TWI487376B - Data playback device and operating method for data playback - Google Patents

Description

Data playback device and data playback control method

The present invention relates to a playback device, and more particularly to a data playback device and a data playback control method.

Today's information-rich generations store a wide variety of data files for users to live and work for. Common data play interfaces such as flat maps or multimedia play interfaces.

Taking the multimedia playing interface as an example, the multimedia playing interface often controls the playing progress of the multimedia video and the playing time range of the desired moving by the track of the player. Common players such as button or straight. The user moves the control button on the track of the player to adjust the playback time of the multimedia video.

However, the track of the player is a fixed length, and the track of the player needs to include all the playing time points of the multimedia audio and video, so if the multimedia video played is a long-term file or stream, then the track of the player The playback time is so dense that the user often cannot move accurately The control button adjusts the playback progress of the multimedia video to a suitable range, and the adjustment range is insufficient or exceeds the expected progress.

Alternatively, the player's hopping function cannot be adjusted to the playback time point to be viewed. The reason is that the hops are the same time, such as a few minutes, and if the multimedia video is a long time, such as several hours, Or when the multimedia video in a large storage space (such as cloud network space or disk array) can be a file or stream for several months, the player's hop function is used to view the time when you want to watch it. It is inconvenient to skip multiple times.

Therefore, how to efficiently use the player to adjust the playback progress of the multimedia video or to operate the playback time range is the subject of the inventor of the present invention and those skilled in the related art.

In view of this, the present invention provides a data playback device, including: a display unit, an input unit, a storage unit, and a processing unit. The input unit generates a control signal according to an external operation. The storage unit stores sequence data and applications. The processing unit is electrically connected to the display unit and the input unit. The processing unit executes the application program and displays the playback control interface on the display unit, and operates the playback control interface according to the control signal generated by the input unit.

The play control interface includes: a first closed track, a second closed track, and a rotary button. Wherein the second closed track surrounds the periphery of the first closed track. The rotary button is on the first closed track or the second closed track according to the control signal Moving on the track, and the processing unit generates a data displacement amount according to the rotation direction and the number of rotations of the rotary knob on the first closed track or the second closed track, and adjusts the play point of the sequence data according to the data displacement amount, wherein the first closed track corresponds to The amount of data displacement is different from the amount of data corresponding to the second closed orbit.

In an embodiment, a data playback control method is applicable to a data playback device. The data playback device includes a display unit and an input unit. The control method includes: displaying a playback control interface on the display unit, wherein the playback control interface includes a plurality of closed tracks And detecting, by the input unit, an input of the first closed track responsive to the closed tracks, and then moving the rotary button to the first closed track according to the input, and converting the rotation of the rotary button on the first closed track The direction and the number of rotations are the data displacement. The data displacement corresponding to the first closed orbit is different from the data displacement corresponding to other closed orbits. Finally, the playback point of the sequence data is adjusted according to the data displacement.

The embodiment of the present invention can use different closed time tracks of the play control interface to set different time units, so that the user needs to skip the data of the search sequence data (such as the playback progress of the video file or the operation to be moved). During the playback time range, the playback point of the sequence data can be quickly and accurately adjusted to the desired playback content by moving the closed track via the rotary button.

The detailed features and advantages of the present invention are described in detail below in the embodiments of the present invention. The related objects and advantages of the present invention can be readily understood by those skilled in the art.

