JPH1117830A - Communication processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply enable discrimination of timing of connection start between communication processors. SOLUTION: A connection request signal is transmitted to another communication processor by way of a communication line and, when it is detected by a control part 30 that a response signal to the connection request signal is supplied from another communication processor, it is discriminated that a connection between the communication processors start and report signals RS1 and RS2 are supplied to a connection start sound signal generation part 50. The generation part 50 generates a chime sound signal CM on the basis of the signals RS1 and RS2 and supplies them to a speaker driving part 60. The driving part 60 generates a sound output signal SD on the basis of the signal CM and supplies it to a speaker 70. A connection start between the communication processors can simply be discriminated and the information can efficiently be transmitted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a communication processing device. More specifically, a connection request signal is sent from the first communication processing device to the second communication processing device via the communication line,
When a response signal to the connection request signal is supplied from the first communication processing device, the connection is started from the first communication processing device assuming that the connection between the first communication processing device and the second communication processing device has been started. By outputting a connection start sound indicating that the connection has started, the connection start can be easily determined.

[0002]

2. Description of the Related Art Conventionally, various information has been transmitted by connecting a data terminal device such as a computer device via a communication line. In this case, for example, a telephone network is used as the communication line, and a communication processing device, for example, a modem (MODEM: Modulator Demodulator) is used between the communication line and the data terminal device. In this modem, a data signal supplied from a data terminal device is converted into a transmission signal and transmitted, and a reception signal supplied via a telephone network is converted into a data signal and supplied to the data terminal device. You.

[0003]

By the way, the conventional modem is provided with a voice monitoring function for confirming the operating state of the modem by voice. However, in this voice monitoring function, a selection signal tone for selecting a modem on the receiving side or a signal tone of a signal transmitted after the connection is started are output as voices. Unable to determine when started.

It is also known to display the operating state of the modem on the screen of the data terminal device. For example, when the connection processing of the communication processing device is started while performing other work, the connection is started. Even if it is displayed on the screen that the connection has been made, the user may not notice that the connection has been started due to the distraction of other work, causing unnecessary connection time and transmitting information efficiently. Can not do.

In view of the above, the present invention provides a communication processing device capable of easily determining the timing of starting connection between communication processing devices.

[0006]

A communication processing device according to the present invention determines connection start with another communication processing device to generate a notification signal, and outputs a notification signal from the connection determination device. And a start sound output means for outputting a connection start sound based on the start sound.

In the present invention, a connection request signal is sent from the first communication processing device to the second communication processing device via a communication line, and a response signal to the connection request signal is supplied from the second communication processing device. When it is determined that the connection between the first communication processing device and the second communication processing device has been started by the connection determination unit of the first communication processing device, a notification signal is generated, and based on the notification signal, For example, a chime sound indicating that the connection has been started is output from the start sound output means of the first communication processing device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a communication processing apparatus according to the present invention will be described below with reference to the drawings. FIG.
1 is a diagram showing a configuration of a communication processing device according to the present invention, for example, a modem. This modem uses a telephone network as a communication line, and is used to connect a computer device or the like as a data terminal device to the telephone network for communication.

As shown in FIG. 1, an NCU (Netwo
(rk control unit) unit 10 is connected. This NCU unit 1
0 indicates ON-hook and OFF-hook operations, transmission of a pulse / dial signal, detection of a call signal indicating that the other party sent from the exchange is being called, a two-wire telephone network and a signal processing unit 20 described below. Are connected to each other.

[0010] In a signal processing section 20 connected to the NCU section 10, a digital signal supplied from a computer device is modulated and converted into an analog transmission signal. This analog transmission signal is transmitted through the NCU unit 10. An analog reception signal supplied from the telephone network via the NCU unit 10 is converted into a digital signal, demodulated, and transmitted to a computer device. Also,
In the signal processing unit 20, a monitor signal MS indicating the operation state of the modem is generated. This monitor signal MS is supplied to a speaker drive unit 60 described later.

