CN1767613A - Video data processing system and its control method - Google Patents

Abstract

The present invention provides a video data processing system and a control method. The system includes a storage device for converting video data into digital data; a digital media recording and playback device for converting the digital data into a first format signal; a computer for converting the digital data into a second format signal; and a controller for selectively transmitting the digital data to the computer and the digital media recording and playback device. The method includes selecting to process the digital data with one of the digital media recording and playback device and the computer; when the digital media recording and playback device is selected, the controller is connected to the digital media recording and playback device and accesses the storage device via the controller; and when the computer is selected, the controller is connected to the computer and accesses the storage device via the controller.

Description

Video data processing system and its control method

technical field

The invention relates to a video data processing system and a control method thereof, in particular to a video data processing system and a control method thereof which use a controller to combine a digital media recording and playback device with a computer.

Background technique

A digital video disc player (Digital Video Disk Player, DVD Player) is a very common electronic audio-visual device in modern families, and another common electronic device in the family—personal computer—is also equipped with digital video discs. access device. Among them, the former is often called Stand Alone DVD Player.

See Figure 1. FIG. 1 is a schematic diagram of a conventional video data processing system 100 . The video data processing system 100 includes a television set 110 and a stand-alone digital video disc player 120; wherein, the television set 110 and the stand-alone digital video disc player 120 are connected with a TV signal line 130, and the stand-alone digital video disc player The device 120 includes a digital media player (Digital Media Player Board) 122 and a storage device (driver) 124. The storage device 124 is used to read the video data on the optical disc (not shown in Fig. 1 ) loaded in the storage device 124 and convert it into digital data composed of 0 and 1; After the digital data output by 124 is converted into TV format data, it is sent to the TV 110 via the TV signal line 130 for output and playback. See Figure 2. FIG. 2 is a schematic diagram of a video data processing system 200 composed of a computer and its equipped optical drive. 210 is a computer screen, which is used to output and display computer format data; 220 is a computer mainframe, which shows a motherboard 222 included in it and a storage device 224 for accessing CD data; wherein the computer mainframe 220 passes through Computer signal line 230 sends data to computer screen 210 for output playback. Same as the storage device 124 in FIG. 1 , the function of the storage device 224 in FIG. 2 is also to read the video data loaded on the optical disc (not shown in FIG. 2 ) of the storage device 224 and convert it into digital data; The motherboard 222 converts the digital data sent by the storage device 224 into computer format data, and then sends it to the computer screen 210 via the computer signal line 230 for output and playback.

When the digital video disc access device equipped with the computer can not only play the video data stored on the optical disc, but also write the video data into the optical disc, that is, it has the function of writing digital video disc, take the system shown in Figure 2 as an example , the motherboard 222 can convert a batch of data in computer format into digital writing data, and then send it to the storage device 224 for accessing the optical disc data, and the storage device 224 writes the corresponding video data according to the digital writing data. CD-ROM. And when the user wants to use the digital video disc recording and playback device equipped with the computer to write the image data played by the TV into a disc, the current common way is to use an external TV capture card (TV capture card) to collect TV format signals and After being converted into computer format signals, they are input into the computer, and then the batch of computer format signals are converted into digital writing data by the motherboard in the above-mentioned manner, and then written into the optical disc by the storage device 224 . The advantage of this common method is that the digital video disc recording and playback device that the existing computer is equipped with can be used, but when writing data, the computer must play the section of image data; and the external TV acquisition card also increases The hardware cost of the entire system, and the performance and data processing speed of the TV capture card will also affect the quality of the recorded image data. Furthermore, even if the digital media playback device 122 in Fig. 1 also possesses video recording function and is a digital media recording and playback device (Digital Media Recorder Board, DMR board), it can record TV image signals without collecting TV signals through a computer, but Fig. 1 The storage device 124 in Fig. 2 and the storage device 224 in Fig. 2 are actually two devices with exactly the same function, and are also possessed by ordinary users' families, but they cannot be shared and must have these two hardwares that overlap each other. It is also an unnecessary waste of resources.

