JP2009238309A - Contents reproducing device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make fast forwarding and rewinding by a simple operation in a contents reproduction device. <P>SOLUTION: This contents reproduction device includes a memory to store contents data, and a reproducing means to make contents reproduction based on the contents data stored in the memory. Further, it includes a center angle obtaining means to obtain a value corresponding to the angle of the trace of the fingertip moving arcuately on the predetermined operation surface against the center expressed in a number rounded into the predetermined discrete amount (1/4 turn, half turn, one turn), and a displacing means to shift the reproducing position of the reproducing means as much as the displacement amount (00;15, 00:30, 01:00) corresponding to the amount obtained by the center angle obtaining means. The predetermined discrete amount is made as discrete as is specified arbitrarily by the moving fingertip. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a content playback apparatus and content playback method for playing back content based on content data.

  Conventionally, in a portable player that plays music based on music data, fast-forwarding and rewinding can be performed by long-pressing a predetermined key. In the digital turntable, an arbitrary cue point can be set and the performance can be started immediately from the set cue point. Further, when the turntable is rotated by hand, the performance position of the song can be confirmed on the display.

  Further, as a technique related to fast forward and rewind, Patent Document 1 detects how many times a fast forward key or rewind key is operated during playback, and detects how many times these keys are operated continuously, and performs fast forward playback or rewind. A technique is described in which a playback speed is determined and fast forward playback or rewind playback is performed at the determined speed. Further, there is described a technique for performing fast forward reproduction or rewind reproduction at a speed stored in a memory when an operation of a normal fast forward key or a normal rewind key is performed.

JP 2002-42404 A

  However, according to the above-described conventional portable player, when fast-forwarding or rewinding by a predetermined amount, the predetermined position displaced by a predetermined amount is displayed by pressing and holding a predetermined key while confirming the reproduction position displayed on the monitor. It is necessary to release the long press. For this reason, in a scene where fast forward and rewind are frequently used, such as during dance practice, the operation of displacing the playback position by a predetermined amount by fast forward and rewind is very complicated. Such an operation becomes difficult when practicing dance while holding a portable player.

  Further, according to the above-described conventional digital turntable, the setting of the cue point is to set the absolute position, so that the reproduction position cannot be displaced by a predetermined amount. Further, in order to displace the reproduction position by a predetermined amount by turning the turntable by hand, it is necessary to confirm the reproduction position on the display.

  Further, according to the technique for performing fast forward reproduction or rewind reproduction, the speed of fast forward reproduction or rewind reproduction can be easily determined, but the technique does not displace the reproduction position by a predetermined amount.

  An object of the present invention is to make it possible to perform a predetermined amount of fast-forwarding and rewinding by a simple operation in a content reproduction apparatus in view of the problems of the conventional technology.

  In order to achieve this object, a content reproduction apparatus according to a first aspect of the present invention includes a storage unit that stores content data, a reproduction unit that reproduces content based on the content data stored in the storage unit, and a predetermined unit. Center angle correspondence amount acquisition means for acquiring an amount corresponding to the center angle of the movement trajectory of the fingertip moved in an arc shape on the operation surface, as a rounded value of a predetermined discrete amount, and the center angle correspondence amount acquisition means Displacement means for displacing the reproduction position during reproduction by the reproduction means by a displacement amount corresponding to the amount obtained by the above, and the predetermined discrete quantity can be arbitrarily designated by moving the fingertip. It is characterized by being so discrete.

  In a content playback apparatus according to a second invention, in the first invention, the predetermined operation surface is constituted by a rotating body that rotates by the movement of the fingertip, and an amount corresponding to the central angle is equal to that of the rotating body. It is a rotation amount.

  In the content reproduction apparatus according to a third aspect, in the first aspect, the predetermined operation surface is configured by a touch panel that outputs information about each movement position when the arcuate fingertip moves, and the central angle The amount corresponding to is obtained based on information on each movement position output by the touch panel.

  According to a fourth aspect of the present invention, there is provided a content reproduction apparatus comprising: a radius correspondence amount acquisition unit that acquires an amount corresponding to a radius of the arcuate movement trajectory rounded to a predetermined discrete amount; and the radius correspondence amount acquisition unit. Unit setting means for setting the unit of the displacement amount based on the obtained amount, and a predetermined discrete amount for the amount corresponding to the radius can be arbitrarily designated when moving the fingertip It is characterized by being so discrete.

  A content reproduction apparatus according to a fifth aspect of the present invention is obtained by a speed correspondence amount acquisition unit that acquires an amount corresponding to the speed of movement of the fingertip as a rounded value of a predetermined discrete amount, and the speed correspondence amount acquisition unit. Unit setting means for setting a unit of the amount of displacement based on the amount, and a predetermined discrete amount for the amount corresponding to the moving speed can be arbitrarily designated when moving the fingertip. It is characterized by being discrete to a degree.

  In a content playback apparatus according to a sixth aspect of the present invention, in the second aspect, the rotating body is rotated by the movement of the fingertip at the first position and the second position in the rotation axis direction, and the amount of displacement is It has unit change means which changes the unit of the amount of displacement according to whether it relates to the 1st position or the 2nd position.

  According to a seventh aspect of the present invention, there is provided the content reproduction apparatus according to any one of the first to sixth aspects, wherein the first fingertip touched position on the predetermined operation surface for the arcuate movement is used as a reference. There is provided a means for displaying a scale corresponding to the displacement amount so as to be a guide for instructing the displacement amount by the movement of the fingertip.

  According to an eighth aspect of the present invention, there is provided a content reproduction method, a storage step of storing content data, a reproduction step of reproducing content based on the content data stored in the storage means, and an arc shape on a predetermined operation surface. Corresponding to the center angle corresponding amount acquisition step for acquiring the amount corresponding to the center angle of the movement trajectory of the fingertip moved to a predetermined discrete amount, and the amount obtained by the center angle corresponding amount acquiring step And a displacement step for displacing the reproduction position during reproduction by the reproduction step, and the predetermined discrete amount is discrete enough to arbitrarily indicate each discrete amount by movement of the fingertip. It is characterized by being.

  According to the present invention, a predetermined amount of fast-forwarding and rewinding can be performed with a simple operation.

  FIG. 1 is a four-sided view of a digital audio player according to the first embodiment of the present invention. 4A is a left side view, FIG. 4B is a front view, FIG. 3C is a rear view, and FIG. 4D is a bottom view. As shown in the figure, the player has a control area 11 for operating the player, a turn disk 12 for fast-forwarding and rewinding a predetermined amount, a speaker 13 for outputting playback sound, a playback time, and the like. A display 14 for displaying, a battery 15 for supplying power to the player, a protect frame 16 for protecting the player, and a handle 17 for holding the player are provided.

  FIG. 2 is a block diagram showing the configuration of the digital audio player. As shown in the figure, the player controls each part of the player, performs a processing unit 21 that performs necessary information processing, stores a music data, and supplies the processing unit 21 to the processing unit 21. An operation unit 23 for performing an instruction operation, a display unit 24 for the processing unit 21 to display necessary information for a user, an audio output unit 25 for outputting audio based on an audio signal from the processing unit 21, and playback A rotary encoder 26 is provided for the user to instruct the processing unit 21 to perform a predetermined amount of fast-forward or rewind.

  The operation unit 23 includes various operation keys provided in the control area 11 of FIG. 1, and receives various instructions using the operation keys and supplies them to the processing unit 21. The display unit 24 includes the display 14 of FIG. 1, and causes the display 14 to display information based on the music data supplied from the processing unit 21. The audio output unit 25 includes the speaker 13 of FIG. 1 and converts the audio signal supplied from the processing unit 21 into audio and outputs the audio. As shown in FIG. 4, the rotary encoder 26 is connected to the turn disk 12 of FIG. 1, and supplies the processing unit 21 with a number of pulses corresponding to the amount of rotation of the turn disk 12 that the user rotates with the fingertip.

  In response to a user instruction from the operation unit 23, the processing unit 21 reproduces an audio signal based on the music data in the storage unit 22, and outputs a reproduced sound from the audio unit output unit 25. At that time, when the user rotates the turn disk 12 with the fingertip, the fast-forward or rewind time is determined based on the output pulse from the rotary encoder 26 according to the rotation amount, and the playback point is moved forward and backward by that time. And continue playback.

  FIG. 3 shows the relationship between the amount of rotation of the turn disk 12 and the fast forward or rewind time. FIG. 6A shows a state in which the turn disk 12 has not yet been rotated, FIG. 6B shows a state in which the turn is rotated 1/4 in the clockwise direction, and fast-forward 15 seconds, and FIG. FIG. 4D shows a state where the rotation is halved and fast-forwarded for 30 seconds, and FIG. 4D shows a state where the rotation is made clockwise and the forward movement is performed for one minute. Thus, when the turn disk 12 is rotated 1/4, half, or 1 turn clockwise, the player fast-forwards from the current playback position for 15 seconds, 30 seconds, or 1 minute, respectively. When rotated counterclockwise, the player rewinds from the current playback position for 15 seconds, 30 seconds, or 1 minute, respectively, after 1/4, half, or 1 rotation.

  As described above, the rewinding or fast-forwarding amount is changed every 1/4 rotation or half rotation. If the rotation is 1/4 rotation or half rotation, it can be distinguished by an operation with a fingertip. This is because it is possible to instruct 1/4 rotation, half rotation, or 1 rotation. Unlike this, for example, if the rewinding or fast-forwarding amount is changed every 1/8 rotation, it is difficult to distinguish whether the rotation is 1/8 rotation or 2/8 rotation depending on the operation of the fingertip. It becomes difficult to indicate a desired rewind or fast-forward amount.

  In order to realize this, the processing unit 21 performs the turn based on the output of the rotary encoder 26 when the turn disk 12 is operated with a fingertip while playing the music based on the music data in the storage unit 22. The amount of rotation of the disk 12 is acquired by rounding it to a discrete amount such as 1/4 rotation, 1/2 rotation, or 1 rotation. That is, if the rotation amount X indicated by the output of the rotary encoder 26 is 1/8 ≦ X <3/8, the rotation is 1/4 rotation, and if 3/8 ≦ X <6/8, the rotation is half rotation, and 6/8 If it is ≦ X <10/8, it is rounded off to obtain one rotation. Then, fast-forwarding or rewinding is performed by an amount corresponding to the obtained amount. That is, the playback position is changed to the previous or subsequent position for 15 seconds if the obtained discrete amount is 1/4 rotation, 30 seconds for half rotation, or 1 minute for one rotation. Then, playback is continued from the changed playback position. When the turn disc 12 is operated with the fingertip, the fingertip moves in an arc shape, and the amount of rotation of the turn disc 12 that rotates with the fingertip corresponds to the central angle of the movement locus of the fingertip moved in the arc shape. Amount.

  Therefore, when the user grasps the handle 17 and holds the digital audio player and is practicing the dance while playing the music by the player, when the user thinks that the music part just played is not successful, The disk 12 can be rewound and replayed by 15 seconds, 30 seconds, or 1 minute immediately by rotating the disk 12 counterclockwise by 1/4 turn, half turn, or 1 turn.

  According to the present embodiment, the rotation amount of the turn disk 12 is converted into a discrete amount such as ¼ rotation, half rotation, or one rotation, and fast-forwarding or 15 seconds, 30 seconds, or 1 minute depending on the rotation direction. Since rewinding is performed, the user can perform fast forward and rewind for 15 seconds, 30 seconds, or 1 minute by a simple operation. At that time, the discrete amounts such as ¼ rotation, half rotation, and one rotation are discrete to such an extent that each of the discrete amounts ¼ rotation, half rotation, or one rotation can be arbitrarily designated by the movement of the fingertip. Therefore, the user can selectively indicate each discrete amount and specify the corresponding fast forward or rewind amount.

