CN104091313B - Method and device for processing automatic equalization compensation value and automatic equalization method and device - Google Patents
Method and device for processing automatic equalization compensation value and automatic equalization method and device Download PDFInfo
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- CN104091313B CN104091313B CN201410338919.1A CN201410338919A CN104091313B CN 104091313 B CN104091313 B CN 104091313B CN 201410338919 A CN201410338919 A CN 201410338919A CN 104091313 B CN104091313 B CN 104091313B
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Abstract
The invention provides a method and device for processing an automatic equalization compensation value and an automatic equalization method and device. The method for processing the automatic equalization compensation value includes the steps that after signal stabilization is detected, an automatic equalization module is controlled to adjust signals in all signal paths of a signal to be adjusted; each signal path of the signal to be adjusted is adjusted by the automatic equalization module n times, the signal to be adjusted is provided with m signal paths altogether, and accordingly n*m original compensation values are acquired; whether the n*m original compensation values are all placed within a preset compensation value section or not is judged, if not, the original compensation values which are not placed within the preset compensation value section are eliminated, and hence reasonable compensation values are acquired; the occurrence frequency of each compensation value in the reasonable compensation values is counted, so that the compensation value with the maximal occurrence frequency is acquired; the compensation value with the maximal occurrence frequency is determined as the automatic equalization compensation value of the signal. By the adoption of the method, the determined compensation value is most reasonable and reliable.
Description
Technical field
The present invention relates to signal equalization field, more particularly to automatic equalization offset treating method and apparatus, it is automatic
Weighing apparatus method and apparatus.
Background technology
With the continuous lifting of data rate, especially when data rate is more than 1Gbps, signal attenuation is more serious, leads
The transmission range of high-frequency signal is caused to be very limited.This signal attenuation is caused due to loss, in order to compensate biography
A kind of defeated loss, very cost-effective solution is using different balancing techniques.
At present, a kind of balancing technique is to extend the integrated automatic equalization module of chip internal, the automatic equalization module in signal
It is made up of circuit.During automatic equalization, automatic equalization module determines signal compensation value, eye pattern according to the eye size of signal
Large compensation value is small, and the small offset of eye pattern is big.
When automatic equalization module determines signal compensation value according to the eye size of signal, it is necessary to be sampled to signal,
In sampling process, clock jitter (CLK Jitter), loss and impedance discontinuity etc. many factors may shadows
The eye size of sampled signal is rung, thus, affected by these factors, the eye pattern of some signals that automatic equalization module is obtained is big
Small possible inaccurate, thus resulting in automatic equalization module may be inaccurate according to the signal compensation value that eye size determines, and then
Causing automatic equalization module can not accurately compensate for these signals, ultimately result in the signal quality for receiving poor.When
When length of transmission line is more long or second-rate, this phenomenon can be more serious.
The content of the invention
In view of this, the first aspect of the present invention provides a kind for the treatment of method and apparatus of automatic equalization offset, with
Solve the problems, such as that automatic equalization module can not accurately determine offset.
Based on the first aspect of the present invention, the second aspect of the present invention provides a kind of automatic balancing method and device.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of processing method of automatic equalization offset, including：
After signal stabilization is detected, control automatic equalization module is to the signal in each signalling channel of signal to be adjusted
It is adjusted；Wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, the letter to be adjusted
Number total m signalling channel, obtains n*m raw compensation value, wherein, n, m are positive integer；
Whether the n*m raw compensation value is judged in predesigned compensation value is interval, if not, removal is not described pre-
If the raw compensation value in offset interval, to obtain reasonable compensation value；
Count the number of times that each offset in the reasonable compensation value occurs, the compensation most to obtain occurrence number
Value；
The most offset of the occurrence number is defined as the automatic equalization offset of signal.
Preferably, it is described by described in when the number of times that there is the appearance of at least two offsets in the reasonable compensation value is most
The most offset of occurrence number is defined as the automatic equalization offset of signal, specially：By the most benefit of the occurrence number
Any one repaid in value is defined as the automatic equalization offset of signal.