100‧‧‧data playback device

101‧‧‧ display unit

102‧‧‧Input unit

103‧‧‧storage unit

104‧‧‧Processing unit

10‧‧‧Play control interface

11‧‧‧First closed orbit

111‧‧‧ first scale

112‧‧‧First time grid

12‧‧‧Second closed orbit

121‧‧‧second scale

122‧‧‧second time grid

13‧‧‧ Third closed orbit

131‧‧‧ third scale

132‧‧‧ third time grid

14‧‧‧ Rotary button

15‧‧‧Play area

16‧‧‧Play point field

17‧‧‧File capture field

18‧‧‧Setting button

S‧‧‧ control signal

S100‧‧‧Display playback control interface on the display unit, wherein The playback control interface includes a plurality of closed tracks

S110‧‧ Detecting, by the input unit, an input responsive to one of the first closed tracks of the closed tracks

S120‧‧‧ Move the rotary knob on the first closed orbit according to the input

The rotation direction and the number of rotations of the S130‧‧‧ conversion rotary knob on the first closed orbit are data displacement, and the data displacement corresponding to the first closed orbit is different from the data displacement corresponding to other closed orbits.

S140‧‧‧Adjust the play point of the sequence data according to the data displacement

1 is a block diagram showing a data playback apparatus according to an embodiment of the present invention.

Fig. 2 is a view showing a playback control interface of the material playback apparatus of the first embodiment of the present invention.

Figure 3 is a schematic diagram of a playback control interface of a data playback device in accordance with a second embodiment of the present invention.

4 is a flow chart of a data playback control method according to an embodiment of the present invention.

1 is a block diagram showing a data playback apparatus according to an embodiment of the present invention.

Referring to FIG. 1 , the data playback device 100 includes a display unit 101 , an input unit 102 , a storage unit 103 , and a processing unit 104 . The processing unit 104 is electrically connected to the display unit 101 and the input unit 102. The input unit 102 generates a control signal S according to an external operation. The storage unit 103 stores sequence data and an application. The processing unit 104 executes the application and displays the playback control interface 10 on the display unit 101, and operates the playback control interface 10 according to the control signal S generated by the input unit 102. Here, data playback The device 100 can be substantially a security monitoring system for playing back the video recorded by the surveillance camera. In some embodiments, the material playback device 100 can be a personal computer, a mobile phone, a tablet, or the like.

In some implementations, the display unit 101 can be a screen, such as a liquid crystal screen, a cathode ray tube (CRT) screen. The input unit 102 can be a mouse, and the control signal S can be a cursor displacement signal or/and a button click signal generated by the user operating the mouse.

In some implementations, the display unit 101 and the input unit 102 can be integrated into a touch screen. The play control interface 10 can be implemented by a user interface (UI) of the touch panel, and the control signal S is detected by the touch screen when the user touches the touch screen with an object (such as a finger). The detected touch position signal.

In some implementations, display unit 101 displays a two-dimensional picture. The processing unit 104 can carry the action of the signal (such as the mouse cursor) of the input unit 102 on the plane coordinate position (ie, the X coordinate and the Y coordinate) of the display unit 101 according to the control signal S. For example, the click position or/and the drag path of the cursor of the mouse on the playback control interface 10 can be executed accordingly, and will be described in detail later.

Here, the processing unit 104 may be an arithmetic unit such as a central processing unit (CPU) or an embedded controller.

In one embodiment, the storage unit 103 can be a non-transitory storage medium such as a hard disk, a disk array, a compact disk, or a memory card. The processing unit 104 is electrically connected to the storage unit 103 to load the application stored in the storage unit 103 and the sequence data stored in the storage unit 103. Access.

In another implementation, the storage unit 103 can include the aforementioned non-transitory storage medium and a remote storage space. The non-temporary storage medium is used to store applications for loading by the processing unit 104. The remote storage space can be a storage medium of a video server or a network camera. The video server can be connected to the processing unit 104 via wired or/and wireless communication (eg, a wired network, a wireless network). The video server can be a local file server or a cloud server.

Fig. 2 is a view showing a playback control interface of the material playback apparatus of the first embodiment of the present invention. Referring to FIG. 1 and FIG. 2, the processing unit 104 executes the application and displays the control interface 10 on the display unit 101, and the processing unit 104 reads the sequence data of the storage unit 103 and decodes it to be displayed on the control interface 10. Play area 15 in.

