FR1565752A - - Google Patents
Info
- Publication number
- FR1565752A FR1565752A FR1565752DA FR1565752A FR 1565752 A FR1565752 A FR 1565752A FR 1565752D A FR1565752D A FR 1565752DA FR 1565752 A FR1565752 A FR 1565752A
- Authority
- FR
- France
- 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.)
- Expired
Links
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
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62931767A | 1967-04-07 | 1967-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1565752A true FR1565752A (en:Method) | 1969-05-02 |
Family
ID=24522483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1565752D Expired FR1565752A (en:Method) | 1967-04-07 | 1968-04-05 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3551608A (en:Method) |
| AT (1) | AT302684B (en:Method) |
| BE (1) | BE713360A (en:Method) |
| CH (1) | CH486093A (en:Method) |
| DE (1) | DE1772155C2 (en:Method) |
| FR (1) | FR1565752A (en:Method) |
| GB (1) | GB1220103A (en:Method) |
| NL (1) | NL6804934A (en:Method) |
| SE (1) | SE336923B (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3805284A (en) * | 1972-09-18 | 1974-04-16 | Burroughs Corp | Digital data copy duplication method and apparatus utilizing bit to bit data verification |
| US4040099A (en) * | 1975-07-30 | 1977-08-02 | Cook Laboratories, Inc. | Method and apparatus for preparing recorded program material to render detectable unauthorized magnetic tape duplications, and method and apparatus for detecting such duplications |
| DE3150061A1 (de) * | 1981-12-17 | 1983-06-23 | Polygram Gmbh, 2000 Hamburg | Verfahren zur ermittlung von stoerimpulsen bei auf tontraegern aufgezeichneten signalen |
| US4746991A (en) * | 1982-01-12 | 1988-05-24 | Discovision Associates | Recording characteristic evaluation of a recording medium with a time sequence of test signals |
| WO1983004329A1 (en) * | 1982-06-04 | 1983-12-08 | Sony Corporation | Optical disc reproducer |
| US4638378A (en) * | 1984-06-12 | 1987-01-20 | Arrigo Zanessi | Fidelity control during operation of duplicator machines |
| US4823210A (en) * | 1984-08-13 | 1989-04-18 | Verbatim Corporation | Copy protected disk |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2774056A (en) * | 1954-04-12 | 1956-12-11 | Loew S Inc | Comparator device |
-
1967
- 1967-04-07 US US629317A patent/US3551608A/en not_active Expired - Lifetime
-
1968
- 1968-04-04 CH CH523068A patent/CH486093A/fr not_active IP Right Cessation
- 1968-04-05 DE DE1772155A patent/DE1772155C2/de not_active Expired
- 1968-04-05 SE SE04578/68A patent/SE336923B/xx unknown
- 1968-04-05 GB GB06452/68A patent/GB1220103A/en not_active Expired
- 1968-04-05 FR FR1565752D patent/FR1565752A/fr not_active Expired
- 1968-04-08 AT AT344868A patent/AT302684B/de not_active IP Right Cessation
- 1968-04-08 NL NL6804934A patent/NL6804934A/xx unknown
- 1968-04-08 BE BE713360D patent/BE713360A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1220103A (en) | 1971-01-20 |
| CH486093A (fr) | 1970-02-15 |
| NL6804934A (en:Method) | 1968-10-08 |
| DE1772155C2 (de) | 1973-01-04 |
| AT302684B (de) | 1972-10-25 |
| US3551608A (en) | 1970-12-29 |
| DE1772155B1 (de) | 1972-06-08 |
| BE713360A (en:Method) | 1968-08-16 |
| SE336923B (en:Method) | 1971-07-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |