WO2006082884A1

WO2006082884A1 - Contents reproduction device, contents reproduction method, contents reproduction program, and computer-readable recording medium

Info

Publication number: WO2006082884A1
Application number: PCT/JP2006/301755
Authority: WO
Inventors: Hiroaki Shibasaki; Koji Koga; Mari Kitada; Kiyoshi Morikawa; Shuuji Watanabe
Original assignee: Pioneer Corporation
Priority date: 2005-02-03
Filing date: 2006-02-02
Publication date: 2006-08-10

Abstract

A contents reproduction device has a route search section (101) for searching for a route up to a destination based on map information; a determination section (102) for determining contents to be reproduced, the determination being based on information on the destination or information on the route searched by the route search section (101); a contents acquisition section (103) for acquiring the contents determined by the determination section (102); and a reproduction section (104) for reproducing the contents acquired by the contents acquisition section (103).

Description

Content playback device, content playback method, content playback program, and computer-readable recording medium

Technical field

The present invention relates to a content reproduction device, a content reproduction method, and a content reproduction program

And a computer-readable recording medium. However, the use of the present invention is not limited to a content playback device, a content playback method, a content playback program, and a computer-readable recording medium.

Background art

Conventionally, there are content reproduction apparatuses that reproduce various contents such as movies and TV programs. In such a content playback apparatus, the content can be selectively played back by designating keywords related to the content to be played back in advance. For example, if you want to play back content that has been recorded on a program that has been televised in the past, there is a content playback device that implements a program search heading function based on the recording date of the content, keywords, etc. (for example, (See Non-Patent Document 1 below.) O

[0003] Non-Patent Document 1: Hitachi, Ltd., “New Product-Use Release“ Dijiru Tape Navi (DT—DR 1) ”, [online], August 22, 2001, [December 2004 28 days search], Internet URL: http://www.hitachi.co.jp/New/cnews/2001/0822/>

Disclosure of the invention

Problems to be solved by the invention

[0004] However, with the conventional technology, the user does not have to perform a complicated operation of specifying the content to be played by inputting the recording date and time of the content, a keyword, and the like, and playing the specified content. One example is the problem. Means for solving the problem

[0005] The content playback apparatus according to the invention of claim 1 includes route search means for searching for a route to a destination based on map information, and information about the destination or information about the route searched by the route search means. To determine the content to play based on The content acquisition means for acquiring the content determined by the determination means, and the playback means for playing back the content acquired by the content acquisition means.

[0006] The content reproduction method according to the invention of claim 7 includes a route search step for searching for a route to a destination based on map information, and information on the destination or information on a route searched by the route search step. The content acquisition step for determining the content to be played based on the content acquisition step, the content acquisition step for acquiring the content determined by the determination step, and the playback step for playing back the content acquired by the content acquisition step. It is characterized by.

A content reproduction program according to the invention of claim 8 causes a computer to execute the content reproduction method according to claim 7.

[0008] A computer-readable recording medium according to the invention of claim 9 is characterized in that the content reproduction program according to claim 8 is recorded.

Brief Description of Drawings

FIG. 1 is a block diagram showing an example of a functional configuration of a content reproduction apparatus according to Embodiment 1 of the present invention.

[FIG. 2] FIG. 2 shows a processing procedure of the content reproduction apparatus according to the first embodiment of the present invention.

FIG.

FIG. 3 is a block diagram showing an example of a functional configuration of the content reproduction device according to the second embodiment of the present invention.

[FIG. 4] FIG. 4 shows the processing procedure of the content reproduction apparatus according to the second embodiment of the present invention.

FIG.

FIG. 5 is a block diagram showing an example of a hardware configuration of the navigation device according to the embodiment of the present invention.

[FIG. 6] FIG. 6 is a flowchart for explaining a processing procedure performed when a reproduction schedule list is created.

[FIG. 7] FIG. 7 is a flowchart for explaining a processing procedure performed in content reproduction. [FIG. 8] FIG. 8 is a flowchart for explaining a processing procedure performed when the reproduction schedule list is updated.

FIG. 9 is an explanatory diagram showing an example of a data structure of content.

Explanation of symbols

[0010] 101 route search unit

102 Decision part

103 Content acquisition unit

104 Playback section

105 Selector

106 Time information acquisition department

107 Weather information acquisition department

301 Guide section

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of a content reproduction device, a content reproduction method, a content reproduction program, and a computer-readable recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

[0012] (Embodiment 1)

(Functional configuration of content playback device)

The content reproduction apparatus according to the first embodiment of the present invention is mounted on a mobile object. Examples of the moving body include vehicles (including four-wheeled vehicles and two-wheeled vehicles). FIG. 1 is a block diagram showing an example of a functional configuration of the content reproduction apparatus according to the first embodiment of the present invention. As shown in FIG. 1, the content playback apparatus according to the first embodiment of the present invention includes a route search unit 101, a determination unit 102, a content acquisition unit 103, a playback unit 104, a selection unit 105, and time information. The acquisition unit 106, the weather information acquisition unit 107, and the display unit 108 are included.

[0013] The route search unit 101 searches for a route to the destination based on the map information. When searching for a route, a route with a high priority is searched based on settings made in advance by the user. For example, the preset setting may be “destination rather than short distance”. `` Search for the route that arrives at the earliest time '', `` Search for routes with priority on general roads (or toll roads) '', `` Search for routes so as to pass on roads with a width of 6 m or more '', etc. . Information on the route searched by the route search unit 101 or the destination set in the route search is stored in a storage unit (not shown) provided in the content reproduction device.

SC fed.

[0014] The "route searched by the route search unit 101" includes a route searched before the start of route guidance and a route searched again during route guidance. The re-search is performed when there is a traffic jam on the route being routed or when the waypoint or destination is intentionally changed by the user. The re-searched route often includes the user's intention. For example, if a route along the sea is searched after a route that travels along a mountain is re-searched, the user is willing to desire a route that passes along the sea rather than along the mountain. It can be guessed that it is included.

The determination unit 102 determines the content to be reproduced based on the information on the destination or the information on the route searched by the route search unit 101. The determination unit 102 may determine the content to be reproduced based on the information on the destination or the information on the route and the information acquired by the time information acquisition unit 106. The determination unit 102 may determine the content to be reproduced based on the information on the destination or the information on the route and the information acquired by the weather information acquisition unit 107. The determination unit 102 may extract a keyword for information on the destination or information power regarding the route searched by the route search unit 101, and determine the content to be reproduced based on the extracted keyword. .

