CN100426229C - Video and audio multimedia processing method and device for computer system - Google Patents

Abstract

A method for processing audio and video multimedia of a computer system, the computer system having a multimedia processing unit and at least one reading device, the reading device being used to load audio and video signals from a storage medium, the multimedia processing unit being able to be set to a multimedia processing mode when the computer system is not turned on, the method comprising the following steps: (A) determining whether the computer system is set to start the multimedia processing mode; (B) determining whether the computer system is in an unpowered state, and if so, detecting whether the storage medium is present in the reading device; and (C) when the presence of the storage medium is detected, enabling the multimedia processing unit to execute various processing functions on the audio and video signals in the multimedia processing mode.

Description

Audio-visual multimedia processing method and device for computer system

technical field

The present invention relates to an audio-visual multimedia computer system, in particular to a computer system with functions of automatically playing and storing audio-visual multimedia.

Background technique

Due to the popularity of electronic technology, various electronic devices such as personal computers, notebook computers, and personal digital assistants have become part of modern people's lives. In addition to document processing, functions such as accessing the Internet or entertainment audio-visual are also necessary for busy work. Added a lot of leisure fun.

In terms of entertainment audio-visual functions, it is generally used to read audio-visual multimedia discs such as VCD, DVD, etc. And match the display screen of the computer system to watch the audio-visual multimedia data on the optical disc, but because the optical drive is powered by the power supply after the computer system is turned on, the optical drive cannot be operated if the computer system is turned off. Therefore, before enjoying the audio-visual multimedia data, the computer system must still be turned on, and it is very inconvenient to wait for the host computer to load the operating system (OperationSystem).

Aiming at the aspect that the computer can provide the operation of the optical drive when the computer is in the power-off state, U.S. Patent No. 6,266,714 discloses a control technology that can provide the operation of the optical drive when the computer is in the power-off (Power-Off) state, and provides a method that does not need to wait for the operating system to be completely A computer system that can play CD music only after loading.

However, there is still no computer system that can still receive unformatted data from an external microphone (Microphone) or digital video camera (DV) and convert it to analog/digital and store it in the computer when the computer system is not turned on, or from, for example, A computer product that reads multimedia audio-visual files in the memory card in an external reading device such as a card reader and can directly and automatically play them.

Contents of the invention

Therefore, the purpose of the present invention is to provide a computer that can receive unformatted data from an external video/audio input device and then convert it into analog/digital and store it in the computer, or read it from the computer. The invention relates to an audio-visual multimedia processing method and a device thereof for a computer system which reads files in a computer system and can directly play them.

Therefore, the audio-visual multimedia processing method of the computer system of the present invention, the computer system has a multimedia processing unit and at least one reading device, the reading device is used to load the audio-visual signal of the storage medium, the multimedia processing unit is not installed in the computer system It can be set to the multimedia processing mode when starting up, and the method includes the following steps: (A) judging whether the computer system is set to start the multimedia processing mode; (B) judging whether the computer system is not powered on, if not In the power-on state, then detect whether there is the storage medium in the reading device; and (C) when detecting the existence of the storage medium, make the multimedia processing unit perform the processing for the audio-visual signal in the multimedia processing mode various processing functions.

The audio-visual multimedia processing method of the computer system of the present invention, the computer system is to cooperate with the unformatted audio-visual signal input provided by the video/audio input device, the method includes the following steps: (E) judging whether the computer system is set to Start the multimedia processing mode; (F) judge whether the computer system is not powered on, if it is not powered on, then detect whether the unformatted audio-visual signal is input; and (G) when it is detected that there is an unformatted When an audio-visual signal is input, the multimedia processing unit can perform various processing functions on the audio-visual signal in the multimedia processing mode.

The computer system with audio-visual multimedia automatic playing function of the present invention provides unformatted audio-visual signal input in conjunction with a video/audio input device. The computer system includes a computer processing unit, a multimedia processing unit, a switching circuit and a display control unit.

The computer processing unit is in the computer operation mode when the computer system is turned on, and outputs the host signal; the multimedia processing unit can be set to the multimedia processing mode when the computer system is not turned on, and is used to process the unformatted The audio-visual signal input is a multimedia signal conforming to the playback format; the switching circuit is electrically connected to the computer processing unit and the multimedia processing unit for switching the computer operation mode and the multimedia processing mode; the display control unit is electrically connected to the computer The processing unit and the media processing unit receive the host signal and the multimedia signal, select one as an input, and scale the input to an appropriate size to provide an external display function.

