JPS6329321Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a telephone auxiliary device for deaf and dumb people that enables them to communicate with fellow deaf and dumb people or normal people over the telephone. In the current situation where telephone networks have developed and spread significantly and are frequently used in daily life and work, the approximately 300,000 deaf and dumb people in Japan are unable to benefit from them at all. . surely,
Telephones with volume controls or low-frequency ring bells exist for the hearing-impaired, but they are of no use to the deaf-mute, and the handicap required for them is extremely large. Therefore, Japanese Patent Application Laid-Open No. 55-44283 proposes a conversation device that is attached to a telephone set and allows a conversation to be made by operating a switch and lighting a lamp. However, in this case, because the key switches to which phonetic characters are assigned are arranged, the operation panel is bulky, and therefore cannot be used as a portable device that allows dialogue from outside. The present invention focuses on this point and aims to provide a portable telephone auxiliary device for the deaf and dumb that allows even the deaf and dumb to talk freely. Hereinafter, embodiments of the present invention will be described based on FIGS. 1 to 7. First, the telephone auxiliary device for the deaf and dumb according to this embodiment basically consists of a sound transmitter 1 set in the transmitter of a telephone, and a sound receiver 6 set in the receiver of the telephone set, which are separated from each other. It is a portable type with a flat case shape. Incidentally, when making a telephone call, it is a condition that the other party also has such a transmitter/receiver 1, 6. On the surface of the case of the sound transmitter 1, there are push button switches _S11 to _S15 , _S21 to _S25 , _S31 to _S35 , as shown in FIG.
_S41 to _S45 are arranged, and above them are not just phonetic characters, but words, symbols, uses, etc. for communication or dialogue are written, thereby giving each message a meaning for communication. For example, pushbutton switch S ₂₃ is pressed to say ``destination,'' S <sub>32</sub> is pressed when an ``accident'' occurs, and S ₃₅ and S ₄₅ are pressed to perform Morse communication. S ₄₁ and S ₄₂ mean the respective addition numbers based on the number of times of pressing. _S44 is arbitrarily assigned a meaning by the interlocutors and written down above it. Note that if mat switches are used instead of these pushbutton switches, the buttons can be arranged flat without protruding. A signal sound generation circuit 11 (described later) and a battery 12 are built into the case of the sound transmitter 1, and a battery 12 is built in, which generates a signal sound corresponding to the meaning selected by the above-mentioned push button switch. for,
It has a recess 2 with an elastic surface so that it can be fitted with a transmitter, a speaker 3 in the center of which is supplied with the output signal of the signal generating circuit 11, and a push button on the side that functions as a power switch. A switch 4 is attached so that the transmitter and speaker 3 can be acoustically coupled in a cavity formed between the recess 2 and the front surface of the transmitter. Further, magnets 5 are embedded in the same plane at the four corners of the back surface 1' of the case. On the other hand, on the surface of the case of the sound receiver 6, there are lamps PL ₀₁ to PL ₀₅ , PL ₁₁ to PL ₁₅ , PL ₂₁ to
PL ₂₅ , PL ₃₁ - PL ₃₅ , PL ₄₁ - _{PL 45} are arranged, and above each one are push button switches S ₁₁ - S ₁₅ ... S ₄₁ at corresponding positions on the case surface of the sound transmitter 1.
- The same letters or symbols as those in S ₄₅ are attached. However, _lamps PL ₀₁ to PL ₀₅ do not have corresponding pushbutton switches;
PL ₀₃ indicates the status of the telephone circuit; PL ₀₁ displays a dial tone, PL ₀₂ displays a ring tone, and PL ₀₃ displays a busy tone. PL ₀₄ and PL ₀₅ are for displaying whether or not the transmitter/receiver according to the present invention has been set on the handset. PL ₀₄ is an optical display that indicates that only the "set" signal tone is being transmitted from the caller. However, the PL ₀₅ provides an optical display indicating that the "SET" signal tone is being emitted from both callers, that is, that the handsets 1 and 6 are ready for a call. Inside the case of the receiver 6, there is an amplifier 2 for the received signal.
1 and its output signal to the lamps PL ₀₁ to _{PL 05} ...
Signal sound discrimination circuit 2 that discriminates the signal sounds corresponding to each of PL ₄₁ to PL ₄₅ and drives the corresponding lamp.
5 (both of which will be described later) is built-in, and the case back 6' is provided with a recess 7 whose surface is elastic so that it can fit into a cavity for acoustic coupling with the receiver, and the center of the recess 7 has a receiver. A microphone 8 that detects the signal sound from the circuit as an electrical signal and supplies it to the amplifier 21.
It is equipped with Furthermore, iron pieces 9 are placed at the four corners of the case back 6' at positions corresponding to the magnets 4, respectively.
are embedded in the same plane. Reference numeral 10 denotes a lead wire that introduces power supply voltage from the battery 12 in the sound transmitter 1 through the recess 2 and supplies power to each circuit 21 to 24 of the sound receiver 6 through the recess 7. When not in use, when this lead wire 10 is stored in the recesses 2 and 7 and both back surfaces 1' and 6' face each other, the sound transmitter and receiver 1 and 6 are engaged by the attractive force between the magnet 4 and the iron piece 9. It can be easily carried in a pocket or the like. FIG. 6 shows the circuit configuration of the sound transmitter 1. When the sound transmitter 1 is fitted into the transmitter, the push button switch 4 is turned on and the signal tone generating circuit 11 is powered from the battery 12. The "set" signal sound generator 13 generates a "set" signal sound simultaneously with this power supply, and the signal sound selected by the push button switches _S11 to _S15 ... _S41 to _S45 . It is comprised of a "call" signal tone generator 14 that generates oscillations. The "Set" signal tone generator 13 performs intermittent oscillation of 2000Hz with a 10ms rest period after a sustained oscillation of 190ms, for example, while the "Call" signal tone generator 14 generates, for example, the dial tone of a 600P telephone, as shown in Table 1. As shown, two types of frequencies defined by the row and column of the operated pushbutton switch are oscillated.

