CN113891149A - Display device, method, system and storage medium for realizing external sound function - Google Patents
Display device, method, system and storage medium for realizing external sound function Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
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Abstract
The invention discloses display equipment, a method, a system and a storage medium for realizing an external sound function. The display equipment comprises a processor, a main audio input module, an external audio input module, an audio switching module and a sound box; the processor is connected with the audio switching module and used for receiving an external starting instruction and starting the audio switching module; the main audio input module is used for inputting audio signals in the television; the external audio input module is used for inputting audio signals of external wireless audio input equipment; the audio switching module is respectively connected with the main audio input module, the external audio input module and the sound box and used for receiving an instruction of the processor to connect the main audio input module with the sound box or connect the external audio input module with the sound box. The problem of among the prior art TV at the broadcast state, can not regard as the bluetooth speaker to use its own stereo set is solved.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to display equipment, a method, a system and a storage medium for realizing an external sound function.
Background
With the popularization of smart televisions, the functions of the televisions are more and more complex, and the televisions inherently have complete hardware systems which can realize the interconnection and interaction functions with devices such as mobile phones, mobile devices and other household appliances. Because the television is provided with the whole set of sound system, the sound equipment on the existing television can only be used by the television, and cannot be interconnected with external wireless audio input equipment such as a mobile phone, for example, wireless communication is carried out through functions such as Bluetooth and WIFI. Therefore, the television can not use the sound of the television as a Bluetooth sound box in a starting or standby state, so that the television and other intelligent products can not interact, the sound function is single, and the user experience is reduced.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a display device, a method, a system and a storage medium for implementing an external audio function. The problem of TV among the prior art start or standby state, can not regard as bluetooth speaker to use its own stereo set, lead to TV and other intelligent products can not carry out interdynamic, stereo set function singleness, reduced user experience is solved.
The technical scheme of the invention is as follows:
a method for realizing external sound function is used for playing audio played by external wireless audio input equipment by using internal sound of the display equipment after the display equipment is connected to the external wireless audio input equipment; the method comprises the following steps:
detecting the opening of the external sound function;
detecting that the television is in a playing state;
controlling an audio switching module to cut off an audio signal input into the sound box by the main volume of the television and inputting the audio signal input by external wireless audio input equipment into the sound box;
and connecting an external wireless audio input device.
Further, the step of detecting the opening of the external sound function further comprises the following steps:
detecting that the television is not in a playing state;
detecting that the television is in a shallow standby state;
and controlling the audio switching module to input the audio signal input by the external wireless audio input equipment into the sound box.
Further, the step of detecting that the television is not in the playing state comprises the following steps:
detecting that the television is in a deep standby state, and then disconnecting the power supply of the sound equipment;
the step of detecting that the television is in the playing state further comprises the following steps of:
and if the external sound function is not started, the power supply of the sound is cut off.
Based on the same inventive concept, the invention also provides a system for realizing the external sound function, wherein the system comprises an external sound function starting module, a sound control module and a sound control module, wherein the external sound function starting module is used for starting the external sound function after receiving the instruction;
the external wireless audio input device connecting module is used for connecting external wireless audio input devices;
the television playing state detection module is used for detecting that the television is in a playing state; and
and the audio switching instruction module is used for controlling the audio switching module to cut off the audio signal input into the sound box by the main volume of the television and inputting the audio signal input by the external wireless audio input equipment into the sound box.
Based on the same inventive concept, the invention also provides a display device for realizing the function of the external sound equipment, which is used for playing the audio played by the external wireless audio input device by using the internal sound equipment of the display device after the display device is connected to the external wireless audio input device, wherein the display device comprises a processor, a main audio input module, an external audio input module, an audio switching module and the sound equipment;
the processor is connected with the audio switching module;
the main audio input module is used for inputting audio signals in the television; the external audio input module is used for inputting audio signals of external wireless audio input equipment;
the audio switching module is respectively connected with the main audio input module, the external audio input module and the sound box and used for receiving an instruction of the processor to connect the main audio input module with the sound box or connect the external audio input module with the sound box.
