JPH03231525A - Mobile radio facsimile communication adaptor - Google Patents

Abstract

PURPOSE:To reduce the operation time and the telephone charge by providing an off-hook means hooking off a signal for a facsimile equipment and a signal for a general telephone subscriber line to a MODEM section. CONSTITUTION:An automobile telephone set 11b is used to make a call to a specific party and a facsimile equipment 15 is used to send an original after talking, then the transmission original is set to the facsimile equipment 15, the telephone set 11b enters a dial number, a start key is depressed to call the opposite party for talking. At the end of talking, when the start key of the telephone set 11b is depressed again, an off-hook signal S10 assigned to the start key is set and sent to a radio equipment 11a. A MODEM section reads the offhook signal S10 simultaneously and decodes the signal as a key data to inform it to the controller. That is, the same state of hooking off a handset of the telephone set is caused.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mobile facsimile communication adapter connected to a car telephone device and a facsimile device in facsimile communication using a car phone system as a transmission path, and particularly to a mobile facsimile communication adapter that has a dialing function. The present invention relates to a mobile facsimile communication adapter used in a communication method using a portable facsimile device that does not have a portable facsimile device.

(Prior Art) Conventionally, there has been a technology in this field as shown in FIG. This will be explained below using figures.

FIG. 2 is a schematic functional block diagram showing an example of the configuration of a conventional mobile facsimile communication system.

This mobile facsimile communication system has a car telephone device 1 including a radio 1a and a telephone 1b, and an adapter 2 is connected to the car phone device 1. A facsimile machine 3 without a dialing function is connected to the adapter 2. A general telephone set 5 is connected to the facsimile machine 3 via a cable 4 equipped with an interface using a two-wire loop dial system (same as a general telephone subscriber line). Here, the cable 4 is connected at both ends to a telephone terminal of the facsimile machine 3.

FIG. 3 is a functional block diagram showing an example of the configuration of the adapter 2 in FIG. 2. As shown in FIG.

This adapter 2 is an NCLJ (Network) that has an interface function between the car telephone device 1 and a general telephone subscriber line.
ork control LJnit) and reads and discriminates serial data S1 in a predetermined format transmitted from an external car phone device 1, a G3 communication control section 2b-1, and a main control section 2b.
-2, and a controller unit 2b that includes an RF communication control unit 2b-3 and outputs a control unit @S2 based on serial data S1, and a V27ter modem 2C that complies with the recommendations of the CCITT (Coverage Telegraph and Telephone Consultative Committee). It is provided with a general telephone subscriber signal format and a central office line section 2d which is controlled by a control signal S2 from the controller section 2b and has an interface function to the facsimile machine 4.

Here, the G3 communication control section 2b-1 is equipped with the same procedure as a standard G3 facsimile machine that complies with the CCITTld notice, and the main control section 2b-2 is equipped with a CPU, ROM, and RAM.
It consists of Furthermore, the modem section 2a has an error correction control function that takes into consideration the wireless line.

Next, the operation will be explained.

When making a call to a specific party from the telephone set 1b of the car telephone device 1, having a conversation with the other party, and then transmitting a document using the facsimile machine 4, most facsimile machines of this type do not have a polling transmission function. , a general telephone 5 is required.

First, the user makes a call from the telephone 1b and has a conversation, but after the conversation ends, the user hangs up the phone (line disconnection). Next, the original is set on the facsimile machine 3 and dialed from the telephone 5. At that time, a loop current flows through the telephone 5 and the adapter 2 via the NCU of the facsimile machine 3, resulting in an off-footer state.

The dial signal is sent to the adapter 2 through the NCU of the facsimile machine 3. The adapter 2 converts the dial signal into a car phone dial signal format and sends it to the radio 11S1a. Thereafter, when the other party is connected, a response signal is sent from the adapter 2 to the telephone 5. Since conversation is not possible, a direct response signal is heard, and if the start key of the facsimile machine 3 is pressed during that time, the original to be transmitted is read and its contents are sent to the other party via the above-mentioned route.

