CN2704088Y - Portable laser video-disc machine capable of receiving television - Google Patents
Portable laser video-disc machine capable of receiving television Download PDFInfo
- Publication number
- CN2704088Y CN2704088Y CNU2004200339224U CN200420033922U CN2704088Y CN 2704088 Y CN2704088 Y CN 2704088Y CN U2004200339224 U CNU2004200339224 U CN U2004200339224U CN 200420033922 U CN200420033922 U CN 200420033922U CN 2704088 Y CN2704088 Y CN 2704088Y
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- China
- Prior art keywords
- signal
- video
- switch
- television
- chip microcomputer
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- Expired - Fee Related
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- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
The utility model discloses a portable laser video-disc machine capable of receiving television, comprising a servo decoder and an R. F. head. The servo decoder is used for process the disc signal; the R. F. head is used for processing the TV signal; the TV signal and the disc signal are chosen and controlled by a monolithic computer and an electronic switch; then the pictures are displayed on the TFT display screen; the sound is produced from the loudspeaker; the OSD user interface produced by the monolithic computer enters the main picture in the RGB form and in composition. With the utility model, the user can watch the video-disc and the television when walking out of doors; and te OSD user interface can be adjusted against different user's demand.
Description
Affiliated technical field
The utility model relates to a kind of VCD player, particularly a kind of portable laser video disc player that can teleview.
Background technology
Video disc and TV programme have become topmost entertain mem signal source in consumer's daily life at present, and the appreciation mode is generally at home watches video disc with VCD player, uses the televisor TV reception.But along with the development of society, requiring of people's out-of-home entertainment is increasing, and for example in travelling, driving, go on business process, at this moment the consumer watches video disc and TV reception with traditional approach again, and be just infeasible.
The utility model content
The purpose of this utility model is exactly to provide a kind of portable laser video disc player that can teleview to the consumer, makes the consumer also can watch video disc and teleview in the moving process out of doors.
When realizing the purpose of this utility model, taked following technological means:
In this device, include servo decoding, audio frequency D/A, power amplifier, loudspeaker, TFT driving, TFT display screen, tuner, single-chip microcomputer, electric video switch, electronic audio frequency switch.Servo decoding comes out the demodulates information on the video disc, and outputting digital audio signal and analog video signal, and digital audio and video signals wherein becomes simulated audio signal A-DVD after changing through audio frequency D/A, outputs to the electronic audio frequency switch; Analog video signal wherein then directly comes out, and outputs to the electric video switch; On the other hand, tuner is under the tuning control of single-chip microcomputer, with the tv rf signal demodulation output television audio signals A-TV and the television video frequency signal V-TV of input, television audio signals A-TV wherein outputs to the electronic audio frequency switch, and television video frequency signal V-TV then outputs to the electric video switch; Electronic audio frequency switch and electric video switch are under the selection control of single-chip microcomputer, and selecting from described input signal is that TV signal or video disc signal are exported, and the audio signal output of electronic audio frequency switch is delivered to power amplifier, drives the loudspeaker sounding then; The signal output frequently of the video of electric video switch is delivered to TFT and is driven, and the rgb signal of single-chip microcomputer output simultaneously drives to TFT, to be superimposed with the OSD user interface in picture intelligence, shows on the TFT display screen then.
Because the utility model is a portable product, include servo decoding and tuner, and adopt single-chip microcomputer, electronic switch that TV signal and video disc signal have been carried out selecting control, can realize that therefore the user also can watch video disc and teleview in the moving process out of doors.And adopt single-chip microcomputer to produce the OSD user interface, so just can make full use of single-chip microcomputer programming characteristic flexibly, make the demonstration of complete machine OSD and the adjustment carried out at different user just very flexible, operation is very easy to make the user.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is present embodiment circuit arrangement figure.
Embodiment
Present embodiment is to be how the example explanation realizes the purpose of this utility model with the portable DVD player.
As Fig. 1, small movement is under the control of servo decoding, can read the information on the video disc, servo decoding adopts the chip of Taiwan MTK company, has two, and prime is treated to MT1376, the back level is treated to MT1379, MT1379 includes video encoder, and FLASH stores the servo decoding program, and SDRAM is used for the intermediate data of storing servo decode procedure.The decoded digital video signal of video disc becomes analog video signal after this video encoder is handled, deliver to the electric video switch; And decoded digital audio and video signals is then delivered to audio frequency D/A, is converted to simulated audio signal, delivers to the electronic audio frequency switch then.
On the other hand, a portable open antenna seat is arranged, the telescopic antenna on it can receive the open-circuit television signal, tours antenna on it is that the user is detachable, loads onto the back and just can receive FM radio reception signal, during not radio reception of user, just can not adorn this tours antenna, therefore flexible in the extreme.The output interface of entire antenna seat is the TV RF female seat, by a patchcord RF radiofrequency signal is connected on the tuner, and the RF radiofrequency signal input interface of tuner is a low profile interface, can make main frame do small and exquisitely like this, helps portable use.This patchcord transfers this low profile interface to the TV RF male, utilizes this patchcord also can connect closed-circuit television radio frequency female seat like this, to watch the closed-circuit television signal.Therefore, by present embodiment, the user can watch and listen to multiple TV or radio reception signal that the user also can dismantle antenna pedestal, tours antenna according to using needs, thereby flexible in the extreme.
Tuner is under the tuning control of single-chip microcomputer, the tv rf signal of input is demodulated television audio signals A-TV and television video V-TV signal, television audio signals A-TV wherein outputs to the electronic audio frequency switch, and television video frequency signal V-TV then outputs to the electric video switch; Electronic audio frequency switch and electric video switch are under the selection control of single-chip microcomputer, selecting from described input signal is that TV signal or video disc signal are exported, the audio signal output of electronic audio frequency switch is on the one hand as external linear output A-OUT sound signal, power amplifier is also delivered in its output on the other hand, drives the loudspeaker sounding then; The vision signal of electric video switch is on the one hand as externally exporting the V-OUT vision signal, the TFT driving is also delivered in its output on the other hand, the rgb signal of single-chip microcomputer output simultaneously drives to TFT, to be superimposed with the OSD user interface in picture intelligence, shows on the TFT display screen then.
Electronic audio frequency switch and electric video switch adopt CD4052, and this chip is a kind of chip that non-normal open is used in electron trade, easy to use, and cost is very low.Single-chip microcomputer adopts the MC68HC908LD64 of U.S. MOTORALA company, and the control mouth line of this single-chip microcomputer is many, and its OSD is a latticed form, but flexible programming is programmed for Chinese such as domestic type, and external type is programmed for English, and is therefore very convenient.
Power supply is powered to each several part, and when the user selected the video disc signal, single-chip microcomputer just turn-offed the power supply of tuner, can save power consumption like this, prolongs the service time of portable product battery, reduced heating simultaneously, improved reliability.When the user selects TV signal, single-chip microcomputer just turn-offs the power supply of servo decoding, so not only can save power consumption, prolong the service time of portable product battery, reduce heating simultaneously, improve reliability, also can eliminate high-frequency signal after servo decoding works together to the interference of tuner, thereby improve image quality.
Claims (5)
1. portable laser video disc player that can teleview, include servo decoding, audio frequency D/A, power amplifier, loudspeaker, TFT driving, TFT display screen, it is characterized in that also including tuner, single-chip microcomputer, electric video switch, electronic audio frequency switch, servo decoding comes out the demodulates information on the video disc, and outputting digital audio signal and analog video signal, digital audio and video signals wherein becomes simulated audio signal A-DVD after changing through audio frequency D/A, outputs to the electronic audio frequency switch; Analog video signal wherein then directly comes out, and outputs to the electric video switch; On the other hand, tuner is under the tuning control of single-chip microcomputer, the tv rf signal of input is demodulated television audio signals A-TV and television video V-TV signal, and television audio signals A-TV wherein outputs to the electronic audio frequency switch, and television video frequency signal V-TV then outputs to the electric video switch; Electronic audio frequency switch and electric video switch are under the selection control of single-chip microcomputer, and selecting from described input signal is that TV signal or video disc signal are exported, and the audio signal output of electronic audio frequency switch is delivered to power amplifier, drives the loudspeaker sounding then; The vision signal output of electric video switch is delivered to TFT and is driven, and the rgb signal of single-chip microcomputer output simultaneously drives to TFT, to be superimposed with the OSD user interface in picture intelligence, shows on the TFT display screen then.
2. a kind of portable laser video disc player that can teleview according to claim 1, it is characterized in that when single-chip microcomputer is selected to be output as TV signal, with the power remove of servo decoding, when single-chip microcomputer is selected to be output as the video disc signal, with the power remove of tuner.
3. a kind of portable laser video disc player that can teleview according to claim 1, the TV RF signals input interface that it is characterized in that tuner adopts low profile interface, by a patchcord, transfer this low profile interface to the TV RF male, this male can directly be inserted closed-circuit television radio frequency female seat on the one hand, to watch the closed-circuit television signal; On the other hand, a portable open antenna seat is arranged, its telescopic antenna can receive the open-circuit television signal, and output interface is the TV RF female seat, and described male also can be inserted this TV RF female seat, to watch the open-circuit television signal.
4. a kind of portable laser video disc player that can teleview according to claim 3 is characterized in that also having a tours antenna on the described portable open antenna seat, can receive FM radio reception signal.
5. a kind of portable laser video disc player that can teleview according to claim 3 is characterized in that described tours antenna is that the user is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200339224U CN2704088Y (en) | 2004-06-08 | 2004-06-08 | Portable laser video-disc machine capable of receiving television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200339224U CN2704088Y (en) | 2004-06-08 | 2004-06-08 | Portable laser video-disc machine capable of receiving television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2704088Y true CN2704088Y (en) | 2005-06-08 |
Family
ID=34772902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200339224U Expired - Fee Related CN2704088Y (en) | 2004-06-08 | 2004-06-08 | Portable laser video-disc machine capable of receiving television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2704088Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291549A (en) * | 2011-09-07 | 2011-12-21 | 天津天地伟业数码科技有限公司 | OSD (on screen display) structure based on CORTEX-M3 |
-
2004
- 2004-06-08 CN CNU2004200339224U patent/CN2704088Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291549A (en) * | 2011-09-07 | 2011-12-21 | 天津天地伟业数码科技有限公司 | OSD (on screen display) structure based on CORTEX-M3 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050608 Termination date: 20130608 |