A/V transmission device and A/V reception device
AssigneeLG Electronics Inc.
InventorsYeonoh Nam, Myongyoung Lee, Seokpan Kang
Life of this patent
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Abstract
A transmission device in a wireless display system for efficiently displaying an image according to a network environment that changes in real time that includes an RF transmission module for transmitting image data to a reception device, and a processor for acquiring network state information, determining the compression ratio of an original image and values of one or more image quality factors on the basis of the network state information, compressing, to the determined compression ratio, an image signal processed according to the determined values, and transmitting the compressed compression image to the reception device.
Claims8
An A (Audio)/V (Video) transmitting device, comprising:
- a RF transmitting module configured to transmit an image data to an A/V receiving device;
- and
- a processor configured to:
- obtain a complexity of an original moving image,
- based on the complexity of the original moving image being less than a reference complexity determine a first compression ratio for compressing moving image data of the original moving image and compress the moving image data using the first compression ratio, and
- based on the complexity of the original moving image being greater than or equal to the reference complexity:
- obtain network state information including a data transmission rate available at the A/V transmitting device and a reception sensitivity available at the A/V receiving device, wherein information on the data transmission rate and the reception sensitivity is received from the A/V receiving device,
- determine a second compression ratio for compressing the moving image data of the original moving image and values of one or more quality factors based on the obtained network state information including the data transmission rate and the reception sensitivity,
- compress the moving image data processed according to the determined values of one or more quality factors and the second compression ratio, and
- transmit the compressed moving image to the A/V receiving device through the RF transmitting module,
- wherein the second compression ratio is lower than the first compression ratio.
Dependencies are inferred from the claim text.