CH557072A - Magnetische messfuehlereinrichtung zur ermittlung der polaritaet von magnetfeldern von punktmagneten auf einer karte. - Google Patents
Magnetische messfuehlereinrichtung zur ermittlung der polaritaet von magnetfeldern von punktmagneten auf einer karte.Info
- Publication number
- CH557072A CH557072A CH734172A CH734172A CH557072A CH 557072 A CH557072 A CH 557072A CH 734172 A CH734172 A CH 734172A CH 734172 A CH734172 A CH 734172A CH 557072 A CH557072 A CH 557072A
- Authority
- CH
- Switzerland
- Prior art keywords
- polarity
- map
- determining
- sensor device
- magnetic
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06K7/082—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 using inductive or magnetic sensors
- G06K7/087—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 using inductive or magnetic sensors flux-sensitive, e.g. magnetic, detectors
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Measuring Magnetic Variables (AREA)
- Geophysics And Detection Of Objects (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14397971A | 1971-05-17 | 1971-05-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH557072A true CH557072A (de) | 1974-12-13 |
Family
ID=22506534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH734172A CH557072A (de) | 1971-05-17 | 1972-05-17 | Magnetische messfuehlereinrichtung zur ermittlung der polaritaet von magnetfeldern von punktmagneten auf einer karte. |
Country Status (9)
Country | Link |
---|---|
US (1) | US3717749A (de) |
JP (1) | JPS5529485B1 (de) |
CA (1) | CA962768A (de) |
CH (1) | CH557072A (de) |
DE (1) | DE2223866C3 (de) |
FR (1) | FR2137953B1 (de) |
GB (1) | GB1378707A (de) |
IT (1) | IT961179B (de) |
NL (1) | NL174880C (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2385154A1 (fr) * | 1977-03-25 | 1978-10-20 | Metalimphy | Procede et dispositif d'identification d'etiquettes codees |
US7025265B2 (en) * | 2001-04-10 | 2006-04-11 | Excel Precision Corp. | Information card system |
US8674894B2 (en) * | 2008-07-15 | 2014-03-18 | The Charles Machine Works, Inc. | Antenna design |
US9474465B2 (en) | 2012-06-27 | 2016-10-25 | Ascension Technology Corporation | System and method for magnetic position tracking |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2590091A (en) * | 1946-04-03 | 1952-03-25 | Remington Rand Inc | Magnetic process control |
US2559505A (en) * | 1948-02-03 | 1951-07-03 | Rca Corp | Art of making duplicate magnetic phonograph records |
CH405426A (de) * | 1961-12-21 | 1966-01-15 | Ibm | Magnetkopf zum Aufzeichnen und Ablesen von digitalen Signalen |
GB988964A (en) * | 1963-03-15 | 1965-04-14 | Thompson Ramo Wooldridge Inc | Magnetic field detector |
US3521258A (en) * | 1963-06-07 | 1970-07-21 | Westinghouse Electric Corp | Transducer with thin magnetic strip,drive winding and sense winding |
US3419710A (en) * | 1965-04-02 | 1968-12-31 | Mkc Electronics Corp | Magnetic card reader having sequential indicia sensing means |
US3430200A (en) * | 1967-06-30 | 1969-02-25 | Walter W Barney | Validator apparatus for magnetic credit cards and the like |
US3626396A (en) * | 1968-10-03 | 1971-12-07 | Ibm | Thin-film magnetic recording head |
-
1971
- 1971-05-17 US US00143979A patent/US3717749A/en not_active Expired - Lifetime
-
1972
- 1972-05-10 GB GB2170772A patent/GB1378707A/en not_active Expired
- 1972-05-16 DE DE2223866A patent/DE2223866C3/de not_active Expired
- 1972-05-16 CA CA142,265A patent/CA962768A/en not_active Expired
- 1972-05-16 FR FR7217461A patent/FR2137953B1/fr not_active Expired
- 1972-05-17 NL NLAANVRAGE7206624,A patent/NL174880C/xx not_active IP Right Cessation
- 1972-05-17 IT IT24462/72A patent/IT961179B/it active
- 1972-05-17 CH CH734172A patent/CH557072A/de not_active IP Right Cessation
- 1972-05-17 JP JP4948772A patent/JPS5529485B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3717749A (en) | 1973-02-20 |
DE2223866C3 (de) | 1981-11-05 |
CA962768A (en) | 1975-02-11 |
NL7206624A (de) | 1972-11-21 |
NL174880B (nl) | 1984-03-16 |
DE2223866B2 (de) | 1981-02-05 |
GB1378707A (en) | 1974-12-27 |
JPS5529485B1 (de) | 1980-08-04 |
FR2137953B1 (de) | 1976-08-13 |
DE2223866A1 (de) | 1972-12-07 |
FR2137953A1 (de) | 1972-12-29 |
IT961179B (it) | 1973-12-10 |
NL174880C (nl) | 1984-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PFA | Name/firm changed |
Owner name: FIGGIE INTERNATIONAL INC. |
|
PL | Patent ceased |