JPH01174093A - Electronic key telephone system - Google Patents

Abstract

PURPOSE:To synchronize an interval of an incoming signal from a trunk line with an incoming ring signal outputted from a telephone set even if lots of accommodated trunk lines are employed by allowing a main trunk line control section to monitor incoming signals of all accommodated trunk lines and to control a channel changeover switch giving an incoming ring signal to a telephone set. CONSTITUTION:When an incoming signal is supplied from a trunk line A to a trunk line incoming detection/dial output section 1A, the trunk line incoming detection/dial output section 1A receives the incoming signal and outputs the incoming signal to a main trunk line control section 2A, then the main trunk line control section 2A outputs the trunk line data being the incoming signal from the trunk line 1A to a control section 5A. Thus, the control section 5A judges to which telephone set an incoming ring signal is to be outputted from the trunk line data sent with the incoming signal and outputs the telephone set data to the main trunk line control section 2A, then the main trunk line control section 2A, based on the telephone set data, outputs the ring signal synchronized with the interval of on/off of the incoming signal from the trunk line A to a channel of the telephone set, then the channel changeover switch 3 is turned on/off.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the ring tone output from a telephone and the central office line (
The present invention relates to an electronic button telephone device that can synchronize incoming signals from an exchange (exchange center).

BACKGROUND OF THE INVENTION FIG. 2 shows the structure of a conventional electronic key telephone device.

In FIG. 2, when an incoming signal is supplied from the office line A to the office line incoming call detection/dial output unit IA, the office line incoming call detection/dial output unit IA receives the incoming signal, and the office line control unit 2△
1 incoming call signal, the office line control section 2 outputs office line data, which is the incoming signal from the office line A, to the control section 5.

Therefore, the control unit 5 determines to which telephone the incoming ringing signal is to be output based on the central office line data to which the incoming call signal has been sent, and outputs the telephone data to the central office line controlling unit 2. Based on the telephone data, the call path selector switch 3 is turned on/off in order to output an incoming call ringing signal synchronized with the on/off interval of the incoming call signal from the office line A to the call path of the telephone.

The office line control unit 2 can also receive dial data from the control unit 5 and send dial signals to the office lines A and C via the office line incoming call detection/dial output units 1A to IC.

Problems to be Solved by the Invention However, as shown in FIG.
It is possible to synchronize the interval of the incoming signal from C and the incoming call ringing sound output from the telephone set, but when the number of accommodated station lines increases, multiple station line control units 2 shown in FIG. As a result, there was a problem in that it was impossible to synchronize the interval of the incoming call signal from the central office line with the incoming ring tone output from the telephone.

The present invention solves these conventional problems, and uses the same circuit configuration for systems with a small number of station lines to accommodate a large number of station lines. The object of the present invention is to provide an excellent electronic button telephone device that can synchronize the

Means for Solving the Problems In order to achieve the above object, the present invention provides a communication line that receives incoming call signals from all central office line incoming call detectors and outputs an incoming ringing signal to the communication path of the corresponding telephone. A main office line control unit that controls the switch and outputs a dial signal to a part of the office line, and at least one sub-office line control unit that outputs a dial signal to the rest of the office line. It is something.

Therefore, according to the present invention, the main office line control section monitors the incoming signals of all the receiving station lines, and controls the communication path changeover switch for outputting the incoming ringing signal to the telephone set, so that the main office line The on/off interval of the incoming signal from
This has the effect of being able to synchronize with the on/off interval of the ringtone of the telephone.

Furthermore, by adding a sub-station line control section, the number of station lines that can be accommodated can be increased.

Example FIG. 1 shows the configuration of an embodiment of the present invention.

In FIG. 1, IA to IF are office line incoming call detection/dial output units, which detect incoming call signals supplied from the corresponding office lines A and F, and detect the incoming call signals supplied from the corresponding office lines A and F, respectively.
It outputs a dial signal to C.