Contents of the invention

Therefore the main purpose of the present invention is to provide a kind of video data processing system and its control method, utilize a controller to combine a digital media recording and playback device and a computer, and make this digital media recording and playback device and the computer can share a video data Storage device, to overcome the above-mentioned problems in the conventional technology.

The invention discloses a video data processing system. The system includes a storage device for converting video data stored on a storage medium into digital data; a digital media recording and playback device for converting the digital data into a first format signal; a computer for converting the Digital data is converted into a second format signal according to a computer data format; and a controller is connected to the storage device, the computer and the digital media recording and playback device, and the controller is used to selectively transmit the digital data to the computer and The digital media recording and playback device.

The invention also discloses a control method of the video data processing system. The method is used for processing digital data, comprising: selecting one of a digital media recording and playback device and a computer to process digital data; when selecting to process the digital data with the digital media recording and playback device, connecting the digital media recording and playback device with a controller , the digital media recording and playback device accesses a storage device through the controller; and when the computer is selected to process the digital data, the controller is connected to the computer, and the computer accesses the storage device through the controller.

Description of drawings

FIG. 1 is a schematic diagram of a conventional video data processing system.

FIG. 2 is a schematic diagram of another existing video data processing system.

Fig. 3 is a schematic diagram of the first embodiment of the video data processing system of the present invention.

FIG. 4 is a schematic diagram of a second embodiment of the video data processing system of the present invention.

FIG. 5 is a flow chart of the first embodiment of the video data processing system control method of the present invention.

Fig. 6 is a flow chart of the second embodiment of the control method of the video data processing system of the present invention.

Explanation of main component symbols

100, 200, 300, 400 Video data processing system

110, 3101 TV screen

210, 3102 Computer screen

410 Digital TV

130, 3301, 4301 TV signal line

230, 3302, 4302 Computer signal line

120 Standalone DVD player

220 computer mainframe

122, 3221, 4221 Digital media player

32211, 42211 External video input port

222, 3222, 4222 motherboard

32221, 42221 edit module

32222, 42222 output module

124, 224, 324, 424 storage device

340, 440 Controller

350, 450 Power control unit

Detailed ways

See Figure 3. Fig. 3 is a schematic diagram of the first embodiment of the video data processing system of the present invention. 3101 is a TV screen, and 3102 is a computer screen; the video data processing system 300 includes: a digital media recording and playback device 3221, a computer motherboard 3222, a controller 340 and a storage device 324; wherein the digital media recording and playback device 3221 and the TV screen 3101 are connected through a TV signal line 3301 , while the motherboard 3222 is connected with the computer screen 3102 through a computer signal line 3302 . The function of the digital media recording and playback device 3221 is the same as that of the existing digital media recording and playback device 122 in FIG. The TV screen 3101 can be played; the function of the main board 3222 is the same as that of the existing computer main board 222 in Fig. 2, and can be used to convert the digital data converted from the video data of the optical disc into a batch of computer format data, and send them via the computer signal Line 3302 is output to computer screen 3102 for playback. 340 is the controller of the present invention, which is connected with the digital media recording and playback device 3221, the motherboard 3222 and the storage device 324; A digital video disc access device equipped with a computer contains the same storage device. Through the controller 340 of the present invention, the stand-alone DVD player and the DVD access device equipped with the computer can share the same storage device. When the user wants to play the video data stored on the optical disc from the TV screen 3101, the controller 340 can choose to connect the digital media recording and playback device 3221 and the storage device 324; A complete audio-visual system, the storage device converts the video data on the loaded optical disc (not shown in Figure 3) into digital data and sends it to the controller 340, and the controller 340 sends the digital data to the digital media recording and playback device 3221 After the digital data is converted into TV format data by the digital media recording and playback device 3221, it is output to the TV screen 3101 via the TV signal line 3301 for playback. As shown in FIG. 3 , the digital media recording and playback device 3221 also includes an external image input port 32211 , and the user can also receive a TV signal, satellite signal or cable TV signal through the external image input port 32211 and play it on the TV screen 3101 . And when the user wants to play the video data stored on the optical disc by the computer screen 3102, or when wanting to edit the video data with a computer, the main board 3222 and the storage device 324 can be selected to be connected by the controller 340; 3222 and computer screen 3201 just form a complete audio-visual system, and the storage device converts the video data on the loaded optical disc (not shown in Figure 3) into digital data and sends it to the controller 340, and the controller 340 converts the digital data sent to the mainboard 3222, and then the mainboard 3222 converts the digital data into computer format data, and then outputs the digital data to the computer screen 3102 via the computer signal line 3302 for playback, or the editing module 32221 included in the mainboard 3222 edits and processes the digital data. Batch computer format data.

From the above, it can be seen that the video data processing system 300 of the present invention utilizes the controller 340 so that the existing stand-alone DVD player and the DVD player equipped with a computer can share a storage device 324 . As shown in Figure 3, the video data processing system of the present invention can also include a power control unit 350, which can turn off the power supply of one of the digital media recording and playback device 3221 and the computer motherboard 3222 that is not currently in use, so as to further save hardware In addition to resources, it also saves power.

In the video data processing system 300 of the present invention, in addition to playing the image data loaded on the optical disc in the storage device 324 by the TV screen 3101 and the computer screen 3102 as mentioned above, the main board 3222 can also use the After converting a batch of stored computer format data (such as image data downloaded from the network or stored in other ways) into digital data, the controller 340 directly sends it to the digital media recording and playback device 3221 without going through the storage device 324. After the digital media recording and playback device 3221 converts the data into TV format, the data is sent to the TV screen 3101 via the TV signal line 3301 for playback. The video data processing system 300 of the present invention can also directly transmit the digital data sent from the digital media recording and playback device 3221 to the motherboard 3222 by the controller 340, and convert the digital data into computer format data by the motherboard 3222 to include The editing module 32221 of the computer edits and processes the batch of computer format data; or the output module 32222 included in the motherboard 3222 can be used to convert the edited computer format data into digital data and send it to the controller 340, and then send it to the digital data. The media recording and playback device 3221 converts the data into TV format, and sends it to the TV screen 3101 for playback via the TV signal line; wherein, the digital data sent by the digital media recording and playback device 3221 can be externally received image signals, which increases user The convenience of recording and editing video signals. When the storage device 324 included in the video data processing system 300 of the present invention can not only be used to read the data on the optical disc, but also can be used to write data into the optical disc, the computer format data after the editing can be read by the motherboard The output module 32222 included in the 3222 converts the data into digital writing data and sends it to the controller 340, and then sends it to the storage device 324 to write the video data into an optical disc. Compared with the existing TV audio-visual system and the computer, after the data is written into the optical disk through the storage device, and then the optical disk is used to transfer the data between the two systems, the present invention is undoubtedly more efficient and the program and structure are simpler .

In addition, the digital TV that is quite popular today has both an analog signal receiving end and a digital signal receiving end to receive and display TV format data and computer format data, and can be used as a TV screen and a computer screen at the same time. See Figure 4. FIG. 4 is a schematic diagram of a second embodiment of the video data processing system of the present invention. 410 is a display capable of receiving and displaying TV format data and computer format data. The video data processing system 400 includes a digital media recording and playback device 4221 and a computer motherboard 4222; wherein the motherboard includes an editing module 42221 and an output module 42222 , the digital media recording and playback device 4221 includes an external image input port 42211, and the digital media recording and playback device 4221 is connected to the display 410 through a TV signal line 4301, while the motherboard 4222 is connected to the display 410 with a computer signal line 4302 . All the other are devices with the same function as the constituent devices included in the first embodiment of the present invention shown in FIG. 3: 424 is a storage device, 440 is a controller, and 450 is a power control unit; wherein the controller 440 It is connected with the digital media recording and playback device 4221, the motherboard 4222 and the storage device 424, and the power control unit 450 is connected with the digital media recording and playback device 4221 and the motherboard 4222 and can control its power on or off. In this way, through the display 410 that can receive and display TV format data and computer format data, the structure of the video data processing system 400 of the present invention is more concise; , the present invention can save hardware resources and power supply benefits are more obvious.

See Figure 5. FIG. 5 is a flow chart of the first embodiment of the video data processing system control method of the present invention.

