CN110086575A - Coding method, coding/decoding method, relevant apparatus and storage medium - Google Patents
Coding method, coding/decoding method, relevant apparatus and storage medium Download PDFInfo
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- CN110086575A CN110086575A CN201910370353.3A CN201910370353A CN110086575A CN 110086575 A CN110086575 A CN 110086575A CN 201910370353 A CN201910370353 A CN 201910370353A CN 110086575 A CN110086575 A CN 110086575A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
Abstract
The embodiment of the invention discloses a kind of coding method, coding/decoding method, relevant apparatus and storage medium, coding method includes: the first bit stream for obtaining piginal encoded data；Preset logical operation is carried out according to the first bit stream, obtains the second bit stream, the digit of second bit stream is more than the digit of first bit stream；Judge whether last two logical values are identical in the second bit stream, if they are the same, the logical value of at least one of last two positions is carried out to negate processing, obtains third bit stream；It is inserted into the third bit stream first place as flag bit after target position in third bit stream is negated, obtains purpose coded data.The embodiment of the present invention solves the problems, such as that information occurs during transmission without code, to improve signal transmission quality.
Description
Technical field
The present invention relates to coding techniques fields, and in particular to a kind of coding method, coding/decoding method, relevant apparatus and storage are situated between
Matter.
Background technique
Digital signal encoding technology is intended to make Binary Zero/1 digital data converting at certain polarity, amplitude, bit speed
Rate jumps the square-wave waveform of rule.For signal during serial transmission, it includes clock that the data of transmission, which can be encoded into,
The code stream of frequency component, allows receiving end to extract clock synchronization information from code stream, and clock synchronization information can guarantee to connect
Receiving end regenerates initial data according to correct timing from the signal received, however signal is continuous 0 in transmission process
Perhaps receiving end when data are restored always is easy to that phase-shifts or frequency departure can occur when continuous 1 number is excessive,
This mistake is referred to as error code.
Signal is easy to happen error code problem in transmission process in available data transmission technology, and so far, there has been no have
The solution of effect.
Summary of the invention
The embodiment of the present invention provides a kind of coding method, coding/decoding method, relevant apparatus and storage medium, solves information and exists
The error code probability occurred during transmission, to improve signal transmission quality.
To solve the above problems, stating coding method includes: in a first aspect, the application provides a kind of coding method
Obtain the first bit stream of piginal encoded data；
Preset logical operation is carried out according to first bit stream, obtains the second bit stream, second bit stream
Digit is more than the digit of first bit stream；
Judge whether last two logical values are identical in second bit stream, it if they are the same, will be in described last two
The logical value of at least one carry out negating processing, obtain third bit stream；
It is inserted into the third bit stream first place as flag bit after target position in the third bit stream is negated, is obtained
Purpose coded data.
Further, the coding method further include:
When two logical values last in second bit stream are not identical, it is inserted into the target position as normal bit
It is the first to second bit stream, obtain purpose coded data.
Further, first bit stream is 8 data, and second bit stream is 10 data, described according to institute
It states the first bit stream and carries out preset logical operation, obtain the second bit stream, comprising:
First of second bit stream is assigned a value of by the 4th of first bit stream；
First of first bit stream is assigned a value of the second of second bit stream；
The second of first bit stream is assigned a value of to the third position of second bit stream；
The third position of first bit stream is assigned a value of the 4th of second bit stream；
The 5th of second bit stream is assigned a value of by the 4th of first bit stream；
After negating to the 4th of first bit stream, it is assigned a value of the 6th of second bit stream；
The 7th of second bit stream is assigned a value of by the 5th of first bit stream；
The 8th of second bit stream is assigned a value of by the 6th of first bit stream；
The 9th of second bit stream is assigned a value of by the 7th of first bit stream；
The tenth of second bit stream is assigned a value of by the 8th of first bit stream.
