CN1355653A - Video information conversion method - Google Patents
Video information conversion method Download PDFInfo
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- CN1355653A CN1355653A CN00134813A CN00134813A CN1355653A CN 1355653 A CN1355653 A CN 1355653A CN 00134813 A CN00134813 A CN 00134813A CN 00134813 A CN00134813 A CN 00134813A CN 1355653 A CN1355653 A CN 1355653A
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- video signal
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Abstract
The present invention is a video information switching method which uses at first the basic input and output system to judge whether the aim of the user is to receive TV program or to operate the computer in advance at the time of the computer being on and before it being under operation of the system. When the user selects to receive TV program, the video information modulating chip, video information searching chip and the video information control chip are controlled by the basic input and output system directly to make the modulation and search control of the video information signal and to drive the display to show the visual picture converted from the video information signal. The method provided by this invention makes that the operating sequence of seeing TV program with the computer is nearly the same as the operating sequence with the traditional TV set.
Description
The present invention relates to a kind of video information conversion method, particularly a kind ofly need not enter operating system, just the video information conversion method that can utilize computer to teleview.
In fashion day by day along with multimedia and the Internet, and the thing followed is widely applied software development, the function of computer is no longer limited to traditional program calculating of what or document processing, but gets involved gradually among the daily life, becomes our life and the indispensable good companion of amusement.Particularly some young scholars or solitary youth more are inclined to what and use merits such as computer replacement TV, video recorder to answer, and purchase the overhead cost of selling household electrical appliances with saving.
The method that tradition utilizes computer to teleview except the mounted video signal card of computer itself (VGA Card), also need be bought an external tuner card (Tuner Card).See also shown in Figure 1, tuner card 20 includes a video signal modulating unit 21 and a video signal retrieval unit 22, wherein cable of cable TV 10 is the video signal modulating units 21 that are connected to tuner card 20, after the video signal V demodulation of cable of cable TV 10 being carried by video signal modulating unit 21, asking for via video signal retrieval unit 22 is a recall signal C again, and by VGA card 30 driving displays of installing in the computer 40 recall signal C is shown as visual image.
Comprise in the above-mentioned method of utilizing computer to teleview that video signal modulating unit 21, video signal retrieval unit 22, video signal card 30 and display 40 all need to control by operating system, therefore when the user wants to utilize computer to teleview, must be introduced into operating systems such as Windows or OS2, restarting the control program of tuner card 20 and video signal card 30 can watch, compare with the operation sequence that tradition televiews, longer by the what stand-by period, comparatively inconvenience in the use.
The mirror what is above-mentioned to be utilized in the method that computer televiews, the problem of waits for too long, main purpose of the present invention is: a kind of video information conversion method, can not install as yet or not enter as yet under the situation of operating system at computer, directly carry out the video signal conversion with motherboard control video signal demodulation chip, devices such as video signal retrieval chip, video signal control chip and display, so that this kind video signal conversion operations traditional TV service routine of convergence what more, and need not pass through very long wait and operating process.
For reaching above-mentioned purpose, video information conversion method of the present invention, its step includes:
Obtain a power supply starting signal; When this power supply starting signal is TV selection signal, obtains a channel and choose signal; Choose signal according to this channel, obtain a video signal; Retrieve this video signal; Drive a driving display this video signal is shown as visual image.Obtain a power supply starting signal; When this power supply starting signal of what is TV selection signal, initialization one video signal control chip, a video signal modulation chip and video signal retrieval chip; Obtain a channel and choose signal; Choose signal according to this channel, obtain a video signal; By this video signal modulation chip this video signal is demodulated into a restituted signal; By this video signal retrieval chip this restituted signal being asked for is a recall signal; And drive a driving display by this video signal control chip this recall signal is shown as visual image.
Its method of operation approaches to operate the program that television set televiews when using method of the present invention to teleview with computer, need not pass through very long stand-by period and complicated operations process.Because computer has television function, can reduce the expense of family's expense in addition.
Relevant detailed content of the present invention and technology, conjunction with figs. is described as follows:
Fig. 1: the functional block diagram of existing video information conversion method;
Fig. 2 A: the flow chart of video information conversion method of the present invention;
Fig. 2 B: the flow chart of video information conversion method of the present invention;
Fig. 3: be the functional block diagram of video information conversion method of the present invention.
