CN108111788A - TV nonstandard signal processing method, device and computer readable storage medium - Google Patents
TV nonstandard signal processing method, device and computer readable storage medium Download PDFInfo
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- CN108111788A CN108111788A CN201711389124.3A CN201711389124A CN108111788A CN 108111788 A CN108111788 A CN 108111788A CN 201711389124 A CN201711389124 A CN 201711389124A CN 108111788 A CN108111788 A CN 108111788A
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- 238000003672 processing method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
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- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
The invention discloses a kind of TV nonstandard signal processing method, device and computer readable storage medium, the described method includes：Default AFT windows are obtained, and automatic frequency tuning AFT processing is carried out to pending signal；Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；When the frequency deviation is not in the default AFT windows, the target AFT windows more than the default AFT windows are obtained, using the target AFT windows of acquisition as new default AFT windows, and return to described the step of AFT processing is carried out to the pending signal；When the frequency deviation is in the default AFT windows, stop carrying out AFT processing to the pending signal.Since the present invention calls default AFT windows, frequency deviation is returned in default AFT windows, television image can be made to keep steady and audible, improve user experience.
Description
Technical field
The present invention relates to a kind of intelligent television field more particularly to TV nonstandard signal processing method, device and computers
Readable storage medium storing program for executing.
Background technology
Although current smart television, network TV, DTV are increasingly popularized, simulated television is on many countries and ground
Still occupy an leading position in area.Especially in some undeveloped countries and remote districts, TV signal is subject to complexity in transmission process
The factor of the interference or transmitting equipment of environment in itself, causes TV signal that frequency deviation has occurred, TV signal is made to become nonstandard signal,
Nonstandard signal can make viewing picture unstable, the problems such as rolling such as image flicker, twill, band.
At present, the processing for nonstandard signal be fixed automatic frequency tuning (Automatic Fine Tuning,
AFT) under window, the frequency deviation of nonstandard signal is adjusted, due to can not the fixed AFT windows of Tiao Jie Give, although repeatedly adjust
Frequency deviation can not be still adjusted frequency deviation to the fixed AFT windows, and television image flickers always, influences viewing effect.Therefore,
It is necessary to study to provide a kind of method, handled with being directed to a kind of this nonstandard signal, the viewing effect for making image is unaffected.
The content of the invention
It is a primary object of the present invention to provide a kind of TV nonstandard signal processing method, device and computer-readable storage
Medium, it is intended to the technical issues of solution is difficult to preferably handle nonstandard signal, influence viewing effect in the prior art.
To achieve the above object, the present invention provides a kind of TV nonstandard signal processing method, and the described method includes following steps
Suddenly：
Default AFT windows are obtained, and automatic frequency tuning AFT processing is carried out to pending signal；
Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；
When the frequency deviation is not in the default AFT windows, the target AFT more than the default AFT windows is obtained
Window using the target AFT windows of acquisition as new default AFT windows, and returns described to the pending signal progress AFT
The step of processing；
When the frequency deviation is in the default AFT windows, stop carrying out AFT processing to the pending signal.
Preferably, it is described to obtain default AFT windows, and AFT processing is carried out to pending signal, it specifically includes：
Detecting that when carrying out AFT processing to pending signal, acquisition is current to adjust number；
By the current adjusting number compared with default adjusting number, when the current adjusting number is more than described pre-
If adjust number, the default AFT windows are obtained, and AFT processing is carried out to the pending signal.
Preferably, it is described by the current adjusting number compared with default adjusting number after, the TV nonstandard
Signal processing method further includes：
When the current adjusting number is no more than the default adjusting number, stop carrying out the pending signal
AFT processing.
Preferably, it is described to obtain default AFT windows, and AFT processing is carried out to pending signal, it specifically includes：
Default AFT windows are obtained, and obtain the current frequency offset of the pending signal, according to the current frequency offset to described
The frequency of pending signal is tuned.
