JP2005252960A - Intercom apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intercom apparatus with which a conversation can be smoothly made among a number of users without radio interference within a limited space. <P>SOLUTION: In an intercom apparatus comprised of a handset side unit 4 and a main body side unit 5 for supporting a conversation between persons each having a difficulty in hearing or a conversation between a person having a difficulty in hearing and a non-handicapped person, infrared rays R are used for transmission/reception between the handset side unit 4 and the main body side unit 5. The handset side unit 4 is comprised of a microphone 40, a light receiving sensor 41, an infrared demodulation section 42, an amplification section 43, an earphone 44, an infrared modulation section 45 and an infrared transmission section 46, and the main body side unit 5 is comprised of a light receiving sensor 50, a plurality of infrared demodulation sections 51, an infrared modulation section 52, and an infrared transmission section 53. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an intercommunication device used to support conversation between hearing-impaired persons or conversation between a hearing-impaired person and a normal hearing person, particularly at a school for the deaf.

  2. Description of the Related Art Conventionally, devices that use a plurality of FM wireless microphones and hearing aids are known as intercommunication devices that are used in schools. In this device, teachers and students each have FM wireless microphones of different channels, audio signals from receivers of channels corresponding to these channels are passed through a magnetic loop through a loop amplifier, and magnetic waves are received by the induction coil of the hearing aid Each person listens to each other. Such a device allows teachers and students, and students and students to freely communicate with each other even if they are hearing impaired.

  However, the conventional apparatus has a problem that it is difficult to secure the necessary number of channels. The school is often composed of multiple classes, and classrooms are assigned to these classes. For example, if one teacher and six students try to talk to each other in one classroom, 7 channel frequencies are required, but radio waves leak, so the same channel frequency cannot be used in the surrounding classrooms. .

  Therefore, frequencies other than 7 channels must be used, and it is difficult to secure the number of channels. In order to solve this problem, it is conceivable to provide a sufficient radio wave shield for each classroom, but this requires renovation of the classroom, and the classroom has large windows, which is not realistic.

  The present invention has been made in view of the above-described problems of the prior art, and the object of the present invention is to allow many users to talk smoothly without interference in a limited space. It is an object of the present invention to provide an intercommunication device that can be used.

  In order to solve the above-mentioned problem, the invention according to claim 1 is directed to an intercommunication device comprising a child unit side device and a main unit side device for supporting conversation between hearing impaired persons or a conversation between a hearing impaired person and a normal hearing person. To the main body side device using infrared rays.

  The invention according to claim 2 is the mutual communication device according to claim 1, wherein the slave unit side device includes a microphone, an induction coil, an amplification unit, an earphone, an infrared modulation unit, and an infrared transmission unit. The main body side device includes a light receiving sensor, a plurality of infrared demodulation units, a loop amplifier, and a magnetic loop.

  According to a third aspect of the present invention, in the intercommunication apparatus according to the second aspect, the slave unit side device includes a reception unit for joint listening including a microphone, an induction coil, an amplification unit, and an earphone, a microphone, an amplification unit, and infrared modulation. And an individual transmission unit comprising an infrared transmission unit.

  According to a fourth aspect of the present invention, there is provided an intercommunication device including a child device side device and a main body side device for supporting conversation between hearing impaired persons or a hearing person and a hearing person, and the child device side device and the main body side device; Infrared transmission / reception is performed.

  According to a fifth aspect of the present invention, in the mutual communication device according to the fourth aspect, the slave unit side device includes a microphone, a light receiving sensor, an infrared demodulation unit, an amplification unit, an earphone, an infrared modulation unit, and an infrared ray. The main body side device includes a light receiving sensor, a plurality of infrared demodulation units, an infrared modulation unit, and an infrared transmission unit.

  According to a sixth aspect of the present invention, in the intercommunication apparatus according to the fifth aspect, the slave unit side device includes a microphone, a light receiving sensor, an infrared demodulating unit, an amplifying unit, and an earphone. And an individual transmission unit including an infrared modulation unit and an infrared transmission unit.

  As described above, according to the first or second aspect of the invention, the infrared rays that can be shielded by a wall or a simple partition are used for transmission from the slave unit side device to the main unit side device. Even if the same channel frequency is used in the next room, there is no interference.

  According to the third aspect of the present invention, a normal hearing person can carry out a conversation with a hearing-impaired person simply by carrying an individual transmission unit excluding the function of a hearing aid.

  According to the invention which concerns on Claim 4 or 5, since the infrared rays which can be shielded with walls, such as a room, or a simple partition are used for transmission / reception between the child side device and the main body side device, Even if the frequency of the same channel is used, there is no interference.

