US 2020/0026104 A1 · DISPLAY APPARATUS AND HEADPHONE CONTROL CIRCUIT THEREOF

Abstract

Provided are a display apparatus and a headphone control circuit thereof including a main chip, a headphone port and a switch circuit including a control circuit, a left channel switch and a right channel switch, the control circuit, the left channel switch and the right channel switch connecting to the main chip, the control circuit connecting to the left channel switch and the right channel switch, the left channel switch and the right channel switch connecting to the headphone port; the control circuit configured to receive a control signal output from the main chip and, output according to the control signal a first signal to the left channel switch and a second signal to the right channel switch respectively, the first signal is used to control on or off of the left channel switch, and the second signal is used to control on or off of the right channel switch.

Claims20

Dependent claims

A headphone control circuit of a display apparatus, comprising:

a main chip;
a headphone port;
a switch circuit, which comprises a control circuit, a left channel switch and a right channel switch, wherein the control circuit, the left channel switch and the right channel switch are connected to the main chip, the control circuit is connected to the left channel switch and the right channel switch, and the left channel switch and the right channel switch are connected to the headphone port;
where the control circuit is configured to receive a control signal output from the main chip and, output, according to the control signal, a first signal to the left channel switch and a second signal to the right channel switch respectively, wherein the first signal is used to control on or off of the left channel switch, and the second signal is used to control on or off of the right channel switch.

1 more element

A display apparatus, comprising:

a headphone control circuit, wherein the headphone control circuit comprises:
a main chip;
a headphone port;
a switch circuit, which comprises a control circuit, a left channel switch and a right channel switch, wherein the control circuit, the left channel switch and the right channel switch are connected to the main chip, the control circuit is connected to the left channel switch and the right channel switch, and the left channel switch and the right channel switch are connected to the headphone port;
where the control circuit is configured to receive a control signal output from the main chip and, output, according to the control signal, a first signal to the left channel switch and a second signal to the right channel switch respectively, wherein the first signal is used to control on or off of the left channel switch, and the second signal is used to control on or off of the right channel switch.

2 more elements

Dependencies are inferred from the claim text.

Display apparatus and headphone control circuit thereof

Life of this patent

Display apparatus and headphone control circuit thereof

Life of this patent

Abstract

Claims20