Preferably, the automatic equalization module is arranged in signal extension chip, and control automatic equalization module is to be adjusted
After the completion of signal adjustment once in each signalling channel of signal, the flag bit that the signal extension chip sends is detected.
Preferably, n >=2, after the flag bit is detected, control automatic equalization module is to the every of signal to be adjusted
Signal in individual signalling channel is adjusted next time.
Preferably, the control automatic equalization module is adjusted to the signal in each signalling channel of signal to be adjusted
It is whole, specially：Every prescribed time period control automatic equalization module is entered to the signal in each signalling channel of signal to be adjusted
Row adjustment.
Preferably, the offset that the occurrence number is most is defined as after the automatic equalization offset of signal,
Also include：
Store the automatic equalization offset.
Preferably, the processing method is applied to the automatic equalization of HDMI signals.
Preferably, the m=3.
A kind of processing unit of automatic equalization offset, including：
Control unit, for after signal stabilization is detected, control automatic equalization module to be to the letter in each signalling channel
Number it is adjusted, wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, described to be adjusted
Signal has m signalling channel, obtains n*m raw compensation value, wherein, n, m are positive integer；
Judging unit, for judging the n*m raw compensation value whether in predesigned compensation value is interval；
Removal unit, for when the n*m raw compensation value is not in predesigned compensation value is interval, removal not to exist
Raw compensation value in the predesigned compensation value interval, to obtain reasonable compensation value；
Statistic unit, the number of times for counting the appearance of each offset in the reasonable compensation value, to obtain out occurrence
The most offset of number；
Determining unit, the automatic equalization offset for the most offset of the occurrence number to be defined as signal.
Preferably, the automatic equalization module is arranged in signal extension chip, and the processing unit also includes：
Detection unit, for controlling the signal in each signalling channel of automatic equalization module to signal to be adjusted to adjust one
After the completion of secondary, the flag bit that the signal extension chip sends is detected.
Preferably, n >=2, described control unit also includes default subelement, and the default subelement is used for when described
After detection unit detects the flag bit, control automatic equalization module is to the signal in each signalling channel of signal to be adjusted
Adjusted next time.
Preferably, also include：
Memory cell, after determining automatic equalization offset for the determining unit, stores the automatic equalization compensation
Value.
A kind of automatic balancing method, including：
Automatic isostatic compensation value is obtained, the automatic equalization offset is true using the processing method described in any of the above-described
It is fixed；
According to the automatic equalization offset, the signal to each signalling channel is compensated.
A kind of automatic equalization device, including：
Controller, for after signal stabilization is detected, each signal of control automatic equalization module to signal to be adjusted
Signal in passage is adjusted；Wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted,
The signal to be adjusted has m signalling channel, obtains n*m raw compensation value, wherein, n, m are positive integer；Judge described
Whether n*m raw compensation value be interval interior in predesigned compensation value, if not, removal is not in predesigned compensation value interval
Raw compensation value, to obtain reasonable compensation value；The number of times that each offset in the reasonable compensation value occurs is counted, to obtain
The most offset of occurrence number；The most offset of the occurrence number is defined as the automatic equalization offset of signal；
Automatic equalization module, for obtaining automatic isostatic compensation value, according to the automatic equalization offset, to each signal
The signal of passage is compensated, wherein, the automatic equalization offset is determined using the processing method described in any of the above-described.
Compared to prior art, the invention has the advantages that：
The processing method of the automatic equalization offset that the present invention is provided, the multiple compensation obtained to the adjustment of automatic equalization module
Value is screened, and the offset not in predesigned compensation value interval is got rid of.Because predesigned compensation value interval is by a large amount of
The offset interval for drawing is summarized in test, and signal adjustment is carried out using the offset in the interval, and it is preferable to obtain quality
Signal.Because the number of times for occurring is more, the offset is more reliable, reasonable, the treatment of the automatic equalization offset that the present invention is provided
Method, from the interval interior most offset of occurrence number of choosing of predesigned compensation value as automatic equalization offset so that it is determined that
Automatic equalization offset is the most reasonable, reliable.
