JP4209838B2 - In-vehicle multimedia system, in-vehicle multimedia device and portable player - Google Patents

Description

  The present invention relates to an in-vehicle multimedia system, an in-vehicle multimedia device, and a portable player.

  Non-Patent Document 1 discloses a navigation system having a hard disk drive. This navigation system is installed in a vehicle, and the user can freely remove the hard disk drive unit from the main body. Further, in this navigation system, by attaching the removed hard disk drive unit to a dedicated home device, the user can update navigation data or write music data at home.

Pioneer Corporation, title [carrozzeria | HDD [Cyber Navi]> Introduction of functions> Home use], [online], [October 29, 2004] search, Internet <http: // www. hdd-cybernavi. com / function / use / index. html>

  However, when using the navigation system of Non-Patent Document 1, the user must purchase home equipment separately from the navigation system attached to the vehicle. The number of devices to be purchased increases, and the cost burden on the user increases.

  In addition, the user must remove the hard disk drive unit from the main body of the navigation system and carry it in order to update navigation data and write music data by the user at home. Moreover, this hard disk drive unit can only store data. Therefore, the user feels troublesome for the user.

  In particular, from the viewpoint of a user who carries a portable player on a daily basis, carrying the hard disk drive unit itself is annoying separately, and thus the navigation system in which only the hard disk drive unit can be removed, Active purchase motivation is unlikely to occur.

  The present invention provides an in-vehicle multimedia system that can improve the convenience of a user while reducing the cost of the user by using the portable player for an original purpose and using it for navigation in a vehicle, and It is an object of the present invention to obtain an in-vehicle multimedia device and a portable player that can be used therefor.

  The in-vehicle multimedia system according to the present invention includes a portable player having a storage means for writing audio data and navigation data by a computer device, and a player reproducing means for reproducing the audio data stored in the storage means, and a portable player. Data acquisition means for acquiring data stored in the storage means, navigation means for causing the data acquisition means to acquire navigation data, and using the acquired data for route guidance or current location guidance, and data An in-vehicle multimedia device having in-vehicle reproduction means for causing the acquisition means to acquire audio data and reproducing the acquired data.

  The in-vehicle multimedia device according to the present invention includes a navigation connector to which a portable player having storage means for storing voice data and navigation data, and player playback means for playing back voice data stored in the storage means, Based on the data acquisition means for acquiring data stored in the storage means of the portable player via the navigation connector, the current position acquisition means for acquiring position information of the current position of the vehicle, and the position information of the current position of the vehicle, Current location guidance means for causing the data acquisition means to acquire navigation data around the current location and generating a display screen for displaying the current location of the vehicle and a map of the surroundings using the acquired data, and the generated display The voice display is acquired by the navigation display means for displaying the screen and the data acquisition means. A vehicle reproducing means for reproducing the resulting data, and has a.

  Another on-vehicle multimedia device according to the present invention is connected to a portable player having storage means for storing voice data, navigation data and guide route data, and player playback means for playing back the voice data stored in the storage means. A navigation connector, a data acquisition means for acquiring data stored in the storage means of the portable player via the navigation connector, a current position acquisition means for acquiring position information of the current position of the vehicle, and a current position of the vehicle Based on the position information, the data acquisition means acquires navigation data and guidance route data around the current location, and displays the current location of the vehicle and a map around it based on the acquired navigation data and guidance route data. Generate a display screen that displays the guide route in the map based on A navigation display means for displaying the navigation unit, the generated display screen that causes acquired speech data to the data acquisition unit, a vehicle reproducing means for reproducing the acquired data, and has a.

  The in-vehicle multimedia apparatus according to the present invention includes a decoder for decoding audio data acquired by the in-vehicle reproduction means by the data acquisition means, and audio data decoded by the decoder, in addition to the above-described configurations of each invention. There are gain adjusting means for performing gain adjustment processing for each frequency band in accordance with the in-vehicle environment, and conversion means for generating an analog audio signal from the data whose gain has been adjusted by the gain adjusting means.

  The in-vehicle multimedia device according to the present invention includes, in addition to the configuration of each of the above-described inventions, when the data acquisition unit has a request for acquisition of navigation data and a request for acquisition of audio data, Is given priority.

  The in-vehicle multimedia device according to the present invention is a portable player that transmits a command for prohibiting the reproduction processing by the player reproducing means based on the operation of the operation key in the portable player to the portable player in addition to the above-described configurations of the invention. It has management means.

  The in-vehicle multimedia device according to the present invention is such that, in addition to the configuration of each invention described above, a navigation connector is connected to a connector of a portable player that is connected to a computer device for writing audio data by a cable. is there.

  The in-vehicle multimedia apparatus according to the present invention is configured such that, in addition to the configuration of each of the above-described inventions, power supply means for supplying power to the portable player via a cable is connected to the navigation connector.

  The in-vehicle multimedia device according to the present invention causes the data acquisition means to acquire navigation data in addition to the configuration of each invention described above, and generates guidance route data to a predetermined point using the acquired data In addition, there is a guide route generation means for storing the generated guide route data in the storage means of the portable player.

  In the in-vehicle multimedia device according to the present invention, in addition to the configuration of each of the above-described inventions, the guide route generation unit obtains data related to a point stored as data other than navigation data in the storage unit of the portable player. The information is acquired by the means, and the acquired route data is generated using the acquired data.

  The in-vehicle multimedia device according to the present invention includes, in addition to the configurations of the above-described inventions, data relating to the points included in the navigation data acquired by the data acquisition unit by the guide route generation unit in the storage unit of the portable player. The data is stored as data other than the navigation data.

  The in-vehicle multimedia device according to the present invention includes, in addition to the configurations of the above-described inventions, current location storage means for storing the current location information of the vehicle acquired by the current location acquisition means in the storage means of the portable player. .

  A portable player according to the present invention includes a connector to which a computer device and an in-vehicle multimedia device are connected, a storage means in which audio data and navigation data are written by the computer device via the connector, and a storage means that stores the data. A player reproducing means for reproducing the audio data, and a data output means for outputting the data stored in the storage means via the connector when the in-vehicle multimedia device is connected to the connector. .

  According to the present invention, the portable player can be used for its original purpose, and can be used for navigation in the vehicle to improve the convenience for the user while reducing the cost of the user.

  Hereinafter, an in-vehicle multimedia system, an in-vehicle multimedia device, and a portable player according to embodiments of the present invention will be described with reference to the drawings. The in-vehicle multimedia system will be described as an example in which the in-vehicle multimedia system includes an in-vehicle multimedia device and a portable player.

  FIG. 1 is a block diagram showing a hardware configuration of an in-vehicle multimedia device 1 according to the embodiment of the present invention. The in-vehicle multimedia device 1 is installed in a vehicle, and can be navigated by connecting a portable player 2 shown in FIG. 2, and also reproduces music stored in the portable player 2 in the vehicle. is there. The portable player 2 is connected to the computer apparatus 3 shown in FIG. 3 and can store music data from the computer apparatus 3. Note that the vendor of the portable player 2 and the vendor of the in-vehicle multimedia device 1 may be different persons or the same person.

  In FIG. 1, an in-vehicle multimedia device 1 includes a central processing unit (CPU) 11, a memory 12, a liquid crystal monitor 13 as a display means for navigation, a touch panel 14, and a USB (Universal Serial Bus) host. The controller 15 includes a power supply circuit 16 as a power supply unit, a multi-drive 17, an inter-system I / F (InterFace), and a system bus 19 that connects them.

  The memory 12 stores a USB mass storage class program 21, a startup execution program 22, an AV (Audio Visual) system program 23, and a navigation system program 24. These programs are executed by the central processing unit. The central processing unit can process these programs in parallel by, for example, a time sharing method for processing the programs by time-sharing processing or a preemptive method for processing by interrupt processing based on program priority.

  The liquid crystal monitor 13 displays a full color image based on the display data on a display unit (not shown). The liquid crystal monitor 13 has a display unit having a size of about 7 inches, for example. The touch panel 14 is disposed so as to overlap the display unit of the liquid crystal monitor 13 and detects an operation position with respect to the display unit.

  The USB host controller 15 is connected with a USB connector 26 as a navigation connector. The power supply circuit 16 is also connected to the USB connector 26. The USB connector 26 includes an upstream series A type used on the host side such as the computer apparatus 3, a downstream series B type used on the device side such as a peripheral device, and a mini type smaller than these. and so on. When another device (portable player 2 in the case of this embodiment) is connected to the USB connector 26, the power supply circuit 16 supplies power of a predetermined voltage to the other device. The USB host controller 15 detects the connection of the other device and executes a predetermined connection process.

  The multi-drive 17 drives a DVD (Digital Versatile Disk) or a CD (Compact Disk), and outputs data recorded on these disks to the system bus. When audio data of a predetermined format such as a music CD format is recorded on the disc, the multi-drive 17 generates and outputs an audio signal from the audio data. Note that the multi-drive 17 of the in-vehicle multimedia device 1 may be one that mounts a plurality of disks and drives a disk selected from them.

  The in-vehicle multimedia device 1 includes a system microcomputer 27, a GPS (Global Positioning System) radio wave receiver 28, a gyro sensor 29, a vehicle speed pulse sensor 30, a tuner 31, and a part of in-vehicle playback means. And a DAC (Digital to Analog Converter) 32 as a conversion means, a source selector 33, a speaker 34 as an audio output means, and an amplifier 35.

  The GPS radio wave receiver 28 receives radio waves from GPS satellites. The gyro sensor 29 detects a direction based on geomagnetism. The vehicle speed pulse sensor 30 detects a vehicle speed pulse used for vehicle engine control. The system microcomputer 27 is connected to the intersystem I / F. The system microcomputer 27 specifies the current position of the vehicle based on the radio wave received by the GPS radio wave receiver 28, the direction detected by the gyro sensor 29, and the vehicle speed pulse detected by the vehicle speed pulse sensor 30. The system microcomputer 27 outputs the specified current position to the central processing unit 11 via the inter-system I / F 18.

  The tuner 31 receives FM broadcast radio waves and TV broadcast radio waves, and outputs video signals and audio signals superimposed on the received radio waves. The video signal is output to the liquid crystal monitor 13. The DAC 32 generates an analog audio signal based on a digital audio signal obtained by sampling the analog audio signal. The multi-drive 17, the tuner 31, and the DAC 32 are connected to the source selector 33. Based on the source selection signal from the system microcomputer 27, the source selector 33 selects one source from these, and connects the selected source device to the speaker 34. The speaker 34 outputs the audio signal of the device selected by the source selector 33. The speaker 34 outputs sound according to the waveform of the audio signal.

  FIG. 2 is a block diagram showing a hardware configuration of the portable player 2 connected to the in-vehicle multimedia device 1 of FIG. This portable player 2 includes a central processing unit 41, a non-volatile memory 42, a small liquid crystal device 43 as a player display means, a key device 44, a DAC 45 as a part of player playback means, and a USB device controller. 46, a hard disk drive 47 as a storage means, and a system bus 48 for connecting them.

  The nonvolatile memory 42 includes an EEPROM (Electrically Erasable Programmable Read-Only Memory), a flash memory, and other semiconductor memories. The nonvolatile memory 42 stores an execution management program 50, a key operation management program 51, a USB mass storage class program 52, and a decoder program 53. These programs are executed by the central processing unit 41.

  The small liquid crystal device 43 displays a text image based on the display data. The liquid crystal device 43 of the portable player 2 has a size of about 2 to 5 inches, for example. The key device 44 has a plurality of operation keys and outputs input data corresponding to the operated keys.

  A headphone terminal 56 and an audio output unit 58 of a dedicated connector 57 are connected to the DAC 45. The DAC 45 outputs the generated analog audio signal to the headphone terminal 56 and the audio output unit 58.

  The USB device controller 46 is connected with a USB connector 59 of the dedicated connector 57 as a connector of the portable player 2. A power supply circuit 60 is connected to the USB connector portion 59. The power supply circuit 60 includes a secondary battery 61. The power supply circuit 60 supplies a predetermined power based on the power supplied from the USB connector unit 59 or a predetermined power based on the power stored in the secondary battery 61 to each circuit of the portable player 2. The power supply circuit 60 charges the secondary battery 61 with power supplied from the USB connector unit 59.

  The hard disk drive 47 is a device having a large storage capacity of about 5 G (giga) bytes or more. The hard disk drive 47 stores, for example, music data 64 as an example of audio data, option data, and the like. As the option data, for example, address book data 65 as an example of data other than navigation data, navigation data 66, guide route data 67, travel log data 68 as other examples of data other than navigation data, and the like. is there. The navigation data 66 includes, for example, point data 70, node data 71, link data 72, display map data 73, and the like.

  The point data 70 is data of a plurality of points that can be selected as destinations for route guidance. The data of each point includes, for example, the latitude and longitude of the point or coordinate information that can be associated with the point and the point, the attribute information of the point such as the name, address, and telephone number of the facility at the point.

  The node data 71 is data of a plurality of nodes corresponding to road intersections where vehicles pass. The data of each node includes an identification number unique to each node, coordinate information such as an intersection corresponding to the node, cost information, and attribute information such as right turn prohibition such as the intersection.

  The link data 72 is data of a plurality of links corresponding to roads on which vehicles pass. The data of each link includes an identification number unique to each link, an identification number of a node to which the link is connected, cost information, attribute information such as a right turn prohibition of the road, and the like.

  The display map data 73 is map data in which an area that can be guided based on the navigation data 66 is viewed from above. The display map data 73 is composed of, for example, a plurality of texture data divided for each predetermined section. As such texture data, for example, a road map, a house map, a satellite photograph or the like can be used. Each texture data is associated with coordinate information for specifying the coordinates of each point in the texture.

  The travel log data 68 is data written by the in-vehicle multimedia device 1. The travel log data 68 is data in which information on a point where a vehicle on which the in-vehicle multimedia device 1 is mounted passes and information on a point where the vehicle is parked are stored. The location information includes location information and time information of the location.

  Each data stored in the hard disk drive 47 is managed and stored as a file for at least each data. For example, the song data 64 is generally managed as a file for each piece of data corresponding to one song. Further, the point data 70, the node data 71, the link data 72, the display map data 73, etc. constituting the navigation data 66 have a very large total data amount, which is a data amount of at least several hundred megabytes. Therefore, for example, the area corresponding to the navigation data 66 is divided into a plurality of sections, and the data for each section is managed as a file. In addition, the address book data 65, the guide route data 67, the travel log data 68, and the like may be divided into a plurality of data depending on the data amount and managed as a file for each of the divided data.

  FIG. 3 is a block diagram showing a hardware configuration of the computer apparatus 3 connected to the portable player 2 of FIG. The computer apparatus 3 includes a central processing unit 81, a RAM (Random Access Memory) 82, a hard disk drive 83, a display 84, a keyboard 85, a communication I / F 86, a multi drive 87, a USB host controller 88, And a system bus 89 for connecting them.

  A USB connector 90 as a connector of the computer apparatus 3 is connected to the USB host controller 88. A power supply circuit 91 is also connected to the USB connector 90. The power supply circuit 91 supplies power of a predetermined voltage to other devices connected to the USB connector 90 (portable player 2 in the case of this embodiment).

  The hard disk drive 83 is a device having a large storage capacity of, for example, about 100 GB or more. The hard disk drive 83 stores a USB mass storage class program 94, a player management program 95, and a navigation management program 96. These programs are read into the RAM 82 and executed by the central processing unit 81.

  It should be noted that the player management program 95 and the navigation management program 96 may be those recorded on a recording medium such as a CD-ROM and installed on the hard disk drive 83, even if the hard disk drive is transmitted via a transmission medium such as the Internet 98. 83 may be installed. Further, the vendor of the player management program 95 and the vendor of the navigation management program 96 may be different persons or the same person.

  The display 84 displays a full color image based on the display data. The display 84 has a size of, for example, 15 inches or more. The display 84 used in the computer device 3 has a higher resolution than the screen of the TV receiver. Therefore, a map based on the display map data 73 used for vehicle navigation described later can be displayed at the same resolution as that used for navigation. It becomes easy to create a drive plan at home using the display map data 73. The keyboard 85 has a plurality of operation keys (not shown) and outputs input data corresponding to the operated keys.

  The communication I / F 86 is connected to the Internet 98 by wired or wireless communication, and performs data communication with other computer devices 99 connected to the Internet 98. As other computer devices 99 connected to the Internet 98 in this way, there are, for example, a server device that provides music data, and a server device that provides navigation data and its update data.

  Next, operations of the in-vehicle multimedia device 1, the portable player 2, and the computer device 3 according to the embodiment having the above-described configuration will be described. In the following description, first, the operation when the portable player 2 is connected to the computer apparatus 3 will be described with reference to FIGS. 4 to 6, and then the portable player 2 will be mounted on the vehicle with reference to FIGS. The operation when connected to the multimedia device 1 will be described.

  FIG. 4 shows that the dedicated connector 57 of the portable player 2 and the USB connector 90 of the computer apparatus 3 are connected by the portable player dedicated cable 101 that can be connected to the USB connector, and the central processing unit 81 of the computer apparatus 3 is connected to the player management program. FIG. 95 is a functional block diagram showing functions realized when No. 95 is executed. The portable player dedicated cable 101 is a type of cable.

