CN106454473B - Clock adjustment, device, terminal and play system - Google Patents
Clock adjustment, device, terminal and play system Download PDFInfo
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- CN106454473B CN106454473B CN201610882775.5A CN201610882775A CN106454473B CN 106454473 B CN106454473 B CN 106454473B CN 201610882775 A CN201610882775 A CN 201610882775A CN 106454473 B CN106454473 B CN 106454473B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
- H04N21/8113—Monomedia components thereof involving special audio data, e.g. different tracks for different languages comprising music, e.g. song in MP3 format
Abstract
The embodiment of the invention provides a kind of clock adjustment, device, terminal and play system, accumulated time error of this method using acquisition in preset duration；According to the preset duration and the accumulated time error calculation clock rate error；Clock rate is adjusted according to the clock rate error.After the program calculates the clock rate error of clock adjustment apparatus, the clock rate of the clock adjustment apparatus is adjusted, so that the system clock of the clock adjustment apparatus is synchronous with the holding of the system clock of reference time.When multiple clock adjustment apparatus plays identical audio data as playback equipment, it is ensured that multiple playback equipment is played simultaneously, and in terms of existing technologies, the synchronism of playing audio-fequency data between multiple playback equipments can be improved.
Description
Technical field
The present invention relates to technical field of electronic equipment, and in particular to a kind of clock adjustment, device, terminal and plays system
System.
Background technique
With the improvement of living standards, audio-visual devices play important role in people's lives.It currently, will be multiple
Music player devices (for example, speaker, player, mobile phone etc.) and control equipment are interconnected by wired or wireless network,
A play system is formed, identical music is played simultaneously, has been widely used.
In above-mentioned play system, each equipment has independent system clock.Each playback equipment according to its own
System clock plays music.However, each playback equipment and the system clock for controlling equipment are not always synchronous.It is each
There may be the subtle time differences each other for playback equipment and control equipment.When multiple playback equipments play identical music
When, the above-mentioned subtle time difference causes the playback progress of each playback equipment inconsistent, thereby results between multiple playback equipments
Synchronism is low.
Summary of the invention
The embodiment of the present invention provides a kind of clock adjustment, device, terminal and play system, and multiple broadcastings can be improved
The synchronism of playing audio-fequency data between equipment.
The embodiment of the present invention provides a kind of clock adjustment, comprising:
Obtain the accumulated time error in preset duration；
According to the preset duration and the accumulated time error calculation clock rate error；
Clock rate is adjusted according to the clock rate error.
Correspondingly, the embodiment of the present invention also provides a kind of clock adjustment apparatus, comprising:
Module is obtained, for obtaining the accumulated time error in preset duration；
Computing module, for according to the preset duration and the accumulated time error calculation clock rate error；
Adjustment module, for clock rate to be adjusted according to the clock rate error.
The embodiment of the present invention also provides a kind of terminal, comprising:
Touch screen, for receiving the touch operation of user；
It is stored with the memory of executable program code；
The processor coupled with the memory；
The processor calls the executable program code stored in the memory, executes above-mentioned clock adjustment.
The embodiment of the present invention also provides a kind of play system, including broadcast control device and at least one playback equipment, should
Playback equipment is connect by network with the broadcast control device, which includes:
It is stored with the memory of executable program code；
The processor coupled with the memory；
The processor calls the executable program code stored in the memory, executes above-mentioned clock adjustment.
Accumulated time error of the embodiment of the present invention using acquisition in preset duration；According to the preset duration and the accumulation
Time error calculates clock rate error；Clock rate is adjusted according to the clock rate error.When the program calculates
After the clock rate error of clock regulating device, the clock rate of the clock adjustment apparatus is adjusted, so that the clock is adjusted
The system clock of device is synchronous with the holding of the system clock of reference time.When there are multiple clock adjustment apparatus, when multiple
The system clock of clock regulating device can the clock adjusting dress synchronous namely multiple with the holding of the system clock of the reference time
It is synchronous that clock is able to maintain between setting.When multiple clock adjustment apparatus plays identical audio data as playback equipment,
It can guarantee that multiple playback equipment is played simultaneously, in terms of existing technologies, can be improved and broadcast between multiple playback equipments
Put the synchronism of audio data.
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 evident 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 the flow diagram for the clock adjustment that the embodiment of the present invention one provides.
Fig. 2 is the composition schematic diagram of the play system in the embodiment of the present invention two.
Fig. 3 is the flow diagram of clock adjustment provided by Embodiment 2 of the present invention.
Fig. 4 is the structural schematic diagram for the first clock adjustment apparatus that the embodiment of the present invention three provides.
Fig. 5 is the structural schematic diagram for second of clock adjustment apparatus that the embodiment of the present invention three provides.
Fig. 6 is the structural schematic diagram for the third clock adjustment apparatus that the embodiment of the present invention three provides.
