Method of, and apparatus for, identifying a predetermined location within a data sequence on a record carrier for processing the data sequence
AssigneeWilli Studer AG
InventorsDaniele Pelloni, Alex Ruegg, Marco Nai
Life of this patent
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Abstract
The method and apparatus permits processing, for example, editing or synchronizing data sequences without using special marking devices and marking tracks for identifying preselected locations. For this purpose, a preselected partial data sequence is formed from a predetermined data sequence and serves as a reference partial data sequence. Such reference partial data sequence is utilized as a basis for comparison with further partial data sequences originating from the same or different data sequences for retrieving or identifying operations in connection with, for example, the joining, inserting or synchronizing of data sequences.
Claims18
A method of identifying a predetermined location in an audio and/or video data sequence recorded on a record carrier and processing the data sequence, comprising the steps of:
- preselecting from the data sequence, a reference partial data sequence containing a predetermined number of data;
- forming from said data sequence, a plurality of further partial data sequences each of which contains a predetermined number of data;
- comparing said preselected reference partial data sequence and each one of said predetermined number of further partial data sequences;
- during said step of comparing said preselected reference partial data sequence and each one of said plurality of further partial data sequences, determining in said plurality of further partial data sequences, a selected further partial data sequence having a predetermined degree of conformity with said preselected reference partial data sequence;
- and
- said step of determining said selected further partial data sequence entailing the step of detecting the location of said selected further partial data sequence within said data sequence and thereby identifying the predetermined location in said data sequence on said record carrier.
An apparatus for identifying a predetermined location in an audio and/or video data sequence recorded on a record carrier and processing the data sequence, comprising:
- reading means for reading a preselected reference partial data sequence from the data sequence recorded on the record carrier;
- said reading means containing moving means for moving relative to each other said reading means and said record carrier;
- storage means connected to said reading means for storing said preselected reference partial data sequence;
- said reading means further reading a plurality of further partial data sequences from said data sequence recorded on said record carrier;
- comparator means operatively connected to said storage means and said reading means for comparing said preselected reference partial data sequence and each one of said plurality of further partial data sequences in order to thereby determine from said plurality of further partial data sequences, a selected further partial data sequence which has a predetermined degree of conformity with said preselected reference partial data sequence;
- and
- detecting means for detecting the location of said selected further partial data sequence within said data sequence and thereby identifying the predetermined location in said data sequence on said record carrier.
Dependencies are inferred from the claim text.