  FIG. 5 shows a touch panel portion in a digital audio player according to the second embodiment of the present invention. In this player, a touch panel 51 is provided instead of the turn disk 12 and the rotary encoder 26 in the first embodiment. A fast-forward or rewind amount can be instructed by moving the fingertip in an arc shape on the touch panel 51. The other points are the same as in the case of the first embodiment, and FIGS. 1 to 3 replace the turn disk 12 and the rotary encoder 26 with the touch panel 51 and are used as they are to show this embodiment. That is, also in this embodiment, by moving the fingertip on the touch panel 51 in an arc shape by ¼ rotation, half rotation, or one rotation, 15 seconds, 30 seconds, or 1 minute, depending on the rotation direction. Fast forward or rewind can be performed.

  In order to realize this, when the touch panel 51 is operated while the music piece is being reproduced based on the music data in the storage unit 22, the processing unit 21 is operated based on the output of the coordinate value from the touch panel 51. The center angle α is calculated for the circular arc shape that is the movement locus of. Further, the obtained central angle α is converted into a ¼ rotation, a half rotation, or one rotation which is a discrete amount similar to the above. For example, if 22.5 degrees ≦ α <67.5 degrees, the rotation is converted to ¼ rotation. Then, according to the obtained 1/4, half, or 1 rotation, fast forward if the movement trajectory of the fingertip is clockwise by 15 seconds, 30 seconds, or 1 minute, respectively, if it is counterclockwise Rewind. Then, playback is continued from the changed playback position.

  The touch panel 51 preferably has an annular shape similar to that of the touch disk 12 of FIG. 1 so that an arc-shaped locus can be easily formed by the movement of the fingertip. Moreover, you may make it acquire discrete amounts, such as 1/4 rotation, a half rotation, or 1 rotation directly, without calculating | requiring the center angle (alpha) by determining whether each predetermined point on the touch panel 51 was touched. For example, in the touch panel 51, a small region is defined by dividing a circular region in which an arc shape is scheduled to be formed by the movement of the fingertip into a predetermined number in the circumferential direction. Based on whether the small areas are sequentially touched, a discrete amount such as ¼ rotation, half rotation, or one rotation may be acquired.

  According to this embodiment, the same effect as the embodiment of FIGS. 1 to 3 can be obtained. Moreover, since there is no movable part, the same effect can be acquired with a simpler configuration.

  FIG. 6 is a diagram showing a touch panel portion in a digital audio player according to the third embodiment of the present invention. This player has the same configuration as that of the second embodiment except that the touch panel 61 is used instead of the touch panel 51. Also in the present embodiment, as in the second embodiment, the amount corresponding to the center angle of the arc shape formed by the movement of the fingertip on the touch panel 61 is converted into a predetermined discrete amount, and the obtained discrete amount Are fast-forwarded or rewound by an amount previously associated with. The difference from the case of the second embodiment is that the unit of rapid traverse or rewind amount changes according to the radius of the arc shape.

  That is, as shown in FIG. 6, when the radius of the arc shape is R1, the unit of the fast forward or rewind amount is “seconds”, “10 seconds” if R2, and “minutes” if R3. On the touch panel 61, “1s” (1 second), “10s” (10 seconds), and “1M” (1 minute) indicating an annular line and corresponding units as a guide for the radii R1, R2, and R3. ) Is drawn. For example, if the discrete amount obtained based on the arc shape formed by the movement of the fingertip is ¼ rotation, the fast forward or rewind amount is 15 seconds if the radius of the arc shape is R1, 150 seconds for R2 and 15 minutes for R3. However, the radii R1, R2, and R3 need to be discrete with sufficient intervals so that they can be distinguished by the fingertips.

