[0026] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
[0027] like figure 1 As shown, the present invention discloses a method for automatically switching audio equipment, which includes the following steps:
[0028] Step 1, the monitor detects whether the external audio device has changed; if yes, disconnect the HPD and the computer system interrupts the signal input to the monitor and then execute step 2; otherwise, execute step 1;
[0029] Step 2, the display judges whether to access the external audio equipment; Yes, the display switches the current memory of the EDID reading channel to the first EDID memory that preserves the first EDID data and executes step 3, and the first EDID data includes video information and audio information Otherwise, the display switches the current memory of the EDID reading channel to the second EDID memory that saves the second EDID data and executes step 3, and the second EDID data only includes video information;
[0030] Step 3, the monitor re-opens the HPD, and the computer system captures the corresponding EDID data in the current memory after recognizing the HPD signal;
[0031] Step 4, the computer-end system judges whether the acquired EDID data includes audio information; if so, the computer-end system simultaneously transmits the video signal and the audio signal to the display and executes step 5; otherwise, the computer-end system only transmits the video signal to the monitor and executes the steps 6;
[0032] Step 5, the display plays the audio signal through an external audio device while displaying the video signal and performs step 1;
[0033] Step 6, while the monitor displays the video signal, the audio signal is played on the computer and step 1 is performed.
[0034] like figure 2 As shown, a device for automatically switching audio equipment, which includes a display and a computer terminal, the display includes a Scaler chip and a first EDID memory, a second EDID memory, a FLASH memory, a signal interface and an external audio interface connected to the Scaler chip; The external audio interface can be detachably connected to external audio equipment; the display is connected to the computer through the signal interface;
[0035] The first EDID memory stores the first EDID data, and the first EDID data includes video information and audio information; the second EDID memory stores the second EDID data, and the second EDID data only includes video information; The reading channel reads the corresponding EDID data; the FLASH memory saves the current EDID data obtained by the EDID reading channel for the computer system to call; the computer outputs the video information to the display, and outputs or does not output according to the content of the current EDID data Audio information to the display.
[0036] Further, the external audio interface of the display has an HPD function.
[0037] Further, it includes an EDID switching circuit, and the Scaler chip is respectively connected to the first EDID memory and the second EDID memory through the EDID switching circuit, so as to select to connect the first EDID memory or the second EDID memory according to whether an external audio device is connected.
[0038] Further, when the current EDID data is the first EDID data, the computer terminal system simultaneously transmits the video signal and the audio signal to the display, and the display plays the audio through an external audio device while displaying the video signal.
[0039] Further, when the current EDID data is the second EDID data, the computer terminal system only transmits the video signal to the display; the display displays the video signal, and the computer terminal plays the audio signal.
[0040] The differences between the present invention and the prior art are as follows: 1. EDID: the prior art display has only one EDID and contains audio information. After modification, there are two EDIDs in the display of the present invention, one contains audio information and the other does not contain audio information. 2. Computer system operation interface: The default audio playback device of the prior art system is the display. If the user wants to change the playback device, it needs to be selected manually. In the present invention, if the display is connected to an external audio playback device, the system defaults to the display for audio playback; if the display is not connected to an external audio playback device, the system defaults to a computer speaker to play audio. 3. Circuit: There is only one EDID in the previous technical solution, which is stored in the EEPROM. After the modification, the scheme of the present invention has two EDIDs, which are stored in EEPROM and Flash respectively, and an EDID switching control loop is added.
[0041]The present invention adopts the above technical solutions, and the computer system can automatically identify whether the display has an external playback device and determine whether the audio is played by the computer or by the display without requiring the user to manually switch the playback device. The present invention can automatically perform audio switching between the computer and the display, without the need for the user to manually select the audio playback device, the audio playback is more intelligent, the convenience of the audio playback operation is greatly improved, the customer experience is improved, the customer complaint is reduced, and the customer satisfaction is improved. .
[0042] Obviously, the described embodiments are some, but not all, embodiments of the present application. The embodiments in this application and the features in the embodiments may be combined with each other without conflict. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the detailed description of the embodiments of the application is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
