JP2006146993A - Information reproducing device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information reproducing device capable of displaying a caution message in a language which users in a plurality of places of destination can understand by one software. <P>SOLUTION: This information reproducing device is provided with a places of destination information discriminating part 41 for discriminating a places of destination code representing the place of destination of a vehicle from vehicle information received from the vehicle, a reproducing part 20 for reproducing information recorded in a recording medium, a character data reading part 30 for reading character data included in the reproduced information, a character code discriminating part 43 for discriminating a character code used in the read character data on the basis of the character data, a display propriety part 44 for determining propriety to display the read character data on the basis of the place of destination code and the character code, outputting the character data when this determination result indicates display propriety and outputting a caution message constituted of a character code for the place of destination when the result indicates display impropriety, and a display part 22 for displaying the character data or caution message outputted from the display propriety determining part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information reproducing apparatus for a vehicle that reproduces information recorded on a recording medium, and more particularly to a technique for displaying character data recorded on a recording medium.

  2. Description of the Related Art Conventionally, information reproducing apparatuses that reproduce audio and video based on data recorded on a recording medium are known. As a recording medium used in such an information reproducing apparatus, for example, if CD-TEXT, which is a CD format in which character data is recorded on a music CD (Compact Disc), is used, one music CD has 6000 bytes (one byte). 6000 characters, full-width 3000 characters) can be recorded, and information such as titles, artist names, and lyrics can be recorded. CD-TEXT can handle up to 8 languages and can display Japanese (Kana, Kanji). CD-TEXT is defined as an additional specification of the CD-DA (Compact Disc Digital Audio) standard.

  When character data recorded on a CD-TEXT CD is displayed on an information reproducing apparatus, the information reproducing apparatus may not support the character code used for the character data. In this case, the information reproducing apparatus cannot correctly display the character data, and so-called “garbage” occurs. As an information reproducing apparatus that solves such a problem, a text information reproducing apparatus that can determine whether or not text information recorded on a recording medium can be displayed is known (for example, see Patent Document 1). This text information playback device reads the language code prior to reading the text information, and if it is determined that the read language code is a displayable language code, the text information is read and displayed and cannot be displayed. If it is determined that the language code is correct, a message to that effect is displayed.

Japanese Patent Laid-Open No. 11-312384

  Assuming that the conventional technology described above is applied to an information reproducing apparatus for a vehicle having a large number of destinations, if character data such as CD-TEXT cannot be displayed, a warning message to that effect is sent to each destination. In order to display in a language that the user can understand, it is necessary to prepare software in which the language of the caution message is different for each destination. Therefore, it is necessary to develop software for each destination, and there is a problem that it takes a lot of time and money to develop software, and furthermore, software management becomes complicated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an information reproducing apparatus capable of displaying a caution message in a language that can be understood by users at a plurality of destinations with a single software.

  A vehicle information reproducing apparatus according to the present invention reproduces information recorded on a recording medium, and a destination information discriminating unit that discriminates a destination code representing the destination of the vehicle from vehicle information received from the vehicle. Based on the character data, a reproduction unit, a character data reading unit that reads character data included in information reproduced by the reproduction unit, and a character code used in the character data read by the character data reading unit The character data read-out unit determines whether or not the character data read out can be displayed based on the character code discriminating unit, the destination code discriminated by the destination information discriminating unit and the character code discriminated by the character code discriminating unit If it is determined that display is possible, the character data is output. If it is determined that display is impossible, the destination indicated by the destination code is displayed. A display determination unit that outputs a warning message comprising a character code of the use, and a display unit for displaying the character data or attention message is output from the display determination unit.

  According to this invention, based on the destination code determined from the vehicle information received from the vehicle and the character code determined from the character data recorded on the recording medium, it is determined whether the character data can be displayed, If it is determined by the determination that the character can be displayed, the character data is displayed. If it is determined that the character cannot be displayed, a warning message including the character code for the destination indicated by the destination code is displayed. Since it is configured to display, it is not necessary to prepare software for each destination, and a caution message can be displayed in a language that can be understood by the user at each destination using one software.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
1 is a diagram showing a configuration of an information reproducing system to which an information reproducing apparatus according to Embodiment 1 of the present invention is applied. This information reproduction system is roughly composed of a vehicle-side control device 1 and a video / audio output device (hereinafter referred to as “head unit”) 2 corresponding to the information reproduction device of the present invention. The vehicle side control device 1 and the head unit 2 are connected by a communication path 3. The communication path 3 can be configured by a wired or wireless in-vehicle LAN (Local Area Network).

