JP4295718B2 - In-vehicle multimedia system, computer device, in-vehicle multimedia device and portable player - Google Patents

Description

  The present invention relates to an in-vehicle multimedia system, a computer apparatus, an in-vehicle multimedia apparatus, 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 a computer device, an in-vehicle multimedia device and a portable player that can be used therefor.

  The in-vehicle multimedia system according to the present invention is a portable player having storage means for writing audio data and navigation data by a computer device, and reproducing means for reproducing the audio data stored in the storage means and outputting an audio signal. And a data reading means for reading navigation data from the portable player, and an in-vehicle multimedia device having navigation means for guiding the route of the vehicle or guiding the current location using the data read by the data reading means.

  Another in-vehicle multimedia system according to the present invention is a portable player having a storage means in which audio data and navigation data are written by a computer device, and a playback means for reproducing an audio signal from the audio data stored in the storage means. And data reading means for reading navigation data from the portable player, navigation means for guiding the vehicle route or presenting the location using the data read by the data reading means, and audio signals reproduced by the reproducing means of the portable player And an in-vehicle multimedia device having an audio output means for outputting audio.

  A computer apparatus according to the present invention includes a connector to which a portable player having storage means capable of storing audio data and a reproduction means for reproducing audio data stored in the storage means is connected, and a portable player via the connector. The on-vehicle multimedia device to be connected has navigation data writing means for writing the navigation data used for route guidance or current location guidance of the vehicle to the storage means of the portable player.

  An 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 a playback means for reproducing the voice data stored in the storage means, Data reading means for reading data stored in the storage means of the portable player via the connector, current position acquisition means for acquiring position information of the current position of the vehicle, and current position based on the position information of the current position of the vehicle The navigation data around the vehicle is read by the data reading means, and using the read data, the current location guidance means for generating the display screen for displaying the current location of the vehicle and the surrounding map, and the generated display screen are displayed. Display means for navigation.

  Another in-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 playback means for playing back the voice data stored in the storage means. A navigation connector; data reading means for reading data stored in the storage means of the portable player via the navigation connector; current position acquisition means for acquiring position information of the current position of the vehicle; and position information of the current position of the vehicle Based on the data, the data reading means reads the navigation data and guidance route data around the current location, and based on the read navigation data, the current location of the vehicle, the surrounding map, and the map based on the guidance route data. Navigation to generate a display screen that displays the guide route of Those having means, a navigation display means for displaying the generated display screen, a.

  The in-vehicle multimedia apparatus according to the present invention includes an audio input terminal to which an analog audio signal reproduced by the reproduction means of the portable player is input and a plurality of sound sources including the audio input terminal in addition to the above-described configurations of the invention. A source selector for selecting one of the sound sources, and a speaker driven by an audio signal from the sound source selected by the source selector.

  The in-vehicle multimedia device according to the present invention is configured so that, in addition to the above-described configurations of the invention, the data reading process by the data reading unit and the reproduction process by the reproducing unit are exclusively or prioritized. Portable player management means for managing the above.

  In the in-vehicle multimedia device according to the present invention, in addition to the configuration of each of the above-described inventions, the portable player management unit prohibits the portable player from performing the reproduction process by the reproduction unit based on the operation of the operation key in the portable player. Is to send.

  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, in addition to the configuration of each of the above-described inventions, causes the data reading means to read the navigation data and uses the read data to guide to a predetermined point such as a destination. It has a guide route generating means for generating data and 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 reads data related to a point stored as data other than navigation data in the storage unit of the portable player. The data is read by the means, and the route data to the predetermined destination is generated using the read data.

  The in-vehicle multimedia device according to the present invention includes, in addition to the configuration of each of the above-described inventions, data related to the points included in the navigation data read by the data reading means by the guide route generation means in the storage means 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. And a data output means for outputting navigation data to the in-vehicle multimedia device when the in-vehicle multimedia device is connected to the connector.

  The portable player according to the present invention includes, in addition to the configurations of the above-described inventions, player current position acquisition means for acquiring position information of the current position of the portable player, and the vicinity of the current position based on the position information of the current position of the portable player. Current location map generating means for reading the navigation data and generating a display screen for displaying the current location of the portable player and its surrounding map using the read data, and the player display for displaying the generated display screen Means.

