TW201448610A - Controlling system and method for speaker - Google Patents

Abstract

A controlling system includes a controller, a storage unit, and an audio interface. The controller determines that the audio interface receives an audio signal. When the audio interface does not receive the audio signal after a predetermined time, the controller enables a power circuit to stop outputting power.

Description

Speaker control system and method

The present invention relates to a speaker control system and method.

Speakers have become a must-have for computer holders, and they are also a tool for the public to enjoy great music and exciting movies. For the conventional active speaker, it is determined by a power switch to determine the working state. The user only needs to press the power switch to make the speaker work. However, users often ignore the power of the speaker and turn off the computer after listening to the perfect song or after watching a wonderful movie (video), which leads to waste of resources.

In view of the above, it is necessary to provide a speaker control system and method with energy saving functions.

A speaker control system comprising:

a detecting unit is configured to set a flag bit for indicating whether the audio signal is connected to the first value, and the detecting unit is further configured to determine whether the audio interface of the speaker has audio signal access, when the audio signal is accessed. The detecting unit sets the value of the flag bit to a second value and outputs a first control signal; when no audio signal is connected, the detecting unit outputs a first trigger signal;

An identification unit, when the identification unit receives the first trigger signal transmitted by the detecting unit, the identifying unit determines whether the duration of the flag bit is greater than a preset time; when the flag bit is When the duration of the first value is greater than the preset time, the identification unit outputs a second control signal; and

a control unit, when receiving the first control signal output by the detecting unit, the control unit controls a power circuit output power; and when receiving the second control signal transmitted by the identifying unit, the control unit controls the power circuit Stop output power.

A speaker control method includes the following steps:

Setting a flag bit indicating whether the audio signal is accessed is a first value;

Determine whether there is an audio signal access;

When an audio signal is connected, setting the value of the flag bit to a second value, and controlling a power circuit output power;

When there is no audio signal access, it is determined whether the duration of the flag bit is greater than a preset time; and

When the duration of the flag bit being the first value is greater than the preset time, the power circuit is controlled to stop outputting power.

The above speaker control system and method can determine whether or not there is an audio signal access, and when no audio signal is connected, the output power is stopped, thereby achieving the purpose of energy saving.

10. . . Speaker control system

20. . . Controller

30. . . Memory

200. . . Detection unit

202. . . Identification unit

204. . . control unit

300. . . Flag bit

40. . . Power circuit

50. . . Audio interface

1 is a block diagram of a preferred embodiment of a speaker control system of the present invention.

2 is a flow chart of a preferred embodiment of the speaker control method of the present invention.

Referring to FIG. 1, the speaker control system 10 of the present invention is used to control whether a power circuit 40 provides operating power for a speaker, wherein the power circuit 40 is used to convert an external power source that is connected into a power source required for a speaker. A preferred embodiment of the speaker control system 10 includes a controller 20 and a memory 30. The controller 20 can be a component with data processing capabilities, such as a microprocessor. In this embodiment, the controller 20 is connected to an audio interface 50 to receive an audio signal output by a computer, and is also used to control whether the power circuit 40 outputs power to supply power to the speaker.

A flag bit 300 is stored in the memory 30. The flag bit 300 has a first value.

The controller 20 includes a detecting unit 200, an identifying unit 202, and a control unit 204.

The detecting unit 200 is configured to detect whether the audio interface 50 has audio signal access. In this embodiment, the first value of the flag bit 300 is set by the detecting unit 200. When the audio signal is accessed, the detecting unit 200 changes the value of the flag bit 300 to a second value, and the detecting unit 200 further outputs a first control signal to the control unit 204; When the audio signal is accessed, the detecting unit 200 outputs a first trigger signal to the identifying unit 202.

When the first trigger signal output by the detecting unit 200 is received, the identifying unit 202 determines whether the value of the flag bit 300 is greater than a preset time, and when the flag bit 300 is When the duration of the first value is not greater than the preset time, the identification unit 202 outputs a second control signal; when the duration of the flag bit 300 is greater than the preset time, the detecting unit 200 Continue to determine whether the audio interface 50 has audio signal access.