  According to the sixth aspect of the present invention, the normal hearing person can smoothly carry out a conversation with the hearing-impaired person only by carrying the individual transmission unit excluding the function of the hearing aid.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a block diagram of the first embodiment of the mutual communication apparatus according to the present invention, FIG. 2 is a block diagram of the second embodiment, and FIG. 3 is a block diagram of the third embodiment. 4 is a block diagram of the fourth embodiment.

  As shown in FIG. 1, the first embodiment of the intercommunication apparatus according to the present invention includes a child device 1 that is carried by each student in the classroom and a main device 2 that is installed in each classroom. Transmission from the slave unit side device 1 to the main unit side device 2 is performed using the infrared rays R, and transmission from the main unit side device 2 to the slave unit side device 1 is performed using the magnetic wave M.

  The subunit | mobile_unit side apparatus 1 consists of the microphone 10, the induction coil 11, the amplification part 12, the earphone 13, the infrared modulation part 14, and the infrared transmission part 15. FIG. Here, the microphone 10, the amplifier 12, the infrared modulator 14, and the infrared transmitter 15 serve as a transmitter, and the induction coil 11, amplifier 12, and earphone 13 serve as a receiver.

  The main body side device 2 includes a light receiving sensor (infrared antenna) 20, an infrared demodulating unit 21 equal to or more than the number of the slave side device 1, a loop amplifier 22, and a magnetic loop 23. Send.

  The operation of the first embodiment configured as described above will be described. The voice of each individual collected by the microphone 10 of the child device 1 carried by each student is amplified by the amplifier 12 and further modulated by the infrared modulator 14, and the modulated signal is transmitted from the infrared transmitter 15. Transmitted as infrared R.

  Then, each infrared ray R transmitted from the slave side device 1 is received by the light receiving sensor 20 of the main body side device 2 and detected by the infrared demodulation unit 21 of each channel. The detected audio signal is mixed, amplified by the loop amplifier 22 and transmitted as a magnetic wave M from the magnetic loop 23.

  The magnetic wave M transmitted from the magnetic loop 23 is received by the induction coil 11 of the child device 1 carried by each student, the signal received by the induction coil 11 is amplified by the amplifying unit 12, and then the earphone. Listen at 13.

  Since the infrared ray R can be shielded by the wall of the room or a simple partition, the frequency of the same channel can be used in the adjacent classroom. Therefore, the intercommunication device in each classroom is configured with a few channel frequencies. It becomes possible.

Next, as shown in FIG. 2, the second embodiment of the intercommunication apparatus according to the present invention includes a slave unit 3 carried by each student in the classroom and a main unit 2 installed in each classroom. Become.

The handset side apparatus 3 includes a receiving device 34 for joint listening corresponding to a hearing aid including a microphone 30, an induction coil 31, an amplifier 32, and an earphone 33, a microphone 35, an amplifier 36, an infrared modulator 37, and an infrared transmitter 38. 1 is different from the first embodiment shown in FIG. Other configurations are the same as those of the first embodiment.

  In such a second embodiment, the teacher who is a normal hearing person carries the personal listening unit 39 excluding the function of the hearing aid and carries the joint listening receiving unit 34 and the personal transmitting unit 39 corresponding to the hearing aid. Conversation with students who are hard of hearing. In addition, only the teacher who is a normal hearing person carries the individual transmission part 39, and the student who is a hearing-impaired person can also carry the subunit | mobile_unit side apparatus 1 shown in FIG. Other operations and effects are the same as those of the first embodiment.

  Next, as shown in FIG. 3, the third embodiment of the intercommunication apparatus according to the present invention includes a slave unit 4 carried by each student in the classroom and a main unit 5 installed in each classroom. Become. Transmission from the slave side device 4 to the main body side device 5 is performed using the infrared ray R, and transmission from the main body side device 5 to the slave unit side device 4 is also performed using the infrared ray R.

  The subunit | mobile_unit side apparatus 4 consists of the microphone 40, the light reception sensor 41, the infrared demodulation part 42, the amplification part 43, the earphone 44, the infrared modulation part 45, and the infrared transmission part 46. Here, the configuration of the microphone 40, the amplification unit 43, the infrared modulation unit 45, and the infrared transmission unit 46 functions as a transmitter, and the configuration of the light receiving sensor 41, the infrared demodulation unit 42, the amplification unit 43, and the earphone 44 functions as a receiver.

  The main body side device 5 includes a light receiving sensor (infrared antenna) 50, an infrared demodulation unit 51 equal to or more than the number of the slave unit side devices 4, an infrared modulation unit 52, and an infrared transmission unit 53. Send with R.