In an embodiment, the number of closed rails may exceed two. As shown in FIG. 3, three closed rails are shown, which are a first closed rail 11, a second closed rail 12, and a third closed rail 13, respectively. However, the present invention is not limited thereto, and the number of closed tracks of the playback control interface 10 can be adjusted according to actual conditions. The purpose of these closed tracks is that when the play point of the play sequence data is adjusted, the user can select one of the units according to different levels to facilitate operation.

As shown in FIG. 2, the playback control interface 10 can have a plurality of closed tracks. In this embodiment, the closed rails are the first closed rail 11 and the second closed rail 12. In this embodiment, the sequence data is an audio-visual file (such as an audio file or a video file), and the first closed track 11 and the first The unit corresponding to the two closed tracks 12 is a time unit.

The second closed track 12 is surrounded by the outer periphery of the first closed track 11. The second closed track 12 represents a larger time unit than the first closed track 11, but the invention is not limited thereto. The second closed track 12 may represent a smaller time unit than the first closed track 11 in some embodiments.

For example, the first closed track 11 and the second closed track 12 represent different time units. That is, when the rotary knob 14 moves on the first closed rail 11 and the second closed rail 12 in the same rotational direction and the number of revolutions, the data displacement corresponding to the first closed rail 11 and the second closed rail 12 different. For example, the first closed track 11 may represent an hour unit, and the second closed track 12 may represent a minute unit, but embodiments of the present invention are not limited thereto.

As shown in FIG. 2, the playback control interface 10 includes a first closed track 11, a second closed track 12, and a rotary button 14. Therein, the second closed track 12 surrounds the periphery of the first closed track 11. When the user operates the input unit 102 to cause the input unit 102 to generate the control signal S to the processing unit 104, the processing unit 104 forms an operation on the playback control interface 10 according to the control signal S. For example, when the user operates the mouse to cause the cursor to be on the first closed track 11, the processing unit 104 displays the rotary knob 14 on the first closed track 11. When the user operates the mouse to drag the rotary knob 14, the rotary knob 14 can be moved on the first closed rail 11 according to the cursor position.

At this time, the processing unit 104 can generate a data displacement amount according to the rotation direction and the number of rotations of the rotary knob 14 on the first closed track 11, and adjust the playback time point of the audio-visual file according to the data displacement amount. For example: when the first When the closed track 11 represents the hour unit, if the rotary button 14 rotates clockwise, the jump point of the audio and video file can be jumped forward (ie, fast forward); otherwise, if it is rotated counterclockwise, the video file can be jumped backward (ie, reversed). The point of playback. Moreover, the magnitude of the jump can be changed with the displacement amount of the rotary knob 14, thereby adjusting the playback time point of the audiovisual file.

In an embodiment, the processing unit 104 turns on the video file of the storage unit 103 according to the control signal S generated by the input unit 102, so that the display unit 101 plays the control interface 10 and displays the playing content of the video file in the playing area 15. Among them, the starting point of the video file can be 0 minutes and 0 seconds. When the user wants to adjust the playing content to the time point to be browsed, the closed track displayed on the touch screen can be clicked. At this time, a rotating button 14 is displayed on the closed track (such as the closed track 11) that is clicked. . When the user continues to touch along the first closed track 11, the processing unit 104 can calculate the data displacement amount according to the input, and make the playback content forward or backward to adjust the data displacement amount.

Fig. 4 is a flow chart showing a method for controlling video and audio playback according to an embodiment of the present invention. Herein, the user operates the play control interface 10 as an application embodiment, and the operation of the data playback device 100 can be easily understood. One turn of the first closed rail 11 mentioned in this embodiment represents 12 hours.

Referring to FIG. 1 , FIG. 2 and FIG. 4 , firstly, the user operates the input unit 102 to load the processing unit 104 into an application stored in the storage unit 103 . The application has a playback control interface 10 and is displayed on the display unit. 101. As shown in Fig. 2, the playback control interface 10 has a plurality of closed tracks (step S100).