  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, a computer apparatus, an in-vehicle multimedia apparatus, 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.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a hardware configuration of an in-vehicle multimedia device 1 according to Embodiment 1 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 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, an audio input terminal 32, It has 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.

  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 audio input terminal 32 is an analog audio signal input terminal called a so-called mini jack. The multi-drive 17, the tuner 31, and the audio input terminal 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, and a DAC (Digital to Analog Converter) as a part of the playback means. 45, 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.

  The DAC 45 generates an analog audio signal based on a digital audio signal obtained by sampling the analog audio signal. 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, for example, about 5 GB 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 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.

  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.

  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, the map can be displayed with high resolution by using the display map data 73 used in vehicle navigation described later. It is easy to create a home drive plan 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 first 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 apparatus 3 writes data to the hard disk drive 47 of the portable player 2 in units of files or reads data of the hard disk drive 47 of the portable player 2 in units of files.

  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 hard disk drive 47 of the portable player 2 stores the music data 64 selected by the ripping unit 112.

  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 hard disk drive 47 of the portable player 2 stores the address book data 65 created or updated by the address book management unit 113.

  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 reproducing 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 57 to output the navigation data 66. The multi drive 57 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.

  FIG. 7 shows that the dedicated connector 57 of the portable player 2 is connected to the USB connector 26 and the audio input terminal 32 of the in-vehicle multimedia device 1 with the portable player dedicated cable 101 that can be connected to the USB connector. It is a functional block diagram which shows the function implement | achieved when the central processing unit 11 of this executes the execution program 22 at the time of starting.

  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 data reading means. 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.

  Further, the central processing unit 11 of the in-vehicle multimedia device 1 executes the startup execution program 22, thereby realizing a function selection unit 122 as portable player management means in the in-vehicle multimedia device 1.

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

  The function selection unit 122 reads a list of file names stored in the hard disk drive 47 of the portable player 2 from the USB mass storage class 121. Based on this read request, the USB mass storage class 121 sends a file name list acquisition request to the USB of the portable player 2 via the USB connector 26, the portable player dedicated cable 101, and the USB connector 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 USB mass storage class 121 supplies the received list of file names to the function selection unit 122 as a list corresponding to the read request.

  When the function selection unit 122 confirms that predetermined navigation data 66 is stored in the hard disk drive 47 of the portable player 2 based on the read list, the function selection unit 122, a navigation function selection button, an AV function selection button, etc. Display data of the start-up screen for displaying is generated and output to the liquid crystal monitor 13. The liquid crystal monitor 13 displays this startup screen.

  The function selection unit 122 may determine whether or not all of the predetermined navigation data 66 is stored in the hard disk drive 47 of the portable player 2, but the specific selection data included in the predetermined navigation data 66 may be determined. It may be determined whether the file name 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 control flag 123 and 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 stores the generated control flag 123 in the memory 12 of the in-vehicle multimedia device 1. The control flag 123 is a flag generated when navigation using the navigation data 66 stored in the portable player 2 is executed in the in-vehicle multimedia device 1, and indicates the use state of the navigation function. It is a flag to show.

  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 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 control flag 123 and 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. 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. Note that the functional blocks described in the portable player 2 in FIG. 8 are the same as the functional blocks 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.

  The guide route generation unit 124 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 acquired point data 70. The guide route generation unit 124 selects a predetermined point as, for example, a destination based on input data from the touch panel 14.

  Further, the guide route generation unit 124 uses the USB mass storage class 121 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 acquired address book data 65 and the home list 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 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 classes 121 and 108, and uses these data to determine the current location. Search for a route from to the destination. 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 supplies the selected guide route data 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 storing 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. A record including the order is generated and written to the portable player 2 using the USB mass storage classes 121 and 108. The USB mass storage class 108 of the portable player 2 adds this record to the address book data 65.

  The route guiding unit 125 uses the guide route data 67 stored in the hard disk drive 47 of the portable player 2 to guide the route. The guide route data 67 is generated by the guide route generation unit 124 or generated by the drive plan generation unit 115 of the computer device 3.