  The vehicle-side control device 1 is a control device mounted on a vehicle (not shown), and performs various controls relating to the vehicle. The vehicle-side control device 1 includes a destination information storage unit 10, a control unit 11, and an interface unit 12. In addition, although the vehicle side control apparatus 1 also contains components other than these, in FIG. 1, only the component directly related to this invention is shown.

  The destination information storage unit 10 is composed of a nonvolatile memory, and stores a destination code representing the destination of the vehicle. The destination code is composed of a code such as “US” in the United States and “JP” in Japan. The destination code is stored in the destination information storage unit 10 at the factory when the vehicle is shipped. The contents of the destination information storage unit 10 are read by the control unit 11.

  The control part 11 is comprised from the microcomputer, for example, and controls the whole vehicle side control apparatus 1. FIG. For example, when the ACC power supply of the vehicle is turned on, the control unit 11 reads the destination code from the destination information storage unit 10 and sends the read destination code to the interface unit 12 as part of the vehicle information. The interface unit 12 controls transmission / reception of vehicle information performed with the head unit 2 via the communication path 3. For example, the vehicle information including the destination code transmitted from the control unit 11 is transmitted to the head unit 2 via the communication path 3.

  The head unit 2 includes a video / audio media playback unit 20, an operation unit 21, a display unit 22, and a control unit 23.

  The video / audio media playback unit 20 corresponds to the playback unit of the present invention, and plays back data recorded on a recording medium such as a DVD or MD in response to a command from the control unit 23. Then, a video signal and an audio signal are generated based on the reproduced data. The video / audio media playback unit 20 includes a character data reading unit 30. The character data reading unit 30 reads character data included in the reproduced data. The character data read by the character data reading unit 30 is sent to the control unit 23.

  The operation unit 21 includes buttons such as “PLAY”, “STOP”, and “fast forward” (all of which are not shown), and is used by the user to operate the head unit 2. The operation unit 21 sends a signal corresponding to the button operation to the control unit 23. The control unit 23 generates a control command for executing a function assigned to the button based on a signal from the operation unit 21. The control command generated by the operation unit 21 is sent to the video / audio media playback unit 20. As a result, the playback or stop of the recording media attached to the video / audio media playback unit 20 is controlled.

  The display unit 22 is composed of a liquid crystal panel, for example. The display unit 22 displays, for example, the play time, the name of the file in which the song is stored, the title of the song, the artist name, and the lyrics according to the character data sent from the control unit 23. In addition, when the recording medium does not include character data, or when the character data cannot be displayed normally due to the difference between the character code used for the character data and the destination code, the destination indicated by the destination code Displays a caution message in the language used in.

  The control unit 23 includes an interface unit 40, a destination information determination unit 41, a storage unit 42, a character code determination unit 43, and a display availability determination unit 44.

  The interface unit 40 controls transmission / reception of vehicle information performed with the vehicle-side control device 1 via the communication path 3. For example, the vehicle information including the destination code transmitted from the interface unit 12 of the vehicle side control device 1 via the communication path 3 is sent to the destination information discriminating unit 41. The destination information discriminating unit 41 discriminates the destination code from the vehicle information sent from the interface unit 40. The destination code determined by the destination information determination unit 41 is sent to the storage unit 42.

  The storage unit 42 is composed of, for example, a RAM (Random Access Memory), and stores the destination code transmitted from the destination information determining unit 41. In addition, the storage unit 42 stores in advance a correspondence table showing the correspondence between destination codes, character codes, and caution messages as shown in FIG. Correspondence table is described with the character code for displaying the language used in the destination indicated by the destination code corresponding to each destination code, and the language used in the destination using this character code. The warning message “Language is different” is stored. Therefore, as many warning messages as the number of languages corresponding to the destination to which the vehicle is shipped are prepared. For example, if the destination of the vehicle is Japan and the United States, a warning message “Language is different” prepared by Japanese and English, which are the official languages of those countries, is prepared.

  In the example shown in FIG. 2, ASCII and Unicode are associated with the destination code “US”, and “Different Language” is associated with the attention message. Further, JIS is associated with the destination code “JP”, and “Language is different” is associated with the attention message. The contents of the storage unit 42 are read out by the display availability determination unit 44.