The graphical sysmbol explanation:
10 ... cable of cable TV
20 ... tuner card
21 ... the video signal modulating unit
22 ... the video signal retrieval unit
30 ... the video signal card
31 ... the video signal control unit
40 ... display
50 ... power supply unit
60 ... basic output/input unit
62 ... hard disk
70 ... the sound effect control chip
80 ... inputting interface
90 ... loudspeaker
A ... sound signal
C ... recall signal
P ... power supply starting signal
S ... channel is chosen signal
T ... restituted signal
V ... video signal
Video information conversion method flow chart of the present invention with and functional block diagram, see also shown in Fig. 2 A, the 2B, 3.At first, obtain a power supply starting signal P by power supply unit 50, the power supply of expression computer has been activated (step 101); Wherein, the computer of indication can be PC or notebook computer etc. herein; Secondly, utilize ROM-BIOS (BIOS) 60 to distinguish that power supply starting signal P is that a TV is selected a signal or an operation selection signal (step 102); When power supply starting signal P was an operation selection signal, 60 of ROM-BIOS (BIOS) were carried out the normal boot-strap audit program, and are written into operating system (step 103) by hard disk 62; When power supply starting signal P is TV selection signal, initialization one video signal modulating unit 21, a video signal retrieval unit 22, a video signal control unit 31 and a sound effect control unit 70 (step 104); Wherein, video signal modulating unit 21 can be a video signal modulation chip (TV Tuner Chip), video signal retrieval unit 22 can be video signal retrieval chip (CaptureChip), video signal control unit 31 can be a video signal control chip (VGA Chip), and sound effect control unit 70 can be a sound effect control chip (Audio Chip); Then obtaining a channel by inputting interface 80 chooses signal S (step 105); Choose signal S according to channel, obtain a video signal V and a sound signal A (step 106) by cable of cable TV 10; By video signal modulating unit 21 video signal V is demodulated into a restituted signal T (step 107); By video signal retrieval unit 22 restituted signal T being asked for is a recall signal C (step 108): start the ZV port (step 109) between video signal retrieval unit 22 and the video signal control unit 31; By the ZV port recall signal C is sent to video signal control unit 31 (step 110); By video signal control unit 31, drive a display 40 recall signal C is shown as visual image (step 111); At last, drive loudspeaker 90 by sound effect control unit 70 and present sound signal A (step 112)
Claims (17)
1. video information conversion method is used what and is installed as yet or do not enter the computer of operating system as yet, it is characterized in that its step comprises:
Obtain a power supply starting signal;
When this power supply starting signal is TV selection signal, obtains a channel and choose signal;
Choose signal according to this channel, obtain a video signal;
Retrieve this video signal; And
Drive a driving display this video signal is shown as visual image.
2. video information conversion method as claimed in claim 1 is characterized in that its step also comprises:
When this power supply starting signal is an operation selection signal, be written into this operating system.
3. video information conversion method as claimed in claim 1 is characterized in that its step also comprises:
Initialization one video signal control unit, a video signal modulating unit and a video signal retrieval unit.
4. video information conversion method as claimed in claim 3 is characterized in that described video signal control unit is a video signal control chip.
5. video information conversion method as claimed in claim 3 is characterized in that described video signal modulating unit is a video signal modulation chip.
6. video information conversion method as claimed in claim 3 is characterized in that described video signal retrieval unit is a video signal retrieval chip.
7. video information conversion method as claimed in claim 3 is characterized in that its step also comprises:
Initialization one sound effect control unit.
8. video information conversion method as claimed in claim 7 is characterized in that described sound effect control unit is a sound effect control chip.
9. video information conversion method as claimed in claim 1 is characterized in that the step of retrieving this video signal also comprises:
By this video signal modulating unit this video signal is demodulated into a restituted signal: and
By this video signal retrieval unit this restituted signal being asked for is a recall signal.
10. video information conversion method as claimed in claim 1 is characterized in that the step that driving display shows also comprises:
Drive this display by the video signal control unit recall signal is shown as visual image.
11. video information conversion method as claimed in claim 10 is characterized in that its step also comprises:
Start the ZV port (ZV Port) between video signal retrieval unit and the video signal control unit;
By this ZV port recall signal is sent to the video signal control unit.
12. video information conversion method as claimed in claim 1 is characterized in that described computer is a notebook computer.
13. a video information conversion method, the application what is installed as yet or is not entered the computer of operating system as yet, it is characterized in that its step comprises:
Obtain a power supply starting signal;
When this power supply starting signal of what is TV selection signal, initialization one video signal control chip, a video signal modulation chip and video signal retrieval chip;
Obtain a channel and choose signal;
Choose signal according to this channel, obtain a video signal;
By this video signal modulation chip this video signal is demodulated into a restituted signal;
By this video signal retrieval chip this restituted signal being asked for is a recall signal; And
Drive a driving display by this video signal control chip this recall signal is shown as visual image.
14. video information conversion method as claimed in claim 13 is characterized in that its step also comprises: when this power supply starting signal is an operation selection signal, be written into this operating system.
15. video information conversion method as claimed in claim 13 is characterized in that its step also comprises:
Initialization one sound effect control chip.
16. video information conversion method as claimed in claim 13 is characterized in that the step of retrieving video signal also comprises:
Start the ZV port (ZV Port) between video signal retrieval chip and the video signal control chip;
By this ZV port recall signal is sent to this video signal control chip.
17. video information conversion method as claimed in claim 13 is characterized in that described computer is a notebook computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001348132A CN1177476C (en) | 2000-12-01 | 2000-12-01 | Video information conversion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001348132A CN1177476C (en) | 2000-12-01 | 2000-12-01 | Video information conversion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1355653A true CN1355653A (en) | 2002-06-26 |
| CN1177476C CN1177476C (en) | 2004-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001348132A Expired - Fee Related CN1177476C (en) | 2000-12-01 | 2000-12-01 | Video information conversion method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1177476C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327345C (en) * | 2004-01-15 | 2007-07-18 | 富士通株式会社 | Information processing device and program |
-
2000
- 2000-12-01 CN CNB001348132A patent/CN1177476C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327345C (en) * | 2004-01-15 | 2007-07-18 | 富士通株式会社 | Information processing device and program |
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| Publication number | Publication date |
|---|---|
| CN1177476C (en) | 2004-11-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041124 Termination date: 20121201 |