JPH03250850A - Subscriber's equipment - Google Patents

Abstract

PURPOSE:To discriminate the reason of usual error by displaying the arrival of a call when a catch-phone signal comes during data communication and replying the call automatically. CONSTITUTION:When a telephone set C makes a call to a subscriber's equipment B during data communication, a catch-phone signal (a) comes to the subscriber's equipment B, resulting that the catch-phone signal (a) is detected by a catch- phone signal detection circuit 6 and sent to a CPU 7. The CPU 7 detects it as an interrupt signal and allows a display section 10 to be displayed and a changeover switch SW is thrown to the position of a speech circuit 3 to make communication with a telephone set C. When the catch-phone signal comes during the data communication in this way, the incoming display is implemented and the call is replied automatically, the reason why a communication error takes place is discriminated during the data communication.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for receiving a call waiting signal during data communication.
This relates to in-home equipment that responds to this.

[Prior Art] In conventional in-home equipment that has this type of call function and data communication function, when a telephone line is captured and data communication is performed during a call, a predetermined key is pressed to switch to data communication mode. Data communication is being performed with the data communication device of the switching partner. If a call-waiting signal arrives from the exchange during data communication, a communication error occurs, and the telephone line being captured is released.
[Problems to be Solved by the Invention] When the above-mentioned conventional home equipment receives a call waiting signal, a communication error occurs and the line is released. There was a drawback that the caller who received the call could not talk to this home device.Also, when a call waiting signal arrived, this home device did not display the incoming call, so why did a communication error occur during data communication? There was also the drawback that it was not possible to determine the reason why this was done.

For this reason, it is customary for subscribers of such home devices not to sign up for a call waiting service contract.

[Means for Solving the Problems] In order to solve such problems, the in-home equipment according to the present invention receives a call waiting signal that arrives from the exchange during data communication, displays an incoming call, and automatically responds to the incoming call. The device is equipped with means for transitioning to a talking state in response to the call.

[Function] When a call waiting signal arrives during data communication, an incoming call is displayed and the call is automatically answered [Embodiment] Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of in-home equipment according to the present invention. In the figure, 1 is a central office line, 2 is a central office line interface circuit that performs loop closing, sending out dial signals, and incoming call detection, etc., 3 is a communication circuit, and 4 is a data center device and a data center via the central office line 1, which will be described later. 5 is a gate array circuit; 6 is a call-waiting signal detection circuit for detecting a call-waiting signal; 7 is a CPU that controls the entire home equipment; 8 is a ROM in which a program is stored; 9 is a RAM that stores various data, 1
0 is a display section that displays incoming calls, etc. In addition, SW is a changeover switch that switches between data communication and phone calls, )(
S is a handset, SP is a speaker, a is a call waiting signal, and b is a switching signal. Further, the CPU 7 is provided with an interrupt terminal INT for detecting the call waiting signal a as an interrupt signal, a clock terminal CLK for sending out a clock signal for data transmission, a data transmission terminal TXD, a data reception terminal RXD, etc. .

Next, FIG. 2 is an explanatory diagram for explaining the present invention in detail. In the figure, 20 is an exchange, A is the data center device described above, B is an in-home device that has a call waiting service contract and is equipped with a call function and a data communication function, and C is an in-home device that is connected to an in-home device B during data communication. C is a data signal.

Next, an outline of the operation of this household device will be explained based on FIGS. 1 and 2. When performing data communication with home equipment B or data center equipment A, the user goes off-hook and operates a dial key (not shown) to call up data center equipment A. At this time, the changeover switch SW has been switched to the call circuit 3 side, so when the data center device A responds, the call state is established. After that, when a predetermined key is pressed to perform data communication, the changeover switch SW
is switched to the modem circuit 4 side, and as a result, data communication with data center device A can be performed.

During this data communication, when telephone aC makes a call to home equipment B, call waiting signal a will arrive at home equipment B, and as a result, call waiting signal a is detected by call waiting signal detection circuit 6 and transmitted to CPU 7. be done. The CPU 7 detects this as an interrupt signal, displays the incoming call on the display section 10, and switches the selector switch SW to the call circuit 3 side to make a call with the telephone C.