And, the automatic equalization offset obtained using the processing method carries out signal adjustment, can obtain quality preferable
Signal.And further, because the signal in unlike signal passage is adjusted using unified automatic equalization offset
It is whole, thus enhance the stability of signal.
Brief description of the drawings
In order to be expressly understood technical scheme, used when specific embodiment of the invention is described below
Accompanying drawing is briefly described.It should be evident that these accompanying drawings are only the part accompanying drawings in the embodiment of the present invention, the common skill in this area
Art personnel on the premise of not paying creative work, other accompanying drawings can also be obtained according to the accompanying drawing.
Fig. 1 is the process flow schematic diagram of the automatic equalization offset that the embodiment of the present invention one is provided；
Fig. 2 is the process flow schematic diagram of the automatic equalization offset that the embodiment of the present invention two is provided；
Fig. 3 is the structural representation of the processing unit of the automatic equalization offset that the embodiment of the present invention three is provided；
Fig. 4 is the automatic balancing method schematic flow sheet that the embodiment of the present invention four is provided；
Fig. 5 is the structural representation of the automatic equalization device that the embodiment of the present invention five is provided.
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with the accompanying drawings.
In the prior art, automatic equalization module determines signal compensation value according to the size of eye pattern, although due to clock jitter
(CLK Jitter), loss and impedance discontinuity etc. many factors cause the eye pattern of the part signal for obtaining to be forbidden
Really, so cause based on eye pattern determine some offsets may it is inaccurate, but automatic equalization module is true according to eye size
It is inaccurate sub-fraction in fixed signal compensation value, and most of offsets are accurate.Obtained according to practical work experience
Go out, about 70% or so offset is accurate.
In order to ensure each signal after isostatic compensation reaches stable performance, quality is good, and the present inventor provides
A kind of processing method of automatic equalization offset, the processing method is based on these accurate offsets, from these accurate benefits
Repay and choose in value automatic equalization offset of the offset as signal.Referring specifically to embodiment one.
Embodiment one
It should be noted that the automatic equalization module described in the embodiment of the present invention is arranged in signal extension chip.Should be certainly
Dynamic balance module is by the integrated hardware configuration of circuit.
In the automatic equalization module, multiple offsets are previously provided with.Signal is adjusted in automatic equalization module
When, automatic equalization module selects suitable offset to be adjusted signal to be adjusted according to signal eye diagram, with obtain quality compared with
Good signal.That is, automatic equalization module is adjusted signal the offset for obtaining to belong to be set in advance in automatically
Offset in balance module.
Specifically, the specific mistake that automatic equalization module is adjusted to the signal in each signalling channel of signal to be adjusted
Journey is as follows：
A1, signal extension chip are sampled to the signal for transmitting：
It should be noted that, it is necessary to use clock signal when to signal sampling.Clock signal has in sampling process
Clock jitter may be produced.
A2, automatic equalization module obtain the eye pattern of sampled signal：
Automatic equalization module obtains the eye pattern of sampled signal according to sampled signal.And in sampling process, clock signal has
May shake, and clock jitter can be impacted to the eye pattern of sampled signal so that the eye pattern of acquisition is inaccurate.In addition,
During sampling, the eye pattern of the sampled signal that many factors such as loss and impedance discontinuity also result in acquisition is inaccurate.
A3, automatic equalization module determine offset according to eye pattern, and signal is compensated using the offset then：
Due to the influence of clock jitter, loss and impedance discontinuity etc. many factors, obtained in above-mentioned steps
Eye pattern in some may it is inaccurate, and then according to eye pattern determine offset be likely to it is inaccurate.So, using offset pair
When signal is compensated, it is possible to signal can not be adjusted optimally.It should be noted that being entered by automatic equalization module
About 70% signal can be adjusted to optimum state in the signal of row adjustment.
It is pointed out that the processing method of the automatic equalization offset of the offer of the embodiment of the present invention one is above-mentioned automatic
It is improved what is obtained on the basis of balance module adjustment signal.