  When the portable player 2 and the computer apparatus 3 are connected, the power supply circuit 91 of the computer apparatus 3 supplies power to the power supply circuit 60 of the portable player 2. The power supply circuit 60 of the portable player 2 charges the secondary battery 61 with this power. The power supply circuit 60 of the portable player 2 supplies this power to other circuits of the portable player 2, such as the central processing unit 41.

  When the central processing unit 41 of the portable player 2 is activated, it first executes the execution management program 50. As a result, the execution management unit 106 is realized in the portable player 2.

  The execution management unit 106 causes the central processing unit 41 to execute the key operation management program 51. Accordingly, the key operation management unit 107 is realized in the portable player 2. The key operation management unit 107 selects, for example, plays music based on the operation of the key device 44.

  The execution management unit 106 causes the central processing unit 41 to execute the USB mass storage class program 52 when another device (here, the computer device 3) is connected to the USB connector unit 59. As a result, the USB mass storage class 108 as data output means is realized in the portable player 2.

  On the other hand, the central processing unit 81 of the computer apparatus 3 executes the USB mass storage class program 94 when it is activated. Thereby, the USB mass storage class 111 is realized in the computer apparatus 3.

  By realizing the pair of USB mass storage classes 108 and 111 in the computer device 3 and the portable player 2, a device in which the hard disk drive 47 of the portable player 2 is connected to the USB connector unit 59 (the computer device 3 in FIG. 4). ) Is recognized as storage. That is, the data stored in the hard disk drive 47 of the portable player 2 is recognized as a file by the USB mass storage class 111 of the computer device 3. The USB mass storage class 111 of the computer device 3 manages data in units of files and reads / writes data to / from the hard disk drive 47 of the portable player 2.

  In FIG. 4, when the player management program 95 is executed by the central processing unit 81 of the computer apparatus 3, a ripping unit 112 and an address book management unit 113 are realized.

  The ripping unit 112 outputs the display data of the startup screen to the display 84. The display 84 displays a startup screen by the ripping unit 112. On the startup screen by the ripping unit 112, for example, a selection button for a source of music data to be ripped is displayed. Examples of the source of the music data 64 include the Internet 98 and the multi drive 87. The ripping unit 112 selects the source of the music data 64 based on the input data from the keyboard 85.

  When the Internet 98 is selected as a source, the ripping unit 112 designates a URL (Uniform Resource Locator) of a server device that provides music data on the Internet 98, and instructs the communication I / F 86 to obtain a music data list. The communication I / F 86 sends a packet requesting a list of music data to the Internet 98. The server device that provides the music data receives the packet from the Internet 98 and transmits a response packet. The communication I / F 86 receives this response packet from the Internet 98 and outputs a list of music data included in the response packet to the ripping unit 112.

  When the multi drive 87 is selected as a source, the ripping unit 112 instructs the multi drive 87 to output a list of music data. The multi-drive reads data from the disc and outputs a list of music data.

  When a music data list is input from the selected source, the ripping unit 112 causes the display 84 to display the list. The ripping unit 112 selects music data to be ripped from the list based on the input data from the keyboard 85.

  When the music data to be ripped is selected, the ripping unit 112 acquires the music data from the previously selected source. Specifically, the communication I / F 86 receives the selected music data from the server device that provides the music data on the Internet 98, and the multi-drive reads the selected music data from the disk.

  Further, when the ripping unit 112 acquires the music data from the previously selected source, the ripping unit 112 attaches a predetermined file name to the acquired music data and supplies it to the USB mass storage class 111 as write data. This write data is transmitted from the USB mass storage class 111 of the computer apparatus 3 to the USB mass storage class 108 of the portable player 2 via the USB connector 90, the portable player dedicated cable 101, and the USB connector unit 59 of the portable player 2. The The USB mass storage class 108 of the portable player 2 writes this write data to the hard disk drive 47. As a result, the music data 64 selected by the ripping unit 112 is stored in the hard disk drive 47 of the portable player 2.

  The ripping unit 112 writes the music data acquired from the Internet 98 or the like as it is to the hard disk drive 47 of the portable player 2. As will be described later, the in-vehicle multimedia device 1 reproduces music data 64 stored in the hard disk drive 47 of the portable player 2.

  Therefore, even if the digital copy of the music data is controlled by SCMS (Serial Copy Management System) or the like, the music data corresponding to this can be reproduced in the portable player 2 and the vehicle. The user does not need to purchase the same music data separately from the data stored in the portable player 2 in order to use the music data in the vehicle. The user only needs to acquire (copy) music data once.

  The address book management unit 113 first requests the USB mass storage class 111 of the computer device 3 to obtain a list of files stored in the hard disk drive 47 of the portable player 2. Based on this request, the USB mass storage class 111 of the computer apparatus 3 outputs a file list transmission request. This file list transmission request is transmitted to the USB mass storage class 108 of the portable player 2 via the USB connector 90, the portable player dedicated cable 101, and the USB connector unit 59 of the portable player 2. The USB mass storage class 108 of the portable player 2 generates a list of file names of data stored in the hard disk drive 47 and transmits it to the USB mass storage class 111 of the computer apparatus 3.

  When the USB mass storage class 111 of the computer apparatus 3 receives the list of file names, the address book management unit 113 determines whether or not the file name of the address book data designated in advance is included therein. . If the predetermined file name is included, the address book management unit 113 instructs acquisition of the file having the file name. The USB mass storage class 111 of the computer apparatus 3 transmits this file acquisition request to the USB mass storage class 108 of the portable player 2, and the USB mass storage class 108 of the portable player 2 sends the data of the designated file name. Then, the data is transmitted to the USB mass storage class 111 of the computer apparatus 3.

  When the USB mass storage class 111 of the computer apparatus 3 receives the address book data 65, the address book management unit 113 displays the address book included in the address book data 65 on the display 84. The display 84 displays, for example, an address, name, telephone number, etc. for each individual or store.

  If the file name of the address book data 65 is not included in the acquired file name list, the address book management unit 113 causes the display 84 to display an address book that does not include any address.

  The address book management unit 113 adds the text data input from the keyboard 85 to the acquired address book data, and causes the display 84 to display the address book data with the added data. Further, when a save instruction is input from the keyboard 85, the address book management unit 113 supplies the address book data at that time to the USB mass storage class 111 as a write data with a predetermined file name. When this write data is received from the USB mass storage class 111 of the computer apparatus 3, the USB mass storage class 108 of the portable player 2 writes this into the hard disk drive 47 as the address book data 65. As a result, the address book data 65 created or updated by the address book management unit 113 is stored in the hard disk drive 47 of the portable player 2.

  The address book data 65 only needs to have a data structure recorded for each address, for example. An example of a file having such a data structure is a CSV (Comma Separated Value) format file. In a CSV format file, each field such as address, name, and telephone number is separated by a comma (,) in each address record. In addition, the CSV format file has a record indicating the data attribute of the field included in each record. The enumeration order of attributes in the record indicating the data attribute of this field is associated with the enumeration order of data in each field in each data record.

  As described above, the music data 64 and the address book data 65 can be written to the hard disk drive 47 of the portable player 2 under the environment where the central processing unit 81 of the computer apparatus 3 executes the player management program 95. it can. Further, the secondary battery 61 of the portable player 2 can be charged by connecting the portable player 2 to the computer device 3.

  FIG. 5 is a functional block diagram showing functions realized when the portable player 2 is activated alone.

  When the portable player 2 is activated without connecting other devices such as the computer device 3, the power supply circuit 60 supplies the power stored in the secondary battery 61 to the central processing device 41 and the like. When the central processing unit 41 of the portable player 2 is activated, it first executes the execution management program 50, whereby the execution management unit 106 is realized. The execution management unit 106 causes the central processing unit 41 to execute the key operation management program 51 to realize the key operation management unit 107.

  The key operation management unit 107 reads the file name of the music data 64 stored in the hard disk drive 47 based on the operation of the key device 44. The key operation management unit 107 generates display data for displaying the read file name and outputs it to the liquid crystal device 43. The liquid crystal device 43 displays a list of music data 64. Further, the key operation management unit 107 reads the file name of another music data 64 stored in the hard disk drive 47 based on the operation of the key device 44 and causes the liquid crystal device 43 to display the file name.

  When a playback key (not shown) of the key device 44 is operated in a state where the file name of the predetermined music data 64 is displayed on the liquid crystal device 43, the key operation management unit 107 stores the music data 64 of the file name. Reproduction is instructed to the execution management unit 106.