It is further, described to judge whether last two logical values are identical in second bit stream, comprising:
Logic NAND operation is carried out to last two logical values, obtains the first operation result；
Logic or operation are carried out to last two logical values, obtain the second operation result；
Logic and operation is carried out to first operation result and the second operation result, obtains third operation result；
When the third operation result is 1, the logical value of continuous two default positions is not identical, when the third
When operation result is 0, the logical value of continuous two default positions is identical.
Second aspect, the application provide a kind of coding/decoding method, which includes:
Obtain corresponding first bit stream of original data to be decoded；
Obtain the zone bit information in first bit stream；
When the value of flag bit value negated for target position in first bit stream, described first is obtained
The default position information of processing is negated when encoding in bit stream；
It carries out negating processing to position is preset in first bit stream, obtains the second bit stream；
Further, the coding/decoding method further include:
Preset logical operation is carried out according to second bit stream and removes the flag bit, obtains decoding data, institute
The digit for stating decoding data is less than the digit of second bit stream.
Further, the coding/decoding method further include:
When the value of the flag bit is the value of target position in first bit stream, according to first bit stream
It carries out preset logical operation and removes the flag bit, obtain decoding data.
The third aspect, the application provide a kind of code device, and the code device includes:
Acquiring unit, for obtaining the first bit stream of piginal encoded data；
Logical unit, for obtaining the second bit stream according to the preset logical operation of first bit stream progress,
The digit of second bit stream is more than the digit of first bit stream；
Coding unit, for judging whether last two logical values are identical in second bit stream, if they are the same, by institute
The logical value for stating at least one of last two positions carries out negating processing, obtains third bit stream；By the third bit stream
Middle target position is used as flag bit to be inserted into the third bit stream first place after negating, obtain purpose coded data.
Fourth aspect, the application provide a kind of decoding apparatus, and the decoding apparatus includes:
First acquisition unit, for obtaining corresponding first bit stream of original data to be decoded；
Second acquisition unit, for obtaining the zone bit information in first bit stream；
Third acquiring unit, for being taken when the value of the flag bit is that target position is negated in first bit stream
When value, the default position information that processing is negated when encoding in first bit stream is obtained；
Decoding unit obtains the second bit stream for carrying out negating processing to position default in first bit stream；According to
Second bit stream carries out preset logical operation and removes the flag bit, obtains decoding data, the decoding data
Digit is more than the digit of second bit stream.
5th aspect, the application provide a kind of storage medium, and the storage medium is stored with a plurality of instruction, and described instruction is suitable
It is loaded in processor, to execute the step in coding method described in above-mentioned first aspect, or to execute above-mentioned
Step in coding/decoding method described in two aspects
By obtaining the first bit stream of piginal encoded data in the embodiment of the present invention, the first bit stream is carried out preset
Logical operation obtains the second bit stream, then by signal judges, negate, be inserted into etc. that processing modes obtain purpose coded data, solves
There is the problem of without code during transmission in information of having determined, to improve signal transmission quality.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is one embodiment flow diagram of coding method provided in an embodiment of the present invention；
Fig. 2 is one embodiment structural schematic diagram of coding/decoding method provided in an embodiment of the present invention；
Fig. 3 is one embodiment structural schematic diagram of code device provided in an embodiment of the present invention；
Fig. 4 is one embodiment structural schematic diagram of decoding apparatus provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instruction such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and cannot understand
For indication or suggestion relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include one or more feature.In the description of the present invention, " more
It is a " it is meant that two or more, unless otherwise specifically defined.
In this application, " exemplary " word is used to indicate " being used as example, illustration or explanation ".Described herein as
Any embodiment of " exemplary " is not necessarily to be construed as or more advantage more more preferable than other embodiments.In order to appoint this field
What technical staff can be realized and use the present invention, gives and is described below.In the following description, it arranges for purposes of explanation
Details is gone out.It should be appreciated that those skilled in the art will realize that the case where not using these specific details
Under the present invention also may be implemented.In other examples, well known structure and process will not be described in detail, to avoid need not
The details wanted makes description of the invention become obscure.Therefore, the present invention be not intended to be limited to shown in embodiment, but with meet
The widest scope of principle and feature disclosed in the present application is consistent.
