KR200321995Y1 - Combined car navigation system having cdp and dvdp function - Google Patents

Abstract

The present invention relates to a car navigation system which also functions as a compact disc and a digital video disc player.

According to the present invention, an input device unit formed to allow a user to select various operation modes; An output device for outputting audio and video signals so that a user can recognize them; CD / DVD decks; And an A / V playback processing unit for reproducing data processed by a standard encoding method such as MPEG / AC-3, various sensors for navigation, a main CPU for controlling various devices, and executing navigation software. , And a compact disc and digital video comprising a navigation / DVD playback device including a storage device connection unit for selectively outputting a signal output from the CD / DVD deck to a main CPU or A / V playback processing unit according to a processing method. By providing a car navigation system that also functions as a disk player, it is possible to selectively or simultaneously perform car navigation, movie watching, and music watching using a deck mechanism for playing a disc.

Description

COMPONENT CAR NAVIGATION SYSTEM HAVING CDP AND DVDP FUNCTION

The present invention relates to a navigation system that combines the functions of a compact disc and a digital video disc player, and more specifically, by using a deck mechanism for playing a disc, car navigation, movie watching, and music viewing can be selectively performed. The present invention relates to a car navigation system that combines compact disc and digital video disc player functions, which saves installation space and improves ease of use.

Recently, inside a vehicle, not only various equipments essential for driving the vehicle, but also a DVD system for reproducing a movie, a CD system for reproducing music, and a car navigation system for informing a driver of the location and route information of a destination. It is not directly related to the operation, and various equipments for the convenience of the passengers including the driver are selectively installed and used. In addition, the DVD and CD system has a trend to include a changer mechanism that provides a function for storing a plurality of discs at a time to be selectively played by the user.

Here, briefly look at the configuration of the DVD system among the above equipment, as follows.

Referring to Figure 1,

The DVD system includes an information input unit (1) formed to allow a user to input various operation modes;

A reproduction processor (3) which obtains an encoded Audio / Video (abbreviated as A / V) signal from a disc and decodes it;

A disk changer (4) for storing a plurality of disks, including a deck into which a disk is loaded, and replacing a specific disk selected by a user from among the disks;

A memory unit 5 in which various kinds of information are recorded;

A display unit 6 for outputting an input signal as a viewable signal; And

And a control section 2 for outputting an operation control signal to the display section 6, the playback processing section 3, and the disc changer 4 on the basis of the signal output from the information input section 1.

The CD system has almost the same configuration as the DVD system, and since the disc containing the data is a CD-ROM or an audio CD and differs only in that only a corresponding signal is recorded and processed, the detailed description is omitted.

On the other hand, the car navigation system is used to inform the user of the exact location of the destination, the optimal route from the starting point and the road situation to the destination, and the location and speed information received from the GPS (Global Positioning System) satellite and the vehicle. Comparing and calculating the output signals of the gyro sensor and the speedometer provided in the vehicle to detect the current position and speed of the vehicle, and display the current position and direction of the vehicle on the map of the A / V system screen installed in the vehicle An automotive navigation system with the ability to provide information.

Such a car navigation system generally includes components as shown in the block diagram of FIG. 2. The configuration and operation of a conventional car navigation apparatus will be briefly described with reference to the accompanying drawings.

First, when a user inputs a desired destination name through the key input unit 11, the controller 10 reads the information from the map data storage unit 13 to the graphic processor 14 and the monitor 16. The user can check this by outputting the display unit.

Once the destination has been identified, guidance of the route to the destination is provided with position and speed information received from the GPS satellites via the GPS (Global Positioning System) receiver 18 and the gyro sensor 20 and vehicle speedometer 22 provided in the vehicle. The control unit 10 compares and calculates signals output from various sensors such as) to detect the current location of the vehicle, and then reads a map of the corresponding area from the map data storage unit 13 to monitor the monitor 16 installed in the vehicle. This is done by displaying the current position of the vehicle and the direction of travel.

