JPS63209349A - Communication equipment - Google Patents

Abstract

PURPOSE:To simplify the constitution and to reduce the cost by using a drive means so as to drive a communication means for communication in response to a call signal and informing the presence of a call. CONSTITUTION:The DC component of a call signal coming from a line is cut off by a capacitor 1, rectified by a diode bridge 3, smoothed by a capacitor 15 and becomes a power supply of a ringer IC 5. The IC 5 generates an output to energize a sounder when the voltage across the capacitor 15 exceeds the operating voltage. In this case, since the contact 13 of the hook switch is closed and the contact 14 is opened, the output of the IC5 is sent to a handset 12 to energize the handset 12. When the telephone set hooks off, contacts 7, 14 of the hook switch are closed and contacts 4, 13 are opened, the line is switched from the IC5 to the channel IC9 and acquired. Moreover, in the handset 12, the IC5 is switched into the IC9 as the substantial handset.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a communication device that performs communication.

[Prior Art] Conventionally, this type of device, for example, a telephone, operates a ringer 13 in response to a call signal from a line to generate a ring tone to notify that there is a call from the line, as shown in FIG. .

[The problem that the invention is trying to solve, however,
In addition to the linker 13, a telephone usually has a sounding body, such as a transmitter 12 or a receiver 11, that converts a signal for making a call into sound and outputs it. Providing a separate ringer 13 for sending out a ringing tone in addition to these sounding bodies has the problem of complicating the configuration of the device and increasing cost.

[Means and effects for solving the problem] According to the present invention, the communication means for making a telephone call is driven by the driving means in response to a call signal to notify that there is a call. It is possible to provide a simple and low-cost communication M.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to the drawings. In the following embodiments, a telephone will be described as an example, but the present invention is not limited to a telephone, but can be applied to any communication device having a communication means, such as a facsimile device with a built-in telephone, a telex device, etc.

FIG. 1 is a block diagram showing the structure of the tree layer side.

In Fig. 1, 1 is a capacitor for cutting the DC component of the calling signal, 2 is a resistor for ensuring impedance for the calling signal, 3 is a diode bridge for rectifying the calling signal, 4, 7, 13.14
are the contacts of the same hook switch.

Further, 5 is a ringer IC 16 which generates a signal to prevent the sounding device from ringing when a call signal arrives, a capacitor for cutting DC, 8 is a guioto bridge, and 9 is a communication path IC 2.
10 is a Guiala IC 111 for sending a selection signal, a telephone receiver;
12 is a transmitter, 13 is a ringer sounding body, and 15 is a rectifying capacitor.

In the above configuration, when the telephone is on-hook, contacts 4 and 13 of the hook switch are in the open state, and contacts 7 and 14 are in the open state, as shown in the time chart of FIG.

A calling signal arriving from the line is converted into DC by a capacitor 1, rectified by a Guior bridge 3, smoothed by a capacitor 15, and becomes a power source for a linker IC5. The ringer IC 5 generates an output for making the sounding body sound while the voltage across the capacitor 15 exceeds the operating voltage.

Now, the hook switch contacts 13 are closed and 14 is open, so the output of the ringer IC is transmitted to the transmitter 12 and the transmitter 12 is turned off. When the telephone is off-hook, hook switches 7 and 14 and 4 and 13 are opened, so the line is switched from the linker IC to the communication path IC and captured. Also, the transmitter 12 is switched from the linker IC to the communication path IC side,
It will now function as an original transmitter.

In the embodiment described above, the transmitter 12 is used to output a ringing tone, but if the receiver is a piezoelectric element, as shown in FIG. It can be used as a ringer to announce the arrival of

As explained above, by using a piezoelectric element in the transmitter or receiver and switching the transmitter or the receiver using a hook switch, there is an effect that the ringer that was conventionally required can be eliminated.

[Effects] As described above, according to the present invention, the configuration of the device can be simplified and a low-cost communication device can be provided.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the configuration of the actual h1 (example), Figure 2 is a time chart diagram showing the operation of the hook switch in Figure 1, and Figure 3 is a diagram showing the configuration of an example of the hook switch.
The figure shows the structure of another embodiment, and FIG. 4 shows the structure of a conventional telephone. 1.6.15 is a capacitor, 2 is a resistor, 3.8 is a diode bridge, 4, 7.13.14 is a hook switch contact, 5 is a ringer IC59 is a communication line IC, 10 is a tireer TC111 is a receiver, 12 is a transmitter.

Claims (1)

[Scope of Claims] The present invention is characterized by having a communication means for making a telephone call, and a driving means for notifying that there is a call from the line by operating the communication means in response to a call signal from the line. communication equipment.