KR20000003246U - Telephone line connecting device with optional connection function - Google Patents

Abstract

The present invention is a trunk line access device that helps to perform data transmission / remote control and monitoring / fax transmission after calling a personal computer (PC) equipped with a modem from a remote location. Automatic / manual transmission and various communication programs can be selectively connected.

In addition, it is possible to connect a telephone line to a commercial fax, a remote control device as well as a modem, and to solve the problem of incoming call by preventing a collision between a regular telephone and data communication even in an environment using a regular telephone.

In particular, as a means to solve the practical problem of not always being able to turn on the computer, the power control function automatically turns on the power when there is an authorized call from a remote place when the computer or device is not turned on, and then turns off the power when the transmission is completed. Telephone line connection device with a selective connection function characterized in that it comprises a.

Description

Telephone line connecting device with optional connection function

The related art is related to the field of control of telephone line. In case of using a general telephone and a remote access device or computer together, the conventional technology cannot remotely connect when a person first receives the call. There is a problem that there is a problem or uncomfortable, you can not selectively run (including fax) the desired program from a remote place, and always have to turn on the computer or device to be connected.

The purpose of the present invention is to connect a necessary program using a remote control or a personal computer to perform data transmission. A telephone line interface for accessing a desired program or devices by separating a general telephone, a fax, and a remote connection is provided. This is done by varying the frequency of the ring generated by the unit with automatic power management to solve the problem of incoming call when using the phone together, especially to overcome the realistic situation of not being able to turn on the computer all the time. It allows you to choose the program you want to connect to.

As a means for achieving the above object, a control signal or a paxton sent by the requesting side is detected without direct connection between a general telephone and a device to be remotely connected. If a control signal is detected, the device sends a ring signal with a different period to respond to a program requesting connection to the device to be connected while the CO line is held. The device is called. In addition, when the computer or device to be connected is turned off, it automatically turns on and waits for the desired program or device to respond. During this time, the tone is sent periodically to indicate that the caller is waiting. I'm trying to.

1-functional block diagram and circuit diagram of the present invention]

end. Power supply b. Ring signal generator Modem hook detector

la. CO Line Switching Department Storage (ROM) f. MCU

four. Matching transformer DTMF Transmitter and Receiver. Paxton detector

car. Status display part k. C. trunk hook detection part Ring detector

wave. Computer power control relay

.MCU; Abbreviation for Micro-Control Unit. Processor for control.

.DTMF; Abbreviation for Dual Tone Multiplex Frequency

Referring to Fig. 1, the apparatus includes a power supply unit for supplying power required for each circuit and ring generating circuit, and a device to be connected while maintaining a line when an incoming call requires data transmission rather than a general voice telephone. Ring signal generator (b) which regenerates ring signal, modem hook detector (b) which detects connection request of modem or device to be connected (c), general telephone / fax / modem or device according to incoming phone connection request A trunk line switching unit (D) for switching trunk lines so as to be coupled to a network, a storage unit (V) for storing various settings such as a connection password, an MCU (bar), a processor for controlling all operations of the apparatus, a telephone line and the unit Matching transformers for signal combinations, DTMF transmitters and receivers for signal exchange between remote access requesters, and fax tone detectors for detecting tones for automatically detecting whether an incoming call is a fax The status display unit (car) to visually display the current operating status, the trunk line hook detection unit (ka) to detect the use of trunk lines, the ring detection unit (ta) to detect incoming status, and even when the computer or device to be connected is turned off It consists of a computer power control relay (wave) for power control that allows connection.

When the operation of this apparatus is explained in accordance with one process, the telephone line is connected to a regular telephone by the contact configuration of the K1 relay of the CO line switching unit (D). You can use a regular phone. When a call is received from the outside, the ring detector (ta) counts the number of rings. When the specified number of rings is reached, the ring detecting unit (ta) receives the call by itself and waits for a connection request call sent from a remote location along with a fax detection. do. Even if a person or an answering machine receives the call first, it detects the fax detection and connection request call signs in the same way.If the fax and connection request call signs match, the MCU (bar) operates the K1 relay of the CO line switch to separate the CO line from the phone. Maintain the trunk line by the K3 contact, and then proceed with the connection procedure. As a result, it is possible to solve an incoming collision in making a regular call and remote access at the same time since the operation of connecting a CO line with a device to be connected only when there is a control code for remote access, whether a person receives a call or a device itself.

When the CO line is switched by FAX detection or external control, the device generates different ring signals to the modem or device to be connected by the ring signal generator (B) according to the FAX request or connection request call sign. Send a tone to let the caller wait for you. The key to selecting a connection for fax / connection1 / connection2 in creating a ring to a modem or device to be connected is to change the frequency of the ring so that the computer's main unit management program drops the ring (when there is a ring on the modem). 'RING' message every time) to determine the interval to run the program to be connected to the fax or connection 1 / connection 2.

Also, if a valid connection is reached, the MCU (bar) operates the computer power control relay (wave) K4 to turn on the computer when the computer or device is turned off at this point. Run it, run the program you want, and wait for the modem to respond.

When the computer or device to be connected responds to the connection request, the modem hook detection unit (C) detects this and operates K1 and K2 of the trunk line switching unit (D) to switch the telephone line to the modem or device side. K3 consists of contacts that remain closed when waiting, but open when the modem or device requests a connection.