In this case, in addition to the visual display, a system may be provided to warn the user through a sound processor 24 or a speaker 26 by using a warning sound regarding whether the path is correct or incorrect, and the other control unit 10 may include a memory unit (ROM and a ROM). It also provides a variety of convenience information through the RAM, including 28).

The conventional car navigation system as described above mainly uses a CD-ROM as the map data storage unit 13, and some devices have recently used a DVD-ROM or a hard disk.

On the other hand, a general personal computer uses a standardized interface method such as ATA / ATAPI / USB to read data stored in various storage devices such as a CD-ROM, a hard disk, and a memory stick. The processor becomes the master device and multiple storage devices operate as multiple slave devices to read data from multiple storage devices.

In addition, these DVD players, CD players, MP3 players, etc., take into consideration the price and performance, and store / construct multimedia data such as MP3, audio CD, DVD movies, etc. Play using V dedicated processor.

Meanwhile, in the conventional car navigation system, in the data encoding and decoding method, a data compression / recording method for the car navigation system uses a non-standard method other than the standard method such as MPEG / AC-3 as in the DVD player or CD player. use.

Therefore, the MP3, audio CD, DVD movie, etc. applied to the car navigation system and the CD / DVD system have different interfaces for data access, and the conventional CD / DVD system records them in the car navigation DVD-ROM. The recorded data cannot be reproduced, and the data recorded on a CD / DVD-ROM such as music or movie cannot be reproduced by the car navigation system.

As such, since the conventional CD / DVD system and the car navigation system are incompatible with each other, in order to use all of the music, movie and car navigation systems in the vehicle, the car navigation system must be provided separately from the CD / DVD system. There was a problem that takes a lot of installation cost and installation space.

In addition, since the data capacity that can be stored in the CD-ROM, which has been mainly used as a recording medium for a car navigation system, is limited, and the CD-ROM is used as a recording medium of a car navigation system due to the limitation of the data capacity. Because it could not contain accurate electronic maps and numbers, it could not provide users with a satisfactory level of geographic information.

The present invention is to solve the problems as described above, the specific purpose of the present invention is to use a single system to perform car navigation, movie watching and music watching, games, etc., or the installation space and To provide a navigation system that combines compact disc and digital video disc player functionality, which saves cost and improves ease of use.

1 is a block diagram showing the structure of a conventional DVD system.

2 is a block diagram showing the configuration of a conventional car navigation system.

Figure 3 is a block diagram showing the configuration of a navigation system that combines the functions of a compact disc and a digital video disc player according to the present invention.

4 is a block diagram showing an embodiment of a navigation system that combines the functions of a compact disc and a digital video disc player according to the present invention;

Explanation of symbols on the main parts of the drawings

110: input unit 120: output unit

130: CD / DVD deck / changer 131: disc storage magazine

132: pickup head / mechanism / signal processing unit 133: deck mechanism control unit

134: changing mechanism control unit 135: data processing unit

140: car navigation / DVD playback device 141: input device processing unit

142: output unit processing unit 143: expansion unit connection

144: A / V dedicated playback processing unit 145: Storage device connection

146: Main CPU 147: Sensor

148: power supply unit 150: expansion device

Features of the present invention for achieving the above object,

An input device unit configured to allow a user to select various operation modes;

An output device for outputting audio and video signals so that a user can recognize them;

CD / DVD decks; And

And a navigation / DVD playback device for selectively or simultaneously processing the navigation software obtained from the CD / DVD deck or data processed by a standard encoding method according to the operation mode of the input device section and transferring the data to the output device. Is configured;

The CD / DVD reproducing apparatus includes an input device processing unit for converting a command applied from the input device unit to a main CPU and transmitting a signal output from the CD / DVD deck to the main CPU or A / V according to a processing method. A storage connection unit for selectively outputting to a reproduction processing unit, a main CPU for controlling various devices according to a control signal from the input device processing unit, and executing the navigation software provided through the storage connection unit, and an output from the storage connection unit; A / V dedicated playback processing unit for reproducing data processed by a standard encoding method such as MPEG or AC-3, and converting the data processing result generated by the main CPU or A / V dedicated playback processing unit Output device processing unit to transmit, memory for recording various information required for system and various sensors for navigation A to provide a car navigation system also serves as a compact disk and a digital video disc player functions, characterized in that comprises.