Then, the user can operate the input unit 102 to move the rotary knob 14 of the playback control interface 10 on the first closed track 11. At this time, the data playback device 100 detects an input of the first closed track responsive to the closed tracks by the input unit 102 (step S110), and generates the displacement information (such as the plane coordinates of the display unit 101). Controlling the signal S of the position change path to the processing unit 104, so that the processing unit 104 reacts the displacement information to the display unit 101 according to the input (ie, the control signal S) and moves the rotary knob 14 on the first closed track 11 (step S120).

Here, if the track corresponding to the displacement information is rotated clockwise by a quarter turn on the first closed track 11, the processing unit 104 converts the rotation direction of the rotary button 14 on the first closed track 11 (ie, clockwise). And the number of rotation turns (that is, a quarter turn) is the data displacement amount (step S130), that is, 3 hours. The processing unit 104 adjusts the playing time point of the video file according to the data displacement amount (3 hours) (step S140), so that the user can watch the playing content of the video file to jump forward for 3 hours. Accordingly, the user can simply operate the playback control interface 10 as needed to quickly jump to the video file playback position to be viewed. In particular, when applied to the playback of a videotape, the image at the time of the event can be quickly found, which solves the problem that it is difficult to control the jump position due to the length of the surveillance tape.

Figure 3 is a schematic diagram of a playback control interface of a data playback device in accordance with a second embodiment of the present invention. The second embodiment is substantially the same as the first embodiment. Compared with the first embodiment, the play control interface 10 of the embodiment may further have a third closed track 13, a play point field 16 for displaying a play point, a file capture field 17 and a set button 18. Here, the first The closed track 11 corresponds to the first unit via the first scale, and the second closed track 12 corresponds to the second unit via the second scale and the third closed track 13 corresponds to the third unit via the third scale. In this embodiment, the sequence data is an audio-visual file, and the units of the first closed track 11, the second closed track 12, and the third closed track 13 are different time units, and each corresponds to the first time unit and the second. Time unit and third time unit.

Referring to FIG. 3, the third closed rail 13 surrounds the periphery of the second closed rail 12. The first closed track 11 has a plurality of first scales 111. The first scale 111 divides the first closed track 11 into a plurality of first time slots 112, and the first time frame 112 represents a first time unit (eg, five minutes). Similarly, the second closed track 12 has a plurality of second scales 121, and the second scale 121 divides the second closed track 12 into a plurality of second time frames 122 representing the second time unit. The third closed track 13 has a plurality of third scales 131, and the third scale 131 divides the third closed track 13 into a plurality of third time frames 132 representing third time units.

Here, when the rotary knob 14 is displaced on the first closed track 11, the processing unit 104 accumulates the first time unit as the data displacement amount according to the number of the first scale 111 that the rotary button 14 passes and adjusts the play time point of the video file. When the rotary button 14 is displaced on the second closed track 12, the processing unit 104 accumulates the second time unit as the data displacement amount according to the number of the second scale 121 passed by the rotary button 14 and adjusts the playback time point of the video file; the rotary button 14 When the displacement is on the third closed track 13, the processing unit 104 accumulates the third time unit as the data displacement amount according to the number of the third scales 131 that the rotary button 14 passes, and adjusts the playback time point of the video file.

For example, one turn of the first closed track 11 can represent one hour, and the first closed track 11 has twelve first scales 111, then a first time grid 112 represents five minutes; the second closed track 12 One circle may represent one day, and the second closed track 12 has twelve second scales 121, then a second time frame 122 represents two hours; one circle of the third closed track 13 may represent thirty days, and the third closed The track 13 has six third scales 131, and a third time grid 132 represents five days. When the user wants to watch the video files after 30 days, three hours and fifty minutes, the following operations can be performed: (1) moving the rotary button 14 in a clockwise direction on the third closed track 13 and then The rotary knob 14 is moved in the clockwise direction on the second closed track 12 in the second time frame 122, and then the rotary knob 14 is moved in the counterclockwise direction on the first closed track 11 in the second time frame 112. (2) moving the rotary knob 14 one turn in the clockwise direction on the third closed track 13, and moving the rotary knob 14 in the clockwise direction on the second closed track 12 in the second time frame 122, and then on the second A rotating track 14 is moved in a clockwise direction on a closed track 11 in a first time grid 112. (3) Moving the rotary knob 14 one turn in the clockwise direction on the third closed rail 13, and moving the rotary knob 14 in the clockwise direction on the first closed rail 11 in the first time grid 112 three times and ten grids.