  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 uses the USB mass storage classes 121 and 108 to display the display map data 73, the link data 72, the node data 71, and the region of the area within the predetermined range from the current location acquired from the hard disk drive 47 of the portable player 2. The guide route data 67 is read.

  When these data are read, the route guidance unit 125 generates display data for the guidance screen and outputs it 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 executes the above-described display screen generation process, for example, at predetermined time intervals or at predetermined position changes of the current location. When the current location moves, the route guidance unit 125 uses the USB mass storage classes 121 and 108 to display the display map data 73, the link data 72, the node data 71, and the guide route data 67 of the area within a predetermined range from the new current location. And a map that is within a predetermined display range from the current location is displayed on the liquid crystal monitor 13. 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 guiding unit 125 writes the record to the hard disk drive 47 of the portable player 2 using the USB mass storage class 121. The USB mass storage class 108 of the portable player 2 additionally writes the record in the travel log data 68. Thereby, the travel log data 68 in which the position and time at which the vehicle has moved is 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 when 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, a playback setting unit 127 is realized in the in-vehicle multimedia device 1.

  If the function selection unit 122 in FIG. 7 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.

  The reproduction setting unit 127 first determines whether or not an unused 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 also checks whether or not the control flag 123 is stored in the memory 12 of the in-vehicle multimedia device 1. The control flag 123 is deleted by the route guidance unit 125 when the route guidance unit 125 in FIG. 8 ends the route guidance, for example. Also, “unused” means that the portable player 2 is not used for navigation.

  Then, when the portable player 2 is connected to the USB connector 26 and the control flag 123 is not stored in the memory 12, the playback setting unit 127 connects the unused portable player 2 to the in-vehicle multimedia device 1. Judge that In other cases, the playback setting unit 127 determines that the unused portable player 2 is not connected to the in-vehicle multimedia device 1.

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

  If it is determined that the unused 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. In addition, the playback setting unit 127 displays a source selection screen having a music server playback button on the liquid crystal monitor 13 regardless of the previous determination, and when the music server playback button is selected, a warning such as “cannot be used” is displayed. A message 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.

  When the music server playback button is selected based on the input data from the touch panel 14, the playback setting unit 127 instructs the USB mass storage class 121 to obtain a list of the music data 64, and connects the audio input terminal 32 to the source selector 33. Let them choose.

  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.

  The USB mass storage class 108 of the portable player 2 generates a list of file names of the music data 64 stored in the hard disk drive 47 based on the reception of the request from the USB mass storage class 121 of the in-vehicle multimedia device 1. Send.

  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 played back is selected, the playback setting unit 127 specifies the music and generates a playback instruction command. This playback instruction command is transmitted from the USB mass storage class 121 of the in-vehicle multimedia device 1 to the USB mass storage class 108 of the portable player 2.

  When receiving the reproduction instruction command, the execution management unit 106 of the portable player 2 causes the central processing unit 41 to execute the decoder program 53. Thereby, the decoder 109 is realized in the portable player 2. Further, the decoder 109 reads the music data 64 having the file name selected by the playback setting unit 127 from the hard disk drive 47 and outputs the 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.

  The analog audio signal output to the headphone terminal 56 is input to the audio input terminal 32 of the in-vehicle multimedia device 1 via the portable player dedicated cable 101. The source selector 33 selects the audio input terminal 32. Therefore, the audio signal input from the audio input terminal 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 the first 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. Furthermore, the sound of the music data 64 stored in the hard disk drive 47 of the portable player 2 is reproduced in the vehicle via the in-vehicle multimedia device 1.

  Therefore, in the first embodiment, the navigation data 66 used in the vehicle is stored in the portable player 2 that is carried by the user on a daily basis, and the navigation data 66 stored in the portable player 2 is used. 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 the first embodiment, the portable player 2 can be used for its original purpose, and can be used for navigation in the vehicle, thereby reducing the cost of the user and improving the user's convenience. it can.

  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.