Preferably, the navigation system which combines the functions of a compact disc and a digital video disc player according to the present invention further comprises a magazine for storing a plurality of discs and further comprising a changer for replacing a particular disc selected by the user among several discs. The user selects the disk selected by the user through the input unit automatically and moves it to the CD / DVD deck.

More preferably, the navigation system, which combines the functions of the compact disc and the digital video disc player according to the present invention, has a signal level, a communication protocol, and the like in order to connect various expansion devices and the main CPU using an appropriate standard interface standard. The apparatus further includes an expansion hatch connecting unit for converting / mediating.

In addition, the expansion device is selected from a mobile phone, Ethernet, Bluetooth, Serial communication module, Paralle communication module, wired / wireless communication module such as USB and storage device such as a memory stick.

Data access from the CD / DVD deck is based on a standard interface such as Advanced Technology Attachment (ATA) / Advanced Technology Attachment Packet Interface (ATAP) / Video BUS or the like, and direct memory access (DMA) or programmed input / output (PIO) mode. Read using.

In addition, the car navigation / DVD reproducing apparatus outputs the A / V signal output to the corresponding output unit using a multiplexing technique, thereby simultaneously outputting a plurality of signals of different methods through the same output unit.

On the other hand, in the above configuration, the input device unit may alternatively or alternatively use a known input device known to the relevant company such as a remote controller, a key panel, a joystick, a microphone, and a touch screen, and share the same for DVD / CD / MP3 playback and navigation Use the device.

In addition, the output device unit may alternatively or use known output devices such as LCD, TV, audio, etc., and share a common output device for DVD / CD / MP3 playback and navigation. A plurality of messages are provided to the user at the same time using a method of inserting announcements.

An embodiment of the present invention having such a configuration will be described with reference to the accompanying drawings.

In the following embodiments, the CD / DVD deck and the changer are integrated as an example.

3 is a block diagram showing the configuration of a navigation system that also functions as a compact disc and a digital video disc player according to the present invention.

The car navigation system, which combines the functions of a compact disc and a digital video disc player, has a large input device unit 110 formed so that a user can select various operation modes, an output device unit 120 for outputting audio and video signals, and a CD. Outputs the operation control signal to various devices including the output device unit 120 and the CD / DVD deck / changer 130 according to the signal output from the / DVD deck / changer 130, the input device unit 110 The car navigation system allows a user to check both non-standard encoding data such as navigation and games and standard encoding data such as MPEG through one input / output device unit 120 and a CD / DVD deck / changer 130. / DVD playback device 140.

Examples of the input device 110 in the above configuration may include a remote controller, joystick, keyboard, microphone, touch screen, etc. The input device 110 may be a command selected by the user, for example, destination setting, route search, CD Commands such as / DVD play, game play, etc. are transmitted to the car navigation / DVD play device 140 by wire / wireless.

The output device 120 may include a TV / LCD monitor, a speaker, and the like installed in a vehicle.

The CD / DVD deck / changer 130 is largely a disk storage magazine 131, a pickup head / mechanism / signal processing unit 132, a deck mechanism control unit 133, a changing mechanism control unit 134, and a data processing unit 135. It is composed of

The disk storage magazine 131 stores disks storing electronic maps, navigation, games, DVD movies, music CDs, video CDs, MP3s, and the like, and typically stores about 4-10 sheets.

