KR100738991B1 - Memory device and car-navigation system for play the memory device - Google Patents

Abstract

In the present invention, a storage medium and a car navigation system for reproducing the same are disclosed.

According to the present invention, a storage medium comprising: a first program area for storing geographic information for navigation; A second program area for storing and playing back multimedia content information; An end area indicating an end of the program area; And a start area including an address of the navigation geographic information and the multimedia content information and respective time information. The storage medium has a sufficient capacity to store geographic information and multimedia content for navigation, and preferably 1GB to 2GB, which may include a geographic information storage capacity 320MB and a multimedia content storage capacity.

Accordingly, the present invention stores navigation geographic information and multimedia information as one CD or DVD, so that navigation and multimedia can be simultaneously started while the vehicle is running. Thus, multimedia playback can be performed using one navigation system. This is possible to provide the effect of increasing the functionality of the system.

Car Navigation, CD, DVD, Multimedia, Geographic Information, Video, Music

Description

MEMORY DEVICE AND CAR-NAVIGATION SYSTEM FOR PLAY THE MEMORY DEVICE}

1 is a block diagram showing a storage medium according to the present invention.

2 is a block diagram showing a car navigation system according to the invention.

3 is a control graph for explaining the main operation of the present invention.

<Explanation of symbols for main drawings>

101: storage medium 105: starting area

107: first program area 109: second program area

111: end area 201: control unit

203: Gyro Compass 205: Geomagnetic Sensor

207 GPS 209 Storage medium drive driver

211: first buffer memory 213: second buffer memory

215: Video output device 217: Voice guide output device

219: multimedia output device 221: key input unit

The present invention relates to a CAR-Navigator using a DVD-ROM, and more particularly, it is possible to arbitrarily store and reproduce sound information or video information for a certain portion of the DVD-ROM. The present invention relates to a storage medium that enables sound or video playback simultaneously with a car navigation operation through a ROM, and a car navigation system having a multimedia playback function using the same.

In recent years, the increasing number of vehicles on the road has caused very large traffic congestion. Although traffic congestion is more serious in large cities, the astronomical rise in land prices requires unacceptable resources to expand the road network. Therefore, as a more practical solution, attempts have been made to use the existing road network as it is, but to efficiently control traffic flow using an artificial intelligence system. As one way, a car-navigation system is used. This is under development. The most basic function of the vehicle navigation system is to track the location of the vehicle in operation and accurately display it on the road map.The secondary function is to provide useful information about the traffic situation of other roads, gas stations, and public offices. There is a function.

Such a vehicle navigation system employs a plurality of sensors and uses location information provided by a GPS (Global Positioning System) satellite, a stand-alone navigation system that tracks the vehicle location using information provided therefrom. It is roughly divided into a batting navigation system and a hybrid navigation system combining these two systems, and the vehicle navigation system described below is applicable to all the above-described vehicle navigation systems.

On the other hand, recently adopted in parallel with such a vehicle navigation system is a vehicle A / V (A / V) system, the sound of TV (TV), VCD (VCD) and DVD (DVD), etc. It is possible to output video screen or sound through video storage media. Therefore, in addition to using the vehicle navigation system while driving, it is possible to listen to sound or watch video.

However, as the A / V system is implemented as a separate system from the vehicle navigation system, the user has a CD for the vehicle navigation system and a CD which can be used as the AV system. The situation is using each system. As a result, the user is inconvenient to use because each user needs to purchase or hold each CD based on each of the different systems, and also use the CDs individually. In addition, since different systems do not interoperate with each other, many difficulties arise in acquiring a plurality of functions of each system, and a risk of a safety accident is caused by using different systems in duplicate.

The present invention has been made to solve the above problems, and an object of the present invention is to partition a first program area for storing geographic information of car navigation with one storage medium and a predetermined range other than the first program area. Accordingly, an object of the present invention is to provide a storage medium comprising a second program area for storing and reproducing sound information or video information.