The control section 30 controls ON hook and OFF hook operations performed by the NCU section 10 and controls the NCU.
The setting of the pulse dial signal transmitted from the unit 10, the control of the signal conversion and the modulation and demodulation of the digital signal in the signal processing unit 20, and the control of the signal processing unit 20 when the tone dial signal is used. The setting of the tone dial signal is performed. The control unit 30 controls the interface unit 40 to supply a signal to be transmitted from the computer device to the signal processing unit 20 or to supply a signal obtained by demodulation by the signal processing unit 20 to the computer device. Done. In addition, reception and execution of instructions supplied from the computer device via the interface unit 40 are also performed. Further, the control unit 30 detects an answer tone signal indicating that the connection has been made from the receiving modem, and generates a notification signal RS indicating that the connection with the receiving modem has been made. It is supplied to the connection start sound signal generation unit 50. At this time, the control unit 30 sends a result code “CONNECT” in the form of a haze command (AT command) commonly used in modems and developed by Haze Corporation of the United States via the interface unit 40 to the computer device. Is displayed on the screen of the computer device.

The connection start sound signal generator 50 generates a chime sound signal CM for generating a chime sound, for example, based on the notification signal RS. Here, since the chime sound is often referred to as “ping-pong” by combining two pitch sounds, for example, the notification signal RS from the control unit 30 includes an output control signal RS1 for controlling the output of the sound,
A pitch switching signal RS for switching between two pitch sounds
2

FIG. 2 shows the configuration of the connection start sound signal generator 50. In FIG. 2, the notification signal RS1 is a PNP
The notification signal RS2 is supplied to the cathode of the diode 502 while being supplied to the base of the transistor 500.

The transistor 500 controls the supply of power to the inverter buffer 520. The transistor 500 has an emitter connected to the power supply terminal 53.
While connected to 0, the collector is connected to the power supply terminal of the inverter buffer 520 via the resistor 522.
The collector is grounded via a capacitor 524.
A predetermined power supply voltage VDD is supplied from the power supply terminal 530.

The anode of the diode 502 is connected to the resistor 5
The power supply terminal 530 is connected to the power supply terminal 530 via the power supply terminal 04 and is grounded via the capacitor 506. Furthermore, it is connected to a signal input terminal of a Schmitt trigger type inverter 510 via a capacitor 508.

The signal output terminal of inverter 510 is connected to the signal input terminal of inverter buffer 520, and the signal output terminal and signal input terminal of inverter 510 are connected via resistor 512. The power supply terminal of inverter 510 is connected to power supply terminal 530. By the inverter 510, the resistors 504, 512, the capacitors 506, 508, and the diode 502, the oscillation signal SF is output from the signal output terminal of the inverter 510, and the frequency of the oscillation signal SF is switched by the notification signal RS2. One terminal of the capacitor 531 is connected to the power supply terminal 530, and the other terminal of the capacitor 531 is grounded.

The oscillation signal SF output from the inverter 510 is logically inverted by an inverter buffer 520 and output as a chime sound signal CM via a resistor 526 and a capacitor 528. The chime sound signal CM generated by the connection start sound signal generation section 50 is supplied to the speaker drive section 60 shown in FIG.

In the speaker driving section 60, an audio output signal S based on the chime sound signal CM and the above-mentioned monitor signal MS.
OUT is generated. This audio output signal SOUT is
0, a monitor sound indicating the operating state of the modem and a chime sound indicating that the connection with the modem on the receiving side has been made are output from the speaker 70.

Next, the operation will be described. When communication is performed via a telephone network, a transmitting-side modem transmits a pulse dial signal or a tone dial signal in an OFF hook state. On the receiving side, when a calling signal supplied based on the dial signal transmitted from the transmitting side modem is detected, a response signal is generated and supplied from the receiving side modem to the transmitting side modem. When the transmission modem detects that the response signal has been supplied, as described above, the control unit 30 of the transmission modem issues the notification signal RS1 indicating that the connection with the reception modem has been established. , RS2 are generated and supplied to the connection start sound signal generation unit 50.

