CN1619679A - Method of controlling playing procedure - Google Patents

Method of controlling playing procedure Download PDF

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Publication number
CN1619679A
CN1619679A CN 200310116588 CN200310116588A CN1619679A CN 1619679 A CN1619679 A CN 1619679A CN 200310116588 CN200310116588 CN 200310116588 CN 200310116588 A CN200310116588 A CN 200310116588A CN 1619679 A CN1619679 A CN 1619679A
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China
Prior art keywords
acceleration
playing
broadcast
speed
playing device
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CN 200310116588
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CN100367389C (en
Inventor
奚正宁
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Primax Electronics Ltd
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Primax Electronics Ltd
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Abstract

The present invention relates to a data playback method for playback device. It is mainly characterized by that the data of storage medium mounted in said playback device can be played back at an acceleration.

Description

The method of playing flow control
Technical field
The present invention relates to a kind of method in a playing device played data, particularly a kind of in the method for a playing device with an acceleration played data.
Background technology
Flourish along with the audio-visual multimedia technology, various video-audio playing devices are also popularized in each family gradually, for example traditional videocorder to now popular digital videocorder (digital video recorder) etc.Though the technology of various video-audio playing devices is more attained in maturation, for example improvement of audio-visual quality, improvement of storage medium or the like, the flow process control of its audio-visual broadcast does not still have too big change.
Generally speaking, the control of audio-visual playing flow is by broadcasts/time-outs, and the broadcasting speed speed is controlled, and three basic controlling key elements such as broadcast direction change are formed.And aspect the control of broadcasting speed speed, known broadcasting speed control is to be constant speed, promptly comes the speed of controls playing with uniform velocity, for example waits the adjustment of carrying out audio-visual broadcasting speed to twice speed, triple speed by static direct change.Yet, the fixing shortcoming of the acceleration of multiple or deceleration, be to satisfy fully the user first because of different application targets or because of various demands that subjective judgement produced, at any time adjust the speed of broadcast, for instance, if user's purpose is to search a specific scene, the control of the speed of its speed then can be with according to the degree near object scene, doing a change adjusts, promptly then broadcasting speed is slow more near object scene more, then broadcasting speed is fast more for the wide scene more, and the identification of broadcasting speed speed can be different because of user's different feeling, so the acceleration multiple that is fit to can because of the people with different because of the content of playing, and known playing device is if only provide the broadcasting speed of several fixedly multiples to select, and then do not apply now the trend that the hommization for video-audio playing device requires; Second in the process of switch speed,, therefore in handoff procedure, have and play irregularity and the generation of discontinuous situation because its switching mode is to be directly switch into the speed that desire is play.See also Fig. 1, Fig. 1 is known audio-visual broadcasting speed control and time relation figure.At Fig. 1 as can be seen, when time point t1, broadcasting speed is play by the static diploidy number that switches to suddenly, and when time point t2, broadcasting speed switches to quadruple suddenly by diploidy number and plays, so its switching mode is to be directly switch into the speed that desire is play, when the user views and admires audio-visual broadcast, just has and play irregularity and the generation of discontinuous situation.
Summary of the invention
The invention provides a kind of method that is used for a playing device played data, to solve the above problems.
The present invention discloses a kind of method that is used for a playing device played data, it comprises plays the data that are installed in the storage medium of this playing device with an acceleration.
The present invention discloses a kind of playing device, it comprises a storage module, be used for storing the data that desire is play, one load module, be used for importing the controlled variable of the broadcast acceleration that is stored in these storage module data that desire plays, and a control module, be connected in this storage module and this load module, be used for the controlled variable of the broadcast acceleration that receives according to this load module, play data in this storage module with this broadcast acceleration.
Description of drawings
Fig. 1 is known audio-visual broadcasting speed control and time relation figure.
Fig. 2 is the block schematic diagram of playing device of the present invention.
Fig. 3 is the process flow diagram of first embodiment of the invention playing device played data.
Fig. 4 is the process flow diagram of second embodiment of the invention playing device played data.
Fig. 5 is audio-visual broadcasting speed control of the present invention and time relation figure.
The reference numeral explanation
10 playing devices, 12 receiver modules
14 storage modules, 16 load modules
18 acceleration switches, 20 control modules
22 present device
Embodiment
