.

[0097] In an exemplary embodiment, the device further includes: a first confirmation module 52 for confirming the preamble support first in the case where the value of the target byte of the preamble configuration information The code sequence and the second pattern sequence are used, where the first code sequence is used for clock recovery, and the second pattern sequence is for equalizer training convergence.

[0098] In order to ensure that the preamble is placed in the preamble, two or more type pattern sequences can be supported, after the configuration is completed, the preamble can be confirmed in the case where the value of the target byte of the preamble is configured. A first size sequence and a second pattern sequence are supported.

[0099] Figure 6 The structural block diagram of the receiving apparatus according to the embodiment of the present invention, such as Figure 6 As shown, the apparatus includes:

[0100] The receiving module 54 is configured to receive a preamble comprising two or more types of code sequences, wherein the two or more types of code sequences include: a first pattern sequence and a second pattern sequence.

[0101] Optionally, the first code sequence is used for clock recovery, the second code type sequence for equalizer training convergence.

[0102] With the present invention, a preamble comprising two or more or more type sequences is received, wherein the two or more types of code type sequences include: a first pattern sequence and a second pattern sequence, wherein The first code sequence is used for clock recovery, and the second code type sequence is used for equalizer training convergence, that is, by supporting the preamble to support different pattern sequences, the functionality of different pattern sequences can be implemented to the preamble. The fast transmission of the code, in turn, it is possible to quickly equalize the transmission efficiency after the rate of increasing passive fiber network, improve transmission efficiency, and reduce processing delay. With the above technical solution, in the relevant technologies, the preamble is not conducive to equalizer convergence, which can cause long-equalization time, reduce transmission efficiency, increase processing delay.

[0103] In an exemplary embodiment, the apparatus further comprises: a second determining module 56 confirming that the target message appears in the case of receiving signal hopping of the first code sequence containing the prior code. The clock information corresponding to the signal hop; the target message of the occurrence signal hop will be clocked by the clock information.

[0104] Since the first code sequence is used for clock recovery, the first code sequence contains more signal hopping information, with rich clock information, for example, the first size sequence can be 1010 type 0 and 1 interval When the same bit number of code sequences, further, when the clock information corresponding to the signal hop is carried in the received target message, the clock information can be clocked by the clock information to the clock recovery, which is improved. The processing time of the target message is changed, and the transmission efficiency is improved.

[0105] In an exemplary embodiment, the device further includes: training module 58 for passing through the spectral distribution of the target message and the signal hop frequency, by the signal hop frequency, by The spectral distribution and the signal hop frequency are trained to the equalizer.

[0106] The second code sequence is used for equalizer training convergence, requiring the second code sequence to have a spectral distribution of the platform, signal hop frequency, 10 bit distribution proximity data, for example, the second code sequence can be a pseudo-random number, thereby It can cause equalization units to have good balance compensation for transport links.

[0107] It should be noted that when the first size sequence and the second code sequence are simultaneously predetermined in advance, in order to facilitate managing and the structure of the target message, one number can be defined for each pattern, for example, The 1010 repeated sequence number is 1, 2 ^ 7-1 pseudo-random code numbered 2, 2 ^ 15-1, can be selected, and the aforementioned embodiment can also be used to represent a pattern length or code. The byte of the sequence is defined as a code sequence number.

[0108] It should be noted that the respective modules described above can be implemented by software or hardware, and for the latter, it can be implemented in the same manner, but is not limited thereto: The module is located in the same processor; or each module described above is in any combination The form is located in different processors, respectively.

[0109] Embodiments of the present invention also provide a computer readable storage medium, which stores a computer program in which the computer program is set to run the steps in any of the above method embodiments.

[0110] In an exemplary embodiment, the computer readable storage medium can include, but is not limited to: a U disk, read-only memory, simply referred to as ROM, random access memory (Random Access Memory, referred to as RAM) , Mobile hard drives, disks, or discs, etc., can store media of computer programs.

[0111] Embodiments of the present invention also provide an electronic device, including a memory and a processor stored in a computer program, which is set to run the computer program to perform the steps in any of the above method embodiments.

[0112] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmitting device is connected to the processor, the input / output device and the processor connection.

[0113] Specific examples in this embodiment can refer to the examples described in the above-described embodiments and exemplary embodiments, this embodiment will not be described later.

[0114] Obviously, those skilled in the art will appreciate that the modules or each step of the present invention can be implemented with a general-purpose computing device, which can be concentrated on a single computing device or distributed in a network composed of multiple computing devices. On the upper, they can be implemented with the program code executable by the computing device, thereby being stored in the storage device by the computing device, and in some cases, the display can be performed in the order here. Or the steps described, or separately produce each integrated circuit module, or to create a plurality of modules or steps thereof into a single integrated circuit module. Thus, the invention is not limited to any particular hardware and software binding.

[0115] It is merely preferred embodiments of the present invention, and is not intended to limit the invention, and the present invention can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. according to the present invention should be included within the scope of the invention.