[0016] The content acquisition unit 103 acquires the content determined by the determination unit 102. The content acquisition unit 103 may acquire content held by the content reproduction device, or may acquire content from outside the content reproduction device. The playback unit 104 plays back the content acquired by the content acquisition unit 103. When playing back content, video is displayed on the display unit 108 or audio is used.

The selection unit 105 selects the route searched by the route search unit 101. The route selection by the selection unit 105 is performed by selecting one of the routes searched by the route search unit 101. Is done. If there is only one route searched by the route search unit 101, the route is selected by searching for the route. On the other hand, when a plurality of routes are searched by the route search unit 101, one route is selected.

[0018] The time information acquisition unit 106 acquires information related to at least one of the date and time when the route is selected by the selection unit 105. The weather information acquisition unit 107 acquires information regarding the weather when the route is selected by the selection unit 105.

(Processing procedure of content reproduction apparatus)

Next, the processing procedure of the content reproduction device according to the first embodiment of the present invention will be described. FIG. 2 is a flowchart for explaining the processing procedure of the content reproduction apparatus according to the first embodiment of the present invention. The process shown in FIG. 2 first waits until it is determined that a route has been selected (step S201: No). If it is determined that a route has been selected (step S 201: Yes), information on the destination or information on the route searched by the route search unit 101 is acquired (step S 202). The process of step S 202 is described as “Destination Z route information acquisition” in FIG. Then, keywords are extracted based on the information acquired in step S202 (step S203). The keywords extracted in step S203 are, for example, the name of the destination and the name of the facility included in the route.

[0020] Next, it is determined whether or not to consider the time information (step S204). The determination as to whether or not the power considering the time information may be made based on, for example, the setting in the determination unit 102. When it is determined that the time information is considered (step S204: Yes), the time information is acquired (step S205). For example, when a dedicated storage unit for storing the time information is provided, the time information may also be acquired. Further, without providing a dedicated storage unit, it is possible to acquire information regarding the history of the route searched by the route search unit 101. If it is determined that the timing information is not taken into consideration (step S204: No), the process proceeds to step S206.

[0021] Subsequently, it is determined whether or not to consider weather information (step S206). Judgment whether or not the ability to consider the weather information is made based on the setting in the determination unit 102, for example. Also good. If it is determined that the weather information is considered (step S206: Yes), the weather information is acquired (step S207). For example, when a dedicated storage unit for storing weather information is provided, the storage unit may also acquire the storage unit power. Also, if you decide to consider weather information without providing a dedicated storage unit, you may want to acquire the external force of the navigation device. If it is determined that the weather information is not taken into consideration (step S206: No), the process proceeds to step S208.

[0022] Then, it is determined whether there is corresponding content (step S208). In step S2 08, if it is determined in step S204 that the time information is considered, there is corresponding content based on the information on the destination or the information on the route and the information acquired by the time information acquisition unit 106. Judge whether it is power or not. In step S2 08, if it is determined in step S206 that the weather information is to be taken into account, the corresponding content is determined based on the information on the destination or information on the route and the information acquired by the weather information acquisition unit 107. Determine if there is power. In step S208, for example, it may be determined whether or not there is a corresponding content by determining whether or not there is content including the extracted keyword.

If it is determined in step S208 that there is no corresponding content (step S208: No), the process returns to step S201. On the other hand, if it is determined that there is the corresponding content (step S208: Yes), the corresponding content is determined as the content to be played back (step S209), and the determined content is acquired (step S210).

Thereafter, it is determined whether or not the vehicle engine is powered (step S211). If it is determined that the vehicle engine is not powered (step S211: No), the process returns to step S210. When it is determined that the engine of the vehicle was once powerful (step S211: Yes), the acquired content is played back (step S212).

As described above, according to the content reproduction apparatus of the present embodiment, the content determined based on the information related to the destination or the information related to the route to the destination searched based on the map information is stored. Played. As a result, content related to the destination or route can be played back without causing the user to perform troublesome searches.

[0026] Also, according to the content reproduction apparatus of the present embodiment, the route search unit 101 performs the search. Information regarding at least one of the date and time when the selected route is selected is acquired. Then, the content to be reproduced is determined based on the information on the destination or the information on the route and the information acquired by the time information acquisition unit 106. As a result, content related to the destination or route and also related to the date and time when the route is selected can be played, and the entertainment provided to the user can be improved.

Furthermore, according to the content reproduction device of the present embodiment, information regarding the weather when the route searched by route search unit 101 is selected is acquired. Then, based on the information on the destination or the information on the route and the information acquired by the weather information acquisition unit 107, the content to be played is determined. This makes it possible to play content that is related to the destination or route, as well as the weather when the route is selected, and can improve the entertainment provided to the user. .

In addition, according to the content playback apparatus of the present embodiment, the content to be played back is determined based on the extracted information about the destination or information about the route. This makes it possible to play content that is directly related to the destination or route, and to further improve the entertainment provided to the user.

[0029] (Embodiment 2)

(Functional configuration of content playback device)

The content reproduction apparatus according to the second embodiment of the present invention is mounted on a mobile object. Examples of the moving body include vehicles (including four-wheeled vehicles and two-wheeled vehicles). FIG. 3 is a block diagram showing an example of a functional configuration of the content reproduction apparatus according to the second embodiment of the present invention. As shown in FIG. 3, the content playback apparatus according to the second embodiment of the present invention includes a route search unit 101, a determination unit 102, a content acquisition unit 103, a playback unit 104, a guidance unit 301, and time information. The acquisition unit 106, the weather information acquisition unit 107, and the display unit 108 are included.

The guiding unit 301 performs route guidance using the route searched by the route searching unit 101. . When the route is guided by the guide unit 301, the route searched by the route search unit 101 may be displayed on the display unit 108.

[0031] The timing information acquisition unit 106 of the present embodiment acquires information related to at least one of the date and time when the route guidance is performed by the guide unit 301. The weather information acquisition unit 107 according to the present embodiment acquires information on the weather when the route guidance is performed by the guide unit 301.

[0032] The determination unit 102 according to the present embodiment determines the content to be played based on the information regarding the destination or the route, and the information acquired by the time information acquisition unit 106. Further, the determination unit 102 according to the present embodiment determines the content to be reproduced based on the information on the destination or the information on the route and the information acquired by the weather information acquisition unit 107.

