JP2011024117A - Program receiver, and program receiving method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a user comprehend a temporal transition with respect to the fact that to what degree a received program can be continued to be stably viewed. <P>SOLUTION: This program receiver 200 is equipped with a route acquisition portion 256 which acquires a moving route to a destination based on positional information showing a position of the program receiver 200, a moving section deriving portion 260 which derives a moving section where the program receiver 200 moves in the moving route by a broadcasting finish time of the program, a reception state extraction portion 262 which extracts a reception state of the program in the moving section from a reception state database, a program forecast image generation portion 264 which generates a program forecast image 350 showing a temporal transition of the reception state in the moving section of the program, and a display control portion 266 which displays the program forecast image 350 on a display 224. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a program receiving apparatus and a program receiving method for receiving a program in a mobile body.

  With the start of digital broadcasting, program receivers that receive digital broadcast waves and allow users to view programs have become widespread. In particular, an in-vehicle program receiving apparatus that allows a user to view a program even in a moving body such as a car or a train, and a portable program receiving apparatus are attracting attention.

  However, when a digital broadcast wave is received during movement using the above-described in-car or portable program receiving apparatus (hereinafter simply referred to as a program receiving apparatus), the reception state is frequently changed according to the change in the receiving position. Often changes. Therefore, although the user has viewed the program through the program receiving apparatus, the reception state may deteriorate during the process, and the user may be unable to view the program until the end.

  Therefore, a technique is disclosed in which the reception quality of a broadcast program is measured, and a route through which the program can be continuously viewed until reaching the destination is calculated and presented to the user (for example, Patent Document 1).

  In addition, a database indicating areas where digital broadcast waves can be received is stored in advance, and if the reception quality falls below the reference value, the moving path on which the moving body moves is compared with the database, and the receiving area on the moving path is Is also disclosed (for example, Patent Document 2), in which the required time from the current position to the receivable area is presented to the user.

  Furthermore, a technique is also disclosed in which a moving path along which a moving body moves is predicted and a digital broadcast wave reception rate at an arbitrary geographical point in the predicted moving path is presented to the user (for example, Patent Document 3).

JP 2007-74582 A JP 2006-279742 A JP 2003-274303 A

  In many cases, a user who moves by a mobile body does not move to view a program, but views a program following the movement. However, in the technique of Patent Document 1, since the route to the destination is calculated on the assumption that the reception of the program is maintained, the distance is significantly longer than the shortest route from the current position to the destination. Sometimes it becomes. Therefore, when the technique of Patent Document 1 is used, there arises a problem that the function of presenting the shortest route to the destination of the car navigation system cannot be effectively used.

  Moreover, since the technique of patent document 2 shows the receivable range in the movement path | route to the destination, the future receiving state of the program currently viewed cannot be shown to the user.

  Furthermore, in the technique of Patent Document 3, although the future reception state of the program being viewed can be presented to the user, a specific reception state at an arbitrary geographical point in the movement route is presented. When the moving speed changes due to traffic jams or the like, it has not been possible to present to the user how long the program being viewed can be viewed, and where the program will be difficult to view.

  Therefore, in view of such problems, the present invention provides a program receiving apparatus and a program receiving method capable of allowing a user to grasp a temporal transition of how stably a received program can be continuously viewed. The purpose is to provide.

  In order to solve the above problems, a program receiving apparatus of the present invention is a program receiving apparatus that receives a broadcast wave via an antenna, and a program receiving unit that receives a program through the broadcast wave, and a position of the program receiving apparatus. A position acquisition unit that acquires position information to be shown, a route acquisition unit that acquires a movement route to a destination based on the position information acquired by the position acquisition unit, and a movement section that moves by the broadcast end time of the program on the movement route A reception section extracting section for extracting a reception state in a movement section of a program from a reception state database in which a movable route and a reception state of a program on the route are associated with each other, and a movement of the program A program forecast image generating unit that generates a program forecast image indicating a time transition of a reception state in a section, and a display control unit that displays the program forecast image on a display. .

  The program receiving apparatus according to the present invention makes it possible for a user not to receive a specific program receiving state at an arbitrary geographical point in a moving route, but to change the time transition of the receiving state of a program in a moving section moving by the broadcast end time of the program. Present. Therefore, it is possible to present to the user the transition of the reception state corresponding to the elapsed time of the program to be received. Here, strictly speaking, the reception state of a program indicates the reception state of a broadcast wave that is broadcast from a broadcasting station and that carries the program.

  In addition, with the configuration in which the program forecast image indicating the time transition of the reception state during the program movement section is displayed on the display, the user can easily receive the signal at any location of the program to be received by simply viewing the display. Therefore, it is possible to easily and quickly grasp whether or not it is difficult to receive the image.

  The program forecast image may be a time axis graph showing a time transition of the reception state of the program up to the broadcast end time of the program.

  With such a configuration that represents time transitions on a time axis graph with high visibility, it is possible to allow the user to grasp through visual how much time it becomes difficult to receive a program when it is viewed.

  The program forecast image may be an icon indicating the reception state for each transition of the reception state of the program up to the broadcast end time of the program.

  With such a configuration that represents time transitions with icons having high visibility, the user can intuitively and easily grasp the transition of the future reception state of the received program simply by visually recognizing the display.

  The reception state database may be provided outside the program receiving device, and the reception state extraction unit may extract the reception state during the moving section of the program from the reception state database via the communication network.

  By providing a reception state database outside the program receiving device, for example, a separate device (external device), a plurality of program receiving devices that can communicate with the separate device respectively refer to the same reception state database and Can be updated. In this way, by sharing the reception state database among a plurality of program receiving devices including itself, the update frequency of the reception state database can be increased, and the time transition according to the actual (latest) reception state can be shown more Is possible.

  The reception state database may be different depending on the form of the antenna.

  The reception state of the broadcast wave varies depending on the shape of the antenna and the installation position. Therefore, by preparing a different reception state database depending on the form of the antenna, it is possible to acquire the reception state of the antenna included in the program receiving apparatus, that is, the reception state that matches the current state.

  In the reception state database, a divided section obtained by dividing a movable route by a predetermined section and a program reception state for each divided section may be associated.

  By dividing a movable route into predetermined sections and dividing it into divided sections, it is possible to individually obtain different reception states for each divided section, and the reception state database can hold the geographical transition of the reception state in detail. It becomes possible.

  The route acquisition unit acquires a travel route based on a travel route of one or a plurality of public transportations selected from a group of a railroad, a bus, an aircraft, and a ship, and the travel section deriving unit indicates an operation schedule on the travel route. Based on the operation schedule information, the movement section of the movement route up to the broadcast end time of the program may be derived.

  In the case of the above public transportation, the travel route and the operation schedule are determined in advance. Therefore, by using the operation schedule on the predetermined travel route, it is possible to easily derive the travel route of the travel route until the end of the program broadcast without considering the travel speed.

  In the reception state database, a movable route and the reception states of a plurality of programs are associated, and the reception state extraction unit also extracts the reception state of each program in the movement route from the reception state database, and performs display control. The unit may display the priority order of the programs on the display in the descending order of reception goodness based on the reception state of each program and the time during which the reception state continues.

  With the configuration in which the priority order of programs is displayed on the display in the order of high reception goodness, the user can grasp a program that can be viewed continuously with stable reception sensitivity only by visually recognizing the display. Here, strictly speaking, the reception state of a plurality of programs indicates the reception state of each of a plurality of broadcast waves that are broadcast from a plurality of broadcasting stations and carry each program.

  In the reception state database, a movable route and the reception states of a plurality of programs are associated, and the reception state extraction unit also extracts the reception state of each program in the movement route from the reception state database, and performs display control. The unit may display the priority order of the program on the display based on the broadcast end time for each program and the estimated arrival time at the destination.

  With this configuration, the user can grasp the program to be viewed and the reception state of the program only by visually recognizing the display until the user arrives at the destination.

  In the reception state database, a movable route and the reception states of a plurality of programs are associated, and the reception state extraction unit also extracts the reception state of each program in the movement route from the reception state database, and performs display control. The unit may display the priority order of the programs on the display according to a predetermined genre order.

  For example, news programs, variety programs, etc., in which a program is composed of a plurality of topics, are completed for each topic, so that even if viewing on the way becomes difficult, the user is less likely to feel dissatisfied. However, if it becomes difficult to view a drama program or a movie program that develops due to the accumulation of events, the user cannot understand the program contents from the middle and feels dissatisfied. Therefore, the reception status is displayed by the configuration in which the priority of the program is displayed on the display according to the order of the predetermined genre along with the reception status, and the priority of the program including a plurality of independent short-time topics is increased. Program selection in situations where there is a possibility of deterioration can be facilitated.

