KR950022499A - Data communication and fax communication device using wireless telephone - Google Patents

Abstract

The present invention relates to a data communication or a fax communication method in a notebook PC or a palmtop computer (hereinafter referred to as a PC), and in particular, a wireless communication device (for example, a cellular phone or a wireless telephone, without using a wired public network, Data communication and fax communication device using a wireless telephone to enable mobile communication by using a wireless key phone, wireless PABX wireless handset, etc., and in the conventional PC data communication can be used only in the state connected to a wired telephone network. Since the space is restricted, it is almost impossible to use it in mobile laptop or palmtop computer. In case of using the key phone in the office, it was necessary to connect to the extension or trunk line connected to the general telephone in order to use data communication. There is an effect to solve the inconvenience of the user.

Description

Data communication and fax communication device using wireless telephone

Since this is an open matter, no full text was included.

3 is a diagram illustrating a data communication state between a modem and a wireless telephone in accordance with the present invention.

4 is a block diagram of a modem according to the present invention.

5 is a block diagram of a wireless telephone for connecting a modem and a wireless public communication network according to the present invention.

Claims (2)

A data communication apparatus using a wireless public telephone communication network, comprising: communication device connection means connected to a serial or parallel interface of a communication apparatus to transmit and receive data; DTMF generating means for receiving an off-hook signal and a dial signal from a communication device connected to said communication device connection means and generating a signal such as a DTMF signal generated from a telephone; Modulation means for converting the digital data to be transmitted from the communication device through the communication device connection means into an appropriate analog signal; Demodulation means for converting an analog signal transmitted from a wireless public telecommunication network through a wireless communication device into digital data and applying the same to the communication device connection means; And controlling the overall operation of data transmission and reception, detecting the off-hook signal and the dial signal applied through the communication device connecting means, and controlling the DTMF generating means to generate the corresponding DTMF signal, and transmitting the off-hook signal to the wireless communication device. And a control means for transmitting and receiving a ring detection signal from the wireless communication device. A wireless communication device for connecting a data communication device connected to a serial or parallel interface of a communication device to transmit and receive data with a wireless public telecommunication network, comprising: a hybrid circuit for data transmission and reception with the data communication device; ; An RF module for transmitting and receiving wireless data with a wireless public communication network; The analog circuit forming the transmission path of the voice data between the hybrid circuit and the RF module and the off-hook signal transmitted from the data communication device are received, and it is determined whether a ring signal is applied from the wireless public communication network through the analog circuit. And a control means for applying a ring detection signal to the data communication device and controlling the operation of the data transmission path between the data communication device and the wireless public communication network. ※ Note: The disclosure is based on the initial application.