CN102982818B - System and method which are capable of achieving player audio return - Google Patents

Abstract

A system and method for implementing player audio return, the system is set in the player, connected to the TV through an HDMI interface, including: a selection module for selecting between a playback mode and an audio playback mode, and Send the selection result to the system main chip; the system main chip is used to receive the user's selection and send a switching signal to the switching module; the switching module is used to receive the switching signal from the system main chip to switch between the playback mode and the audio playback mode , and send the switching result to the execution module; the execution module is used to drive the playback module or the audio playback module to work; the playback module is used to play the audio after receiving the signal from the execution module; the audio playback module is used to receive the signal from the execution module Then play back the audio. Depending on the user's selection, the system can switch between two modes, playback mode and audio return mode. In the audio return mode, the audio signal from the TV can be sent back to the player via HDMI.

Description

A system and method for implementing player audio return

technical field

The present invention relates to a player, in particular to a system and method for realizing the audio return of the player.

Background technique

HDMI (High Definition Multimedia Interface) is a high-definition multimedia interface, a digital video and audio interface technology, a dedicated digital interface suitable for image transmission, which can transmit audio and video signals at the same time. HDMI can be equipped with HDCP (High-bandwidth Digital Content Protection, high-bandwidth digital content protection technology) to prevent unauthorized copying of copyrighted video and audio content.

CEC (Consumer Electronics Control, Consumer Electronics Control) is a control protocol of HDMI, which enables devices connected to the HDMI line to discover each other and generate and receive instructions. In this way, mutual control between devices is realized.

ARC (Audio Return Channel, Audio Return Channel) is a new function defined on version 1.4 of HDMI, which enables the TV to return audio to the previous HDMI device, and the HDMI device returns the audio to the TV. After processing, it is output through other speakers.

However, HDMI divides devices into Recording Device (recording device), Tuner (tuner), Playback Device (playback device), Audio System (sound system), etc. The only device that supports ARC function is Audio System. With the development of science and technology, various players (such as Blu-ray players) have more and more powerful functions, and their audio processing capabilities are also more powerful and rich, such as converting audio formats, recording to storage devices, and transferring to Internet and more.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a system and method for realizing the audio return of the player, which can return the audio of the TV to the player through HDMI, which can enrich the application of the player, and can also provide Provide consumers with a more convenient operating experience.

In order to achieve the above object, the technical solution adopted by the present invention is, a system for realizing the audio return of the player, which is set in the player and connected to the TV through the HDMI interface, including:

The selection module is used to select between the playback mode and the audio playback mode, and transmits the selection result to the system main chip;

The main chip of the system is used to send a switching signal to the switching module after receiving the user's selection;

The switching module is used to receive the switching signal of the main chip of the system to switch between the playback mode and the audio playback mode, and send the switching result to the execution module;

The execution module is used to drive the playback module or the audio playback module to work;

The playback module is used to play audio after receiving the signal of the execution module;

The audio playback module is used for audio playback after receiving the signal of the execution module.

Preferably, the playback module is connected to the playback channel.

Preferably, the playback module is set in the playback device.

Preferably, the audio playback module is connected to an audio playback channel.

Preferably, the audio playing module is set in the audio equipment.

A method for implementing a player audio return system, comprising the following steps:

Step 1. The user selects between the playback mode and the audio playback mode, and transmits the selection result to the system main chip;

Step 2. After receiving the user's selection, send a switching signal to the switching module;

Step 3. Receive the switching signal of the main chip of the system to switch between the playback mode and the audio playback mode;

Step 4. Drive the playback module or the audio playback module to work. The playback module performs audio playback after receiving the signal from the execution module; otherwise, the audio playback module performs audio playback after receiving the signal from the execution module.

Preferably, the audio playback performed by the playback module after receiving the signal from the execution module specifically includes:

Step 101. Select the playback module and open the playback channel;

Step 102. Determine whether the current player state is in the playing state, if so, execute step 107, and execute step 103;

Step 103. Close the system audio mode, and terminate the audio return channel;

Step 104. Perform audio playback failure broadcast;

Step 105. Obtain the logical address of the playback device;

Step 106. Turn on the playback device;

Step 107. Enter the playback device processing flow.