  Moreover, in the first embodiment, the audio reproduced by the portable player 2 is input to the in-vehicle multimedia device 1 from the audio input terminal 32, selected by the source selector 33, and output from the speaker 34. 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, it is not necessary for the in-vehicle multimedia device 1 to include a decoder for reproducing the music data 64 stored in the portable player 2 and a ripping unit for ripping the music data 64 in the in-vehicle multimedia device 1 itself. As the central processing unit 11 of the in-vehicle multimedia device 1, it is not necessary to use a high-performance device so that navigation processing and these processing can be executed simultaneously.

  In particular, in the first embodiment, the function selection unit 122 stores the control flag 123 in the memory 12 when the navigation function is selected, and after that, when the control flag 123 is stored, The reproduction setting unit 127 does not cause the decoder 109 of the portable player 2 to reproduce the music data 64. That is, data reading processing such as navigation data by the USB mass storage class 121 accompanying navigation is prioritized over music playback processing by the decoder 109 of the portable player 2. Therefore, even if the portable player 2 cannot perform the music data 64 reproduction process and the USB mass storage class 108 data input / output process at the same time, unintentional operations such as music reproduction interruption and navigation interruption may occur. The music data 64 and the navigation data 66 can be used in the vehicle.

  Note that the music reproduction processing by the decoder 109 of the portable player 2 may be prioritized over the data reading processing such as navigation data by the USB mass storage class 121 accompanying navigation. Further, these two processes may be controlled exclusively so that the process that has occurred first is given priority.

  In the first embodiment, the control flag 123 is stored in the memory 12 to perform priority control between these two processes. In addition to this, for example, priority control or exclusive control between two processes may be performed using a semaphore or other exclusive control function.

  In the first embodiment, the function selection unit 122 transmits a key operation prohibition command to the portable player 2, and when the execution management unit 106 of the portable player 2 receives the key operation prohibition command, the function selection unit 122 stops the key operation management unit 107. Let 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 the first 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 the first 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 the first 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. This also makes it possible to provide tourist information.

  In the first embodiment, the guide route generation unit 124 of the in-vehicle multimedia device 1 stores the address, name, phone number, etc. of the personal home or store at the selected point in the address book data stored in the portable player 2. Add to 65. 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 the first embodiment, the route guidance unit 125 of the in-vehicle multimedia device 1 acquires the current vehicle 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.

Embodiment 2. FIG.
The in-vehicle multimedia system according to Embodiment 2 deletes the guide route generation function from the in-vehicle multimedia device 1, and the amount of navigation data stored in the hard disk drive 47 of the portable player 2 is necessary for route guidance. It differs from the in-vehicle multimedia system according to Embodiment 1 in that the data amount is reduced.

  FIG. 10 shows a case where the computer device 3 according to the second embodiment of the present invention and the portable player 2 are connected by the portable player dedicated cable 101 that can be connected to the USB connector, and the navigation management program is executed in the computer device 3. It is a functional block diagram which shows the function implement | achieved by.

  When the central processing unit 81 of the computer apparatus 3 executes the navigation management program, the computer apparatus 3 includes a navigation data management unit 131 as a navigation data writing unit, a drive plan generation unit 132, and a travel reproduction unit. 116 is realized.

  The hard disk drive 47 of the portable player 2 stores navigation data 141 including node data 142, link data 143, and display map data 144.

  FIG. 11 shows that the in-vehicle multimedia device 1 and the portable player 2 according to Embodiment 2 of the present invention are connected by a portable player dedicated cable 101 that can be connected to a USB connector. It is a functional block diagram which shows the function implement | achieved when is executed. In the in-vehicle multimedia device 1, a route guidance unit 151 and a current location acquisition unit 126 are realized.

  In the second embodiment, the components other than the above-described components of the in-vehicle multimedia device 1, the portable player 2, and the computer device 3 have the same functions as the components of the same names in the first embodiment. The same names and symbols as those in the first embodiment are used, and illustration and description are omitted.

  Next, operations of the in-vehicle multimedia device 1, the portable player 2, and the computer device 3 according to the second embodiment having the above configuration will be described.

  First, the operation when the portable player 2 is connected to the computer apparatus 3 will be described with reference to FIG. In the following description, it is assumed that a recording medium in which navigation data for the entire predetermined region is recorded is inserted into the multi-drive 87 in FIG.

  The navigation data management unit 131 implemented in the computer device 3 outputs display data of the startup screen to the display 84. The display 84 displays a startup screen by the navigation data management unit 131. On the startup screen by the navigation data management unit 131, for example, a selection button for creating a drive plan, a selection button for reproducing a trip, and the like are displayed.

  When the drive plan creation selection button is selected based on the input data from the keyboard 85, the navigation data management unit 131 instructs the drive plan generation unit 132 to create a drive plan.

  The drive plan generation unit 132 instructs the multi-drive 87 to output the point data of the navigation data from the disc inserted therein. The multi drive 87 reads data from the inserted disc and outputs point data.

  The drive plan generation unit 132 causes the display 84 to display the acquired point data. The drive plan generation unit 132 selects a predetermined point as a destination based on the input data from the keyboard 85, for example.

  When a departure place or the like is selected, the drive plan generation unit 132 reads the node data 142 and the link data 143 from the multi-drive 87 and searches for a route from the departure place to the destination using these data. Then, the drive plan generation unit 132 selects, as a guide route, a route having the lowest cost from the departure point to the destination from the searched plurality of routes. The drive plan generation unit 132 assigns 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 132 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 132 is stored in the hard disk drive 47 of the portable player 2.

  After storing the generated guidance route data in the portable player 2, the portable player 2 designates a predetermined area including the guidance route, and instructs the navigation data management unit 131 to save the navigation data in the area.

  The navigation data management unit 131 reads navigation data from the multi-drive 87 and supplies the data to the USB mass storage class 111 as write data for each file. The USB mass storage class 111 of the computer device 3 transmits this write data to the USB mass storage class 108 of the portable player 2. The USB mass storage class 108 writes this write data into the hard disk drive 47.

  Through the above processing, the guide route data 67 generated by the drive plan generating unit 132 and the navigation data 141 for a predetermined area including the guide route are stored in the hard disk drive 47 of the portable player 2. The navigation data 141 for a predetermined area is composed of node data 142 within the area, link data 143 within the area, and display map data 144 within the area.

  Next, the operation when the portable player 2 is connected to the in-vehicle multimedia device 1 will be described with reference to FIG. The route guidance unit 151 realized in the in-vehicle multimedia device 1 uses the guide route data 67 stored in the hard disk drive 47 of the portable player 2 to guide the route. The hard disk drive 47 of the portable player 2 stores guide route data 67 generated by the drive plan generation unit 132 of the computer device 3.

  The route guidance unit 151 first acquires the current location of the vehicle from the current location acquisition unit 126. The route guiding unit 151 uses the USB mass storage classes 121 and 108 to display the display map data 144, the link data 143, the node data 142, and the area data within a predetermined range from the current location acquired from the hard disk drive 47 of the portable player 2. The guide route data 67 is read.

  When these data are read, the route guidance unit 151 displays a guidance screen on the liquid crystal monitor 13. On this guidance screen, a map that is within a predetermined display range from the current location, a current location mark, and a guide route line are displayed.

  The route guiding unit 151 executes the above-described display screen generation process, for example, at predetermined time intervals or at predetermined position changes of the current location. When the current location moves, the route guiding unit 151 reads the display map data 144, the link data 143, the node data 142, and the guide route data 67 of the area within a predetermined range from the new current location from the hard disk drive 47 of the portable player 2. Then, a map that falls within a predetermined display range from the new current location is displayed on the liquid crystal monitor 13. 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 guidance route by moving the vehicle so that the current location mark moves on the guidance route line, and can move from the current location to a desired destination.

  The route guidance unit 151 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. The route guidance unit 151 generates a record including information on the current location of the vehicle and time information when the vehicle is acquired, and adds this record to the travel log data 68 stored in the hard disk drive 47 of the portable player 2.

  In addition, the route guidance unit 151 ends the route guidance and erases the control flag 123 stored in the memory 12 when the current position is within a predetermined distance from the destination.