  The processing unit 21 obtains an average of the radii of the actually drawn circular arc shape, and rounds off to one of the radii R1, R2, or R3, so that any of the radii R1, R2, and R3 is a fingertip. To determine the above-mentioned unit. In addition, you may make it provide the physical boundary which isolate | separates the cyclic | annular area | region of radius R1, R2, R3. In this case, the fingertip is guided so as to form an arc shape in any of the annular regions. That is, rounding is physically performed.

  According to this embodiment, in addition to obtaining the same effect as in the second embodiment, it is possible to indicate the unit of fast-forward or rewind amount and improve the degree of freedom of fast-forward or rewind amount that can be selected. it can. At this time, since the radii R1, R2, and R3 are discrete values with sufficient intervals, a desired unit can be surely selected by the fingertip.

  The units of “1s” (1 second), “10s” (10 seconds), and “1M” (1 minute) described above may be used as a unit per one rotation. That is, when the unit is “1 s”, the fast-forward or rewind amount is 1/4 second for 1/4 rotation, 1/2 second for half rotation, and 1 second for one rotation. When the unit is “10 s”, it is 2.5 seconds for 1/4 rotation, 5 seconds for half rotation, and 10 seconds for 1 rotation. When the unit is “1M”, it is 15 seconds for 1/4 rotation, 30 seconds for half rotation, and 1 minute for 1 rotation.

  FIG. 7 is a diagram showing a touch panel portion in a digital audio player according to the fourth embodiment of the present invention. The configuration of this player is the same as that of the second embodiment except that the touch panel 71 is used instead of the touch panel 41. Also in the present embodiment, as in the second embodiment, the amount corresponding to the central angle of the arc shape formed by the movement of the fingertip on the touch panel 71 is converted into a predetermined discrete amount, and the obtained discrete amount is obtained. Fast-forwarding or rewinding is performed by the associated amount. The difference from the second embodiment is that the unit of fast-forward or rewind amount changes according to the moving speed of the fingertip.

  That is, based on the output of the touch panel 71, the processing unit 21 sets the unit of fast-forward or rewind amount as “seconds” when the moving speed is a predetermined low speed VL, and “10 seconds” when the moving speed is a predetermined medium speed VM. If it is a predetermined high speed VH, “minute” is set. Therefore, for example, if the discrete amount obtained based on the arc shape formed by the movement of the fingertip is ¼ rotation, the fast forward or rewind amount is the moving speed of the fingertip when forming the arc shape. 15 seconds for low speed VL, 150 seconds for medium speed VM, and 15 minutes for high speed VH. However, the velocities VL, VM, and VH must be discrete with sufficient spacing so that they can be distinguished by the fingertips. The processing unit 21 averages the moving speed of the fingertip that has actually been moved into the arc shape, obtains a rounded value as one of the speeds VL, VM, or VH, and determines the unit described above. .

  Further, in the present embodiment, the processing unit 21 displays “0” at the position where the fingertip is first touched in order to instruct the fast forward or rewind amount, and further, depending on the subsequent movement direction of the fingertip. A scale of “15”, “30”, “45” is displayed at every 1/4 rotation with reference to. The scale is displayed using the display 14. FIG. 7 shows a case where the position of the clock at 12 o'clock is touched and the finger starts to move clockwise, and “15”, “ The state where “30” and “45” are displayed is shown. When the movement of the finger is started counterclockwise, “15”, “30”, and “45” are displayed at the 9 o'clock, 6 o'clock, and 3 o'clock positions, respectively. When the 3 o'clock position is touched for the first time, the position becomes the display position of “0”. This scale serves as a reference when the user instructs a desired fast forward or rewind amount. For example, in order to fast-forward 45 seconds, if the finger movement is started clockwise from the position of 0 o'clock as shown in FIG. 7, the fingertip is moved to the vicinity of “45” displayed at that time. What is necessary is just to move clockwise at low speed VL. If you want to rewind by 15 minutes, for example, you can start moving your fingertips counterclockwise from the 6 o'clock position and move your fingertips at high speed VH to the vicinity of “15” displayed at the 3 o'clock position. That's fine. In the case of rewinding, a minus sign may be attached to the numerical value of each scale such as “−15”, “−30”, and “−45” so that it can be understood. .

