KR19980069482A - Ring Control Method of Combined Wireless Telephone with Portable Device - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a method for controlling a ring of a main body and a portable device in a cordless telephone combined fax machine having a portable device.

I. The technical problem to be solved by the invention

It provides a ring control method that can prevent the user from unnecessarily responding to the portable device when there is a fax call.

All. Summary of Solution of the Invention

When the ring tone is received from the telephone line, it checks whether or not the call tone is received. When the call tone is received according to the facsimile call, the ring is output only by the main body of the fax.

la. Important uses of the invention

It is used to control a ring in a dual-use fax machine with a portable device.

Description

Ring Control Method of Combined Wireless Telephone with Portable Device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a radiotelephone combined fax, and more particularly, to a method for controlling a ring of a main body and a portable device of a combined radiotelephone.

In general, a facsimile machine combined with a wireless telephone can transmit and receive a facsimile message like a general facsimile, as well as a wireless telephone call using a portable device. In such a radiotelephone combined facsimile, the caller may be a telephone or a facsimile when there is a call from the telephone line. The telephone refers to a case where the other party wants to make a telephone call, and the fax refers to a case where a facsimile message is to be sent.

Despite this, the conventional wireless telephone combined fax machine outputs the ring simultaneously to the main body and the portable device regardless of the type of call when the ring signal according to the call of the caller is received from the telephone line. In this case, the user could not know whether the call was for a telephone call or a facsimile message only by listening to the ring sound. Accordingly, there have been frequent cases where a user responds to a portable device even during a facsimile call. As such, when the user responds to the portable device during the facsimile call, the user has to switch back to the facsimile reception mode through key operation in order to receive the facsimile message.

As described above, when a ring signal is received in a combined fax machine, the ring is simultaneously output to the main body and the portable device, so that the user cannot distinguish whether the call is a facsimile call or a telephone call. There was a problem that the response to the portable device.

It is therefore an object of the present invention to provide a method for controlling a ring of a facsimile for dual use with a telephone so that the user does not unnecessarily answer the facsimile call to the portable device.

1 is a block diagram of a conventional wireless telephone combined use fax having a portable device;

2 is a ring control flow diagram in accordance with an embodiment of the present invention.

In order to achieve the above object, the present invention checks the type of call by checking whether a call tone is received when a ring signal is received through a telephone line. It is characterized by not.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description and in the accompanying drawings to provide a more general understanding of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

First, referring to FIG. 1, which shows a block diagram of a conventional wireless telephone combined fax machine to which the present invention is applied, the wireless telephone combined fax machine includes a portable device 32 for a wireless telephone separately from the main body 30. The central processing unit 10 of the main body 30 controls the operation of the facsimile including the portable device 32 according to the program stored in the memory unit 12. The memory unit 12 stores an operation program, a protocol control program, and various reference data of the central processing unit 10, and temporarily stores data according to program execution of the central processing unit 10. The Operating Panel (hereinafter referred to as OPE) 14 has a plurality of numeric keys, function keys, and a display device, and applies key data according to key input to the central processing unit 10 and the central processing unit 10. The various states of the fax are displayed under the control of. The scanner 16 scans an original or a document and outputs image data according to the original image. Image data output from the scanner 16 is processed by the central processing unit 10 and stored in the memory unit 12 and transmitted by a modem (modulator-demodulator) 18 or printed by the printer 22. Is output. The modem 18 modulates the output data and the image data of the central processing unit 10 into analog signals and transmits them to the telephone lines T and R through the NCU (Network Control Unit) 20. Demodulate the analog signal received from R). The NCU 20 forms a line between the telephone lines T and R and the modem 18 and the wireless portable device connection unit 26 under the control of the central processing unit 10, and through the telephone lines T and R. The ring signal received and the call tone are detected and notified to the CPU 10. The printer 22 prints an image under the control of the central processing unit 10. The sensor unit 24 detects the state of each part of the facsimile, including the remaining amount of recording paper, the facsimile message detection, and provides the central processing unit 10. The wireless portable device connection unit 26 modulates a voice signal and a data signal into a radio frequency (RF) signal under the control of the central processing unit 10, and transmits it to the portable device 32 through an antenna and is received through the antenna. The RF signal of the device 32 is demodulated into a voice or data signal.