[Table] While the sound transmitter 1 is operating, the oscillation signal of the "SET" signal tone is constantly supplied to the speaker 3, and when any of the pushbutton switches _S11 to _S15 ... _S41 to _S45 is operated. Then, the oscillation signal of the "call" signal sound, which is a mixture of two corresponding frequencies, is superimposed and radiated from the speaker 3 as a signal sound. FIG. 7 shows the circuit configuration of the receiver 6, and the microphone 8 is connected to the "telephone line state" supplied from the receiver.
The signal tones and the "talk" and "set" signals emitted by the caller or the other party are detected as electrical signals and supplied to the amplifier 21, whose amplified output is sent to the tone decoder 22 and the "telephone line status" signal tone discrimination circuit 23. and a "set" signal tone discrimination circuit 24. The tone decoder 22 includes a bandpass filter with bands corresponding to the nine types of oscillation frequencies shown in Table 1;
Ramp inputs two types of output signals from each of these nine types of bandpass filter output signals.
PL ₁₁ to PL ₁₅ . . . Consists of 20 NAND gates that discriminate signal tones corresponding to PL ₄₁ to PL ₄₅ . The “telephone line status” signal tone discrimination circuit 23 outputs 400
A bandpass filter that selects the Hz signal, a demodulation circuit that detects the 16Hz component within the bandpass filter, and, for example, the output signal of this bandpass filter is rectified and made into a constant level, and the integrator circuit outputs the signal that corresponds to input pulses at intervals of 1 second. It consists of a 1-second pulse detection circuit that passes the filter output by a gate circuit when the integral level is obtained, and a continuous tone of 400 Hz is transmitted, and an intermittent tone of 400 Hz modulated at 16 Hz is generated 20 times per minute. Distinguish between a certain ringtone and a busy tone that is a 400Hz intermittent tone 60 times per minute. In addition, when the output of the 16Hz demodulation circuit or 1 second pulse detection circuit is obtained,
The output signal of the bandpass filter is then cut off by an electronic switch. The "set" signal sound discrimination circuit 24 integrates the rest period pulse obtained by rectifying, constant leveling, and inverting the output signal of the 2000 Hz band pass filter, and when the level drops below the 10 ms level, It consists of an idle period detection circuit that opens a gate circuit, and the former distinguishes between a "set" signal tone and the latter a "ready to talk" signal tone, and when the latter output signal is obtained, it is activated by an electronic switch. The output signal of the former is then cut off. The operations and operations of the sound transmitters and receivers 1 and 6 having the configuration described above are as follows. When a user goes out, he/she carries the transmitter/receiver 1, 6 in the state shown in FIG. 5. For example, when a user wants to make a call to his or her home from a public telephone, the transmitter 1 and the receiver 6 are respectively fitted to the handset. At this time, by operating the push button switch, the sound transmitter 1 and the sound receiver 6 become operational, and the signal sound generation circuit 11 starts oscillating a "set" signal sound.
Therefore, the "SET" signal tone is supplied to the microphone 8 via the speaker 3, the transmitter, and the handset, and is further discriminated by the "SET" signal tone discrimination circuit 24 to light the "SET" lamp PL ₀₄ . This allows you to check the operation. When the coin is inserted and the microphone 8 receives a dial tone, the user confirms that the "dialable" lamp PL ₀₁ lights up and then dials. While calling the other party, the "calling" lamp PL ₀₂ lights up. When the recipient picks up the handset, a "set" signal is heard from the caller. As a result, the receiver determines that the caller is using the transmitter/receiver 1, 6, and sets the transmitter/receiver 1, 6 himself/herself. Then, since the "SET" signal sound is emitted from both the sender and the receiver, the "SET" signal sounds from both parties are superimposed, and the "SET" signal discriminator circuit 24 generates a "call ready" signal. The “Ready to talk” lamp PL ₀₅ lights up.
This allows you to make a call, e.g. "Destination"
If you would like to inform that you have arrived safely,
"Objective" pushbutton switch S ₂₃ , "Safe" pushbutton switch S ₃₁ and "Arrived" pushbutton switch S ₁₃
When pressed in sequence, the signal tone generating circuit 11 oscillates at the corresponding frequency, and both "destination" lamps are turned on.
PL ₂₃ , "Safe" lamp PL ₃₁ and "Arrived" lamp
PL ₁₃ lights up in sequence. If the other party can confirm the contents of the communication, press the "OK" button switch S ₁₅ , and if you wish to reconfirm, press the "again" button switch.
Press S ₂₅ to light the corresponding lamps PL ₁₅ and PL ₂₅ . Also, if there is an accident "x" and you want to inform the user that you will be late returning home or that you will be returning at 7 o'clock, press the corresponding pushbutton switches in the same way. In this case, ``7 o'clock'' means press the ``5'' pushbutton switch S ₄₁ once, then press the ``1'' pushbutton switch once.
Communication is made by pressing S ₄₂ twice and the "hour" pushbutton switch S ₄₃ . If a complex conversation is desired, the caller uses pushbutton switch S ₃₅ and the other party uses pushbutton switch S ₄₅ to communicate in Morse code. In addition, the sound transmitter and receiver prepared at home or indoors,
It is also possible to use a permanently installed type in which the front and back surfaces of the sound transmitter 1 and the sound receiver 6 are all arranged on a single surface, and in this case, the oscillation stop of the "set" signal sound can be manually switched. Also, the number of pushbutton switches may be reduced or separate for response only.
Furthermore, if a so-called flash bell is provided that announces the ringing tone by blinking a lamp, even deaf and dumb people can easily communicate with each other. As is clear from the above explanation, the present invention provides a handset adapter that sends a signal sound from the handset by pressing a button, and lights up a lamp at a predetermined position in response to the sound on the handset. Even deaf and dumb people can easily make calls, and since it can be made portable, it can be used from anywhere, and it can greatly contribute to the more active activities and welfare of deaf and dumb people. Furthermore, the sound transmitter and sound receiver are formed into separate flat case shapes,
The structure that allows them to engage with each other in a flat direction provides a very advantageous structure for portable use.

