Audio/video device having a volume control function for an external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor
First Claim
1. A volume control method for an A/V device having a speaker for reproducing an audio signal, an audio output port for externally outputting the audio signal, and a display unit for reproducing images, the method comprising:
- detecting whether an external audio reproduction unit is plugged in the audio output port;
displaying on the display unit a volume control menu window; and
increasing or decreasing a volume level provided in the volume control menu window by using volume control buttons of a remote controller,wherein the displaying the volume control menu window and the increasing or decreasing the volume level are based on a result of the detecting whether an external audio reproduction unit is plugged in the audio output port; and
wherein the volume level corresponds to the signal level of the audio signal output to the audio output port.
1 Assignment
0 Petitions
Accused Products
Abstract
An audio/video (A/V) device having a volume control function for external audio reproduction units by using volume control buttons of a remote controller is provided. The A/V device includes speakers, an audio output port for externally outputting an audio signal, an audio signal processing unit for reproducing and amplifying the audio signal and applying the amplified audio signal to the speakers or the audio output port, a memory unit for storing volume control values, and a control unit for applying to the audio signal processing unit any of the volume control values stored in the memory based on whether the external audio reproduction unit is plugged in the audio output port. The control unit controls the audio signal processing unit to adjust the volume control values for the audio output port by the volume control buttons when the external audio reproduction unit is plugged in the audio output port.
138 Citations
16 Claims
-
1. A volume control method for an A/V device having a speaker for reproducing an audio signal, an audio output port for externally outputting the audio signal, and a display unit for reproducing images, the method comprising:
-
detecting whether an external audio reproduction unit is plugged in the audio output port; displaying on the display unit a volume control menu window; and increasing or decreasing a volume level provided in the volume control menu window by using volume control buttons of a remote controller, wherein the displaying the volume control menu window and the increasing or decreasing the volume level are based on a result of the detecting whether an external audio reproduction unit is plugged in the audio output port; and wherein the volume level corresponds to the signal level of the audio signal output to the audio output port. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An audio/visual (A/V) device which processes an audio signal for an external audio reproduction unit, the A/V device comprising:
-
a speaker operable to output the audio signal; an audio output port, which is connectable to an external audio reproduction unit and operable to output the audio signal to the external audio reproduction unit; an audio signal processing unit operable to process the audio signal and output the processed audio signal to one of the speaker and the audio output port; a display screen operable to display one of a first On-screen Display (OSD) window, which indicates that the external audio reproduction unit is connected to the audio output port, and a second OSD window, which indicates that the external audio reproduction unit is not connected to the audio output port; and a control unit which is operable to receive an input command and which controls the audio signal processing unit and the display screen, wherein if the control unit receives the input command and the external audio reproduction unit is connected to the audio output port, the control unit controls the display screen to automatically display the first OSD window, and wherein if the control unit receives the input command and the external audio reproduction unit is not connected to the audio output port, the control unit controls the display screen to automatically display the second OSD window. - View Dependent Claims (8, 9, 10, 11)
-
-
12. A method for controlling an audio/visual (A/V) device having an audio output port, speaker and a display screen, wherein the A/V device processes an audio signal for an external audio reproduction unit, the method comprising:
-
determining whether the external audio reproduction unit is connected to the audio output port of the A/V device; receiving a input command; if the external audio reproduction unit is connected to the audio output port of the A/V device, automatically displaying on the display screen a first OSD window indicating that the external audio reproduction unit is connected to the audio output port; and if the external audio reproduction unit is not connected to the audio output port, automatically displaying on the display screen a second OSD window indicating that the external audio reproduction unit is not connected to the audio output port. - View Dependent Claims (13, 14, 15, 16)
-
Specification