See also Fig. 2, Fig. 2 is the block schematic diagram of playing device 10 of the present invention.Playing device 10 includes a receiver module 12, is installed on the housing, is used for receiving the image signal and the sound signal of outside input.One storage module 14, can be a read-only memory storage, such as DVD drive or VCD CD-ROM drive, or be a flash formula memory storage, the storer of forms such as CF, SD or MMC for example, or be a Winchester disk drive device, device such as Winchester disk drive or Micro driver for example, it is to be used for storing the data that desire is play.One load module 16 is used for importing the controlled variable of playing the broadcast acceleration that is stored in storage module 14 data.
Load module 16 comprises an acceleration switch 18, when acceleration switch 18 is activated, then playing device 10 is play audio-visual with the state acceleration that corresponds to acceleration switch 18 and be activated, and when acceleration switch 18 is released, broadcasting speed constant speed when then playing device 10 is released with acceleration switch 18 is play audio-visual, acceleration switch 18 can be a rocking bar, when this rocking bar is pushed to a first direction, then playing device 10 is play audio-visual with a specific broadcast acceleration, when this rocking bar is pushed to a second direction, then playing device 10 is play audio-visual with a specific broadcast retarded velocity, and the big I of playing acceleration or retarded velocity is directly proportional with the distance that this rocking bar is pushed away initial point, and be released and when rebounding initial point, the broadcasting speed constant speed when then playing device 10 is released with this rocking bar is play audio-visual when this rocking bar; In addition, acceleration switch 18 can be a pressure type switch, for example pressure key or pressure-sensitive ball etc., and this pressure type switch can be designed to quicken pressure type switch or deceleration pressure type switch, when being subjected to big more pressure, this pressure type switch does the time spent, then playing device 10 is audio-visual with bigger broadcast acceleration or retarded velocity broadcast, and when this pressure type switch was released, the broadcasting speed constant speed when then playing device 10 is released with this pressure type switch was play audio-visual; Acceleration switch 18 also can be a key switch, it can be designed to continue to push this key switch as the user in a special time, then play the operation of (play), if continue to push this key switch greater than a special time, then playing device 10 is done audio-visual broadcast according to the time of pushing with a broadcast acceleration or retarded velocity, can quicken rapidly or slow down rapidly if wish, then prolong the time of pushing this key switch, quicken or deceleration if wish to relax, then shorten the time of pushing this key switch, that is the accumulation of the taking compressing time speed control that is used as quickening or slows down, it is benchmark that the validity of accumulated time is not then interrupted the some time with continuous push switch; Acceleration switch 18 or can be a two-way switch (two-wayswitch), when this two-way switch is depressed into first end, then playing device 10 is with the audio-visual broadcast of a specific broadcast acceleration, when this two-way switch is depressed into second end, then playing device 10 is with the audio-visual broadcast of a specific broadcast retarded velocity, and when this two-way switch is released, then the broadcast uniform velocity of playing device 10 when being released play video-audio data, and acceleration switch 18 can be any type of speed adjustment mechanism, and not only is confined to the above-mentioned mechanism of putting forward.
Playing device 10 also comprises a control module 20, be electrically connected on storage module 14 and load module 16, be used for the playing flow of controls playing device 10, the controlled variable of the broadcast acceleration that it can be received according to load module 16, play the data that are stored in storage module 14 with this acceleration, and one present device 22, be used for presenting playing device 10 and play audio-visual speed state, and present the speed state that device 22 can voice mode (audio feedback) presents playing device 10 playing videos, for example if play acceleration or slow down fast more, then present device 22 and can send big more sound, or present the speed state of playing device 10 playing videos in image mode (visualfeedback), for example a note scale shows present broadcasting speed, or present the speed state of playing device 10 playing videos in FORCE FEEDBACK mode (force feedback), when for example broadcast acceleration or deceleration are fast more, presenting device 22 just can present with big vibration feedback, and increase the storage of consciousness sense organ, reach easy-to-use purpose.
Present device 22 and also can merge use with load module 16, for example if when big more broadcast acceleration of input or retarded velocity, but present the big more resistance of device 22 feedbacks, promptly more need the bigger extrusion power of input can import bigger broadcast acceleration or retarded velocity, and wish to play acceleration or retarded velocity more hour, then can loosen the power input, and resulting FORCE FEEDBACK can diminish thereupon also, so the user just can learn present residing broadcasting speed state by resulting feedback.And speed state mentioned herein can be playing device 10 and is in aero mode or deceleration mode, or the retarded velocity grade of the acceleration levels of playing device 10 playing videos or playing video, or is speed class of playing device 10 playing videos etc.By the feedback that presents device 22 user that gives, can allow the user learn the speed state of being controlled at present easily and naturally.
