发明名称 |
METHOD FOR TRANSMITTING SUPERIMPOSED IMAGE DATA IN A RADIO FREQUENCY COMMUNICATION SYSTEM |
摘要 |
The present invention relates to a method for transmitting image data for superimposed images via wireless devices in a radio frequency communication system. The original image is transmitted via a communication channel to a receiving unit. The original image is then revised to form a revised image. The revised image is compared to the original image to determine the differences between the revised image and the original image. These differences comprise a difference image which is then transmitted to the receiving party. At the receiving end, the difference image is recombined with the previously-transmitted original image to reform the revised image. In a preferred embodiment, the original images and difference images are preferably decomposed and progressively transmitted to the receiving unit in response to image data requests from the receiving unit. |
申请公布号 |
CA2258323(A1) |
申请公布日期 |
1998.01.22 |
申请号 |
CA19972258323 |
申请日期 |
1997.07.09 |
申请人 |
ERICSSON, INC. |
发明人 |
HASSAN, AMER;MATTHEWS, DAVID G. |
分类号 |
H04N7/32;H04N1/41;H04N1/411;H04N1/417;H04N1/44;H04N7/167;H04N7/26;(IPC1-7):H04N7/42 |
主分类号 |
H04N7/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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