Non-contact type information card and communication system

Claim 2

A non-contact type information card comprising: data transmitting/receiving means for transmitting data to and receiving it from a plurality of external units in a non-contact manner; data processing means for processing data based on a command signal which is received by said data transmitting/receiving means and includes first identification information identifying any one of the external units and third identification information identifying the contents of a process; storing means for storing the first and third identification information; determining means for determining, when said data transmitting/receiving means receives a new command signal, whether or not first and third identification information of the new command signal agrees with the first and third identification information of the old command signal stored in said storing means; stopping means for stopping, as soon as said determining means determines that the first and third identification information of the new command signal agrees with the first and third identification information of the old command signal, the operation of said data processing means until said data transmitting/receiving means receives a next command signal; and updating meams for updating, when said determining means determines that the first and third identification information of the new command signal does not agree with the first and third identification information of the old command signal, the contents of said storing means to the first and third identification information of the new command signal.

Claim 3

A non-contact type information card comprising: data transmitting/receiving means for transmitting data to and receiving it from a plurality of external units in a non-contact manner; data processing means for processing data based on a command signal which is received by said data transmitting/receiving means and includes second identification information identifying process time and third identification information identifying the contents of a process; storing means for storing the second and third identification information; determining means for determining, when said data transmitting/receiving means receives a new command signal, whether or not second and third identification information of the new command signal agrees with the second and third identification information of the old command signal stored in said storing means; stopping means for stopping, as soon as said determining means determines that the second and third identification information of the new command signal agrees with the second and third identification information of the old command signal, the operation of said data processing means until said data transmitting/receiving means receives a next command signal; and updating means for updating, when said determining means determines that the second and third identification information of the new command signal does not agree with the second and third identification information of the old command signal, the contents of said storing means to the second and third identification information of the new command signal.

Claim 4

A non-contact type information card comprising: data transmitting/receiving means for transmitting data to and receiving it from a plurality of external units in a non-contact manner; data processing means for processing data based on a command signal which is received by-said data transmitting/receiving means and includes first identification information identifying any one of the external units, second identification information identifying process time and third identification information identifying the contents of a process; storing means for storing the first, second and third identification information; determining means for determining, when said data transmitting/receiving means receives a new command signal, whether or not first, second and third identification information of the new command signal agrees with the first, second and third identification information of the old command signal stored in said storing means; stopping means for stopping, as soon as said determining means determines that the first, second and third identification information of the new command signal agrees with the first, second and third identification information of the old command signal, the operation of said data processing means until said data transmitting/receiving means receives a next command signal; and updating means for updating, when said determining means determines that the first, second and third identification information of the new command signal does not agree with the first, second and third identification information of the old command signal, the contents of said storing means to the first, second and third identification information of the new command signal.

Claim 5

A communication system comprising: a plurality of external units that are installed in different locations and have signal-transmissible zones not interfering with each other and that transmit at predetermined time intervals command signals, each including a time code and a place code identifying a location in which the external unit is installed; and a non-contact type information card for receiving the command signals from said plurality of external units so as to perform a data process based on the command signals; when said non-contact type information card receives the command signal from any one of said external units within the signal-transmissible zone of this external unit, the time and place codes of the command signal being compared with time and place codes of a command signal received previously, and when the new time and place codes agree with the old time and place codes, the data process being stopped until a next command signal is received.

Claim 6

A communication system as claimed in claim 5 wherein said plurality of external units are disposed at the entrance gate and exit gate of a special area.

Claim 7

A communication system comprising: a plurality of external units that are installed in different locations and have signal-transmissible zones not interfering with each other and that transmit at predetermined time intervals command signals, each including a place code identifying a location in which the external unit is installed and a process code identifying the contents of a data process; and a non-contact type information card for receiving the command signals from said plurality of external units so as to perform a data process based on the command signals; when said non-contact type information card receives the command signal from any one of said external units within the signal-transmissible zone of this external unit, the place and process codes of the command signal being compared with place and process codes of a command signal received previously, and when the new place and process codes agree with the old place and process codes, the data process being stopped until a next command signal is received.

Claim 8

A communication system as claimed in claim 7 wherein said plurality of external units are disposed at the entrance gate and exit gate of a special area.

Claim 9

A communication system comprising: a plurality of external units that are installed in different locations and have signal-transmissible zones not interfering with each other and that transmit at predetermined time intervals command signals, each including a time code and a process code identifying the contents of a data process; and a non-contact type information card for receiving the command signals from said plurality of external units so as to perform a data process based on the command signals; when said non-contact type information card receives the command signal from any one of said external units within the signal-transmissible zone of this external unit, the time and process codes of the command signal being compared with time and process codes of a command signal received previously, and when the new time and process codes agree with the old time and process codes, the data process being stopped until a next command signal is received.

Claim 10

A communication system as claimed in claim 9 wherein said plurality of external units are disposed at the entrance gate and exit gate of a special area.

Claim 11

A communication system comprising: a plurality of external units that are installed in different locations and have signal-transmissible zones not interfering with each other and that transmit at predetermined time intervals command signals, each including a time code, a place code identifying a location in which the external unit is installed and a process code identifying the contents of a data process; and a non-contact type information card for receiving the command signals from said plurality of external units so as to perform a data process based on the command signals; when said non-contact type information card receives the command signal from any one of said external units within the signal-transmissible zone of this external unit, the time, place and process codes of the command signal being compared with time, place and process codes of a command signal received previously, and when the new time, place and process codes agree with the old time, place and process codes, the data process being stopped until a next command signal is received.

Claim 12

A communication system as claimed in claim 11 wherein said plurality of external units are disposed at the entrance gate and exit gate of a special area.