  As described above, in the second embodiment, the portable player 2 having the hard disk drive 47 is connected to the computer apparatus 3, and the music data 64 and predetermined information necessary for route guidance are transferred from the computer apparatus 3 to the hard disk drive 47. Write navigation data 141 within the range. Further, by connecting the portable player 2 in which the navigation data 141 is written in the hard disk drive 47 to the in-vehicle multimedia device 1, the navigation data 141 is used to guide the vehicle by the guide route. Furthermore, the sound of the music data 64 stored in the hard disk drive 47 of the portable player 2 is reproduced in the vehicle via the in-vehicle multimedia device 1. Therefore, the second embodiment has the same effect as the first embodiment. That is, data used in the vehicle can be easily maintained without making the user feel bothered about carrying something other than the portable player 2.

  Moreover, in the second embodiment, the navigation data 141 stored in the hard disk drive 47 of the portable player 2 is limited to data within a predetermined range necessary for route guidance. The amount of data is smaller than the navigation data 66 stored in the hard disk drive 47 of the portable player 2 in the first embodiment. Therefore, the portable player 2 according to the second embodiment can use a hard disk drive 47 having a smaller capacity than that according to the first embodiment.

  In the second embodiment, only the route guiding unit 151 is realized in the in-vehicle multimedia device 1. In addition, for example, the in-vehicle multimedia device 1 implements the guide route generation unit 124 of the first embodiment, and searches for the guide route using the navigation data 141 stored in the hard disk drive 47 of the portable player 2. You may make it make it. The hard disk drive 47 of the portable player 2 includes node data 142 in a predetermined region, link data 143 in a predetermined region, display map data 144 in a predetermined region, and points in the predetermined region. Data may be stored. Thereby, the route search based on the point data can be performed using the in-vehicle multimedia device 1.

Embodiment 3 FIG.
The in-vehicle multimedia system according to Embodiment 3 adds a function for performing navigation by itself using the navigation data 66 stored in the hard disk drive 47 for navigation of the vehicle in the portable player 2. This is different from the in-vehicle multimedia system according to the first embodiment.

  FIG. 12 is a block diagram showing a hardware configuration of portable player 2 according to Embodiment 3 of the present invention. As in the first and second embodiments, the portable player 2 is connected to the computer device 3 so that the music data 64 and the navigation data 65 are written by the computer device 3. Further, the portable player 2 can be connected to the in-vehicle multimedia device 1 to enable navigation of the vehicle.

  A simple navigation program 161 is stored in the nonvolatile memory 42 of the portable player 2. The simple navigation program 161 may be stored in the hard disk drive 47 by the computer device 3 or the in-vehicle multimedia device 1.

  A GPS radio wave receiver 162 as player current location acquisition means is connected to the system bus 48 of the portable player 2. The GPS radio wave receiver 162 may be an external GPS radio wave receiver 162 connected to the USB connector portion of the portable player 2. Further, instead of the GPS radio wave receiver 162, a mobile phone terminal that can provide position information may be used. In addition to the position information based on the GPS radio wave, the position information provided by the mobile phone terminal, for example, is specified based on the position information specified based on the position of the base station of the mobile communication network, the FM broadcast wave, etc. There is location information etc.

  In the third embodiment, the components other than the above-described components of the in-vehicle multimedia device 1, the portable player 2, and the computer device 3 have the same functions as the components of the same names in the first embodiment. The same names and symbols as those in the first embodiment are used, and illustration and description are omitted.

  Next, operations of the in-vehicle multimedia device 1, the portable player 2, and the computer device 3 according to the third embodiment having the above configuration will be described. Note that the operation when the portable player 2 is connected to the in-vehicle multimedia device 1 and the operation when the portable player 2 is connected to the computer device 3 are the same as those in the first embodiment. Omitted.

  FIG. 13 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 and the in-vehicle multimedia device 1, 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 instructs the execution management unit 106 to start navigation based on a predetermined operation on the key device 44. The execution management unit 106 causes the central processing unit 41 to execute the simple navigation program 161. Thereby, the portable player 2 implements a simple navigation unit 163 as a current location guide map generating unit.

  The simple navigation unit 163 first identifies the current position of the portable player 2 based on the radio wave received by the GPS radio wave receiver 162.

  The simple navigation unit 163 reads display map data 73 of an area that is a predetermined display range from the identified current location. When the display map data 73 is read, the simple navigation unit 163 generates guidance screen display data and outputs it to the liquid crystal device 43. The liquid crystal device 43 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, a current location mark is displayed at a display position corresponding to the current location of the portable player 2 on the map of the guidance screen.

  The simple navigation unit 163 executes the above-described display screen generation process, for example, at every predetermined time interval or every predetermined position change of the current location. When the current location moves, the simple navigation unit 163 reads the display map data 73 of a region that is within a predetermined range from the new current location, and causes the liquid crystal device 43 to display a map that is within the predetermined display range from the new current location. As a result, a map of the current location of the portable player 2 and its surroundings is continuously displayed on the liquid crystal device 43.

  Therefore, the user of the portable player 2 can move from the current location to a desired point based on the map displayed on the liquid crystal device 43 of the portable player 2.

  As described above, in the third embodiment, the portable player 2 includes the GPS radio wave receiver 162 and the simple navigation unit 163. The simple navigation unit 163 displays guidance on the current location of the portable player 2 on the liquid crystal device 43 using the navigation data 66 stored in the hard disk drive 47 for vehicle navigation. Therefore, the user of the portable player 2 can know the current location at that time even when the user is away from the vehicle.

  In the third embodiment, the portable player 2 has a GPS radio wave receiver 162. The in-vehicle multimedia device 1 may specify the current location of the vehicle based on the reception information of the GPS radio wave receiver 162 of the portable player 2 instead of the GPS radio wave receiver 28.

  The simple navigation unit 163 may display the position on the map using the position information of the last time of the travel log data 68 stored in the hard disk drive 47. Location information and time information are added to the travel log data 68 at predetermined time intervals and every time the vehicle is parked or stopped. Therefore, the last time of the travel log data 68 is a position where the vehicle is parked or stopped. As a result, the user can move to the parked vehicle by moving the current location displayed on the display screen of the liquid crystal device 43 toward the position.

  Each of the above embodiments 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. is there.

  For example, in each of the above embodiments, the portable player 2 stores and reproduces the music data 64. 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 data to be played back by the portable player 2 includes a video other than sound as described above, 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 each of the above embodiments, the portable player 2 has the hard disk drive 47 and stores data such as navigation data in the hard disk drive 47. In addition, for example, the portable player 2 may have a nonvolatile semiconductor memory and store data such as navigation data in the semiconductor memory.

  In the first and third embodiments, the portable player 2 stores all the navigation data 66 used in the vehicle. In the second embodiment, the portable player 2 stores the navigation data 66 around the guide route. 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.

  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 the in-vehicle multimedia device according to Embodiment 1 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. FIG. 9 is a functional block diagram showing functions realized when the central processing unit of the in-vehicle multimedia apparatus executes the AV system program. FIG. 10 is realized when the computer apparatus according to Embodiment 2 of the present invention and a portable player are connected by a portable player dedicated cable connectable to a USB connector, and the navigation management program is executed in the computer apparatus. It is a functional block diagram which shows a function. FIG. 11 shows a case where the in-vehicle multimedia device and the portable player according to Embodiment 2 of the present invention are connected by a portable player dedicated cable that can be connected to the USB connector, and the navigation system program is executed in the in-vehicle multimedia device. It is a functional block diagram which shows the function implement | achieved by. FIG. 12 is a block diagram showing a hardware configuration of the portable player according to Embodiment 3 of the present invention. FIG. 13 is a functional block diagram showing functions realized when the portable player is activated alone.

