Patent US2598739A successfully refreshed from Google Patents.
EP0093969A2
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Method, apparatus and recording medium for error correction
Assignee: Sony Corp
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Filing: 1983-04-28
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Granted: —
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Expires: 2003-04-28
Abstract
Abstract A method and an apparatus for error correction are disclosed. This method essentially comprises the error correction coding processing and the interleaving and de-interleaving processings for digital information data in the subchannels to be transmitted. And the apparatus comprises means for performing those processings. In more detail, the improved method for error correction of the present invention comprises the steps of: dividing digital Information data in one PACKET divided by sync signals into a plurality of PACKs as dividing units; adding a first redundant code for error detection or error correction to each of the dividing units; and interleaving the digital information data in each of the dividing units and the first redundant code for error detection or error correction; whereby the Interleaved data is transmitted together with frame sync signals and main data. The data in the subchannels is coded and Interleaved and then recorded so that the distances between the data become large. Therefore, if errors should occur, the interpolation can be properly done, thereby elevating the error correcting ability without requiring any complicated error correction circuit and any larger buffer memory such as those for the data in the main channel.
Inventors
- 👤 Tsuneo Furuya
- 👤 Katsuya C/O Sony Gotanda Youth House Hori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 21:06
CPC Classifications
H; H03; H03M; H03M13/00; H03M13/29; H03M13/2906; H03M13/2921; H03M13/2924; G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G11; G11B; G11B20/00; G11B20/10; G11B20/18; G11B20/1806; G11B20/1809; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; G11B27/34; G11B5/00; G11B5/02; G11B5/09; G11B20/10527; G11B2020/10537; G11B2020/10592; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545; H03M13/03; H03M13/05; H03M13/13; H03M13/15
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
108 words
In a method for error correction in that the error correction coding is performed for digital information data in subchannels to be transmitted, the improvement comprises the steps of: dividing digital information data in one PACKET (ABCD) divided by sync signals into a plurality of PACKs (A; B; C; D) as dividing units; adding a first redundant code for error detection or error correction to each of said dividing units; and interleaving said digital information data in each of said dividing units and said first redundant code for error detection or error correction; whereby said interleaved data is transmitted together with frame sync signals (FS) and main data.
Claim 2
Dependent Claim
108 words
In a method for error correction in that the error correction coding is performed for digital information data in subchannels to be transmitted, the improvement comprises the steps of: dividing digital information data in one PACKET (ABCD) divided by sync signals into a plurality of PACKs (A; B; C; D) as dividing units; adding a first redundant code for error detection or error correction to each of said dividing units; and interleaving said digital information data in each of said dividing units and said first redundant code for error detection or error correction; whereby said interleaved data is transmitted together with frame sync signals (FS) and main data.
Claim 3
Dependent Claim
44 words
The method for error correction as claimed in claim 1, wherein either of said dividing units, or PACKs (A; B; C; D), in said one PACKET (ABCD) includes the digital data indicative of the contents of said digital information data in said PACKET (ABCD).
Claim 4
Dependent Claim
46 words
The method for error correction as claimed in claim 1, wherein either of said dividing units, or PACKs (A; B; C; D), in said one PACKET (ABCD) includes the digital data to indicate a method of processing for error'detection or error correction of said PACKET (ABCD).
Claim 5
Dependent Claim
47 words
The method for error correction as claimed in claim 1, wherein each of said dividing units, or PACKs (A; B; C; D), in said one PACKET (ABCD) includes the digital data indicative of the contents of the digital information data included in each of said dividing units.
Claim 6
Dependent Claim
42 words
The method for error correction as claimed in claim 4, wherein a second redundant code for error detection or error correction is added respectively to said digital data indicative of the contents of said information included in each of said dividing units.
Claim 7
Dependent Claim
68 words
The method for error correction as claimed in claim 5, wherein said digital data indicative of the contents of said information and said second redundant code for error detection or error correction are interleave-processed, and wherein said interleave-processing has a series different from the series of the interleave-processing which has been performed for said digital information data and said first redundant code for error detection or error correction.
Claim 8
Dependent Claim
114 words
In an apparatus for error correction in that the error correction coding is performed for digital information data in subchannels to be transmitted, the improvement comprises: means (26) for dividing digital information data in one PACKET (ABCD) divided by sync signals into a plurality of PACKs (A; B; C; D) as dividing units; means (12) for adding a first redundant code for error detection or error correction to each of said dividing units; and means (53) for interleaving said digital information data in each of said dividing units and said first redundant code for error detection or error correction; whereby said interleaved data is transmitted together with frame sync signals (FS) and main data.
Claim 9
Dependent Claim
114 words
In an apparatus for error correction in that the error correction coding is performed for digital information data in subchannels to be transmitted, the improvement comprises: means (26) for dividing digital information data in one PACKET (ABCD) divided by sync signals into a plurality of PACKs (A; B; C; D) as dividing units; means (12) for adding a first redundant code for error detection or error correction to each of said dividing units; and means (53) for interleaving said digital information data in each of said dividing units and said first redundant code for error detection or error correction; whereby said interleaved data is transmitted together with frame sync signals (FS) and main data.