(Problem to be Solved by the Invention) However, in a facsimile communication system using a mobile facsimile communication adapter configured as described above, after one conversation, the user must call again and start facsimile communication, which requires two efforts. Become.

This poses a problem in that operation time and telephone charges increase.

The present invention provides a mobile facsimile communication adapter that solves the problems of the prior art, such as increased operating time and high telephone charges.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention reads and discriminates serial data in a predetermined format transmitted from an external mobile radio telephone device, and also reads and discriminates serial data transmitted from an external mobile radio telephone device. a modem section having an interface function between the telephone subscriber line and a general telephone subscriber line; a controller section that outputs a control signal based on the serial data; and a central office line section that is controlled by the control signal to off-hook an external facsimile device. This mobile facsimile communication adapter is equipped with the following measures.

That is, the modem section is provided with off-footer means for off-hooking the facsimile machine and the general telephone subscriber line.

(Function) In the present invention, since the mobile facsimile communication adapter is configured as described above, the off-hook means for off-hooking the facsimile device and the general telephone subscriber line can connect the facsimile device to the telephone line. It works to automatically send the contents of the original placed in the machine.

Therefore, the above problem can be solved.

(Embodiment) FIG. 1 is a block diagram of a main part of a modem section of a mobile facsimile communication adapter showing an embodiment of the present invention, and FIG. 4 is a mobile facsimile communication system showing an embodiment of the present invention. FIG. 2 is a schematic functional block diagram of FIG.

First, explanation will be given starting from FIG.

This facsimile communication system includes a car telephone device 11 which is a mobile radio telephone device equipped with a radio device 11a and a telephone 11b. The telephone set 11b is provided with a start key for making a call@310. An adapter 13 is connected between the radio 11a and the telephone 11b via a cable 12 that includes an upstream serial data line for the off-footer signal S10. A facsimile machine 15 without a dialing function is connected to the adapter 13 via a cable 14.

Here, the cable 14 connects the wireless 111a and the telephone 11b.
have an interface with the same conditions, one end is connected to the line terminal of the facsimile machine 15, and the other end is connected to the FA of the adapter 13.
Each is connected to the X pancreas. Facsimile machine 1
The telephone terminal 5 is connected to a general telephone subscriber line terminal of the adapter 13 via a cable 16.

FIG. 1 is used in place of the NCU of the modem unit 2a in FIG. 3.

This modem section 2a has a control section 21 that starts up the adapter 13 using, for example, a start key of the car telephone 11b. The control unit 21 is connected to an RF communication control unit 2b-3 via a data line 20, and has filter and analog/digital conversion functions via a data line 22. 24 are connected. Furthermore, this transformer 2
A balancing resistor 25 is connected to the primary winding of No. 4. Further, at one end of the secondary side of the transformer 24, a relay contact 26 for generating a dial signal and a relay contact 27 for opening/closing the line are provided. And relay contact 26.27
Both ends of the secondary winding of the transformer 25 are connected to terminals 28 and 29 for connection to a general telephone subscriber line.

Further, a relay 30.31 corresponding to the contact point 26.27 is connected to the control unit 21, and the relay 31 and the contact point 27 provide an off-hook means for off-hooking the facsimile device 15 and the general telephone subscriber line. It is formed. Further, the control unit 21 and a terminal 33 for connecting the car telephone device 13 are connected via a data line 32.

FIG. 5 is a sequence diagram from phase B to phase C image data transmission. The operation of the mobile facsimile communication system will be explained with reference to this figure.

If you want to make a call to a specific party from the car phone 11b, have a conversation, and then send a document using the facsimile device 15, first set the document to be sent in the facsimile device, enter the dial number on the phone 19111b, and press the start key. Press to call the other person and have a conversation. At the end of the conversation, call vi
Press the start key of lt11b again. Then, the off-hook signal 310 assigned to this start key goes up and is sent to the radio 11a via the serial data line. At the same time, the modem section 2a shown in FIG. 3 reads the off-hook signal 310, interprets it as the key data, and notifies the controller 2b. That is, the off-hook signal 310 is interpreted by the controller 21 through the data line 32 shown in FIG.

