发明名称 Method and device for insertion of asynchronous data in a digital signal
摘要 The disclosure concerns a procedure for insertion of samples representing digital data from a first source having a first bit rate in a digitized signal from a second source having a second bit rate, wherein the second bit rate is greater than the first bit rate, and each data of the first source is associated with at least one sample of a series of samples at the second bit rate, the samples being presented to a polyphase filter for which a set of coefficients is associated with a specific phase error previously introduced by said associations, the filtered samples being included in the digitized signal. The invention also includes a device that implements the above insertion procedure. The invention is applicable notably in the field of insertion of Teletext data into a digitized video signal.
申请公布号 US5970071(A) 申请公布日期 1999.10.19
申请号 US19950492600 申请日期 1995.06.20
申请人 THOMSON MULTIMEDIA S.A. 发明人 LE GARREC, THOMAS
分类号 H04N7/12;H03H17/06;H04J3/16;H04N7/025;H04N7/03;H04N7/035;H04N7/088;H04N7/24;H04N7/54;(IPC1-7):H04J3/12 主分类号 H04N7/12
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