  In order to solve the above problems, another program receiving apparatus of the present invention is a program receiving apparatus that receives a broadcast wave via an antenna, and receives a program broadcast by a plurality of broadcast stations through the broadcast wave. A position acquisition unit that acquires position information indicating the position of the program receiving device, a route acquisition unit that acquires a movement route to a destination based on the acquired position information, and a predetermined genre order And a display control unit for displaying the priority order of programs broadcasted by the broadcast station on a display.

  For example, news programs and variety programs whose programs are composed of a plurality of topics are complete for each topic, so even if they cannot be viewed halfway, the user is less likely to feel dissatisfied. However, if a drama program or a movie program that develops due to the accumulation of events cannot be viewed halfway, the user cannot understand the contents of the program from the middle and feels dissatisfied. Therefore, according to a predetermined genre order, the priority order of programs broadcasted by the broadcasting station is displayed on the display, and the priority order of the program composed of a plurality of independent short-time topics is increased. However, it is possible to reduce the possibility of the user selecting a program that may not end although the program arrives.

  In order to solve the above problems, a program receiving method of the present invention is a program receiving method using a program receiving device that receives a broadcast wave via an antenna, and receives a program through the broadcast wave. Obtaining location information indicating the location, obtaining a travel route to the destination based on the obtained location information, deriving a travel section that moves by the broadcast end time of the program on the travel route, and a movable route, From the reception state database that correlates with the reception state of the program on the route, the reception state of the program in the moving section is extracted, and a program prediction image indicating the time transition of the reception state in the moving section of the program is generated, and the program prediction image Is displayed on a display.

  The above-described components based on the technical idea of the program receiving apparatus and the description thereof can be applied to the program receiving method.

  As described above, the present invention makes it possible for the user to grasp the temporal transition of how stably the received program can be continuously viewed.

It is the block diagram which showed the outline of the program receiving system concerning 1st Embodiment. It is a functional block diagram showing a schematic structure of a program receiving device concerning a 1st embodiment. 1 is an external view of a program receiving device according to a first embodiment. It is explanatory drawing for demonstrating an example of a reception status database. It is explanatory drawing for demonstrating an example of the sensitivity division table concerning 1st Embodiment. It is explanatory drawing for demonstrating the process of a route acquisition part, a movement area derivation | leading-out part, and a receiving condition extraction part. It is explanatory drawing for demonstrating an example of a program forecast table. It is explanatory drawing for demonstrating the process of the path | route acquisition part concerning 1st Embodiment, a movement area derivation | leading-out part, a reception state extraction part, and a display control part. It is explanatory drawing for demonstrating the icon which a program forecast image generation part produces | generates. It is explanatory drawing for demonstrating the time-axis graph or icon which the display control part displayed on the display. It is the flowchart which showed the specific process of the program receiving method concerning 1st Embodiment. It is the flowchart which showed the specific process in case a display control part displays an icon as a program forecast image in a program forecast display step. It is the functional block diagram which showed the schematic structure of the program receiver concerning 2nd Embodiment. It is explanatory drawing for demonstrating the process of the display control part concerning 2nd Embodiment. It is explanatory drawing for demonstrating an example of the program genre table concerning 2nd Embodiment. It is explanatory drawing for demonstrating an example of the guide message table concerning 2nd Embodiment. It is explanatory drawing for demonstrating the process which a display control part performs with reference to a program genre table. It is the flowchart which showed the specific process of the program receiving method concerning 2nd Embodiment. It is a flowchart for demonstrating an example of the process of a priority determination step. It is a flowchart for demonstrating the other example of a process of a priority determination step. It is the functional block diagram which showed the schematic structure of the program receiver concerning 3rd Embodiment. It is explanatory drawing for demonstrating an example of the operation schedule information concerning 3rd Embodiment. It is the functional block diagram which showed the schematic structure of the program receiver concerning 4th Embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(First embodiment: program receiving system 100)
FIG. 1 is a block diagram showing an outline of a program receiving system 100 according to the first embodiment. As shown in FIG. 1, the program receiving system 100 includes a program receiving device 200 and transmitting stations 102 (102a, 102b).

  In the present embodiment, a car navigation device installed in the vehicle 104 will be described as an example of the program receiving device 200. However, a mobile phone, a personal handy phone system (PHS), a notebook personal computer, a PDA (Personal Digital Assistant) ), Various electronic devices having a display and capable of wireless communication, such as a digital camera, a music player, a portable TV, a game device, a DVD (Digital Versatile Disk) player, and a remote controller, can be used as the program receiving device.

  In the program receiving system 100, when a user (passenger) in the vehicle 104 attempts to view a program through the program receiving device 200, the program receiving device 200 is connected to one or more transmitting stations 102 (102a in FIG. 1). , 102b) receives broadcast waves from a plurality of broadcast stations. Then, the program receiving apparatus 200 encodes one of the received broadcast waves into an image (program) that can be viewed by the passenger and outputs the encoded image to a display or an audio output unit. Thus, the passenger can watch the program while moving on the vehicle 104. Here, the program is composed of text information such as a video stream, an audio stream, and a subtitle stream, which are prepared for each broadcasting station, multiplexed on the time axis, and metadata.

  However, when the vehicle 104 moves and reaches the mountain surrounded by the mountain 106 or enters the tunnel 108, the program receiving apparatus 200 receives the broadcast waves of a plurality of broadcast stations transmitted from, for example, the transmission station 102b. May change. Therefore, the passenger may watch the program through the program receiving apparatus 200, but the reception state may deteriorate in the middle, and there is a fear that the passenger may not be able to watch the program until the end.

  In view of this, the present embodiment provides a program receiving apparatus 200 and a program receiving method that allow a passenger to grasp the temporal transition of how stably a received program can be continuously viewed. For the purpose. Below, the structure of the program receiver 200 is demonstrated.

(Program receiving device 200)
FIG. 2 is a functional block diagram showing a schematic configuration of the program receiving apparatus 200 according to the first embodiment, and FIG. 3 is an external view of the program receiving apparatus 200 according to the first embodiment. As shown in FIG. 2, the program receiving device 200 includes a central control unit 210, a device memory 212, a program receiving unit 214, a position acquisition unit 216, a wireless communication unit 218, a speed deriving unit 220, and an operation unit. 222, a display 224, and an audio output unit 226.

  The central control unit 210 is constituted by a semiconductor integrated circuit including a central processing unit (CPU) and a signal processing unit (DSP: Digital Signal Processor), and manages and controls the entire program receiving apparatus 200 using a predetermined program.

  The device memory 212 includes a RAM, a flash memory, an HDD (Hard disk drive), and the like. Note that the HDD is precisely an apparatus, but for the sake of convenience of explanation, it is treated as synonymous with a recording medium in this description. In the present embodiment, the device memory 212 includes a reception state database that associates map information for deriving a movement route, a movable route, and reception states of a plurality of programs (broadcast waves) on the route, and an antenna 202. A sensitivity classification table that associates the form with the sensitivity classification, and a program forecast table that associates the reception state with the program forecast image segment are stored in advance. Here, in the map information, a movable route, a road type of the route (for example, a general road, a toll road, a highway, etc.) and an average speed predicted for each road type are associated. The predicted average speed is, for example, 40 km / h for general roads and 80 km / h for toll roads and highways. The reception status database, sensitivity classification table, and program forecast table will be described in detail later.

  The program receiving unit 214 receives a broadcast wave transmitted from the transmitting station 102 via the antenna 202. The broadcast wave includes broadcast waves (transport streams) of a plurality of broadcast stations. In the present embodiment, the program receiving unit 214 includes a tuner circuit and an OFDM (Orthogonal Frequency Division Multiplexing) demodulator, and acquires EPG (Electronic Program Guide) data from a broadcast wave received via the antenna 202. Thus, program information is acquired, or a transport stream of an arbitrary broadcasting station is acquired (tuned) in accordance with control of a program selection unit described later, and a video stream and an audio stream of the program are acquired.

  The program information includes a broadcast station name, a physical channel name, a program name, a program start time, a program time length, a genre, and the like, and the program receiving unit 214 acquires program information of a plurality of broadcast stations.

  Further, in the present embodiment, the program receiving unit 214 calculates the reception level (reception sensitivity), the bit error rate (BER), and the like of the broadcast waves of a plurality of broadcast stations transmitted by the transmission station 102, and the values. Is comprehensively determined to derive the reception state.

  The position acquisition unit 216 acquires position information indicating the position of the program receiving device 200. In the present embodiment, the position acquisition unit 216 is based on a radio signal transmitted from a GPS (Global Positioning System) satellite 110, and position information (for example, longitude, latitude, altitude of the vehicle 104 on which the program receiving device 200 is mounted). Information).

  The wireless communication unit 218 establishes wireless communication with the base station 112 according to the communication form of the program receiving device 200, and receives traffic jam information, accident information, etc. from the external server 116 connected to the base station 112 via the communication network 114. Receive.