Preferably, the current frequency offset for obtaining the pending signal, according to the current frequency offset to described pending
The frequency of signal is tuned, and is specifically included：
The current frequency offset of the pending signal is obtained, judges the offset type of the current frequency offset；
The frequency of the pending signal is tuned according to the offset type.
Preferably, it is described that the frequency of the pending signal is tuned according to the offset type, it specifically includes：
When the offset type is on the upper side, the frequency of the pending signal is adjusted into downwards a step-length；
When the offset type is on the lower side, the frequency of the pending signal is adjusted up a step-length.
Preferably, it is described when the frequency deviation is not in the default AFT windows, it obtains and is more than the default AFT windows
The target AFT windows of mouth using the target AFT windows of acquisition as new default AFT windows, and return described to described pending
Signal carries out the step of AFT processing, specifically includes：
When the frequency deviation is not in the default AFT windows, the mesh of preset value bigger than the default AFT windows is obtained
Mark AFT windows, using the target AFT windows of acquisition as newly default AFT windows, and return it is described to the pending signal into
The step of row AFT processing.
Preferably, it is described whether to judge to carry out the frequency deviation of AFT treated pending signals in the default AFT windows
It is interior, it specifically includes：
By the frequency deviation of treated pending signal compared with the default AFT windows, whether the frequency deviation is judged
Less than the default AFT windows.
In addition, to achieve the above object, the present invention also provides a kind of TV nonstandard signal processing unit, described device bags
It includes：The TV nonstandard signal processing that memory, processor and being stored in can be run on the memory and on the processor
Program, the TV nonstandard signal processing routine realize the TV nonstandard signal processing method when being performed by the processor
Step.
In addition, to achieve the above object, it is described computer-readable the present invention also provides a kind of computer readable storage medium
TV nonstandard signal processing routine is stored on storage medium, it is real when the TV nonstandard signal processing routine is executed by processor
The step of existing TV nonstandard signal processing method.
In the present invention, by obtaining default AFT windows, and automatic frequency tuning AFT processing is carried out to pending signal；
Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；When the frequency deviation is not at
When in the default AFT windows, the target AFT windows more than the default AFT windows are obtained, by the target AFT windows of acquisition
As new default AFT windows, and return to described the step of AFT processing is carried out to the pending signal；At the frequency deviation
When in the default AFT windows, stop carrying out AFT processing to the pending signal.Since the present invention calls default AFT windows
Mouthful, frequency deviation is returned in default AFT windows, television image can be made to keep steady and audible, improve user experience.
Description of the drawings
Fig. 1 is the TV nonstandard signal processing unit structural representation for the hardware running environment that the embodiment of the present invention is related to
Figure；
Fig. 2 is the flow diagram of TV nonstandard signal processing method first embodiment of the present invention；
Fig. 3 is the flow diagram of TV nonstandard signal processing method second embodiment of the present invention；
Fig. 4 is the flow diagram of TV nonstandard signal processing method 3rd embodiment of the present invention；
Fig. 5 is the flow diagram of TV nonstandard signal processing method fourth embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The solution of the embodiment of the present invention is mainly：It is carried out certainly by obtaining default AFT windows, and to pending signal
Dynamic frequency tunes AFT processing；Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows
It is interior；When the frequency deviation is not in the default AFT windows, the target AFT windows more than the default AFT windows are obtained,
Using the target AFT windows of acquisition as new default AFT windows, and return described to the pending signal progress AFT processing
The step of；When the frequency deviation is in the default AFT windows, stop carrying out AFT processing to the pending signal.Due to
The present embodiment calls default AFT windows, and frequency deviation is returned in default AFT windows, and television image can be made to keep steady and audible, carried
High user experience.
With reference to Fig. 1, Fig. 1 is the TV nonstandard signal processing unit for the hardware running environment that the embodiment of the present invention is related to
Structure diagram.