The character code discriminating unit 43 analyzes the character data received from the character data reading unit 30 of the video / audio media reproducing unit 20, and the character code used for the character data is any of ASCII, Unicode, JIS, etc. Is determined. Information representing the character code determined by the character code determination unit 43 is sent to the display availability determination unit 44 together with the character data received from the character data reading unit 30. For example, when using in English-speaking countries,
ASCII: 20-7E
JOLIET: 0020-007F, FF00-FF5F
If all data is 20 to 7E, it is recognized as ASCII. If all data is odd number 00 and even number is 20 to 7F, all data odd number is FF and even number is 00 to 5F, JOLIET It shall be recognized and alphanumeric characters shall be displayed. At this time, when data other than the above is received, it is recognized as a character code of “not supported”.

  The display availability determination unit 44 refers to the correspondence table stored in the storage unit 42 based on the destination code read from the storage unit 42 and the information indicating the character code received from the character code determination unit 43, The destination code read from the storage unit 42 is checked against information representing the character code received from the character code determination unit 43 to determine whether the character data received from the character code determination unit 43 can be displayed. When it is determined that it can be displayed, the character data is sent to the display unit 22, and when it is determined that it cannot be displayed, a caution message stored in the correspondence table is sent to the display unit 22.

  Next, the operation of the information reproducing apparatus according to Embodiment 1 of the present invention configured as described above will be described with reference to the flowchart shown in FIG.

  First, a destination code is acquired from the vehicle (step ST10). That is, the vehicle-side control device 1 transmits vehicle information including the destination code to the head unit 2 when the ACC power supply of the vehicle is turned on. Specifically, the control unit 23 reads the destination code from the destination information storage unit 10, and uses the read destination code as part of the vehicle information to the head unit 2 via the interface unit 12 and the communication path 3. send. The interface unit 40 of the head unit 2 sends the vehicle information sent from the communication path 3 to the destination information determining unit 41. The destination information discriminating unit 41 discriminates the destination code from the vehicle information sent from the interface unit 40 and sends the discriminated destination code to the storage unit 42 for storage. Note that the destination code may be stored in advance in the factory according to the shipping destination.

  Next, it is checked whether or not there is a reproduction instruction (step ST11). That is, it is checked whether a recording medium is inserted into the video / audio media playback unit 20 or whether a recording medium inserted into the video / audio media playback unit 20 is selected by operating a button of the operation unit 21. It is done. If it is determined that there is no reproduction instruction, the process waits for the reproduction instruction while repeatedly executing step ST11 and enters a standby state.

  If it is determined that there is a reproduction instruction in the standby state by repeatedly executing step ST11, the head unit 2 enters the media reproduction mode. In this media playback mode, first, it is checked whether or not a file to be played has character data such as a song title (for example, CD-TEXT, ID3 tag (tag), etc.) (step ST12). If it is determined that the character data is present, the character data is read from the recording medium (step ST13). That is, the character data reading unit 30 of the video / audio media reproducing unit 20 reads the character data included in the reproduced data and sends it to the character code determining unit 43 of the control unit 23.

  Next, the character code is determined from the character data read in step ST13 (step ST14). That is, the character code determination unit 43 analyzes the character data received from the character data reading unit 30, and determines the character code used for this character data. Then, information indicating the determined character code is sent to the display possibility determination unit 44.

  Next, the destination code and the character code are collated (step ST15). Specifically, the display availability determination unit 44 stores the destination code stored in the storage unit 42 and the information representing the character code received from the character code determination unit 43 in the correspondence table stored in the storage unit 42. Refer to and collate.

  Next, it is checked whether display is possible (step ST16). That is, the display availability determination unit 44 checks whether the character data received from the character code determination unit 43 can be displayed based on the result of the collation performed in step ST15. If it is determined that display is possible, the character data read from the recording medium is displayed (step ST17). That is, the display availability determination unit 44 sends the character data sent from the character data reading unit 30 of the video / audio media playback unit 20 via the character code determination unit 43 to the display unit 22.

  For example, the destination code stored in the storage unit 42 is “US”, and the character code (character code determined by the character code determination unit 43) used in the character data of the file to be reproduced is ASCII. In this case, since the character code corresponding to the destination code US is ASCII in the correspondence table, it is determined that the character data of the file to be reproduced can be displayed, and the character data is displayed on the display unit 22. As a result, character data such as a title, artist name, and lyrics are displayed on the display unit 22.