Fig. 7 is the structural schematic diagram for the first terminal that the embodiment of the present invention four provides.
Fig. 8 is the structural schematic diagram for second of terminal that the embodiment of the present invention four provides.
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.Obviously, 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.
Description and claims of this specification and term " first " in above-mentioned attached drawing, " second ", " third " etc.
(if present) is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be appreciated that this
The object of sample description is interchangeable under appropriate circumstances.In addition, term " includes " and " having " and their any deformation, meaning
Figure, which is to cover, non-exclusive includes.For example, containing the process, method of series of steps or containing a series of modules or list
The device of member, terminal, system those of are not necessarily limited to be clearly listed step or module or unit, can also include unclear
The step of ground is listed or module or unit also may include its intrinsic for these process, methods, device, terminal or system
Its step or module or unit.
The embodiment of the present invention provides a kind of clock adjustment, device, terminal and play system, will carry out respectively below detailed
It describes in detail bright.
Embodiment one
The present embodiment will be described from the angle of clock adjustment apparatus, which there is audio to play function
Can, therefore the clock adjustment apparatus can be considered as playback equipment.The clock adjustment apparatus can be with audio playing function
Autonomous device (for example, intelligent sound box, audio player etc.), the clock adjustment apparatus also can integrate in the terminal, the terminal
It can be the equipment such as smart phone, tablet computer.
A kind of clock adjustment, for the playback equipment in play system, the playback equipment is by executing the clock tune
Own system clock is adjusted in section method.The clock adjustment includes: that the accumulated time obtained in preset duration is missed
Difference；According to the preset duration and the accumulated time error calculation clock rate error；According to the clock rate error clock synchronization clock rate
Rate is adjusted.
As shown in Figure 1, the clock adjustment, detailed process may include:
S101 obtains the accumulated time error in preset duration.
In concrete application, clock adjustment apparatus obtains the accumulated time error in preset duration.The preset duration can be with
It is a pre-set duration numerical value.For example, preset duration can be 1 hour.The clock adjustment apparatus is obtained at this 1 hour
Interior accumulated time error.The accumulated time error is the time between the system clock of the clock adjustment apparatus and reference time
Difference.The reference time can be considered as the standard time.For example, the reference time can be the system clock of exterior terminal when
Between.
In some embodiments, obtain accumulated time error in preset duration can with specifically includes the following steps:
Obtain the first time error between the first moment and reference time；
The second time error between the second moment and the reference time after obtaining preset duration；
Accumulated time error is obtained according to the first time error and second time error.
In practical application, the first moment can be any time.The reference time can be considered as the standard time.When the reference
Between can be broadcast control device in play system system clock time.The broadcast control device is for when controlling multiple
Clock regulating device (playback equipment) playing audio-fequency data.The broadcast control device can be smart phone, tablet computer, personal meter
The equipment such as calculation machine.
Specifically, of clock adjustment apparatus between the first moment and reference time can be obtained by the following method
One time error: clock adjustment apparatus is using current time as the first moment, to broadcast control device sending time acquisition request；
After broadcast control device receives the time acquisition request, itself present system time is sent to the clock adjustment apparatus；Clock
The system time that the own system time sends with the broadcast control device received is compared by regulating device, obtains itself
Difference between system time and the system time of the broadcast control device, as the first time error.
It is communicated between the clock adjustment apparatus and the broadcast control device by cable network or wireless network, therefore
Information transmitting between the clock adjustment apparatus and the broadcast control device is with electric signal (voltage or electric current) or electromagnetic wave
Form carries out.And the transmission speed of electric signal and electromagnetic wave is quickly, electric signal or electromagnetic wave are broadcast in the clock adjustment apparatus with this
The passing time put between control device can be ignored.Meanwhile the electronic equipments such as clock adjustment apparatus, broadcast control device
Data processing speed quickly, the clock adjustment apparatus and the broadcast control device processing data time can also ignore not
Meter.It is therefore contemplated that at the time of the clock adjustment apparatus receives the system time of broadcast control device transmission for this
One moment.
In one preferred embodiment, when which receives the system of broadcast control device transmission
Between after, the system time of the clock adjustment apparatus itself is revised as to the system time of the broadcast control device.At this point, the clock
The system clock of regulating device and the system clock of the broadcast control device are identical, i.e., the first time error is 0.
Obtain preset duration after the second moment and the reference time between the second time error can specifically include with
Lower step:
After obtaining the first time error between the first moment and reference time, start timing；
When the timing reaches preset duration, the second time error between the reference time is obtained.