As shown in Figure 1, the TV nonstandard signal processing unit can include：Processor 1001, such as CPU, communication are total
Line 1002, user interface 1003, network interface 1004, memory 1005.Wherein, communication bus 1002 is used to implement these components
Between connection communication.User interface 1003 can include display screen (Display), and optional user interface 1003 can also include
Standard wireline interface and wireless interface.Network interface 1004 can optionally include standard wireline interface and wireless interface (such as
WI-FI interfaces).Memory 1005 can be high-speed RAM memory or the memory (non-volatile of stabilization
), such as magnetic disk storage memory.Memory 1005 optionally can also be the storage service independently of aforementioned processor 1001
Device.
The TV nonstandard signal processing unit can be server or other physical equipments with network connection.
It will be understood by those skilled in the art that the structure shown in Fig. 1 is not formed to TV nonstandard signal processing
The restriction of device can include either combining some components or different component cloth than illustrating more or fewer components
It puts.
As shown in Figure 1, as in a kind of memory 1005 of computer readable storage medium can include operating system, net
Network communication module, Subscriber Interface Module SIM and TV nonstandard signal processing routine.
The server calls the TV nonstandard signal processing routine stored in memory 1005 by processor 1001, and
Perform following operation：
Default AFT windows are obtained, and automatic frequency tuning AFT processing is carried out to pending signal；
Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；
When the frequency deviation is not in the default AFT windows, the target AFT more than the default AFT windows is obtained
Window using the target AFT windows of acquisition as new default AFT windows, and returns described to the pending signal progress AFT
The step of processing；
When the frequency deviation is in the default AFT windows, stop carrying out AFT processing to the pending signal.
Further, processor 1001 can call the TV nonstandard signal processing routine stored in memory 1005, also
Perform following operation：
Detecting that when carrying out AFT processing to pending signal, acquisition is current to adjust number；
By the current adjusting number compared with default adjusting number, when the current adjusting number is more than described pre-
If adjust number, the default AFT windows are obtained, and AFT processing is carried out to the pending signal.
Further, processor 1001 can call the TV nonstandard signal processing routine stored in memory 1005, also
Perform following operation：
When the current adjusting number is no more than the default adjusting number, stop carrying out the pending signal
AFT processing.
Further, processor 1001 can call the TV nonstandard signal processing routine stored in memory 1005, also
Perform following operation：
Default AFT windows are obtained, and obtain the current frequency offset of the pending signal, according to the current frequency offset to described
The frequency of pending signal is tuned.
Further, processor 1001 can call the TV nonstandard signal processing routine stored in memory 1005, also
Perform following operation：
The current frequency offset of the pending signal is obtained, judges the offset type of the current frequency offset；
The frequency of the pending signal is tuned according to the offset type.
Further, processor 1001 can call the TV nonstandard signal processing routine stored in memory 1005, also
Perform following operation：
When the offset type is on the upper side, the frequency of the pending signal is adjusted into downwards a step-length；
When the offset type is on the lower side, the frequency of the pending signal is adjusted up a step-length.
Further, processor 1001 can call the TV nonstandard signal processing routine stored in memory 1005, also
Perform following operation：
When the frequency deviation is not in the default AFT windows, the mesh of preset value bigger than the default AFT windows is obtained
Mark AFT windows, using the target AFT windows of acquisition as newly default AFT windows, and return it is described to the pending signal into
The step of row AFT processing.
Further, processor 1001 can call the TV nonstandard signal processing routine stored in memory 1005, also
Perform following operation：
By the frequency deviation of treated pending signal compared with the default AFT windows, whether the frequency deviation is judged
Less than the default AFT windows.
In the present embodiment, by obtaining default AFT windows, and pending signal is carried out at automatic frequency tuning AFT
Reason；Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；When the frequency deviation not
When in the default AFT windows, the target AFT windows more than the default AFT windows are obtained, by the target AFT of acquisition
Window returns to described the step of carrying out AFT processing to the pending signal as new default AFT windows；When the frequency
When partially in the default AFT windows, stop carrying out AFT processing to the pending signal.Since the present embodiment calls in advance
If AFT windows, frequency deviation is returned in default AFT windows, television image can be made to keep steady and audible, improve user experience.