The pickup head / mechanism / signal processing unit 132 rotates a deck mechanism, an optical pickup drive motor, and a disk composed of an optical pickup head for reading data from a CD or DVD disc using a laser beam, and a motor for driving the optical pickup head. It consists of a spindle motor, a changing mechanism for removing the disk from the magazine and loading it on the deck, a sensor signal processor for controlling the drive motor, and a signal processor for filtering, amplifying and demodulating the high frequency (HF) signal read from the disk.

The deck / changing mechanism control unit 133 and 134 control the motors in the deck mechanism and the changing mechanism to move to a desired position / speed.

The data processor 135 converts the demodulated digital data stream into a standard format such as ATAPI so that the navigation / DVD player 140 can read it.

In addition, the car navigation / DVD playback device 140 is largely divided into an input device processing unit 141, an output device processing unit 142, an expansion device connection unit 143, an A / V-only playback processing unit 144, and a storage device connection unit ( 145, a main CPU 146, a sensor and a power supply 147, 148, and a memory 149.

The input device processing unit 141 converts and transfers commands from the various input device units 110 into signals that can be read by the main CPU 146.

On the other hand, the output device processing unit 142 converts the result of the application execution in the main CPU 146 into a signal that can be transmitted to the user through the output device unit 120, such as LCD / TV / speakers.

The output device processor 142 multiplexes a digital or analog output signal according to an application when the processor for non-standard data processing such as navigation and games and the A / V-only playback processor 144 have their own outputs. To print.

The expansion device connection unit 143 includes various expansion devices 150 including the wired / wireless communication module such as a mobile phone, an Ethernet, a Bluetooth, a serial communication module, a parallel communication module, a USB, and a storage device such as a memory stick. In order to connect the CPU 146 using an appropriate standard interface standard, the signal level, communication protocol, and the like are converted / mediated.

The A / V dedicated playback processing unit 144 acquires the A / V data encoded in a standard manner from a mass storage device such as a CD / DVD using a standard interface method such as ATAPI / ATA / PIO / Video BUS. Decode it and convert it to analog or digital A / V signal.

The storage device connection unit 145 uses a standard interface method such as ATAPI / ATA / PIO / Video BUS from a storage device such as a CD / DVD in which a large amount of application data such as movies, music, games, and electronic maps are stored. In order to read and transfer the data to the main CPU 146 or the A / V dedicated playback processing unit 144, control of the flow of data therebetween and instructions from the main CPU or A / V dedicated playback processing unit are transferred to the storage device.

The main CPU 146 interprets a user's command read from the input device unit 110, and executes a software application such as a route guide / game, and outputs the result through the output device unit 120. The input / output data from the expansion unit 150 is processed.

In addition, the position / speed and the like acquired from various sensors 147 are processed, and the position information is calculated by acquiring data from a large-capacity memory device such as a DVD-ROM in which application data such as a map is stored.

Then, the A / V dedicated playback processing unit 144, which serves to decode the compressed / stored data using a standard encoding method such as MPEG / AC-3, is controlled.

In addition, it plays a role of relaying A / V data encoded in a non-standard manner from a mass storage device such as a CD / DVD / memory stick to a dedicated processor included therein and controlling other peripheral devices.

The sensor and power supply unit 147, 148 supplies power to the entire system, and converts the position / direction / speed information input from a sensor such as a GPS / Gyroscope / vehometer into an electrical signal and transmits it to the main CPU 146. .

An example of practical application of the present invention configured as described above will be described with reference to FIG. 4.

4 is a block diagram illustrating an embodiment of a navigation system that combines the functions of a compact disc and a digital video disc player according to the present invention.

First, the input device processor 141 uses a navigation and DVDP remote controller, and the input device processor 141 uses an IR sensor for processing a signal output from the remote controller.

An NTSC TV 121 and a speaker 122 are used as the output device, and the output device processor uses an NTSC encoder 142a and an audio amplifier 142b.

The A / V dedicated playback processing unit 144 uses an MPEG decoder and the storage device connection unit 145 uses an IDE bus controller.

In the figure, ADC, UART, Counter represent the part for processing the signal output from the sensor (Gyroscope, GPS, vehicle speedometer, etc.), changer deck 136 is a pickup head / mechanism / signal processing unit, deck mechanism control unit, changing mechanism It includes a control unit and a data processing unit.

The use example of the present invention configured as described above will be described below.

Example 1

First, an example of using the navigation function will be described.

First, when the user selects the directions menu using the remote controller 110, the Main CPU 146 issues a command to the CD / DVD deck / changer 130 to store a DVD-ROM containing an electronic map in a disk storage magazine. Select from 131 to be loaded into the changer deck 136.

When the user inputs a destination using the remote controller 110, the main CPU 146 receives a current location / direction / speed from the sensors 147 and receives current traffic information using a communication module. Then, the location information of the selected destination is read from the electronic map, and the route to the destination is calculated through the route calculation algorithm.

The main CPU 146 guides the user to the destination through the TV 121 and the speaker 122 by using the current location information, traffic information, electronic map, calculated route, and the like.

In addition, by using the additional information database stored in the DVD-ROM, the user can provide information necessary for the operation such as accident risk area or major building name along with the route guidance, and if the vehicle is out of the scheduled route, the route modified through re-search To provide.

Example 2

Next, an example in which the user selects a DVD movie playback mode will be described.

When the user selects the movie viewing menu using the remote controller 110, the main CPU 146 commands the CD / DVD deck / changer to select the DVD title in which the selected movie is stored in the disc storage magazine 131 and change the changer. To be loaded into deck 136.

After the DVD title is loaded on the changer deck 136 as described above, the main CPU sends a movie screening standby command to the MPEG decoder 144 through mutual communication, and gives control of the ATAPI interface (IDE BUS). Pass it over.

When a user inputs a normal command for playing a movie, that is, a key such as "play", "double speed play", etc. through the remote controller 110, the main CPU 146 transmits the command to the MPEG decoder 144. .

Accordingly, the MPEG decoder 144 reads and decodes MPEG2 and AC-3 encoded video / audio data from the changer deck 136 by ATAPI, and decodes the separated video and audio signals from the NTSC encoder 142a, Via the audio amplifier 142b, the TV 121 and the speaker 122 provide the user with the image and sound.

The main CPU 146 stores the pre-calculated route and guidance method in the memory 149, and simultaneously provides the route guidance service to the user by using a picture in picture (PIP) mode or inserting an announcement while the movie is playing. You can also provide

The same applies to the case of the DVD movie when playing a Video CD movie or an MP3 stored on a CD / DVD-ROM.

Example 3

On the other hand, when the user selects the game mode using the remote control 110, the following operations are made.

When the user selects the game mode using the remote controller 110, the main CPU 146 issues a command to the CD / DVD deck / changer 130 to select a DVD-ROM including game software from the magazine 131. Load into changer deck 136.

The main CPU 146 reads the game software from the changer deck 136 through the ATAPI interface and executes it.

The game proceeds based on the user input using the remote controller 110 or the joystick.

Example 4

Finally, an example in which the user selects the MP3 play mode using the remote controller 110 is as follows.

When the user selects the MP3 playback mode by using the remote controller 110, when the data source is selected as the USB memory stick 150 as an expansion device, the main CPU 146 reads the MP3 file stored in the USB memory stick 150. And pass it to the MPEG decoder 144.

The MPEG decoder 144 decodes the received MP3 file and delivers it to the user as an audio signal through the speaker 122.

Embodiments and examples of the present invention described above can be substituted, modified and changed in various ways without departing from the spirit of the present invention for those skilled in the art to which the present invention belongs However, the technical scope of the present invention is not limited by the above-described embodiment and use example or the accompanying drawings.

According to the present invention, the cost of the product can be reduced by sharing the CD / DVD deck, which occupies the largest portion of the total cost of the product, for navigation and movie music playback.