Specifically, after which gets first time error, start timing.In timing course, persistently sentence
Whether the duration of the timing of breaking reaches preset duration.The preset duration is a pre-set duration numerical value.For example, this is default
Shi Changwei 1 hour.When the duration of timing reaches the preset duration, when the clock adjustment apparatus is using current time as second
It carves.At the second moment, the clock adjustment apparatus is again to the broadcast control device sending time acquisition request；Play control dress
It sets after receiving the time acquisition request, sends itself present system time to the clock adjustment apparatus again；Clock adjusts dress
It sets and is compared the current own system time with the system time of the broadcast control device received, acquisition currently itself is
The difference united between time and the system time of the broadcast control device, as second time error.At this point it is possible to think this
Clock adjustment apparatus is second moment at the time of receiving the system time of broadcast control device transmission.
Then, accumulated time error is obtained according to the first time error and second time error.The accumulated time is missed
Difference is the accumulation of time error of the clock adjustment apparatus in the preset duration.
In some embodiments, obtaining accumulated time error according to the first time error and second time error can be with
Specifically includes the following steps:
Calculate the difference between second time error and the first time error；
Using the difference as accumulated time error.
Specifically, the difference that can be calculated by the following formula between second time error and the first time error:
T=t2-t1
Wherein, T is the difference that need to be calculated, t2For second time error, t1For the first time error.Calculate difference T
Afterwards, difference T is set by accumulated time error.As first time error t1When being 0, accumulated time error T=t2。
When accumulated time error T is positive value, indicate the system clock of the clock adjustment apparatus than the broadcast control device
System clock it is fast；When accumulated time error T is negative value, indicate that the system clock of the clock adjustment apparatus is controlled than the broadcasting
The system clock of device is slow；When accumulated time error T is 0, system clock and the broadcasting control of the clock adjustment apparatus are indicated
The system clock of device processed is identical.
S102, according to the preset duration and the accumulated time error calculation clock rate error.
It, can be with after getting accumulated time error of the clock adjustment apparatus in the preset duration in concrete application
The clock rate error of the clock adjustment apparatus is calculated according to the following formula.The clock rate error is the clock adjustment apparatus
The difference of the system-clock rate of system-clock rate and the broadcast control device.
Wherein, R is the clock rate error that need to be calculated, and T is accumulated time error, T0For the preset duration.For example, accumulation
Time error T is 2 seconds, preset duration T0It is 1 hour, then can calculates clock rate error
S103 is adjusted clock rate according to the clock rate error.
In concrete application, after the clock rate error for calculating the clock adjustment apparatus, according to the clock rate error pair
The clock rate of the clock adjustment apparatus is adjusted.Specifically, clock rate is adjusted according to the clock rate error
It may comprise steps of:
Clock rate adjustment factor is calculated according to the clock rate error；
Clock rate is adjusted according to the clock rate adjustment factor.
Specifically, clock rate adjustment factor can be calculated according to the following formula:
P=1-R
Wherein, P is the clock rate adjustment factor that need to be calculated, and R is the clock rate error.For example, When, it can
To calculate clock rate adjustment factor
Then, the clock rate of the clock adjustment apparatus is adjusted according to the clock rate adjustment factor.Specifically
Regulative mode can be the original clock rate of the clock adjustment apparatus multiplied by clock rate adjustment factor P.Clock synchronization clock rate
After rate is adjusted, the clock rate of the clock adjustment apparatus can be made identical as the clock rate of the broadcast control device.Cause
This, will not generate new accumulated time error again, can make the clock between the clock adjustment apparatus and the broadcast control device
The system clock of regulating device is synchronous with the holding of the system clock of the broadcast control device.
In one preferred embodiment, which sends out in the second reception to the broadcast control device
After the system time sent, the system time of the clock adjustment apparatus itself is revised as to the system time of the broadcast control device.
At this point, the system time of the clock adjustment apparatus is identical as the system time of the broadcast control device, and the clock adjusts dress
The clock rate set is also identical as the clock rate of the broadcast control device.Therefore, the clock adjustment apparatus and the broadcasting control
It will not generation time error again between device.
When it is implemented, the present invention is not limited by the execution sequence of described each step, conflict is not being generated
In the case of, certain steps can also be carried out using other sequences or be carried out simultaneously.
From the foregoing, it will be observed that clock adjustment provided in an embodiment of the present invention, when using obtaining the accumulation in preset duration
Between error；According to the preset duration and the accumulated time error calculation clock rate error；According to the clock rate error clock synchronization
Clock rate rate is adjusted.After the program calculates the clock rate error of clock adjustment apparatus, to the clock adjustment apparatus when
Clock rate rate is adjusted, so that the system clock of the clock adjustment apparatus is synchronous with the holding of the system clock of reference time.When depositing
In multiple clock adjustment apparatus, the system clock of multiple clock adjustment apparatus can be with the system clock of the reference time
It is synchronous that clock is able to maintain between holding synchronization namely multiple clock adjustment apparatus.When multiple clock adjustment apparatus conduct
Playback equipment play identical audio data when, it is ensured that multiple playback equipment is played simultaneously, compared with the existing technology and
Speech, can be improved the synchronism of playing audio-fequency data between multiple playback equipments.
