CH506840A - Vorrichtung zum Feststellen von Diskontinuitäten in einem Medium - Google Patents
Vorrichtung zum Feststellen von Diskontinuitäten in einem MediumInfo
- Publication number
- CH506840A CH506840A CH615969A CH615969A CH506840A CH 506840 A CH506840 A CH 506840A CH 615969 A CH615969 A CH 615969A CH 615969 A CH615969 A CH 615969A CH 506840 A CH506840 A CH 506840A
- Authority
- CH
- Switzerland
- Prior art keywords
- discontinuities
- detection
- medium
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/081—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes electrostatic, e.g. by detecting the charge of capacitance between electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72344268A | 1968-04-23 | 1968-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH506840A true CH506840A (de) | 1971-04-30 |
Family
ID=24906288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH615969A CH506840A (de) | 1968-04-23 | 1969-04-23 | Vorrichtung zum Feststellen von Diskontinuitäten in einem Medium |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3566084A (de) |
| JP (1) | JPS4949253B1 (de) |
| AT (1) | AT293766B (de) |
| BE (1) | BE731970A (de) |
| BR (1) | BR6908289D0 (de) |
| CH (1) | CH506840A (de) |
| DE (1) | DE1920697A1 (de) |
| ES (1) | ES366282A1 (de) |
| FR (1) | FR2006789A1 (de) |
| GB (1) | GB1261093A (de) |
| NL (1) | NL6906173A (de) |
| SE (1) | SE373965B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940574A (en) * | 1973-12-20 | 1976-02-24 | Xerox Corporation | Reproduction of information from information-bearing discs |
| FR2469755A1 (fr) * | 1979-11-14 | 1981-05-22 | Thomson Csf | Support d'information portatif, dispositif et procede pour l'enregistrement et la lecture d'informations sur un tel support |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1804364A (en) * | 1930-07-12 | 1931-05-05 | Pacent Electric Company Inc | Pickup |
| US1927548A (en) * | 1932-04-13 | 1933-09-19 | John J Hopfield | Charging rod |
| US2526642A (en) * | 1949-06-30 | 1950-10-24 | Campo Angelo R Del | Electret-type generator and motor |
| US2941718A (en) * | 1953-10-29 | 1960-06-21 | Curtiss Wright Corp | Punched record translator |
| US3043505A (en) * | 1958-12-19 | 1962-07-10 | Ibm | Data sensing circuit |
| US3132242A (en) * | 1960-12-23 | 1964-05-05 | Ibm | Record sensing apparatus |
-
1968
- 1968-04-23 US US723442A patent/US3566084A/en not_active Expired - Lifetime
-
1969
- 1969-04-21 ES ES366282A patent/ES366282A1/es not_active Expired
- 1969-04-22 JP JP44031234A patent/JPS4949253B1/ja active Pending
- 1969-04-22 NL NL6906173A patent/NL6906173A/xx unknown
- 1969-04-22 SE SE6905688A patent/SE373965B/xx unknown
- 1969-04-23 FR FR6912905A patent/FR2006789A1/fr not_active Withdrawn
- 1969-04-23 GB GB20710/69A patent/GB1261093A/en not_active Expired
- 1969-04-23 BR BR208289/69A patent/BR6908289D0/pt unknown
- 1969-04-23 CH CH615969A patent/CH506840A/de not_active IP Right Cessation
- 1969-04-23 DE DE19691920697 patent/DE1920697A1/de active Pending
- 1969-04-23 BE BE731970D patent/BE731970A/xx unknown
- 1969-04-23 AT AT393269A patent/AT293766B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1261093A (en) | 1972-01-19 |
| JPS4949253B1 (de) | 1974-12-26 |
| FR2006789A1 (de) | 1970-01-02 |
| DE1920697A1 (de) | 1970-02-05 |
| BR6908289D0 (pt) | 1973-02-22 |
| BE731970A (de) | 1969-10-01 |
| ES366282A1 (es) | 1971-04-01 |
| US3566084A (en) | 1971-02-23 |
| NL6906173A (de) | 1969-10-27 |
| AT293766B (de) | 1971-10-25 |
| SE373965B (de) | 1975-02-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |