CN1540289A - Laser video disc navigation device and operation method thereof - Google Patents

Abstract

The invention relates to a laser video disc navigation device and its operation method, the navigation device has a CD-ROM and a display, can read a map data disc or video disc through the CD-ROM, and display on the display, and add a video playing device, it includes a processing unit, a image decoding unit, a sound decoding unit and a sound output unit, wherein the processing unit controls the CD-ROM to read and fetch the image data or sound data on the video disc, the image decoding unit decodes the image data to display on the display, the sound decoding unit decodes the sound data to play sound through the sound output unit, achieve the purpose that the navigation device combines the playing function of the video disc.

Description

Videodisc guider and method of operating thereof

Technical field

The present invention relates to a kind of videodisc guider and method of operating thereof, particularly relate to a kind of audio-visual playing circuit that on satellite navigation machine, adds, to play the device of videodisc.

Background technology

Progress along with science and technology, be equiped with satellite navigation machine on many automobiles, traditional satellite navigation machine must set up a satellite antenna, to send and to receive satellite signals, to judge the geographic position at automobile place, again by the map of establishing that stores up in this satellite navigation machine, display with a display, yet the map data amount in this kind satellite navigation machine is quite big, and in order to expand and upgrade map data, so satellite navigation machine is mostly in conjunction with a DVD cd-ROM (DVD ROM), and map data made the DVD disc, so promptly form a guider.

In known technology, as Fig. 1 is the hardware structure block diagram of known guider, this set in this known guider 1 CD-ROM drive 2 only can read a map data disc 10, and be shown on this display 3, and can not the audio-visual disc of DVD playing back,,, but the related key and the software of the audio-visual disc of DVD playing back also are set not as the MPEG-2 code translator because but the related hardware of the audio-visual disc of DVD playing back is not set in this kind guider 1.And general CD-ROM drive can't be connected on traditional guiding aircraft, even can not read this map data disc, therefore forms the wasting of resources of CD-ROM drive simple function.

Summary of the invention

Can not play inconvenience and the shortcoming that audio-visual disc has for solving above-mentioned existing guider, the purpose of this invention is to provide a kind of videodisc guider and method of operating thereof, audio-visual broadcast related hardware and software are incorporated on the guider, can not only play the map data disc and can also put audio-visual disc to reach the CD-ROM drive that utilizes guider, make this CD-ROM drive when reading audio-visual disc, still can carry out the function of map guiding, reach the effect that navigation and audio-visual broadcast are carried out simultaneously, thereby made full use of the CD-ROM drive resource.

The present invention can realize by following measure:

A kind of videodisc guider is provided with a CD-ROM drive and a display, can read a map data disc or audio-visual disc by this CD-ROM drive, and be shown in this display, and this device comprises:

One processing unit is to be connected in this CD-ROM drive, controls this CD-ROM drive and reads image data or audio document on this audio-visual disc;

One image decoding unit is to be connected in this processing unit, deciphers the image data that this CD-ROM drive reads, and forms a video signal, to be shown in this display;

One sound decoding unit is to be connected in this processing unit, deciphers the audio document that this CD-ROM drive reads, and forms the sound signal of at least one sound channel; And

One voice output unit is to be connected in this sound decoding unit, in order to play this sound signal.

Also comprising a storage unit, is to connect this image decoding unit, in order to temporary this image data, so that allow this image decoding cell decode.

Described storage unit is in order to storing the map data on this map data disc, when allowing this CD-ROM drive read audio-visual disc, still can carry out guidance function.

Also comprising an image interface, is to be connected in this image decoding unit and this display, in order to this video signal is converted to the display signal of this display.

Also comprise a sound input interface, be connected in this processing unit, can external at least one microphone, form a karaoke accompaniment function.

Also comprising a man-machine interface, is to be connected in this processing unit, can allow the people control reading, playing of this CD-ROM drive or stop the action.

Described man-machine interface also is connected in this voice output unit, can allow the people control the volume of sound.

Described man-machine interface is to be a plurality of control knobs, includes a play button, a stop key, a size key, a Pause key, a quiet key or a function key.

Described function key is to read this map data disc or this audio-visual disc in order to switch this CD-ROM drive.

Described voice output unit is to comprise:

One note amplifier is provided with at least one sound channel output terminal, in order to amplify at least one sound signal that this sound decoding unit is solved; And

At least one loudspeaker is this sound channel output terminal that is connected in this note amplifier, in order to send this sound signal.

A kind of method of operating of videodisc guider, it comprises the following step:

Operate in audio-visual disc pattern;

Processor control CD-ROM drive reads audio-visual disc and dials to be put;

The handoff functionality key is to carry out navigation feature and to call out map data in the storage unit; And

Dial simultaneously and put audio-visual disc and navigation.

The invention has the advantages that:

Videodisc guider of the present invention and method of operating thereof, audio-visual broadcast related hardware and software are incorporated on the guider, reaching the CD-ROM drive that utilizes guider can not only play the data disc and can also put audio-visual disc, allow this CD-ROM drive when reading audio-visual disc, still can carry out the function of map guiding, reach the effect that navigation and audio-visual broadcast are carried out simultaneously, thereby made full use of the CD-ROM drive resource.

Description of drawings

Fig. 1 is the hardware structure block diagram for known guider;

Fig. 2 is the block diagram for circuit of the present invention;

Fig. 3 is the schematic flow sheet for navigation feature of the present invention; And

Fig. 4 is the schematic flow sheet for audio-video playing function of the present invention.

The conventional letter of major part:

1 guider

2 CD-ROM drives

3 displays

4 video-audio playing devices

10 map data discs

20 audio-visual discs

41 processing units

42 image decoding unit

421 video signals

43 storage unit

44 image interfaces

45 sound decoding units

451 sound signals

46 voice output unit

461 note amplifiers

462 loudspeakers

47 sound input interfaces

471 microphones

48 man-machine interfaces

Embodiment

See also shown in Figure 2ly, be videodisc guider circuit block diagram of the present invention.The present invention utilizes former guider 1 set this CD-ROM drive 2 (as VCD, DVD drive) to read an audio-visual disc 20, and on this display 3, show the image data of this audio-visual disc 20, this audio-visual disc 20 is can be for storing the discs of DVD, VCD, SVCD, CD or MP3 data, and this display 3 is to be a LCD (LCD) or CRT televisor.

And the present invention adds a video-audio playing device 4 on this guider 1, and this video-audio playing device 4 mainly includes a processing unit 41, an image decoding unit 42, a storage unit 43, an image interface 44, a sound decoding unit 45, a voice output unit 46, a sound input interface 47 and a man-machine interface 48 and forms.Wherein this processing unit 41 is connected in this CD-ROM drive 2, be to read this map data disc 10 or this audio-visual disc 20 in order to control this CD-ROM drive 2, and image data or audio document on will this audio-visual disc 20 read out synchronously, is sent to this image decoding unit 42 and this sound decoding unit 45 respectively.

The part of image at first is described, this image decoding unit 42 is connected to this processing unit 41, be to read image data on this audio-visual disc 20 in order to decipher this CD-ROM drive 2, forming a video signal 421, and the image data that this image decoding unit 42 is separated can be the image data of MPEG-1 or MPEG-2 coding.Yet these image decoding unit 42 decoding speeds are faster than the broadcasting speed of film, so the present invention utilizes this storage unit 43 to be connected to this image decoding unit 42, and the image data that earlier temporary this CD-ROM drive 2 is read is to wait for the decoding of this image decoding unit 42.

When this image decoding unit 42 is decoded into this video signal 421, this video signal 421 is converted to the display signal of this display 3 by this image interface 44, so that be shown on this display 3, so this image interface 44 is connected between this image decoding unit 42 and this display 3.

The sound part then is described, wherein this sound decoding unit 45 is connected in this processing unit 41, be in order to decipher the audio document that this CD-ROM drive 2 is read, with the sound signal 451 that forms at least one sound channel, 5.1 sound channels for example, and the voice data that this sound decoding unit 45 is deciphered can be the voice data of MPEG, AC3, DTS, Doby (DOLBY) or MP3 coding.Wherein this voice output unit 46 is connected in this sound decoding unit 45 again, in order to play this sound signal 451.

And this voice output unit 46 includes a note amplifier 461 and at least one loudspeaker 462 is formed, the data that may comprise multichannel because of this audio document, therefore this note amplifier 461 can be provided with the output terminal of multichannel, in order to amplify the sound signal 451 of the multichannel that this sound decoding unit 45 solved, and this loudspeaker 462 is connected in the multichannel output terminal of this note amplifier 461, therefore must each sound channel connect a loudspeaker 462, in order to the sound signal 451 of sending this multichannel.

In addition, the present invention also is provided with a sound input interface 47 and is connected in this processing unit 41, this sound input interface 47 can external at least one microphone 471, can allow the people pass through this microphone 471 and plays the karaoke audiovisual disc, forms the videodisc device of a tool karaoke accompaniment function.

The present invention is except playing the required hardware of videodisc 20, still need a man-machine interface 48 and a software to play the read mode of videodisc 20 and switching CD-ROM drive 2, this man-machine interface 48 is connected in this processing unit 41, mainly be to allow the people control reading of this CD-ROM drive, play or stop ... Deng action, this man-machine interface 48 also is connected to this voice output unit 46, can allow the people control the volume of its sound, therefore this man-machine interface 48 is made up of a plurality of control knob, this control knob may include a play button, one stop key, one size key, one Pause key, an one quiet key or a function key ... or the like, and this function key is exactly that to be used for switching this CD-ROM drive 2 be in the pattern that reads this map data disc 10, or play the pattern of this audio-visual disc 20.

See also shown in Figure 3ly, be the schematic flow sheet of navigation feature of the present invention.The present invention is in order to allow CD-ROM drive 2 do audio-visual broadcast the time, still can have navigation function, therefore strengthen the capacity of this storage unit 43, and change the flow process that reads of guider 1, as the present invention during in map data disc pattern (101), the user needs earlier this map data disc 10 to be put into this CD-ROM drive 2 (102), this processing unit 41 is at first controlled the map data (103) (as whole big Taibei map) that this CD-ROM drive 2 reads the user location in this map data disc 10, and this map data is stored in this storage unit 43 (104), so the user can take out this map data disc 10 (105), unless the user has exceeded this location (106), just need put into this map data disc 10 again, otherwise can not be used in the renewal map data, and show map data (107) in this storage unit 43, and can switch to audio-visual disc pattern (108) always.

Seeing also shown in Figure 4ly, is the schematic flow sheet for audio-video playing function of the present invention.As the present invention during in audio-visual disc pattern (201), the user should put into to CD-ROM drive 2 (202) by audio-visual disc 20, this processing unit draws promptly controls image data and the audio document (203) that this CD-ROM drive 2 reads this audio-visual disc 20, and be played in this display 3 or this voice output unit 46 (204), if in the time of need navigating midway, as long as switch this function key (205), then this audio-visual disc 20 can enter this map data disc pattern, carry out this navigation feature and the map data (206) of calling in storage unit 43 at once, and the play mode of getting back to audio-visual disc continue to play, and dials the double effects of putting and navigating simultaneously and can reach.

Therefore, the present invention really can provide a kind of videodisc guider by the above-mentioned technology that discloses, and is far different in known design, can improve whole use value.Above-mentioned graphic, the explanation that discloses; only be embodiments of the invention; all personnel that are skillful in this technology can do other all changes and retouching according to above-mentioned explanation certainly; and these changes still belong to invention spirit of the present invention, and therefore scope of patent protection of the present invention is as the criterion with the scope of the following claim that is defined.

Claims (11)

1, a kind of videodisc guider is provided with a CD-ROM drive and a display, can read a map data disc or audio-visual disc by this CD-ROM drive, and be shown in this display, it is characterized in that this device comprises:

One processing unit is connected in this CD-ROM drive, controls this CD-ROM drive and reads image data or audio document on this audio-visual disc;

One image decoding unit is to be connected in this processing unit, deciphers the image data that this CD-ROM drive reads, and forms a video signal, to be shown in this display;

One sound decoding unit is to be connected in this processing unit, deciphers the audio document that this CD-ROM drive reads, and forms the sound signal of at least one sound channel; And

One voice output unit is to be connected in this sound decoding unit, in order to play this sound signal.

2, videodisc guider as claimed in claim 1 is characterized in that also comprising a storage unit, connects this image decoding unit, in order to temporary this image data, so that allow this image decoding cell decode.

3, videodisc guider as claimed in claim 2 is characterized in that described storage unit, is in order to storing the map data on this map data disc, when allowing this CD-ROM drive read audio-visual disc, still can carry out guidance function.

4, videodisc guider as claimed in claim 1 is characterized in that also comprising an image interface, is connected in this image decoding unit and this display, in order to this video signal is converted to the display signal of this display.

5, videodisc guider as claimed in claim 1 is characterized in that also comprising a sound input interface, is connected in this processing unit, can external at least one microphone, form a karaoke accompaniment function.

6, videodisc guider as claimed in claim 1 is characterized in that also comprising a man-machine interface, is connected in this processing unit, can allow the people control reading, playing of this CD-ROM drive or stop the action.

7, videodisc guider as claimed in claim 6 is characterized in that described man-machine interface also is connected in this voice output unit, can allow the people control the volume of sound.

8, videodisc guider as claimed in claim 6 is characterized in that described man-machine interface is to be a plurality of control knobs, includes a play button, a stop key, a size key, a Pause key, a quiet key or a function key.

9, videodisc guider as claimed in claim 8 is characterized in that described function key is to read this map data disc or this audio-visual disc in order to switch this CD-ROM drive.

10, videodisc guider as claimed in claim 1 is characterized in that described voice output unit is to comprise:

One note amplifier is provided with at least one sound channel output terminal, in order to amplify at least one sound signal that this sound decoding unit is solved; And

At least one loudspeaker is this sound channel output terminal that is connected in this note amplifier, in order to send this sound signal.

11, a kind of method of operating of videodisc guider is characterized in that, it comprises the following step:

Operate in audio-visual disc pattern;

Processor control CD-ROM drive reads audio-visual disc and dials to be put;

The handoff functionality key is to carry out navigation feature and to call out map data in the storage unit; And

Dial simultaneously and put audio-visual disc and navigation.

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