JPH062840U - Wireless modem - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a wireless modem which is excellent in portability, does not cause inconvenience even in a connected state, and can be connected to a telephone line wirelessly to improve usability. [Structure] In a wireless modem for a portable personal computer, a card size wireless transmission / reception unit 1 to be connected to the portable personal computer 3 and a function of transmitting / receiving data to / from the card size wireless transmission / reception unit 1 and modulating / demodulating data connected to a telephone line are provided. It consists of one set of the wireless transmission / reception unit 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wireless modem for a portable personal computer.

[0002]

[Prior art]

 As a device that enables a personal computer to be wirelessly connected to a telephone line, there is a device in which a cordless telephone has a modem function and is connected through the cordless telephone.

[0003]

[Problems to be solved by the device]

 However, in the above conventional device, a cordless telephone has to be connected, and it is inconvenient for a portable personal computer to carry it together. There are also card-type modems that connect to a personal computer, but they have the drawback of not being convenient because they are not wireless.

This invention solves the above-mentioned drawbacks of the conventional device and provides a wireless modem which is excellent in portability, does not become unusable even in a connected state, and is wirelessly connected to a telephone line to improve usability. The purpose is to do.

[0005]

[Means for Solving the Problems]

 The above-mentioned object is a wireless modem having a function of transmitting / receiving a card size wireless transmission / reception unit connected to a portable PC and a card size wireless transmission / reception unit in a wireless modem for a portable PC, and having a function of modulating / demodulating data connected to a telephone line. This is accomplished by providing a wireless modem consisting of a set of transmit and receive units.

[0006]

[Action]

 The wireless transmission / reception unit to be connected to the personal computer is a card size, and when connected, the wireless transmission / reception unit and the wireless transmission / reception unit have a function of modulating / demodulating data connected to the telephone line, except for the antenna part for wireless transmission / reception. Perform the function of the modem by doing.

[0007]

【Example】

 FIG. 1 is an overall perspective view of a wireless modem system according to an embodiment.

Reference numeral 1 is a card size wireless transmission / reception unit, 2 is a wireless transmission / reception unit, 3 is a portable personal computer, 4 is an antenna, 5 is a card size wireless transmission / reception unit insertion port, 6 is a cable, and 7 is an antenna.

The card size wireless transmission / reception unit 1 is inserted into the card size wireless transmission / reception unit insertion slot 5 of the portable personal computer 3. At that time, the unit is in a state in which only the transmitting / receiving antenna 4 is exposed to the outside of the portable personal computer 3, which does not disturb the operation of the personal computer and can be moved in that state. A wireless transmission / reception unit 2 having a data modulation / demodulation function is connected to a telephone line 15 via a cable 6. Then, the modem function is performed by modulating and demodulating data so that the card size wireless transmission / reception unit 1 and the wireless transmission / reception unit 2 can transmit / receive data and the wireless transmission / reception unit 2 can transmit to the telephone line 15. .

FIG. 2 is a block diagram of the wireless modem system according to the embodiment.

First, a case where data is transmitted from the portable personal computer 3 to the telephone line 15 will be described. The card-size wireless transmission / reception unit 1 includes a connector 8, a wireless modulation / demodulation circuit 9, a transmission / reception circuit 10, and an antenna 4. The data from the portable personal computer 3 is modulated by the wireless modulation / demodulation circuit 9 so that it can be wirelessly transmitted, and is transmitted via the transmission / reception circuit 10 and the antenna 4.

The wireless transmission / reception unit 2 for receiving the transmitted data includes an antenna 7, a transmission / reception circuit 11, a wireless modulation / demodulation circuit 12, a line modulation / demodulation circuit 13, and a connector 14. The data received via the antenna 7 and the transmission / reception circuit 11 is demodulated by the radio modulation / demodulation circuit 12, and further modulated by the line modulation / demodulation circuit 13 so that it can be transmitted to the telephone line 15, and the telephone line is transmitted via the connector 14 and the cable 6. Sent to 15.

Next, a case where the portable personal computer 3 receives data from the telephone line 15 is shown. The data received from the telephone line 15 is demodulated by the line modulation / demodulation circuit 13 of the wireless transmission / reception unit 2, further modulated by the wireless modulation / demodulation circuit 12 so as to be wirelessly transmitted, and transmitted via the transmission / reception circuit 11 and the antenna 7. . The card size wireless transmission / reception unit 1 which received the data via the antenna 4 and the transmission / reception circuit 10 is further demodulated by the wireless modulation / demodulation circuit 9 and sent to the portable personal computer 3 via the connector 8.

As described above, the portable personal computer 3 is electrically connected to the telephone line 15 by the card size wireless transmission / reception unit 1 according to the present invention and the modem consisting of the wireless transmission / reception unit 2 for transmitting / receiving the unit 1. In the connected state, it can be freely moved and used within a predetermined range where wireless communication is possible, improving usability.

[0015]

[Effect of device]

 According to the present invention, the wireless transmission / reception unit to be connected to the personal computer is a card size, and the wireless communication unit has a function of modulating / demodulating data connected to the telephone line, except for the antenna part for wireless transmission / reception, which is contained in the portable personal computer. Since it performs the function of a modem by performing wireless transmission / reception with the transmission / reception unit, it is excellent in portability even if it is connected, and it is wirelessly connected to the telephone line. It can be used by freely moving it within the range, improving usability.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a wireless modem system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a wireless modem system according to an embodiment of the present invention.

[Explanation of symbols]

 1 card size wireless transmission / reception unit 2 wireless transmission / reception unit 3 portable PC 4, 7 antenna 5 card size wireless transmission / reception unit insertion port 6 cable 8, 14 connector 9, 12 wireless modulation / demodulation circuit 10, 11 transmission / reception circuit 13 line modulation / demodulation circuit

Claims (1)

[Scope of utility model registration request] 1. A wireless modem for a portable personal computer, which has a card size wireless transmission / reception unit connected to the portable personal computer, and transmits / receives to / from the card size wireless transmission / reception unit, and has a function of modulating / demodulating data connected to a telephone line. A wireless modem consisting of one set of wireless transmission / reception unit.