FIG. 3 shows the operation of the connection start sound signal generation unit 50. When the control unit 30 detects that the response signal has been supplied at the time t1, the signal of the notification signal RS1 shown in FIG. The level is switched from the high level “H” to the low level “L”, and the notification signal RS2 shown in FIG. 3C is switched from the low level “L” to the high level “H”. Here, since the notification signal RS1 is set to the low level “L”, the transistor 500 is turned on, and as shown in FIG.
The voltage of the power supply terminal of 0 is "V1". Further, since the notification signal RS2 is at the high level “H”, the frequency “F1” is output from the inverter 510 as shown in FIG. 3D.
(For example, about 1 kHz) "is output. Further, a chime sound signal CM whose logic is inverted as shown in FIG. 3E is output from the inverter buffer 520 based on the oscillation signal SF.

When the signal level of notification signal RS1 is switched from low level "L" to high level "H" at time point t2, transistor 500 is turned off. At this time, the capacitor 52 is connected to the collector of the transistor 500.
4 is connected, the inverter buffer 52
The voltage of the power supply terminal of 0 is gradually reduced to “0” at time t3. For this reason, the signal level of the chime sound signal CM is gradually reduced, and thereafter, the chime sound signal C
The output of M is stopped.

Next, at time t4, the signal level of the notification signal RS1 is switched from the high level "H" to the low level "L", and the notification signal RS2 is switched from the high level "H" to the low level "L". . Here, since the notification signal RS1 is set to the low level “L”, the transistor 500 is turned on, and the inverter buffer 5
The voltage of the power supply terminal 20 is "V1". Further, since the notification signal RS2 is set to the low level “L”, the frequency of the oscillation signal SF output from the inverter 510 becomes
From frequency "F1" to "F2 (for example, about 900 Hz)"
And the frequency of the chime sound signal CM is also reduced.

When the signal level of notification signal RS1 is switched from low level "L" to high level "H" at time t5, transistor 500 is turned off and time t
At 6, the voltage of the power supply terminal of the inverter buffer 520 and the signal level of the chime sound signal CM are gradually reduced, and thereafter, the output of the chime sound signal CM is stopped.

As described above, the chime sound signal CM is output during the period from time t1 to time t2 (for example, 90 to 110 m).
s) The frequency is increased and the signal level is reduced from time t2, and then the output is stopped. At time t4
To the time t5 (for example, 140 to 160 m
s) The frequency is lowered and the signal level is lowered from time t5, and then the output is stopped. At time t2
The period from to t4 is, for example, 490 to 510 ms.

For this reason, based on the chime sound signal CM, a chime sound of “Pin” having a high pitch is output from the speaker 70 at times t 1 to t 3, and a chime sound of “Pon” having a low pitch at times t 4 to t 6. Output from the speaker 70.

As described above, according to the above-described embodiment,
Since the connection start between the modem on the transmitting side and the modem on the receiving side can be easily determined by a chime sound, the information can be transmitted efficiently by immediately starting the transmission of the information after the determination of the connection start. . Note that the connection start sound signal generation unit 50 of the above-described embodiment is not limited to the configuration shown in FIG. 2 as long as it can generate the chime sound signal CM based on the notification signal RS. Also,
The chime sound is not limited to the sound switching between two pitch sounds. Further, it goes without saying that the communication line, the communication processing device or the data terminal device is not limited to a telephone network, a modem or a computer device.

[0027]

According to the present invention, the start of connection between the first communication processing device and the second communication processing device can be easily determined based on the connection start sound. By starting transmission, information can be transmitted efficiently.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a modem according to the present invention.

FIG. 2 is a diagram illustrating a configuration of a connection start sound signal generation unit.

FIG. 3 is a diagram showing the operation of the modem according to the present invention.

[Explanation of symbols]

 Reference Signs List 10 NCU unit 20 Signal processing unit 30 Control unit 40 Interface unit 50 Connection start sound signal generation unit 60 Speaker drive unit 70 Speaker

Claims (1)

[Claims] 1. A communication processing device for transmitting a signal to another communication processing device via a communication line, comprising: a connection determining means for determining a start of connection with the other communication processing device and generating a notification signal; And a start sound output unit for outputting a connection start sound based on a notification signal from the connection determination unit.