JPS61148944A - Telephone set - Google Patents

Abstract

PURPOSE:To prevent a talk being a content not wanted to be lisened to from giving to an opposite party by providing a switch to a telephone set to shut or attenuate selectively a voice output from a transmitter. CONSTITUTION:A transmitter T of a model 600 telephone set is provided with a parallel circuit comprising a switch SW and a resistor and a voice recognition circuit LSI. A specific key word such as 'hallow' and 'please wait for a moment' is registered on the voice recognition device LSI. When a massage 'please wait for a moment' is uttered during talking, the LSI recognizes it to turn off the SW and attenuate the voice output thereby shutting off the talk from the opposite party. When a message 'hallow' is uttered, the LSI recognizes it to turn on the SW and restart the talking with the opposite party. Then the transmission of talking not wanted to be listened to by the opposite party during talking is prevented surely.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a telephone set, and, for example, to a technique that is effective when used in a telephone set for a single subscriber.

[Background technology]

The 6008 telephone is known as one of the telephones for single subscribers (for example, Maruzen, published on April 20, 1970).
(See page 230 of Electronics and Communication Engineering Pocket Book 1).

In single-subscriber telephones, when discussing something that you do not want the other party to hear during a call, it is customary to cover the transmitter with your hand. However, inconveniences often arise, such as the contents of the consultation being interrupted by the other party.

(Object of the Invention) An object of the present invention is to provide a telephone equipped with a novel II function.

・The above and other objects and novel features of the present invention will become clear from the description of this specification and the accompanying drawings. A brief explanation is as follows.

That is, by providing a switch to selectively cut off or attenuate the audio output from the transmitter,
This prevents consultations, etc. that you do not want to hear from being conveyed to the other party.

[Embodiment 1] FIG. 1 shows a circuit diagram of an embodiment of the present invention.

In the figure, one embodiment is shown in which the present invention is applied to a 600-type rotary dial telephone, although it is not particularly limited thereto. In addition, in the figure, terminals connecting each component are omitted and drawn in a simplified manner. Terminals L1 and L2 are connected to telephone cables. Resistors R1 and R2 and capacitor C4 provided on the terminal Ll side are used to prevent deterioration of communication characteristics due to an increase in transmitter current.
Configure dB band. This is the subscriber cable resistance 1
．． Inserted if the distance is 5km or less. Bell B is driven by a 16 Hz signal through capacitor C1. Hook switches H3I and R52 are opened during a call, as shown in the figure. Further, the switches Di and DI are dial switches, and the switch D1 is closed while the dial is rotating, and a pulse signal is generated by opening and closing the switch Di. The coil, together with a balanced circuit network consisting of a transmitter T, a receiver R, resistors R4, R5, and capacitors C2, C3, constitutes a side sound protection circuit. The series circuit of varistor VR and resistor R6 connects the receiver R to prevent click noise.
are installed in parallel.

In the above 600 type telephone circuit, in order to selectively interrupt the voice during a call, the above-mentioned transmitter T is equipped with a switch SW.
Although not particularly limited, a parallel circuit of resistor R7 is inserted in series. The switch SW is brought into the open state by operating a button switch or the like provided on the transmitter, although this is not particularly limited. As a result, the audio output of the transmitter 'r is attenuated. In other words, during a call,
When performing a call or the like that you do not want the other party to hear, switch SW is opened by operating a button provided on the transmitter T. As a result, the audio output of the transmitting BT is controlled by the resistor R.
7 to prevent the content from being overheard by the other party. In addition, the above resistance R
7 to form a DC loop and transmit a type of noise that cannot be heard by the other party, giving the impression that the telephone line has been disconnected. Prevent relaxation.

Note that instead of the resistor R7, a coil or the like may be used to flow sufficient direct current to maintain the line and attenuate the sound from the transmitter T. Furthermore, instead of such sound attenuation, an electronic sound generation circuit or the like may be provided and switched to this.

[Embodiment 2] FIG. 2 shows a circuit diagram of another embodiment of the present invention. In this embodiment, the on/off control of the switch SW is automatically performed. That is, a speech recognition device LSI is provided and specific keywords such as "Please wait" and "Moshimoshi" are registered. As a result, if you say "Please wait 1" during a call, the voice recognition system will recognize this and turn off the switch SW in the same way as described above. and voice recognition device LS
I can recognize this and turn on the switch SW again to resume the conversation with the other party.

The above-mentioned voice recognition device LSI is manufactured by Ohmsha, 1982, for example.
Published on November 30th, “Basics of Speech Information Processing 1” Shuzo Saito,
Since it is well known from Kazuo Nakata, pages 181 to 207, detailed explanation thereof will be omitted. Note that the above-mentioned speech recognition device uses an information processing device having microcomputer functionality.

Therefore, for multi-functional telephones such as speed dialing and memory functions, an efficient system configuration can be realized by making the mark "crokonbuke" available.Furthermore, by using the voice recognition device mentioned above, By registering keywords, it is also possible to add a function to prevent prank calls.

〔effect〕

(1) By inhibiting or attenuating the audio output of the transmitter using a switch, it is possible to reliably prevent the transmission of audio that you do not want the other party to hear during a call.

(2) By controlling the Swift $fJ using a voice recognition device, it is possible to obtain a telephone that is easy to use.

Although the invention made by the present inventor has been specifically explained above based on examples, this invention is not limited to the above examples, and can be modified in various ways without departing from the gist thereof. Needless to say, for example, the switch SW may be configured to identify the frequency signal of a specific dial key using a filter circuit or the like in a smartphone and control the frequency signal.

[Application field]

The present invention can be used not only for Mt1 telephones for single subscribers but also for so-called key telephones and the like.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing one embodiment of the invention, and FIG. 2 is a circuit diagram showing another embodiment of the invention. B...Telephone bell, T...Telephone, R...Telephone receiver, LSI-...
Speech recognition device Figure 1 Figure 2

Claims (1)

[Claims] 1. A telephone device 2 characterized in that it includes a switch that selectively attenuates or prohibits the audio output of the transmitter; The switch is a voice recognition device that receives an audio signal from the transmitter. 2. The telephone set according to claim 1, wherein the telephone set is controlled by a specific voice signal recognized by a user.