Embodiment two
According to clock adjustment described in embodiment one, citing is described in further detail below.
In the present embodiment, it will be specifically integrated in smart phone with clock adjustment apparatus, with the clock in smart phone
It is described in detail for adjusting method.
As shown in Fig. 2, for the composition schematic diagram of one of the present embodiment play system.Play system is by playing control dress
Set 210 and the composition of multiple smart phones 211.Multiple smart phone 211 is used as playback equipment playing audio-fequency data.The broadcasting
Control device 210 can be the equipment such as other smart phones, tablet computer, personal computer.The broadcast control device 210 with should
Data communication is carried out by wireless network (such as WiFi) between multiple smart phones 211.
As shown in figure 3, the clock adjustment, detailed process can be such that
S201 obtains the first time error between the first moment and reference time.
Specifically, the first moment can be any time.The reference time can be considered as the standard time.The reference time can
Be broadcast control device in play system system clock time.The broadcast control device is for controlling multiple intelligent hands
Machine playing audio-fequency data.
Specifically, when can obtain first of smart phone between the first moment and reference time by the following method
Between error: smart phone is using current time as the first moment, to broadcast control device sending time acquisition request；Play control
After device receives the time acquisition request, itself present system time is sent to the smart phone；Itself is by smart phone
The system time that the system time sends with the broadcast control device received is compared, and obtains itself system time and the broadcasting
Difference between the system time of control device, as the first time error.It is broadcast it is considered that the smart phone receives this
It is first moment at the time of putting the system time of control device transmission.
In one preferred embodiment, which receives the system time of broadcast control device transmission
Afterwards, the system time of the smart phone itself is revised as to the system time of the broadcast control device.At this point, the smart phone
System clock is identical as the system clock of the broadcast control device, i.e., the first time error is 0.
S202 starts timing.
Specifically, after which gets first time error, start timing.
S203 obtains the second time error between the reference time when the timing reaches preset duration.
Specifically, in timing course, persistently judge whether the duration of the timing reaches preset duration.The preset duration is pre-
A duration numerical value being first arranged.For example, the preset duration is 1 hour.When the duration of timing reaches the preset duration, the intelligence
Energy mobile phone is using current time as the second moment.At the second moment, which sends to the broadcast control device again
Time acquisition request；After broadcast control device receives the time acquisition request, it is current that itself is sent to the smart phone again
System time；The smart phone compares current own system time and the system time of the broadcast control device received
Compared with, obtain the difference between current own system time and the system time of the broadcast control device, as second time miss
Difference.At this point it is possible to think the smart phone receive the broadcast control device transmission system time at the time of for this second when
It carves.
S204 calculates the difference between second time error and the first time error.
Specifically, the difference that can be calculated by the following formula between second time error and the first time error:
T=t2-t1
Wherein, T is the difference that need to be calculated, t2For second time error, t1For the first time error.When at the first time
Error t1When being 0, accumulated time error T=t2。
S205, using the difference as accumulated time error.
Specifically, after calculating the difference between the second time error and first time error, accumulated time error is set
It is set to difference T.When accumulated time error T is positive value, indicate the system clock of the smart phone than the broadcast control device
System clock it is fast；When accumulated time error T is negative value, indicate the system clock of the smart phone than the broadcast control device
System clock it is slow；When accumulated time error T is 0, the system clock and the broadcast control device of the smart phone are indicated
System clock is identical.
S206, according to the preset duration and the accumulated time error calculation clock rate error.
It specifically, can be according to following after getting accumulated time error of the smart phone in the preset duration
Formula calculates the clock rate error of the smart phone.The clock rate error is the system-clock rate of the smart phone and is somebody's turn to do
The difference of the system-clock rate of broadcast control device.
Wherein, R is the clock rate error that need to be calculated, and T is accumulated time error, T0For the preset duration.For example, accumulation
Time error T is 2 seconds, preset duration T0It is 1 hour, then can calculates clock rate error
S207 calculates clock rate adjustment factor according to the clock rate error.
Specifically, clock rate adjustment factor can be calculated according to the following formula:
P=1-R
Wherein, P is the clock rate adjustment factor that need to be calculated, and R is the clock rate error.For example, When, it can
To calculate clock rate adjustment factor
S208 is adjusted clock rate according to the clock rate adjustment factor.
Specifically, after calculating clock rate adjustment factor P, according to the clock rate adjustment factor P to the smart phone
Clock rate be adjusted.Specific regulative mode can be the original clock rate of the smart phone multiplied by clock rate when this
Rate adjustment factor P.After clock rate is adjusted, the clock rate of the smart phone and the broadcast control device can be made
Clock rate is identical.Therefore, new accumulated time error will not be generated between the smart phone and the broadcast control device again, it can
So that the system clock of the smart phone is synchronous with the holding of the system clock of the broadcast control device.