After data transmission, modem or device side recovers trunk line and detects trunk line hook (car). MCU (bar) returns all relays of trunk line switching unit (la) to standby state and automatically turns on when computer is turned on. After the time elapses, turn off the computer by opening K4. SW1 is a switch for turning on or off a computer or device to be manually connected. The SW1 function is only performed when this switch is turned off.

The connection request command and device setting command from the remote site are composed of commands starting and ending with * or # of the telephone buttons, which prevents the possibility of malfunction due to normal dial operation.

[Arrangement of control commands of this device]

. Command regarding the response status of the device. All commands start with # and end with #.

. All control commands can be issued directly via the dial button with a local telephone connected to the device or via a modem as a program on the computer.

[] Auto Answer Ring Count Setting Command

Command># R ₀ # or # R ₁ R ₂ #; Rn is one or two digits

. A command to specify the number of rings the unit answers itself when a call is received from a remote site and is not answered by another device (ring count <19)

[] Connection 1 call code setting command

Command># 1 S ₁ S ₂ S ₃ S ₄ #; Sn is four digits

. This is a command for setting a call code for executing a program connected to connection 1 of the computer management program of this unit by making a call from a remote place. The device sets the call code set for connection 1 when a person answers or receives a call. If it receives, the program connected to connection 1 of the management program is executed.

[] Connection 2 call code setting command

Command># 2 S ₁ S ₂ S ₃ S ₄ #; Sn is four digits

. This is a command for setting a call code for executing a program connected to connection 2 of the computer management program of this unit by making a call from a remote place, and the device sets the call code set for connection 2 when a person answers or a person answers the call. If it receives, the program connected to connection 2 of the management program is executed.

[] Auto end time setting command

Command># * T ₁ T ₀ # or # * T ₀ #; Tn is automatic shutdown time (0-99 minutes)

. This command specifies the time when the connected computer or device turns off automatically after the connection is terminated.

[] Manual fax control control command

Command> * *

. This is a command to forcibly connect to a fax when a person first picks up a call before the device automatically receives a call, and first recognizes that the incoming call is a fax (when he hears a beeping beeping fax CNG tone).

. Even if you do not connect to a fax manually, the device automatically switches to the fax side when the fax is entered more than once by performing automatic transmission on the other side.

. In the case of manual transmission, not automatic fax transmission, even if the remote site sends this command within 5 seconds after receiving the device or person, the device takes action to receive the fax.

[] Fax Receive Control Command after Call

Command> * 0 *

. If you want to receive a fax after a call.

. This command is also valid from a remote location.

The present invention can be connected to a computer or other remote devices through a telephone line in a remote place, in particular, so as not to interfere with each other when using a common telephone, remote access and control devices can be used practically, in the case of a computer It is possible to connect without turning on the power, and it is possible to support an environment that can be used as a regular fax with a computer's fax program without a general fax.

In addition, since the program can be selectively accessed from the outside, up to three programs can be executed including a fax.

Claims (4)

In addition to operating programs that run on personal computers, it enables automatic access to fax and automatic / manual transmission and various communication programs. In particular, as a means to solve the practical problem of not always being able to turn on the computer, if the computer or the device is not turned on, the power control function is automatically turned on when there is an authorized call from a remote place and turned off after transmission. A trunk line connection device comprising: a power supply unit for supplying power required for each circuit and ring generating circuit; and a device to be connected while maintaining a line when an incoming call requires data transmission instead of a general voice call. Ring signal generator (b) which regenerates ring signal to Modem hook detection unit (C) for detecting the connection request of the device, CO line switching unit (D) for switching the trunk line to be connected to the general telephone / fax / modem or the device according to the incoming call connection request (D), connection password Memory to store the settings (e), MCU (bar) which controls all operations of the device, matching transformer for signal combination of telephone line and this device, DTMF for signal exchange between remote access requester Transmitter / receiver (h), fax tone detection unit (i) that performs tone detection to automatically detect whether an incoming call is a fax, status display unit (car) to visually display the current operating status of the device, and whether a trunk line is used or not. Computer line control reel for power control to enable connection even when the computer or device to be connected is turned off Selection consists of the (M) connected to the function unit telephone trunk lines connected to the device The method of claim 1 is a method for resolving an incoming call between a general telephone and a data communication. When a telephone is connected to the apparatus while the telephone is ringing, even if a person or an answering machine answers first, If the call side sends a connection request code or detects a fax automatically, if the CO line is switched from the telephone to the unit or if the call is not received even after a certain number of rings, the unit answers itself and waits for the control code. Telephone line connection device with selective connection function characterized in that it is configured to receive data communication and fax without incoming collision, and relay contact circuit of trunk line switching unit (D) to realize the function. The method according to claim 1, wherein when the device to be connected is a computer modem, a method of selecting and executing a fax or other program is executed. The management program causes the modem to generate a ring signal of a different cycle again according to an external tone and a connection request code. Telephone line access device with optional connection function characterized in that the desired program can be selectively executed by simply connecting to a general modem by determining the occurrence period of the 'RING' character sent from The switch according to claim 1, for solving a power problem for effectively using a computer as a remote access / control / monitoring device by overcoming a practical use environment in which the computer or device to be connected is not always turned on. This enables the computer to be turned on and off, and when the computer is turned off when the external connection is requested, the unit turns on and turns off at the specified time after the connection is turned off. Telephone line connecting device with selective connection function, characterized in that it is possible to determine whether to wait in the tone or try to reconnect at the calling side