  The speed deriving unit 220 derives the moving speed of the program receiving apparatus 200 using the moving speed of the vehicle 104 on which the program receiving apparatus 200 is mounted. For example, the speed deriving unit 220 receives a vehicle speed pulse (for example, a signal for each predetermined rotation angle of the traveling tire of the vehicle 104) output by a vehicle speed pulse oscillator (not shown) mounted on the vehicle 104, and this vehicle speed. The moving distance of the vehicle 104 is detected based on the pulse. Then, the speed deriving unit 220 derives the moving speed based on the moving distance of the vehicle 104 in unit time. Such a moving speed may be derived using an average speed in a predetermined time.

  The speed deriving unit 220 is not limited to the vehicle speed pulse, and integrates the acceleration acquired through the acceleration sensor or uses the moving distance per unit time from the position indicated by the position information acquired by the position acquiring unit 216. The moving speed of the vehicle 104 may be derived.

  The operation unit 222 includes a switch such as a keyboard, a cross key, and a joystick, a touch panel installed on the display surface of the display 224, and the like, and an operation input for starting viewing of the program (hereinafter simply referred to as viewing start input). ) And the like. Here, the viewing start input is an operation input for turning on the power when the power of the program receiving apparatus 200 is off, or for selecting a program desired to be watched when the power is on. Indicates the operation input.

  The display 224 includes a liquid crystal display, an organic EL (Electro Luminescence) display, and the like, and according to control of a display control unit described later, a video stream of a program received by the program receiving unit 214, a program forecast image described later, and device memory The map information held in 212 is displayed.

  The audio output unit 226 includes a speaker, and outputs a program audio stream received by the program receiving unit 214 and audio indicating a destination direction of the vehicle 104 according to control of the audio control unit described later, and an operation unit. For example, a voice for guiding the operation of 222 is output.

  In the present embodiment, the central control unit 210 includes the voice control unit 250, the destination setting unit 252, the route deriving unit 254, the route acquiring unit 256, the program selecting unit 258, the moving section deriving unit 260, and the reception state extracting unit. 262, a program forecast image generation unit 264, and a display control unit 266 also function.

  The audio control unit 250 encodes the audio stream of the program received by the program receiving unit 214 and causes the audio output unit 226 to output the encoded audio stream.

  The destination setting unit 252 sets a destination in response to an operation input through the operation unit 222 by the passenger.

  The route deriving unit 254, at the time when the destination is set, the optimal travel route that connects the position indicated by the position information acquired by the position acquisition unit 216 and the set destination, for example, the arrival time to the destination The shortest travel route of the vehicle 104 is calculated based on the map information held in the device memory 212. Also, the route deriving unit 254 recalculates the moving route to the destination when the position information indicating the position of the program receiving device 200 acquired by the position acquiring unit 216 deviates from the already derived moving route. . Then, the display control unit 266 notifies the passenger of the current position of the vehicle 104 and the calculated travel route to the destination. With this configuration, the passenger can quickly and safely reach the destination by moving according to the instruction of the program receiving device 200.

  The route acquisition unit 256 acquires the travel route of the vehicle 104 derived by the route deriving unit 254.

  When the operation unit 222 receives an input to start viewing one program by the passenger, the program selection unit 258 selects a program corresponding to the viewing start input from the plurality of programs received by the program receiving unit 214.

  The movement section deriving unit 260 is the time at which the passenger tried to view the program (in this embodiment, the time at which the operation unit 222 received an input to start viewing of one program by the passenger) and the position information at that time. And the broadcast end time of the program received by the program receiving unit 214 through the selection by the program selecting unit 258 and the vehicle speed (the moving speed derived by the speed deriving unit 220 or the predicted average speed associated with the map information). Based on the above, a movement section that moves by the broadcast end time of the program on the movement route is derived. Here, the broadcast end time is derived by adding the program time length to the program start time of the program information acquired by the program receiving unit 214. In this embodiment, the moving section deriving unit 260 also uses traffic information, accident information, and the like received by the wireless communication unit 218 such as VICS (Vehicle Information and Communication System), and considers the increase and decrease of the moving speed in the vicinity. Thus, it is possible to derive a movement section that moves by the program broadcast end time on the movement route.

  In the present embodiment, the movement section deriving unit 260 derives the movement section for a program that is shorter than the movement path, that is, for a program that ends before arrival at the destination, but the present invention is not limited to this. Even when the moving section is longer, that is, when the destination arrives before the end of broadcasting, the moving section can be derived. In this case, the entire movement route may be a movement section.

  The reception state extraction unit 262 extracts the reception state during the moving section of the program received by the program reception unit 214 from the reception state database held in the device memory 212.

  FIG. 4 is an explanatory diagram for explaining an example of the reception state database 300.

  As shown in FIG. 4A, each movable route 280 included in the map information is divided by a predetermined section, and the reception state is shown for each divided section (divided section 302). As shown in FIG. 4B, the reception status database 300 carries the divided sections 302 and the reception status of a plurality of programs for each divided section 302, that is, each program broadcast from a plurality of broadcasting stations 304. The reception state of each of the plurality of broadcast waves is associated.

  For example, the reception state of the program is determined using the number of times the broadcast wave cannot be received per unit distance in the divided section 302, the ratio of the reception disabled time, and the like. In the present embodiment, when the program receiving apparatus 200 moves at a legal speed, a reception state (hereinafter referred to as continuous stable reception U) in which a program can be stably received for a predetermined time (for example, 5 minutes) or longer and a predetermined time Within three reception states: a reception state in which a program can be intermittently received (hereinafter referred to as intermittent reception M), and a reception state in which a program cannot be received for a predetermined time or longer (hereinafter referred to as reception impossible L). Are associated with each divided section 302.

  By subdividing a movable route into predetermined sections and dividing it into divided sections 302, it is possible to individually acquire different reception states for each divided section 302, and the reception state database 300 holds in detail the geographical transition of the reception state It becomes possible to do.

  Here, when there are a plurality of transmitting stations 102 that transmit the broadcast waves of the same broadcasting station 304 that broadcasts the same program as shown in FIG. 1, the program receiving unit 214 adjusts its reception sensitivity during movement. In response, the transmitting station 102 that receives the program may be switched. Even if the transmitting station 102 is switched in this way, if the program can be stably received for a predetermined time or more including the switching time, the reception state is set to continuous stable reception U, and the program can be received intermittently within the predetermined time. If there is, the reception state is set to intermittent reception M.

  In the present embodiment, the device memory 212 holds a plurality of different reception state databases 300 corresponding to the form of the antenna 202.

  FIG. 5 is an explanatory diagram for explaining an example of the sensitivity classification table 320 according to the first embodiment. As shown in FIG. 5, for example, the antenna 202 is classified into a diversity antenna installed outside the vehicle, a vehicle window antenna, a diversity antenna installed in the vehicle, a single rod antenna, and the like. The sensitivity classification 320a and the antenna form 320b are associated with each other. The reception state of the program varies depending on the shape of the antenna 202, the installation position, and the like. Therefore, the device memory 212 holds a plurality of different reception state databases 300 for each sensitivity category 320a associated with the form of the antenna 202, so that the reception state extraction unit 262 receives the antenna 202 included in the program reception device 200. The state, that is, the reception state suitable for the current state can be acquired.

  In the present embodiment, the reception status database 300 is held in the device memory 212, but is not limited thereto, and is a separate device (for example, a device that can be connected to the outside of the program receiving device 200, for example, through the wireless communication unit 218). The reception state database 300 may be held in the external server 116), and the reception state extraction unit 262 may refer to the reception state database 300 held by a separate device through the wireless communication unit 218.

  With the configuration in which the reception status database 300 is provided outside the program receiving device 200, for example, a separate device (external device), the plurality of program receiving devices 200 that can communicate with the separate device have the same reception status database. 300 can be referenced and updated. Thus, by sharing the reception state database 300 among a plurality of program receiving apparatuses 200 including itself, the update frequency of the reception state database 300 can be increased, and the time transition according to the actual (latest) reception state can be increased. Can be shown.

  Further, the reception state database 300 may be updated using the reception level (reception sensitivity) of broadcast waves of a plurality of broadcast stations 304 transmitted by the transmission station 102, BER, etc., derived by the program receiving unit 214. . With this configuration, the reception state of the reception state database 300 can be updated to the latest value.

  FIG. 6 is an explanatory diagram for explaining processing of the route acquisition unit 256, the movement section derivation unit 260, and the reception state extraction unit 262. As shown in FIG. 6, the route acquisition unit 256 has a moving route 312 (shown by hatching in FIG. 6) that connects the position indicated by the position information acquired when the destination is set and the set destination 310. ), Get.

