IE37695L - Error correcting encoder - Google Patents
Error correcting encoderInfo
- Publication number
- IE37695L IE37695L IE720794A IE79472A IE37695L IE 37695 L IE37695 L IE 37695L IE 720794 A IE720794 A IE 720794A IE 79472 A IE79472 A IE 79472A IE 37695 L IE37695 L IE 37695L
- Authority
- IE
- Ireland
- Prior art keywords
- output
- circuit
- input
- code generator
- code
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
- Error Detection And Correction (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
1357030 Digital transmission; coding error correction STANDARD TELEPHONES & CABLES Ltd 30 Sept 1971 45534/71 Heading H4P A circuit for correcting errors developed in a code generator 3 comprises an error correcting circuit 5 controlled by a comparator 8 which receives both input signals and the output from a decoder 7. Any discrepancy found by comparator 8 causes circuit 5 to modify the output from a buffer store 4. The signal input need not be connected to the code generator. The output from the code may be decoded, compared with the input, the code generator operation and hence the output being modified by the correction circuit. Such arrangement is described in connection with Fig. 2 (not shown) in which digits of an 8 digit binary code corresponding to decreasing values of amplitude are produced successively and compared with the input.
[GB1357030A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4553471A GB1357030A (en) | 1971-09-30 | 1971-09-30 | Error correcting pcm encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE37695L true IE37695L (en) | 1973-03-30 |
| IE37695B1 IE37695B1 (en) | 1977-09-28 |
Family
ID=10437575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE794/72A IE37695B1 (en) | 1971-09-30 | 1972-06-07 | Error correcting p.c.m. encoder |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4843862A (en) |
| AU (1) | AU473400B2 (en) |
| BR (1) | BR7206670D0 (en) |
| CH (1) | CH559478A5 (en) |
| DE (1) | DE2247120A1 (en) |
| ES (1) | ES407161A1 (en) |
| FR (1) | FR2154669B1 (en) |
| GB (1) | GB1357030A (en) |
| IE (1) | IE37695B1 (en) |
| NL (1) | NL7213173A (en) |
| ZA (1) | ZA724529B (en) |
-
1971
- 1971-09-30 GB GB4553471A patent/GB1357030A/en not_active Expired
-
1972
- 1972-06-07 IE IE794/72A patent/IE37695B1/en unknown
- 1972-06-30 ZA ZA724529A patent/ZA724529B/en unknown
- 1972-08-28 AU AU46037/72A patent/AU473400B2/en not_active Expired
- 1972-09-26 BR BR006670/72A patent/BR7206670D0/en unknown
- 1972-09-26 DE DE19722247120 patent/DE2247120A1/en active Pending
- 1972-09-28 NL NL7213173A patent/NL7213173A/xx not_active Application Discontinuation
- 1972-09-28 FR FR7234308A patent/FR2154669B1/fr not_active Expired
- 1972-09-28 CH CH1418472A patent/CH559478A5/xx not_active IP Right Cessation
- 1972-09-29 JP JP47097913A patent/JPS4843862A/ja active Pending
- 1972-09-30 ES ES407161A patent/ES407161A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH559478A5 (en) | 1975-02-28 |
| FR2154669A1 (en) | 1973-05-11 |
| FR2154669B1 (en) | 1980-03-07 |
| AU4603772A (en) | 1974-03-07 |
| GB1357030A (en) | 1974-06-19 |
| ZA724529B (en) | 1973-03-28 |
| NL7213173A (en) | 1973-04-03 |
| AU473400B2 (en) | 1976-06-24 |
| IE37695B1 (en) | 1977-09-28 |
| ES407161A1 (en) | 1975-11-16 |
| BR7206670D0 (en) | 1973-08-30 |
| DE2247120A1 (en) | 1973-04-05 |
| JPS4843862A (en) | 1973-06-25 |
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