  The execution management unit 106 causes the central processing unit 41 to execute the decoder program 53. As a result, the portable player 2 implements the decoder 109 as a part of the player playback means. The decoder 109 reads the music data 64 having the file name selected by the key operation management unit 107 from the hard disk drive 47. The decoder 109 generates digital audio data based on the read music data 64. The decoder 109 outputs the generated digital audio data to the DAC 45. The DAC 45 generates an analog audio signal based on the digital audio signal and outputs the analog audio signal to the headphone terminal 56.

  Therefore, the user of the portable player 2 selects a predetermined file name using the key device 44 of the portable player 2, and rips it from the earphone connected to the headphone terminal 56 to the portable player 2 using the computer device 3. I can listen to music. The portable player 2 can be used as a music server by connecting the headphone terminal 56 to a stereo component amplifier or the like. Also, as will be described later, music can be played back and listened to in the car in the portable player 2, so that the user can enjoy the favorite music stored in the portable player 2 without interruption in the home, outdoors and in the car. Can do.

  FIG. 6 shows that the dedicated connector 57 of the portable player 2 and the USB connector 90 of the computer apparatus 3 are connected by the portable player dedicated cable 101 that can be connected to the USB connector, and the central processing unit 81 of the computer apparatus 3 is operated by the navigation management program. FIG. 96 is a functional block diagram showing functions realized when 96 is executed.

  As in the case of FIG. 4, the portable player 2 operates with the electric power supplied from the computer device 3 by connecting the portable player 2 and the computer device 3. In the portable player 2, an execution management unit 106, a USB mass storage class 108, and a key operation management unit 107 are realized. The central processing unit 81 of the computer apparatus 3 executes the USB mass storage class program 94, and the USB mass storage class 111 is realized. The USB mass storage class 111 manages data in units of files and reads / writes data from / to the hard disk drive 47 of the portable player 2.

  Further, the central processing unit 81 of the computer device 3 executes the navigation management program 96, whereby a navigation data management unit 114, a drive plan generation unit 115, and a travel reproduction unit 116 as navigation data writing means are provided. Realized. The travel reproduction unit 116 will be described later.

  The navigation data management unit 114 outputs the display data of the startup screen to the display 84. The display 84 displays a startup screen by the navigation data management unit 114. The startup screen by the navigation data management unit 114 includes, for example, a selection button for saving the navigation data 66, a selection button for updating the navigation data 66, a selection button for creating a drive plan, a selection button for reproducing a trip, and the like. Is displayed.

  When the selection button for saving the navigation data 66 is selected based on the input data from the keyboard 85, the navigation data management unit 114 instructs the multi-drive 87 to output the navigation data 66. The multi drive 87 reads and outputs data from the inserted disc. The navigation data management unit 114 also supplies the data read by the multi-drive 87 to the USB mass storage class 111 as write data for each file. This write data is transmitted from the USB mass storage class 111 of the computer apparatus 3 to the USB mass storage class 108 of the portable player 2 via the USB connector 90, the portable player dedicated cable 101, and the USB connector unit 59 of the portable player 2. The The USB mass storage class 108 writes this write data into the hard disk drive 47. As a result, the navigation data 66 instructed by the navigation data management unit 114 is stored in the hard disk drive 47 of the portable player 2.

  When the selection button for updating the navigation data 66 is selected based on the input data from the keyboard 85, the navigation data management unit 114 specifies the URL of the server device that provides the update data for the navigation data 66 on the Internet 98. Then, the communication I / F 86 is instructed to acquire the update data. The communication I / F 86 sends a packet requesting update data to the Internet 98 and receives the update data from the server device. The navigation data management unit 114 also supplies the update data received by the communication I / F 86 to the USB mass storage class 111 as write data for each file. The USB mass storage class 108 of the portable player 2 writes this write data to the hard disk drive 47. As a result, the navigation data 66 updated by the update data is stored in the hard disk drive 47 of the portable player 2.

  In the above description, the navigation data management unit 114 acquires the first navigation data 66 from the disk inserted in the multi-drive 87 and acquires update data from the server device on the Internet 98. In addition, the navigation data management unit 114 may acquire the first navigation data 66 from a server device on the Internet 98, or may acquire update data from a disk inserted in the multi-drive 87. Good.

  When a selection button for creating a drive plan is selected based on input data from the keyboard 85, the navigation data management unit 114 instructs the drive plan generation unit 115 to create a drive plan.

  The drive plan generation unit 115 acquires the point data 70 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 111 and 108. The drive plan generation unit 115 causes the display 84 to display a list of a plurality of points included in the acquired point data 70. The drive plan generation unit 115 selects a predetermined point as a destination based on the input data from the keyboard 85, for example.

  In addition, the drive plan generation unit 115 acquires the display map data 73 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 111 and 108. The drive plan generation unit 115 causes the display 84 to display a map image based on the acquired display map data 73. The drive plan generation unit 115 selects a predetermined point on the map based on the input data from the keyboard 85, for example, as a departure place.

  The drive plan generation unit 115 acquires the travel log data 68 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 111 and 108, and corresponds to the latest time included in the travel log data 68. The point indicated by the position information can also be selected as the departure place. The point to which the latest time corresponds is the end point where navigation was last performed using the portable player 2, and it is highly likely that the vehicle on which the in-vehicle multimedia device 1 is mounted is still stopped. .

  In addition, the drive plan generation unit 115 specifies the position of the home or the like on the display map, and stores the position information in the hard disk drive 83 of the computer device 3 or the hard disk drive 47 of the portable player 2 as the default position information of the departure place. From the next time, the point indicated by the stored default position information may be selected as the departure point.

  When the departure place and the destination are selected, the drive plan generation unit 115 reads the node data 71 and the link data 72 from the hard disk drive 47 of the portable player 2 using the USB mass storage class 111, and starts using these data. Search for a route from the ground to the destination. Then, the drive plan generation unit 115 selects a route having the lowest cost from the departure point to the destination as the guide route from the searched routes. The drive plan generating unit 115 allocates the selected guide route on the map and displays it on the display 84.

  When the user's approval of the guide route generated based on the input data from the keyboard 85 is confirmed, the drive plan generating unit 115 supplies the generated guide route data to the USB mass storage class 111 as write data. The USB mass storage class 108 of the portable player 2 writes this write data to the hard disk drive 47. As a result, the guide route data 67 generated by the drive plan generation unit 115 is stored in the hard disk drive 47 of the portable player 2.

  In FIG. 7, the dedicated connector 57 of the portable player 2 and the USB connector 26 of the in-vehicle multimedia device 1 are connected by the portable player dedicated cable 101 that can be connected to the USB connector, and the central processing unit 11 of the in-vehicle multimedia device 1 is connected. It is a functional block diagram which shows the function implement | achieved when executes the starting time execution program 22. FIG.

  As in the case of FIG. 4, by connecting the portable player 2 and the in-vehicle multimedia device 1, the portable player 2 operates with power supplied from the power supply unit 16 of the in-vehicle multimedia device 1. In the portable player 2, an execution management unit 106, a USB mass storage class 108, and a key operation management unit 107 are realized. The central processing unit 11 of the in-vehicle multimedia device 1 executes the USB mass storage class program 21 to realize the USB mass storage class 121 as a part of the data acquisition unit. The USB mass storage class 121 manages data in units of files and reads / writes data to / from the hard disk drive 47 of the portable player 2.

  In addition, when the central processing unit 11 of the in-vehicle multimedia device 1 executes the startup execution program 22, the in-vehicle multimedia device 1 includes a function selection unit 122 as a portable player management unit and a part of the data acquisition unit. The data input / output control unit 123 is realized.

  The data input / output control unit 123 receives a data input / output request from the function selection unit 122 or the like. The data input / output control unit 123 instructs the USB mass storage class 121 to write or read a data file related to the received request.

  In addition, when there are a plurality of data input / output requests, the data input / output control unit 123 instructs the USB mass storage class 121 to write or read the data files related to the plurality of requests one by one. To do. When a plurality of data input / output requests include an acquisition request for navigation data 66 or an acquisition request for guide route data 67, the data input / output control unit 123 processes these requests with the highest priority. The data input / output control unit 123 processes requests other than the acquisition request for the navigation data 66 and the acquisition request for the guide route data 67 in the received order.

  The function selection unit 122 determines whether or not the navigation function can be used in the in-vehicle multimedia device 1. The function selection unit 122 determines whether or not the navigation function can be used based on whether or not the navigation data 66 is stored in the portable player 2 connected to the in-vehicle multimedia device 1.

  Specifically, the function selection unit 122 requests the data input / output control unit 123 for a list of file names stored in the hard disk drive 47 of the portable player 2. Based on the request, the data input / output control unit 123 instructs the USB mass storage class 121 to read the list of file names related to the request. Based on this read instruction, the USB mass storage class 121 sends a request for obtaining a list of file names to the USB of the portable player 2 via the USB connector 26, the portable player dedicated cable 101, and the USB connector unit 59 of the portable player 2. Send to mass storage class 108. The USB mass storage class 108 of the portable player 2 reads file names from the hard disk drive 47 of the portable player 2, generates a list thereof, and transmits the generated list to the USB mass storage class 121 of the in-vehicle multimedia device 1. The data input / output control unit 123 supplies the list of file names received by the USB mass storage class 121 to the function selection unit 122 as a list of file names in response to the request.