Based on above-mentioned hardware configuration, the embodiment of proposition TV nonstandard signal processing method of the present invention.
With reference to Fig. 2, Fig. 2 is the flow diagram of TV nonstandard signal processing method first embodiment of the present invention.
In the first embodiment, the TV nonstandard signal processing method comprises the following steps：
Step S10：Default AFT windows are obtained, and automatic frequency tuning AFT processing is carried out to pending signal；
It should be noted that frequency deviation occurs in transmission process for TV signal, after becoming nonstandard signal, playing out
When, the problems such as television image flicker, twill will be caused, and AFT windows used by television image adjusting are carried out in the prior art
For the fixed AFT windows that can not be adjusted, since the fixed AFT windows are smaller, TV nonstandard signal is repeated adjusting,
Also the frequency deviation of TV nonstandard signal can not be adjusted to the fixed AFT windows, so that television image can not be adjusted clearly,
In order to solve this problem, the present embodiment will be handled by default AFT windows.
It is understood that the default AFT windows are under fixed AFT windows, it is clear to adjust television image
When, for replacing the new AFT windows of fixation AFT windows, the default AFT windows are bigger than fixation AFT windows, therefore,
Easily the frequency deviation of TV nonstandard signal is adjusted in the default AFT windows.The pending signal refers to being transmitted across
The TV nonstandard signal of frequency deviation occurs in journey；Automatic frequency tune is carried out to the pending signal under the default AFT windows
Humorous AFT processing, the AFT processing, specifically includes：TV receives high-frequency TV signal from antenna, and high-frequency TV signal is accessed
In frequency mixer, it is mixed with the oscillator signal that tuner local oscillation circuit is sent out in frequency mixer, obtains the image intermediate frequency signal of 38MHz,
Image intermediate frequency signal is sent into intermediate level circuit again.If the image intermediate frequency signal frequency departure 38MHz of frequency mixer output, frequency discriminator will
Its variation can be detected, and is converted into corresponding DC voltage and goes fine tuning local frequency.This DC voltage is exactly AFT voltages, is used
It is always 38MHz with the image intermediate frequency signal frequency for ensureing frequency mixer output.
Step S20：Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；
It is understood that the mark that pending signal processing is completed is in described pre- for the frequency deviation of the pending signal
If in AFT windows, when the frequency deviation is in the default AFT windows, the default AFT windows contain frequency deviation, the frequency deviation
The problems such as influence to picture will disappear, the flicker of television image, twill will disappear, and television image is apparent from stablizing, therefore,
After AFT processing is carried out to the pending signal by the default AFT windows, the frequency deviation of the pending signal will determine that
Whether in the default AFT windows.
Further, the step S20, specifically includes：
By the frequency deviation of treated pending signal compared with the default AFT windows, whether the frequency deviation is judged
Less than the default AFT windows.
It should be noted that when judging that the frequency deviation is whether in the default AFT windows, by the frequency deviation and institute
It states default AFT windows to be compared, and whether judges the frequency deviation no more than the default AFT windows, when the frequency deviation is little
When the default AFT windows, assert that the frequency deviation is in the default AFT windows；When the frequency deviation is more than described preset
During AFT windows, assert that the frequency deviation is not in the default AFT windows.
Step S30：When the frequency deviation is not in the default AFT windows, obtain more than the default AFT windows
Target AFT windows using the target AFT windows of acquisition as new default AFT windows, and return described to the pending signal
The step of carrying out AFT processing；
It should be noted that it is not in the frequency deviation for carrying out AFT treated pending signals in the default AFT windows
When, the frequency deviation still can influence the viewing effect of television image, illustrate that default AFT windows at this time are still smaller, also need to adjust
Default AFT windows are replaced with the AFT windows of bigger.