(Processing procedure of content reproduction apparatus)

Next, the processing procedure of the content reproduction apparatus according to the second embodiment of the present invention will be described. FIG. 4 is a flowchart for explaining a processing procedure of the content reproduction apparatus according to the second embodiment of the present invention. The process shown in FIG. 4 is executed on condition that the route search unit 101 has previously performed a route search. In the process shown in FIG. 4, it is first determined whether or not the force is being routed (step S401).

If it is determined that route guidance is in progress (step S401: Yes), information on the destination in route guidance or information on the route searched by the route search unit 101 is acquired (step S402). The process of step S402 is described as “Destination Z route information acquisition” in FIG. Then, keywords are extracted based on the information acquired in step S402 (step S403). The keyword extracted in step S403 is, for example, the name of the destination or the name of the facility included in the route, as with the keyword extracted in step S203 of FIG.

[0035] Next, it is determined whether or not to consider the time information (step S404). The determination as to whether or not the power considering the time information may be made based on the setting in the determination unit 102, for example. If it is determined that the time information is considered (step S404: Yes), the time information is acquired (step S405). The time information is, for example, a dedicated memory for storing time information. In the case where the unit is provided, the storage unit strength may also be acquired. Further, without providing a dedicated storage unit, it is possible to acquire information regarding the history of the route searched by the route search unit 101. If it is determined that the time information is not considered (step S404: No), the process proceeds to step S406.

Next, it is determined whether or not weather information is taken into consideration (step S406). The determination of whether or not the ability to consider the weather information may be made based on the setting in the determination unit 102, for example. If it is determined that the weather information is considered (step S406: Yes), the weather information is acquired (step S407). For example, when a dedicated storage unit for storing weather information is provided, the storage unit may also acquire the storage unit power. Also, if you decide not to provide a dedicated storage unit and consider weather information, you can also acquire the external force of the navigation device. If it is determined that the weather information is not taken into consideration (step S406: No), the process proceeds to step S408.

[0037] Then, it is determined whether there is corresponding content (step S408). If it is determined in step S404 that the time information is considered in step S404, there is content corresponding to the information based on the information on the destination or the route and the information acquired by the time information acquisition unit 106. Judge whether it is power or not. In step S408, if it is determined in step S406 that the weather information is to be taken into account, the corresponding content is determined based on the information on the destination or information on the route and the information acquired by the weather information acquisition unit 107. Determine if there is power. In step S408, for example, it may be determined whether or not the corresponding content has power by determining whether or not there is content including the extracted keyword.

If it is determined in step S408 that there is no content including the extracted keyword (step S408: No), the process returns to step S401. On the other hand, if it is determined that there is content including the extracted keyword (step S408: Yes), the content including the extracted keyword is determined as the content to be played back (step S409), and the determined content is acquired (step S409). Step S410).

[0039] Play the acquired content (step S411), and during playback, determine whether the scheduled arrival time at the destination related to the content or the planned transit time at the waypoint has changed. (Step S412). In FIG. 4, the processing of step S412 is described as “Did the arrival Z scheduled time change?”. For example, if there is a traffic jam on the route used for route guidance, the estimated time of arrival at the destination or the estimated transit time of the waypoint may change. If it is determined that there is no change in the estimated arrival time at the destination related to the content or the expected transit time at the waypoint (step S412: No), the process returns to step S411 and the content reproduction is continued.

If it is determined that the estimated arrival time at the destination related to the content or the estimated transit time at the waypoint has changed (step S412: Yes), the process proceeds to step S404. Then, it is determined again whether or not to consider the time information and weather information, and based on the determination result, it is determined whether or not the corresponding content has power. If there is such content, the content is updated. To get to. Then, instead of the content being reproduced, the newly acquired content is reproduced. If there is no corresponding content, continue playing the already acquired content.

[0041] Thus, according to the content reproduction device of the present embodiment, route guidance using the route searched by route search unit 101 is performed, and at least one of the date and time is changed. The information concerning is acquired. Then, based on the information on the destination or the information on the route and the information acquired by the time information acquisition unit 106, the content to be reproduced is determined. As a result, it is possible to play back content that is related to the destination or route and also related to the date and time when route guidance is being performed.

[0042] According to the content playback apparatus of the present embodiment, route guidance that changes in accordance with changes in road conditions is performed, and playback is performed based on information regarding at least the date and time of the deviation. Since the content to be decided is determined, the content suitable for each situation can be reproduced according to the change of the road situation. As a result, entertainment provided to the user can be improved.

[0043] This is because even content related to the destination or route may vary greatly depending on the date and time. Specifically, when performing route guidance using a route that passes through a soccer stadium, It is possible that the date or time is expected to be crowded, but the date or time when the game is not being played is not heavily crowded.

[0044] In the content playback device of the present embodiment, when it is predicted that the route will be routed near the stadium when crowded at the time of route guidance, the content related to soccer is played back and is not crowded. If it goes smoothly to the ground, the content related to the destination can be played. As a result, the cause of the congestion can be estimated, and the effect of reducing the stress caused by the congestion can be expected. In the present embodiment, it is possible to respond to such road conditions that differ depending on the date or time in real time, and to select content that relates to the date or time in addition to the destination or route.

[0045] Also, according to the content reproduction device of the present embodiment, information on the weather when route guidance using the route searched by route search unit 101 is performed is acquired. Then, based on the information on the destination or the information on the route and the information acquired by the weather information acquisition unit 107, the content to be reproduced is determined. This makes it possible to reproduce content that is related to the destination or route and also related to the weather when route guidance is being performed.

[0046] Specifically, at the start of route guidance, it is assumed that information on the weather at a time predicted to arrive at the destination when the route passes smoothly is acquired. In fact, it is assumed that the time predicted to arrive at the destination is changed with respect to the time estimated at the start of route guidance because the vehicle has passed through a traffic jam on the way. In this embodiment, even if there is such a change, weather information corresponding to the change can be acquired in real time, and the contents related to the weather can be selected regardless of the destination or route. .

Example

[0047] (Hardware configuration of navigation device)

Next, the hardware configuration of the navigation apparatus that is useful in the embodiment of the present invention will be described. The navigation device of the present embodiment is an example for realizing the content reproduction device of the present invention. FIG. 5 is a block diagram showing an example of a hard- ware configuration of a navigation apparatus that is useful in the embodiment of the present invention.