  When the function selecting unit 122 confirms that predetermined navigation data 66 is stored in the hard disk drive 47 of the portable player 2 based on the list of file names, the function selecting unit 122 selects a navigation function selection button and an AV function selection button. Display data for a startup screen for displaying the above and the like, and output to the liquid crystal monitor 13. The liquid crystal monitor 13 displays this startup screen.

  Note that the function selection unit 122 may determine the presence or absence of the navigation data 66 based on whether or not all of the predetermined navigation data 66 is stored in the hard disk drive 47 of the portable player 2. The presence or absence of the navigation data 66 may be determined based on whether or not a specific file name included in the data for use 66 is stored in the hard disk drive 47.

  When the navigation function selection button is selected based on the input data from the touch panel 14, the function selection unit 122 generates a key operation inhibition command. The key operation prohibition command is a command for prohibiting the reproduction processing of the music data 64 by the decoder 109 based on the operation of the key device 44 of the portable player 2.

  The function selection unit 122 transmits the generated key operation prohibition command to the execution management unit 106 of the portable player 2. Specifically, the function selection unit 122 supplies the generated key operation prohibition command directly to the USB mass storage class 121. The USB mass storage class 121 of the in-vehicle multimedia device 1 transmits this key operation prohibition command to the USB mass storage class 108 of the portable player 2. The USB mass storage class 108 supplies the received key operation prohibition command to the execution management unit 106.

  When receiving the key operation prohibition command, the execution management unit 106 of the portable player 2 stops the key operation management unit 107. Specifically, for example, the execution of the key operation management program 51 by the central processing unit 41 of the portable player 2 is ended.

  After generating the key operation prohibition command, the function selection unit 122 instructs the central processing unit 11 to execute the navigation system program 24.

  FIG. 8 is a functional block diagram showing functions realized by the central processing unit 11 of the in-vehicle multimedia device 1 executing the navigation system program 24 based on an instruction from the function selection unit 122. When the central processing unit 11 of the in-vehicle multimedia device 1 executes the navigation system program 24, the in-vehicle multimedia device 1 includes a guide route generation unit 124 as a guide route generation unit, a navigation unit, a current location guide unit, and a route. A route guidance unit 125 as a guidance unit and a current location storage unit and a current location acquisition unit 126 as a current location acquisition unit are realized. The functional blocks described in the portable player 2 in FIG. 8 are the same as the functional blocks in FIG.

  In FIG. 8, the function selection unit 122 and the data input / output control unit 123 are continuously realized. Although not shown in FIG. 8, if audio is being played back, a playback setting unit 127, a decoder 128, and an equalizer 129 in FIG.

  The current location acquisition unit 126 acquires the current location of the vehicle. The system microcomputer 27 specifies the current position of the vehicle based on the radio wave received by the GPS radio wave receiver 28, the direction detected by the gyro sensor 29, and the vehicle speed pulse detected by the vehicle speed pulse sensor 30. The current location acquisition unit 126 acquires coordinate information of the current location of the vehicle specified by the system microcomputer 27.

  First, the guidance route generation unit 124 requests the data input / output control unit 123 to acquire the point data 70. Based on the request, the data input / output control unit 123 acquires the point data 70 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 121 and 108. The guide route generation unit 124 causes the liquid crystal monitor 13 to display a list of a plurality of points included in the point data 70 acquired by the data input / output control unit 123. The guide route generation unit 124 selects a predetermined point as, for example, a destination based on input data from the touch panel 14.

  In addition, the guide route generation unit 124 requests the data input / output control unit 123 to acquire the address book data 65 stored in the hard disk drive 47 of the portable player 2 and location information such as home. Based on the request, the data input / output control unit 123 uses the USB mass storage classes 121 and 108 to acquire the address book data 65 stored in the hard disk drive 47 of the portable player 2 and location information such as home. . The guide route generation unit 124 displays the address book data 65 and the home list acquired by the data input / output control unit 123 on the liquid crystal monitor 13. The guide route generation unit 124 selects a predetermined point, for example, as a destination from the list displayed based on the input data from the touch panel 14.

  When a destination or the like is selected, the guide route generation unit 124 requests the data input / output control unit 123 to acquire the node data 71 and the link data 72. Based on the request, the data input / output control unit 123 acquires the node data 71 and the link data 72 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 121 and 108. The guide route generator 124 searches for a route from the current location to the destination using the node data 71 and the link data 72 acquired by the data input / output controller 123. As the current location, the current location of the vehicle acquired by the current location acquisition unit 126 is used. Then, the guide route generation unit 124 selects, as a guide route, a route having the lowest cost from the departure place to the destination from the searched routes.

  The guide route generation unit 124 requests the data input / output control unit 123 to save data of the selected guide route. Based on the request, the data input / output control unit 123 supplies the data of the guide route to the USB mass storage class 121 as write data. The USB mass storage class 108 of the portable player 2 writes this write data to the hard disk drive 47. As a result, the guide route data 67 generated by the guide route generator 124 is stored in the hard disk drive 47 of the portable player 2.

  In addition, after requesting the storage of the guide route data 67, the guide route generation unit 124 causes the liquid crystal monitor 13 to display a screen for confirming whether or not to add a point such as the selected destination to the address book. When the user's approval is confirmed based on the input data from the touch panel 25, the guide route generation unit 124 enumerates the address, name, telephone number, etc. of the personal home or store at the selected point in the address book data 65. Records that are included in order are generated, and the data input / output control unit 123 is requested to store the generated records. The data input / output control unit 123 writes the record into the portable player 2 using the USB mass storage classes 121 and 108 based on the request. The USB mass storage class 108 of the portable player 2 adds this record to the address book data 65.

  The route guidance unit 125 first requests the data input / output control unit 123 to obtain the guide route data 67. Based on the request, the data input / output control unit 123 acquires the guide route data 67 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 121 and 108. The guide route data 67 stored in the hard disk drive 47 of the portable player 2 is generated by the guide route generator 124 or generated by the drive plan generator 115 of the computer device 3.

  When the guide route data 67 is acquired by the data input / output control unit 123, the route guide unit 125 uses the guide route data 67 to guide the route.

  The route guidance by the route guidance unit 125 is specifically as follows. The route guidance unit 125 first acquires the coordinate information of the current location of the vehicle from the current location acquisition unit 126. The route guidance unit 125 requests the data input / output control unit 123 to obtain the display map data 73, the link data 72, the node data 71, and the guide route data 67 in a region within a predetermined range from the acquired current location. Based on the request, the data input / output control unit 123 uses the USB mass storage classes 121 and 108 from the hard disk drive 47 of the portable player 2 to display map data 73 and link data for a region within a predetermined range from the current location. 72, node data 71 and guide route data 67 are acquired.

  When these data are acquired by the data input / output control unit 123, the route guidance unit 125 generates display data of the guidance screen using the data and outputs the display data to the liquid crystal monitor 13. The liquid crystal monitor 13 displays this guidance screen. On this guidance screen, a map that falls within a predetermined display range from the current location is displayed. In addition, on the map of the guidance screen, a current location mark is displayed at a display position corresponding to the current location of the vehicle, and the guidance route in the guidance screen is displayed as a guidance route line.

  The route guiding unit 125, for example, at every predetermined time interval or every predetermined position change of the current location, the acquisition request processing of the navigation data 66 for the area within the predetermined range from the current location, the display screen generation processing, Execute. When the current location moves, the route guidance unit 125 causes the data input / output control unit 123 to acquire the display map data 73, the link data 72, the node data 71, and the guidance route data 67 of an area within a predetermined range from the new current location. The new data is used to display on the liquid crystal monitor 13 a map that falls within a predetermined display range from the current location. Thereby, a map having the current location of the vehicle and the guidance route is continuously displayed on the liquid crystal monitor 13.

  The user of the in-vehicle multimedia device 1 can move according to the guide route by moving the vehicle so that the current location mark moves on the guide route line, and can move from the current location to a desired destination.

  The route guidance unit 125 executes the route guidance process described above, and stores the current location of the vehicle acquired from the current location acquisition unit 126 for each predetermined time interval and for each parking stop as the backside process. Specifically, the route guidance unit 125 generates a record that includes information on the current location of the vehicle acquired from the current location acquisition unit 126 and time information at which it is acquired at every predetermined time interval and every parking and stopping. The route guidance unit 125 requests the data input / output control unit 123 to save the generated record. Based on the request, the data input / output control unit 123 uses the USB mass storage class 121 to write the record to the hard disk drive 47 of the portable player 2. The USB mass storage class 108 of the portable player 2 additionally writes the record in the travel log data 68. As a result, the travel log data 68 in which the position where the vehicle has moved and the time are stored in association with each other is stored in the hard disk drive 47 of the portable player 2.

