Method of controlling display by headset with inline control, and related devices

A control circuit board of a display, comprising a memory configured to store a computer readable program, and a processor, wherein the processor is configured to read the computer-readable program to perform following method steps:

• detecting whether a headset jack of the display is plugged with the headset;
• after the headset jack of the display is determined to be plugged with the headset, inputting a detection bias voltage to the headset, and monitoring a feedback signal of the detection bias voltage by monitoring the feedback signal of the detection bias voltage in voltage or frequency level;
• in response to detecting a change in the feedback signal of the detection bias voltage, identifying a user's control instruction to the display using the headset according to a control signal sent by the headset;
• and
• controlling the display to perform a corresponding display operation according to the control instruction;
• wherein the processor is configured to identify a user's control instruction to the display using the headset with inline control according to a control signal sent by the headset with inline control, by:
• determining that the headset is a headset for a first system in response to detecting the change in the feedback signal of the detection bias voltage is only a voltage change;
• and
• determining that the headset is a headset for a second system in response to detecting the change in the feedback signal of the detection bias voltage comprises a frequency change;
• wherein the processor is configured to monitor the feedback signal of the detection bias voltage in the frequency level, and determine the control instruction when the headset is determined to be the headset for the second system, by:
• determining that the user triggered a third button in response to detecting a frequency change and detecting changes in both voltages output from a first switch and a second switch of the headset for the second system.

A display, comprising a control circuit board, the control circuit board comprising a memory configured to store a computer readable program, and a processor, wherein the processor is configured to read the computer-readable program to perform following method steps:

• detecting whether a headset jack of the display is plugged with the headset;
• after the headset jack of the display is determined to be plugged with the headset, inputting a detection bias voltage to the headset, and monitoring a feedback signal of the detection bias voltage by monitoring the feedback signal of the detection bias voltage in voltage or frequency level;
• in response to detecting a change in the feedback signal of the detection bias voltage, identifying a user's control instruction to the display using the headset according to a control signal sent by the headset;
• and
• controlling the display to perform a corresponding display operation according to the control instruction;
• wherein the processor is configured to identify a user's control instruction to the display using the headset with inline control according to a control signal sent by the headset with inline control, by:
• determining that the headset is a headset for a first system in response to detecting the change in the feedback signal of the detection bias voltage is only a voltage change;
• and
• determining that the headset is a headset for a second system in response to detecting the change in the feedback signal of the detection bias voltage comprises a frequency change;
• wherein the processor is configured to monitor the feedback signal of the detection bias voltage in the frequency level, and determine the control instruction when the headset is determined to be the headset for the second system, by:
• determining that the user triggered a third button in response to detecting a frequency change and detecting changes in both voltages output from a first switch and a second switch of the headset for the second system.