Apparatus for reproducing digital signal
First Claim
1. A digital signal reproducing apparatus for reproducing a digital signal including address data to identify a data block from a recording medium, comprising:
- reproducing means for reproducing the digital signal including the address data recorded on the recording medium;
memory means for storing the digital signal reproduced by said reproducing means;
means for extracting the address data from the reproduced digital signal;
means for forming reference address data from the extracted address data including multiple coincidence detecting means for detecting multiple, successive coincidences between successive, adjacent pairs of said extracted address data;
comparing means for comparing the extracted address data and the reference address data; and
means for writing the reproduced digital signal into said memory means in response to a comparison output signal from said comparing means.
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Accused Products
Abstract
A digital signal reproducing apparatus for reproducing a digital signal from a recording medium on which a digital signal, including coded address data to identify a data block, is recorded includes a reproducing circuit for reproducing the recorded signal, a memory for storing the reproduced signal, an address extracting circuit for taking out the address data from the reproduced signal, a circuit for forming a reference address from the extracted address data, a comparator for comparing the extracted data and the reference address, and a writing circuit for selectively writing the reproduced signal into the memory in response to the output from the comparator.
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Citations
9 Claims
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1. A digital signal reproducing apparatus for reproducing a digital signal including address data to identify a data block from a recording medium, comprising:
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reproducing means for reproducing the digital signal including the address data recorded on the recording medium; memory means for storing the digital signal reproduced by said reproducing means; means for extracting the address data from the reproduced digital signal; means for forming reference address data from the extracted address data including multiple coincidence detecting means for detecting multiple, successive coincidences between successive, adjacent pairs of said extracted address data; comparing means for comparing the extracted address data and the reference address data; and means for writing the reproduced digital signal into said memory means in response to a comparison output signal from said comparing means. - View Dependent Claims (2, 3, 4, 5)
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6. Digital signal reproducing apparatus having two rotary heads for reproducing from a magnetic tape a digital signal including address data to identify a data block of the digital signal, comprising:
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reproducing means for reproducing the digital signal including the address data recorded on the recording medium; means for extracting the address data from the reproduced digital signal; means for forming reference address data from the extracted address data including multiple coincidence detecting means for detecting multiple, successive coincidences between successive, adjacent pairs of said extracted address data; comparing means for comparing the extracted address data and the reference address data and producing a coincidence output signal when said extracted address data and said reference address data coincide and belong to the same data block; memory means for storing as data blocks the digital signal reproduced by said reproducing means; and means for selectively writing the data blocks of the reproduced digital signal into said memory means when said coincidence output signal from said comparing means indicates coincidence between said extracted address data and said reference address data and for not writing therein when said coincidence output signal indicates no coincidence. - View Dependent Claims (7, 8, 9)
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Specification