Another object of the present invention for solving the above problems is, in reproducing a storage medium partitioned into a first program area for storing geographic information and a second program area for storing multimedia, the geographic information stored in the first program unit. It is an object of the present invention to provide a car navigation system capable of performing a car navigation function based on the above, and reproducing sound information or video information recorded by a second program unit according to a user's selection.

According to an aspect of the present invention, there is provided a car navigation system capable of multimedia playback, comprising: a car navigation system capable of multimedia playback, comprising: a first program area for storing navigation geographic information, and multimedia content information; A storage medium comprising a second program area to be played back, an end area indicating the end of the program area, and a start area including addresses for the navigation geographic information and multimedia content information and respective time information; A storage medium drive driver; A first buffer memory for temporarily storing the navigation geographic information provided from the storage medium; A second buffer memory for temporarily storing the multimedia information provided from the storage medium; And when a user is requested to search for arbitrary geographic information, extracts the desired geographic information from the geographic information of the storage medium in the first program area, temporarily stores the geographic information requested in the first buffer memory, and stores the temporarily stored geography. Outputs the video and audio of the information through the display device and the speaker, and when the user receives any multimedia information from the user, extracts the requested multimedia content information from the multimedia content information of the second program area of the storage medium and the second buffer. A controller configured to temporarily store a memory and output the temporarily stored multimedia content information through the display screen and a speaker; It includes.

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According to a preferred embodiment of the present invention, the car navigation system capable of multimedia playback, the sensor for detecting the current position, driving direction and orientation of the vehicle; A key input unit for receiving input from the user of selective playback or simultaneous playback of the navigation geographic information and the multimedia content information stored in the storage medium; An image output device generating the geographic information temporarily stored in the first buffer memory as an electrical signal under a control of the controller and outputting the generated geographic information to the display screen; A voice guide output device for patching voice guide information corresponding to the geographic information output through the image output device from the first program area, converting the voice guide information into an analog signal, and outputting the analog signal to the speaker; And a multimedia output device configured to output multimedia information temporarily stored in the second buffer memory to the display screen and a speaker under the control of the controller. It further includes.

The sensor may include: a GPS for receiving a coordinate signal from a plurality of GPS satellites and calculating a current position; A geomagnetic sensor for detecting a moving direction of the current vehicle; And a gyro compass detecting the orientation of the vehicle; Characterized in that consisting of.
The controller may be configured to transmit an image of preset priority information to the display screen when the user receives an image providing request for the geographic information and the multimedia content information from the user at the same time, or through the split screen. And simultaneously playing the video of the multimedia content information.
In addition, when it is necessary to simultaneously output the voice guidance information corresponding to the geographic information and the sound information of the multimedia content information, the controller requests the user to select one of the two pieces of information and selects any one of the selected information. Only outputs to the speaker.
The display screen may be any one of a quench screen and an LCD panel, and the control unit may include a driving algorithm for driving the quench screen.
Finally, the first buffer memory and the second buffer memory are characterized in that the data is stored and output according to the FIFO method.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a storage medium according to the present invention. As shown, the storage medium is preferably a CD-RW or DVD-RW, and the storage medium 101 includes a navigation address and related information about the central hole 103. In addition, a start area 105 in which address and time information of the multimedia content is stored, a first program area 107 in which the navigation geographic information is stored, and a second program area in which the multimedia content information is stored and reproduced. 109 and an end area 111 indicating the end of the program area.

The storage medium 101 has a sufficient capacity to store geographic information and multimedia contents for navigation. Preferably, the storage medium 101 has a geographic information storage capacity of 320 MB and a multimedia content storage capacity of 1 GB. If necessary, when the multimedia content includes a video, the storage medium 101 may be 2 GB or more. On the other hand, the first program region 107 includes vehicle driving voice information linked to a GPS receiver, which will be described later, including navigation geographic information. The vehicle driving voice information includes a voice guidance for an accident-prone region, a warning voice guidance for speeding, a voice guidance for deceleration driving, and the like.