The two are the main office line control unit, which receives all incoming signals from the office line incoming call detection/dial output units IA to IF, and outputs from which office line A or F the incoming signal was received to the control unit 5A. Then, it turns on/off the call path selector switch 3 based on the telephone data corresponding to the incoming call signal output from the controller 5A, and also detects and dials an incoming call on the central office line based on the dial data from the five controllers. It outputs dial signals to sections IA to IC.

Reference numeral 4 denotes a sub-office line control section, which detects incoming calls on the office line based on dial data from the control section 5A and performs dial output sections ID to I.
This outputs a dial signal to F.

5A is a control unit that determines which telephone to output an incoming ringing signal based on the office line data from the two main office line controllers, and outputs the telephone data to the two main office line controllers. , dial signals to be output to office lines A and F are output to main and sub-office line control units 2 and 4.

Next, the operation of the above embodiment will be explained.

In Fig. 1, when an incoming call signal is supplied from the office line A to the office line incoming call detection/dial output unit IA-\, the office line incoming call detection/dial output unit IA-\
The dial output unit IA receives the incoming signal and outputs the incoming signal to the two main office line controllers, so the two main office line controllers transmit the office line data, which is the incoming signal from the office line IA, to the controller 5A. Output to.

Therefore, the control unit 5A determines whether to output an incoming ringing signal to the telephone set from which the incoming call signal was sent, based on the central office line data, and outputs the telephone data to the two main office line control units. Based on the telephone data, the line control unit 2A turns on/off the communication path changeover switch 3 in order to output an incoming ringing signal synchronized with the on/off interval of the incoming signal from the office line A to the communication path of the telephone. .

In addition, the main and sub office line control units 2A and 4 receive dial data from the control unit 5A, and send dial signals to the office lines A and F via the office line incoming call detection/dial output units IA to IF. can.

In this way, according to the above embodiment, all the central lines A,
Since the incoming signal of "Ii" is received by two main station line controllers,
It is possible to synchronize the interval between the incoming signal from the office lines A and F and the incoming ringing tone output from the telephone.

In addition, if the number of accommodated station lines is large, by adding the sub-station line control section 4, it is possible to synchronize the interval between the incoming signal from the central office lines A and F and the incoming ring tone output from the telephone. .

Although we have explained the example in which the two main station line controllers receive all incoming signals and also output dial signals, it is possible to have the sub-office line controller receive all incoming signals and all dial signals. You can.

Effects of the Invention As is clear from the above embodiments, the present invention receives incoming call signals from all central office line incoming call detectors and controls a call path switch that outputs an incoming ringing signal to the corresponding telephone path. In addition, since it is equipped with a main office line control unit that outputs a dial signal to a part of the office line and at least one sub-office line control unit that outputs a dial signal to the rest of the office line, the office line This has the effect of being able to synchronize the interval between the incoming call signal and the ringing tone output from the telephone.

In addition, if there are a large number of station lines to accommodate, by adding a sub-station line control unit, it is possible to synchronize the interval between the incoming call signal from the central office line and the incoming ring tone output from the telephone. .

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the configuration of an electronic key telephone device according to an embodiment of the present invention, and FIG. 2 is a block diagram of the configuration of a conventional electronic key telephone device. 1A~IF... Office line incoming call detection/dial output section, 2 people 1.・Main office line control section, 3...Call changeover switch, 4.
... Substation line control section, 5A, ... Control section.

Claims (1)

[Claims] a plurality of office line incoming detection units that detect incoming signals on the office line; and receiving all incoming signals from the plurality of office line incoming detection units;
a main office line control section that controls a call path switch that outputs an incoming ringing signal to the communication path of a corresponding telephone, and outputs a dial signal to a part of the plurality of office lines; at least one sub-office line control section outputting a dial signal to the rest; and outputting telephone data based on office line data from the main office line control section to the main office line control section, and transmitting dial data. An electronic button telephone device comprising: a control unit that outputs output to the main and sub-station line control units.