Display device and signal source switching method
AssigneeQisda Corporation
InventorChien-Nan Liao
Life of this patent
Estimating the term…
Abstract
A display device includes a USB Type-C connector module, an audio/video signal switching unit, a processing unit, and a display unit. The USB Type-C connector module includes a USB Type-C connector, a configuration channel logic IC, and a channel switching multiplexer. The processing unit selectively reads a channel setting state from one of the configuration channel logic IC and the channel switching multiplexer and determines whether the channel setting state includes an audio/video channel. When the processing unit determines that the channel setting state includes the audio/video channel, the processing unit controls the audio/video switching unit to switch a signal source of the display unit to a signal source of the USB Type-C connector module.
Claims10
A display device comprising:
- a USB Type-C connector module comprising a USB Type-C connector, a configuration channel logic IC, and a channel switching multiplexer, the USB Type-C connector being electrically connected to the configuration channel logic IC and the channel switching multiplexer, the configuration channel logic IC being electrically connected to the channel switching multiplexer;
- an audio/video signal switching unit electrically connected to the channel switching multiplexer;
- a processing unit electrically connected to the configuration channel logic IC, the channel switching multiplexer, and the audio/video signal switching unit;
- and
- a display unit electrically connected to the processing unit;
- wherein the audio/video switching unit comprises a digital decoder and an audio/video signal multiplexer, the digital decoder is electrically connected to the channel switching multiplexer, the audio/video signal multiplexer is electrically connected to the digital decoder and the processing unit, the processing unit selectively reads a channel setting state from one of the configuration channel logic IC and the channel switching multiplexer and determines whether the channel setting state comprises an audio/video channel;
- when the processing unit determines that the channel setting state comprises the audio/video channel, the processing unit controls the audio/video switching unit to switch a signal source of the display unit to a signal source of the USB Type-C connector module.
A signal source switching method adapted to a display device, the display device comprising a plurality of USB Type-C connector modules, an audio/video signal switching unit, and a display unit, each of the USB Type-C connector modules comprising a USB Type-C connector, a configuration channel logic IC, and a channel switching multiplexer, the signal source switching method comprising steps of:
- polling the USB Type-C connector modules and selectively reading a channel setting state from one of the configuration channel logic IC and the channel switching multiplexer for each of the USB Type-C connector modules;
- determining whether the channel setting state comprises an audio/video channel;
- and
- when determining that the channel setting state comprises the audio/video channel, controlling the audio/video switching unit to switch a signal source of the display unit to a signal source of one of the USB Type-C connector modules.
A display device comprising:
- a USB Type-C connector module comprising a USB Type-C connector and a configuration channel logic IC, the USB Type-C connector being electrically connected to the configuration channel logic IC;
- an audio/video signal switching unit electrically connected to the USB Type-C connector;
- a processing unit electrically connected to the configuration channel logic IC and the audio/video signal switching unit;
- and
- a display unit electrically connected to the processing unit;
- wherein the audio/video switching unit comprises a digital decoder and an audio/video signal multiplexer, the digital decoder is electrically connected to the USB Type-C connector, the audio/video signal multiplexer is electrically connected to the digital decoder and the processing unit, the processing unit reads a channel setting state from the configuration channel logic IC and determines whether the channel setting state comprises an audio/video channel;
- when the processing unit determines that the channel setting state comprises the audio/video channel, the processing unit controls the audio/video switching unit to switch a signal source of the display unit to a signal source of the USB Type-C connector module.
A signal source switching method adapted to a display device, the display device comprising a plurality of USB Type-C connector modules, an audio/video signal switching unit, and a display unit, each of the USB Type-C connector modules comprising a USB Type-C connector and a configuration channel logic IC, the signal source switching method comprising steps of:
- polling the USB Type-C connector modules and reading a channel setting state from the configuration channel logic IC for each of the USB Type-C connector modules;
- determining whether the channel setting state comprises an audio/video channel;
- and
- when determining that the channel setting state comprises the audio/video channel, controlling the audio/video switching unit to switch a signal source of the display unit to a signal source of one of the USB Type-C connector modules.
Dependencies are inferred from the claim text.