EP0249356A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Data card with inductive signal transfer device
Assignee: Toshiba Corp
•
Filing: 1987-05-26
•
Granted: —
•
Expires: 2007-05-26
Abstract
Abstract A data card which can be resiliently flexed to a degree. The data card includes a laminated structure member (10) having at least a synthetic resin protective layer (11, 13) and a ferromagnetic material layer (12), an electric circuit device (14a, 14b) embedded in the laminated structure member (10) and an electro-magnetic transducer (15) having a pair of coils (16, 17) which are formed on the laminated structure member (10). The pair of coils (16, 17) are coupled to the electric circuit device (14a, 14b) for generating magnetic fluxes (16m, 17m) of opposite directions with each other according to information signal applied from the electric circuit device (14a, 14b). Or the pair of coils (16, 17) are provided for receiving magnetic fluxes (23m, 24m) of opposite directions with each other and coupled to the electric circuit device (14a, 14b) for applying an electric signal generated by the magnetic fluxes (23m, 24m) of opposite directions thereto.
Inventors
- 👤 Toshihiko Ohta
- 👤 Kazuyoshi Fuse
- 👤 Kunio Ohmi
- 👤 Toshiaki Sato
- 👤 Masayuki Shinozaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07749; G06K19/07773; G06K19/07777; G06K19/07779; G06K19/07783; G06K7/00; G06K7/10; G06K7/10009; G06K7/10316; G06K7/10336
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
113 words
A data card which can be resiliently flexed to a degree comprising: a laminated structure member (10) having at least a synthetic resin protective layer (11, 13) and a ferromagnetic material (12); and an electric circuit device (14a, 14b) embedded in the laminated structure member (10), characterized in that the data card further comprising: an electro-magnetic transducer (15) having a pair of coils (16, 17) which are formed on the laminated structure member (10), the pair of coils (16, 17) being coupled to the electric circuit device (14a, 14b) for generating magnetic fluxes (16m, 17m) of opposite directions with each other according to information signal applied from the electric circuit device (14a, 14b).
Claim 2
Dependent Claim
113 words
A data card which can be resiliently flexed to a degree comprising: a laminated structure member (10) having at least a synthetic resin protective layer (11, 13) and a ferromagnetic material (12); and an electric circuit device (14a, 14b) embedded in the laminated structure member (10), characterized in that the data card further comprising: an electro-magnetic transducer (15) having a pair of coils (16, 17) which are formed on the laminated structure member (10), the pair of coils (16, 17) being coupled to the electric circuit device (14a, 14b) for generating magnetic fluxes (16m, 17m) of opposite directions with each other according to information signal applied from the electric circuit device (14a, 14b).
Claim 3
Dependent Claim
117 words
A data card which can be resiliently flexed to a degree comprising: a laminated structure member (10) having at least a synthetic resin protective layer (11, 13) and a ferromagnetic material layer (12); and an electric circuit device (14a, 14b) embedded in the laminated structure member (10), characterized in that the data card further comprising: an electro-magnetic transducer (15) having a pair of coils which are formed on the laminated structure member, the pair of coils (16, 17) being provided for receiving magnetic fluxes (23m, 24m) of opposite directions with each other and coupled to the electric circuit device (14a, 14b) for applying an electric signal generated by the magnetic fluxes (23m, 24m) of opposite directions thereto.
Claim 4
Dependent Claim
117 words
A data card which can be resiliently flexed to a degree comprising: a laminated structure member (10) having at least a synthetic resin protective layer (11, 13) and a ferromagnetic material layer (12); and an electric circuit device (14a, 14b) embedded in the laminated structure member (10), characterized in that the data card further comprising: an electro-magnetic transducer (15) having a pair of coils which are formed on the laminated structure member, the pair of coils (16, 17) being provided for receiving magnetic fluxes (23m, 24m) of opposite directions with each other and coupled to the electric circuit device (14a, 14b) for applying an electric signal generated by the magnetic fluxes (23m, 24m) of opposite directions thereto.
Claim 5
Dependent Claim
22 words
The data card of claim 1 or 2 wherein the pair of coils (16, 17) are connected in series with each other.
Claim 6
Dependent Claim
21 words
The data card of claim 3 wherein the pair of coils (16, 17) are each formed in a plural turn configulation.
Claim 7
Dependent Claim
61 words
The data card of claim 4 wherein the pair of coils (16, 17) are wound in the same direction and each has an inner end (16a, 17a) and an outer end (16b, 17b), and wherein one of the coils (16, 17) is connected at its outer end (16b, 17b) to the outer end (17b, 16b) of the other coil (17, 16).
Claim 8
Dependent Claim
34 words
The data card of claim 4 wherein the pair of coils (16, 17) are wound in the opposite direction and each has an inner end (16a, 17a) and an outer end (16b, 17b), and
Claim 9
Dependent Claim
21 words
The data card of claim 3, wherein the pair of coils (16, 17) are each formed in a single turn configuration.
Claim 10
Dependent Claim
59 words
The data card of claim 7, wherein the pair of coils (16, 17) have each one end (16a, 17a) in one direction and other end (16b, 17b) in the other direction, and wherein one of the coils (16, 17) is connected at its one end (16a, 17a) to the other end (16b, 17b) of the other coil (17, 16).
Claim 11
Dependent Claim
22 words
The data card of claim 1 or 2 wherein the pair of coils (16, 17) are connected in parallel with each other.
Claim 12
Dependent Claim
61 words
The data card of claim 9, wherein the pair of coils (16, 17) are wound in the same direction and each has an inner end (16a, 17a) and an outer end (16b, 17b), and wherein one of the coils (16, 17) is connected at its outer end (16b, 17b) to the inner end (17a, 16a) of the other coil (17, 16).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.