The above-described wireless telephone combined fax machine outputs the ring to the main body and the portable device simultaneously as described above when the ring signal is received. Accordingly, since the user cannot distinguish whether the call is a telephone call or a facsimile call, the user may unnecessarily respond to the mobile device even in the case of a facsimile call.

On the other hand, communication for sending a message between facsimile machines is typically performed by a receiving facsimile after responding to a ring signal according to a call of a sending facsimile, and performing a protocol according to a predetermined transmission control procedure with a line formed between the sending and receiving facsimile machines. Is made by According to the transmission control procedure, when first setting up a call between a sending and receiving side facsimile, the sending side facsimile transmits a calling tone (CNG) to the receiving side facsimile. The receiving facsimile then completes the call setup by sending a called station identification (CED) to the sending facsimile in response to the call tone received from the sending facsimile. After the call is set up by this procedure, the actual facsimile message is transmitted between the sending and receiving facsimile according to the next step of the transmission control procedure.

As described above, when a ring signal is received at the receiving side facsimile, the call tone is subsequently received when the calling side is a facsimile. On the other hand, if the caller is a telephone, the call tone is not received.

The present invention focuses on the fact that the call tone is received only in the case of a facsimile call and the call tone is not received in the case of a telephone call. Then, the portable device 32 is controlled so as not to output a ring. This can prevent the user from unnecessarily responding to the portable device 32 in the case of a facsimile call.

2 illustrates a ring control process of the main body 30 and the portable device 32 of the combined fax machine according to the embodiment of the present invention. The operation according to the flowchart of FIG. 2 is programmed in the memory unit 18 to be performed by the CPU 10 of FIG.

In this state, if a ring signal corresponding to a telephone call or facsimile call is received from the telephone lines T and R while the dual-purpose fax machine shown in FIG. 1 is in a standby state, it is detected by the NCU 20 and the NCU 20 is ringed. Inform the CPU 10 of the reception of the signal. Then, the central processing unit 10 checks whether the call tone is received through the NCU 20 in step 102 in response to this in step 100 of FIG. The call tone will not be received if the caller is a telephone and the call tone will be received if the caller is a fax.

If the call tone reception is detected in step 102, since the caller is a facsimile, the central processing unit 10 controls the modem 18 to turn on the ring as in the normal case in step 104. Accordingly, a tone signal of a preset frequency is generated from the modem 18 and applied to the NCU 20 so that the ring is output from the main body 30. At this time, since the ring is not turned on in the portable device 32, the ring is output only from the main body 30. Therefore, in the case of a facsimile call, since the ring is output only from the main body 30 and the ring is not output from the portable device 32, it is possible to prevent the user from unnecessarily responding to the portable device 32.

Unlike the above, if the reception of the call tone is not detected in step 102, since the calling party is the telephone, the central processing unit 10 controls the modem 18 to turn on the ring in step 106. And wirelessly send a command to the portable device 32 to turn on the ring via the wireless portable device connection 26. Accordingly, the ring is output from the main body 30 and the portable device 32 at the same time. Therefore, in the case of a telephone call, the ring is simultaneously output from the main body 30 and the portable device 32 as in the prior art.

After performing steps 104 or 106, the CPU 10 returns to a routine for receiving a facsimile message or making a phone call as in a normal case.

As described above, the present invention has the advantage of preventing the user from unnecessarily responding to the portable device by controlling the ring not to be output to the portable device when the call is for the facsimile.

Claims (2)

In the ring control method of a wireless telephone combined use fax having a portable device, And receiving a ring tone from a facsimile call when a ring signal is received from a telephone line, and when the call tone is received, output a ring only from the body of the facsimile. In the ring control method of a wireless telephone combined use fax having a portable device, Checking whether a call tone is received according to a facsimile call when a ring signal is received from a telephone line; Outputting a ring only in the body of the facsimile when the call tone is received; And outputting the ring to both the main body and the portable device at the same time when the call tone is not received.