In one preferred embodiment, the smart phone is controlled in the second reception to the broadcasting in step S203
After the system time that device is sent, when the system time of the smart phone itself is revised as the system of the broadcast control device
Between.At this point, the system time of the smart phone is identical as the system time of the broadcast control device, and the smart phone when
Clock rate rate is also identical as the clock rate of the broadcast control device.Therefore, between the smart phone and the broadcast control device not
Understand generation time error again.
When it is implemented, the present invention is not limited by the execution sequence of described each step, conflict is not being generated
In the case of, certain steps can also be carried out using other sequences or be carried out simultaneously.
From the foregoing, it will be observed that clock adjustment provided in an embodiment of the present invention, using acquisition in the first moment and reference time
Between first time error；Start timing；When the timing reaches preset duration, second between the reference time is obtained
Time error；Calculate the difference between second time error and the first time error；It is missed using the difference as accumulated time
Difference；According to the preset duration and the accumulated time error calculation clock rate error；Clock is calculated according to the clock rate error
Rate adaptation coefficient；Clock rate is adjusted according to the clock rate adjustment factor.The program calculates smart phone
After clock rate error, the clock rate of the smart phone is adjusted, so that the system clock of the smart phone and reference
The system clock of time keeps synchronizing.When there are multiple smart phones, the system clock of multiple smart phone can be with
It is synchronous that clock is able to maintain between the system clock holding synchronization of the reference time namely multiple smart phone.When multiple
Smart phone play identical audio data when, it is ensured that multiple smart phone is played simultaneously, compared with the existing technology and
Speech, can be improved the synchronism of playing audio-fequency data between multiple smart phones.
Embodiment three
In order to better implement above method, the embodiment of the present invention also provides a kind of clock adjustment apparatus, which can be with
It integrates in the terminal, which can be the equipment such as smart phone, tablet computer.
As shown in figure 4, the clock adjustment apparatus 300 may include: to obtain module 301, computing module 302, adjustment module
303, it is described in detail below:
The acquisition module 301, for obtaining the accumulated time error in preset duration；
The computing module 302, for according to the preset duration and the accumulated time error calculation clock rate error；
The adjustment module 303, for clock rate to be adjusted according to the clock rate error.
Preferably, as shown in figure 5, the acquisition module 301 includes: the first acquisition submodule 3011, the second acquisition submodule
3012, specific as follows:
First acquisition submodule 3011, for obtaining the first time error between the first moment and reference time；
First acquisition submodule 3011, between the second moment and the reference time after being also used to obtain preset duration
Second time error；
Second acquisition submodule 3012, when for obtaining accumulation according to the first time error and second time error
Between error.
Preferably, which is specifically used for:
Obtain the first time error between the first moment and reference time；
Start timing；
When the timing reaches preset duration, the second time error between the reference time is obtained.
Preferably, which is specifically used for:
Calculate the difference between second time error and the first time error；
Using the difference as accumulated time error.
Preferably, as shown in fig. 6, the adjustment module 303 includes: computational submodule 3031, adjusts submodule 3032, specifically
It is as follows:
The computational submodule 3031, for calculating clock rate adjustment factor according to the clock rate error；
The adjusting submodule 3032, for clock rate to be adjusted according to the clock rate adjustment factor.
When it is implemented, the above modules can be used as independent entity to realize, any combination can also be carried out, is made
It is realized for same or several entities.The specific implementation of the above modules can be found in the embodiment of the method for front, herein not
It repeats again.
From the foregoing, it will be observed that clock adjustment apparatus 300 provided in an embodiment of the present invention, is obtained by obtaining module 301 default
Accumulated time error in duration；Computing module 302 is missed according to the preset duration and the accumulated time error calculation clock rate
Difference；Adjustment module 303 is adjusted clock rate according to the clock rate error.The program calculates clock adjustment apparatus
After clock rate error, the clock rate of the clock adjustment apparatus is adjusted, so that when the system of the clock adjustment apparatus
Clock is synchronous with the holding of the system clock of reference time.When there are multiple clock adjustment apparatus, multiple clock adjustment apparatus
System clock can be protected between the clock adjustment apparatus synchronous namely multiple with the holding of the system clock of the reference time
It is synchronous to hold clock.When multiple clock adjustment apparatus plays identical audio data as playback equipment, it is ensured that this is more
A playback equipment is played simultaneously, and in terms of existing technologies, playing audio-fequency data between multiple playback equipments can be improved
Synchronism.
Example IV
The embodiment of the present invention also provides a kind of terminal, which can be the equipment such as smart phone, tablet computer.
As shown in fig. 7, terminal 400 may include: to obtain module 401, computing module 402, adjustment module 403, specifically retouch
It states as follows:
The acquisition module 401, for obtaining the accumulated time error in preset duration；
The computing module 402, for according to the preset duration and the accumulated time error calculation clock rate error；
The adjustment module 403, for clock rate to be adjusted according to the clock rate error.