  On the other hand, if it is determined in step ST16 that display is impossible, a caution message is displayed in a language corresponding to the destination code (step ST18). In other words, the display availability determination unit 44 reads out a caution message corresponding to the destination code of the correspondence table stored in the storage unit 42 and sends it to the display unit 22. Thereby, a caution message is displayed on the display unit 22.

  For example, when the destination code is “US” and the character code of the character data of the file to be reproduced (character code determined by the character code determination unit 43) is JIS, the destination table corresponds to the destination code US in the correspondence table. The character code to be played is not JIS, and JIS includes hiragana / kanji and so on, and it is inappropriate to display in regions other than Japan. Therefore, it is determined that the character data of the file to be reproduced cannot be displayed. Then, a caution message corresponding to the destination code US, that is, a caution message “Different Language” created in a language (for example, English) understandable by the user of the destination is displayed on the display unit 22.

  If it is determined in step ST12 that the file to be reproduced does not have character data, the sequence proceeds to step ST18, and the above-described processing for displaying the caution message is executed.

  As described above, according to the vehicle information reproducing apparatus according to Embodiment 1 of the present invention, the destination code determined from the vehicle information received from the vehicle and the character data recorded on the recording medium are used. Whether or not the character data can be displayed is determined based on the determined character code. If it is determined that the character data can be displayed, the character data is displayed and determined that the character data cannot be displayed. In this case, since the caution message consisting of the character code for the destination indicated by the destination code is displayed, it is necessary to prepare software for each destination even in an information reproducing apparatus having a plurality of destinations. In addition, it is possible to display a caution message in a language that can be understood by the user at each destination using a single software. Therefore, it is not necessary to develop software for each destination, software can be developed in a short period of time at low cost, and software management is facilitated.

  In the first embodiment described above, the correspondence table is configured to be stored in advance in the storage unit 42 in the head unit 2, but the correspondence table is stored in the vehicle-side control device 1 and the ACC power source is connected. In response to the input, the destination code may be sent to the head unit 2 and the correspondence table may be sent to the head unit 2 and stored in the storage unit 42 at the same time.

1 is a diagram showing a configuration of an information reproduction system to which an information reproduction apparatus according to Embodiment 1 of the present invention is applied. It is a figure which shows an example of the correspondence table used with the information reproduction apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the information reproduction apparatus which concerns on Embodiment 1 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Vehicle side control apparatus, 2 Head unit (video / audio output device, information reproduction apparatus), 3 Communication channel, 10 Destination information storage part, 11 Control part, 12 Interface part, 20 Video / audio media reproduction part, 21 operation Part, 22 display part, 23 control part, 30 character data reading part, 40 interface part, 41 destination information discrimination part, 42 storage part, 43 character code discrimination part, 44 display availability judgment part.

Claims (3)

A destination information discriminating unit for discriminating a destination code representing the destination of the vehicle from the vehicle information received from the vehicle;
A playback unit for playing back information recorded on the recording medium;
A character data reading unit for reading character data included in the information reproduced by the reproducing unit;
A character code discriminating unit for discriminating a character code used for the character data read by the character data reading unit based on the character data;
Based on the destination code determined by the destination information determining unit and the character code determined by the character code determining unit, it is determined whether or not the character data read by the character data reading unit can be displayed, and the determination When it is determined that display is possible, the character data is output, and when it is determined that display is impossible, a warning message including a destination destination character code indicated by the destination code is output. A determination unit;
An information reproducing apparatus for a vehicle, comprising: a display unit that displays character data or a caution message output from the display availability determination unit. A storage unit for storing a correspondence table in which a destination code indicated by the destination code and a caution message created by the character code are associated with the destination code;
The display availability determination unit
The character data read unit reads the destination code determined by the destination information determination unit with reference to the correspondence table stored in the storage unit and the character code determined by the character code determination unit. 2. The information reproducing apparatus for a vehicle according to claim 1, wherein whether or not the displayed character data can be displayed is determined. The display availability determination unit
When the character code determined by the character code determining unit is associated with the destination code determined by the destination information determining unit by the correspondence table stored in the storage unit, it is read by the character data reading unit. 3. The caution message comprising the destination destination character code associated with the destination code according to the correspondence table is output when the character data is not associated. Information reproducing device for vehicles.

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