  Here, the operation of the travel reproduction unit 116 realized in the computer apparatus 3 of FIG. 6 will be described. When the navigation data management unit 114 realized in the computer device 3 selects a travel reproduction selection button based on the input data from the keyboard 85, the navigation data management unit 114 instructs the travel reproduction unit 116 to reproduce the trip.

  The travel reproduction unit 116 acquires the travel log data 68 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 111 and 108. The travel reproduction unit 116 specifies an area including a plurality of points included in the acquired travel log data 68. The travel reproduction unit 116 acquires the display map data 73 of the specified area from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 111 and 108.

  After acquiring the travel log data 68 and the display map data 73, the travel reproduction unit 116 generates travel reproduction screen display data and outputs it to the liquid crystal monitor 13. The liquid crystal monitor 13 displays this travel reproduction screen. A map of the specified area is displayed on this travel reproduction screen. In addition, a travel reproduction line in which points included in the travel log data 68 are connected in order of time in the travel log data 68 is displayed on the map of the travel reproduction screen. Note that a link or node identification number of the point may be added to each record of the travel log data 68, and a travel reproduction line may be drawn along the link or node.

  Further, when the hard disk drive 83 of the computer device 3 stores, for example, EXIF image data captured during the trip, the travel reproduction unit 116 displays the image of the EXIF image data based on an instruction from the keyboard 85. Map on the travel reproduction screen. The EXIF image data may be stored in another device connected to the computer device 3, such as a card reader or a digital camera.

  Some EXIF image data includes information indicating the location of the thumbnail image of the image in the header information. The travel reproduction unit 116 may map the thumbnail image on the travel reproduction screen instead of the image of the EXIF image data.

  Further, the header information of the EXIF image data includes the position information of the imaged point if the image is captured by a digital camera with a GPS function. The travel reproduction unit 116 may map an image on the travel reproduction screen using the position information included in the header information. In addition, the header information of the EXIF image data of an image captured by a digital camera or the like generally includes time information of the captured image. The travel reproduction unit 116 compares the time information included in the header information with the time information of a plurality of points in the travel log data 68 and, for example, displays an image at a point that is the time immediately before the time information included in the header information. You may make it map.

  FIG. 9 is a functional block diagram showing functions realized by the central processing unit 11 of the in-vehicle multimedia device 1 executing the AV system program 23 based on an instruction from the function selection unit 122.

  If the function selection unit 122 in FIG. 9 determines that the predetermined navigation data 66 is not stored in the list read from the portable player 2, the function selection unit 122 immediately instructs the central processing unit 11 to execute the AV system program 23. . In addition, when the function selection unit 122 selects a navigation function selection button based on input data from the touch panel 14, the function selection unit 122 instructs the central processing unit 11 to execute the AV system program 23. As a result, the central processing unit 11 of the in-vehicle multimedia device 1 executes the AV system program 23.

  When the central processing unit 11 of the in-vehicle multimedia device 1 executes the AV system program 23, the in-vehicle multimedia device 1 includes a reproduction setting unit 127, a decoder 128 as a part of the in-vehicle reproduction unit, and the in-vehicle reproduction unit. And an equalizer 129 as a gain adjusting means. The functional blocks described in the portable player 2 in FIG. 9 are the same as the functional blocks in FIG.

  In FIG. 9, the function selection unit 122 and the data input / output control unit 123 are continuously realized. Although not shown in FIG. 9, if navigation is being performed, the guide route generation unit 124, the route guidance unit 125, and the current location acquisition unit 126 shown in FIG. 8 are realized at the same time.

  The playback setting unit 127 first determines whether or not the portable player 2 is connected to the in-vehicle multimedia device 1. Specifically, the playback setting unit 127 determines whether the portable player 2 is connected to the USB connector 26 based on, for example, whether power is supplied by the power supply unit.

  The playback setting unit 127 determines that the portable player 2 is connected to the in-vehicle multimedia device 1 when the portable player 2 is connected to the USB connector 26. In other cases, the playback setting unit 127 determines that the portable player 2 is not connected to the in-vehicle multimedia device 1.

  When it is determined that the portable player 2 is connected to the in-vehicle multimedia device 1, the playback setting unit 127 causes the liquid crystal monitor 13 to display a source selection screen having a CD playback button, a tuner playback button, and a music server playback button. .

  If it is determined that the portable player 2 is not connected to the in-vehicle multimedia device 1, the playback setting unit 127 displays a source selection screen having a CD playback button and a tuner playback button on the liquid crystal monitor 13.

  Note that these source selection screens may include other playback buttons such as a DVD playback button. Even when the playback setting unit 127 determines that the portable player 2 is not connected, the playback selection unit 127 displays a source selection screen having a music server playback button on the LCD monitor 13 and selects the music server playback button. In such a case, a warning message such as “cannot be used” may be displayed.

  When the CD playback button is selected based on the input data from the touch panel 14, the playback setting unit 127 instructs the multi drive 17 to play the CD, and causes the source selector 33 to select the multi drive 17.

  When the tuner playback button is selected based on the input data from the touch panel 14, the playback setting unit 127 instructs the tuner 31 to play back, and causes the source selector 33 to select the tuner 31.

  The audio signal from the source selected by the source selector 33 is amplified by the amplifier 35 and output to the speaker 34. The speaker 34 outputs a sound corresponding to the sound signal.

  When the music server playback button is selected based on the input data from the touch panel 14, the playback setting unit 127 first requests the data input / output control unit 123 to obtain a list of music data 64, and The DAC 32 is selected.

  Based on the request, the data input / output control unit 123 instructs the USB mass storage class 121 to read the list of music data 64 related to the request. The USB mass storage class 121 transmits a request to acquire a list of music data 64 to the USB mass storage class 108 of the portable player 2 based on this read instruction. The USB mass storage class 108 reads the file name of the music data 64 from the hard disk drive 47, generates a list thereof, and transmits the generated list to the USB mass storage class 121 of the in-vehicle multimedia device 1.

  When the USB mass storage class 121 acquires the list of music data 64, the playback setting unit 127 displays a screen for displaying the list on the liquid crystal monitor 13. The reproduction setting unit 127 selects music data 64 to be reproduced based on input data from the touch panel 14.

  When the music data 64 to be reproduced is selected, the reproduction setting unit 127 instructs the decoder 128 to reproduce the selected music data 64. The decoder 128 requests the data input / output control unit 123 to acquire the instructed music data 64. The data input / output control unit 123 acquires the music data 64 from the hard disk drive 47 of the portable player 2 using the USB mass storage classes 121 and 108 based on the request. The decoder 109 generates digital audio data based on the music data 64 acquired by the data input / output control unit 123. The decoder 109 outputs the generated digital audio data to the equalizer 129.

  The equalizer 129 decomposes the digital audio data into a plurality of components for each frequency band, increases / decreases the gain of each component, and further synthesizes the components for the increased / decreased frequency band. The equalizer 129 performs gain adjustment in accordance with the vehicle interior environment. Specifically, for example, the equalizer 129 increases / decreases the overall gain of the digital audio data so that the same frequency component as the running noise is larger than the running noise, and the acoustic effect of a concert hall and the like in the vehicle The gain for each frequency component is increased or decreased so as to cancel the difference. In addition to this, for example, the equalizer 129 increases or decreases the gain for each frequency component so as to cancel the difference between the audio signal reproduced by the audio player 2 and the audio signal output by the DAC 32 or the amplifier 35 based on the output of the decoder 128. May be.

  The equalizer 129 outputs digital audio data in which the gain for each frequency band is adjusted to the DAC 32. The DAC 32 generates an analog audio signal based on the digital audio signal and outputs the analog audio signal to the source selector 33. The source selector 33 selects the DAC 32. Therefore, the audio signal output from the DAC 32 is output to the speaker 34 after being amplified by the amplifier 35. The speaker 34 outputs sound according to the waveform of this audio signal.

  As described above, in this embodiment, the portable player 2 having the hard disk drive 47 is connected to the computer apparatus 3, and the music data 64 and the navigation data 66 are written from the computer apparatus 3 to the hard disk drive 47. In addition, by connecting the portable player 2 in which the navigation data 66 is written in the hard disk drive 47 to the in-vehicle multimedia device 1, the navigation data 66 is used to generate a guidance route in the vehicle and use the guidance route. Cars are guided. Further, the music data 64 stored in the hard disk drive 47 of the portable player 2 is read into the in-vehicle multimedia device 1 and decoded and reproduced in the vehicle.