Preferably, which includes: the first acquisition submodule, the second acquisition submodule, specific as follows:
First acquisition submodule, for obtaining the first time error between the first moment and reference time；
First acquisition submodule, second between the second moment and the reference time after being also used to obtain preset duration
Time error；
Second acquisition submodule is missed for obtaining accumulated time according to the first time error and second time error
Difference.
Preferably, which is specifically used for:
Obtain the first time error between the first moment and reference time；
Start timing；
When the timing reaches preset duration, the second time error between the reference time is obtained.
Preferably, which is specifically used for:
Calculate the difference between second time error and the first time error；
Using the difference as accumulated time error.
Preferably, which includes: computational submodule, adjusts submodule, specific as follows:
The computational submodule, for calculating clock rate adjustment factor according to the clock rate error；
The adjusting submodule, for clock rate to be adjusted according to the clock rate adjustment factor.
Aforesaid operations are for details, reference can be made to the embodiment of the method for front, and details are not described herein.
The embodiment of the present invention also provides another terminal, as shown in figure 8, the terminal 500 may include radio frequency (RF, Radio
Frequency) circuit 501, include one or more memory 502, the input unit of computer readable storage medium
503, display unit 504, sensor 505, voicefrequency circuit 506, Wireless Fidelity (WiFi, Wireless Fidelity) module
507, the components such as processor 508 and the power supply 509 of processing core are included one or more than one.Those skilled in the art
Member it is appreciated that terminal structure not structure paired terminal shown in Fig. 8 restriction, may include more more or fewer than illustrating
Component perhaps combines certain components or different component layouts.
Radio circuit 501 can be used for receiving and sending messages or communication process in signal send and receive, particularly, by base station
Downlink information receive after, transfer to one or more than one processor 508 processing；In addition, the data for being related to uplink are sent
To base station.In general, radio circuit 501 includes but is not limited to antenna, at least one amplifier, tuner, one or more oscillations
Device, subscriber identity module (SIM, Subscriber Identity Module) card, transceiver, coupler, low noise amplification
Device (LNA, Low Noise Amplifier), duplexer etc..In addition, radio circuit 501 can also by wireless communication with network
It is communicated with other equipment.Any communication standard or agreement, including but not limited to global system for mobile telecommunications can be used in the wireless communication
System (GSM, Global System of Mobile communication), general packet radio service (GPRS, General
Packet Radio Service), CDMA (CDMA, Code Division Multiple Access), wideband code division it is more
Location (WCDMA, Wideband Code Division Multiple Access), long term evolution (LTE, Long Term
Evolution), Email, short message service (SMS, Short Messaging Service) etc..
Memory 502 can be used for storing application program and data.It include that can hold in the application program that memory 502 stores
Line program code.Application program can form various functional modules.Processor 508 is stored in answering for memory 502 by operation
With program, thereby executing various function application and data processing.Memory 502 can mainly include storing program area and storage number
According to area, wherein storing program area can application program needed for storage program area, at least one function (for example sound plays function
Energy, image player function etc.) etc.；Storage data area can store according to terminal use created data (such as audio data,
Phone directory etc.) etc..In addition, memory 502 may include high-speed random access memory, it can also include non-volatile memories
Device, for example, at least a disk memory, flush memory device or other volatile solid-state parts.Correspondingly, memory
502 can also include Memory Controller, to provide the access of processor 508 and input unit 503 to memory 502.
Input unit 503 can be used for receiving number, character information or the user's characteristic information (such as fingerprint) of input, and
Generate keyboard related with user setting and function control, mouse, operating stick, optics or trackball signal input.Specifically
Ground, input unit 503 may include fingerprint recognition mould group.In some embodiments, input unit 503 can also include touch-sensitive table
Face.Touch sensitive surface, also referred to as touch screen or Trackpad collect touch operation (such as the user of user on it or nearby
Use the operation of any suitable object or attachment such as finger, stylus on touch sensitive surface or near touch sensitive surface), and according to
Preset formula drives corresponding attachment device.Optionally, touch sensitive surface may include touch detecting apparatus and touch control
Two parts of device.Wherein, the touch orientation of touch detecting apparatus detection user, and touch operation bring signal is detected, it will believe
Number send touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact seat
Mark, then gives processor 508, and can receive order that processor 508 is sent and be executed.Furthermore, it is possible to using resistance-type,
The multiple types such as condenser type, infrared ray and surface acoustic wave realize touch sensitive surface.In addition to touch sensitive surface, input unit 503 may be used also
To include other input equipments.Specifically, other input equipments can include but is not limited to physical keyboard, function key (such as sound
Measure control button, switch key etc.), trace ball, mouse, one of operating stick etc. or a variety of.