See also Fig. 3, Fig. 3 is the process flow diagram of first embodiment of the invention playing device 10 played data.The method of playing device 10 played data comprises the following step:
Step 100: utilize load module 16 inputs one predetermined the acceleration or deceleration time;
Step 102: according to this predetermined broadcast acceleration or broadcast retarded velocity of quickening or can drawing playing device 10 played data deceleration time; And
Step 104: distribute the unit interval played data number of variant play time according to this broadcast acceleration or broadcast retarded velocity.
Again above-mentioned steps being done one at this describes in detail, the user can should predeterminedly quicken or deceleration time by load module 16 inputs, the user can should predeterminedly quicken or deceleration time by acceleration switch 18 inputs of pressure type switch form for instance, promptly be subjected to big more pressure and do the time spent, then short more predetermined acceleration or deceleration time are imported in representative, when for example input pressure is less a certain grade, then a certain specific broadcasting speed is arrived in after-acceleration in 2 seconds at the fixed time, and when if input pressure is bigger a certain grade, then a certain specific broadcasting speed is arrived in after-acceleration in 1 second at the fixed time, as for this predetermined quicken or load module that correspond to deceleration time 16 given input and the setting of this specific broadcasting speed, then visual actual needs is set up on their own by deviser or user.And obtain this predetermined acceleration or after deceleration time, just can utilize the kinematics formula to calculate corresponding broadcast acceleration or retarded velocity.For instance, if the initial broadcasting speed of playing device 10 existing positive played data is to play Sa picture p.s., and the target broadcasting speed of desiring to reach is to play Sb picture p.s., then play acceleration or retarded velocity just for after Sb deducts Sa, again divided by predetermined acceleration or the deceleration time imported, and with broadcast acceleration that this was drawn or retarded velocity be that first-class adds or etc. retarded velocity, that is to say, when input should predeterminedly be quickened or rise deceleration time, in this predetermined acceleration or in the middle of this period of deceleration time, playing device 10 is to play acceleration or the first-class retarded velocity played data of playing with first-class, until being played to the broadcasting speed that promptly keeps this to fix after the target broadcasting speed is play Sb picture p.s..And next just can continue to utilize kinematic formula to distribute the unit interval played data number of variant play time according to this broadcast acceleration or broadcast retarded velocity, for instance if Sa=30, Sb=60, the predetermined acceleration time was 3 seconds, and then playing acceleration is (60-30)/3=10frame/s 2So in playing in the accelerating period, the broadcasting speed in first second is 30+10=40frame/s, the broadcasting speed in second second is 30+10*2=50frame/s, the broadcasting speed in the 3rd second then is 30+10*3=60frame/s, and playing device 10 is just with 60frame/s constant speed played data afterwards.
See also Fig. 4, Fig. 4 is the process flow diagram of second embodiment of the invention playing device 10 played data.The method of playing device 10 played data comprises the following step:
Step 106: utilize load module 16 inputs one to play acceleration or and play retarded velocity;
Step 108: play acceleration according to this and maybe should play retarded velocity, can draw the reproduction time that playing device 10 is accelerated or decelerated to a specific broadcasting speed; And
Step 110: distribute the unit interval played data number of variant play time according to this broadcast acceleration or broadcast retarded velocity.
Again above-mentioned steps being done one at this describes in detail, the user can maybe should play retarded velocity by this broadcast acceleration of load module 16 inputs, the user can maybe should play retarded velocity by this broadcast acceleration of acceleration switch 18 inputs of pressure type switch form for instance, promptly be subjected to big more pressure and do the time spent, then big more broadcast acceleration is imported in representative, when for example input pressure is less a certain grade, then can accelerate to a certain specific broadcasting speed in the long time, and when if input pressure is bigger a certain grade, then can accelerate to a certain specific broadcasting speed in the short time, as for this broadcast acceleration maybe this broadcast load module that retarded velocity corresponds to 16 given input and the setting of this specific broadcasting speed, then visual actual needs is set up on their own by deviser or user.And import this broadcast acceleration maybe after this broadcast retarded velocity, just can utilize the kinematics formula to calculate the corresponding reproduction time that is accelerated or decelerated to this specific broadcasting speed, for instance if the existing positive played data of playing device 10 to open the beginning broadcasting speed be to play Sa picture p.s., and the target broadcasting speed of desiring to reach is to play Sb picture p.s., then reproduction time is just for after Sb deducts Sa, again divided by broadcast acceleration of being imported or broadcast retarded