JPH0440143A - Communication equipment - Google Patents

Abstract

PURPOSE:To reduce the burden and communication cost of an exchange in a communication path by providing a means to detect the signal of a prescribed form different from that of a significant signal, and inhibiting a following redial processing when receiving the signal of the prescribed form after originating a call. CONSTITUTION:It is discriminated whether a significant facsimile process signal to be transmitted from the station of a called party is received or not, and when it is not received, it is discriminated whether a sound detection part 4 detects a human voice in the signal transmitted from the station of the called party or not. When prescribed initial identification time is turned to time over, setting is executed for executing the redial processing. Since the station of the called party is not a facsimile equipment when the human voice is detected, the setting for executing the redial processing is not executed but a call origination processing is finished.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a communication device, and particularly to a communication device having a redial function that calls the other party again when a significant signal from the other party cannot be detected. It is.

[Prior Art] Conventionally, in data communication devices such as facsimile machines, if image transmission cannot be performed because the other party is busy communicating, etc., the other party is automatically called after a predetermined period of time has elapsed. Devices having a so-called redial function are known.

In a device having a dialing function as described above, if a response by a significant communication procedure signal from the partner station is not obtained within the initial identification time, the device automatically calls the partner station after waiting for several minutes.

Conventional devices are known that automatically perform automatic redialing in a specific dialing method such as a one-touch key.

[Problems to be Solved by the Invention] In the above-mentioned devices having a redial function, if a person is answering due to a dialing error or the other party's terminal has been switched to a telephone, etc. However, since the calling device cannot receive the procedure signal, the calling device repeats dialing.

This causes discomfort to the user of the other station, puts a burden on the switching equipment due to unnecessary line capture, and wastes communication costs because the line is connected every time a redial is made.

The above problems also apply to other data communication devices.

An object of the present invention is to solve the above problems.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a communication device having a redial function that calls the partner station again when a significant signal from the partner station cannot be detected. A configuration is adopted in which a means for detecting a signal in a predetermined format different from the significant signal is provided, and when a signal in the predetermined format is received by the detection means after a call is made, the subsequent redial processing is prohibited.

[Function] According to the above configuration, when a signal of a predetermined format different from a significant signal for performing predetermined communication is detected, subsequent back-dial processing can be prohibited.

[Example] Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

FIG. 1 shows the structure of a communication device adopting the present invention.

In the figure, reference numeral 2 denotes a control unit consisting of a microprocessor, etc., to which is connected a storage unit 7 consisting of a ROM, a RAM used for storing image data, etc., and a program stored in the ROM in the storage unit 7. The operation of the entire device is controlled accordingly. The following members are connected to the control unit 2.

The operation unit 1 includes an LCD display and a keyboard such as a numeric keypad and function keys, and is used as a user interface. In addition, the operation unit 1 is provided with approximately several 10 one-touch keys.Telephone numbers are assigned to these one-touch keys and stored in the storage unit 7, and the other party's station is called in response to the press of each one-touch key. You can now make calls.

Furthermore, when a call is made using a one-touch key, the above-mentioned automatic redial is performed. Details of redialing in this embodiment will be described later.

The communication section 3 includes a modem, an NCU, a call signal detection section, a dial signal generation section, etc., and is used as an interface with the line N.

When making a call, the telephone number data of the other party to be called is input from the control section 2, and the communication section 3 generates a dial signal in the form of pulses or tones in accordance with this data.

The reading section 5 includes a CCD line sensor, a document conveyance system, and the like, and is used to read document images.

The recording section 6 is comprised of a thermal recording head, a recording paper conveyance system, and the like, and is used to record received images or images read by the reading section 5 during original copying.

In this embodiment, a voice detection section 4 is connected to the communication section 3. The voice detection unit 4 has a function of identifying human voice by frequency discrimination or the like, and when a voice signal is detected, the communication unit 3 notifies the control unit 2 to that effect.