  Therefore, in this embodiment, the navigation data 66 used in the vehicle is stored in the portable player 2 that is carried and used by the user on a daily basis, and the navigation data 66 stored in the portable player 2 is used. Car route guidance and current location guidance. Therefore, the user does not need to carry anything other than the portable player 2. The in-vehicle multimedia device 1 itself does not need to include a large-capacity hard disk drive or the like for storing data such as the navigation data 66.

  As a result, in this embodiment, while the portable player 2 can be used for the original purpose, it can be used for navigation in the vehicle, and the convenience for the user can be improved while reducing the burden on the user. .

  Further, by connecting the portable player 2 to the computer device 3, maintenance such as updating of the navigation data 66 can be performed. There is no need to install a dedicated device for maintaining the navigation data 66 in the home. The user can easily maintain the navigation data 66 simply by connecting the portable player 2 at hand to the computer device 3.

  In addition, in this embodiment, the music data 64 stored in the portable player 2 is reproduced by the decoder 128 of the in-vehicle multimedia device 1, and the reproduced data is converted into an analog audio signal by the DAC 32, and the source selector 33 Then, the sound is output from the speaker 34 after amplification by the amplifier 35. Therefore, the user does not need to separately save the same data as the music data 64 stored in the portable player 2 in the in-vehicle multimedia device 1, for example. Further, the in-vehicle multimedia device 1 does not need to include a ripping unit for ripping the music data 64 in the in-vehicle multimedia device 1 itself.

  In particular, in this embodiment, the digital audio data generated by the decoder 128 is output to the equalizer 129, and the equalizer 129 adjusts the gain according to the in-vehicle environment. Therefore, for example, an analog audio signal reproduced by the decoder 109 and the DAC 45 of the portable player 2 is input from an audio input terminal provided in the in-vehicle multimedia device 1, and sound based on this audio signal is output from the speaker 34. Thus, the music data 64 can be reproduced with a sound suitable for the in-vehicle environment.

  In this embodiment, the data input / output control unit 123, when there is an acquisition request for the navigation data 66 or an acquisition request for the guide route data 67, and other data input / output requests, 66 acquisition processing and guidance route data 67 acquisition processing are preferentially processed. Therefore, for example, even if there is an acquisition request for the music data 64 by the decoder 128 first, the acquisition of the navigation data 66 and the guide route data 67 is not awaited. As a result, the guidance route generation processing by the guidance route generation unit 124 and the route guidance processing by the route guidance unit 125 are not interrupted due to data waiting. The guide route generation unit 124 and the route guide unit 125 have the same data waiting time as when the hard disk drive storing the navigation data 66 and the guide route data 67 is connected to the system bus 19 of the in-vehicle multimedia device 1. Each process can be executed with.

  In addition to this, for example, the data input / output control unit 123 processes the acquisition request of the navigation data 66 and the guidance route data 67 by the route guidance unit 125 with the highest priority over the other data input / output requests. You may do it. As a result, the route guidance processing by the route guidance unit 125 is not interrupted due to data waiting.

  In addition, for example, the data input / output control unit 123 may simply execute data input / output processing in the order of data input / output requests. The data input / output control unit 123 may preferentially process the music data 64 acquisition process.

  In this embodiment, the function selection unit 122 transmits a key operation prohibition command to the portable player 2, and the execution management unit 106 of the portable player 2 stops the key operation management unit 107 when receiving the key operation prohibition command. . Therefore, even if the key device 44 is operated, the portable player 2 does not operate according to the operation. Even if the key device 44 is operated while the in-vehicle multimedia device 1 is using the portable player 2, an unintended operation state unexpected by the in-vehicle multimedia system will not occur. Further, even if the user operates the key device 44 of the portable player 2, the portable player 2 does not respond to it, so that the portable player 2 itself is not used in the vehicle, and safety is improved.

  In this embodiment, the USB connector 26 of the in-vehicle multimedia device 1 is connected to the USB connector portion 59 of the portable player 2 by the portable player dedicated cable 101. Therefore, it is not necessary to newly provide a connector for connecting the portable player 2 to the in-vehicle multimedia device 1 by using a USB connector or the like used for input / output of the music data 64 for input / output of other data. .

  The portable multimedia device 1 can be connected to any portable player 2 that can be connected by a USB cable. For this reason, even if the portable player 2 is changed to another portable player, the other portable player can be used by being connected to the in-vehicle multimedia device 1. Specifically, for example, it is possible to construct an in-vehicle multimedia system that matches the user's preference, such as an in-vehicle audio device. Even if the portable player 2 breaks down, another portable player 2 can be connected and the vehicle-mounted multimedia device 1 can be used to continue using the vehicle-mounted navigation system. The in-vehicle navigation system can be upgraded by changing the portable player 2 to one having a larger capacity.

  In addition to USB, there are I / Fs such as IEEE (the Institute of Electrical and Electrical Engineers) 1394, IEEE 802.3, etc. as general-purpose I / Fs used in the computer apparatus 3 and the like. The in-vehicle multimedia device 1 may be provided with these I / F connectors instead of the USB connector 26.

  In this embodiment, the power supply circuit 16 of the in-vehicle multimedia device 1 supplies power to the portable player 2 via the portable player dedicated cable 101. Therefore, for example, even when the secondary battery 61 of the portable player 2 is not charged, the portable player 2 can be connected and used. The portable player 2 can be used as a part of the in-vehicle multimedia device 1.

  In this embodiment, the guide route generation unit 124 of the in-vehicle multimedia device 1 reads a point of the address book data 65 stored in the portable player 2 and generates a guide route using the point. Therefore, the in-vehicle multimedia device 1 can generate a guide route using data other than the navigation data 64. The user does not need to input the name of the point one character at a time in order to select the point in the in-vehicle multimedia device 1.

  In addition to the address book data 65, for example, store data, calendar data, schedule data, message data, task data other than the address book data 65 can be created in the computer device 3 and used in the in-vehicle multimedia device 1. And weather data. Store data can be used as point data, for example. Calendar data, schedule data, message data, and task data are used as data for causing the in-vehicle multimedia device 1 to perform predetermined processing, for example, message pop-up display, playback of specified music, alarm output, etc. can do. By using these functions, tourist information can be provided.

  In this embodiment, the guide route generation unit 124 of the in-vehicle multimedia device 1 stores the address, name, telephone number, etc. of the personal home or store at the selected point in the address book data 65 stored in the portable player 2. Add to Therefore, the portable player 2 can use information contained in the navigation data 64 by itself. In the computer device 3, information included in the navigation data 64 can be used as the address book data 65. The guide route generation unit 124 may add the current location and the like to the address book data 65.

  In this embodiment, the route guidance unit 125 of the in-vehicle multimedia device 1 includes the vehicle current location information acquired from the current location acquisition unit 126 and the time information acquired from the current location acquisition unit 126 at every predetermined time interval and every parking stop. Are stored in the portable player 2 as travel log data 68. Therefore, the user can connect the portable player 2 to the computer apparatus 3 and confirm the route actually traveled by the vehicle at a later date. In particular, the EXIF image data captured during the trip can be mapped on the map displayed on the display 84 using the position information and the time information.

  The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications and changes can be made without departing from the scope of the invention. .

  For example, in the above embodiment, the portable player 2 stores and reproduces music data. In addition to this, for example, the portable player 2 stores and reproduces movies, television programs, and other video data even if it stores and reproduces audio data based on other sounds such as reading. Or a plurality of types of data stored and reproduced. When the reproduction data includes a video other than sound, the in-vehicle multimedia device 1 may display the video on the liquid crystal monitor 13. As a result, information other than voice can be used in the vehicle.

  In the above embodiment, the portable player 2 has the hard disk drive 47 and stores data such as the navigation data 66 in the hard disk drive 47. In addition to this, for example, the portable player 2 may include a semiconductor memory and store data such as the navigation data 66 in the semiconductor memory.

  In the above embodiment, the portable player 2 stores all the navigation data 66 used in the vehicle. In addition, for example, when the in-vehicle multimedia device 1 does not perform the guide route generation process, only the node data 71, the link data 72, and the display map data 73 are stored in the portable player 2 as the navigation data 66. You may do it. The node data 71, the link data 72, and the display map data 73 are data in a range necessary for guidance of the guidance route data 67 stored in the hard disk drive 47, that is, data in a predetermined range including the guidance route. Only the portable player 2 may be stored. When the configuration of the navigation data 66 stored in the portable player 2 is changed along with the guide route data 67 as described above, the navigation data management unit 114 of the computer device 3 generates the drive plan after the guide route data 67 is generated. Based on an instruction from the unit 115, data to be stored may be selected and the selected data stored in the portable player 2.