  According to the present embodiment, the same effect as in the third embodiment can be obtained. Further, when the user is not used to the operation, when the fingertip is touched, it is possible to instruct the fast forward or rewind amount with reference to the above-mentioned scale displayed with reference to the position.

  FIG. 8 shows a turn disc portion in a digital player according to the fifth embodiment of the present invention. The player can switch the rotation axis between the first position and the second position in the axial direction instead of the rotary encoder 26 in the first embodiment, and has a self-return function at the second position. The rotary encoder which has is employ | adopted. Other configurations are the same as those in the first embodiment. When the rotary shaft of the rotary encoder is at the first position, as shown in FIG. 8A, the position of the turn disk 12 is at a low position. When in the second position, as shown in FIG. 8B, the position of the turn disk 12 is a high position. Switching between the high position and the low position can be performed by pulling up or pushing the turn disk 12 with a fingertip.

  When the position of the turn disk 12 is at the low position in FIG. 8A, it is formed by the movement of the fingertip on the turn disk 12 based on the number of pulses from the rotary encoder, as in the first embodiment. An amount corresponding to the center angle of the arc shape is acquired as being rounded to a predetermined discrete amount, and fast-forwarding or rewinding is performed by an amount associated with the obtained discrete amount. On the other hand, when the turn disk 12 is at the high position in FIG. 8B, a discrete amount corresponding to the center angle of the arc shape formed by the movement of the fingertip is acquired in the same manner. For the corresponding fast forward or rewind amount, a different unit is applied than in the low position.

  That is, when the turn disk 12 is operated at the low position in FIG. 8A, “second” is applied as a unit of the fast forward or rewind amount, and when operated at the high position in FIG. “10 seconds” or “minutes” applies. Therefore, when the turn disk 12 is operated at the low position in FIG. 8A, the control unit 21 outputs the output of the rotary encoder to 1/4 rotation, half rotation, or 1 as in the case of the first embodiment. Convert to rotation and fast forward or rewind by 15 seconds, 30 seconds, or 1 minute, respectively, depending on the direction of rotation. On the other hand, even when operated at the high position in FIG. 8B, similarly, conversion into 1/4 rotation, half rotation, or 1 rotation is performed. The unit is “10 seconds” for these discrete quantities. Fast forward or rewind according to the direction of rotation for 150 seconds, 300 seconds, or 10 minutes, respectively, and for units of 15 minutes, 30 minutes, or 1 hour, respectively. . Then, playback is continued from the changed playback position.

  Whether the unit when operated at the high position in FIG. 8B is “10 seconds” or “minutes” can be set by the operation unit 23. The rotary encoder in the present embodiment has a self-return function at the high position in FIG. 8B, so that the turn disk 12 is always operated from the same angular position.

  According to this embodiment, in addition to the same effects as in the first embodiment, the fast-forward or rewind can be selected by instructing the unit of fast-forward or rewind amount depending on whether the turn disk 12 is in the low position or the high position. The degree of freedom of quantity can be improved. At this time, the operation of setting the turn disk 12 to the low position or the high position can be performed reliably and easily with the fingertip, so that the unit can be selected reliably and easily.

  Note that the present invention is not limited to the above-described embodiment, and can be appropriately modified and implemented. For example, although not mentioned in the above description, as shown in FIG. 9A, a remote controller provided with an operation key 91 for directly specifying a plurality of types of fast forward or rewind amounts, or as shown in FIG. 9B. In addition, a remote controller including a bar-type operation unit 92 for directly instructing a plurality of types of fast-forward or rewind amounts may be provided.

  Further, the speaker 13 may be removable. Moreover, when rotating the turn disk 12, it is good also as a mechanism which feels ticking in units of 1 second like a second hand of a clock.