Referring to Fig. 1, Fig. 1 is that the flow of the processing method of the automatic equalization offset that the embodiment of the present invention one is provided is illustrated
Figure.As shown in figure 1, the processing method of the automatic equalization offset is comprised the following steps：
S11, after signal stabilization is detected, control automatic equalization module in each signalling channel of signal to be adjusted
Signal is adjusted, wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, letter to be adjusted
Number total m signalling channel, so as to obtain n*m raw compensation value, wherein, n, m are positive integer：
It should be noted that automatic equalization module is arranged on signal extension chip internal.
After the signal stabilization of transmission, signal extension chip can send interruption, when the processing unit of automatic equalization offset
After detecting the interrupting information that signal extension chip sends, it is believed that signal stabilization.
After the processing unit of automatic equalization offset detects signal stabilization, the processing unit of the automatic equalization offset
Control automatic equalization module is adjusted to the signal in each signalling channel of signal to be adjusted.It should be noted that automatic
After balance module is to the signal adjustment in the different signalling channel of signal to be adjusted, a corresponding offset can be obtained,
And often adjust once, can just obtain an offset.
It should be noted that automatic equalization module after the signal adjustment in the different signalling channel of signal to be adjusted to obtaining
To offset belong to the offset being preset in automatic equalization module.
It should be noted that signal is influenceed in transmitting procedure by extraneous factor, may not transmit in the same time
Signal quality is different, so, in order to ensure the signal quality after adjustment, preferably every prescribed time period just controls automatic equalization mould
Block is adjusted once to the signal in each signalling channel of signal to be adjusted.But every prescribed time period control is automatic
Weighing apparatus module is adjusted once to the signal in each signalling channel of signal to be adjusted, when adjusting multiple, it is determined that automatic equal
Weighing apparatus offset needs longer time, less efficient.
In fact, after the completion of automatic equalization module is once adjusted, signal extension chip is sent out flag bit.The present invention
Embodiment can also will detect flag bit as the trigger condition for being adjusted signal next time.Specifically, automatic equalization is worked as
After the processing unit of offset detects the flag bit that signal extension chip sends, just to each signalling channel of signal to be adjusted
Interior signal is adjusted next time.This control method can improve regulated efficiency.
In step S11, automatic equalization module can be adjusted once to the signal in each signalling channel, it is also possible to be adjusted
It is whole repeatedly, in order that the automatic equalization offset that must be determined is more accurate, the signal adjustment in preferred pair each signalling channel is more
It is secondary.Describe for convenience, setting automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, signal to be adjusted
M signalling channel is had, after being adjusted once due to one signalling channel of each pair, an offset is just obtained, after so adjusting
To n*m raw compensation value, wherein, n, m are positive integer.
It should be noted that the signal to be adjusted described in the embodiment of the present invention is preferably high-frequency signal.
S12, judge the n*m raw compensation value whether in predesigned compensation value is interval：
It should be noted that the offset in predesigned compensation value interval be by a large amount of measuring and calculations out.Profit
The signal quality adjusted out with the offset in predesigned compensation value interval is preferable.When using positioned at the predesigned compensation value area
When interior offset carries out balanced adjustment to HDMI signals, the image that the HDMI signals after adjustment show over the display is clear
Clear, good stability.When offset is not in predesigned compensation value interval, the signal matter adjusted out using the offset is illustrated
Amount is bad, so, in order to ensure the signal quality of balanced adjustment, it is necessary to judge raw compensation value whether in predesigned compensation value area
It is interior, if not, performing step S13, if it is, illustrating that the n*m raw compensation value is reasonable compensation value, directly perform
Step S14.
In addition, when offset of the offset in above-mentioned predesigned compensation value interval for HDMI signals, the predesigned compensation
Offset in value interval is carried out largely by the wire rod to different players, different displays and different transmission lines
What test drew.Because the signal reception of different, the different displays of the signal quality of different players is different, no
Signal transmission capabilities with wire rod transmission line are also different.