[0048] In FIG. 5, the navigation device that is useful in the embodiment of the present invention is mounted on a vehicle. ing. The navigation apparatus includes a central control unit 501, a user operation unit 502, a display unit 503, a position acquisition unit 504, a recording medium 505, a recording medium decoding unit 506, a guidance sound output unit 507, and a communication unit. 508, a route search unit 509, a route guidance unit 510, a guidance sound generation unit 511, a speaker 512, a reproduction unit 513, a storage medium 514, and a reproduction condition storage unit 515. Yes.

[0049] The central control unit 501 controls the entire navigation device. For example, the central control unit 501 includes a CPU (Central Processing Unit) that executes predetermined arithmetic processing, a ROM (Read Only Memory) that stores various control programs, and a RAM (Random Access Memory) that functions as a work area for the CPU. ) Etc., and can be realized by a computer with a microphone.

[0050] In the ROM or RAM, for example, a memory area is secured for storing content acquired from the outside of the navigation device in a rewritable manner. In addition, the ROM or RAM has a memory area for storing a replay schedule list (not shown) in a rewritable manner.

The central control unit 501 obtains information about the current position acquired by the position acquisition unit 504 and the recording medium 505 via the recording medium decoding unit 506 when the route guidance unit 510 performs route guidance. Based on the obtained map information, it calculates which position on the map the vehicle is traveling on and outputs the calculation result to the display unit 503. In addition, the central control unit 501 inputs / outputs information related to route guidance to / from the route search unit 509, the route guidance unit 510, and the guidance sound generation unit 511, and information obtained as a result thereof. Is output to the display unit 503 and the guide sound output unit 507.

The user operation unit 502 outputs information input by the user such as characters, numerical values, and various instructions to the central control unit 501. As the configuration of the user operation unit 502, various known forms such as a push button switch, a touch panel, a keyboard, and a joystick that detect physical pressing Z non-pressing can be employed. The user operation unit 502 may be configured to perform an input operation by sound using a microphone that inputs sound from the outside.

[0053] User operation unit 502 may be provided integrally with the navigation device. In addition, the navigation device power may be separated and operated like a remote control.

. The user operation unit may be configured in any one of the various forms described above, or may be configured in a plurality of forms. The user inputs information by appropriately performing an input operation according to the form of the user operation unit 502. For example, a destination is given as information input by the operation of the user operation unit 502. Specifically, for example, when a navigation device is provided in a vehicle or the like, a point to be reached by a person who gets on this vehicle and becomes V is set.

For example, when a touch panel is adopted as the form of the user operation unit 502, the touch panel is used by being stacked on the display surface side of the display unit 503. In this case, the input information is recognized by managing the display timing on the display unit 503, the operation timing on the touch panel (user operation unit 502), and the position coordinates thereof. By adopting a touch panel stacked on the display unit 503 as a form of the user operation unit 502, it is possible to input a large amount of information without increasing the size of the user operation unit 502. As the touch panel, various known touch panels such as a resistance film type and a pressure sensitive type can be used.

[0055] Display unit (monitor) 503 includes, for example, a CRT (Cathode Ray Tube), a TFT liquid crystal display, an organic EL display, a plasma display, and the like. Specifically, the display unit 503 can be configured by, for example, a video IZF or a video display device connected to the video IZF.

[0056] Specifically, the video IZF includes, for example, a graphic controller that controls the entire display device, a buffer memory such as a VRAM (Video RAM) that temporarily stores image information that can be displayed immediately, and the like. Based on the image information output from the graphic controller, it is composed of a control IC that controls the display of the display device. Display unit 503 displays icons, cursors, menus, windows, or various information such as characters and images. In addition, the display unit 503 displays map information stored in the recording medium 505 and information related to route guidance such as a route searched by the route search unit 509.

[0057] The position acquisition unit 504 acquires the current position of the device itself. The current position of its own device is the one that receives radio waves from GPS satellites and obtains the geometric position with GPS satellites. It can be measured anywhere. GPS is an abbreviation for Global Positioning System, and is a system that accurately determines the position on the ground by receiving radio waves from four or more satellites. In addition, since it is a well-known technique, description about GPS is abbreviate | omitted. The position acquisition unit 504 can be configured by, for example, an antenna for receiving radio waves of satellite power, a tuner that demodulates the received radio waves, an arithmetic circuit that calculates the current position based on the demodulated information, and the like.

[0058] Radio waves from GPS satellites are: 1. 57542 GHz carrier, CZA (Coarse and

(Access) code and navigation message are carried on L1 radio waves. This detects the current position (latitude and longitude) of the device itself. When detecting the current position of the own device, information collected by various sensors such as a vehicle speed sensor and a gyro sensor may be taken into consideration. The vehicle speed sensor detects from the output shaft of the transmission of the vehicle equipped with the navigation device.

In addition, when acquiring the current position of the device itself, information collected from various sensors such as an angular velocity sensor, a travel distance sensor, and an inclination sensor may be taken into consideration. The angular velocity sensor detects the angular velocity when the host vehicle is rotating, and outputs angular velocity information and relative orientation information. The mileage sensor calculates the number of pulses per rotation of the wheel by counting the number of pulses of a pulse signal with a predetermined period output as the wheel rotates, and the mileage based on the number of pulses per rotation Output information. The inclination sensor detects the inclination angle of the road surface and outputs inclination angle information.

[0060] The recording medium 505 records various control programs and various information in a computer-readable manner. The recording medium 505 accepts writing of information by the recording medium decoding unit 506 and records the written information in a nonvolatile manner. The recording medium 505 can be realized by, for example, HD (Hard Disk).

[0061] Recording medium 505 is not limited to HD. In addition to HD or in addition to HD, DVD (Digital Versatile Disk), CD (Compact Disk), etc. can be attached to and removed from recording medium decoding unit 506 Therefore, a medium having portability may be used as the recording medium 505. Further, the recording medium 505 is not limited to DVD and CD, but is a recording medium such as a CD-ROM (CD-R, CD-RW), MO (Magneto-Optical disk), or memory card. It is also possible to use a medium that is detachable from the body decoding unit 506 and has portability.

[0062] A recording medium 505 in the present embodiment records a program recording program, map information, and the like that realize the present invention. The map information is used for route search by the route search unit 509 and route guidance by the route guide unit 510. The map information includes background information that represents features (features) such as buildings, rivers, and the ground surface, and road shape information that represents the shape of the road. Two-dimensional or three-dimensional information is displayed on the display screen of the display unit 503. It is drawn in the dimension.

