US5478995A — Data carrier with disc shaped carrier structure

Claim 1

Independent Claim 183 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device, which comprises an encoder/decoder and a slot, and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier by said encoder/decoder when the data carrier is inserted into said slot of the coin handling device, the data carrier comprising: a carrier base structure having the form of a disk adapted to be handled in the manner of a coin by said coin handling device; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit for receiving data from the control station and transmitting data to the control station; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; and a solar cell unit for providing power to the liquid crystal display and to the means for making visible the data on the liquid crystal display.

Claim 2

Dependent Claim 183 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device, which comprises an encoder/decoder and a slot, and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier by said encoder/decoder when the data carrier is inserted into said slot of the coin handling device, the data carrier comprising: a carrier base structure having the form of a disk adapted to be handled in the manner of a coin by said coin handling device; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit for receiving data from the control station and transmitting data to the control station; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; and a solar cell unit for providing power to the liquid crystal display and to the means for making visible the data on the liquid crystal display.

Claim 3

Dependent Claim 32 words

A data carrier according to claim 1, wherein the central processing unit for making visible the data comprises a microprocessor, the microprocessor further comprising means for controlling operations of the data carrier.

Claim 4

Dependent Claim 36 words

A data carrier according to claim 1, wherein the two sides of the disk are covered with protective films each protective film including window in the region of said liquid crystal display and said solar cell.

Claim 5

Dependent Claim 25 words

A data carrier according to claim 1, wherein the sending-receiving unit is designed for radio transmission with a carrier frequency field up to 250 kHz.

Claim 6

Dependent Claim 15 words

A data carrier according to claim 4, wherein the sending-receiving unit has a magnetic antenna.

Claim 7

Dependent Claim 106 words

A data carrier according to claim 5, further comprising; a housing holding the disk-shaped carrier base structure, the housing being provided with an antenna extension connected to a bare contact of said antenna, a spool mounted in the housing so that it can turn, under spring tension, a cord wound on the spool, that can be pulled out of the housing against spring force, the cord having a first end projecting out peripherally of the housing and a second end fixed on the spool, a first fastening element provided on the projecting first end of the cord, and a second fastening element mounted on the housing.

Claim 8

Dependent Claim 22 words

A data carrier according to claim 6, wherein the housing comprises a first and a second shell turnably connected to each other.

Claim 9

Dependent Claim 35 words

A data carrier according to claim 7, wherein the first shell comprises an outside having a recess, a watch being provided in the recess and having a watch movement, display elements, and a watch crystal.

Claim 10

Dependent Claim 17 words

A data carrier according to claim 6, wherein the first fastening element is a spreadable key ring.

Claim 11

Dependent Claim 29 words

A data carrier according to claim 9, wherein the projecting first end of the cord is fastened to an eye, and the key ring is placed in the eye.

Claim 12

Dependent Claim 35 words

A data carrier according to claim 9, wherein the key ring is made of plastic and is provided with a first and a second end comprising locking elements that can be connected to each other.

Claim 13

Dependent Claim 18 words

A data carrier according to claim 1, further comprising a recess for receiving a picture of the owner.

Claim 14

Dependent Claim 111 words

A data carrier according to claim 1, further comprising; a housing having a first and a second shell turnably connected to each other, said second shell comprising an outside having a recess holding the disk-shaped carrier base structure, a spool mounted in the housing so that it can turn, under spring tension, a cord wound on the spool, that can be pulled out of the housing against spring force, the cord having a first end projecting out peripherally of the housing and a second end fixed on the spool, a first fastening element provided on the projecting first end of the cord, and a second fastening element mounted on the housing.

Claim 15

Dependent Claim 241 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device, which comprises an encoder/decoder and a slot, and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier by said encoder/decoder when the data carrier is inserted into said slot the coin handling device, the data carrier comprising: a carrier base structure having the form of a disk adapted to be handled in the manner of a coin by said coin handling device; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit for receiving data from the control station and transmitting data to the control station, said sending-receiving unit being designed for radio transmission with a carrier frequency field up to 250 kHz, and having a magnetic antenna; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; and a solar cell unit for providing power to the liquid crystal display and to the central processing unit for making visible the data on the liquid crystal display; the liquid crystal display and the solar cell unit being arranged on a first side of the disk-shaped base structure, and the magnetic antenna being arranged on the second side of the disk-shaped base structure.