The control unit 204 is configured to receive the first control signal output by the detecting unit 200 and the second control signal output by the identifying unit 202. When the control unit 204 receives the first control signal output by the identification unit 202, the control unit 204 controls the power supply circuit 40 to output power, so that the control speaker starts to work when the audio signal is accessed. At the same time, the control unit 204 also outputs a second trigger signal to the detecting unit 200, so that the detecting unit 200 resets the value of the flag bit 300 to the first value. When the control unit 204 receives the second control signal output by the identification unit 202, the control unit 204 controls the power supply circuit 40 to have no power output, that is, when the speaker has no audio signal, the control speaker stops working, thereby achieving Energy saving purposes.

Referring to FIG. 2, a preferred embodiment of the speaker control method of the present invention includes the following steps:

In step S1, the detecting unit 200 initializes the flag bit 300 to a first value.

In step S2, the detecting unit 200 determines whether the audio interface 50 has audio signal access. When an audio signal is accessed, step S3 is performed. When no audio signal is accessed, the detecting unit 200 outputs a first trigger signal. And perform step S5.

In step S3, the detecting unit 200 sets the value of the flag bit 300 to a second value, and outputs the first control signal, and then performs step S4.

In step S4, the control unit 204 controls the power circuit 50 to output power after receiving the first control signal.

Step S5, after the first trigger signal is received, the identification unit 202 determines whether the duration of the flag bit is greater than the preset time; when the flag bit 300 is the first value, the time is not greater than the preset time. Then, it returns to step S2.

Step S6, when the time when the flag bit is the first value is greater than the preset time, the second control signal is output to the control unit 204; after receiving the second control signal, the control unit 204 stops the output of the control power circuit 40. power supply.

The above speaker control system and method can determine whether there is an audio signal access. When no audio signal is connected or no audio signal is connected for a preset time, the power supply circuit has no power output, thereby achieving energy saving.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.

10. . . Speaker control system

20. . . Controller

30. . . Memory

200. . . Detection unit

202. . . Identification unit

204. . . control unit

300. . . Flag bit

40. . . Power circuit

50. . . Audio interface

Claims (6)

A speaker control system comprising:
a detecting unit is configured to set a flag bit for indicating whether the audio signal is connected to the first value, and the detecting unit is further configured to determine whether the audio interface of the speaker has audio signal access, when the audio signal is accessed. The detecting unit sets the value of the flag bit to a second value and outputs a first control signal; when no audio signal is connected, the detecting unit outputs a first trigger signal;
An identification unit, when the identification unit receives the first trigger signal transmitted by the detecting unit, the identifying unit determines whether the duration of the flag bit is greater than a preset time; when the flag bit is When the duration of the first value is greater than the preset time, the identification unit outputs a second control signal; and a control unit controls the power supply circuit when receiving the first control signal output by the detection unit Outputting a power source; when receiving the second control signal transmitted by the identification unit, the control unit controls the power circuit to stop outputting power. The speaker control system of claim 1, wherein the detecting unit continues to detect whether the audio interface is connected to the audio signal when the duration of the first bit is not greater than the preset time. In. The speaker control system of claim 2, wherein after receiving the first control signal output by the detecting unit, the control unit outputs a second trigger signal to the detecting unit to enable the detecting The unit resets the value of the flag bit to the first value. A speaker control method includes the following steps:
Setting a flag bit indicating whether the audio signal is accessed is a first value;
Determine whether there is an audio signal access;
When an audio signal is connected, setting the value of the flag bit to a second value, and controlling a power circuit output power;
When no audio signal is connected, determining whether the duration of the flag bit is greater than a preset time; and when the duration of the flag bit is greater than the preset time, controlling the power source The circuit stops outputting power. The speaker control method according to claim 4, wherein when the time when the flag bit is the first value is not greater than the preset time, the process returns to the step of “determining whether there is an audio signal access”. The speaker control method according to claim 5, wherein the step “when the audio signal is connected, setting the value of the flag bit to the second value, and controlling the power output of the power circuit” returns to the step “setting A flag bit is the first value."