[0063] The background information includes background shape information representing the shape of the background and background type information representing the type of the background. The background shape information includes, for example, information indicating feature points, polylines, polygons, feature coordinates, and the like. The background type information includes, for example, text information indicating the name, address, telephone number, and the like of the feature, type information indicating the type of the feature such as a building “river”, and the like.

[0064] The road shape information is information related to a road network having a plurality of nodes and links. The node is information indicating an intersection where a plurality of roads intersect, such as a three-way “crossroad” and a five-way. A link is information indicating a road connecting nodes. Some links have shape interpolation points that allow the expression of curved roads. Road shape information has traffic condition information. The traffic condition information is information indicating the characteristics of the intersection, the length (distance) of each link, vehicle width, traveling direction, traffic prohibition, road type, and the like.

[0065] The characteristics of intersections include, for example, complex intersections such as three- and five-way intersections, intersections where roads branch at shallow angles, intersections around destinations, highway entrances and junctions, route deviation rates, and so on. For example, high intersections. The route departure rate can be calculated from, for example, past travel history data. Examples of road types include expressways, toll roads, and general roads.

In this embodiment, the force for recording the map information on the recording medium 505 is not limited to this. The map information may be provided outside the navigation device, not limited to the one recorded with the navigation device hardware. In that case, the navigation device is connected to the network through the communication unit 508, for example. Get map information via The acquired map information is stored in RAM or the like.

The recording medium decoding unit 506 controls reading of information on the recording medium 505 and writing of Z. For example, when HD is used as the recording medium 505, the recording medium decoding unit 506 is an HDD (Hard Disk Drive). Similarly, when a DVD or CD (including CD-R and CD-RW) is used as the recording medium 505, the recording medium decoding unit 5006 is a DVD drive or a CD drive.

[0068] When a CD-ROM (CD-R, CD-RW), MO, memory card, or the like is used as a writable and removable recording medium 505, information is written to various recording media 505. In addition, a dedicated drive device capable of reading information stored in various recording media 505 is used as the recording media decoding unit 506 as appropriate.

[0069] The guide sound output unit 507 reproduces the guide sound by controlling the output to the connected speaker 512. One or more speakers 512 may be provided. Specifically, the guidance sound output unit 507 can be realized by an audio IZF connected to the audio output speaker 512. More specifically, the audio IZF is, for example, a DZ A converter that performs DZA conversion of audio digital information, an amplifier that amplifies an audio analog signal output from the DZA converter, and an AZD that performs AZD conversion of audio analog information. A converter and force can be configured.

[0070] The communication unit 508 communicates with a device outside the navigation device. The communication unit 508 acquires the external force of the navigation device such as content to be reproduced and weather information by communicating with an external server, for example. Communication for acquiring content to be reproduced and weather information can be realized using various known wireless communication technologies. In this embodiment, the configuration required for acquiring the content and weather information and the communication technology for acquiring the content and weather information are well-known technologies, and thus description thereof is omitted.

The communication unit 508 receives road traffic information such as traffic jams and traffic restrictions. Reception of road traffic information by the communication unit 508 may be regular or irregular. Receiving road traffic information by 508 commuters at the communications department VICS (Vehicle Information and Communicati on System) Center power can also be received at the timing when road traffic information is distributed! This may be done by periodically requesting road traffic information from the vies center. The communication unit 508 can be realized as, for example, an FM tuner, a VICSZ beacon receiver, and other communication devices. The received road traffic information is used, for example, for re-searching the route during route guidance.

[0072] Power to omit detailed explanation because it is a well-known technology "VICS" refers to road traffic information such as traffic jams and traffic regulations edited and processed at the VICS center in real time. It is an information communication system that displays characters and figures on the screen. As a method of transmitting road traffic information (VICS information) edited and processed at the VICS Center to the car navigation system, there is a method of using “beacon” and “FM multiplex broadcasting” installed on each road. . “Beacons” include “radio wave beacons” mainly used on expressways and “optical beacons” used on major general roads. When “FM multiplex broadcasting” is used, road traffic information in a wide area can be received. When using a “beacon”, it is possible to receive the necessary road traffic information at the location where the vehicle is located, such as detailed information on the most recent road based on the vehicle's location.

[0073] The route search unit 509 includes a current position acquired by the position acquisition unit 504, a destination input by the user, and map information obtained from the recording medium 505 via the recording medium decoding unit 506. Based on, the optimum route from the current position to the destination is calculated. In this embodiment, the calculation of the optimum route from the current position to the destination performed by the route search unit 509 will be described as a route search. Further, description will be made assuming that a route is selected by searching for a route by the route search unit 509. When multiple routes are searched, it is assumed that the route is selected when one of the routes is specified. The designation of the route is performed by, for example, displaying the route individually searched using the user operation unit 502 in order to individually confirm a plurality of searched routes.

[0074] The route search unit 509 searches for a route after the start of route guidance, such as during route guidance, in addition to the route search before the start of route guidance. In general, searching for a route after the start of route guidance is referred to as re-search or re-route. The re-search is performed when the user intentionally changes the waypoint or destination in addition to the case where traffic jams occur on the route being routed. The re-searched route includes the user's will There are many cases.

[0075] For example, when a route that passes along the sea is searched after a route that passes along the mountain is searched, the user desires a route that passes along the sea rather than along the mountain! In this embodiment, the description will be made as “search” including such re-search.

The route guidance unit 510 records information related to the route searched by the route search unit 509, road traffic information received by the communication unit 508, information about the current position acquired by the position acquisition unit 504, and recording Based on the map information obtained from the medium 505 via the recording medium decoding unit 506, real-time route guidance information is generated. The route guidance information generated by the route guidance unit 510 is output to the display unit 503 via the central control unit 501.

[0077] Guidance sound generator 511 generates tone and voice information corresponding to the pattern. Specifically, the guidance sound generation unit 511 performs setting of a virtual sound source corresponding to the guidance point and generation of voice guidance information based on the route guidance information generated by the route guidance unit 510, and this is generated by the central control unit 501. To the guide sound output unit 507.

[0078] Reproduction unit 513 reproduces content. When the content is reproduced, the video is displayed on the display unit 503 and the audio is output from the guidance sound output unit 507 via the speaker 512. The content played back by the playback unit 513 may be content stored in the storage medium 514 in advance. The content may also have acquired the external power of the navigation device by the communication unit 508.