Further, the audio frequency switches the module and includes:
the two input ends of the logic switch chip are connected with the main audio input module, the other two input ends of the logic switch chip are connected with the external audio input module, the two output ends of the logic switch chip are connected with the sound box, and the control end of the logic switch chip is connected with the processor.
Further, the audio switching module comprises four switching circuits, the four switching circuits are grouped into a first switching group and a second switching group, and the switching circuits comprise field effect transistors;
wherein the input ends of the two field effect transistors in the first switching group are coupled with the main audio input module, the output ends of the two field effect transistors in the first switching group are coupled with the sound equipment, and the control ends of the two field effect transistors in the first switching group are coupled with the processor;
the input ends of the two field effect transistors in the second switching group are coupled with the external audio input module, the output ends of the two field effect transistors in the second switching group are coupled with the sound equipment, and the control ends of the two field effect transistors in the second switching group are coupled with the processor.
Further, the switching circuit further comprises a first capacitor and a second capacitor, wherein the first capacitor is connected between the main audio input module or the external audio input module and the field effect transistor;
the second capacitor is connected between the field effect transistor and the sound box.
Further, the switching circuit further includes:
the first resistor is connected between the first capacitor and the field effect transistor;
one pole of the second resistor is connected between the first resistor and the field effect transistor, and the other pole of the second resistor is grounded;
and one pole of the third resistor is connected to the control end of the field effect transistor, and the other pole of the third resistor is connected to +12V voltage.
Based on the same inventive concept, the present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores one or more programs, which are executable by one or more processors to implement the steps of the method for implementing an external sound function as described above.
Has the advantages that: compared with the prior art, the display equipment, the method, the system and the storage medium for realizing the external sound function are provided by the invention. The television is started by detecting the function of the external sound equipment, then is connected with the external wireless audio input equipment, and then detects the state of the television, and when the television is detected to be in a playing state, a control instruction is sent out, the audio switching module is controlled to cut off the audio signal input into the sound equipment by the main volume of the television, and the audio signal input into the sound equipment by the external wireless audio input equipment is input into the sound equipment. Therefore, the sound box of the television is used as a Bluetooth sound box when the television is in a starting or standby state, the external wireless audio input device is wirelessly connected with the television, the wireless audio input device can send an audio signal to be played to the television, and the sound box of the television plays the audio of the wireless audio input device after cutting off the main audio in a playing state. Therefore, the interaction between the television and other intelligent products is improved, the selling points of the television are increased, the playability is improved, and the user experience is greatly improved.
Drawings
FIG. 1 is a flowchart of a main method of an embodiment of a method for implementing an external audio function according to the present invention;
FIG. 2 is a flowchart of an optimization method of an embodiment of a method for implementing an external audio function according to the present invention;
FIG. 3 is a schematic block diagram of the structure of a television of the present invention;
FIG. 4 is a schematic circuit diagram of an audio switch module according to an embodiment of a television;
fig. 5 is a schematic circuit diagram of another structure of an audio switching module according to an embodiment of a television.
The reference numbers in the figures: 10. a processor; 20. a main audio input module; 30. an external audio input module; 40. an audio switching module; 41. a logic switch chip; 42. a switching circuit; 43. a field effect transistor; 44. a first capacitor; 45. a second capacitor; 46. a first resistor; 47. a second resistor; 48. a third resistor; 50. sounding; 60. an external wireless audio input device.
Detailed Description
The invention provides a display device, a method, a system and a storage medium for realizing the function of an external sound box, and in order to make the purpose, the technical scheme and the effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and taking examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
As shown in fig. 1, this embodiment proposes a method for implementing an external audio function, which is specifically applied to a television, so that the audio of the television is used as an independent audio to play an audio signal wirelessly input by an external wireless audio input device. Most of the current smart televisions have Bluetooth audio modules. After the method of the embodiment is adopted, the sound equipment can directly share the Bluetooth audio module of the television, the Bluetooth audio module is connected with the external equipment to receive the audio signal, the received Bluetooth audio signal is converted into an analog or digital audio signal through the SOC or the Bluetooth audio module, and the sound equipment of the television outputs sound.