1 is a four-side view of a digital audio player according to a first embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration of the digital audio player in FIG. 1. It is a figure which shows the relationship between the amount of rotations of the turn disc in the player of FIG. 1, and fast-forward or rewinding time. It is a figure which shows the rotary encoder and turn disk in the player of FIG. It is a figure which shows the touchscreen part in the digital audio player which concerns on the 2nd Embodiment of this invention. It is a figure which shows the touchscreen part in the digital audio player which concerns on the 3rd Embodiment of this invention. It is a figure which shows the touchscreen part in the digital audio player which concerns on the 4th Embodiment of this invention. It is a figure which shows the turn disc part in the digital player which concerns on the 5th Embodiment of this invention. It is a figure which shows the remote control which concerns on the modification of this invention.

Explanation of symbols

  11: control area, 12: turn disk, 13: speaker, 14: display, 15: battery, 16: protect frame, 17: handle, 21: processing unit, 22: storage unit, 23: operation unit, 24: display unit 25: Audio output unit, 26: Rotary encoder, 51, 61, 71: Touch panel, 91: Operation key, 92: Operation unit.

Claims (8)

Storage means for storing content data;
Playback means for playing back content based on the content data stored in the storage means;
A center angle corresponding amount acquisition means for acquiring an amount corresponding to the center angle of the movement trajectory of the fingertip moved in an arc shape on a predetermined operation surface, as rounded to a predetermined discrete amount;
Displacement means for displacing the reproduction position during reproduction by the reproduction means by a displacement amount corresponding to the amount obtained by the center angle correspondence amount acquisition means,
The content reproduction apparatus according to claim 1, wherein the predetermined discrete amount is discrete such that each discrete amount can be arbitrarily designated by movement of the fingertip. The predetermined operation surface is constituted by a rotating body that rotates by the movement of the fingertip,
The content reproduction apparatus according to claim 1, wherein the amount corresponding to the central angle is a rotation amount of the rotating body. The predetermined operation surface is configured by a touch panel that outputs information on each movement position when the arcuate fingertip moves.
The content reproduction apparatus according to claim 1, wherein the amount corresponding to the center angle is obtained based on information about each movement position output from the touch panel. A radius corresponding amount acquisition means for acquiring an amount corresponding to a radius of the arcuate movement trajectory rounded to a predetermined discrete amount;
Unit setting means for setting a unit of the displacement based on the amount obtained by the radius corresponding amount acquisition means;
4. The content reproduction apparatus according to claim 3, wherein the predetermined discrete amount for the amount corresponding to the radius is discrete such that each discrete amount can be arbitrarily designated when the fingertip is moved. . Speed corresponding amount acquisition means for acquiring an amount corresponding to the speed of movement of the fingertip as a rounded value of a predetermined discrete amount;
Unit setting means for setting a unit of the displacement amount based on the amount obtained by the speed corresponding amount acquisition means,
5. The predetermined discrete amount for the amount corresponding to the moving speed is discrete so that each discrete amount can be arbitrarily designated when the fingertip is moved. The content reproduction apparatus according to item 1. The rotating body is rotated by the movement of the fingertip at a first position and a second position in a rotation axis direction,
The content according to claim 2, further comprising unit changing means for changing a unit of the displacement amount according to whether the displacement amount is related to the first position or the second position. Playback device.   A scale corresponding to the displacement amount based on the position where the fingertip first touched on the predetermined operation surface for the arc-shaped movement is a guideline for indicating the displacement amount by moving the fingertip. The content reproduction apparatus according to claim 1, further comprising a display unit configured to display the content. A storage step of storing content data;
A reproduction step of reproducing content based on the content data stored in the storage means;
A center angle corresponding amount acquisition step of acquiring an amount corresponding to the center angle of the movement trajectory of the fingertip moved in an arc shape on a predetermined operation surface as rounded to a predetermined discrete amount;
A displacement step of displacing the reproduction position during reproduction by the reproduction step by a change amount corresponding to the amount obtained by the center angle corresponding amount acquisition step,
The content reproduction method according to claim 1, wherein the predetermined discrete amount is discrete to such an extent that each discrete amount can be arbitrarily designated by movement of the fingertip.

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