Next, FIG. 3 is a timing chart showing the timing of each part of this household equipment. In the same figure, (a) shows the timing of the call waiting signal a, and (b) shows the timing of the signal that the call waiting signal detection circuit 6 sends to the interrupt terminal INT of the CPU 7 when the call waiting signal a is received. <c) The figure shows call waiting signal a
shows the timing of the hooking signal in response to.

Next, FIG. 4 is a flowchart illustrating the operation of this household equipment B. The detailed operation of the CPU 7 that controls the indoor device B will be explained based on FIGS. 3 and 4.

First, in step 100, the data center equipment WA
Data communication is performed between the device and the home device B. Next, in step 101, the arrival of the call waiting signal a is determined by the telephone C making a call to the home device B during this data communication, and when this arrives and it is determined as "Y", the process proceeds to step 1゜2. An incoming call is displayed on the display section 10.

This call waiting signal a is detected by the call waiting signal detection circuit 6 and notified to the CPU 7. First, the call waiting signal detection circuit 6 detects the rising edge of the call waiting signal a at timing t1, and the CPU 7 detects the rising edge of the call waiting signal a.
An interrupt signal is sent to the interrupt terminal INT of 7. C
When the PU7 receives this interrupt signal, it executes interrupt processing, and during this processing, it samples the timings t1 to t of the call waiting signal a, and as shown in Fig. A reset signal is sent to the call waiting signal detection circuit 6 to reset this interrupt signal.

In this way, an interrupt signal is detected and an incoming call is displayed.
Next, in step 103, the data communication is terminated, a switching signal is sent to respond to the incoming call, the changeover switch SW is switched to the call circuit 3 (1!!l), and a call waiting signal is sent to the office line interface circuit 2. Instructs to send out a hooking signal in response to call a, and causes the exchange 20 to send this signal to respond to the incoming call.Then, in step 104, a call is made between the home equipment B and the telephone C.

If the arrival of the call waiting signal a cannot be detected in step 101 and the determination is "N", data communication between the data center device A and this in-home device B is continued in step 105, and data communication is continued in step 106. It is determined whether the call-waiting signal a has arrived, and if the result is "Y", the process ends; if the result is "N", the process returns to step 101, and whether or not the call waiting signal a has arrived is determined again.

In conventional in-home equipment, if a call/sochiphone signal a arrives during communication, a communication error occurs and the call waiting signal a cannot be responded to. Although an error occurs, this call waiting signal a
The system is configured so that a corresponding display is displayed and a response is automatically made.

In this embodiment, when a call waiting signal a is received, an incoming call is displayed and the call is automatically answered, or only an incoming call is displayed and the response is left to the receiver's discretion. It may be configured as follows.

[Effects of the Invention] As explained above, the in-home equipment of the present invention is configured to display an incoming call and automatically respond when a call waiting signal arrives during data communication, so that the reason for the communication error can be determined. This also has the effect that a caller to a home device during data communication can talk to the home device.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the in-house equipment of the present invention, Fig. 2 is an explanatory diagram explaining this operation, Fig. 3 is a timing chart of this in-home equipment, and Fig. 4 is an operation of this in-home equipment. It is a flow chart explaining. 1-... Office line, 2... Office line interface, circuit, 3... Call circuit, 4... Modem circuit, 5...
...Gate array circuit, 6...Call waiting signal detection circuit, 7... -CPU, 8...R, OM, 9
...RAM, 10 ...Display section, SW ... Changeover switch, ...Call waiting signal, b ...Switch (5 possible).

Claims (1)

[Scope of Claims] In-home equipment equipped with a telephone call function and a data communication function, which receives a call phone signal from an exchange during data communication, displays an incoming call, and automatically responds to the incoming call to enter a talking state. In-home equipment characterized by being equipped with a means for migrating.