The navigation geographic information stored in the first program area 107 may update geographic information through a DVD-ROM writer. The update of the geographical information is downloaded after updating the Internet through a wired or wireless communication terminal such as a computer. The geographic information includes geographic image information corresponding to geographic coordinates and additional information corresponding to geographic image information. The additional information is local information, building information, mutual information, geographic detail information, and the like.

The multimedia content information stored in the second program area 109 includes sound information and image information. The sound information includes music information, MP3 information, and MP4 information, and the video information includes video information, DVD information, DMB information, and the like. The second program area 109 is a CD-RW or DVD-RW area capable of recording and reproducing, and when used exclusively for sound, tens to hundreds of MB can be used. However, several GB will be used when recording / playback of sound and video is to be performed.

The start area 105 stores the address of the geographic information and the address information of the multimedia content, and stores the related information of the geographic information and the time information (TOC) of the multimedia content. The related information about the geographic information includes title information and storage capacity for the title, that is, address range. The time information TOC of the multimedia content includes time information for each title and total driving time information corresponding to the content.

Meanwhile, according to an embodiment of the present invention, the first program region 107 is implemented in a CD-R or DVD-R structure, so that the geographic information is preliminary to the first program region 107 when the storage medium 101 is produced. Of course, it can be stored and used for read-only purposes.

2 is a structure of a car navigation system for reproducing output of a storage medium 101 according to the present invention.

As shown, a GPS (207) for receiving a coordinate signal from a plurality of GPS (Global Positioning System) satellites to calculate a current position, a geomagnetic sensor 205 for detecting a traveling direction of a current vehicle, Gyro compass 203 for detecting the orientation of the vehicle, a storage medium drive driver 209 for reproducing geographic information and multimedia information stored in the storage medium 101, and geographic information provided from the storage medium 101. First buffer memory 211 for temporary storage, second buffer memory 213 for temporarily storing multimedia information provided from the storage medium 101, and geographic information stored in the storage medium 101. And a key input unit 221 for instructing selective reproduction or simultaneous reproduction of multimedia information, and geographic information to be searched according to an instruction command of the key input unit 221. Control unit for controlling the storage and output from the area 107 to the first buffer memory 211, and for controlling the storage and output of the multimedia information from the second program area 109 to the second buffer memory 213 An image output device 215 for outputting geographic information stored in the first buffer memory 211 as an electrical signal having a predetermined level based on a control command of the controller 201, and the geographic information. A voice guide output device 217 for patching corresponding voice guide information from the first program area 107 and converting the voice guide information into an analog signal, and the second buffer memory based on a control command of the controller 201. A multimedia output device 219 with the multimedia information stored in the 213, a display panel 223 for displaying the video information of the image output device 215 or the multimedia output device 219; And a speaker 225 for providing output sound of the voice guide output device 217 and the multimedia output device 219.

When the control unit 201 receives an output instruction for the geographic information and the multimedia image from the key input unit 221, the controller 201 transmits a predetermined image to the display panel 223 or geographic information through a split screen. And multimedia video information at the same time.

When the controller 201 receives a play request of the key input unit 221 for the voice guidance information corresponding to the geographic information and the sound information of the multimedia, the controller 201 requests one of the key input units 221 and selects the selected one. Only one piece of sound information is output to the speaker 225.

The display panel 223 is preferably an LCD panel, but if necessary, the display panel 223 may be applied as a watch screen. When the display panel 223 is a watch screen, the control unit 201 further includes a driving algorithm for driving the watch screen.

The first buffer memory 211 and the second buffer memory 213 are for simultaneous reproduction of the geographic information and the multimedia information, and the controller 201 FIFO a predetermined frame or a predetermined capacity for the geographic information and the multimedia information. Save it in the way. Accordingly, the storage medium driving driver 209 selectively extracts and reproduces geographic information and multimedia information stored in the first program area 107 and the second program area 109 according to the instructions of the controller 201. To this end, the controller 201 provides information about the address to the storage medium driving driver 209.

The operation of the present invention will be described as follows.