Display unit 504 can be used for showing information input by user or be supplied to user information and terminal it is various
Graphical user interface, these graphical user interface can be made of figure, text, icon, video and any combination thereof.Display
Unit 504 may include display panel.Optionally, can using liquid crystal display (LCD, Liquid Crystal Display),
The forms such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) configure display panel.Further
, touch sensitive surface can cover display panel, after touch sensitive surface detects touch operation on it or nearby, send processing to
Device 508 is followed by subsequent processing device 508 and is provided on a display panel accordingly according to the type of touch event to determine the type of touch event
Visual output.Although in fig. 8, touch sensitive surface and display panel are to realize input and input as two independent components
Function, but in some embodiments it is possible to touch sensitive surface and display panel are integrated and realizes and outputs and inputs function.
Terminal may also include at least one sensor 505, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ambient light
Light and shade adjust the brightness of display panel, proximity sensor can close display panel and/or back when terminal is moved in one's ear
Light.As a kind of motion sensor, gravity accelerometer can detect (generally three axis) acceleration in all directions
Size can detect that size and the direction of gravity when static, can be used to identify mobile phone posture application (such as horizontal/vertical screen switching,
Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；It can also configure as terminal
The other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, details are not described herein.
Voicefrequency circuit 506 can provide the audio interface between user and terminal by loudspeaker, microphone.Voicefrequency circuit
The audio data received can be converted into electric signal by 506, be transferred to loudspeaker, be converted to voice signal output by loudspeaker；
On the other hand, the voice signal of collection is converted to electric signal by microphone, is converted to audio number after being received by voicefrequency circuit 506
According to then such as another terminal will be sent to through radio circuit 501 after audio data output processor 508 handles, or by sound
Frequency is further processed according to output to memory 502.Voicefrequency circuit 506 is also possible that earphone jack, to provide peripheral hardware
The communication of earphone and terminal.
Wireless Fidelity (WiFi) belongs to short range wireless transmission technology, and terminal can be helped by wireless fidelity module 507
User sends and receive e-mail, browses webpage and access streaming video etc., it provides wireless broadband internet access for user.
Although Fig. 8 shows wireless fidelity module 507, but it is understood that, and it is not belonging to must be configured into for terminal, completely may be used
To omit within the scope of not changing the essence of the invention as needed.
Processor 508 is the control centre of terminal, using the various pieces of various interfaces and the entire terminal of connection, is led to
It crosses operation or executes the application program being stored in memory 502, and call the data being stored in memory 502, execute
The various functions and processing data of terminal, to carry out integral monitoring to terminal.Optionally, processor 508 may include one or
Multiple processing cores；Preferably, processor 508 can integrate application processor and modem processor, wherein application processor
Main processing operation system, user interface and application program etc., modem processor mainly handles wireless communication.It is understood that
, above-mentioned modem processor can not also be integrated into processor 508.
Terminal further includes the power supply 509 (such as battery) powered to all parts.Preferably, power supply can pass through power supply pipe
Reason system and processor 508 are logically contiguous, to realize management charging, electric discharge and power managed by power-supply management system
Etc. functions.Power supply 509 can also include one or more direct current or AC power source, recharging system, power failure inspection
The random components such as slowdown monitoring circuit, power adapter or inverter, power supply status indicator.
Although being not shown in Fig. 8, terminal can also include camera, bluetooth module etc., and details are not described herein.
Specifically in the present embodiment, the processor 508 in terminal can be according to following instruction, will be one or more
The corresponding executable program code of the process of application program is loaded into memory 502, and is stored in by processor 508 to run
Application program in memory 502, to realize various functions:
Obtain the accumulated time error in preset duration；According to the preset duration and the accumulated time error calculation clock
Rate error；Clock rate is adjusted according to the clock rate error.
Preferably, processor 508, which has, obtains module, computing module, adjustment module, is described in detail below:
Processor 508 is used to obtain the accumulated time error in preset duration by obtaining module；
Processor 508 is used to be missed by computing module according to the preset duration and the accumulated time error calculation clock rate
Difference；
Processor 508 is for being adjusted clock rate according to the clock rate error by adjustment module.
Aforesaid operations are for details, reference can be made to the embodiment of the method for front, and details are not described herein.
From the foregoing, it will be observed that being missed the embodiment of the invention provides a kind of terminal by the accumulated time obtained in preset duration
Difference；According to the preset duration and the accumulated time error calculation clock rate error；According to the clock rate error clock synchronization clock rate
Rate is adjusted.After the program calculates the clock rate error of terminal, the clock rate of the terminal is adjusted, so that should
The system clock of terminal is synchronous with the holding of the system clock of reference time.When there are multiple terminals, the system of multiple terminal
Clock can be able to maintain clock synchronization between the terminal synchronous namely multiple with the holding of the system clock of the reference time.