It is, in general, that digital signal encoding technology is intended to make Binary Zero/1 digital data converting at certain polarity, width
Degree, bit rate jump the square-wave waveform of rule.During serial transmission, the data of transmission can be encoded into signal
Include the code stream of clock frequency component, receiving end is allowed to extract clock synchronization information, clock synchronization information from code stream
It can guarantee that receiving end regenerates initial data according to correct timing from the signal received, however signal is in transmission process
In continuous 0 perhaps continuous 1 number it is excessive when receiving end be easy to occur when data are restored always phase-shifts or
Frequency departure, this mistake are referred to as error code.Signal is easy to happen error code in transmission process and asks in available data transmission technology
Topic, so far, there has been no effective solution schemes.
Based on this, the embodiment of the present invention provides a kind of coding method, coding/decoding method, relevant apparatus and storage medium.Once
It is described in detail respectively.
Firstly, providing a kind of coding method in the embodiment of the present invention, which includes: to obtain piginal encoded data
First bit stream；Preset logical operation is carried out according to first bit stream, obtains the second bit stream, second bit stream
Digit be more than first bit stream digit；Judge whether last two logical values are identical in second bit stream,
If they are the same, the logical value of at least one of described last two positions is carried out negating processing, obtains third bit stream；It will be described
It is inserted into the third bit stream first place as flag bit after target position negates in third bit stream, obtains purpose coded data.
As shown in Figure 1, for one embodiment flow diagram of coding method in the embodiment of the present invention, this method comprises:
101, the first bit stream of piginal encoded data is obtained.
Specifically, the initial data can be the data that transmitting terminal is transferred to receiving end.The initial data is bit manifold
Formula, such as when the first bit stream is 8 data, such as 10101010.
102, preset logical operation is carried out according to first bit stream, obtains the second bit stream, second bit
The digit of stream is more than the digit of first bit stream.
Wherein, the digit of extra first bit stream of the digit of the second bit stream, such as the second bit stream are 10 data, the
One bit stream is 8 data, and the digit to the first bit stream and the actual number of bits of the second bit stream are not specifically limited here.
103, judge whether last two logical values are identical in second bit stream, if they are the same, execute step 104,
If not identical, 106 are thened follow the steps.
104, the logical value of at least one of described last two positions is carried out negating processing, obtains third bit stream.
Wherein, when last two logical values are identical in the second bit stream, by least one of described last two positions
Logical value carry out negating processing, obtain third bit stream.Such as second bit stream be 10 data 1010101011 when, by it
Negate that obtain third bit stream after processing be 1010101010.Or second bit stream be 10 data 0101010111
When, negate that obtain third bit stream after processing be 0101010101.
105, it is inserted into the third bit stream first place as flag bit after negating target position in the third bit stream,
Obtain purpose coded data.
106, it is inserted into the second bit stream first place using the target position as normal bit, obtains purpose coded data.
By obtaining the first bit stream of piginal encoded data in the embodiment of the present invention, the first bit stream is carried out preset
Logical operation obtains the second bit stream, then by signal judges, negate, be inserted into etc. that processing modes obtain purpose coded data, solves
There is the problem of without code during transmission in information of having determined, to improve signal transmission quality.