In addition, the DVD deck allows two dedicated processors to access only data using multiplexing methods, but can execute two or more different applications in an optimal manner using the existing standardized interface.

In addition, the magazine in the CD / DVD deck / changer is equipped with navigation map data DVD-ROM, music CD, MP3 CD, DVD movie, VCD movie, etc. at the same time. By automatically loading the deck by using, there is an effect that the inconvenience of the user to replace the disk is eliminated.

Moreover, the user's convenience is increased by using a single input (remote control, etc.) and output device (TV / speaker), and navigation and multimedia (movie / music / entertainment) applications can be installed in a vehicle dashboard with limited space. If you want to perform at the same time economically can be implemented, there is an effect of reducing the cost and space burden on the user.

Claims (10)

An input device unit configured to allow a user to select various operation modes; An output device for outputting audio and video signals so that a user can recognize them; CD / DVD decks; And And a navigation / DVD playback device for selectively or simultaneously processing the navigation software obtained from the CD / DVD deck or data processed by a standard encoding method according to the operation mode of the input device section and transferring the data to the output device. Is configured; The CD / DVD reproducing apparatus includes an input device processing unit for converting a command applied from the input device unit to a main CPU and transmitting a signal output from the CD / DVD deck to the main CPU or A / V according to a processing method. A storage connection unit for selectively outputting to a reproduction processing unit, a main CPU for controlling various devices according to a control signal from the input device processing unit, and executing the navigation software provided through the storage connection unit, and an output from the storage connection unit; A / V dedicated playback processing unit for reproducing data processed by a standard encoding method such as MPEG or AC-3, and converting the data processing result generated by the main CPU or A / V dedicated playback processing unit Output device processing unit to transmit, memory for recording various information required for system and various sensors for navigation Characterized in that comprises a compact disk and a digital video disk car navigation system also serves as a player. The compact disc and digital video disc player according to claim 1, wherein the car navigation system further comprises a magazine for storing a plurality of discs and a changer for replacing a specific disc selected by a user from among the discs. Car navigation system with functions. The apparatus of claim 1, wherein the navigation system further comprises an expansion window connection unit for converting / mediating a signal level, a communication protocol, and the like to connect the expansion device and the main CPU using an appropriate standard interface standard. Navigation system with compact disc and digital video disc player. The device of claim 3, wherein the expansion device comprises a wired / wireless communication module such as a mobile phone, an Ethernet, a Bluetooth, a serial communication module, a parallel communication module, a USB, and a memory. A navigation system with a compact disc and digital video disc player, characterized in that it is selected from a storage device such as a stick. 4. A compact disc according to any one of claims 1 to 3, wherein the data access from the CD / DVD deck uses a DMA or PIO mode scheme according to a standard interface such as ATA / ATAPI / Video BUS. Car navigation system with digital video disc player. 4. The compact disc and digital video disc player according to any one of claims 1 to 3, wherein the car navigation / DVD reproducing apparatus outputs the A / V signal output to the corresponding output unit using a multiplexing technique. Car navigation system with functions. The apparatus of claim 1, wherein the input unit is selected from a remote controller, a joystick, a keyboard, a microphone, a touch screen, and uses a common input unit for DVD / CD / MP3 playback and navigation. A navigation system with a compact disc and digital video disc player function. The apparatus of claim 1, wherein the output unit is selected from a TV / LCD monitor or a speaker, and uses a common output unit for DVD / CD / MP3 playback and navigation. Car navigation system with compact disc and digital video disc player. 9. The compact disc and digital video disc player function of claim 8, wherein the main CPU provides a plurality of video messages to a user at the same time through one output device through a picture in picture (PIP) mode. Navigation system. 9. The compact disc and digital video disc player functions of claim 8, wherein the main CPU provides the user with the announcement of the geographical information through the speaker while the video signal is being output through the TV or LCD monitor. Combined navigation system.