Next, the call origination and redial operations using the one-touch keys provided on the operation unit 1 in the above configuration will be explained with reference to FIG. 2. It is assumed that the procedure shown in FIG. 2 is stored in the ROM in the storage unit T as a control program for the CPU.

When the one-touch key of the operation unit 1 is operated in step Sl in FIG. In S2, the dial signal is input to the communication section 3 and is caused to transmit a dial signal corresponding to the line N.

In step S3, a CNG signal indicating that the call is an automatic call is sent.
(Facsimile ejection) signal is transmitted, and thereafter step S8
The initial identification loop is executed until

In step S4, it is determined whether a significant facsimile procedure signal transmitted from the partner station has been received. If step S4 is affirmative, a known facsimile transmission process is performed in step S5.

If step S4 is negative, it is determined in step S6 whether or not the voice detection section 4 has detected a human voice in the transmission signal from the other station.

If step S4 is affirmative, a flag indicating detection of a human voice is set in step S7.

If step S4 is negative, the process directly proceeds to step S8.

In step S8, it is determined whether the predetermined initial identification time has timed out. If step S8 is affirmative, the process proceeds to step S9, and it is determined whether a flag indicating that a human voice has been detected has been set (in step S7).

If step S9 is negative, the process proceeds to step S10, where settings are made to perform redial processing after a predetermined time as in the past.

On the other hand, if step S9 is affirmative, since the other party is not a facsimile machine, the calling process is ended without making settings for redial processing.

According to the above configuration, it is determined whether or not the other party's station is a facsimile machine through voice detection, and redialing is not performed unless the other party's station is a facsimile machine. Since it does not give a pleasant feeling and does not require unnecessary dialing, communication time and communication costs can be reduced, and the burden on each exchange in the communication path can be reduced.

In the above example, when a voice is detected, redialing is simply not performed.
may be executed when step S9 in FIG. 2 is affirmative, and a warning may be given to the user. This warning process is performed by an audible display such as a buzzer sound, or by recording a predetermined warning message using the recording section 6.

Furthermore, although a facsimile device has been exemplified above, the above technique can be applied to telephones and other data communication devices, and can be expected to have the effect of suppressing unnecessary dialing.

In the case of a data communication device, a significant procedure signal used in the data communication may be detected in step S4 of FIG. 2 instead of the facsimile procedure signal.

In the case of a telephone, the reverse control is performed; in other words, in step S4, the voice signal of the other station is detected, and in step S6, signals that are not used for voice communication, such as facsimile procedure signals of the other station, are detected. If this is detected, a flag is set in step S7.Then,
If the flag is set in step S7, redial processing is not performed. This prevents the terminal of the other party from operating unnecessarily.

[Effects of the Invention] As is clear from the above, according to the present invention, in a communication device having a redial function that calls the partner station again when a significant signal from the partner station cannot be detected, Means for detecting a signal in a predetermined format different from the signal is provided, and if the signal in the predetermined format is received by the detection means after a call is made, the subsequent redial processing is prohibited, so that the predetermined communication If a signal in a predetermined format that is different from a significant signal for performing a call is detected, further back-dial processing can be prohibited, reducing the burden on the switching equipment in the communication path and communication costs, and further reducing the discomfort caused to the operator at the other station. This has excellent effects such as giving the terminal a certain amount of time and not causing the other station's terminal to operate unnecessarily.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a facsimile device according to the present invention, FIG. 2 is a flowchart showing a call control procedure by the device in FIG. 1, and FIG. 3 is a flowchart showing a different embodiment. be. 1--Operation unit 2--Control unit 3--Communication unit 4--Audio detection unit 5--Reading unit 6--Recording unit 7--Storage unit N--Line

Claims (1)

[Claims] 1) When a significant signal from the other station cannot be detected,
In a communication device having a redial function for re-calling the other party, means is provided for detecting a signal in a predetermined format different from the significant signal, and if the signal in the predetermined format is received by the detection means after the call is made, A communication device characterized in that said redial processing is prohibited.