JPS6181069A - Telephone set - Google Patents

Abstract

PURPOSE:To report the length of a call time by starting time counting in response to the detection signal which is obtained when a telephone set is connected to a central office and issuing a recognizable signal, which indicates that the counted time exceeds a preliminarily determined time, to both of an originating subscriber and a terminating subscriber when the counted time exceeds the preliminarily determined time. CONSTITUTION:A switch 5 is connected to a central office 6. A connection detecting circuit (DET)7 is connected to the output of a dial mechanism 4 of this telephone set, and a time counting circuit (TIM)8 is connected to the output of this circuit 7, and a sound synthesizing circuit (SYN)9 is connected to the output of the time counting circuit 8. When a speaker hooks off the receiver, the switch 5 is turned on; and when the connection is detected by the detecting circuit 7, the time counting circuit 8 starts time counting, and the speaker dials. When the counted time of the time counting circuit 8 reaches a prescribed value, the sound synthesizing circuit 9 is started to synthesize and transmit a prescribed message signal. This message signal passes a mixing circuit 10 and reaches the dial mechanism 4 and a hybrid circuit 1 of the originating telephone set and is outputted from the receiver of the originating subscriber. The message signal is outputted from the telephone set of the terminating subscriber through the mixing circuit 10, the switch 5, and the central office 6.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a telephone that is directly connected to a central office line and has a function of notifying both the caller or receiver and the caller of the call time. Regarding.

Conventional telephones and telephone switching networks to which telephones are connected are constructed with an emphasis on not interfering with telephone call services. Therefore, the call can be made successfully, but the plain text that informs both the caller or both the caller and the receiver how long the call will last is not available in the existing telephone equipment or its switching network. It wasn't there.

[Conventional technology]

Conventionally, call time has been monitored either manually or by providing a warning means such as equipping the PBX with a timekeeping function and combining it with a dedicated functional telephone to display the elapsed time on the telephone. It is.

[Problem that the invention seeks to solve]

If call time is monitored manually, not only is it extremely troublesome to keep track of time during the call, but unless one pays conscious attention, it is easy to get distracted by the content of the call and forget about the elapsed time. Furthermore, providing a PBX with a timekeeping function increases the burden on the control means as the number of subscribers increases, making the control more complex.

[Means for solving problems]

The present invention provides a telephone that can solve the above-mentioned problems, and its means include, in a telephone directly connected to a central office line, a detection circuit that detects that the telephone is connected to a central office; Recognizes a clock circuit that measures time in response to the output signal of the detection circuit and generates a signal representing a predetermined elapsed time, and an output signal of the clock circuit. It has the means to produce the ability, and is structured and designed.

[Effect]

According to the telephone set of the present invention, the telephone set is connected to the central office.
starts time measurement in response to a detection signal indicating that the time has elapsed, and issues a recognizable signal to the sender or both the sender and the receiver at a time when a predetermined period of time has elapsed. It lets you know how long the call is. The central office may be relieved from notifying the caller or caller and recipient of such call times.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the invention. In this figure, ■
is a hybrid throat circuit (HYB) connected to the mouthpiece 2 and the earpiece 3, and 4 is a dial mechanism (DL) (for example,
5 is a switch (SW), which are the basic elements of conventional telephones. , ) Switch 5 is the telephone office 6
It is connected to the. A connection detection circuit (DET) 7 is connected to the output of the dial mechanism 4 of this telephone, a timing circuit (TIM) 8 is connected to the output of the detection circuit 7, and a speech synthesis circuit (SYN) is connected to the output of the clock circuit 8. ) 9 and connect the output of the voice synthesis circuit 9 to the output of the dial mechanism 4 and the switch 5.
The unique feature of the present invention is that it is configured to inform the caller and receiver of the call time by connecting to the mixing circuit 10 interposed between the caller and the receiver.