velocity, and playing device 10 is to play acceleration or the first-class retarded velocity played data of playing with first-class in this reproduction time, until being played to the broadcasting speed that promptly keeps this to fix after the target broadcasting speed is play Sb picture p.s..And next just can continue to utilize kinematic formula according to this broadcast acceleration or play retarded velocity and reproduction time distributes the unit interval played data number of variant play time, for instance if Sa=30, Sb=60, the predetermined acceleration time was 3 seconds, and then playing acceleration is (60-30)/3=10frame/s 2So playing in the accelerating period, the broadcasting speed in first second is 30+10=40frame/s, the broadcasting speed in second second is 30+10*2=50frame/s, the broadcasting speed in the 3rd second then is 30+10*3=60frame/s, playing device 10 is just with 60frame/s constant speed played data afterwards, and this directly controls playing speed and method of controls playing acceleration, can make that playing device 10 played data speed are that smooth-going ground slowly up quickens or down deceleration, play irregularity and discontinuous sensation and can not allow the user cause.
And because the unit of played data is with picture (video frame), or sample (audio sample) calculates, so can utilize integer arithmetic to handle at the unit interval of the variant play time of dispensed played data number, and need not use the processing or the memory span of real arithmetic, so can simplify the processing computing of played data, and can fully save the system resource of playing device 10, and then reduce the time of system responses input.
If distribute the unit interval played data number of variant play time according to this broadcasts acceleration or broadcast retarded velocity and reproduction time, might played data fully broadcast such as foundation quicken or wait the broadcast deceleration to be dispensed to variant play time, for instance if Sa=30, Sb=62, the predetermined acceleration time was 3 seconds, and then playing acceleration is (62-30)/3=10.67frame/s 2, so the time also visual broadcast acceleration be 10frame/s 2Therefore playing in the accelerating period, the broadcasting speed in first second is 30+10=40frame/s, the broadcasting speed in second second is 30+10*2=50frame/s, the broadcasting speed in the 3rd second then is 30+10*3=60frame/s, to be dispensed on the variant play time except that the frame numbers of not advancing again afterwards, for example the broadcasting speed in first second and second second still is 40frame/s, 50frame/s, but the broadcasting speed in the 3rd second then is adjusted into 62frame/s, or the broadcasting speed in first second still is 40frame/s, but the broadcasting speed in second second is adjusted into 51frame/s, and the broadcasting speed in the 3rd second is adjusted into 62frame/s.Therefore the broadcast acceleration of the present invention or the performance of playing retarded velocity can be not limited to uniform acceleration or etc. the performance of retarded velocity, the method for the broadcasting speed of the variant play time of various distribution all belongs to category of the present invention.
See also Fig. 5, Fig. 5 is audio-visual broadcasting speed control of the present invention and time relation figure.As seen from Figure 5, at time point 0 during to time point t1, broadcasting speed is play by the static diploidy number that accelerates to smooth-goingly, and at time point t1 during to time point t2, broadcasting speed accelerates to quadruple by diploidy number smooth-goingly and plays, and compared to the known audio-visual broadcasting speed control mode of Fig. 1, the present invention is when playing video-audio data, the speed of played data is that smooth-going ground slowly up quickens or down deceleration, plays irregularity and discontinuous sensation so can not allow the user cause.
And the playing device 10 that is applied to the inventive method can be the device with playing flow control interface, and method of the present invention can be applicable to for example playing video function of videocorder, or the speed when being used for carrying out the picture scene and searching draws, the broadcast recording function of Video Camera, the continuous automatically function of taking pictures of playing in the digital camera, computing machine bulletin automatic playing function, the function etc. that plays sound of sound-track engraving apparatus, can use to playing continuous medium information (continuous media), video signal for example, sound, or data such as animation, all belong to the category that the present invention uses.
Compared to known playing flow control, characteristics of the present invention are a kind of direct controls playing acceleration is provided but not the played data mode of direct controls playing speed, therefore when user's practical operation playing flow is controlled, just visual actual conditions are done a flexible adjustment for this playing flow, but not only carry out the control of acceleration and deceleration as known technology with fixedly multiple or preset multiple, and when played data, the speed of played data then is that smooth-going ground slowly up quickens or down deceleration, do not play irregularity and discontinuous sensation so can not allow the user cause, arrange in pairs or groups again in addition suitable load module 16 with present device 22, then can allow the user control the speed state that desire plays easily and naturally and learn the speed state of being controlled at present, and reach the requirement that playing flow control is controlled in hommization.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.

