Method and apparatus for displaying multimedia information
First Claim
1. A method for displaying multimedia data on a remote device, comprising:
- detecting an updated region in a frame containing data from a multimedia data source;
determining a corresponding compression method according to characteristics of said updated region;
compressing said updated region to obtain compressed data by using said corresponding compression method;
transmitting said compressed data, coordinates of said updated region, and a type of said corresponding compression method to said remote device via a transmission channel; and
updating a display on said remote device according to said compressed data, said coordinates of said updated region, and said type of said corresponding compression method.
1 Assignment
0 Petitions
Accused Products
Abstract
A data source apparatus, such as a computer, is connected to a remote device, such as a wireless projector, via a transmission channel, such as a wireless network, so that the remote device shows display images of the data source apparatus. Updated regions of the data source apparatus are detected and analyzed. Corresponding compression methods are then selected according to the characteristics of the updated regions. Then, the updated regions are compressed using the selected compression methods, and the compressed data accompanied by meta data indicating the type of the compression methods and coordinate values of the updated regions are then transmitted to the remote device. Then, the remote device updates its display according to the received data.
7 Citations
21 Claims
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1. A method for displaying multimedia data on a remote device, comprising:
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detecting an updated region in a frame containing data from a multimedia data source; determining a corresponding compression method according to characteristics of said updated region; compressing said updated region to obtain compressed data by using said corresponding compression method; transmitting said compressed data, coordinates of said updated region, and a type of said corresponding compression method to said remote device via a transmission channel; and updating a display on said remote device according to said compressed data, said coordinates of said updated region, and said type of said corresponding compression method. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for displaying multimedia data on a remote device, said apparatus being coupled to a multimedia data source, said apparatus comprising:
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a frame data capturing circuit for capturing data of a frame from said multimedia data source; an updated region detection circuit for detecting an updated region in said frame from said data; a determining circuit for determining a corresponding compression method according to characteristics of said updated region; and a compression circuit for compressing said updated region to obtain compressed data by using said corresponding compression method, wherein said compressed data, coordinates of said updated region, and a type of said corresponding compression method are transmitted to said remote device for updating a display on said remote device. - View Dependent Claims (15, 16, 17)
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18. An apparatus for displaying multimedia data on a remote device, said apparatus being coupled to said remote device and a transmission channel, said apparatus comprising:
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a receiving circuit receiving compressed data of an updated region in a frame, coordinates of said updated region, and a type of a compression method from a multimedia data source via said transmission channel, said compression method used to compress said updated region; a decompression circuit for decompressing said compressed data to obtain data of said updated region according to said type of said compression method; and a display circuit for transmitting said data of said updated region to said remote device according to said coordinates of said updated region for updating a display on said remote device. - View Dependent Claims (19, 20, 21)
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Specification