This function can be used in a television play state or in a shallow standby state. The television playing state refers to the state that the television normally plays pictures and sound and other television functions are normally started. The shallow standby state of the television refers to a sleep state of the television, in which the television screen does not display a picture, and the processor is still in a working state except that the backlight is turned off, so that the processing capacity is reduced only for saving power. In addition, the television also has a deep standby state, in the deep standby state, the processor turns off most functions, and the television cannot be turned on without a characteristic key (such as a remote switch). The method for realizing the external sound function can realize the function of playing the audio frequency of the external wireless audio input equipment in the playing state and the shallow standby state.
An external sound function switch option is arranged in an operation interface (UI) of the television, and when the television is in a playing state, the external sound function switch option is manually opened in the operation interface, so that the external sound function can be started. Or the remote controller is provided with a remote controller function, the remote controller is provided with a key, and the external sound function is turned on or off through the key. The external sound function can be recorded after being started, and the external sound can still be in the starting state when being started next time or in the shallow standby state and the deep standby state.
The external wireless audio input equipment in the scheme can perform wireless transmission with the television through functions such as Bluetooth and WIFI, the wireless Bluetooth function is used for explaining the scheme, and the television can receive external Bluetooth signals through the Bluetooth receiver. Firstly, the external wireless audio input device is connected with the television through the Bluetooth function, so that data transmission can be carried out between the external wireless audio input device and the television. And then the audio of the external wireless audio input equipment is played through the sound of the television by adopting the method.
The method for realizing the external sound function mainly comprises the following steps:
and S100, detecting the starting of the external sound function.
In the specific process, usually, an external wireless audio input device requests to perform wireless communication with a television, and a processor of the television detects whether an external sound function is started or not after receiving an external Bluetooth request signal. And if the external sound function is in the starting state, the next step is carried out.
And step S200, detecting that the television is in a playing state.
In the specific process, the processor detects whether the television is in a playing state, the state that the television normally plays the video is the playing state, and if the television is in the playing state, the next step is carried out.
And step S300, controlling the audio switching module to cut off the audio signal input into the sound box by the main volume of the television, and inputting the audio signal input by the external wireless audio input equipment into the sound box.
In the specific process, the processor sends a control instruction to the audio switching module, so that the audio switching module is controlled to cut off audio signals input into the sound box from the main volume of the television, and the audio signals input from the outside and received by the Bluetooth module are transmitted to the sound box. The audio input of the power amplifier of the television system is switched to the audio input of the Bluetooth module, and the audio signal of the external equipment is played through the Bluetooth module, so that the function of the Bluetooth sound box is realized.
The processor inputs the audio data of the external wireless audio input equipment into the sound box through the Bluetooth module after detecting that the function of the external sound box is started and the switching is completed, so that the playing is realized.
In the scheme, the sound box is used as the Bluetooth sound box when the television is in a starting or standby state, the external wireless audio input device is wirelessly connected with the television, the wireless audio input device can send an audio signal to be played to the television, and the sound box of the television plays the audio of the wireless audio input device after cutting off the main audio in a playing state. Therefore, the interaction between the television and other intelligent products is improved, the selling points of the television are increased, the playability is improved, and the user experience is greatly improved.
As shown in fig. 2, in the specific steps, the method for implementing the external audio function specifically includes the steps of: and after the Bluetooth module is opened, the external wireless audio input equipment is connected with the television, so that the external wireless audio input equipment can communicate with the Bluetooth module of the television. The following steps are then performed:
and step S10, detecting whether the external sound function is started.
When detecting that the external sound function is started, connecting an external wireless audio input device, and executing the step S20;
and when the external sound box function is not started, the power supply of the sound box is cut off.
And step S20, detecting whether the television is in a playing state.
When it is detected that the television is in the playing state, step S21 is performed.
When it is detected that the television is not in the playing state, step S30 is executed.
Step S21 is to cut off the audio signal input to the audio by the television master.
In step S22, the audio signal input by the external wireless audio input device is input to the audio device.
And step S23, turning on the Bluetooth audio module to supply power and turning on the sound box to supply power.
