发明名称 |
Synchronisationsverfahren des Empfängers eines Mac-Norm-Fernsehsignals. |
摘要 |
The present invention relates to a method of synchronising a television receiver with MAC type signals comprising line-synchronisation words of p bits and field-synchronisation words of n bits, the line words being shifted horizontally by a given distance (A) with respect to the field words, comprising the following steps: - correlating each incoming bit sequence with the line words; - once a candidate word is detected, determining a first line word verification window at the location of the candidate, and a second field word search window at the distance (A) from the first window, this second window having a breadth of m bits (m < n); - synchronising the receiver linewise; - correlating each word appearing in the second search window with the field words; - once a candidate field word is detected, positioning a verification window at the line where this candidate word was found, and synchronising the receiver fieldwise. <IMAGE> |
申请公布号 |
DE69011606(D1) |
申请公布日期 |
1994.09.22 |
申请号 |
DE1990611606 |
申请日期 |
1990.09.18 |
申请人 |
SGS-THOMSON MICROELECTRONICS S.A., GENTILLY, FR |
发明人 |
OLIVIER, QUEINNEC, F-67100 STRASBOURG, FR |
分类号 |
H04N5/10;H04N7/00;H04N7/035;H04N7/083 |
主分类号 |
H04N5/10 |
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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