JPH05342128A - I/o card - Google Patents

Abstract

PURPOSE:To improve durability, shock resistance, electromagnetic noise resistance and portability, and also, to reduce the cost by structuring integrally an IC card part and a circuit interface part, and containing them in the same housing. CONSTITUTION:An IC card 1-1 and a circuit interface 1-2 are structured integrally. A MODEM IC card 2-1 contains an I/O bus interface 2-3 for connecting a main bus 2-2 and a MODEM I/O card, a serial I/O 2-4 for converting data from the bus to serial data, and converting data from a circuit to parallel data, and a MODEM 2-5 for modulating a digital signal to an analog signal, and demodulating the analog signal to the digital signal. A circuit interface 2-7 is an interface to be connected to a telephone circuit 2-6. At the time of mounting the card to a personal computer, the IC card 1-1 and the circuit interface 1-2 are inserted into the inside of the personal computer main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an I / O card,
In particular, it relates to an integrated structure of the IC card unit and the line interface unit.

[0002]

2. Description of the Related Art A conventional modem I / O card is an IC card 6-1 having a receptacle 6-2 as shown in FIG.
It has a line interface 6-4 having a plug 6-3 that can be engaged with the receptacle 6-2, and the IC card 6-1 and the line interface 6-4 have separate structures.

[0003]

In this conventional I / O card, since the line interface section is connected to the IC card section by a cable, the connection section is inferior in durability, is weak against impact, and the line interface section is fixed. However, there is a problem in that the electrical characteristics are inferior and the electromagnetic noise is weak because it is unstable.

Further, since the IC card section and the line interface section are separated, the IC card section, the two boards of the line interface section and the chassis, and the IC card for connecting the IC card section and the line interface section are connected. There is a problem that the cost becomes high because a receptacle is required for the part and a plug which can be fitted with the receptacle is required for the line interface part.

Further, since the IC card section and the line interface section are separated, there is a problem that portability is poor.

[0006]

In the I / O card of the present invention, the IC card part and the line interface part are integrated into one structure and can be housed in the same housing.

[0007]

The present invention will be described below with reference to the drawings.

FIG. 1 is a structural diagram of an embodiment of a modem I / O card of the present invention, and FIG. 2 is a configuration diagram of the modem I / O card. This modem I / O card incorporates an I / O bus interface 2-3, a serial I / O 2-4, and a modem 2-5 as shown in FIG. 2, and as shown in FIG. 1, an IC card 1-1. The line interface 1-2 and the line interface 1-2 have an integrated structure. The modem IC card 2-1 and the main bus 2-2
And an I / O bus interface 2-3 for connecting the modem I / O card and a serial I / O2 for converting data from the bus into serial data or converting data from the line into parallel data. -4. It incorporates MODEM2-5 which modulates digital signal to analog signal and demodulates analog signal to digital signal.
The line interface 2-7 transmits the data from the MODEM 2-5 to the telephone line 2-6, and the telephone line 2-6.
It has the functions necessary for transmitting the data from the MODEM 2-5 to the MODEM 2-5 and the interface necessary for connecting with the telephone line 2-6. When mounting this modem I / O card on a personal computer, IC card 1-
1 and line interface 1-2 are inserted into the body of the personal computer, or IC card 1
Only -1 is inserted inside the personal computer main body, and the line interface 1-2 is added outside the personal computer main body.

FIG. 3 is a block diagram of an embodiment of the LAN I / O card of the present invention. This LAN I / O card incorporates a LAN IC card 3-1 with an I / O bus interface 3-3 for connecting to the main body bus 3-2, a serial I / O interface 3-4 and a LAN interface. , Line interface 3-7 to LA
Data from the N interface 3-5 is transferred to the LAN (Loc
al Area Network: a corporate / regional information communication network), and has functions necessary for transmitting data from the LAN to the LAN interface 3-5 and an interface necessary for connecting to the LAN.

FIG. 4 is a block diagram of an embodiment of the facsimile I / O card of the present invention. This facsimile I / O
The card is a facsimile IC card 4-1, an I / O bus interface 4-3, a data compression / decompression unit 4-4,
The procedure conversion unit 4-5 and the MODEM 4-8 are built in, and the line interface 4-7 transmits the data from the MODEM 4-8 to the telephone line 4-6 and the data from the telephone line 4-6 to the MODEM 4-8. It has the functions necessary for transmitting to the telephone line and the interface necessary for connecting to the telephone line 4-6. I / O for connecting the main unit data to the main unit bus 4-2 and this facsimile I / O card
Through the bus interface 4-3, the data compression / decompression unit 4-4 converts the serial facsimile code, and the procedure conversion unit 4-5 modifies the MOD based on the facsimile communication procedure.
Transfer to EM4-8. The MODEM 4-8 modulates the data and sends it to the telephone line 4-6 via the line interface 4-7. When receiving, MODEM4
-8 is a telephone line 4-6 to a line interface 4-7
Data of the analog signal that has passed through is received, the procedure conversion unit 4-5 receives the data based on the facsimile communication procedure, and the data compression / decompression unit 4-4 decodes the facsimile code to make parallel binary data. Then, the data is transferred to the main body bus 4-2 via the I / O bus interface 4-3.

FIG. 5 is a block diagram of an embodiment of the ISDN I / O card of the present invention. This ISDN I / O card is the same as the ISDN IC card 5-1 and the main bus 5-2.
And the ISDN I / O card to connect the I / O bus interface 5-3 and the serial I / O 5-4 for converting the data from the bus to serial data and the data from the line to parallel data. , Serial I /
When the data from the O5-4 is transmitted to the ISDN line 5-6 via the line interface 5-7, the ISDN
ISDN conversion unit 5 for converting data that matches the line standard
Built-in -5. The line interface 5-7 is
Data from the ISDN converter 5-5 is transferred to the ISDN line 5-
6 or send data from ISDN line 5-6 to I
Functions necessary for transmission to the SDN conversion unit 5-5, and I
It has an interface necessary for connecting to the SDN line 5-6.

[0012]

As described above, according to the present invention, since the IC card portion and the line interface portion are integrated with each other, the durability is enhanced and the line interface portion is resistant to impact, and the line interface portion is integrated with the IC card portion. Since they are integrated, the line interface section is fixed, and there is an effect that it becomes resistant to electrical characteristics and electromagnetic noise.

Further, because of the integrated structure, the board and the housing of the IC card section and the line interface section are integrated, and only one board and the housing are required, and the IC card section and the line interface section are engaged with each other. Costs are reduced by eliminating the need for receptacles and plugs.

Further, since it has an integrated structure, it has an effect of improving portability.

[Brief description of drawings]

FIG. 1 is a perspective view of a modem I / O card according to an embodiment of the present invention.

2 is a block diagram of the modem I / O card of FIG.

FIG. 3 is a block configuration diagram of a LAN I / O card according to an embodiment of the present invention.

FIG. 4 is a block configuration diagram of a facsimile I / O card according to an embodiment of the present invention.

FIG. 5 is a block diagram of an ISDN I / O card according to an embodiment of the present invention.

FIG. 6 is a perspective view of a conventional I / O card modem.

[Explanation of symbols]

 1-1 IC card 1-2 Line interface 1-3 Telephone line 2-1 Modem IC card 2-2 Main unit bus 2-3 I / O bus interface 2-4 Serial I / O 2-5 MODEM 2-6 Telephone line 2-7 Line Interface 3-1 LAN IC Card 3-2 Main Bus 3-3 I / O Bus Interface 3-4 Serial I / O 3-5 LAN Interface 3-6 LAN 3-7 Line Interface 4-1 Facsimile IC Card 4-2 Main unit bus 4-3 I / O bus interface 4-4 Data compression / expansion unit 4-5 Procedure conversion unit 4-6 Telephone line 4-7 Line interface 4-8 MODEM 5-1 ISDN IC card 5- 2 Main unit bus 5-3 I / O bus interface 5-4 Serial I / O 5-5 ISDN converter 5-6 I DN line 5-7 line interface 6-1 IC card 6-2 receptacle 6-3 plug 6-4 line interface 6-5 telephone line

Claims (5)

[Claims] 1. An I / O card having an integrated structure of an IC card unit and a line interface unit. 2. A LAN (Local Area Net)
LAN I characterized by having an integrated structure of an IC card section having a work function and a line interface section
/ O card. 3. A facsimile I / O card having an integrated structure of an IC card section having a facsimile function and a line interface section. 4. ISDN (Integrated Se)
An ISDN I / O card characterized by having an integrated structure of an IC card section having a functions of a digital voice network and a line interface section. 5. A modem I / O card having an integrated structure of an IC card section having a modem function and a line interface section.