Sink device and operating method thereof
AssigneeLG Electronics Inc.
InventorsOhkyu Kwon, Heechen Kang
Life of this patent
Estimating the term…
Abstract
The sink device according to an embodiment of the present disclosure comprises a memory configured to store a mapping table, an external device interface configured to receive a video signal from a source device through HDMI (High-Definition Multimedia Interface) standard and a controller configured to obtain a horizontal total value, a vertical total value, and an output frequency based on the video signal, obtain a pixel clock frequency mapped to the horizontal total value, the vertical total value, and the output frequency from the mapping table, and output the video signal based on the obtained pixel clock frequency.
Claims14
A sink device, comprising:
- a memory configured to store a mapping table;
- an external device interface configured to receive a video signal from a source device through HDMI (High-Definition Multimedia Interface) standard;
- and
- a controller configured to:
- obtain a horizontal total value, a vertical total value, and an output frequency based on the video signal,
- obtain a pixel clock frequency mapped to the horizontal total value, the vertical total value, and the output frequency from the mapping table, and
- output the video signal based on the obtained pixel clock frequency,
- wherein the mapping table is a table mapping an index of video identification code (VIC), the horizontal total value, the vertical total value, the output frequency, the pixel clock frequency, and a pixel clock frequency tolerance range.
A sink device, comprising:
- a memory configured to store a mapping table;
- an external device interface configured to receive a video signal from a source device through HDMI (High-Definition Multimedia Interface) standard;
- and
- a controller configured to:
- obtain a horizontal total value, a vertical total value, and an output frequency based on the video signal,
- obtain a pixel clock frequency mapped to the horizontal total value, the vertical total value, and the output frequency from the mapping table, and
- output the video signal based on the obtained pixel clock frequency,
- wherein the mapping table is a table mapping the index, the horizontal total value, the vertical total value, and the output frequency, the pixel clock frequency, a tolerance frequency range, and a pixel clock frequency tolerance range.
An operating method of a sink device, comprising:
- storing a mapping table;
- receiving a video signal from a source device through High-Definition Multimedia Interface (HDMI) standard;
- obtaining a horizontal total value, a vertical total value, and an output frequency based on the video signal;
- obtaining a pixel clock frequency mapped to the horizontal total value, the vertical total value, and the output frequency from the mapping table, and
- outputting the video signal based on the obtained pixel clock frequency,
- wherein the mapping table is a table mapping an index of video identification code (VIC), the horizontal total value, the vertical total value, the output frequency, the pixel clock frequency, and a pixel clock frequency tolerance range.
Dependencies are inferred from the claim text.