  The moving section deriving unit 260 then broadcasts the program received by the program receiving unit 214, the time at which the program was viewed (hereinafter simply referred to as the viewing start time), position information at that time (current position 314), and the program receiving unit 214. Based on the end time and the vehicle speed, a movement section 316 (indicated by a thick black line in FIG. 6) that moves up to the broadcast end time of the program on the movement route 312 is derived.

  Furthermore, as illustrated in FIG. 6, the reception state extraction unit 262 extracts the reception state 318 of the program for each divided section 302 in the movement section 316 from the reception state database 300.

  The program forecast image generation unit 264 generates a program forecast image by referring to the reception status of each divided section in the program movement section extracted by the reception status extraction unit 262 and the program forecast table stored in the device memory 212. To do.

  Here, the program forecast image is a time axis graph showing the time transition of the program reception state from the viewing start time to the program broadcast end time, or the program reception state transition from the viewing start time to the program broadcast end time. It is an icon which shows a reception state for every.

  FIG. 7 is an explanatory diagram for explaining an example of the program forecast table 330. As shown in FIG. 7, the program forecast table 330 according to the present embodiment includes a program forecast image segment (hereinafter simply referred to as a graph segment 332) and an icon for generating a time axis graph in a reception state 318. Are associated with program forecast image segments (hereinafter simply referred to as icon segments 334).

  The program forecast image generation unit 264 extracts the graph segment 332 from the program forecast table 330 based on the reception state 318 in the movement section 316 of the program extracted by the reception state extraction unit 262, and concatenates them in time series. Generate a time axis graph. Further, the program forecast image generation unit 264 extracts the icon segments 334 from the program forecast table 330 based on the reception status 318 in the movement section 316 of the program extracted by the reception status extraction unit 262, and combines them in time series. To generate an icon.

  FIG. 8 is an explanatory diagram for explaining processing of the route acquisition unit 256, the movement section derivation unit 260, the reception state extraction unit 262, and the display control unit 266 according to the first embodiment. As shown in FIG. 8A, the route acquisition unit 256 is set with the position (set position) indicated by the position information acquired by the route deriving unit 254 and acquired at the time when the destination is set. A travel route 312 that connects to 310 is acquired.

  As shown in FIG. 8B, the movement section deriving unit 260 has a viewing start time (current time 336), position information at that time (current position 314), and a program received by the program receiving unit 214. Based on the broadcast end time 338 and the vehicle speed, a movement section 316 that moves up to the broadcast end time 338 of the program on the movement path 312 is derived. Here, the movement section derivation unit 260 derives the movement section 316 based on the broadcast end time of the currently receivable program, but is not limited to this, and the broadcast section derivation unit 260 determines the broadcast reception time of the program that can be received in the future. A movement section may be derived on the basis of this. As illustrated in FIG. 8C, the reception state extraction unit 262 extracts the reception state 318 of the program for each divided section in the movement section 316.

  Then, as shown in FIG. 8 (d), the program forecast image generation unit 264 reads from the program forecast table 330 shown in FIG. 7 based on the reception status 318 in the movement section 316 of the program extracted by the reception status extraction unit 262. A graph segment 332 is extracted and connected in time series to generate a time axis graph 340. Here, since the reception states 318 of the divided section A1 and the divided section A2 in the moving section 316 are both continuous stable reception U, they are collectively defined as one graph segment 332a.

  In the present embodiment, the program forecast image generation unit 264 displays the duration of the same reception state 318, for example, “about 20 minutes” in the case of continuous stable reception U, as shown in FIG. A time axis graph 340 is generated by attaching to 332a. In the example illustrated in FIG. 8D, the program forecast image generation unit 264 attaches the duration of each reception state 318 (here, continuous stable reception U and intermittent reception M) to the time axis graph 340. However, the present invention is not limited to this, and only the duration of the best reception state may be attached, or only the time axis graph 340 may be generated without attaching the duration.

  How long it becomes difficult to receive the program received by the program receiving unit 214 as the program forecast image generating unit 264 shows the time transition in the time axis graph 340 having high visibility as the program forecast information. Etc. can be made to grasp a passenger visually.

  Further, as shown in FIG. 8E, the program forecast image generation unit 264 is based on the reception status 318 in the movement section 316 of the program extracted by the reception status extraction unit 262, from the program prediction table 330 shown in FIG. The icon pieces 334 are extracted to generate icons 342 arranged side by side in time series.

  FIG. 9 is an explanatory diagram for explaining an icon 342 generated by the program forecast image generation unit 264. When the program reception state 318 extracted by the reception state extraction unit 262 is the same, that is, when there is no change in the program reception state 318 during the movement section 316, the program forecast image generation unit 264 changes to the reception state 318. Only the associated one icon segment 334 is extracted to generate an icon 342. FIG. 9A shows a case where the reception state 318 in the program moving section 316 is continuously stable reception U. As shown in FIG. 7, there are two types of icon segments 334 associated with continuous stable reception U in the program forecast table 330 of this embodiment, and the program reception state 318 continues continuously in all moving sections 316. In the case of the stable reception U, as shown in FIG. 9A, the program forecast image generation unit 264 extracts an icon segment 334a indicating that the reception state is very good, and generates an icon 342a.

  Further, when the reception state 318 of the program changes during the movement section 316, the program forecast image generation unit 264 extracts the icon segment 334 associated with the reception state 318 and generates an icon 342 by combining them in time series. To do. FIG. 9B shows a case where the reception state 318 in the program moving section 316 changes from continuous stable reception U to reception incapable L. As shown in FIG. 9B, the program forecast image generation unit 264 extracts the icon segment 334b associated with the continuous stable reception U and the icon segment 334d associated with the unreceivable L, The icons 342b are generated in combination so that the transition of time can be visually recognized.

  Furthermore, when the reception state 318 of the program changes twice during the movement section 316, the program forecast image generation unit 264 extracts three icon segments 334 associated with the reception state 318 and combines them in time series. To generate an icon 342. Here, when the reception state 318 of the program changes three or more times during the movement section 316, the program forecast image generation unit 264 extracts all the icon segments 334 associated with the reception state 318 and represents them from among them. Three icon pieces 334 are selected and combined in time series to generate an icon 342. Here, the program forecast image generation unit 264 has one icon segment 334 associated with the latest reception state 318 and two icon elements associated with the two reception states 318 in order of the duration of the reception state 318. Three of the pieces 334 are selected. FIG. 9C shows a case where the reception state 318 in the moving section 316 of the program changes from continuous stable reception U to unreceivable L and then to intermittent reception M. As shown in FIG. 9C, the program forecast image generation unit 264 receives the icon segment 334 b associated with the continuous stable reception U, the icon segment 334 d associated with the unreceivable L, and the intermittent reception M. The associated icon segment 334c is extracted and combined in time series to generate an icon 342c.

  With the configuration in which the program forecast image generation unit 264 represents a time transition with an icon 342 with high visibility, the passenger only needs to visually recognize the display 224 to change the future reception state of the program received by the program reception unit 214. It becomes possible to grasp intuitively and easily.

  In the present embodiment, the program forecast image generation unit 264 generates the icon 342 by extracting a maximum of three icon pieces 334 in order to secure the size of the icon 342 and maintain the visibility, but the present invention is not limited to this. Instead, the icon 342 may be generated by extracting four or more icon pieces 334.

  The display control unit 266 causes the display 224 to display the program forecast image (time axis graph 340 and icon 342) generated by the program forecast image generation unit 264, the program, EPG, map, and the like received by the program reception unit 214.

  FIG. 10 is an explanatory diagram for explaining the time axis graph 340 or the icon 342 displayed on the display 224 by the display control unit 266.

  As shown in FIG. 10A, for example, the display control unit 266 superimposes the time axis graph 340 and a part 350a of the program information on the video stream 350 of the program received by the program receiving unit 214 (super Impose) and display on the display 224.

  As shown in FIG. 10B, for example, the display control unit 266 superimposes the icon 342 and a part of the program information 350a on the video stream 350 of the program received by the program receiving unit 214 (super Impose) and display on the display 224. In the example shown in FIG. 10B, the display control unit 266 displays, on the icon 342, a character string “I will not be able to see from the middle” indicating the transition of the reception state until the broadcast end time of the program indicated by the icon 342. In association therewith, the display 224 is displayed, but the present invention is not limited to this, and only the icon 342 may be displayed on the display 224.

  In the example shown in FIG. 10, the display control unit 266 displays the time axis graph 340 or the icon 342 generated as the program forecast image on the display 224, but displays both the time axis graph 340 and the icon 342 on the display 224. Also good.

  As described above, according to the program receiving apparatus 200 according to the present embodiment, the broadcast end time of the program is based on the vehicle speed, not on the specific program reception state at an arbitrary geographical point in the movement route. It is possible to present to the passenger the time transition of the reception state of the program in the moving section that moves up to. Therefore, it is possible to present to the passenger a transition of the reception state corresponding to the passage of time of the program to be received.