Step 500: start;

Step 510: Select one of the digital media recording and playback device and the computer to process a batch of digital data; when selecting to process the batch of digital data with the digital media recording and playback device, perform step 520; when selecting to process the batch of digital data with a computer, Execute step 525;

Step 520: Connect the digital media recording and playback device with a controller, and the digital media recording and playback device accesses a storage device through the controller; execute step 530;

Step 525: the controller is connected to the computer, and the computer accesses the storage device via the controller; step 535 is executed;

Step 530: output the digital data to the digital media recording and playback device; convert the digital data into a first format signal; output the first format signal to a display;

Step 535: output the digital data to the computer; the computer converts the digital data into a second format signal conforming to a computer data format;

Step 540: end.

In the flow of the control method of FIG. 5, if in step 510, the digital media recording and playback device or the computer is selected to access a video data loaded in a storage medium (such as a DVD disc) in the storage device, then the method Before step 510, the process includes step 501 to convert the video data in the storage medium to obtain the batch of digital data. And if in step 510, the digital media recording and playback device or the computer is selected to collect image data, then the method flow includes step 502 before step 510 to convert a batch of first format signals from the digital media recording and playback device into The batch of digital signals may include step 503 of converting a batch of second format signals from the computer into the batch of digital signals. Also, if choosing to use the computer to access a batch of digital data in step 510 refers to choosing to use the computer to play the batch of digital data, step 535 further includes outputting the second format signal to a display; and if selecting in step 510 to use The computer accessing a piece of digital data means that when the batch of digital data is selected to be edited by the computer, step 535 further includes editing the signal in the second format by using the computer, and may even further include reproducing the edited signal in the second format. It is converted into a digital write signal and written into the storage device.

See Figure 6. FIG. 6 is a flow chart of the second embodiment of the video data processing system control method of the present invention.

Step 600: start;

Step 610: choose to process a batch of digital data with one of a digital media recording and playback device and a computer; when selecting to process the batch of digital data with a digital media recording and playback device, perform step 620; when selecting to process the batch of digital data with a computer, Execute step 625;

Step 620: Connect the digital media recording and playback device with a controller, and the digital media recording and playback device accesses a storage device through the controller; execute step 630;

Step 625: the controller is connected to the computer, and the computer accesses the storage device through the controller; execute step 635;

Step 630: The digital media recording and playback device converts the first format signal into the batch of digital writing data; outputs the batch of digital writing data to the controller;

Step 635: the computer converts the second format signal into the batch of digital writing data; output the batch of digital writing data to the controller;

Step 640: the controller inputs the batch of digital writing data into the storage device and writes it into a storage medium;

Step 650: end.

Figure 6 illustrates the flow of the second embodiment of the control method of the present invention, that is, after converting computer data or TV data into digital writing data with a computer or a digital media recording and playback device, the data is transmitted to the storage device via the controller and then written. A process of storing media.

When the video data processing system of the present invention has the power-saving function as described above, in the method flow illustrated in the above-mentioned FIG. 5 and FIG. When one of the computers is selected to process digital data, the power to the other is turned off.

In summary, the present invention utilizes a controller to combine the traditional TV audio-visual system and computer audio-visual system that operate separately, that is, the independent digital video disc recorder with the TV screen and the optical disc drive equipped with the computer can share a single storage device; and by controlling the power supply, in addition to saving hardware resources, it also actively saves power supply. Through the video data processing system of the shared storage device of the present invention, when it is desired to record or further edit the image data played by the TV, the image data of the TV can be converted into digital signals and then directly sent to the computer, which can be converted into computer signals by the computer. The included editing module edits, and then the edited image data can be converted back to digital data through the output module of the computer motherboard, and then written into the storage medium in the storage device. As for the storage device included in the video data processing system of the present invention, the storage medium accessed by it can also include, in addition to the digital video disc (DVD) exemplified above, such as a laser video disc (Video Compact Disk, VCD) or Other various storage media used to store video and audio data, as long as the computer motherboard and digital media recording and playback device used in the system have relevant access functions.

The present invention provides a video data processing system and its control method, which simplifies and improves the hardware structure and operation flow of the traditional video data processing system by sharing the storage device through a controller; The power consumption of the whole system is saved.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope of the present invention.