Preferably, after the audio playback module receives the signal of the execution module, the audio playback specifically includes:

Step 201. Select the audio playback module and open the audio playback channel;

Step 202. Determine whether the current player state is in the audio playback state, if so, execute step 207, and execute step 203;

Step 203. Close the playback mode, and terminate the playback channel;

Step 204. Play invalid broadcast;

Step 205. Obtain the logical address of audio playback;

Step 206. Turn on the audio playback mode;

Step 207. Enter the audio playback processing flow.

Compared with the prior art, the beneficial effect of the present invention is that the audio of the TV can be transmitted back to the player through HDMI, which can enrich the application of the player and provide consumers with more convenient operation experience.

Description of drawings

Fig. 1 is a system block diagram of the present invention;

Fig. 2 is a schematic diagram of menu mode selection of the present invention;

    Fig. 3 is the flow chart of switching playback state of the present invention;

Fig. 4 is a flow chart of switching audio playback channels in the present invention.

detailed description

The HDMI protocol defines and classifies devices, mainly divided into four categories: Recording Device (recording device), Tuner (tuner), Playback Device (playback device), Audio System (audio system), and assigns a unique The Logic Address (logical address). Each type of device has a feature set, and ARC is a functional subset of the audio system Audio System. The main way to implement the ARC function on the player is to enable the player to freely switch between the two logical addresses of the playback device Playback Device and the audio system Audio System Logic Address.

The gist of the present invention is to realize the ARC function on the player by utilizing mature HDMI, CEC and ARC technologies. On the hardware, the common HDMI standard technology is used. In terms of software, the player has two identities of the playback device Playback Device and the audio system Audio System, and realizes the audio playback ARC function as the audio system Audio System.

The following will describe in detail with reference to the accompanying drawings in conjunction with the embodiments, so as to further explain the technical features and advantages of the present invention.

As shown in Figure 1.2, a system for realizing the audio return of the player is set in the player and connected to the TV through the HDMI interface, including:

The selection module is used to select between the playback mode and the audio playback mode, and transmits the selection result to the system main chip;

The main chip of the system is used to send a switching signal to the switching module after receiving the user's selection; the switching module is used to receive the switching signal of the main chip of the system to switch between the playback mode and the audio playback mode, and send the switching result to the execution module ;The execution module is used to drive the playback module or the audio playback module to work; the playback module is used to play the audio after receiving the signal from the execution module; the audio playback module is used to play back the audio after receiving the signal from the execution module, and the audio returns through Connect to the HDMI interface of the TV for return transmission.

Preferably, the playback module is connected to the playback channel. The playing module is set in the playing device. The audio playback module is connected with the audio playback channel. The audio playing module is set in the audio equipment. Each type of device has a feature set, and audio playback ARC is a feature subset of the audio system Audio System.

A method for implementing a player audio return system, comprising the following steps:

Step 1. The user selects between the playback mode and the audio playback mode, and transmits the selection result to the system main chip; as shown in Figure 2, the selection menu is displayed, and the user selects between the playback mode and the audio playback mode according to the menu ;

Step 2. After receiving the user's selection, send a switching signal to the switching module;

Step 3. Receive the switching signal of the main chip of the system to switch between the playback mode and the audio playback mode;

Step 4. Drive the playback module or the audio playback module to work. The playback module performs audio playback after receiving the signal from the execution module; otherwise, the audio playback module performs audio playback after receiving the signal from the execution module.

The flow chart of switching the playback state of the present invention is shown in Figure 3. After the playback module receives the signal of the execution module, the audio playback specifically includes: Step 101. Select the playback module and open the playback channel; Step 102. Judging the current player status Whether it is in the playback state, then execute step 107, execute step 103; step 103. close the system audio mode, and terminate the audio return channel; step 104. carry out audio playback failure broadcast; step 105. obtain the logical address of the playback device; step 106. Turn on the playback device; Step 107. Enter the processing flow of the playback device.

The flow chart of switching the audio playback channel of the present invention is shown in Figure 4. After the audio playback module receives the signal of the execution module, the audio playback specifically includes: Step 201. Select the audio playback module and open the audio playback channel; Step 202. Judgment Whether the current player state is in the audio playback state, then execute step 207, and execute step 203; Step 203. close the playback mode, and terminate the playback channel; step 204. perform playback failure broadcast; step 205. obtain the logical address of the audio playback; Step 206. Turn on the audio playback mode; Step 207. Enter the audio playback processing flow, and the audio signal of the TV is sent back to the player through the HDMI line.