In some embodiments of the invention, first bit stream is 8 data, and second bit stream is 10 digits
According to, it is described that preset logical operation is carried out according to first bit stream, obtain the second bit stream, comprising: compare described first
The 4th of spy's stream is assigned a value of first of second bit stream；Described is assigned a value of by first of first bit stream
The second of two bit streams；The second of first bit stream is assigned a value of to the third position of second bit stream；It will be described
The third position of first bit stream is assigned a value of the 4th of second bit stream；The 4th of first bit stream is assigned a value of
The 5th of second bit stream；After negating to the 4th of first bit stream, it is assigned a value of second bit stream
6th；The 7th of second bit stream is assigned a value of by the 5th of first bit stream；By first bit stream
The 6th be assigned a value of the 8th of second bit stream；Second ratio is assigned a value of by the 7th of first bit stream
The 9th of spy's stream；The tenth of second bit stream is assigned a value of by the 8th of first bit stream.
Below can be for 8 data with the first bit stream, the second data of bit stream position 10, in conjunction with a specific embodiment pair
Preset logical operation is carried out according to the first bit stream, the second bit stream is obtained and is described in detail.
First to the first bit stream by following logical operation indirect assignment, by 8bit data encoding at 10bit data, tool
Body encoding mechanism is as follows:
Bn [0]=bm [3]；(being assigned a value of first of the second bit stream for the 4th of the first bit stream)
Bn [1]=bm [0]；(being assigned a value of the second of the second bit stream for first of the first bit stream)
Bn [2]=bm [1]；(second of the first bit stream is assigned a value of to the third position of the second bit stream)
Bn [3]=bm [2]；(the third position of the first bit stream is assigned a value of the 4th of the second bit stream)
Bn [4]=bm [3]；(being assigned a value of the 5th of the second bit stream for the 4th of the first bit stream)
Bn [5]=~bm [3]；(after negating to the 4th of the first bit stream, being assigned a value of the 6th of the second bit stream)
Bn [6]=bm [4]；(being assigned a value of the 7th of the second bit stream for the 5th of the first bit stream)
Bn [7]=bm [5]；(being assigned a value of the 8th of the second bit stream for the 6th of the first bit stream)
Bn [8]=bm [6]；(being assigned a value of the 9th of the second bit stream for the 7th of the first bit stream)
Bn [9]=bm [7]；(being assigned a value of the tenth of the second bit stream for the 8th of the first bit stream)
Wherein, bm [0~7] is original 8bit coded data, i.e. the first bit stream, bn [0~9] is the 10bit after conversion
Coded data, i.e., the second bit stream being converted to by the first bit stream, a certain position are gone after negating to indicate the negated value of this,
Such as first negate as~bm [0], indicates first negated value.
In the present invention when it is implemented, judging in second bit stream that last two are patrolled described in above-mentioned steps 103
It whether identical collects value, may further include: logic NAND operation being carried out to last two values, obtains the first operation
As a result；Logic or operation are carried out to last two values, obtain the second operation result；To first operation result and
Second operation result carries out logic and operation, obtains third operation result；It is described last when the third operation result is 1
Two logical values are not identical, and when the third operation result is 0, the logical value of continuous two default positions is identical.
Specifically, being below that 10 data instances are described in detail with the second bit stream.Assuming that the second bit stream is bn
[0~9], the 9th in last two logical values the second bit stream of whether identical specific judgement in the second bit stream described above
Whether position and the tenth logical value are identical, can use following logical expression:
AND (NAND (bn [8~9]), OR (bn [8~9])) (1)；
When the 9th and the tenth logical value in the second bit stream described above is 1 or 0, then logical expression
The result of formula (1) is 0, then means that the 9th of the second bit stream is identical with the tenth logical value, then negate to the tenth, then
It is inserted into flag bit；When the 9th and the tenth logical value in the second bit stream described above is respectively 1 and 0, then logic
The result of expression formula (1) is 1, meets encoding quality level, is inserted directly into flag bit.
It is corresponding on coding method basis in order to more preferably implement coding method in the embodiment of the present invention, such as Fig. 2 institute
Show, a kind of coding/decoding method is also provided in the embodiment of the present invention, which includes:
201, corresponding first bit stream of original data to be decoded is obtained；
Specifically, the initial data can be the data that transmitting terminal is transferred to receiving end.The original data to be decoded be than
Special manifold formula, such as when the first bit stream is 8 data, such as 10101010.