  In addition, the display control unit 266 displays a program forecast image indicating the time transition of the reception state during the moving section of the program on the display 224, so that the passenger can determine which program to receive by simply viewing the display 224. It is possible to easily and quickly grasp through the visual whether the reception is good around and the reception becomes difficult.

(Program reception method)
A program receiving method using the above-described program receiving apparatus 200 is also provided. FIG. 11 is a flowchart showing specific processing of the program receiving method according to the first embodiment.

  When the destination setting unit 252 sets the destination in response to an operation input for setting the destination through the operation unit 222 by the passenger (S400), the position acquisition unit 216 determines when the destination is set. The position information indicating the position of the program receiving apparatus 200 is acquired (S402). The route deriving unit 254 derives a movement route to the destination set in the destination setting step S400 based on the position information acquired in the position acquisition step S402, and notifies the passenger of the movement route (S404). .

  After the route acquisition unit 256 acquires the travel route (S406) and receives an input to start viewing one program by the passenger through the operation unit 222 (YES in S408), the program selection unit 258 causes the program reception unit 214 to The program information for each of the plurality of programs, the video stream of the program corresponding to the viewing start input of the program, and the audio stream are received (S410).

  Then, the movement section deriving unit 260 acquires the vehicle speed (S412), and in the viewing start step S408, the viewing start time, the position information at that time, the broadcast end time of the program received by the program receiving unit 214, Based on the vehicle speed acquired in the speed acquisition step S412, a movement section that moves by the broadcast end time of the program on the movement route is derived (S414).

  The reception state extraction unit 262 extracts the reception state of the program for each divided section in the movement section derived in the movement section derivation step S414 from the reception state database 300 held in the device memory 212 (S416), and generates a program forecast image The unit 264 generates a program forecast image (either or both of the time axis graph 340 and the icon 342) indicating the time transition of the reception state during the program movement section, and the display control unit 266 displays the program forecast image as It is displayed on the display 224 together with the video stream of the program received by the program receiving unit 214 (S418).

  FIG. 12 is a flowchart showing specific processing when the display control unit 266 displays an icon as a program forecast image in the program forecast display step S418.

  As shown in FIG. 12, the display control unit 266 determines whether there is a change in the reception state of the program during the movement section extracted by the reception state extraction unit 262 (S420). When there is no change in the reception state (NO in S420), the display control unit 266 extracts the icon segment 334 associated with one reception state extracted by the reception state extraction unit 262 from the program forecast table 330, and displays the icon. 342 is generated and displayed on the display 224 (S422).

  When there is a change in the program reception state during the movement section (YES in S420), the display control unit 266 determines whether or not the program reception state changes two or more times during the movement section (S424), 2 If it does not change more than once, that is, if it changes only once (NO in S424), the display control unit 266 extracts the icon segments 334 associated with the two reception states extracted by the reception state extraction unit 262, respectively. Then, the icons 342 are generated in time series and displayed on the display 224 (S426).

  When the reception state of the program changes twice or more during the movement section (YES in S424), the display control unit 266 includes the latest reception state among the three or more reception states extracted by the reception state extraction unit 262, and The icon pieces 334 associated with the three reception states of the two reception states are extracted in order of the duration of the reception state, and the icons 342 are generated in time series to be displayed on the display 224 ( S428).

  As described above, according to the program receiving method according to the present embodiment, the passenger can easily and quickly grasp the temporal transition of how stably the received program can be continuously viewed. Is possible.

  In this embodiment, the travel section derivation step S414 to the program forecast display step S418 are performed when a program viewing start input by the passenger is accepted (YES in S408), but the present invention is not limited to this. The program receiving unit 214 may start the movement section derivation step S414 using the start of reception of a reserved predetermined program as a trigger according to the reservation setting of the program.

  Further, based on the control of the central control unit 210, the movement section derivation step S414 may be started every predetermined time. At this time, it is preferable to start the movement section derivation step S414 at a timing (predetermined time 30 minutes) at 0 minutes per hour or 30 minutes per hour as the broadcast start time of a general program.

  With the configuration in which the movement section derivation step S414 is started without accepting the program viewing start input by the passenger, the passenger uses the program receiving device 200 to view the program (content) recorded on a recording medium such as a DVD. The program forecast image can be visually recognized even when the user is listening to the radio or listening to the radio.

  Furthermore, when the vehicle speed acquired in the speed acquisition step S412 differs from the vehicle speed acquired for displaying the previous program forecast image by a predetermined value or more, the movement section derivation step S414 may be executed again. With this configuration, even when the moving speed of the vehicle 104 is suddenly slowed down due to a traffic jam or accident after the program forecasting image is displayed in the program forecast displaying step S418, or even when the moving speed is fast, Matching program forecast images can be displayed.

(Second embodiment: program receiving apparatus 500)
Although the reception state extraction unit 262 of the program receiving apparatus 200 according to the first embodiment described above extracts the reception state in the moving section of the program received by the program reception unit 214 from the reception state database 300. However, the present invention is not limited to this, and the reception status of a plurality of programs on the movement route can be extracted from the reception status database 300. Hereinafter, a program receiving apparatus 500 that extracts reception states of a plurality of programs and displays the extracted reception states of the plurality of programs on the display 224 will be described.

  FIG. 13 is a functional block diagram showing a schematic configuration of a program receiving apparatus 500 according to the second embodiment. As shown in FIG. 13, the program receiving device 500 includes a central control unit 510, a device memory 512, a program receiving unit 214, a position acquisition unit 216, a wireless communication unit 218, a speed deriving unit 220, and an operation unit. 222, a display 224, and an audio output unit 226. In addition, about the component substantially the same as the program receiving apparatus 200 of 1st Embodiment mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted here, Central control different from 1st Embodiment here. The unit 510 and the device memory 512 will be described in detail.

  The central control unit 510 is composed of a semiconductor integrated circuit including a central processing unit (CPU) and a signal processing unit (DSP), and manages and controls the entire program receiving apparatus 500 using a predetermined program.

  The device memory 512 includes a RAM, a flash memory, an HDD, and the like. In the present embodiment, the device memory 512 associates a movable route, a road type (for example, a general road, a toll road, a highway, etc.) and a predicted average speed for each road type, and derives a movement route. Map information, a movable route, and a reception state database 300 that associates reception states of a plurality of programs, a program forecast table 330, a guide message table, and a program genre table are stored in advance. The reception status database 300 and the program forecast table 330 are substantially the same as the reception status database 300 and the program forecast table 330 of the first embodiment described above. The guide message table will be described in detail later. Here, the reception state of a plurality of programs also indicates the reception state of each of a plurality of broadcast waves that are broadcast from a plurality of broadcasting stations and that carry each program.

  In the present embodiment, the central control unit 510 includes an audio control unit 250, a destination setting unit 252, a route deriving unit 254, a route acquiring unit 256, a program selecting unit 258, a moving section deriving unit 520, and a reception state extracting unit. 522, the program forecast image generation unit 264, and the display control unit 524 also function. Also here, components substantially the same as those of the program receiving apparatus 200 of the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and a movement section deriving unit having a configuration different from that of the first embodiment. 520, the reception state extraction unit 522, and the display control unit 524 will be described in detail.

  The movement section deriving unit 520 moves based on the viewing start time, the position information at that time, the broadcast end time for each of the plurality of programs, and the vehicle speed until the broadcast end time of the program on the movement route. Are derived for each of a plurality of programs. Here, the broadcast end time is derived by adding the program time length to the program start time of the program information for each of the plurality of programs acquired by the program receiving unit 214.

  The reception state extraction unit 522 extracts not only the reception state of the program received by the program reception unit 214 but also the reception states of a plurality of other programs on the movement route from the reception state database 300 held in the device memory 512. .

  The display control unit 524 displays the program priority on the display 224 based on the broadcast end time and the scheduled arrival time for each program together with the program forecast image generated by the program forecast image generation unit 264. Here, the program priority is displayed by displaying the program information of the programs side by side according to the priority.

  For example, the display control unit 524 sets the program information of the program and the program information of each program in the order in which the broadcast end time of the program is before the scheduled arrival time and the broadcast end time of the program is closer to the current time. The program forecast image indicating the time transition of the reception state is juxtaposed and displayed on the display 224.

  With such a configuration, the passenger can grasp the program to be viewed and the reception state of the program only by visually checking the display 224 before reaching the destination.

  The display control unit 524 displays the priority order of programs on the display 224 based on the broadcast end time and the scheduled arrival time for each program together with the program forecast image generated by the program forecast image generation unit 264. In this case, the moving section deriving unit 260 may exclude long-running programs (for example, programs longer than one hour) in advance (not considering priority) and do not derive a moving section.