After powering up the system and initializing the system, the controller 201 receives the start information of the storage medium 101 through the storage medium driving driver 209. The storage medium driving driver 209 reads the stored information into the start area 105 of the CD or DVD installed as the storage medium. It receives the start address and the end address information including the title information of the first program area 107. In addition, start address and end address information are input including the title information of the second program area 109.

The controller 201 recognizes an address for navigation information having geographic information and voice guidance information and an address for multimedia information. Thereafter, the user performs an instruction for acquiring navigation information through the key input unit 221. That is, destination information is input. The destination information may be a final destination to be driven, or may be area information to be searched or area information to be routed through.

The control unit 201 extracts geographic information stored in the first program area 107 of the storage medium 101 according to address information of the navigation information previously recognized. At this time, the geographic information is geographic information from the current location to the destination, and includes route information, surrounding information, and the like. The control unit 201 receives information on the current position, direction, and orientation from the GPS 207, the geomagnetic sensor 205, and the gyro compass 203.

The controller 201 extracts geographic information of the storage medium 101 based on the coordinates of the current location and the coordinates corresponding to the destination. The controller 201 provides the geographic information to the first buffer memory 211. When the data capacity of the geographic information is small, the control unit 201 stores the above-mentioned geographic information in the first buffer memory 211. When the data capacity of the geographic information is large, the first buffer memory (for each frame of a predetermined unit) 211).

The controller 201 provides the geographic information stored in the first buffer memory 211 to the image output device 215, and the image output device 215 displays the geographic information on the display panel 223. . In addition, the control unit 201 receives voice guidance information corresponding to the corresponding coordinates from the storage medium 101 so as to correspond to the current driving position recognized by the GPS 207. The voice guide information is output through the voice guide output device 217 and the speaker 225.

In addition to the continuous operation of the vehicle, the controller 201 extracts geographic information of the storage medium 101 to correspond to the variable coordinates according to the driving direction and speed of the vehicle, and the geographic information to the first buffer memory 211. To provide.

On the other hand, when the key input unit 221 generates a key signal for playing the pre-stored multimedia information to the storage medium 101, the control unit 201 starts the address of the already stored multimedia information to the storage medium 101 The second program area 109 is followed.

The control unit 201 plays the multimedia information stored in the second program area 109 through the storage medium driving driver 209. The second buffer memory 213 stores multimedia information. The controller 201 extracts the multimedia information for each frame or capacity of a predetermined unit and stores the multimedia information in the second buffer memory 213.

The controller 201 starts the multimedia output device 219, and the multimedia output device 219 outputs the multimedia information stored in the second buffer memory 213. The multimedia information includes an image and sound, and provides the information to the display panel 223 and the speaker 225. Accordingly, the controller 201 may provide a split screen to the display panel 223 such that the geographic information output of the image output device 215 is simultaneously output of the image information of the multimedia output device 219. When the algorithm for providing the split screen is not installed, the controller 201 may provide a guide message for selecting any one image, or may output an image corresponding to the last key input.

3 is a graph showing a control pattern for explaining the main operation of the present invention.

As shown in the drawing, the controller 201 sequentially stores the navigation information and the multimedia information into the first buffer memory 211 and the second buffer memory 213. The control unit 201 stores corresponding information corresponding to the capacity of each memory. This describes data pickup by one optical pickup device according to a driving mechanism of CD and DVD applied as the storage medium 101. When picking up data from two optical pickup devices, the first buffer memory 211 and The second buffer memory 213 may store data at the same time.

Subsequently, when the user inputs a key signal for instructing a navigation function, the image output device 215 and the voice guidance output device 217 reproduce the geographic information stored in the first buffer memory 211 and reproduce the geographic information. The voice guidance information is output based on the information. The controller 201 extracts geographic information corresponding to the driving coordinates from the storage medium 101 and stores the geographic information in the first buffer memory 211. As described above, the control unit 201 repeatedly controls the recording and reproducing of the first buffer memory 211 according to the FIFO method. At this time, the control unit 201 stops the operation of the second buffer memory 213 and maintains the multimedia information previously stored in the second buffer memory 213.