And step S30, detecting whether the television is in a deep standby state.
When the television is detected to be in a deep standby state, the power supply of the sound box is cut off.
When it is detected that the television is not in the deep standby state, i.e., the television is in the shallow standby state, steps S22 and S23 are performed.
In the above process, after the steps S22 and S23 are executed, the playing data is transmitted to the television, the power is supplied to the stereo, and the stereo is turned on for playing. The television can realize the connection between the external wireless audio input equipment and the sound equipment in a shallow standby state, and the screen of the television is closed, so that only the sound equipment of the television is used. This makes the television more energy efficient when it is a bluetooth sound.
Example two
Based on the same inventive concept, on the basis of the first embodiment, the invention further provides a system for realizing the external sound function, wherein the system comprises an external sound function starting module, an external wireless audio input device connecting module, a television playing state detection module and an audio switching instruction module. And the external sound function starting module is used for starting the external sound function after receiving the instruction. The external wireless audio input device connecting module is used for connecting external wireless audio input devices; the television playing state detection module is used for detecting that the television is in a playing state. The audio switching instruction module is used for controlling the audio switching module to cut off audio signals input into the sound box by the main volume of the television, and inputting the audio signals input by the external wireless audio input equipment into the sound box.
The external sound equipment function starting module receives the starting instruction and starts, the external wireless audio input equipment connecting module is in wireless connection with the external audio input equipment, the television playing state detection module detects that the television is in a playing state, the audio instruction switching module cuts off local signals, and the sound equipment is used as a Bluetooth sound box to be connected with the external wireless audio input equipment, and the sound equipment of the television plays audio of the wireless audio input equipment.
EXAMPLE III
As shown in fig. 3, based on the second embodiment, based on the same inventive concept, the present invention further provides a display device for implementing an external audio function, for implementing the method in the first embodiment, wherein the display device includes a processor 10, a main audio input module 20, an external audio input module 30, an audio switching module 40, and an audio 50. The processor 10 is connected to the audio switching module 40, and is configured to receive a start instruction and start the audio switching module 40. The main audio input module 20 is used for inputting audio signals in the television. The external audio input module 30 is used for inputting audio signals of the external wireless audio input device 60. In this embodiment, the external audio input module 30 is a bluetooth module. The audio switching module 40 is respectively connected to the main audio input module 20, the external audio input module 30 and the audio 50, and is configured to receive an instruction from the processor 10 to connect the main audio input module 20 with the audio 50 or connect the external audio input module 30 with the audio 50.
In the specific structure, if the processor (main chip) of the television has the function of decoding the bluetooth audio signal, that is, the processor is provided with a bluetooth audio module, the audio signal received by the external audio input module 30 can be directly converted into the audio input signal recognizable by the sound 50 and output to the television sound 50; if the main chip does not have the function, a Bluetooth audio conversion module needs to be added to convert the Bluetooth audio conversion module into an audio input signal with a recognizable function, and the current market Bluetooth sound box scheme can be realized.
If the Bluetooth sound box is externally hung and added, the Bluetooth audio module is arranged in the Bluetooth sound box, a power supply change-over switch is required to be added, the Bluetooth audio module can be switched on and off by using an MOS (metal oxide semiconductor) switch, and the switch is controlled by a main chip through I/O (input/output) so as to realize the switching on and off of the Bluetooth audio module.
As shown in fig. 3, the above is a setting form of two bluetooth speakers of a television. Wherein the external audio input module 30 is a part of a bluetooth audio module. After the bluetooth audio module is powered on, the external audio input module 30 can work.