S13, removal raw compensation value not in predesigned compensation value interval, to obtain reasonable compensation value.
In order to ensure the automatic equalization offset determined is more accurate, reasonable, when automatic equalization module is to letter to be adjusted
When there is the raw compensation value not in predesigned compensation value interval in the raw compensation value that obtains after number adjustment, by these not pre-
If the offset removal in offset interval, to obtain reasonable compensation value.
S14, the number of times for counting each offset appearance in the reasonable compensation value, the compensation most to obtain occurrence number
Value：
Under normal circumstances, there are multiple offsets in reasonable compensation value, these offsets are possible to identical, it is also possible to no
Together.If each offset in reasonable compensation value is differed, illustrate that each offset is only occurred in that once.If rationally mended
Repaying in value has multiple offsets identical, then illustrate that the offset is occurred in that repeatedly.
It should be noted that the possible only one of which value of the most offset of the occurrence number for obtaining, it is also possible to there is multiple
Value.
S15, the automatic equalization offset that the most offset of the occurrence number is defined as signal：
Think under normal circumstances, after repeatedly being adjusted to unlike signal passage, the number of times that the offset for obtaining occurs is more,
Illustrate that the offset is more reliable, reasonable, signal quality is better in a balanced way using offset adjustment.So, the embodiment of the present invention
In, will appear from the automatic equalization offset that the most offset of number of times is defined as signal.
It is unquestionable when the most offset of the occurrence number in reasonable compensation value is only one, by the occurrence number
Most offsets is defined as the automatic equalization offset of signal.When in reasonable compensation value in the presence of at least two offsets occur
Number of times it is identical, and occur number of times at most, illustrate the signal matter that the offset using the occurrence number as many is adjusted out
Amount difference less, so, any one that can now choose in the most offset of occurrence number is defined as the automatic of signal
Isostatic compensation value.
The size of automatic equalization offset is determined to step S15 by step S11.In the automatic equalization that the present invention is provided
In the processing method of offset, the raw compensation value not in predesigned compensation value interval is eliminated, remaining reasonable compensation value is equal
It is interval interior positioned at predesigned compensation value.Due to being adjusted to signal using the offset in predesigned compensation value interval, equal energy
Obtain the preferable signal of quality.Also, in the embodiment of the present invention, further choose occurrence number from these reasonable compensation values
Most offsets is used as automatic equalization offset, thus the processing method provided compared to prior art, the present invention, improves
The reasonability and accuracy of automatic equalization offset.
In order to make automatic equalization module get the above-mentioned automatic equalization offset determined, as of the invention excellent
Select embodiment, after the step s 15, also include：
S16, the storage automatic equalization offset：
In order to make automatic equalization module get the above-mentioned automatic equalization offset determined, by the automatic equalization
Offset storage is in the register in signal extension chip.When needing to carry out equilibrium to signal, automatic equalization module is from posting
The automatic equalization offset is read in storage.
For the processing method of automatic equalization offset being expressly understood described in above-described embodiment one, below with to be adjusted
Signal be HDMI signals as a example by illustrate.Referring to embodiment two.
Embodiment two
Referring to Fig. 2, the processing method of the automatic equalization offset of HDMI signals is comprised the following steps：
S21, after HDMI signal stabilizations are detected, control automatic equalization module is led to 3 TMDS signals of HDMI signals
Road is adjusted, and adjusts altogether 4 times, and 12 offsets are obtained after so adjusting：
It is well known that color space includes RGB (red, green, blue) space, HDMI 3 signalling channels of signal demand are transmitted, this
Three signalling channels are TMDS signalling channels, respectively channel 0, channel 1, channel 2；Channel 0 transmits B
Signal and control signal, channel 1 transmission G-signal and part audio signal, the transmission of channel 2 R signal and portion
Multi-voice frequency signal.
It should be noted that described above 4 times is only exemplary description, in fact, each TMDS signalling channel
Adjustment number of times can be 1 time, 2 times, 10 times etc..
S22, whether this 12 offsets are judged in predesigned compensation value is interval, if not, step S23 is performed, if
It is to perform step S24.