On the other hand, when the user requests the multimedia playback through the key input unit 221, the control unit 201 activates the second buffer memory 213. The multimedia output device 219 reproduces and outputs previously stored multimedia information to the second buffer memory 213. At this time, the control unit 201 maintains the operation of the first buffer memory 211 to maintain the reproduction process of the geographic information. Therefore, the geographic information and the multimedia information are reproduced simultaneously.

The controller 201 sequentially stores the geographic information and the multimedia information extracted from the storage medium 101 into the first buffer memory 211 and the second buffer memory 213, and sequentially reproduces each stored information.

As described above, the storage medium according to the present invention and the car navigation system capable of multimedia playback using the same, store the geographic information and multimedia information for navigation as a CD (CD) or DVD (DVD), By simultaneously navigating the navigation and the multimedia while driving, it is possible to reproduce the multimedia using one navigation system, thereby providing an effect of increasing the functionality of the system.

Claims (13)

delete delete delete delete delete delete In a car navigation system capable of multimedia playback, A first program area for storing geographic information for navigation, a second program area for storing and reproducing multimedia content information, an end area for indicating the end of the program area, an address for the navigation geographic information and multimedia content information, and A storage medium drive driver for reproducing a storage medium, comprising: a start area including time information of each; A first buffer memory for temporarily storing the navigation geographic information provided from the storage medium; A second buffer memory for temporarily storing the multimedia information provided from the storage medium; And When a search for arbitrary geographic information is requested from a user, the geographic information of the search medium is extracted from the geographic information of the first program area, and temporarily stored in the first buffer memory, and the temporarily stored geographic information is extracted. Outputs a video and an audio signal through a display device and a speaker, and when the user receives any multimedia information from the user, extracts the requested multimedia content information from the multimedia content information of the second program region of the storage medium and the second buffer memory. A controller which temporarily stores the multimedia content information and outputs the temporarily stored multimedia content information through the display screen and a speaker; Car navigation system comprising a. The method of claim 7, wherein Sensors for detecting the current position, driving direction and orientation of the vehicle; A key input unit for receiving input from the user of selective playback or simultaneous playback of the navigation geographic information and the multimedia content information stored in the storage medium; An image output device generating the geographic information temporarily stored in the first buffer memory as an electrical signal under a control of the controller and outputting the generated geographic information to the display screen; A voice guide output device for patching voice guide information corresponding to the geographic information output through the image output device from the first program area, converting the voice guide information into an analog signal, and outputting the analog signal to the speaker; And A multimedia output device configured to output multimedia information temporarily stored in the second buffer memory to the display screen and a speaker under the control of the controller; Car navigation system capable of multimedia playback further comprising a. The method of claim 8, wherein the sensor, A GPS for receiving a coordinate signal from a plurality of Global Positioning System (GPS) satellites and calculating a current position; A geomagnetic sensor for detecting a moving direction of the current vehicle; And Gyro compass for detecting the orientation of the vehicle; Car navigation system capable of multimedia playback, characterized in that consisting of. The method of claim 7, wherein the control unit, When receiving a request for providing an image for the geographic information and the multimedia content information from the user at the same time, an image of preset priority information is transmitted to the display screen, or an image of the geographic information and the multimedia content information is displayed through a split screen. Car navigation system capable of multimedia playback, characterized in that to play at the same time. The method of claim 7, wherein the control unit, When it is necessary to simultaneously output audio information corresponding to the geographical information and sound information of multimedia content information, requesting the user to select one of the two information, and outputting only one selected information to the speaker. Car navigation system capable of multimedia playback, characterized in that. The method of claim 7, wherein The display screen is characterized in that the display panel of any one of the watch screen and the LCD panel, the control unit is a car navigation system capable of multimedia playback, characterized in that it comprises a driving algorithm for driving the watch screen. The method of claim 7, wherein the first buffer memory and the second buffer memory, Car navigation system capable of multimedia playback, characterized in that the data is stored and output in accordance with the FIFO method.

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