As shown in fig. 4 and 5, to implement the switching function, an audio switching module 40 is added at the input end of the audio 50 to implement switching between the main audio of the television system and the external bluetooth audio. The audio switching module 40 in this embodiment has two forms, one of which includes:
as shown in fig. 4, the logic switch chip 41, the logic switch core in this embodiment, is CD4051, CD4052, CD4053, or the like. Fig. X is a circuit diagram of CD4052, which is a 4-input 2-select switch. Two input ends of the logic switch chip 41 are connected to the main audio input module 20, and the other two input ends are connected to the external audio input module 30, so that the two input ends are divided into two groups, two input ends in each group are respectively connected to the outputs of the left channel and the right channel, and two output ends of the logic switch chip 41 are connected to the sound box 50, so that when the two input ends are switched to one group of input ends, the two output ends respectively output the left channel and the right channel to the sound box 50, thereby realizing the switching of audio. The control end of the logic switch chip 41 is connected to the processor 10, and the main audio input module 20 can be controlled to be connected to the audio 50 or the external audio input module 30 can be controlled to be connected to the audio 50 by the control of the processor 10.
As shown in fig. 5, in order to save cost, it may be implemented that the audio switching module 40 includes four switching circuits 42 by designing the switching circuits 42, the four switching circuits 42 have the same structure, the four switching circuits 42 are grouped into a first switching group and a second switching group, and the switching circuit 42 includes a field effect transistor 43. Wherein the input terminals of two of the fets 43 in the first switching set are coupled to the main audio input module 20, the output terminals are coupled to the speaker 50, and the control terminal is coupled to the processor 10. The input terminals of two fets 43 in the second switching set are coupled to the external audio input module 30, the output terminals are coupled to the speaker 50, and the control terminal is coupled to the processor 10. Wherein the two circuits respectively provided in the first switching group and the second switching group are respectively connected to the sound box 50 as a left channel and a right channel, and the fet 43 functions as a switch. By controlling the fets 43 of the two switching circuits 42 in the first switching group, the main audio input module 20 is connected to the audio 50, and the audio 50 can play the sound of the tv system. By controlling the fets 43 of the two switching circuits 42 in the second switching group, the external audio input module 30 is connected to the audio 50, and the audio 50 can play the sound of the external wireless audio device.
Since the structure of each switching circuit 42 is the same. A specific configuration will be described with reference to one switching circuit 42. The switching circuit 42 further includes a first capacitor 44 and a second capacitor 45, and the first capacitor 44 is connected between the main audio input module 20 or the external audio input module 30 and the fet 43. The second capacitor 45 is connected between the fet 43 and the speaker 50. Specifically, a first pole of the first capacitor 44 is connected to the main audio input module 20 or the external audio input module 30, and the other pole is coupled to the first pole of the fet 43. The first pole of the second capacitor 45 is connected to the second pole of the fet 43, and the other pole is connected to the speaker 50. Through first electric capacity 44 and second electric capacity 45, can prevent that the direct current in the circuit from influencing field effect transistor 43 and stereo set 50, improve system stability, the broadcast effect is better.
In addition, in order to make the switching circuit 42 more stable, the switching circuit 42 further includes: a first resistor 46, a second resistor 47, and a third resistor 48. The first resistor 46 is connected between the first capacitor 44 and the fet 43, i.e. the second pole of the first capacitor 44 is connected to the first pole of the first resistor 46, and the second pole of the first resistor 46 is connected to the first pole of the fet 43. One pole of the second resistor 47 is connected between the first resistor 46 and the fet 43, and the other pole is grounded. One electrode of the third resistor 48 is connected to the control end of the fet 43, and the other end is connected to + 12V. The signal is divided by the first resistor 46, the second resistor 47 and the third resistor 48, so that the switching circuit 42 is more stable.
Example four
On the basis of the first embodiment, the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the steps of the method for implementing an external sound function as described above.
In summary, the present invention provides a display device, a method, a system and a storage medium for implementing an external audio function. The television is started by detecting the function of the external sound equipment, then is connected with the external wireless audio input equipment, and then detects the state of the television, and when the television is detected to be in a playing state, a control instruction is sent out, the audio switching module is controlled to cut off the audio signal input into the sound equipment by the main volume of the television, and the audio signal input into the sound equipment by the external wireless audio input equipment is input into the sound equipment. Therefore, the sound box of the television is used as a Bluetooth sound box when the television is in a starting or standby state, the external wireless audio input device is wirelessly connected with the television, the wireless audio input device can send an audio signal to be played to the television, and the sound box of the television plays the audio of the wireless audio input device after cutting off the main audio in a playing state. Therefore, the interaction between the television and other intelligent products is improved, the selling points of the television are increased, the playability is improved, and the user experience is greatly improved.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A display device for realizing the function of an external sound box is characterized by comprising a processor, a main audio input module, an external audio input module, an audio switching module and a sound box;
the processor is connected with the audio switching module;
the main audio input module is used for inputting audio signals in the television; the external audio input module is used for inputting audio signals of the external wireless audio input equipment;
the audio switching module is respectively connected with the main audio input module, the external audio input module and the sound box and used for receiving an instruction of the processor to connect the main audio input module with the sound box or connect the external audio input module with the sound box.