In the concrete realization, when determining the frequency deviation and being not in the default AFT windows, obtain be more than it is described pre-
If target AFT windows of AFT windows, and using the target AFT windows as new default AFT windows, to carry out new pre-
If under AFT windows, AFT processing is carried out to the pending signal, frequency deviation is adjusted to new AFT windows, realization is treated
The processing of signal is handled, ensures the stability and clarity of television image.
Step S40：When the frequency deviation is in the default AFT windows, stop carrying out AFT to the pending signal
Processing.
It is understood that when the frequency deviation of the pending signal is in the default AFT windows, frequency deviation is eliminated
Influence to television image, television image will keep clear and stablize, and can stop carrying out at AFT the pending signal at this time
Reason.
In the present embodiment, by obtaining default AFT windows, and pending signal is carried out at automatic frequency tuning AFT
Reason；Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；When the frequency deviation not
When in the default AFT windows, the target AFT windows more than the default AFT windows are obtained, by the target AFT of acquisition
Window returns to described the step of carrying out AFT processing to the pending signal as new default AFT windows；When the frequency
When partially in the default AFT windows, stop carrying out AFT processing to the pending signal.Since the present embodiment calls in advance
If AFT windows, frequency deviation is returned in default AFT windows, television image can be made to keep steady and audible, improve user experience.
With reference to Fig. 3, Fig. 3 is the flow diagram of TV nonstandard signal processing method second embodiment of the present invention, based on upper
Embodiment shown in Fig. 2 is stated, proposes the second embodiment of TV nonstandard signal processing method of the present invention.
In a second embodiment, the step S10, specifically includes：
Step S101：Detecting that when carrying out AFT processing to pending signal, acquisition is current to adjust number；
Step S102：By the current adjusting number compared with default adjusting number, when the current adjusting number
During more than the default adjusting number, the default AFT windows are obtained, and AFT processing is carried out to the pending signal.
It is understood that when adjusting, number is more, and the frequency deviation of the pending signal still can not be adjusted to fixed
When in AFT windows, illustrate that the fixed AFT windows are smaller, it is necessary to call larger AFT windows to replace current AFT windows.
Therefore, determine when to obtain the default AFT windows by adjusting number.
It should be noted that the current adjusting number is under the fixation AFT windows of general television set, AFT tune is carried out
The adjusting number in number, such as one minute is adjusted during section in the corresponding cycle.The default adjusting number refers to setting in advance
The adjusting number put, under normal circumstances, can be accurate by pending Signal Regulation in number in default adjust if AFT windows are suitable
Really, thus using the default number that adjusts accurate standard can be adjusted as the current number that adjusts of judgement.
Further, after the step S102, the TV nonstandard signal processing method further includes：
When the current adjusting number is no more than the default adjusting number, stop carrying out the pending signal
AFT processing.
It is understood that when the current adjusting number is no more than the default adjusting number, illustrate at this time pre-
If adjusting in number, the pending signal adjusted completion, at this point, stopping handling the pending signal.
In the concrete realization, by taking default adjusting number is 20 time per minute as an example, obtain and currently adjust number, and judge institute
The current number that adjusts is stated whether more than the default adjusting number, it is described current if it is 10 times per minute currently to adjust number
It adjusts number and is less than the default adjusting number, at this point, pending Signal Regulation is completed, stop adjusted；It is if current
It is 30 times per minute to adjust number.Then the current adjusting number is more than the default adjusting number, and illustrate to use at this time consolidates
Determine that AFT windows are smaller, the default AFT windows than fixed AFT windows greatly will be obtained, the default AFT windows are replaced this and are fixed
AFT windows.Certainly, if using default AFT windows at this time, the new default AFT window bigger than default AFT windows will be obtained
Mouthful, it is completed until adjusting.
In the present embodiment, by detecting that when carrying out AFT processing to pending signal, acquisition is current to adjust number；
By the current number that adjusts compared with default adjusting number, when the current adjusting number is more than the default adjusting time
During number, the default AFT windows are obtained, and AFT processing is carried out to the pending signal.When the current adjusting number is little
When the default adjusting number, stop carrying out AFT processing to the pending signal.Since the present embodiment is by adjusting number
Judge whether currently used AFT windows are suitable, it is determined that when replace AFT windows.