In this case, the content acquired from the outside of the navigation device by the communication unit 508 may be temporarily stored in the ROM or RAM, or may be stored in the storage medium 514 in a nonvolatile manner. As the storage medium 514, for example, HD can be used. When HD is used as the storage medium 514, the playback unit 513 is one HD player.

[0080] The storage medium 514 may be fixed to the playback unit 513, or may be a portable medium that can be attached to and detached from the playback unit 513. For example, a DVD-R / RW or a memory card can be used as the portable storage medium 514 that can be attached to and detached from the playback unit 513. As storage medium 514, DVD (DV (Including DR / RW), the playback unit 513 is a DVD player. Since this is a known technique, the description of the structure of the HD player and DVD player, and the mechanism of content playback in the HD player and DV player will be omitted.

The storage medium 514 stores content to be played back by the playback unit 513. The content stored in the storage medium 514 may be, specifically, a content recorded by a user on a TV program, and is commercially available in a state of being stored in a medium such as a movie. It may be content. Further, the content stored in the storage medium 514 may be stored in a navigation device, or may be stored in an external device such as a home recorder. The storage medium 514 is not limited to a disk medium such as HD or DVD. For example, a semiconductor memory such as a flash memory or other various media can be used.

[0082] The playback condition storage unit 515 stores various types of information required for determining content. Examples of various information required for determining content include “whether or not to consider time information and weather information when extracting a keyword used to determine content to be played”. The time information is information relating to a deviation force at least of the date and time when the route is selected or the date and time when the route is guided.

[0083] The date and time when route guidance is performed may be the date and time when route guidance is performed! /. For example, the time when route guidance is started may be the “date and time when route guidance is performed”. If there is a change in the route used for route guidance, the point in time when the route is changed It may be referred to as “date and time when route guidance is performed”.

The weather information is information regarding the weather when the route searched by the route search unit 509 is selected. The weather information is information regarding the weather when route guidance is being performed based on the route searched by the route search unit 509. The weather during route guidance may be the weather during route guidance. For example, the weather at the destination at the start of route guidance may be “weather when route guidance is being performed”, or if there is a change in the route used for route guidance, The weather at the destination when there is a change in the destination may be referred to as the “weather when the route is being routed” Yes. The weather at the time of route guidance may be the weather at the destination when it is predicted to arrive at the destination if the route guidance is followed.

[0085] The time information and the weather information may be stored in a dedicated storage unit provided for storing the time information and the weather information. Time information and weather information may be obtained from an external server as needed when extracting keywords used to determine the content to be played.

[0086] (Processing procedure of navigation device)

Next, the processing procedure of the navigation apparatus that is useful in the embodiment of the present invention will be described. The processing of the navigation apparatus according to the embodiment of the present invention is realized by appropriately executing each process of creating a reproduction schedule list, reproducing a content, and updating a reproduction schedule list.

FIG. 6 is a flowchart for explaining the processing procedure performed when the reproduction schedule list is created. The process shown in FIG. 6 is performed on the assumption that the user has set a destination and instructed to search for a route to the destination. The process shown in FIG. 6 first waits until it is determined that a route has been selected (step S601: No).

[0088] If it is determined that a route has been selected (step S601: Yes), information on the destination or information on the route searched by the route search unit 509 is acquired (step S602). Then, keywords are extracted based on the information acquired in step S602 (step S603). The keywords extracted in step S603 are, for example, the name of the destination, the name of the tourist spot on the route (facility name), the address name, and the genre name.

In addition, the keywords extracted in step S603 may be extracted based on, for example, the facility name, address name, genre name, nearby landmark name, and the like at the current location. If the route passes through characteristic terrain, terrain information may be used as a keyword. As the keyword, any keyword such as the name specified by the user can be used. In addition, the profile (gender, age, hobby, etc.) of the person riding in the vehicle may be set as a keyword. For example, if multiple people are on board, the keyword may be determined based on a common profile. Furthermore, The purpose of the live may be a direct keyword.

When extracting keywords, for example, a database that associates the original word with the keyword extracted based on the word, such as a destination name or a tourist spot on the route, may be used. This database may be provided in a memory area provided in a ROM or RAM, or a dedicated storage unit may be provided. Also, set up a database on one external server, etc., and use the communication unit 508 to obtain data from this external server as appropriate.

[0091] Next, it is determined whether or not the time information is taken into consideration (step S604). The determination as to whether or not the power in consideration of the time information may be made based on the setting in the reproduction condition storage unit 515, for example. If it is determined that the time information is considered (step S604: Yes), the time information is acquired (step S605). If it is determined that the time information is not considered! (Step S604: No), the process proceeds to Step S606.

Further, it is determined whether or not weather information is taken into consideration (step S606). The determination as to whether or not the power considers the weather information may be made based on the setting in the reproduction condition storage unit 515, for example. If it is determined that the weather information is considered (step S606: Yes), the weather information is acquired (step S607). If it is determined that the weather information is not considered! (Step S606: No), the process proceeds to Step S608.

Next, it is determined whether there is corresponding content (step S608). In step S608, if it is determined in step S604 that the time information is considered, it is determined whether there is a corresponding content based on the information on the destination or the information on the route and the time information. In step S608, if it is determined in step S606 that the weather information is considered, it is determined whether or not the corresponding content has power based on the information on the destination or the information on the route and the weather information. In step S608, for example, the video data in the content may be analyzed, and it may be determined whether or not the extracted keyword is matched based on the analyzed video data.

[0094] Specifically, in step S608, for example, if the content is a recorded program that has been televised on television, the program title indicated by the EPG program guide and the wording in the program description text are used. It is determined whether or not the force matches the extracted keyword. In addition, it is possible to determine whether or not the power matches the extracted keyword by using data such as a title and a recording date that are directly attached to the content or disabled during recording. In addition, it is also possible to determine whether or not the card matches the extracted key word by using a telop or audio word included in the content. It may be determined whether or not the extracted keyword is matched by searching the Internet information related to the content.

If it is determined in step S608 that there is no content including the extracted keyword (step S608: No), the processing is ended as it is. On the other hand, when it is determined that there is content including the extracted keyword (step S608: Yes), the content including the extracted keyword is acquired (step S609). Then, a reproduction schedule list is created using the acquired content as the content to be reproduced (step S610). In step S610, for example, if the content is acquired using keywords based on the facility name, address name, genre name, nearby landmark name, etc. of the current location, each content is included in the guidance route! Then, a reproduction schedule list is created so as to be reproduced in the order of arrival (passing).