Claims (15)

1. method in a playing device played data, it comprises:
The data that are installed on the storage medium of this playing device are play acceleration with one to be play.
2. the method for claim 1, wherein this broadcast acceleration be a non-zero on the occasion of or negative value.
3. the method for claim 1, it also comprises according to an acceleration time length, initial broadcasting speed and target broadcasting speed and calculates this broadcast acceleration.
4. method as claimed in claim 3, wherein this broadcast acceleration is a uniform acceleration.
5. playing device, it comprises:
One storage module is used for storing the data that desire is play;
One load module is used for importing the controlled variable of the broadcast acceleration that is stored in these storage module data that desire plays; And
One control module is electrically connected on this storage module and this load module, is used for the controlled variable of the broadcast acceleration that receives according to this load module, plays data in this storage module with this broadcast acceleration.
6. device as claimed in claim 5, wherein this load module comprises an acceleration switch, when this acceleration switch is activated, the state acceleration playing video that is activated to correspond to this acceleration switch of this playing device then, and when this acceleration switch is released, the broadcasting speed constant speed playing video when then this playing device is released with this acceleration switch.
7. device as claimed in claim 6, wherein this acceleration switch is a rocking bar.
8. device as claimed in claim 6, wherein this acceleration switch is a pressure type switch.
9. device as claimed in claim 5, wherein this playing device comprises one and presents device, is used for presenting the speed state of this playing device played data.
10. device as claimed in claim 9, wherein this presents device presents this playing device played data with voice mode speed state.
11. device as claimed in claim 9, wherein this presents device presents this playing device played data with visual manner speed state.
12. device as claimed in claim 9, wherein this presents device presents this playing device played data in the FORCE FEEDBACK mode speed state.
13. device as claimed in claim 5, wherein this broadcast acceleration be a non-zero on the occasion of or negative value.
14. device as claimed in claim 5, wherein this controlled variable is an acceleration time.
15. device as claimed in claim 5, wherein this broadcast acceleration is a uniform acceleration.
CNB2003101165889A 2003-11-18 2003-11-18 Method of controlling playing procedure Expired - Fee Related CN100367389C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101753977B (en) * 2009-12-31 2012-10-03 中兴通讯股份有限公司 Method and device for adjusting network digital video play speed
CN102842319A (en) * 2011-06-24 2012-12-26 深圳深讯和科技有限公司 Control method and device of music playing
CN101770795B (en) * 2009-01-05 2013-09-04 联想(北京)有限公司 Computing device and video playing control method
CN109743628A (en) * 2019-01-10 2019-05-10 四川长虹电器股份有限公司 A kind of method that IP set-top box promotes video on live smoothness

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003157613A (en) * 2001-11-19 2003-05-30 Shinano Kenshi Co Ltd Optical disk drive capable of capturing audio data
JP4384387B2 (en) * 2002-02-20 2009-12-16 ティアック株式会社 Optical disk device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101770795B (en) * 2009-01-05 2013-09-04 联想(北京)有限公司 Computing device and video playing control method
CN101753977B (en) * 2009-12-31 2012-10-03 中兴通讯股份有限公司 Method and device for adjusting network digital video play speed
CN102842319A (en) * 2011-06-24 2012-12-26 深圳深讯和科技有限公司 Control method and device of music playing
CN102842319B (en) * 2011-06-24 2015-04-08 深圳深讯和科技有限公司 Control method and device of music playing
CN109743628A (en) * 2019-01-10 2019-05-10 四川长虹电器股份有限公司 A kind of method that IP set-top box promotes video on live smoothness

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