When the computer system is not turned on and the multimedia processing unit is set, the switching circuit is switched to the multimedia processing mode, and in the multimedia processing mode, the multimedia processing unit can detect the video/audio input device The unformatted video signal input is provided to perform various processing functions on the video signal.

Description of drawings

Fig. 1 is a circuit block diagram, illustrates the preferred embodiment of the computer system of the present invention with audio-visual multimedia automatic play function; And

FIG. 2 is a flowchart illustrating a preferred embodiment of the audio-visual multimedia processing method of the computer system of the present invention.

[Description of main component symbols]

100 computer system 22 optical drive

101 selection signal 23 storage device

11 computer processing unit 31 display device

12 multimedia processing unit 32 audio playback device

131～134 switching unit 33 video/audio input device

14 Display control unit 5 Storage media

15 power amplifier 51 memory card

Steps 201~214 52 Laser video disc

2 reading device 21 card reading device

Detailed ways

The aforementioned and other technical content, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings.

As shown in Fig. 1, the preferred embodiment of the computer system 100 with audio-visual multimedia automatic playing function of the present invention is that a display device 31, an audio playback device 32 and a video/audio input device 33 are connected (the functions will be described later) .

In this embodiment, the display device 31 is a liquid crystal screen, the audio playback device 32 is a loudspeaker, and the video/audio input device 33 is a device that can receive video and audio signals, such as a common microphone and a digital camera, for providing unformatted The video and audio signals are input to the computer system 100 .

The computer system 100 with audio-visual multimedia automatic playing function of the present invention includes a computer processing unit 11, a multimedia processing unit 12, a plurality of switching circuits 131-134, a display control unit 14, and a power amplifier 15. In addition, the computer system 100 still includes two groups The reading device 2 and the storage device 23 , the reading device 2 can be used to load the video and audio signals of the storage medium 5 .

It must be noted that the computer processing unit 11 and the multimedia processing unit 12 have separate power supply paths, therefore, by setting the triggers of the control keys (not shown) that belong to different modes of power activation to start the power supply in different modes, it is convenient You can choose to operate in computer operation mode or multimedia processing mode.

In addition, the present invention sets the control right of the computer operation mode as a priority, so even if the control key representing the start of the multimedia processing mode is accidentally touched in the computer operation mode, the multimedia processing mode will not be entered; , if the control key representing starting the computer operation mode is triggered, it will be forced to enter the computer operation mode.

In this embodiment, the display control unit 14 is used to scale the input into an appropriate size to provide an external display device 31; the power amplifier 15 is electrically connected to the computer processing unit 11 and the multimedia processing unit 12, and is used to amplify the input audio signal of the video signal to give The external audio playback device 32 outputs.

For convenience of description, the reading device 2 of the present embodiment is illustrated by taking the optical drive 22 and the storage device 23 as examples, wherein, the storage medium 5 read by the card reading device 21 is a memory card 51, and the storage medium 5 read by the optical drive 22 is The storage medium 5 is a laser video disc 52, and the storage device 23 is a general hard disk drive (Harddisk). However, as I know, the reading device 2 and the storage medium 5 also have combinations such as a USB transmission interface and a flash drive. Variations therefore also apply within the scope covered by the inventive concept.

When the computer system 100 with audio-visual multimedia automatic playing function of the present invention is turned on, the computer processing unit 11 promptly enters the computer operation mode, and outputs the host signal; the multimedia processing unit 12 can be set to the multimedia processing mode when the computer system 100 is not turned on. In this mode, the unformatted audio/video signal of the video/audio input device 33 can be processed to make the input signal a multimedia signal conforming to the playing format. In addition, the multimedia processing unit 12 has an encoder 121 inside, and the encoder 121 is used for analog/digital conversion of the unformatted audio/video signal to convert the input signal into a digital format multimedia signal.

When the computer system 100 is not turned on, and the multimedia processing unit 12 detects that the video/audio input device 33 provides an unformatted video signal input, the switching circuit 134 can switch to the multimedia processing mode to provide the display of the external display device 31 function. If the user chooses to store, the input audio-visual signal can be stored in the storage device 23 of the computer system 100 .