[Brief explanation of the drawing]

Figures 1 to 7 relate to the first embodiment of the present invention; Figure 1 is the front side of the sound transmitter, Figure 2 is the back side thereof, Figure 3 is the front side of the sound receiver, and Figure 4 is the front side of the sound transmitter. The back side,
FIG. 5 shows the engaged state of the sound transmitter and the sound receiver, FIG. 6 shows the circuit configuration of the sound transmitter, and FIG. 7 shows the circuit configuration of the sound receiver. 1, 31: Sound transmitter, 3: Speaker, 6, 36:
Sound receiver, 8: Microphone, 11: Signal sound generation circuit, 2
5: Signal sound discrimination circuit.

Claims (1)

[Scope of Claim for Utility Model Registration] A sound transmitter that is equipped with a plurality of switches that are operated for making calls and that supplies different signal tones to the transmitter of a telephone according to the operation of each switch; A telephone auxiliary device for the deaf and dumb, comprising a plurality of corresponding lamps and a lamp for displaying telephone line status, and a receiver for detecting and discriminating a signal tone from a telephone receiver to light a corresponding lamp, The sound transmitter and the sound receiver are each formed into a portable type that can be engaged with each other as separate flat cases, and the plurality of switches are provided on the surface of the case of the sound transmitter. They are arranged with meanings written on them for making calls, and the back side can be set into a transmitter.
and a speaker for supplying a signal sound, and the lamps are arranged on the front surface of the case of the receiver with their meanings marked corresponding to the plurality of switches, and the back surface is arranged with a speaker that is set on the receiver. 1. A telephone auxiliary device for the deaf and dumb, characterized in that the telephone auxiliary device is equipped with a microphone capable of detecting the signal sound.