202, the zone bit information in first bit stream is obtained；
Wherein, zone bit information can be as described in coding method " 0 " or " 1 " value.
203, when the value of flag bit value negated for target position in first bit stream, described in acquisition
The default position information of processing is negated when encoding in the first bit stream；
Specifically, last two bn [8~9] of such as coding method kind are respectively 11, the first ratio of corresponding decoding data
Spy's stream is 10 (last position negates processing), and in the first bit stream, then the default position is last 0.
204, position default in first bit stream is carried out negating processing, obtains the second bit stream；
It carries out negating processing specifically, presetting position in the first bit stream in coding/decoding method, the second bit stream can be obtained,
It then in the first bit stream of corresponding decoding data is that 10 (last position takes in coding method in step 203
Inverse processing), in the first bit stream, then the default position is last 0, which is negated processing, and reverting to " 1 " can be obtained the
Two bit streams.
205, preset logical operation is carried out according to second bit stream and removes the flag bit, obtain solution yardage
According to the digit of the decoding data is less than the digit of second bit stream.
In the embodiment of the present invention, above-mentioned coding staff can be used by carrying out preset logical operation according to second bit stream
The logical operation side that " to carry out preset logical operation according to the first bit stream, obtain the second bit stream " in method embodiment opposite
Formula is specifically not described in detail herein.
In addition, can be and removing according to the preset logical operation of second bit stream progress in the embodiment of the present invention
It is carried out before the flag bit, is also possible to first remove the flag bit, carry out preset patrol further according to second bit stream
Operation is collected, is not construed as limiting herein, however, how to carry out logical operation, flag bit is not involved in logical operation.
By the way that the first bit stream of raw decoded data is converted into decoding data in the embodiment of the present invention, the is obtained first
Zone bit information in one bit stream；Judged again by flag bit, when the value of flag bit is that target position takes in the first bit stream
When value after anti-, the default position information that processing is negated when encoding in the first bit stream is obtained；To position default in the first bit stream
It carries out negating processing, obtains the second bit stream；Preset logical operation is carried out according to the second bit stream and removes the flag bit,
Obtain decoding data.It is corresponding with coding method, it solves the problems, such as that signal is easy to happen error code in transmission process, improves solution
The reliability of data after code, is transmitted convenient for signal.
Further, the coding/decoding method can also include:
When the value of the flag bit is the value of target position in first bit stream, according to first bit stream
It carries out preset logical operation and removes the flag bit, obtain decoding data.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the detailed description above with respect to other embodiments, such as the part for not having to be described in detail in coding/decoding method, may refer to
Text is directed to the detailed description of coding method embodiment, and details are not described herein again.
It is corresponding on coding method basis in order to more preferably implement coding method in the embodiment of the present invention, such as Fig. 3 institute
Show, a kind of code device is also provided in the embodiment of the present invention, which includes:
Acquiring unit 301, for obtaining the first bit stream of piginal encoded data；
Logical unit 302 obtains the second bit for carrying out preset logical operation according to first bit stream
Stream, the digit of second bit stream are more than the digit of first bit stream；
Coding unit 303, for judging whether last two logical values are identical in second bit stream, if they are the same,
The logical value of at least one of described last two positions is carried out to negate processing, obtains third bit stream；By the third ratio
It is inserted into the third bit stream first place as flag bit after target position negates in spy's stream, obtains purpose coded data.
Further, the coding unit 303 is also used to: when two logical values last in second bit stream are different
When, it is inserted into the second bit stream first place using the target position as flag bit, obtains coded data.