It should be understood from the above description that the user can flexibly select closed tracks (such as the first closed track 11 to the third closed track 13) to quickly jump to the video playback time point of the next time length. Moreover, the rotary knob 14 can be continuously rotated on the closed track to accumulate the data displacement amount, so as to adjust the playback time of the audio-visual file (up to the end point of the audio-visual file), Or it can be continuously counterclockwise looped on the closed track to adjust the playback time of the video file to reverse (up to the starting point of the video file).

Furthermore, since the closed track can be cycled, an embodiment of the present invention can also be provided with only a single closed track (not shown), and the rotary button 14 is continuously rotated on the single closed track to accumulate data displacement. The amount, and thus the playback time point of the video file is adjusted; alternatively, the play control interface 10 of the present invention can play the point field 16, the file capture field 17 or/and the set key 18 with the closed track application.

In an embodiment, the video file may be a single file movie. In another embodiment, the video file may be a group of movies consisting of a plurality of sequential files having a sequence. That is to say, the video file referred to in the embodiment of the present invention may be substantially a file or a plurality of files. When the video file is implemented in a plurality of files, the video file can store the video start date, the video start time, the video end date, and the video end time, so the application can separately map the files to one. Play the corresponding time zone on the timeline. Therefore, the user can play the playback control interface 10 as if the single file was selected for playback, and the content that is played substantially is dispersed in each file. Here, the video file may be one or a plurality of multimedia video streams. In some embodiments, the audiovisual file may be digital audiovisual material or/and analog video material.

In some implementations, as shown in FIG. 3, the playback control interface 10 can also have a playpoint field 16. The play point field 16 can display the information of the current play point of the sequence data, such as the current play time point or the jump time point of the video file, and the jump time point is based on the current play time point and the user. The amount of data displacement generated by the operation of the rotary knob 14 is changed. That is to say, the jump time point is the accumulation of the current play time point and the data shift amount.

Thereby, the user can know according to the play point field 16 whether the play point of the sequence data has been moved to the position to be browsed (such as the play time point of the video file). Here, the play point field 16 is located on the play area 15, but embodiments of the present invention are not limited thereto. For example, the play point field 16 can be moved following the spin button 14, or at other locations on the playback control interface 10.

In an embodiment, the storage unit 103 can record a particular indication in the sequence data. Taking the video file as an example, the storage unit 103 can store the time point (abbreviated as the abnormal time point) in the abnormality event detected by the image recognition technology. When the difference between the point when the processing unit 104 compares the abnormal time and the point of the jump is smaller than the length of time represented by the closed track, the processing unit 104 marks the abnormal time point on the corresponding closed track according to the time when the abnormal event occurs, so that the use It is easy to choose when to watch the time when the abnormal event occurs. Thereby, the user can also view the closed track representing the smaller time unit by dragging the rotary button 14 to the closed track representing the larger time unit (such as the second closed track 12 representing the day) (eg, representing an hour) Whether there is an abnormal event on a closed track 11), according to whether there is an abnormal event in the video file.

In some implementations, as shown in FIG. 3, the play control interface 10 further has a file capture field 17 and can input a path of the pre-recorded file in the file capture field 17 via the input unit 102, where When the play point of the data is located at the end of the sequence data file, the processing unit 104 retrieves the pre-recorded file according to the path of the file capture field 17 and uses the pre-broadcast file. Continue to play.

In some embodiments, as shown in FIG. 3, the playback control interface 10 can also have a set button 18 that is located in an inner region of the first closed track 11. That is, the first closed rail 11 surrounds the set key 18. The update field (not shown) can be displayed by clicking the setting button 18, and the update field is used to fill in the units in which each closed track is rotated by the rotary button 14 (in the case of time units, such as minutes, hours, days or Months, etc., and the units represented by one circle of each closed track (such as one hour, three days, etc.) are set by the processing unit 104 according to the unit of the selected update field. In other words, the data corresponding to the first scale 111, the second scale 121, and the third scale 131 can be reset by the user filling in the first unit, the second unit, and the third unit to be set in the update field. The amount of displacement.

In an embodiment, the set key 18 can encompass an inner region of the first closed track 11.

In some embodiments, when the position of the rotary knob 14 to the set button 18 is dragged (ie, when the rotary button 14 is dragged away from the moved closed track), the processing unit 104 resets the rotary knob 14 on each closed track. The amount of data generated is such that the playback point of the sequence data is maintained at the same playback point as before the rotary knob 14 was moved on the closed track.

In some implementations, when the plane coordinate position carried by the control signal S is outside the playback control interface 10, the processing unit 104 executes an application, a subroutine or/and its additional components, etc., and hides the playback control interface 10 For example, the playback control interface 10 is made transparent. The processing unit 104 can partially hide the play control interface 10 (ie, only the spin button is retained). 14); or, enable the hidden mode of minimization to completely hide the playback control interface 10.

Moreover, when the user operates the input unit 102 to click the button of the display playback control interface 10, or the plane coordinate position carried by the control signal S is located in the playback control interface 10, the processing unit 104 displays the playback control interface 10 on the display unit 101. .

In some implementations, when the plane coordinate position carried by the control signal S is located on the setting button 18, the processing unit 104 can display the information of the playing point of the sequence data (such as the playing time point of the audio and video file) on the display unit. 101. The display position of the information of the play point can be located around the setting button 18 or the rotary button 14. However, the present invention is not limited thereto, and the display position of the information of the play point can be adjusted according to the implementation.

The above is an example of the sequence data as an audio-visual file, indicating that a specific position in the desired sequence data can be quickly jumped by operating one or more closed tracks. It will be further explained later that this concept can also be applied to other sequence materials.

In an embodiment, the sequence data can be map data. The closed track can be applied to the navigation software for the user to operate while browsing the map. Here, the unit of the closed track may be a unit of length or/and a zoom level. Taking the length unit as an example, different closed tracks can be set to different length units (such as kilometers, meters, centimeters, or 10 ^N cm, where N is an integer). The play point of the sequence data can be changed according to the user operating the rotary button. That is to say, the map displayed on the play area 15 can be displaced in the horizontal or/and vertical direction by the displacement of the rotary knob 14 on the closed track; or the map can be zoomed in (out).

In an embodiment, the sequence data may be a travel path data generated by the navigation software after path planning (including a path location from the start point to the end point), and the user can quickly find the closed track by operating different length units of different magnitudes. A specific location between this travel path. In addition, the aforementioned indications can be displayed on the closed track to display information about points of interest (such as sightseeing spots, landmarks, gas stations or parking lots) between the travel paths. Moreover, the play point field 16 can display the information of the current play point, such as the estimated latitude and longitude of the destination or the location of the user (which can be the information provided when the rescue is needed), the road condition, and the like.

In an embodiment, the closed track is applied to the management community building, the sequence data may be the data of each house, and the first closed track may be a horizontal (X-axis) housing, and the second closed track may be a vertical (Y-axis) In the housing, the third closed track is the floor (Z-axis) household, and the user can easily select the house information (such as space or equipment) that he wants to flow.