  In the present embodiment, the display control unit 524 is the time during which the reception state and the reception state for each of a plurality of programs continue together with the program prediction image extracted by the reception state extraction unit 522 and generated by the program prediction image generation unit 264. The priority order of the programs is displayed on the display 224 in descending order of the reception goodness based on. For example, the reception goodness is increased in the order in which the reception state of each program is continuous stable reception U in the longest order, the latest reception state is continuous stable reception U, and the continuous time is increased in the longest order. The reception goodness level is increased in descending order of the average value of the reception state up to the end time.

  FIG. 14 is an explanatory diagram for explaining the processing of the display control unit 524 according to the second embodiment. As shown in FIG. 14A, for example, the display control unit 524 changes the priority order 550a of the program, the program information 550b of the program, and the time transition of the reception state of each program in the descending order of reception goodness. Are displayed side by side on the display 224. Here, the display control unit 524 displays the icon 342 on the display 224 as the program forecast image. However, the display control unit 524 is not limited thereto, and the time axis graph 340 may be displayed.

  FIG. 14B shows an example in which the display control unit 524 displays the icon 342 and the time axis graph 340 side by side on the display 224 as a program forecast image. As shown in FIG. 14B, the display control unit 524 indicates the time transition of the program priority 550a, the program information 550b of the program, and the reception state of each program in the descending order of reception goodness. The icon 342 and the time axis graph 340 are juxtaposed and displayed on the display 224.

  A configuration in which the display control unit 524 displays the priority order of programs on the display 224 in descending order of reception goodness, so that the passenger can only view the display 224 and can continuously view the program with stable reception sensitivity. Can be grasped.

  The display control unit 524 may display the priority order of programs on the display 224 according to a predetermined genre order.

  In the present embodiment, the display control unit 524 refers to the program genre table held in the device memory 512 together with the program forecast image generated by the program forecast image generation unit 264 and causes the display 224 to display the program priority.

  FIG. 15 is an explanatory diagram for explaining an example of a program genre table 570 according to the second embodiment. As shown in FIG. 15, the program genre table 570 according to the present embodiment includes a genre priority (Gp) 570a, a genre classification (Gb) 570b, a genre name (Gn) 570c, and a message type (Mi) 570d. Is associated. Here, the genre priority order 570a indicates an order that does not hinder the passenger from understanding the contents of the program even if the reception state deteriorates and viewing becomes difficult on the way. The genre priority order 570a can be changed in the order desired by the passenger according to the operation input to the operation unit 222 by the passenger. The genre classification 570b is an identifier indicating the genre name 570c. The message type 570d is an identifier for referring to the guide message table.

  FIG. 16 is an explanatory diagram for explaining an example of the guide message table 572 according to the second embodiment. As shown in FIG. 16, the guide message table 572 according to the present embodiment associates a message type (Mi) 570d with a guide message 574a at the time of continuous stable reception U and a guide message 574b at the time of intermittent reception M. Yes.

  FIG. 17 is an explanatory diagram for explaining processing performed by the display control unit 524 with reference to the program genre table 570. As shown in FIG. 17, in this embodiment, the display control unit 524 refers to the program genre table 570 to extract, for example, the genre of the program received by the program reception unit 214 and has a high genre priority 570a. In order, the program priority 580a, the program information 580b of the program, and the icon 342 indicating the time transition of the reception state of each program are juxtaposed and displayed on the display 224.

  Further, the display control unit 524 refers to the guide message table 572, extracts the guide message 574 based on the message type 570d associated with the genre classification 570b, and displays the guide message 574 on the display 224 in association with the icon 342. Here, the display control unit 524 displays the icon 342 on the display 224 as the program forecast image. However, the display control unit 524 is not limited thereto, and the time axis graph 340 may be displayed.

  As described above, for example, news programs and variety programs whose programs are composed of a plurality of topics are complete for each topic. There is little to feel. However, if it is difficult to watch a drama program or a movie program that develops due to the accumulation of events, it becomes difficult for the passenger to understand the contents of the program from the middle and feel dissatisfied. Therefore, the display control unit 524 displays the program priority on the display 224 in accordance with a predetermined genre order together with the reception state, and increases the priority of the program including a plurality of independent short-time topics. With this configuration, it is possible to facilitate program selection in a situation where the reception state may deteriorate.

(Program reception method)
A program receiving method using the above-described program receiving apparatus 500 is also provided. FIG. 18 is a flowchart showing specific processing of the program receiving method according to the second embodiment. In addition, the same code | symbol is attached | subjected about the process substantially equivalent to the program reception method concerning 1st Embodiment mentioned above.

  When the destination setting unit 252 sets the destination in response to an operation input for setting the destination through the operation unit 222 by the passenger (S400), the position acquisition unit 216 determines when the destination is set. The position information indicating the position of the program receiving device 500 is acquired (S402). The route deriving unit 254 derives a movement route to the destination set in the destination setting step S400 based on the position information acquired in the position acquisition step S402, and notifies the passenger of the movement route (S404). .

  After the route acquisition unit 256 acquires the travel route (S406), when the operation unit 222 receives an input to start viewing one program by the passenger (YES in S408), the program selection unit 258 displays the program reception unit 214. In addition, the program information for each of the plurality of programs, the video stream of the program according to the viewing start input of the program, and the audio stream are received (S410), and the movement section deriving unit 520 acquires the vehicle speed (S412). ).

  Then, the movement section deriving unit 520 acquires the viewing start time, the position information at that time, the broadcast end time for each of the plurality of programs received by the program receiving unit 214, and the speed acquisition step S412 in the viewing start step S408. Based on the vehicle speed, a movement section that moves by the broadcast end time of the program on the movement route is derived for each of the plurality of programs (S600).

  The reception state extraction unit 522 extracts the reception state of each program for each divided section in the movement section derived in the movement section derivation step S600 from the reception state database 300 held in the device memory 512 (S602) The forecast image generation unit 264 generates a program forecast image (either or both of the time axis graph 340 and the icon 342) indicating the time transition of the reception state during the program moving section for each program (S604), and for each program. Are associated with the program information and the program forecast image, respectively (S606).

  Then, it is determined whether there is program information of a program for which a program forecast image has not yet been generated among the program information of the plurality of programs acquired in the program information receiving step S410 (S608), and a program forecast image is generated. If there is program information of a program that has not been performed (NO in S608), the process returns to the movement section derivation step S600.

  Among the program information of the plurality of programs acquired in the program information receiving step S410, there is no program information of the program that has not yet generated the program forecast image, that is, the program information of all the programs acquired in the program information receiving step S410. When the generation of the based program forecast image is completed (YES in S608), the display control unit 524 determines the priority of programs (priority list) according to the order of high reception goodness or a predetermined genre order. ) Is determined (S610). The priority list will be described later. Then, the display control unit 524 causes the display 224 to display the priority order of the program and the program forecast image of the program according to the priority order list generated in the priority order determination step S610 (S612).

  FIG. 19 is a flowchart for explaining an example of the process of the priority order determination step S610. Here, a process in which the display control unit 524 determines the priority order of programs based on the reception goodness level will be described.

  First, the display control unit 524 clears the priority list (S620), and acquires program information of all the programs associated with the program forecast image in the association step S606 (S622). Then, the program information of any one program is extracted from the program information of all programs associated with the program forecast image (S624), and the program forecast image (here, the icon 342 and the program forecast image associated with the program information) is extracted. It is determined whether or not the icon 342a is generated only by the icon segment 334a of the continuous stable reception U (S626). If the icon 342a is generated only by the icon segment 334a of the continuous stable reception U (YES in S626), it is added to the end of the priority list (S628). If it is not the icon 342a (NO in S626), it is not added to the priority list.

  Subsequently, it is determined whether or not the determination of whether or not the program information of all the programs acquired in the program information acquisition step S622 is the icon 342a generated only by the icon segment 334a of the continuous stable reception U is completed. If the determination is not completed (NO in S630), the process returns to the program information extraction step S624. If the determination is completed (YES in S630), the program information is newly acquired in the program information acquisition step S622. Program information of one arbitrary program is extracted from the program information of all programs (S632).

  It is determined whether or not the program forecast image associated with the program information extracted in the program information extraction step S632 is the icon 342 generated by the two icon segments 334 including the icon segment 334b of the continuous stable reception U. (S634). If the icon 342 is generated by two icon segments 334 including the icon segment 334b of the continuous stable reception U (YES in S634), it is added to the end of the priority list (S636), and the continuous stable reception U If it is not the icon 342 generated by the two icon pieces 334 including the icon piece 334b (NO in S634), it is not added to the priority order list.