Claim 16

Dependent Claim 241 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device, which comprises an encoder/decoder and a slot, and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier by said encoder/decoder when the data carrier is inserted into said slot the coin handling device, the data carrier comprising: a carrier base structure having the form of a disk adapted to be handled in the manner of a coin by said coin handling device; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit for receiving data from the control station and transmitting data to the control station, said sending-receiving unit being designed for radio transmission with a carrier frequency field up to 250 kHz, and having a magnetic antenna; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; and a solar cell unit for providing power to the liquid crystal display and to the central processing unit for making visible the data on the liquid crystal display; the liquid crystal display and the solar cell unit being arranged on a first side of the disk-shaped base structure, and the magnetic antenna being arranged on the second side of the disk-shaped base structure.

Claim 17

Dependent Claim 31 words

A data carrier according to claim 14, wherein the disk-shaped base structure is made of plastic, the magnetic antenna being printed helically on the second side of the disk-shaped base structure.

Claim 18

Dependent Claim 23 words

A data carrier according to claim 14, wherein the circumference of said disk is enclosed by a metallic ring interrupted by a slot.

Claim 19

Dependent Claim 207 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier when the data carrier is presented to the control station, the data carrier comprising; a carrier base structure having the form of a disk adapted to be handled in the manner of a coin, and being made of plastic, the circumference of said disk-shaped base structure being enclosed by a metallic ring interrupted by a slot; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit designed for radio transmission with a carrier frequency field up to 250 kHz for receiving data from the control station and transmitting data to the control station, the sending-receiving unit having magnetic antenna; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; and a solar cell unit for providing power to the liquid crystal display and to the central processing unit for making visible the data on the liquid crystal display.

Claim 20

Dependent Claim 207 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier when the data carrier is presented to the control station, the data carrier comprising; a carrier base structure having the form of a disk adapted to be handled in the manner of a coin, and being made of plastic, the circumference of said disk-shaped base structure being enclosed by a metallic ring interrupted by a slot; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit designed for radio transmission with a carrier frequency field up to 250 kHz for receiving data from the control station and transmitting data to the control station, the sending-receiving unit having magnetic antenna; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; and a solar cell unit for providing power to the liquid crystal display and to the central processing unit for making visible the data on the liquid crystal display.

Claim 21

Dependent Claim 212 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier when the data carrier is presented to the control station, the data carrier comprising; a carrier base structure having a form of a disk adapted to be handled in the manner of a coin; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit for receiving data from the control station and transmitting data to the control station; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; a solar cell unit for providing power to the liquid crystal display and to the central processing unit for making visible the data on liquid crystal display, and; a ring surrounding the disk-shaped base structure and provided with a U-hook, the first shank of which is rigidly connected to the ring and the second shank of which has a lock on the end that can be connected with a corresponding locking element in the ring.

Claim 22

Dependent Claim 212 words

A data carrier for a non-contact data communication with a control station, the control station being provided with a coin handling device and controlling a passage to an area or space by checking and/or changing data of authorization of passage on the data carrier when the data carrier is presented to the control station, the data carrier comprising; a carrier base structure having a form of a disk adapted to be handled in the manner of a coin; a non-volatile, electrically erasable and programmable memory designed to store the data of authorization of passage; a data sending-receiving unit for receiving data from the control station and transmitting data to the control station; a liquid crystal display for displaying data; a central processing unit for making visible on the liquid crystal display the data stored in the memory; a solar cell unit for providing power to the liquid crystal display and to the central processing unit for making visible the data on liquid crystal display, and; a ring surrounding the disk-shaped base structure and provided with a U-hook, the first shank of which is rigidly connected to the ring and the second shank of which has a lock on the end that can be connected with a corresponding locking element in the ring.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1998-12-25	1999-06-26	1999-12-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2002-12-25	2003-06-26	2003-12-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2006-12-25	2007-06-26	2007-12-26	$7700.00	Window Closed / Lapsed

Data carrier with disc shaped carrier structure

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