Similarly, when the computer system 100 is not turned on, the multimedia processing unit 12 can judge whether there is a storage medium 5 in the reading device 2, and when the existence of the storage medium 5 is detected, it will enter the multimedia processing mode to play the self-storage Video and audio signals loaded by media 5.

The switching circuits 131-134 are electrically connected to the computer processing unit 11 and the multimedia processing unit 12 respectively, and are mainly composed of an integrated circuit or a plurality of MOSFET circuits, and are used to receive the selection signal 101 to set the above-mentioned computer operation mode and multimedia processing. mode, as for the source of the selection signal 101, the user sets the selection signal 101 by pressing a button (not shown) outside the computer system 100 or operating a remote controller, and at the same time, the OSD (On Screen Display ; direct screen display) form is processed by the display control unit 14 and presents function options on the display device 31, so as to facilitate the switch setting of the selection signal 101.

In this embodiment, when the computer system 100 is turned on, it enters the computer operation mode, and at the same time, the selection function of the switching circuits 131-134 is set, so that the path from X1 to Y of each switching circuit 131-134 is turned on, so all The commands are all controlled by the computer processing unit 11; and when the computer system 100 is not turned on, the multimedia processing mode is entered by pressing a button or operating a remote controller, and the selection functions of the switching circuits 131-134 can be set at the same time, so that each switching circuit 131-134 The path from X2 to Y of 134 is conductive, so the multimedia processing unit 12 can process and play video and audio signals when the device is not turned on.

Among them, the switching circuits 131-133 are respectively electrically connected to the storage device 23, the optical drive 22 and the card reading device 21, so that data can be read regardless of whether the device is turned on or off; as for the switching circuit 134, it is electrically connected to the display control The unit 14 is used to select one of the host signal and the multimedia signal as an input, and the display control unit 14 scales the input signal into an appropriate size to provide to the external display device 31 .

Cooperate shown in Fig. 1, 2, illustrate the preferred embodiment of the audio-visual multimedia processing method of computer system of the present invention, this method comprises the following steps:

Firstly, the computer system 100 activates the multimedia processing mode by pressing a button or operating the remote control (step 201), and then, it is determined whether the computer system 100 is activated or not? (Step 202) When judging that the computer system 100 is in the power-on state, then enter the general computer operation mode (step 203); The audio-visual signal input (step 204)? And detect whether there is a storage medium 5 in the reading device 2? (Step 205) Hereby, two kinds of detection processing modes of steps 204 and 205 are described as follows:

Situation 1: When detecting the existence of the storage medium 5 (step 205), the computer system 100 can automatically distinguish the state of a single or multiple reading devices 2, if it is detected that a single reading device 2 has the storage medium 5 (step 208 ), such as detecting that there is a memory card 51 in the card reading device 21, then the multimedia processing unit 12 can be automatically entered into the multimedia processing mode to play the video and audio signals loaded from the memory card 51 (step 211).

If the computer system 100 has multiple sets of reading devices 2, then detect whether there is a storage medium 5 for loading data in each reading device 2, such as detecting that there is a memory card 51 in the card reading device 21, and detecting that the optical drive 22 There is a laser video disc 52, if it is detected that such multiple groups of reading devices 2 all have storage media 5 (step 207), the state of each storage medium 5 detected will be displayed on the display device 31, so as to provide the user with a choice One of the storage media 5 is used as the audio-visual playback source (step 209); if what is selected is the laser video disc 52, then the multimedia processing unit 12 can be made to enter the multimedia processing mode to automatically play the audio-visual signal loaded from the laser video disc 52 (step 211) ).

Situation 2: Assuming that there is an unformatted audio-visual signal input (step 204) from the video/audio input device 33, if the audio-visual signal is directly played (step 206), the multimedia processing unit 12 can be made to enter the multimedia processing mode to automatically Play the loaded audio-visual signal (step 211); then, determine whether to store to the storage device 23 of the computer system 100 (step 210), if determined, then perform analog/digital processing on the audio-visual signal by the encoder 121 of the multimedia processing unit 12 conversion (step 212), the input audio-visual signal can be stored in the storage device 23 (step 210).

To sum up the above, the computer system 100 and the audio-visual multimedia processing method with audio-visual multimedia automatic playing function of the present invention have the following advantages:

1. There is no need to wait for the computer to be turned on, the operating system to be loaded, and the multimedia player program to be executed as in the past. The present invention can not only automatically detect whether a single or multiple sets of reading devices 2 have storage media when the computer is not turned on. 5 is available for use, and can automatically open and play multimedia files, which can save users a lot of time.