Further, first bit stream is 8 data, and second bit stream is 10 data, the logic fortune
Unit 302 is calculated to be specifically used for:
First of second bit stream is assigned a value of by the 4th of first bit stream；
First of first bit stream is assigned a value of the second of second bit stream；
The second of first bit stream is assigned a value of to the third position of second bit stream；
The third position of first bit stream is assigned a value of the 4th of second bit stream；
The 5th of second bit stream is assigned a value of by the 4th of first bit stream；
After negating to the 4th of first bit stream, it is assigned a value of the 6th of second bit stream；
The 7th of second bit stream is assigned a value of by the 5th of first bit stream；
The 8th of second bit stream is assigned a value of by the 6th of first bit stream；
The 9th of second bit stream is assigned a value of by the 7th of first bit stream；
The tenth of second bit stream is assigned a value of by the 8th of first bit stream.
Further, the coding unit 303 is specifically used for:
Logic NAND operation is carried out to the value in continuous multiple default positions, obtains the first operation result；
Logic or operation are carried out to last two logical values, obtain the second operation result；
Logic and operation is carried out to first operation result and the second operation result, obtains third operation result；
When the third operation result is 1, the logical value of continuous two default positions is not identical, when the third
When operation result is 0, the logical value of continuous two default positions is identical.
What code device provided in the embodiment of the present invention solves the problems, such as that signal is easy to happen error code in transmission process, mentions
The reliability of high coded data is transmitted convenient for signal.
It is corresponding on coding/decoding method basis in order to more preferably implement coding/decoding method in the embodiment of the present invention, such as Fig. 4 institute
Show, a kind of decoding apparatus is also provided in the embodiment of the present invention, which includes:
First acquisition unit 401, for obtaining corresponding first bit stream of original data to be decoded；
Second acquisition unit 402, for obtaining the zone bit information in first bit stream；
Third acquiring unit 403, after being negated for the value when the flag bit for target position in first bit stream
Value when, obtain the default position information that processing is negated when encoding in first bit stream；
Decoding unit 404 obtains the second bit stream for carrying out negating processing to position default in first bit stream；
Preset logical operation is carried out according to second bit stream and removes the flag bit, obtains decoding data, the solution yardage
According to digit be more than second bit stream digit.
Further, the decoding unit 404 is also used to: when the value of the flag bit is mesh in first bit stream
When the value of mark, preset logical operation is carried out according to first bit stream and removes the flag bit, obtains solution yardage
According to.
What decoding apparatus provided in the embodiment of the present invention solves the problems, such as that signal is easy to happen error code in transmission process,
The reliability of decoded data is improved, is transmitted convenient for signal.
The application also provides a kind of storage medium, and the storage medium is stored with a plurality of instruction, and described instruction is suitable for processing
Device is loaded, to execute the step in any of the above-described coding method embodiment, or to execute any coding/decoding method embodiment
In step.
When it is implemented, above each unit or structure can be used as independent entity to realize, can also carry out any
Combination, is realized as same or several entities, the method that the specific implementation of above each unit or structure can be found in front
Embodiment, details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the detailed description above with respect to other embodiments, details are not described herein again.
The specific implementation of above each operation can be found in the embodiment of front, and details are not described herein.
Be provided for the embodiments of the invention above a kind of coding method, coding/decoding method, relevant apparatus and storage medium into
It has gone and has been discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, the above implementation
The explanation of example is merely used to help understand method and its core concept of the invention；Meanwhile for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
1. a kind of coding method, which is characterized in that the coding method includes:
Obtain the first bit stream of piginal encoded data；
Preset logical operation is carried out according to first bit stream, obtains the second bit stream, the digit of second bit stream
More than the digit of first bit stream；
Judge whether last two logical values identical in second bit stream, if they are the same, by described last two extremely
The logical value of a few position carries out negating processing, obtains third bit stream；
It is inserted into the third bit stream first place as flag bit after target position in the third bit stream is negated, obtains purpose
Coded data.
2. coding method according to claim 1, which is characterized in that the coding method further include:
When two logical values last in second bit stream are not identical, institute is inserted into using the target position as normal bit
The second bit stream first place is stated, purpose coded data is obtained.