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 Audio input terminal 33 Source selector 34 Speaker (audio output means)
43 Liquid crystal device (player display means)
45 DAC (part of 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, 141 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 playback means)
114, 131 Navigation data management unit (navigation data writing means)
121 USB mass storage class (data reading means)
122 Function selection unit (portable player management 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)
162 GPS radio wave receiver (player current location acquisition means)
163 Simple navigation unit (present location guide map generation means)

Claims (16)

A portable player having a storage means in which audio data and navigation data are written by a computer device, and a reproduction means for reproducing the audio data stored in the storage means and outputting an audio signal;
An in-vehicle multimedia device having data reading means for reading the navigation data from the portable player, and navigation means for performing vehicle route guidance or current location guidance using the data read by the data reading means;
An in-vehicle multimedia system comprising: A portable player having a storage means in which audio data and navigation data are written by a computer device, and a reproduction means for reproducing an audio signal from the audio data stored in the storage means;
Data reading means for reading the navigation data from the portable player, navigation means for guiding the route of the vehicle or presenting the current location using the data read by the data reading means, and sound reproduced by the reproducing means of the portable player An in-vehicle multimedia device having audio output means for outputting audio based on the signal;
An in-vehicle multimedia system comprising: A connector to which a portable player having storage means capable of storing audio data and reproduction means for reproducing the audio data stored in the storage means is connected;
Navigation data writing means for writing navigation data used by the in-vehicle multimedia device connected to the portable player via the connector for route guidance or current location guidance to the storage means of the portable player; ,
A computer apparatus comprising: A navigation connector to which a portable player having storage means for storing voice data and navigation data and a playback means for playing back voice data stored in the storage means is connected;
Data reading means for reading 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;
Display screen for causing the data reading means to read the navigation data around the current location based on the position information of the current location of the vehicle, and displaying the map of the current location of the vehicle and the surroundings using the read data Current location guide means for generating
Navigation display means for displaying the generated display screen;
An in-vehicle multimedia device comprising: A navigation connector to which a portable player having storage means for storing voice data, navigation data and guidance route data, and a playback means for reproducing the voice data stored in the storage means is connected;
Data reading means for reading 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, navigation data and guidance route data around the current location are read by the data reading means, and the current location of the vehicle and a map around it are read based on the read navigation data. And a navigation means for generating a display screen for displaying the guide route in the map based on the guide route data,
Navigation display means for displaying the generated display screen;
An in-vehicle multimedia device comprising: An audio input terminal to which an analog audio signal reproduced by the reproducing means of the portable player is input;
A source selector for selecting one sound source from a plurality of sound sources including the audio input terminal;
A speaker driven by an audio signal from a sound source selected by the source selector;
6. The in-vehicle multimedia device according to claim 4 or 5, characterized by comprising:   7. The portable player managing means for managing the data reading process from the portable player by the data reading means and the reproduction process by the reproducing means exclusively or prioritizing one of the processes. The in-vehicle multimedia device described.   8. The in-vehicle multimedia according to claim 7, wherein the portable player management means transmits a command for prohibiting reproduction processing by the reproduction means based on operation of an operation key in the portable player to the portable player. apparatus.   9. The vehicle-mounted device according to claim 4, 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.   10. The in-vehicle multimedia device according to claim 4, wherein power supply means for supplying power to the portable player is connected to the navigation connector via the cable.   The data reading means is made to read navigation data, and the read data is used to generate guide route data up to a predetermined point such as a destination, and the generated guide route data is stored in the storage means of the portable player. 6. The in-vehicle multimedia device according to claim 5, further comprising guide route generation means for storing the information in the vehicle.   The guide route generation unit causes the data reading unit to read data relating to a point stored as data other than the navigation data in the storage unit of the portable player, and uses the read data to perform a predetermined process. 12. The in-vehicle multimedia device according to claim 11, wherein guide route data to a destination is generated.   The guide route generating means stores data relating to a point included in the navigation data read by the data reading means in the storage means of the portable player as data other than the navigation data. The in-vehicle multimedia device according to claim 11.   The vehicle-mounted vehicle according to any one of claims 4 to 13, 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;
Reproduction means for reproducing the audio data stored in the storage means;
Data output means for outputting navigation data to the in-vehicle multimedia device when the in-vehicle multimedia device is connected to the connector;
A portable player characterized by comprising: Player current location acquisition means for acquiring location information of the current location of the portable player;
Based on the position information of the current location of the portable player, the navigation data around the current location is read, and the read data is used to generate a display screen that displays the current location of the portable player and the surrounding map. Current location map generating means;
Player display means for displaying the generated display screen;
16. The portable player according to claim 15, further comprising:

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