  For the program information of all the programs acquired in the program information acquisition step S622, the determination as to whether or not the icons 342 are generated by the two icon segments 334 including the icon segment 334b of the continuous stable reception U is completed. Or not (S638). If the determination is not completed (NO in S638), the process returns to the program information extraction step S632, and if the determination is completed (YES in S638), the programs of all the programs newly acquired in the program information acquisition step S622 are obtained. Program information of an arbitrary program is extracted from the information (S640).

  Whether or not the program forecast image associated with the program information extracted in the program information extraction step S640 is the icon 342 generated by the three icon segments 334 including the icon segment 334b of the continuous stable reception U. Is determined (S642). If the icon 342 is generated by the three icon segments 334 including the icon segment 334b of the continuous stable reception U (YES in S642), it is added to the end of the priority list (S644), and the continuous stable reception U If the icon is not the icon 342 generated by the three icon segments 334 (including the icon segment 334b) (NO in S642), no addition to the priority list is performed.

  For the program information of all the programs acquired in the program information acquisition step S622, the determination as to whether or not the icons 342 are generated by the three icon segments 334 including the icon segment 334b of the continuous stable reception U is completed. Or not (S648). If the determination is not completed (NO in S648), the process returns to the program information extraction step S640. If the determination is completed (YES in S648), the generation of the priority list is terminated.

  FIG. 20 is a flowchart for explaining another example of the processing of priority order determination step S610. Here, a process in which the display control unit 524 determines the priority order of programs with reference to the program genre table 570 held in the device memory 512 will be described.

  First, the display control unit 524 clears the priority list (S650), initializes the value of the genre priority (Gp) 570a to 1 (S652), and associates all the program forecast images associated with the associated step S606. The program information of the program is acquired (S654). Then, the display control unit 524 refers to the program genre table 570 held in the device memory 512, and the program of the program having the genre classification (Gb) 570c associated with the set genre priority (Gp) 570a. Information is extracted (S656).

  The program forecast image (here, icon 342) associated with the program information of the program extracted in the program information extraction step S656 is the icon element 334a, 334b of the continuous stable reception U or the icon element of the intermittent reception M. It is determined whether or not the icon 342 includes the piece 334c (S658).

  If the icon 342 includes the icon pieces 334a, 334b, and 334c (YES in S658), it is added to the end of the priority list (S660), and the icon pieces 334 of the continuous stable reception U or the intermittent reception M are included. If it is not an icon (NO in S658), it is not added to the priority list.

  Subsequently, for the program information of all programs acquired in the program information acquisition step S654, it is determined whether or not the search for the genre classification (Gb) 570b associated with the genre priority (Gp) 570a is completed (S662). . If the search is completed (YES in S662), the display control unit 524 increments the genre priority (Gp) 570a (S664), and the genre classification (Gb) associated with all the genre priorities (Gp) 570a. ) It is determined whether or not the program information of the program of 570b has been extracted (S666). If it has been extracted (YES in S666), the generation of the priority list is terminated. If there is a genre classification (Gb) 570b associated with an unextracted genre priority (Gp) 570a (NO in S666), the process returns to the program information extraction step S656.

(Third embodiment: program receiving apparatus 700)
In the first and second embodiments described above, the program receiving apparatuses 200 and 500 used when the passenger (user) moves in the vehicle 104 have been described. In the present embodiment, how much program is received when a user travels by public transportation including one or more selected from the group of railways, buses, airplanes, and ships (hereinafter simply referred to as public transportation). A program receiving apparatus 700 that allows the user to grasp whether or not it can continue to watch stably will be described.

  FIG. 21 is a functional block diagram showing a schematic configuration of a program receiving apparatus 700 according to the third embodiment. In the present embodiment, the program receiving apparatus 700 will be described by taking a mobile phone that can be carried when a user uses public transportation as an example, but a PHS, a notebook personal computer, a PDA, a digital camera, a music player Various electronic devices having a display and capable of wireless communication, such as portable televisions, game devices, DVD players, and remote controllers, can be used as the program receiving device.

  As shown in FIG. 21, the program receiving device 700 includes a central control unit 710, a device memory 712, a program receiving unit 214, a wireless communication unit 716, an operation unit 222, a display 224, an audio output unit 718, And an audio input unit 720. In addition, about the component substantially the same as the program receiving apparatus 200 of 1st Embodiment mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted here, Central control different from 1st Embodiment here. Unit 710, device memory 712, wireless communication unit 716, audio output unit 718, and audio input unit 720 will be described in detail.

  The central control unit 710 is composed of a semiconductor integrated circuit including a central processing unit (CPU) and a signal processing unit (DSP), and manages and controls the entire program receiving apparatus 700 using a predetermined program. The central control unit 710 also performs functions such as a call function, a mail transmission / reception function, an imaging function, a music playback function, and a program reception function, which are functions specific to a mobile phone, using a predetermined program.

  The device memory 712 includes a RAM, a flash memory, an HDD, and the like. In the present embodiment, the device memory 712 holds a sensitivity classification table 320 and a program forecast table 330 in advance. Since the sensitivity classification table 320 and the program forecast table 330 are substantially the same as the sensitivity classification table 320 and the program forecast table 330 of the first embodiment described above, the same reference numerals are given and description thereof is omitted.

  The wireless communication unit 716 performs wireless communication with the base station 110 in the communication network 114. As such wireless communication, for example, CDMA (Code Division Multiple Access) that multiplies a different code for each program receiving apparatus 700 can be employed.

  In the present embodiment, the wireless communication unit 716 communicates with the external server 116 in the communication network 114.

  The audio output unit 718 is configured by a speaker, and outputs an audio stream of the program received by the program receiving unit 214 in accordance with the control of the audio control unit 250. Further, in the present embodiment, the audio output unit 718 converts the audio signal of the communication partner received by the program receiving device 700 into audio and outputs it under the control of the audio control unit 250. In addition, a ring tone, an operation sound of the operation unit 222, an alarm sound, and the like can be output.

  The audio input unit 720 is configured with a microphone or the like, and converts the user's audio input during a call into an electric signal that can be processed in the program receiving apparatus 700.

  In the present embodiment, the central control unit 710 includes an audio control unit 250, a destination setting unit 730, a program selection unit 258, a route derivation unit 732, a route acquisition unit 734, a position acquisition unit 736, and a movement section derivation unit 738. , And also functions as a reception state extraction unit 740, a program forecast image generation unit 264, and a display control unit 266. Here, components substantially the same as those of the program receiving apparatus 200 of the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and the destination setting is different from that of the first embodiment. The unit 730, the route deriving unit 732, the route acquiring unit 734, the position acquiring unit 736, the movement section deriving unit 738, and the reception state extracting unit 740 will be described in detail.

  The destination setting unit 730 sets a departure point and a destination according to an operation input through the operation unit 222 by the user. In the present embodiment, the destination setting unit 730 sets a station as a departure point and a destination.

  The route deriving unit 732 refers to the travel route information and the operation schedule information held by the external server 116 through the wireless communication unit 716 and derives the travel route. Here, the travel route information is information indicating all routes on which public transportation (train in this case) can move.

  FIG. 22 is an explanatory diagram for explaining an example of the operation schedule information 760 according to the third embodiment. As shown in FIG. 22, the operation schedule information 760 associates a public institution name 760a with a stop order 760b, a stop place name 760c, a distance 760d from the starting point, an arrival time 760e, and a departure time 760f.

  The route deriving unit 732 includes a travel route connecting the departure point and the destination set by the destination setting unit 730, a departure point and a destination, a time when the departure point and the destination are set, travel route information, Calculation is based on the schedule information 760. In the present embodiment, the route deriving unit 732 selects a travel route with the shortest arrival time to the destination, a travel route with the least number of transfers to the destination, or a travel route with the lowest fare to the destination. To derive. Then, the display control unit 266 causes the display 224 to display the movement route derived by the route deriving unit 732.

  The route acquisition unit 734 acquires one movement route among the movement routes displayed on the display 224 in accordance with an operation input through the operation unit 222 by the user.

  The position acquisition unit 736 acquires position information indicating the position of the program receiving device 700 at the viewing start time using the acquired travel route and the operation schedule information 760.

  For example, the position acquisition unit 736 compares the viewing start time with the arrival time 760e or departure time 760f of the stop location (station) in the travel route in the operation schedule information 760, and arrives at the arrival time 760e closest to the viewing start time. Alternatively, the position information is acquired by regarding the position of the station indicated by the stop place name 760c associated with the departure time 760f as the position of the program receiving apparatus 700.

  Further, when the position of the program receiving device 700 at the viewing start time is estimated to be between the stopping places (stations) in the operation schedule information 760, the position acquisition unit 736 determines the distance between the stopping places and the viewing start time. The program at the viewing start time based on the departure time 760f at the stop location (hereinafter referred to as the front station) and the arrival time 760e at the stop location (hereinafter referred to as the back station) that stops after the viewing start time. The position information may be acquired by estimating how far the position of the receiving device 700 is from the previous station.