3. coding method according to claim 1, which is characterized in that first bit stream be 8 data, described second
Bit stream is 10 data, described to carry out preset logical operation according to first bit stream, obtains the second bit stream, is wrapped
It includes:
First of second bit stream is assigned a value of by the 4th of first bit stream；
First of first bit stream is assigned a value of the second of second bit stream；
The second of first bit stream is assigned a value of to the third position of second bit stream；
The third position of first bit stream is assigned a value of the 4th of second bit stream；
The 5th of second bit stream is assigned a value of by the 4th of first bit stream；
After negating to the 4th of first bit stream, it is assigned a value of the 6th of second bit stream；
The 7th of second bit stream is assigned a value of by the 5th of first bit stream；
The 8th of second bit stream is assigned a value of by the 6th of first bit stream；
The 9th of second bit stream is assigned a value of by the 7th of first bit stream；
The tenth of second bit stream is assigned a value of by the 8th of first bit stream.
4. coding method according to claim 1, which is characterized in that last two in judgement second bit stream
Logical value it is whether identical, comprising:
Logic NAND operation is carried out to last two logical values, obtains the first operation result；
Logic or operation are carried out to last two logical values, obtain the second operation result；
Logic and operation is carried out to first operation result and the second operation result, obtains third operation result；
When the third operation result is 1, the logical value of continuous two default positions is not identical, when the third operation
When being as a result 0, the logical value of continuous two default positions is identical.
5. a kind of coding/decoding method, which is characterized in that the coding/decoding method includes:
Obtain corresponding first bit stream of original data to be decoded；
Obtain the zone bit information in first bit stream；
When the value of flag bit value negated for target position in first bit stream, first bit is obtained
The default position information of processing is negated when encoding in stream；
It carries out negating processing to position is preset in first bit stream, obtains the second bit stream.
6. coding/decoding method according to claim 5, which is characterized in that the coding/decoding method further include:
Preset logical operation is carried out according to second bit stream and removes the flag bit, obtains decoding data, the solution
The digit of code data is less than the digit of second bit stream.
7. coding/decoding method according to claim 6, which is characterized in that the coding/decoding method further include:
When the value of the flag bit is the value of target position in first bit stream, carried out according to first bit stream
Preset logical operation simultaneously removes the flag bit, obtains decoding data.
8. a kind of code device, which is characterized in that the code device includes:
Acquiring unit, for obtaining the first bit stream of piginal encoded data；
Logical unit, it is described for obtaining the second bit stream according to the preset logical operation of first bit stream progress
The digit of second bit stream is more than the digit of first bit stream；
Coding unit, for judging whether last two logical values are identical in second bit stream, if they are the same, by described in most
The logical value of at least one of two positions carries out negating processing afterwards, obtains third bit stream；By mesh in the third bit stream
Mark is used as flag bit to be inserted into the third bit stream first place after negating, obtain purpose coded data.
9. a kind of decoding apparatus, which is characterized in that the decoding apparatus includes:
First acquisition unit, for obtaining corresponding first bit stream of original data to be decoded；
Second acquisition unit, for obtaining the zone bit information in first bit stream；
Third acquiring unit, for being the negated value in target position in first bit stream when the value of the flag bit
When, obtain the default position information that processing is negated when encoding in first bit stream；
Decoding unit obtains the second bit stream for carrying out negating processing to position default in first bit stream；According to described
Second bit stream carries out preset logical operation and removes the flag bit, obtains decoding data, the digit of the decoding data
More than the digit of second bit stream.
10. a kind of storage medium, which is characterized in that the storage medium is stored with a plurality of instruction, and described instruction is suitable for processor
It is loaded, with the step in coding method described in any one of perform claim requirement 1 to 4, or with perform claim requirement 5
Step into coding/decoding method described in any one of 7.
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