Immediately thereafter, the modem section 2a outputs an off-footer signal to the serial data line to maintain the car telephone line. The control unit 21 turns on the relay 31 and closes its contact 2.
7 is closed, a loop is formed between the cable 16 shown in FIG. 4 and the telephone line of the facsimile machine 15, and a current flows, resulting in an off-hook state. In other words,
The situation is the same as when the handset of the telephone shown in FIG. 2 is picked up.

Next, the controller 2b receives the off-hook signal S10, controls the central office line section 2d, and controls the calling signal (21001-12>
and a DIS signal (digital identification signal) is sent to the facsimile machine 15. After that, I tried to respond by operating the start key, but since I could not hear the signal tone, I
After pressing the start key b, the start key of the facsimile machine 15 is operated. Then, DO3 (digital command signal) and TC are sent from the facsimile device 15 side to the adapter 13 side.
An F (training check) signal is sent, followed by
CFR (from the adapter 13 side to the facsimile device 15 side)
Receive preparation confirmation> signal is sent.

Since a line loop has already been created between the facsimile machine and the adapter, communication begins. In this state,
CCITT Recommendation T, 30 Procedures) Needs A (Call Setup)
, B (pre-message procedure).

After that, the image data (MH/MR) is sent to the facsimile machine 1.
5 to the adapter 13;
The image data is then converted into image data and sent to the car telephone device 11. The facsimile device 15 sends RTC and EOP signals and the procedure ends. In this way, communication is performed between the facsimile device 15 and the 03 communication control section 2b-1 of the adapter 13 according to the procedures of phases B, C, D, and E.

In phase C (message transmission), during the communication, the RF communication control section 2b-3 performs a process of converting the data into the optimal data format for the wireless line, and sends the data to the modem section 2a.

The modem section 2a encodes the data for error correction control and sends it out via the uplink serial data line of the mobile telephone device 11 via the NCU shown in FIG. To explain this with reference to FIG.
The data from the F communication control unit 2b-3 is transferred to the data line 20.
data line 22 and performs 1,000 encoding.
is used to send it to the codec 23. codec 23
converts the digital signal into an analog signal and then sends the analog signal to the transformer 24. Thereafter, the signal is sent out through contact 26 of relay 30, contact 2 of relay 31, and terminal 28.29.

Note that the present invention is not limited to the illustrated embodiment, and various modifications are possible. For example, relay 3 is used as an off-footer means.
1 and the contact 27 are used, but the present invention is not limited to the relay, and other means may be used as long as the facsimile device 15 and the adapter 13 can be placed in an off-hook state via the cable 16.

(Effects of the Invention) As described in detail above, according to the present invention, the modem section is provided with an off-footer means for off-hooking the facsimile device and the general telephone subscriber line. Through this connection, the contents of a document placed in a facsimile device can be automatically transmitted.This is expected to improve operability and reduce telephone costs.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the main parts of the modem section of a mobile facsimile communication adapter showing an embodiment of the present invention, FIG. 2 is a functional block diagram of a conventional mobile facsimile communication system, and FIG. FIG. 4 is a functional block diagram of a mobile facsimile communication system showing an embodiment of the present invention, and FIG. 5 is a sequence diagram of image data transmission. 2a...modem section, 2b...controller section, 2d...office line section, 11...car telephone device, 13...movement facsimile communication adapter, 15...facsimile device, 27
．． 31... Relay and its contacts, S2...
...Control signal, 310...Off-hook signal.

Claims (1)

[Scope of Claims] A modem unit that reads and discriminates serial data in a predetermined format transmitted from an external mobile radio telephone device, and has an interface function between the mobile radio telephone device and a general telephone subscriber line. A mobile facsimile communication adapter comprising: a controller unit that outputs a control signal based on the serial data; and a central office line unit that is controlled by the control signal and takes off-hook an external facsimile device, the modem unit including: A mobile facsimile communication adapter characterized in that an off-hook means is provided for off-hooking the facsimile device and the general telephone subscriber line.