Claims (23)

1. A video data processing system comprising: a storage device for converting video data stored on a storage medium into digital data; A digital media recording and playback device (Digital Media Recorder Board), used to convert the digital data into a first format signal; a computer for converting the digital data into a second format signal according to a computer data format; and A controller is connected to the storage device, the computer and the digital media recording and playback device, and the controller is used to selectively transmit the digital data to the computer and the digital media recording and playback device. 2. The system according to claim 1, connected to an output device, wherein the computer and the digital media recording and playback device are connected to the output device, wherein the output device is used to receive the first format signal and the second format signal , and the output device can be used to display the received signal. 3. The system according to claim 1, further comprising a power control unit for selectively supplying power to the computer and the digital media recording and playback device, wherein when the digital data output by the storage device is sent to the When using a computer, the power control unit turns off the power of the digital media recording and playback device, and when the digital data output by the storage device is sent to the digital media recording and playback device, the power control unit turns off the power of the computer. 4. The system as claimed in claim 1, wherein the storage device is further used for writing digital writing data sent by the controller into the storage medium. 5. The system according to claim 4, wherein the computer is further used to convert the second format signal into digital write data and then output to the controller, and the controller is also used to transmit the digital write data to the storage device. 6. The system of claim 5, the computer further comprising: an editing module for editing the second format signal; and An output module is used for converting the edited second format signal into the digital writing data for output. 7. The system according to claim 4, wherein the digital media recording and playback device is also used to convert the first format signal into digital write data and then output to the controller, and the controller is also used to write the digital data to the storage device. 8. The system as claimed in claim 1, wherein the storage device is an optical disk drive (ODD), and the storage medium is an optical disc. 9. The system of claim 1, wherein the first format signal is an analog signal. 10. A control method for a video data processing system for processing digital data, the video data processing system has a storage device, a digital media recording and playback device, a computer and a controller, the controller is connected to the storage device, the The method includes the following steps: (a) select one of the digital media recording and playback device and the computer to process the digital data; (b) when the digital media recording and playback device is selected to process the digital data, the controller is connected to the digital media recording and playback device, and the digital media recording and playback device accesses the storage device through the controller; and (c) When the computer is selected to process the digital data, the controller is connected to the computer, and the computer accesses the storage device via the controller. 11. The method of claim 10, further comprising: Converting a video data in the storage medium to obtain the digital data. 12. The method of claim 11, wherein step (c) further comprises: output the digital data to the computer; The computer converts the digital data into a second format signal conforming to a computer data format. 13. The method of claim 12, wherein the method further comprises: editing the second format signal into digital write data; outputting the digital writing data to the storage device; Writing the digital write data to the storage device. 14. The method of claim 11, wherein the video data processing system is connected to a display device and step (b) further comprises: inputting the digital data into the digital media recording and playback device; converting the digital data into a first format signal; Outputting the first format signal to the display device. 15. The method of claim 10, further comprising: A second format signal inside the computer is converted into the digital data. 16. The method of claim 15, wherein the digital data is a digital write data, and the step (c) further comprises: the computer outputs the digital write data to the controller; and The controller writes the digital writing data into the storage medium. 17. The method of claim 15, further comprising: outputting the digital data to the digital media recording and playback device; The digital media recording and playback device converts the digital data into a first format signal. 18. The method of claim 10, wherein the method further comprises: The digital media recording and playback device converts the first format signal to obtain the digital data. 19. The method of claim 18, wherein the digital data is a digital write data, and the step (b) further comprises: The digital media recording and playback device outputs the digital writing data to the controller, and the controller writes the digital writing data into the storage medium. 20. The method of claim 18, wherein step (c) further comprises: output the digital data to the computer; the computer compiles the digital data into a first format signal; Output and store the first format signal to the storage device. 21. The method of claim 10, wherein step (b) further comprises turning off a power supply of the computer. 22. The method as claimed in claim 10, wherein step (c) further comprises turning off the power supply of the digital media recording and playback device. 23. The method of claim 10, wherein the video data processing system further comprises an external video input port, and the digital data comes from the external video input port.

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