  For example, when the position of the program receiving device 700 at the viewing start time is estimated to be between the front station (for example, A station) and the back station (for example, B station), the position acquisition unit 736 The difference between the distance 760d from the starting point and the distance 760d from the starting point of the A station is taken, and the distance C between the A station and the B station is derived. Further, the position acquisition unit 736 derives a difference D between the arrival time 760e of the B station and the departure time 760f of the A station, and a difference E between the viewing start time and the departure time 760f of the A station. Then, the position acquisition unit 736 derives a distance E obtained by multiplying the distance C by a value obtained by dividing the difference E by the difference D, and receives the program position at the viewing start time for the position on the moving route advanced by the distance E from the station A. The position information is acquired by assuming that the position of the apparatus 700 is present.

  The movement section deriving unit 738 includes the viewing start time, the position information acquired by the position acquiring unit 736, the broadcast end time of the program selected by the program selecting unit 258 and received by the program receiving unit 214, and the operation schedule information. 760, the moving section of the moving route up to the broadcast end time of the program is derived. Here, the broadcast end time is derived by adding the program time length to the program start time of the program information acquired by the program receiving unit 214.

  The reception state extraction unit 740 refers to the reception state database 300 held by a separate device (external server 116) through the wireless communication unit 218. In the present embodiment, the reception state extraction unit 740 refers to the sensitivity classification table 320 held in the device memory 712, and acquires the sensitivity classification associated with the form of the antenna 202 provided in itself. Then, the reception state extraction unit 740 refers to the reception state database 300 corresponding to the acquired sensitivity classification provided in the external server 116.

  In the case of the above public transportation, the travel route and the operation schedule are determined in advance. Therefore, by using the operation schedule on the predetermined travel route, it is possible to easily derive the travel route of the travel route until the end of the program broadcast without considering the travel speed.

  Also with the above-described program receiving apparatus 700, it is possible to allow the user to grasp the temporal transition of how stable the received program can be viewed.

(Fourth embodiment: program receiving apparatus 800)
FIG. 23 is a functional block diagram showing a schematic configuration of a program receiving apparatus 800 according to the fourth embodiment. In the present embodiment, the program receiving device 800 will be described by taking a car navigation device as an example, similar to the program receiving device 200, but a mobile phone, PHS, notebook personal computer, PDA, digital camera, music player, portable TV, Various electronic devices having a display and capable of wireless communication, such as game devices, DVD players, and remote controllers, can be used as the program receiving device.

  As shown in FIG. 23, the program receiving device 800 includes a central control unit 810, a device memory 812, a program receiving unit 214, an operation unit 222, a display 224, and an audio output unit 226. . In addition, about the component substantially the same as the program receiving apparatus 200 of 1st Embodiment mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted here, Central control different from 1st Embodiment here. The unit 810 and the device memory 812 will be described in detail.

  The central control unit 810 includes a semiconductor integrated circuit including a central processing unit (CPU) and a signal processing unit (DSP), and manages and controls the entire program receiving apparatus 800 using a predetermined program.

  The device memory 812 includes a RAM, a flash memory, an HDD, and the like. In the present embodiment, the device memory 812 holds map information for deriving a movement route and a program genre table 570 in advance. Since the program genre table 570 is substantially the same as the program genre table 570 of the second embodiment described above, the same reference numerals are given and description thereof is omitted.

  In the present embodiment, the central control unit 810 also functions as an audio control unit 250, a destination setting unit 252, a route deriving unit 254, a route acquisition unit 256, a program selection unit 258, and a display control unit 820.

  In the present embodiment, the display control unit 820 causes the display 224 to display program priorities of broadcast stations according to a predetermined genre order.

  As described above, when a drama program or a movie program, etc. in which a program is developed due to accumulation of events cannot be viewed in the middle, the user cannot understand the contents of the program from the middle and feels dissatisfied. . In this embodiment, the priority order of programs is displayed on the display 224 in accordance with a predetermined genre order, and the priority order of a program composed of a plurality of independent short-time topics is increased, so that the destination can be obtained. It is possible to reduce the possibility of the user selecting a program that may not end even though it has arrived.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  Note that each step in the program receiving method of the present specification does not necessarily have to be processed in time series in the order described in the flowchart, and may include processing in parallel or by a subroutine. In the present invention, the route includes a road on which a vehicle passes, a track on which a train travels, a route on which an aircraft flies, a route on which a ship navigates, and the like.

  The present invention can be used in a program receiving apparatus and a program receiving method for receiving a program in a mobile body.

200, 500, 700, 800 ... program receiving apparatus 202 ... antenna 214 ... program receiving units 216 and 736 ... position acquisition units 252 and 730 ... destination setting units 254 and 732 ... route deriving units 256 and 734 ... route acquisition unit 260, 520, 738: Movement section deriving unit 262, 522, 740 ... Reception state extracting unit 264 ... Program forecast image generating unit 266, 524, 820 ... Display control unit 300 ... Reception state database 340 ... Time axis graph 342 ... Icon

Claims (12)

A program receiving device for receiving broadcast waves via an antenna,
A program receiving unit for receiving a program through the broadcast wave;
A position acquisition unit for acquiring position information indicating the position of the program receiving device;
A route acquisition unit for acquiring a movement route to a destination based on the position information acquired by the position acquisition unit;
A moving section deriving unit for deriving a moving section that moves by the broadcast end time of the program in the moving route;
A reception state extraction unit that extracts a reception state in the movement section of the program from a reception state database that associates a movable route and a reception state of the program on the route;
A program forecast image generating unit for generating a program forecast image indicating a time transition of a reception state in the moving section of the program;
A display control unit for displaying the program forecast image on a display;
A program receiving apparatus comprising:   The program receiving apparatus according to claim 1, wherein the program forecast image is a time axis graph showing a time transition of a reception state of the program until a broadcast end time of the program.   3. The program receiving apparatus according to claim 1, wherein the program forecast image is an icon indicating the reception state for each transition of the reception state of the program up to a broadcast end time of the program.   The reception status database is provided outside the program receiving device, and the reception status extraction unit extracts the reception status of the program in the moving section from the reception status database via a communication network. The program receiving device according to claim 1, wherein the program receiving device is a program receiving device.   5. The program receiving apparatus according to claim 1, wherein the reception state database differs according to a form of the antenna.   6. The reception status database associates a divided section obtained by dividing the movable route by a predetermined section and a reception status of the program for each of the divided sections. The program receiving device according to claim 1. The route acquisition unit acquires a travel route based on a travel route of one or more public transports selected from a group of a railway, a bus, an aircraft, and a ship,
The said movement area derivation | leading-out part derives | leads-out the movement area of the said movement route to the broadcast end time of the said program based on the operation schedule information which shows the operation schedule in the said driving route. The program receiving device according to any one of claims. In the reception state database, the movable route is associated with reception states of a plurality of programs,
The reception state extraction unit also extracts a reception state for each program in the travel route from the reception state database,
The display control unit causes the display to display the priority order of the programs in descending order of reception goodness based on a reception state for each program and a time during which the reception state continues. 8. The program receiving device according to any one of 7 above. In the reception state database, the movable route is associated with reception states of a plurality of programs,
The reception state extraction unit also extracts a reception state for each program in the travel route from the reception state database,
8. The display control unit according to claim 1, wherein the display control unit displays a priority order of the programs on a display based on a broadcast end time for each program and a scheduled arrival time of the destination. The program receiving device according to item. In the reception state database, the movable route is associated with reception states of a plurality of programs,
The reception state extraction unit also extracts a reception state for each program in the travel route from the reception state database,
8. The program receiving apparatus according to claim 1, wherein the display control unit displays the priority order of the programs on a display according to a predetermined genre order. 9. A program receiving device for receiving broadcast waves via an antenna,
A program receiving unit for receiving a program broadcast by a plurality of broadcasting stations through the broadcast wave;
A position acquisition unit for acquiring position information indicating the position of the program receiving device;
A route acquisition unit that acquires a travel route to a destination based on the acquired position information;
A display control unit for displaying a priority order of programs broadcast by the broadcast station on a display according to a predetermined genre order;
A program receiving apparatus comprising: A program receiving method using a program receiving device for receiving broadcast waves via an antenna,
Receiving a program through the broadcast wave,
Obtaining position information indicating the position of the program receiving device;
Based on the acquired location information, obtain a travel route to the destination,
Deriving a movement section that moves by the broadcast end time of the program in the movement route
From the reception state database that associates the movable route and the reception state of the program on the route, the reception state of the program in the movement section is extracted,
Generating a program forecast image showing a time transition of the reception state during the movement section of the program;
A program receiving method, comprising: displaying the program forecast image on a display.

Images