Similarly, according to the field of application, the units of such closed orbits may also be other units (such as weight units, temperature units, cosmic coordinate systems, etc.), and will not be enumerated here. Thereby, the user can quickly adjust the play point of the sequence data to conveniently view the related information of the loaded sequence data.

In some implementations, the processing unit 104 can detect the length of time when the spin button 14 is clicked. For example, if the time length of the spin button 14 is less than 3 seconds, the processing unit 104 ignores the control signal generated by the operation. S, to avoid the user's shadowing of the input unit 102 The playback point of the sequence data.

In some embodiments, the aforementioned closed tracks (such as the first closed track 11, the second closed track 12, and the third closed track 13) may be circular tracks, elliptical tracks, polygonal closed tracks, or other specific shapes.

The embodiment of the present invention can use different closed time tracks of the play control interface to set different time units, so that the user needs to skip the search progress of the video file or operate the play time range to be moved. The playback point of the sequence data is quickly and accurately adjusted to the playback time point to be viewed by moving the closed track via the rotary knob 14.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

10‧‧‧Play control interface

11‧‧‧First closed orbit

12‧‧‧Second closed orbit

14‧‧‧ Rotary button

15‧‧‧Play area

Claims (10)

A data playback device comprising: a display unit; an input unit for generating a control signal according to an external operation; a storage unit for storing a sequence of data and an application; and a processing unit electrically connecting the display unit and the An input unit, the processing unit executes the application and displays a play control interface on the display unit, and operates the play control interface according to the control signal generated by the input unit, the play control interface includes: a first closed track; a closed track surrounding the periphery of the first closed track; and a rotary button moving on the first closed track or the second closed track according to the control signal, and the processing unit is in the first closed according to the rotating button a rotation direction and a number of rotations on the track or the second closed track generate a data displacement amount, and adjust a play point of the sequence data according to the data displacement amount, wherein the first closed track corresponds to the data displacement amount and the first The amount of displacement of the data corresponding to the two closed tracks is different. The data playing device of claim 1, wherein the rotating button is clockwise displaced on the first closed track, and the processing unit adjusts the playing point of the video file in a forward direction according to the data displacement amount. The data playback device of claim 1, wherein the rotation button is displaced counterclockwise on the first closed track, and the processing unit is displaced according to the data The amount of playback of the sequence data is reversed. The data playing device of claim 1, wherein the first closed track has a plurality of first scales, each of the first scales corresponds to a first unit, and the processing unit accumulates the number of the rotating buttons The number of scales and converted to the amount of data displacement based on the first unit. The data playback device of claim 4, wherein the playback control interface further comprises: a setting button, the first closed track surrounds the setting button, and an update field is displayed by clicking the setting button, the processing unit is The first unit is updated by filling in the value of the update field. The data playback device of claim 4, wherein the processing unit resets the data displacement amount when the rotary button is dragged away from the first closed track or the second closed track. The data playing device of claim 1, wherein the first closed track or the second closed track is a circular track, an elliptical track or a polygonal closed track. A data playback control method is applicable to a data playback device. The data playback device includes a display unit and an input unit. The control method includes: displaying a playback control interface on the display unit, wherein the playback control interface includes a plurality of Closing a track; detecting, by the input unit, an input responsive to one of the first closed tracks of the closed tracks; moving a rotary knob to the first closed track 1 according to the input; converting the rotary button to the first The direction of rotation on a closed track and The number of rotations is a data displacement amount, wherein the data displacement amount corresponding to the first closed track is different from the data displacement amount corresponding to the other closed tracks; and the play point of the sequence data is adjusted according to the data displacement amount. The data playback control method of claim 8, wherein the step of converting the rotation direction and the number of rotations of the rotary knob on the first closed track to the data displacement amount comprises: accumulating the rotary knob on the first closed track The number of first scales passed over and converted to the data displacement amount according to the first unit of one of the first scales. The data playback control method of claim 8, further comprising: resetting the data displacement amount when the rotary button is dragged away from the first closed track.