With reference to Fig. 4, Fig. 4 is the flow diagram of TV nonstandard signal processing method 3rd embodiment of the present invention, based on upper
Embodiment shown in Fig. 2 is stated, proposes the 3rd embodiment of TV nonstandard signal processing method of the present invention.
In the present embodiment, the step S10, specifically includes：
Default AFT windows are obtained, and obtain the current frequency offset of the pending signal, according to the current frequency offset to described
The frequency of pending signal is tuned.
It should be noted that the current frequency offset refers to the current frequency offset of the pending signal, known
In the case of the current frequency offset, the frequency of the pending signal can be tuned according to the current frequency offset, it should
Current frequency offset is adjusted to zero.
Further, the step S10, specifically includes：
Step S103：The current frequency offset of the pending signal is obtained, judges the offset type of the current frequency offset；
Step S104：The frequency of the pending signal is tuned according to the offset type.
It is understood that the offset type of the current frequency offset includes offsetting up and offseting downward, known described
In the case of the offset type of current frequency offset, the frequency of the pending signal can be tuned according to the offset type,
The current frequency offset is adjusted to zero.
Further, the step S104, specifically includes：
Step S1041：When the offset type is on the upper side, the frequency of the pending signal is adjusted downwards to a step
It is long；
When the offset type is on the lower side, the frequency of the pending signal is adjusted up a step-length.
It should be noted that the step-length is referred in Primary regulation, to the regulated quantity that frequency is adjusted, for example, step-length
For 10KHz, i.e., adjust every time and frequency is adjusted into 10KHz.When the offset type is on the upper side, illustrate that frequency is offset up,
Frequency is adjusted downwards, adjusts a step-length every time, is completed until adjusting.When the offset type is on the lower side, illustrate frequency
It offsets downward, frequency is adjusted up, adjust a step-length every time, completed until adjusting.
In the present embodiment, the current frequency offset of the pending signal is obtained, judges the offset type of the current frequency offset；
When the offset type is on the upper side, the frequency of the pending signal is adjusted into downwards a step-length；When the offset type
For it is on the lower side when, the frequency of the pending signal is adjusted up a step-length.Due to obtaining the offset of the pending signal
Type, can according to the offset type being adjusted step-length of frequency of pending signal, progressively convergence standard value,
Realize the processing to the pending signal.
With reference to Fig. 5, Fig. 5 is the flow diagram of TV nonstandard signal processing method fourth embodiment of the present invention, based on upper
Embodiment shown in Fig. 2 is stated, proposes the fourth embodiment of TV nonstandard signal processing method of the present invention.
In the present embodiment, the step S30, specifically includes：
Step S301：When the frequency deviation is not in the default AFT windows, obtain bigger than the default AFT windows
The target AFT windows of preset value using the target AFT windows of acquisition as new default AFT windows, and are returned and described treated to described
Handle the step of signal carries out AFT processing.
It is understood that the preset value is a pre-set frequency values, such as 20KHz, in the default AFT
When the frequency deviation of the pending signal can not be adjusted in the default AFT windows by window, illustrate that the default AFT windows are smaller,
The AFT windows that bigger need to be obtained are replaced the default AFT windows, will to continue AFT processing to the pending signal
The frequency deviation of the pending signal is adjusted in the AFT windows of the bigger, realizes the adjusting of the pending signal, ensures that TV is drawn
The clarity and stability in face.
In the concrete realization, when the frequency deviation is not in the default AFT windows, the default AFT windows are added
The upper preset value, obtains target AFT windows, using target AFT windows as new default AFT windows, and in newly pre-
If under AFT windows, AFT processing is carried out to the pending signal again, and can not be adjusted to the new AFT in frequency deviation and preset window
When in mouthful, the newer AFT windows of the default AFT window newer than this preset value described greatly are obtained, until to the pending letter
Number adjusting processing complete.