The present invention provides a selection menu, as shown in Fig. 2, so that the user can choose between two functions of Player and ARC. When the playback mode Player option is selected, switch to the logical address of the playback device Playback Device, which realizes the general functions of the player, including playing audio and video files on discs and other storage devices, and outputting audio and video signals to TVs or power amplifiers wait. When the audio playback mode ARC option is selected, switch to the logical address of the audio system Audio System to realize the ARC function of the audio system Audio System, so that the audio signal of the TV can be sent back to the player through the HDMI line.

The above content is a further detailed description of the present invention in combination with specific preferred modes, and it should not be deemed that the specific implementation of the present invention is limited to the above description. For those skilled in the art, without departing from the concept of the present invention, some simple deductions or substitutions can be made, which should be considered within the protection scope determined by the claims submitted in the present invention.

Claims (4)

1. realize a system for player audio passback, be arranged in player, be connected with TV by HDMI, it is characterized in that, comprising:

Selecting module, for selecting between play mode and audio playback mode, and sending selection result to system master chip;

System master chip, after receiving user's selection, sends switching signal to handover module;

Handover module, the switching signal for receiving system master chip switches between play mode and audio playback mode, and switching result is sent to execution module;

Execution module, for driving playing module or audio playback module work;

Playing module, for receive execution module signal after carry out audio frequency broadcasting;

Audio playback module, for receive execution module signal after carry out voice reproducing, audio return is returned by the HDMI be connected with TV;

Described playing module carries out audio frequency broadcasting and specifically comprises after receiving the signal of execution module: step 101. selects playing module, opens broadcasting passage; Step 102. judges whether current player state is in broadcast state, is, performs step 107, otherwise performs step 103; Step 103. shutdown system audio mode, and stop audio return passage; Step 104. carries out voice reproducing inefficacy broadcast; Step 105. obtains the logical address of playback equipment; Step 106. opens playback equipment; Step 107. enters playback equipment treatment scheme;

Described audio playback module is carried out voice reproducing after receiving the signal of execution module and is specifically comprised: step 201. selects audio playback module, opens voice reproducing passage; Step 202. judges whether current player state is in voice reproducing state, is, performs step 207, otherwise performs step 203; Step 203. closes play mode, and stops playing passage; Step 204. carries out broadcasting inefficacy broadcast; Step 205. obtains the logical address of voice reproducing; Step 206. opens audio playback mode; Step 207. enters voice reproducing treatment scheme, and the sound signal of TV returns to player by HDMI wire road.

2. the system realizing player audio passback according to claim 1, is characterized in that: described playing module and broadcasting expanding channels.

3. the system realizing player audio passback according to claim 1, is characterized in that: described audio playback module and voice reproducing expanding channels.

4. the method realizing the system of player audio passback according to any one of claim 1-3, is characterized in that, comprise the following steps:

Step 1. user select between play mode and audio playback mode, and send selection result to system master chip;

Step 2. sends switching signal to handover module after receiving user's selection;

The switching signal of step 3. receiving system master chip switches between play mode and audio playback mode;

Step 4. drives playing module or audio playback module work, and playing module carries out audio frequency broadcasting after receiving the signal of execution module, otherwise audio playback module carries out voice reproducing after receiving the signal of execution module;

Described playing module carries out audio frequency broadcasting and specifically comprises after receiving the signal of execution module:

Step 101. selects playing module, opens broadcasting passage;

Step 102. judges whether current player state is in broadcast state, is, performs step 107, otherwise performs step 103;

Step 103. shutdown system audio mode, and stop audio return passage;

Step 104. carries out voice reproducing inefficacy broadcast;

Step 105. obtains the logical address of playback equipment;

Step 106. opens playback equipment;

Step 107. enters playback equipment treatment scheme;

Described audio playback module is carried out voice reproducing after receiving the signal of execution module and is specifically comprised:

Step 201. selects audio playback module, opens voice reproducing passage;

Step 202. judges whether current player state is in voice reproducing state, is, performs step 207, otherwise performs step 203;

Step 203. closes play mode, and stops playing passage;

Step 204. carries out broadcasting inefficacy broadcast;

Step 205. obtains the logical address of voice reproducing;

Step 206. opens audio playback mode;

Step 207. enters voice reproducing treatment scheme.