FIG. 7 is a flowchart for explaining a processing procedure performed when content is reproduced. The process shown in FIG. 7 first waits until it is determined that a reproduction schedule list has been created (step S701: No). If it is determined that the reproduction schedule list has been created (step S701: Yes), it is determined whether or not the vehicle engine is running (step S702). If it is determined that the vehicle engine is not powered (step S702: No), the process ends.

If it is determined that the vehicle engine is active (step S702: Yes), it is determined whether route guidance is being performed (step S703). If it is determined that the route is not being guided! / (Step S703: No), the listed content is reproduced based on the reproduction schedule list (step S704).

If it is determined that the route is being guided (step S703: Yes), the playback start time of the listed content is calculated based on the playback schedule list (step S705). In step S705, when content related to the destination or waypoint is played, the vehicle is moved so that the content is played near the destination or waypoint. The time to start playing the content is calculated in consideration of the situation. In step S705, a program determined using keywords such as the name of a facility, address name, genre name, landmark name, etc. on or near the route on which the route is routed depends on the time required to view the program. Then, the playback start time is calculated so that the power playback starts for the required viewing time from the scheduled time of arrival at the relevant facility.

[0099] Based on the calculated time, it waits until it is determined that it is time to start playing the content (step S706: No). In step S706 in FIG. 7, “Reproduction start time?” Is described. If it is determined that it is time to start playing the content (step S706: Yes), the process proceeds to step S704 and the corresponding content is played.

[0100] By the way, in route guidance, for example, due to changes in the situation such as traffic congestion on the route used for guidance, the estimated time of arrival to the destination or the time to pass through the route It is considered that there is a difference between the time when the start of the route is started and the route is being guided. The navigation device according to the present embodiment has the following when the estimated arrival time to the destination or the time for passing through the route deviates between when the route guidance is started and during the route guidance. Execute the process.

[0101] FIG. 8 is a flowchart for explaining the processing procedure performed when the reproduction schedule list is updated. The process shown in FIG. 8 waits until it is determined that there is a change in the estimated arrival time to the destination or the transit time at the waypoint (step S801: No). In FIG. 8, the process of step S801 is described as “Did the arrival Z scheduled passage time change?”.

[0102] If it is determined that the estimated arrival time to the destination or the estimated transit time at the waypoint has changed (Step S801: Yes), it is determined whether or not to consider the time information (Step S802). The determination as to whether or not to consider the timing information may be made based on the setting in the reproduction condition storage unit 515, for example, as in the processing in step S604 in FIG. If it is determined that the time information is considered (step S802: Yes), the time information is acquired (step S803). If it is determined that the time information is not taken into account! (Step S 8 02), the process proceeds to step 3804. [0103] Next, it is determined whether or not weather information is taken into consideration (step S804). The determination as to whether or not the power is in consideration of the weather information may be made based on the setting in the reproduction condition storage unit 515, for example, similarly to the processing in step S606 in FIG. If it is determined that the weather information is considered (step S804: Yes), the weather information is acquired (step S805). If it is determined that the weather information is not considered (step S804: No), the process proceeds to step S806.

Then, it is determined whether or not there is content including the extracted keyword (step S806). In step S806, if it is determined in step S802 that the time information is taken into consideration, it is determined whether there is content including the extracted keyword based on the information on the destination or the route, and the time information. To do. In step S802, if it is determined in step S804 that the weather information is considered, whether there is content including the extracted keyword based on the information on the destination or the route and the weather information. Judge whether or not.

If it is determined in step S806 that there is no content including the extracted keyword (step S806: No), the processing is ended as it is. On the other hand, when it is determined that there is content including the extracted keyword (step S806: Yes), new content including the extracted keyword is acquired (step S807). The acquired new content is added to the playback schedule list as playback content, and the playback schedule list is updated (step S808). In FIG. 8, “reproduction schedule list creation (update)” is described as the process of step S808.

As described above, according to the navigation device of the present embodiment, the content to be reproduced is determined based on the information on the destination or the information on the route to the destination searched based on the map information. Then, the determined content is acquired, and the obtained content is reproduced. As a result, it is possible to reproduce the content related to the destination or the route without causing the user to perform a troublesome search. Specifically, for example, when a historical site or the like is a destination, the user can obtain knowledge in advance by reproducing the content related to the historical site.

[0107] According to the navigation device of the present embodiment, the information on the destination or the route. Content to be reproduced is determined based on the information on the date and time when the route is selected and the information on at least one of the date and time. As a result, it is possible to play back content that is related to the destination or route and also related to the date and time when the route is selected. Specifically, for example, when an event is held at the destination on the day the route is selected, the user knows in advance that the event will be held by playing content related to this event. Even without it, it will be possible to know the events that will be held at the destination and their contents. In other words, entertainment provided to the user can be improved.

[0108] Also, according to the navigation device of the present embodiment, the content to be reproduced is determined based on the information on the destination or the information on the route and the information on the weather when the route is selected. The As a result, it is possible to play back content that is related to the destination or route and also related to the weather when the route is selected. Specifically, for example, when the route when a route with a scenic spot as the destination is selected is rainy, the content such as a program that broadcasts the spot in the rainy spot of the scenic spot is played. The one can enjoy sightseeing only in rainy weather. That is, the entertainment property provided to the user can be improved.

[0109] According to the navigation device of the present embodiment, the information on the destination or the information on the route and the information on at least one of the date and time when the route guidance is performed. Based on this, the content to be played is determined. As a result, it is possible to play back content that is related to the destination or route and also related to the date and time when the route is being guided.

[0110] Specifically, for example, due to the occurrence of traffic congestion, the estimated arrival time at the destination is changed during the route guidance, compared to the estimated arrival time at the destination when the route guidance was started. Can be considered. In the present embodiment, even when such a change occurs during route guidance, content suitable for each situation can be reproduced according to the change in the road situation. As a result, entertainment provided to the user can be improved.

[0111] Further, according to the navigation device of the present embodiment, information or a route regarding the destination is displayed. The content to be played is determined based on the information on the weather and the information on the weather when the route guidance is being performed. As a result, it is possible to play back content that is related to the destination or route and also related to the weather when the route is being guided.