In the present embodiment, it is more default than described by when the frequency deviation is not in the default AFT windows, obtaining
The target AFT windows of the big preset value of AFT windows using the target AFT windows of acquisition as new default AFT windows, and return to institute
State the step of AFT processing is carried out to the pending signal.
Due to obtaining the target AFT windows of preset value bigger than default AFT windows, default AFT is determined by the preset value
The Substitution Rules of window allow AFT windows to be incremented by by preset value is orderly, so as to progressively examine frequency deviation whether in AFT windows.
In addition, the embodiment of the present invention also proposes a kind of computer readable storage medium, the computer readable storage medium
On be stored with TV nonstandard signal processing routine, following behaviour is realized when the TV nonstandard signal processing routine is executed by processor
Make：
Default AFT windows are obtained, and automatic frequency tuning AFT processing is carried out to pending signal；
Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；
When the frequency deviation is not in the default AFT windows, the target AFT more than the default AFT windows is obtained
Window using the target AFT windows of acquisition as new default AFT windows, and returns described to the pending signal progress AFT
The step of processing；
When the frequency deviation is in the default AFT windows, stop carrying out AFT processing to the pending signal.
Further, following operation is also realized when the TV nonstandard signal processing routine is executed by processor：
Detecting that when carrying out AFT processing to pending signal, acquisition is current to adjust number；
By the current adjusting number compared with default adjusting number, when the current adjusting number is more than described pre-
If adjust number, the default AFT windows are obtained, and AFT processing is carried out to the pending signal.
Further, following operation is also realized when the TV nonstandard signal processing routine is executed by processor：
When the current adjusting number is no more than the default adjusting number, stop carrying out the pending signal
AFT processing.
Further, following operation is also realized when the TV nonstandard signal processing routine is executed by processor：
Default AFT windows are obtained, and obtain the current frequency offset of the pending signal, according to the current frequency offset to described
The frequency of pending signal is tuned.
Further, following operation is also realized when the TV nonstandard signal processing routine is executed by processor：
The current frequency offset of the pending signal is obtained, judges the offset type of the current frequency offset；
The frequency of the pending signal is tuned according to the offset type.
Further, following operation is also realized when the TV nonstandard signal processing routine is executed by processor：
When the offset type is on the upper side, the frequency of the pending signal is adjusted into downwards a step-length；
When the offset type is on the lower side, the frequency of the pending signal is adjusted up a step-length.
Further, following operation is also realized when the TV nonstandard signal processing routine is executed by processor：
When the frequency deviation is not in the default AFT windows, the mesh of preset value bigger than the default AFT windows is obtained
Mark AFT windows, using the target AFT windows of acquisition as newly default AFT windows, and return it is described to the pending signal into
The step of row AFT processing.
Further, following operation is also realized when the TV nonstandard signal processing routine is executed by processor：
By the frequency deviation of treated pending signal compared with the default AFT windows, whether the frequency deviation is judged
Less than the default AFT windows.
In the present embodiment, by obtaining default AFT windows, and pending signal is carried out at automatic frequency tuning AFT
Reason；Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；When the frequency deviation not
When in the default AFT windows, the target AFT windows more than the default AFT windows are obtained, by the target AFT of acquisition
Window returns to described the step of carrying out AFT processing to the pending signal as new default AFT windows；When the frequency
When partially in the default AFT windows, stop carrying out AFT processing to the pending signal.Since the present embodiment calls in advance
If AFT windows, frequency deviation is returned in default AFT windows, television image can be made to keep steady and audible, improve user experience.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes as this process, method, article or system institute inherently
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or system.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
The use of word first, second, and third does not indicate that any order, can these words be construed to title.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, the computer software product be stored in one it is computer-readable
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions use so that a station terminal equipment (can be mobile phone,
Computer, server, air conditioner or network equipment etc.) perform method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of TV nonstandard signal processing method, which is characterized in that the TV nonstandard signal processing method includes following step
Suddenly：
Default AFT windows are obtained, and automatic frequency tuning AFT processing is carried out to pending signal；
Whether the frequency deviation for judging to carry out AFT treated pending signals is in the default AFT windows；
When the frequency deviation is not in the default AFT windows, the target AFT windows more than the default AFT windows are obtained,
Using the target AFT windows of acquisition as new default AFT windows, and return described to the pending signal progress AFT processing
The step of；
When the frequency deviation is in the default AFT windows, stop carrying out AFT processing to the pending signal.