S23, removal raw compensation value not in predesigned compensation value interval, to obtain reasonable compensation value.
The number of times that S24, each offset counted in the reasonable compensation value occur, the benefit most to obtain occurrence number
Repay value.
S25, the automatic equalization offset that the most offset of the occurrence number is defined as signal.
In order to make automatic equalization module get the automatic equalization offset of the determination, processing method described above
Can also include：
S26, by automatic equalization offset storage signal extension chip register on.
The offset determined using the processing method of the automatic equalization offset described in embodiment two is entered to HDMI signals
During row equilibrium adjustment, image clearly and image stabilization that the HDMI signals after adjustment show over the display, when being not in
Sometimes without phenomenon.
The processing method of the automatic equalization offset provided based on above-described embodiment one and embodiment two, the embodiment of the present invention
Additionally provide a kind of processing unit of automatic equalization offset.Referring to embodiment three.
Embodiment three
As shown in figure 3, the processing unit of the automatic equalization offset is included with lower unit：
Control unit 31, for after signal stabilization is detected, control automatic equalization module to be in each signalling channel
Signal is adjusted, wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, described to wait to adjust
Entire signal has m signalling channel, obtains n*m raw compensation value, wherein, n, m are positive integer；
Judging unit 32, for judging the n*m raw compensation value whether in predesigned compensation value is interval；
Removal unit 33, for when the n*m raw compensation value is not in predesigned compensation value is interval, removal to be not
Raw compensation value in predesigned compensation value interval, to obtain reasonable compensation value；
Statistic unit 34, the number of times for counting the appearance of each offset in the reasonable compensation value, to be occurred
The most offset of number of times；
Determining unit 35, the automatic equalization offset for the most offset of the occurrence number to be defined as signal.
The processing unit of the automatic equalization offset provided by embodiment three avoid clock jitter, loss and
Influence of impedance discontinuity etc. many factors to automatic equalization offset, improves the accuracy of automatic equalization offset.
In order to trigger the processing unit of automatic equalization offset after once adjustment has been carried out to signal to be adjusted, then
Trigger signal to be adjusted to be adjusted next time, the processing unit also includes：
Detection unit 36, for controlling the signal in each signalling channel of automatic equalization module to signal to be adjusted to adjust
After the completion of once, the flag bit that the signal extension chip sends is detected.
Now, described control unit 31 also includes default subelement, and the default subelement is used to work as the detection unit
After 36 detect the flag bit, control automatic equalization module is carried out down to the signal in each signalling channel of signal to be adjusted
Once adjust.
In order to make automatic equalization module get the above-mentioned automatic equalization offset determined, as of the invention excellent
Selecting embodiment, processing unit described above can also include：
Memory cell 37, after determining automatic equalization offset for the determining unit, stores automatic equalization offset.
It should be noted that the processing unit of the automatic equalization offset described in the embodiment of the present invention can apply to HDMI
The automatic equalization of signal, now, the number m=3 of signalling channel.
The processing method of the automatic equalization offset provided based on embodiment one and embodiment two, present invention also offers one
Plant automatic balancing method.Referring specifically to example IV.
Example IV
Referring to Fig. 4, automatic balancing method provided in an embodiment of the present invention is comprised the following steps：
S41, the automatic isostatic compensation value of acquisition：
Specifically, automatic equalization module obtains automatic isostatic compensation value from the register of signal extension chip.
It should be noted that the automatic equalization offset is using the processing method described in embodiment one or embodiment two
Determine.For the sake of brevity, it is not described in detail herein, specifying information is retouched referring to embodiment one or embodiment two
State.
S42, according to automatic equalization offset, the signal to each signalling channel is compensated：
Automatic equalization module is compensated according to the automatic equalization offset for getting, the signal to each signalling channel.
Wherein, the offset of the signal of each signalling channel is the automatic equalization offset for getting.