  In addition, for example, a part of all navigation data 66 used in the vehicle may be stored in the in-vehicle multimedia device 1, and the remaining data may be stored in the portable player 2. Specifically, for example, the in-vehicle multimedia device 1 stores wide-area display map data and node data and link data in the map data, and the portable player 2 stores detailed display map data and node data in the map data. In addition, link data may be stored.

  In the above embodiment, the portable player 2 has a function of playing the music data 64. In addition to this, for example, a GPS radio wave receiver as player current location acquisition means may be connected to the portable player 2 and a simple navigation program may be stored in the nonvolatile memory 42 or the hard disk drive 47.

  Then, the central processing unit 41 executes this simple navigation program, whereby the portable player 2 realizes a simple navigation unit as a current location guide map generating means. This simple navigation unit uses, for example, display map data for vehicle navigation stored in the hard disk drive 47, and displays a map of the current location of the portable player 2 and its surroundings specified based on the received radio wave of the GPS radio wave receiver. Generate display screen data to be displayed. The liquid crystal device 43 of the portable player 2 as the player display means displays this display screen. Thereby, even if the user leaves the vehicle, the user can move to the desired destination or the like without hesitation by following the map displayed on the liquid crystal device 43.

  The simple navigation unit may cause the liquid crystal device 43 to display a mark indicating the position of the vehicle at a position associated with the latest time in the travel log data 68, for example. The latest time in the travel log data 68 is a position where the possibility that the vehicle is parked or stopped is high. Thereby, the user can return to the vehicle without hesitation by moving the current location so as to approach the mark indicating the position of the vehicle in the liquid crystal device 43.

  The present invention can be used for an AV system used in a vehicle.

FIG. 1 is a block diagram showing a hardware configuration of an in-vehicle multimedia device according to an embodiment of the present invention. FIG. 2 is a block diagram showing a hardware configuration of a portable player connected to the in-vehicle multimedia device of FIG. FIG. 3 is a block diagram showing a hardware configuration of a computer device connected to the portable player of FIG. FIG. 4 is realized when the dedicated connector of the portable player and the USB connector of the computer apparatus are connected by a portable player dedicated cable that can be connected to the USB connector, and the central processing unit of the computer apparatus executes the player management program. It is a functional block diagram which shows a function. FIG. 5 is a functional block diagram showing functions realized when the portable player is activated alone. FIG. 6 is realized when the dedicated connector of the portable player and the USB connector of the computer apparatus are connected by a portable player dedicated cable connectable to the USB connector, and the central processing unit of the computer apparatus executes the navigation management program. It is a functional block diagram which shows a function. FIG. 7 shows that the dedicated connector of the portable player and the USB connector and audio input terminal of the in-vehicle multimedia device are connected by a cable dedicated to the portable player that can be connected to the USB connector, and the central processing unit of the in-vehicle multimedia device is activated. It is a functional block diagram which shows the function implement | achieved when an execution program is executed. FIG. 8 is a functional block diagram showing functions realized when the central processing unit of the in-vehicle multimedia device executes the navigation system program based on an instruction from the function selection unit. FIG. 9 is a functional block diagram showing functions realized when the central processing unit of the in-vehicle multimedia device executes the AV system program based on an instruction from the function selection unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car-mounted multimedia apparatus 2 Portable player 3 Computer apparatus 13 Liquid crystal monitor (display means for navigation)
16 Power supply unit (power supply means)
26 USB connector (connector for navigation)
32 DAC (part of in-vehicle playback means, conversion means)
33 Source selector 34 Speaker (audio output means)
43 Liquid crystal device (player display means)
45 DAC (part of player playback means)
47 Hard disk drive (storage means)
59 USB connector (portable player connector)
64 Music data (voice data)
65 Address book data (data other than navigation data)
66 Navigation data 67 Guide route data 68 Travel log data (data other than navigation data)
90 USB connector (connector of computer device)
101 Portable player dedicated cable (cable)
108 USB mass storage class (data output means)
109 Decoder (part of player playback means)
114 Navigation Data Management Unit (Navigation Data Writing Means)
121 USB mass storage class (part of data acquisition means)
122 Function selection unit (portable player management means)
123 Data input / output control unit (part of data acquisition means)
124 Guide route generation unit (guide route generation means)
125 Route guidance unit (navigation means, current location guidance means, route guidance means, current location storage means)
126 Current location acquisition unit (current location acquisition means)
128 decoder (part of on-vehicle playback means)
129 Equalizer (part of on-vehicle playback means, gain adjustment means)

Claims (13)

A portable player having storage means in which audio data and navigation data are written by a computer device, and player reproducing means for reproducing the audio data stored in the storage means;
Data acquisition means for acquiring data stored in the storage means from the portable player, causing the data acquisition means to acquire the navigation data, and using the acquired data for route guidance or current location guidance An in-vehicle multimedia device having an in-vehicle reproduction means for causing the navigation means and the data acquisition means to acquire the audio data and reproducing the acquired data;
An in-vehicle multimedia system comprising: A navigation connector to which a portable player having storage means for storing voice data and navigation data and player playback means for playing back the voice data stored in the storage means is connected;
Data acquisition means for acquiring data stored in the storage means of the portable player via the navigation connector;
Current location acquisition means for acquiring location information of the current location of the vehicle;
Based on the position information of the current location of the vehicle, display for displaying navigation data around the current location in the data acquisition means, and displaying the current location of the vehicle and a map around the vehicle using the acquired data A current location guide for generating a screen;
Navigation display means for displaying the generated display screen;
In-vehicle reproduction means for causing the data acquisition means to acquire the audio data and reproducing the acquired data;
An in-vehicle multimedia device comprising: A navigation connector to which a portable player having storage means for storing voice data, navigation data, and guide route data, and player playback means for playing back voice data stored in the storage means is connected;
Data acquisition means for acquiring data stored in the storage means of the portable player via the navigation connector;
Current location acquisition means for acquiring location information of the current location of the vehicle;
Based on the position information of the current location of the vehicle, the data acquisition means acquires navigation data and guidance route data around the current location, and based on the acquired navigation data, the current location of the vehicle and its surroundings Navigation means for generating a display screen for displaying a map and displaying a guide route in the map based on the guide route data;
Navigation display means for displaying the generated display screen;
In-vehicle reproduction means for causing the data acquisition means to acquire the audio data and reproducing the acquired data;
An in-vehicle multimedia device comprising: The on-vehicle reproduction means includes
A decoder for decoding the audio data acquired by the data acquisition means;
Gain adjustment means for performing gain adjustment processing for each frequency band in accordance with the in-vehicle environment for the audio data decoded by the decoder;
Conversion means for generating an analog audio signal from the data whose gain has been adjusted by the gain adjustment means;
The in-vehicle multimedia device according to claim 2 or 3, characterized by comprising:   5. The data acquisition unit preferentially acquires the navigation data when there is a request for acquisition of the navigation data and a request for acquisition of the audio data. 5. The in-vehicle multimedia system according to any one of the above.   6. The portable player management means for sending a command for prohibiting the reproduction processing by the player reproduction means based on operation of an operation key in the portable player to the portable player. The vehicle-mounted multimedia apparatus of any one of Claims.   7. The vehicle-mounted device according to claim 2, wherein the navigation connector is connected to a connector of the portable player connected to a computer device for writing audio data by a cable. Multimedia device.   8. The in-vehicle multimedia device according to claim 2, wherein power supply means for supplying power to the portable player is connected to the navigation connector via the cable.   The data acquisition unit acquires navigation data, uses the acquired data to generate guide route data to a predetermined point, and stores the generated guide route data in the storage unit of the portable player 4. The in-vehicle multimedia device according to claim 3, further comprising guide route generation means.   The guide route generation unit causes the data acquisition unit to acquire data related to a point stored as data other than the navigation data in the storage unit of the portable player, and uses the acquired data to determine the predetermined route. The in-vehicle multimedia device according to claim 9, wherein guide route data to the destination is generated.   The guide route generation means stores data relating to points included in the navigation data acquired by the data acquisition means in the storage means of the portable player as data other than the navigation data. The in-vehicle multimedia device according to claim 9.   The vehicle-mounted vehicle according to any one of claims 3 to 11, further comprising current location storage means for storing the current location information of the vehicle acquired by the current location acquisition means in the storage means of the portable player. Multimedia device. A connector to which the computer device and the in-vehicle multimedia device are connected;
Storage means in which audio data and navigation data are written by the computer device via the connector;
Player reproducing means for reproducing audio data stored in the storage means;
Data output means for outputting data stored in the storage means via the connector when the in-vehicle multimedia device is connected to the connector;
A portable player characterized by comprising:

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