Claim 10
Dependent Claim
43 words
The apparatus for error correction as claimed in claim 7, wherein either of said dividing units, or PACKs (A; B; C; D), in said PACKET (ABCD) includes the digital data indicative of the contents of said digital information data in said PACKET (ABCD).
Claim 11
Dependent Claim
47 words
The apparatus for error correction as claimed in claim 7, wherein either of said dividing units, or PACKs (A; B; C; D), in said one PACKET (ABCD) includes the digital data to indicate a method of processing for error detection or error correction of said PACKET (ABCD).
Claim 12
Dependent Claim
46 words
The apparatus for correction as claimed in claim 7, wherein each of said dividing units, or PACKs (A; B; C; D), in said one PACKET (ABCD) includes the digital data indicative of the contents of the digital information data included in each of said dividing units.
Claim 13
Dependent Claim
42 words
The apparatus for error correction as claimed in claim 10, wherein a second redundant code for error detection or error correction is added respectively to said digital data indicative of the contents of said information included in each of said dividing units.
Claim 14
Dependent Claim
68 words
The apparatus for error correction as claimed in claim 11, wherein said digital data indicative of the contents of said information and said second redundant code for error detection or error correction are interleave-processed, and wherein said interleave-processing has a series different from the series of the interleave-processing which has been performed for said digital information data and said first redundant code for error detection or error correction.
Claim 15
Dependent Claim
135 words
In a method for correction of data including n SYMBOLs (or bits; the same shall apply hereinafter) and m SYMBOLs which have different kinds of information, the improvement comprises the steps of: supplying said n SYMBOLs and encoding a first error detection code or error correction code to generate a redundant code of k SYMBOLs for said n SYMBOLS; supplying said m SYMBOLs and encoding a second error detection code or error correction code to generate a redundant code of k SYMBOLs for said m SYMBOLS; and interleaving said (n + k + m + 1) SYMBOLs to a series having a predetermined length of a plurality of SYMBOLS, thereby making mutual distances of said (n + k) SYMBOLs larger than those of said (m + 1) SYMBOLs in said series of said predetermined length.
Claim 16
Dependent Claim
135 words
In a method for correction of data including n SYMBOLs (or bits; the same shall apply hereinafter) and m SYMBOLs which have different kinds of information, the improvement comprises the steps of: supplying said n SYMBOLs and encoding a first error detection code or error correction code to generate a redundant code of k SYMBOLs for said n SYMBOLS; supplying said m SYMBOLs and encoding a second error detection code or error correction code to generate a redundant code of k SYMBOLs for said m SYMBOLS; and interleaving said (n + k + m + 1) SYMBOLs to a series having a predetermined length of a plurality of SYMBOLS, thereby making mutual distances of said (n + k) SYMBOLs larger than those of said (m + 1) SYMBOLs in said series of said predetermined length.
Claim 17
Dependent Claim
133 words
In a digital signal reproducing apparatus for reproducing digital signals recorded in recording areas for subcoding signals, digital information data in one PACKET (ABCD) divided by sync signals being divided into a plurality of dividing units, an error detection or error correction coding processing being performed for each of said dividing units, and said digital information data and a redundant code for error detection or error correction in each of said dividing units being interleave-processed and recorded into said recording areas for the subcoding signals (P ... W), whereby said apparatus further de-interleaves said digital information data and said redundant code for error detection or error correction taken out of the reproduced signals and performs the error detection or error correction for each of said dividing units, thereby reproducing said digital information data.
Claim 18
Dependent Claim
133 words
In a digital signal reproducing apparatus for reproducing digital signals recorded in recording areas for subcoding signals, digital information data in one PACKET (ABCD) divided by sync signals being divided into a plurality of dividing units, an error detection or error correction coding processing being performed for each of said dividing units, and said digital information data and a redundant code for error detection or error correction in each of said dividing units being interleave-processed and recorded into said recording areas for the subcoding signals (P ... W), whereby said apparatus further de-interleaves said digital information data and said redundant code for error detection or error correction taken out of the reproduced signals and performs the error detection or error correction for each of said dividing units, thereby reproducing said digital information data.
Claim 19
Dependent Claim
36 words
The digital signal reproducing apparatus as claimed in claim 14, wherein either of said dividing units in said one PACKET (ABCD) includes the digital data indicative of the contents of said information in said PACKET (ABCD).
Claim 20
Dependent Claim
41 words
The digital signal reproducing apparatus as claimed in claim 14, wherein either of said dividing units in said one PACKET (ABCD) includes the digital data to indicate a method of processing for error detection or error correction of said PACKET (ABCD).
Claim 21
Dependent Claim
41 words
The digital signal reproducing apparatus as claimed in claim 14, wherein each of said dividing units in said one PACKET (ABCD) includes the data indicative of the control information of said digital information data included in each of said dividing units.
Claim 22
Dependent Claim
39 words
The digital signal reproducing apparatus as claimed in claim 17, wherein a second redundant code for error detection or error correction is added respectively to said data indicative of said control information included in each of said dividing units.
References Cited (Backward Citations)
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