The connection detection circuit 7 checks and detects the 400Hz connection person transmitted from the telephone office 6 when the telephone is connected to the line (office line) by turning on the switch 5, or
Or, after the caller dials, it is detected that the telephones of both the caller and receiver are connected by detecting the disappearance of the ring hack tone (see Figure 2) sent from the central office exchange to the caller. It may be configured as follows.

The clock circuit 8 is an existing circuit made of an LSI or the like.

The speech synthesis circuit 9 is composed of an LSI and a ROM that stores message-specific data.

The mixing circuit consists of a resistor circuit shown in FIG.

Next, the operation under the above configuration will be explained.

When the speaker picks up the receiver, the switch 5 is turned on (Step S1 in Figure 4), and when the detection circuit 7 detects this connection, the timer circuit 8 starts measuring time (Step S2 in Figure 4) and the speaker starts talking. (Step S3)
).

Then, when the timer circuit 8 has timed a predetermined time, the voice synthesis circuit 9 is activated to synthesize and send out a predetermined message signal (step S4).

The message signal passes through the mixing circuit 10, reaches the dialing mechanism 4 of the caller's telephone, and the hybrid circuit 1, and is output from the caller's handset. Further, the message signal is outputted from the receiver's telephone via the mixing circuit 10, the switch 5, and the telephone office 6.

The message sound is, for example, a voice saying "10 minutes have passed."

FIG. 5 shows another embodiment of the invention. This example is the first
The first point is that the mixing circuit lO of the embodiment shown in the figure is interposed between the receiver output of the hybrid circuit 1 and the receiver.
There are differences from the illustrated embodiment.

Therefore, other identical components will be given the same reference numerals and their descriptions will be omitted.

The effect of this embodiment differs from the embodiment of FIG. 1 in that the message tone is given only to the caller.

In addition, in the above embodiment, an example is described in which a call time notification signal to the caller or both the caller and the receiver is output as voice from the handset, but the notification output to the busy person is, for example, A visual display may be provided in response to the output of the clock circuit.

〔Effect of the invention〕

As described above, according to the present invention, the following effects can be obtained: 1. Call time can be recognized only on the telephone side; 2. Therefore, the central office can be freed from processing for recognition. It will be done.

[Brief explanation of the drawing]

1 is a diagram showing an embodiment of the present invention, FIG. 2 is a waveform diagram of a ringback tone used in the embodiment of FIG. 1, and FIG. 3 is a diagram showing an example of the mixing circuit of the embodiment of FIG. 1. FIG. 4 is a diagram showing an example of the operating procedure of the embodiment shown in FIG. 1, and FIG. 5 is a diagram showing another embodiment of the present invention. In the figure, 1 is a hybrid circuit, 4 is a dial mechanism, 5 is a switch, 6 is a telephone office, 7 is a detection circuit, 8 is a clock circuit,
9 is a speech synthesis circuit, and 10 is a mixing circuit. Patent applicant: Fujitsu Ltd.
Physician Examination Koshibu (Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5)

Claims (4)

[Claims] (1) In a telephone that is directly connected to a central office line, there is a detection circuit that detects that the telephone is connected to the central office, and a timer that measures time in response to the output signal of the detection circuit to determine the elapsed time. 1. A telephone set comprising: a clock circuit that generates a signal representing the clock; and means for outputting the output signal of the clock circuit in a recognizable manner. (2) The means includes a voice synthesis circuit for synthesizing and outputting a predetermined message signal in response to the output signal of the clock circuit, and a telephone for outputting the message signal of the voice synthesis circuit from at least a receiver of the telephone. 2. The telephone set according to claim 1, further comprising a mixing circuit connected to a telephone communication circuit of the telephone set. (3) The telephone set according to claim 2, wherein the mixing circuit is provided closer to the central office line than the hybrid circuit of the telephone set. (4) The telephone set according to claim 2, wherein the mixing circuit is provided between the receiving output of the hybrid circuit of the telephone set and the handset.