2. The display device for realizing external audio function according to claim 1, wherein the audio switching module comprises:
the two input ends of the logic switch chip are connected with the main audio input module, the other two input ends of the logic switch chip are connected with the external audio input module, the two output ends of the logic switch chip are connected with the sound box, and the control end of the logic switch chip is connected with the processor.
3. The display device for realizing the external audio function according to claim 1, wherein the audio switching module comprises four switching circuits, the four switching circuits are grouped into a first switching group and a second switching group, and the switching circuits comprise field effect transistors;
wherein the input ends of the two field effect transistors in the first switching group are coupled with the main audio input module, the output ends of the two field effect transistors in the first switching group are coupled with the sound equipment, and the control ends of the two field effect transistors in the first switching group are coupled with the processor;
the input ends of the two field effect transistors in the second switching group are coupled with the external audio input module, the output ends of the two field effect transistors in the second switching group are coupled with the sound equipment, and the control ends of the two field effect transistors in the second switching group are coupled with the processor.
4. The display device with the external audio function according to claim 3, wherein the switching circuit further comprises a first capacitor and a second capacitor, and the first capacitor is connected between the main audio input module or the external audio input module and the field effect transistor;
the second capacitor is connected between the field effect transistor and the sound box.
5. The display device for realizing external audio function according to claim 4, wherein the switching circuit further comprises:
the first resistor is connected between the first capacitor and the field effect transistor;
one pole of the second resistor is connected between the first resistor and the field effect transistor, and the other pole of the second resistor is grounded;
and one pole of the third resistor is connected to the control end of the field effect transistor, and the other pole of the third resistor is connected to +12V voltage.
6. A method for implementing an external audio function, which is applied to the display device for implementing an external audio function according to any one of claims 1 to 5, and which comprises the steps of:
detecting the opening of the external sound function;
detecting that the television is in a playing state;
and the audio switching control module cuts off the audio signal input into the sound by the main volume of the television and inputs the audio signal input by the external wireless audio input equipment into the sound.
7. The method for implementing an external audio function according to claim 6, wherein the step of detecting the turning on of the external audio function is followed by the steps of:
detecting that the television is not in a playing state;
detecting that the television is in a shallow standby state;
and controlling the audio switching module to input the audio signal input by the external wireless audio input equipment into the sound box.
8. The method for implementing an audio add-on function according to claim 7, wherein the step of detecting that the tv is not in a playing state comprises the following steps:
detecting that the television is in a deep standby state, and then disconnecting the power supply of the sound equipment;
the step of detecting that the television is in the playing state comprises the following steps:
and if the external sound function is not started, the power supply of the sound is cut off.
9. A system for realizing the function of an external sound box is characterized by comprising an external sound box function starting module, a sound box control module and a sound box control module, wherein the external sound box function starting module is used for starting the external sound box function after receiving an instruction;
the television playing state detection module is used for detecting whether the television is in a playing state; and
and the audio switching instruction module is used for controlling the audio switching module to cut off the audio signal input into the sound box by the main volume of the television and inputting the audio signal input by the external wireless audio input equipment into the sound box.
10. A computer-readable storage medium, storing one or more programs, which are executable by one or more processors to implement the steps of the method for implementing an external sound function according to any one of claims 6 to 8.
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| US20140037104A1 (en) * | 2012-08-03 | 2014-02-06 | Samsung Electronics Co., Ltd. | Display apparatus, display system, and control method thereof |
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