When multiple terminal plays identical audio data as playback equipment, it is ensured that multiple playback equipment is played simultaneously,
In terms of existing technologies, the synchronism of playing audio-fequency data between multiple playback equipments can be improved.
It should be noted that those of ordinary skill in the art will appreciate that whole in the various methods of above-described embodiment or
Part steps are relevant hardware can be instructed to complete by program, which can store in computer-readable storage medium
In matter, storage medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM,
Random Access Memory), disk or CD etc..
A kind of clock adjustment, device, terminal and play system is provided for the embodiments of the invention above to carry out
It is discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；Meanwhile for those skilled in the art, according to this
The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of clock adjustment characterized by comprising
Using current time as the first moment, to broadcast control device sending time acquisition request；
After the broadcast control device receives the time acquisition request, the own system time is compared with reference time
Compared with specifically including: after broadcast control device receives the time acquisition request, sending itself current system to clock adjustment apparatus
Time；The system time that the own system time sends with the broadcast control device received is compared by clock adjustment apparatus；
Wherein, the reference time is the system time that the broadcast control device received is sent；
Obtain the first time error between the own system time and the reference time；
The second time error between the second moment and the reference time after obtaining preset duration, specifically includes: second
When the moment, clock adjustment apparatus is again to broadcast control device sending time acquisition request；Broadcast control device receives the time
After acquisition request, itself present system time is sent to clock adjustment apparatus again；Clock adjustment apparatus is by current own system
Time is compared with the system time of the broadcast control device received, obtains the current own system time and plays control dress
The difference between system time set, as the second time error；
Accumulated time error is obtained according to the first time error and second time error；
According to the preset duration and the accumulated time error calculation clock rate error；
Clock rate adjustment factor is calculated according to the clock rate error；
Clock rate is adjusted according to the product of the clock rate adjustment factor and original clock rate.
2. clock adjustment according to claim 1, which is characterized in that second moment obtained after preset duration
The step of the second time error between the reference time, specifically includes:
After obtaining the first time error between the first moment and reference time, start timing；
When the timing reaches preset duration, the second time error between the reference time is obtained.
3. clock adjustment according to claim 1, which is characterized in that described according to the first time error and institute
The step of the second time error obtains accumulated time error is stated to specifically include:
Calculate the difference between second time error and the first time error；
Using the difference as accumulated time error.
4. a kind of clock adjustment apparatus characterized by comprising
First acquisition submodule is used for using current time as the first moment, to broadcast control device sending time acquisition request；
After the broadcast control device receives the time acquisition request, the own system time is compared with reference time
Compared with specifically including: after broadcast control device receives the time acquisition request, sending itself current system to clock adjustment apparatus
Time；The system time that the own system time sends with the broadcast control device received is compared by clock adjustment apparatus；
Wherein, the reference time is the system time that the broadcast control device received is sent；
Obtain the first time error between the own system time and the reference time；
The second time error between the second moment and the reference time after obtaining preset duration, specifically includes: second
When the moment, clock adjustment apparatus is again to broadcast control device sending time acquisition request；Broadcast control device receives the time
After acquisition request, itself present system time is sent to clock adjustment apparatus again；Clock adjustment apparatus is by current own system
Time is compared with the system time of the broadcast control device received, obtains the current own system time and plays control dress
The difference between system time set, as the second time error；
Second acquisition submodule is missed for obtaining accumulated time according to the first time error and second time error
Difference；
Computing module, for according to the preset duration and the accumulated time error calculation clock rate error；
Computational submodule, for calculating clock rate adjustment factor according to the clock rate error；
Submodule is adjusted, for carrying out according to the product of the clock rate adjustment factor and original clock rate to clock rate
It adjusts.
5. clock adjustment apparatus according to claim 4, which is characterized in that first acquisition submodule is specifically used for:
Obtain the first time error between the first moment and reference time；
Start timing；
When the timing reaches preset duration, the second time error between the reference time is obtained.
6. clock adjustment apparatus according to claim 4, which is characterized in that second acquisition submodule is specifically used for:
Calculate the difference between second time error and the first time error；
Using the difference as accumulated time error.
7. a kind of terminal characterized by comprising
Touch screen, for receiving the touch operation of user；
It is stored with the memory of executable program code；
The processor coupled with the memory；
The processor calls the executable program code stored in the memory, executes as appointed in claims 1 to 3
Clock adjustment described in one.
8. a kind of play system, which is characterized in that including broadcast control device and at least one playback equipment, the playback equipment
It is connect by network with the broadcast control device, the playback equipment includes:
It is stored with the memory of executable program code；
The processor coupled with the memory；
The processor calls the executable program code stored in the memory, executes as appointed in claims 1 to 3
Clock adjustment described in one.
9. a kind of storage medium, which is characterized in that computer program is stored in the storage medium, when the computer program
When running on computers, so that the computer perform claim requires 1 to 3 described in any item clock adjustments.
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