2. TV nonstandard signal processing method as described in claim 1, which is characterized in that described obtain presets AFT windows, and
AFT processing is carried out to pending signal, is specifically included：
Detecting that when carrying out AFT processing to pending signal, acquisition is current to adjust number；
By the current adjusting number compared with default adjusting number, when the current adjusting number is more than the default tune
When saving number, the default AFT windows are obtained, and AFT processing is carried out to the pending signal.
3. TV nonstandard signal processing method as claimed in claim 2, which is characterized in that described by the current adjusting number
After compared with default adjusting number, the TV nonstandard signal processing method further includes：
When the current adjusting number is no more than the default adjusting number, stop carrying out at AFT the pending signal
Reason.
4. TV nonstandard signal processing method as described in claim 1, which is characterized in that described obtain presets AFT windows, and
AFT processing is carried out to pending signal, is specifically included：
Default AFT windows are obtained, and obtain the current frequency offset of the pending signal, wait to locate to described according to the current frequency offset
The frequency of reason signal is tuned.
5. TV nonstandard signal processing method as claimed in claim 4, which is characterized in that described to obtain the pending signal
Current frequency offset, the frequency of the pending signal is tuned according to the current frequency offset, is specifically included：
The current frequency offset of the pending signal is obtained, judges the offset type of the current frequency offset；
The frequency of the pending signal is tuned according to the offset type.
6. TV nonstandard signal processing method as claimed in claim 5, which is characterized in that described according to the offset type pair
The frequency of the pending signal is tuned, and is specifically included：
When the offset type is on the upper side, the frequency of the pending signal is adjusted into downwards a step-length；
When the offset type is on the lower side, the frequency of the pending signal is adjusted up a step-length.
7. such as claim 1-6 any one of them TV nonstandard signal processing methods, which is characterized in that described to work as the frequency deviation
When being not in the default AFT windows, the target AFT windows more than the default AFT windows are obtained, by the target of acquisition
AFT windows return to described the step of carrying out AFT processing to the pending signal as new default AFT windows, specific to wrap
It includes：
When the frequency deviation is not in the default AFT windows, the target of preset value bigger than the default AFT windows is obtained
AFT windows using the target AFT windows of acquisition as new default AFT windows, and return described to the pending signal progress
The step of AFT processing.
8. such as claim 1-6 any one of them TV nonstandard signal processing methods, which is characterized in that described to judge to carry out
Whether the frequency deviation of AFT treated pending signals specifically includes in the default AFT windows：
By the frequency deviation of treated pending signal compared with the default AFT windows, judge whether the frequency deviation is less than
The default AFT windows.
9. a kind of TV nonstandard signal processing unit, which is characterized in that described device includes：It memory, processor and is stored in
On the memory and the TV nonstandard signal processing routine that can run on the processor, the TV nonstandard signal processing
The step such as claim 1 to 8 any one of them TV nonstandard signal processing method is realized when program is performed by the processor
Suddenly.
10. a kind of computer readable storage medium, which is characterized in that TV nonstandard letter is stored on the computer-readable medium
Number processing routine is realized when the TV nonstandard signal processing routine is executed by processor as described in any one of claim 1 to 8
TV nonstandard signal processing method the step of.
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| CN201711389124.3A CN108111788B (en) | 2017-12-20 | 2017-12-20 | Television non-standard signal processing method and device and computer readable storage medium |
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| CN201711389124.3A CN108111788B (en) | 2017-12-20 | 2017-12-20 | Television non-standard signal processing method and device and computer readable storage medium |
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