The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2003
Filed:
Nov. 02, 1999
Sang-ug Kang, Taegu, KR;
Kook-yeol Yoo, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A video data transmitting device for discriminatively protecting compressed video data from errors according to the significance of the data and for transmitting the video data, and a video data receiving device for decompressing video data transmitted by the transmitting device, are provided. The video data transmitting device includes a compression portion for discriminating the significance of the video data, generating region information classified by regions, compressing the video data by regions according to the region information, and outputting compressed video data, and a coding portion for receiving the region information and the compressed video data, coding the compressed video data by regions according to a predetermined coding rule corresponding to the significance included in the region information using the RCPC coding method, inserting a predetermined marker into the coded data, and outputting channel-coded video data via a communications channel. The video data receiving device includes a decoding portion for receiving the channel-coded video data via the communications channel, extracting coding rate change information indicating that the coding rule has been changed by detecting a marker from channel-coded video data, and decoding the video data according to a corresponding coding rule for each region; and a decompression portion for decompressing the video data by regions with reference to region information. Thus, video data can effectively cope with errors likely to be generated on the communications channel.