  The operation of the third embodiment configured as described above will be described. Each student's voice collected by the microphone 40 of the child device 4 carried by each student is amplified by the amplifying unit 43, and the signal modulated by the infrared modulating unit 45 is transmitted as infrared R from the infrared transmitting unit 46. To do.

  Then, each infrared ray R transmitted from the slave unit side device 4 is received by the light receiving sensor 50 of the main unit side device 5 and detected by the infrared demodulation unit 51 of each channel. The detected audio signals are mixed, further modulated by the infrared modulation unit 52, and transmitted from the infrared transmission unit 53 as infrared R.

  Infrared R transmitted from the infrared transmitter 53 is received by the light receiving sensor 41 of the child device 4 carried by each student, and detected by each infrared demodulator 42. After being detected by the infrared demodulator 42 and amplified by the amplifier 43, the signal is listened to by the earphone 44.

  Next, as shown in FIG. 4, the fourth embodiment of the intercommunication apparatus according to the present invention includes a slave unit 6 carried by each student in the classroom and a main unit 5 installed in each classroom. Become.

  The handset side device 6 includes a microphone 60, a light receiving sensor 61, an infrared demodulating unit 62, an amplifying unit 63, and a joint listening receiving unit 65 including an earphone 64, a microphone 35, an amplifying unit 36, an infrared modulating unit 37, and an infrared transmitting unit. The third embodiment is different from the third embodiment shown in FIG. Other configurations are the same as those of the third embodiment.

  In such a fourth embodiment, a teacher who is a normal hearing person simply carries the individual transmission unit 39, and the student who is a hearing impaired person carrying the joint listening reception unit 65 and the individual transmission unit 39. Conversation can be conducted smoothly. In addition, only the teacher who is a normal hearing person carries the individual transmission part 39, and the student who is a hearing-impaired person can also carry the subunit | mobile_unit side apparatus 4 shown in FIG. Other operations and effects are the same as those of the third embodiment.

  According to the present invention, since infrared rays that can be shielded by a wall of a room or a simple partition are used, the frequency of the same channel can be used in an adjacent room or the like. It is possible to configure a mutual communication device in a room.

The block block diagram of 1st Example of the mutual communication apparatus which concerns on this invention The block block diagram of 2nd Example of the mutual communication apparatus which concerns on this invention. The block block diagram of 3rd Example of the mutual communication apparatus which concerns on this invention. The block block diagram of 4th Example of the mutual communication apparatus which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1, 3, 4, 6 ... Slave side device, 2, 5 ... Main body side device 10, 30, 35, 40, 60 ... Microphone, 11, 31 ... Induction coil, 12, 32, 36, 43, 63 ... Amplifying unit, 13, 33, 44, 64 ... earphone, 14, 37, 45, 52 ... infrared modulation unit, 15, 38, 46, 53 ... infrared transmission unit, 20, 41, 50, 61 ... light receiving sensor, 21, 42, 51, 62 ... Infrared demodulator, 22 ... Loop amplifier, 23 ... Magnetic loop, M ... Magnetic wave, R ... Infrared.

Claims (6)

In an intercommunication device consisting of a handset device and a main body side device that supports conversation between hearing impaired people or a hearing person and a hearing person, infrared light is used for transmission from the handset side device to the main body side device. An intercommunication device characterized by performing. The slave unit side device includes a microphone, an induction coil, an amplification unit, an earphone, an infrared modulation unit, and an infrared transmission unit. The main unit side device includes a light receiving sensor, a plurality of infrared demodulation units, and a loop. The mutual communication device according to claim 1, comprising an amplifier and a magnetic loop. The slave unit side device is configured by a reception unit for joint listening including a microphone, an induction coil, an amplification unit, and an earphone, and an individual transmission unit including a microphone, an amplification unit, an infrared modulation unit, and an infrared transmission unit. 2. The mutual communication device according to 2. In an intercommunication device comprising a handset side device and a main body side device that supports conversation between hearing impaired persons or a hearing person and a hearing person, infrared light is used for transmission and reception between the handset side device and the main body side device. An intercommunication device characterized by performing. The slave unit side device includes a microphone, a light receiving sensor, an infrared demodulation unit, an amplification unit, an earphone, an infrared modulation unit, and an infrared transmission unit, and the main unit side device includes a light reception sensor and a plurality of infrared rays. 5. The intercom apparatus according to claim 4, comprising a demodulator, an infrared modulator, and an infrared transmitter. The slave unit side device comprises a microphone, a light receiving sensor, an infrared demodulator, an amplifier and an earphone for joint listening, and a personal transmitter comprising a microphone, an amplifier, an infrared modulator and an infrared transmitter The intercommunication apparatus according to claim 5.