EP0630155A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Digital signal recording apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1994-06-15
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Granted: —
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Expires: 2014-06-15
Abstract
Abstract A recording apparatus (DR) for recording digital data (Sa and Sv) comprised of a plurality of recording blocks (Br) on a recording medium includes a grouping circuit (5) which makes a group of the digital data (Sa and Sv) according to a predetermined time-based interval (St). A sequence number generator (6) divides the group into "N" sequences. "N" is an integer. A data block generator (4) divides the input data (Sa and Sv) in each sequence into a plurality of data blocks (Db). A sequence number generator (5) generates a sequence number (Ss) for each data blocks (Db) associated with each recording blocks (Br). An ID block generator (23 and 24) generates an ID information of each data block (Br) based on the sequence number (Ss). A recording block generator (8 and 9) generates the recording block (Br) based on the ID information and the data block (Db; Sa and Sv).
Inventors
- 👤 Tatsuro Juri
- 👤 Akira Iketani
- 👤 Chiyoko Matsumi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 14:18
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; H; H04; H04N; H04N21/00; H04N21/20; H04N21/23; H04N21/236; G11B27/00; G11B27/02; G11B27/031; G11B27/032; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; H04N21/40; H04N21/43; H04N21/434; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; H04N5/9265; H04N5/9267; H04N5/9268; G11B2220/00; G11B2220/90; H04N5/78; H04N5/782; H04N5/783; H04N5/93; H04N5/94; H04N5/945
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
170 words
A digital signal recording apparatus (DR) for recording digital data (Sa and Sv) comprised of a plurality of recording blocks (Br) on a recording medium, said apparatus comprising: a grouping means (5) for making a group of said digital data (Sa and Sv) according to a predetermined time-based interval (St); a data block generating means (4) for dividing said input data (Sa and Sv) included in each of said sequence into a plurality of data blocks (Db); a sequence number generating means (6) for dividing said group into "N" sequences, said "N" being an integer, to generate a sequence number (Ss) for each of said data blocks (Db) associated with each of said recording blocks (Br); an ID block generating means (23 and 24) for generating an ID information of each of said data block (Br) based on said sequence number (Ss); and a recording block generating means (8 and 9) for generating said recording block (Br) based on said ID information and said data block (Db; Sa and Sv).
Claim 2
Dependent Claim
21 words
A digital signal recording apparatus (DR) as claimed in Claim 1, wherein said sequence is one frame of a television signal.
Claim 3
Dependent Claim
30 words
A digital signal recording apparatus (DR) as claimed in Claim 2, wherein said sequence is determined as to be synchronized to the color frame cycle of a composite television signal.
Claim 4
Dependent Claim
43 words
A digital signal recording apparatus (DR) as claimed in Claim 1, further comprising a parity generating means (8) for generating parity data (Bp) for error correction based on said recording block (Br) and adding said parity data (Bp) to said data block (Db).
Claim 5
Dependent Claim
62 words
A digital signal recording apparatus (DR) as claimed in Claim 1, further comprising a data information generating means (33) for generating a data signal (Sd) indicative of type of said digital data (Sr; Sa and Sv) so that said ID block generating means (23 and 24) generates said ID information (ID) based on said sequence number (Ss) and said data signal (Sd).
Claim 6
Dependent Claim
146 words
A digital signal recording apparatus (DR) for recording digital data (Sr; Sa and Sv) comprised of a plurality of recording blocks (Br), each of said recording blocks (Br) having an ID block (ID) including "N" divided sequence number (Ss') thereof and data block (Db'; Sa and Sv), said apparatus comprising: a data block extracting means (12a) for extracting said data block (Db) from said digital data (Sa and Sv); a sequence number extracting means (12b) for extracting said sequence number (Ss') from said digital data (Sr; Sa and Sv); an ID block generating means (23 and 24) for producing an ID information (ID) for said extracted data block (Db') based on said extracted sequence number (Ss'); and a recording block generating means (8 and 9) for generating a recording block (Br) based on said ID information (ID) and said extracted data block (Db'; Sa and Sv).
Claim 7
Dependent Claim
43 words
A digital signal recording apparatus (DR) as claimed in Claim 6, further comprising a parity generating means (8) for generating parity data (Bp) for error correction based on said recording block (Br) and adding said parity data (Bp) to said data block (Db).
Claim 8
Dependent Claim
75 words
A recording apparatus (DR) as claimed in Claim 6 further comprising a data information generating means (33) for generating a data signal (Sd) indicative of type of said digital data (Sr; Sa and Sv) when said data block extracting means (12a) extracts nothing of said data block (Db) so that said ID block generating means (23 and 24) generates said ID information (ID) based on said extracted sequence number (Ss') and said data signal (Sd).
Claim 9
Dependent Claim
67 words
A recording apparatus (DR) as claimed in Claim 6 further comprising a sequence error detecting means (15) for determining whether said extracted sequence number (Ss') is correct or not, and newly producing a sequence number (15) other than "N" so that said ID block generating means (23 and 24) generates an ID information for said extracted data block (Br) based on said newly produced sequence number (15).
Claim 10
Dependent Claim
19 words
A recording apparatus (DR) as claimed in Claim 9, wherein said "N" is an integer being zero to eleven.
Claim 11
Dependent Claim
17 words
A recording apparatus (DR) as claimed in Claim 9, wherein said newly produced sequence number is 15.
References Cited (Backward Citations)
No citation records indexed.
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