In embodiments of the present invention, the automatic equalization offset used when compensating is more accurate, therefore, after compensation
Signal quality is preferable.And different signalling channels uses same automatic equalization offset, so the signal stabilization for drawing
Preferably.When signal to be adjusted is HDMI signals, the signal that display is received is relatively stable, the image for showing over the display
It is picture rich in detail.
In addition, automatic balancing method provided in an embodiment of the present invention goes for different types of signal source equipment sending
The signal for going out, therefore, the compatibility of this automatic balancing method is preferably.
Additionally, be modified without the hardware to equipment using automatic balancing method provided in an embodiment of the present invention, so,
Use cost is low.
It should be noted that when carrying out signal transmission every time, being required to be adjusted signal compensation.And can not utilize upper
Secondary offset is compensated to the signal of signal transmission next time.
Based on the automatic balancing method that above-described embodiment four is provided, the embodiment of the present invention additionally provides automatic equalization device.
Referring specifically to embodiment five.
Embodiment five
As shown in figure 5, the automatic equalization device includes：
Controller 51, for after signal stabilization is detected, each letter of control automatic equalization module to signal to be adjusted
Signal in number passage is adjusted；Wherein, the automatic equalization module adjusts n to each signalling channel of signal to be adjusted
Secondary, the signal to be adjusted has m signalling channel, obtains n*m raw compensation value, wherein, n, m are positive integer；Judge
Whether the n*m raw compensation value is in predesigned compensation value is interval, if not, removal is not or not predesigned compensation value interval
Interior raw compensation value, to obtain reasonable compensation value；The number of times that each offset in the reasonable compensation value occurs is counted, with
Obtain the most offset of occurrence number；The most offset of the occurrence number is defined as the automatic equalization compensation of signal
Value；
Automatic equalization module 52, for obtaining automatic isostatic compensation value, according to the automatic equalization offset, to each letter
The signal of number passage is compensated；The automatic equalization offset is true using the processing method described in embodiment one or embodiment two
It is fixed.
Further, the controller 51 can be also used for each signal of control automatic equalization module to signal to be adjusted
After the completion of signal adjustment once in passage, the flag bit that the signal extension chip sends is detected.
Further, the controller 51 can be also used for after the flag bit is detected, controlling automatic equalization module
Signal in each signalling channel of signal to be adjusted is adjusted next time.
Further, the controller 51 can be also used for storing the automatic equalization offset.
It should be noted that the automatic equalization device described in the embodiment of the present invention five can realize the equilibrium to HDMI signals
Adjustment.
The controller 51 that the automatic equalization device that the present invention is provided includes is capable of determining that accurate automatic equalization
Offset, automatic equalization module 52 can be compensated according to the accurate automatic equalization offset to signal.Therefore, lead to
Crossing the automatic equalization device of present invention offer can improve the portfolio effect of signal, improve the stability and quality of signal.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention.
Although the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability
The technical staff in domain, in the case where technical solution of the present invention ambit is not departed from, all using in the methods and techniques of the disclosure above
Appearance makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations to technical solution of the present invention.Therefore,
Every content without departing from technical solution of the present invention, according to technical spirit of the invention to made for any of the above embodiments any simple
Modification, equivalent variations and modification, still fall within the range of technical solution of the present invention protection.
Claims (14)
1. a kind of processing method of automatic equalization offset, it is characterised in that including：
After signal stabilization is detected, control automatic equalization module is carried out to the signal in each signalling channel of signal to be adjusted
Adjustment；Wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, and the signal to be adjusted is total to
There is m signalling channel, obtain n*m raw compensation value, wherein, n, m are positive integer；
Whether the n*m raw compensation value is judged in predesigned compensation value is interval, if not, removal is not in the default benefit
The raw compensation value in value interval is repaid, to obtain reasonable compensation value；
Count the number of times that each offset in the reasonable compensation value occurs, the offset most to obtain occurrence number；
The most offset of the occurrence number is defined as the automatic equalization offset of signal.
2. processing method according to claim 1, it is characterised in that mended when having at least two in the reasonable compensation value
Repay the number of times of value appearance at most, the offset that the occurrence number is most is defined as the automatic equalization offset of signal,
Specially：Any one in the most offset of the occurrence number is defined as the automatic equalization offset of signal.