Specifically, for example, it is assumed that the content is determined based on the weather at the destination at the time when the route guidance is started. After that, the weather changes, and the weather at the destination when the route guidance is started may be different from the weather at the destination during the route guidance. In the present embodiment, content suitable for the weather at that time can be reproduced according to changes in the weather during route guidance. As a result, entertainment provided to the user can be improved.

In addition, according to the navigation device of the present embodiment, the content to be played back is determined based on the extracted information about the destination or the information about the route. As a result, content directly related to the destination or route can be played, and the quality of entertainment provided to the user can be further improved.

FIG. 9 is an explanatory diagram showing an example of the data structure of content. The content 900 is composed of video data 901, audio data 902, and incidental data 903. The video data 901 and the audio data 902 are associated with each other so that the timing of the content 900 matches each other. The incidental data 903 indicates a keyword characterizing the content 900, a time required for reproduction, and the like. In step S608 of FIG. 6, it is determined whether or not a keyword is included in the content 900 based on each auxiliary data 903 in the plurality of contents 900. For example, if the content 900 is a movie or a drama, a representative performer can be indicated by the accompanying data 903.

[0115] For example, if the content 900 is a recording of a program broadcast on television, the date and time when the content 900 was recorded, representative performers, EPG data, etc. may be indicated by the accompanying data 903. Is possible. The power EPG (Electronic Program Guide), which is a well-known technique and need not be described, is a system that displays on the TV screen the EPG sequence table sent using a gap in radio waves. EPG is different from normal TV programs The point is that the layout is done on the receiver side. The program table displayed using EPG differs depending on the TV (or TV setting) that receives the radio wave.

As described above, according to the navigation device of the present embodiment, the content determined based on the information on the destination or the information on the route to the destination is reproduced. This makes it possible to play content related to the destination or route before arriving at the destination without causing the user to perform a troublesome search. In response to this, the user can, for example, improve the way of spending at the destination and the travel time to the destination. Thus, according to the navigation apparatus of the present embodiment, it is possible to improve the entertainment property provided to the user.

[0117] If the content to be played is determined based on information on the destination or information on the route and information on at least one of the date and time when the route is selected, the content related to the destination or route Content that is related to the date and time when the route is selected. Thus, for example, the user can enjoy the unique way of enjoying the season at the destination. Thus, according to the navigation device of the present embodiment, entertainment provided to the user can be improved.

[0118] When the content to be played is determined based on the information on the destination or the route and the information on the weather when the route is selected, the content to be played is related to the destination or the route and The content related to the weather when is selected can be played. Thereby, the user can enjoy how to enjoy according to the weather at the time, for example, at the destination. Thus, according to the navigation device of the present embodiment, it is possible to improve the entertainment property provided to the user.

[0119] In addition, if the content to be played is determined based on information on the destination or information on the route and information on at least one of the date and time when the route guidance is performed, It is possible to play content that is related to the ground or route and related to the date and time when the route is being guided.

[0120] Although the road conditions change from moment to moment, the route guidance is performed, and the content to be played is determined based on the information that is related to at least the date and time. The content suitable for each situation can be reproduced according to the change of the situation. As a result, even if the time of arrival at the destination is different from the expected arrival time when the route guidance starts, for example, due to traffic jams, the user is held at the time at the destination. Like watching an event, you can enjoy the unique way of enjoying the time. Thus, according to the navigation device of the present embodiment, it is possible to improve the entertainment property provided to the user.

[0121] If the content to be played is determined based on the information on the destination or the route, and the information on the weather when the route is being guided, it is related to the destination or the route. It is possible to play content that is also related to the weather during route guidance. This means that, for example, when moving to a destination, the weather force at the destination may differ from the forecast at the time of departure. How to enjoy can be considered while moving. Thus, according to the navigation device of the present embodiment, it is possible to improve the entertainment property provided to the user.

[0122] If the content to be played is determined based on the keywords extracted from the information about the destination or the information about the route, the content directly related to the destination or the route may be played. it can. As a result, it is possible to improve the entertainment property provided to the user.

Note that the content playback method realized by the navigation device described in the present embodiment can also be realized by executing a content playback program prepared in advance on a computer such as a personal computer or a workstation. be able to. In this embodiment, the content reproduction program is recorded on the HD as a recording medium, but the present invention is not limited to this. The content reproduction program only needs to be recorded on a computer-readable recording medium such as a flexible disk, CD-ROM, MO, and DVD so that the computer can read the program. Thus, the content reproduction program recorded on the recording medium can be executed by reading the recording medium force by the computer. The content reproduction program is not limited to the one recorded on the recording medium, but via a network such as the Internet. Even transmission media that can be distributed

Claims

The scope of the claims

[1] A route search means for searching for a route to the destination based on the map information,

Determining means for determining content to be reproduced based on information on the destination or information on the route searched by the route searching means;

A content reproduction apparatus comprising: content acquisition means for acquiring the content determined by the determination means; and reproduction means for reproducing the content acquired by the content acquisition means.

[2] selection means for selecting a route searched by the route search means;

Time information acquisition means for acquiring information related to at least one of the date and time when the route is selected by the selection means;

With

2. The content to be reproduced is determined based on the information on the destination or the information on the route and the information acquired by the time information acquisition unit. Content playback device.

[3] selection means for selecting a route searched by the route search means;

Weather information acquisition means for acquiring information relating to the weather when a route is selected by the selection means;

With

2. The content to be played back is determined based on the information on the destination or the information on the route and the information acquired by the weather information acquisition unit. Content playback device.

[4] Guidance means that performs route guidance using the route searched by the route search means, and obtains information related to at least one of the date and time when the route guidance is performed by the guidance means. Time information acquisition means;

With

[5] A guidance unit that performs route guidance using the route searched by the route search unit, and a weather information acquisition unit that acquires information on the weather when the route guidance is performed by the guidance unit,

[6] The determination unit may extract a keyword from information about the destination or information about the route, and determine content to be played based on the extracted keyword. 5. The content playback device according to any one of 5 above.

[7] A route search process for searching for a route to the destination based on the map information;

A determination step of determining content to be played based on information on the destination or information on the route searched by the route search step;

A content reproduction method comprising: a content acquisition step of acquiring the content determined by the determination step; and a reproduction step of reproducing the content acquired by the content acquisition step.

[8] A content playback program causing a computer to execute the content playback method according to claim 7.

[9] A computer-readable recording medium in which the content reproduction program according to claim 8 is recorded.