2. Generally, for downloading files of video/audio input devices 33 such as microphones or digital cameras, it is still necessary to wait for the computer system 100 to start and execute cumbersome procedures such as downloading programs. The present invention can automatically detect video files without starting the computer. The unformatted signal of the /audio input device 33 can not only be converted into digital format data by analog/digital conversion, and store the data in the storage device 23 of the computer system 100, but also can choose to play the signal automatically, providing users with more Time-saving, easy-to-operate interface.

But what is described above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention with this, that is, all simple equivalent changes and modifications made according to the claims of the present invention and the content of the description of the invention, All still belong to the scope covered by the claims of the present invention.

Claims (11)

1. A video and audio multimedia processing method of a computer system, the computer system is to cooperate with the unformatted audio and video signal input provided by the video/audio input device, the method comprises the following steps: (A) start the multimedia processing mode; (B) judging whether the computer system is not powered on, and if it is not powered on, then detecting whether the unformatted audio-visual signal is input; and (C) When an unformatted audio-video signal is detected, the multimedia processing unit can execute various processing functions for the audio-video signal in the multimedia processing mode. 2. The audio-visual multimedia processing method of the computer system according to claim 1, wherein the processing function for the audio-visual signal is to automatically play the audio-visual signal loaded from the video/audio input device. 3. the audio-visual multimedia processing method of computer system according to claim 1, wherein, can carry out the processing function for this audio-visual signal, is to comprise the following steps: (D) When an unformatted audio-visual signal input is detected, ask whether to store it in the storage device of the computer system; and (E) If it is determined to be stored in the storage device of the computer system, the input audio-visual signal is stored in the storage device of the computer system. 4. the audio-visual multimedia processing method of computer system according to claim 3, also comprises following sub-step in step (E): (E-1) Perform analog/digital conversion on the video signal. 5. A computer system with an audio-visual multimedia automatic playback function, which provides unformatted audio-visual signal input in conjunction with a video/audio input device. The computer system includes: A computer processing unit, when the computer system is turned on, it is in a computer operation mode and outputs a host signal; A multimedia processing unit, which can be set to a multimedia processing mode when the computer system is not turned on, and is used to process the unformatted audio-visual signal input into a multimedia signal that conforms to the playback format; a switching circuit, electrically connected to the computer processing unit and the multimedia processing unit, for switching the computer operation mode and the multimedia processing mode; and The display control unit is electrically connected to the computer processing unit and the multimedia processing unit, receives the host signal and the multimedia signal, selects one as an input, and scales the input to an appropriate size to provide an external display function; When the computer system is not turned on and the multimedia processing unit is set, the switching circuit is switched to the multimedia processing mode, and in the multimedia processing mode, the multimedia processing unit can detect the video/audio input device The unformatted video signal input is provided to perform various processing functions on the video signal. 6. The computer system with audio-visual multimedia automatic playing function according to claim 5, further comprising a reading device, the reading device is used to load the audio-visual signal of the storage medium, and the switching circuit is also electrically connected to the reading device , when the computer system is not turned on, the multimedia processing unit judges whether there is the storage medium in the reading device, and enters the multimedia processing mode to play from the storage medium when the storage medium is detected. Video and audio signals loaded by the media. 7. The computer system with audio-visual multimedia automatic playing function according to claim 6, wherein the reading device is a card reading device, and the storage medium is a memory card. 8. The computer system with audio-visual multimedia automatic playing function according to claim 6, wherein the reading device is an optical drive, and the storage medium is a laser disc. 9. The computer system with audio-visual multimedia automatic playing function according to claim 5, further comprising a storage device, the switching circuit is also electrically connected to the storage device, and when the computer system is not turned on, the multimedia processing unit can Detect unformatted audio-visual signal input, if you choose to save, the input audio-visual signal can be stored in the storage device of the computer system. 10. The computer system with audio-visual multimedia automatic playing function according to claim 5, wherein the multimedia processing unit has an encoder, and the encoder is used for analog/digital conversion of the unformatted audio-visual signal input into a digital format multimedia signals. 11. The computer system with audio-visual multimedia automatic playing function according to claim 5, further comprising a power amplifier, the power amplifier is electrically connected to the computer processing unit and the multimedia processing unit, and is used to amplify the audio signal input by the audio-visual signal to External audio playback device output.

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