3. processing method according to claim 1, it is characterised in that the automatic equalization module is arranged on signal extension core
In piece, after the completion of control automatic equalization module is to the signal adjustment once in each signalling channel of signal to be adjusted, institute is detected
State the flag bit that signal extension chip sends.
4. processing method according to claim 3, it is characterised in that n >=2, after the flag bit is detected, control
Automatic equalization module processed is adjusted next time to the signal in each signalling channel of signal to be adjusted.
5. processing method according to claim 1, it is characterised in that the control automatic equalization module is to signal to be adjusted
Each signalling channel in signal be adjusted, specially：Every prescribed time period controls automatic equalization module to be adjusted
Signal in each signalling channel of signal is adjusted.
6. the processing method according to claim any one of 1-5, it is characterised in that described that the occurrence number is most
Offset is defined as after the automatic equalization offset of signal, also includes：
Store the automatic equalization offset.
7. the processing method according to claim any one of 1-5, it is characterised in that the processing method is applied to HDMI letters
Number automatic equalization.
8. processing method according to claim 7, it is characterised in that the m=3.
9. a kind of processing unit of automatic equalization offset, it is characterised in that including：
Control unit, for after signal stabilization is detected, control automatic equalization module to be entered to the signal in each signalling channel
Row adjustment, wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, the signal to be adjusted
M signalling channel is had, n*m raw compensation value is obtained, wherein, n, m are positive integer；
Judging unit, for judging the n*m raw compensation value whether in predesigned compensation value is interval；
Removal unit, for when the n*m raw compensation value is not in predesigned compensation value is interval, removing not described
Raw compensation value in predesigned compensation value interval, to obtain reasonable compensation value；
Statistic unit, the number of times for counting the appearance of each offset in the reasonable compensation value, to obtain occurrence number most
Many offsets；
Determining unit, the automatic equalization offset for the most offset of the occurrence number to be defined as signal.
10. processing unit according to claim 9, it is characterised in that the automatic equalization module is arranged on signal extension
In chip, the processing unit also includes：
Detection unit, for controlling the signal in each signalling channel of automatic equalization module to signal to be adjusted to adjust once complete
Cheng Hou, detects the flag bit that the signal extension chip sends.
11. processing units according to claim 10, it is characterised in that n >=2, described control unit also includes pre-
If subelement, the default subelement is used to after the detection unit detects the flag bit, control automatic equalization module
Signal in each signalling channel of signal to be adjusted is adjusted next time.
12. processing unit according to claim any one of 9-11, it is characterised in that also include：
Memory cell, after determining automatic equalization offset for the determining unit, stores the automatic equalization offset.
A kind of 13. automatic balancing methods, it is characterised in that including：
Automatic isostatic compensation value is obtained, the automatic equalization offset is using the processing method described in claim any one of 1-8
It is determined that；
According to the automatic equalization offset, the signal to each signalling channel is compensated.
A kind of 14. automatic equalization devices, it is characterised in that including：
Controller, for after signal stabilization is detected, each signalling channel of control automatic equalization module to signal to be adjusted
Interior signal is adjusted；Wherein, the automatic equalization module is adjusted n times to each signalling channel of signal to be adjusted, described
Signal to be adjusted has m signalling channel, obtains n*m raw compensation value, wherein, n, m are positive integer；Judge the n*m
Whether individual raw compensation value is in predesigned compensation value is interval, if not, removal original not in predesigned compensation value interval
Beginning offset, to obtain reasonable compensation value；The number of times that each offset in the reasonable compensation value occurs is counted, to be gone out
The most offset of occurrence number；The most offset of the occurrence number is defined as the automatic equalization offset of signal；
Automatic equalization module, for obtaining automatic isostatic compensation value, according to the automatic equalization offset, to each signalling channel
Signal compensate, wherein, the automatic equalization offset is true using the processing method described in claim any one of 1-8
It is fixed.
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