FR2462061A1 - Procede d'enregistrement et de reproduction d'informations numeriques - Google Patents
Procede d'enregistrement et de reproduction d'informations numeriques Download PDFInfo
- Publication number
- FR2462061A1 FR2462061A1 FR7918956A FR7918956A FR2462061A1 FR 2462061 A1 FR2462061 A1 FR 2462061A1 FR 7918956 A FR7918956 A FR 7918956A FR 7918956 A FR7918956 A FR 7918956A FR 2462061 A1 FR2462061 A1 FR 2462061A1
- Authority
- FR
- France
- Prior art keywords
- frequency
- signal
- recorded
- recording
- interval
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 title abstract 2
- 238000013500 data storage Methods 0.000 title 1
- 230000033764 rhythmic process Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000007493 shaping process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7918956A FR2462061A1 (fr) | 1979-07-23 | 1979-07-23 | Procede d'enregistrement et de reproduction d'informations numeriques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7918956A FR2462061A1 (fr) | 1979-07-23 | 1979-07-23 | Procede d'enregistrement et de reproduction d'informations numeriques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2462061A1 true FR2462061A1 (fr) | 1981-02-06 |
| FR2462061B1 FR2462061B1 (enExample) | 1983-10-07 |
Family
ID=9228176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7918956A Granted FR2462061A1 (fr) | 1979-07-23 | 1979-07-23 | Procede d'enregistrement et de reproduction d'informations numeriques |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2462061A1 (enExample) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3427605A (en) * | 1965-10-08 | 1969-02-11 | Potter Instrument Co Inc | Apparatus and method for recording control code between data blocks |
-
1979
- 1979-07-23 FR FR7918956A patent/FR2462061A1/fr active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3427605A (en) * | 1965-10-08 | 1969-02-11 | Potter Instrument Co Inc | Apparatus and method for recording control code between data blocks |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/71 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2462061B1 (enExample) | 1983-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |