| 摘要 |
PURPOSE:To listen to a telephone call with high intelligibility, through the use of a hearing aid for a person who has difficulty in hearing, with increased leakage magnetic flux of a receiving signal, by providing a coil for reception signal magnetic field generation for a receiver of a telephone set. CONSTITUTION:A receiver 3 and a transmitter 4 incorporated in a hand set 2 are respectively connected to receiver terminals R1, R2 and transmitter terminals T1, T2 of a telephone set main body 1, and a coil 5 for reception signal magnetic field generation connected in parallel with the input of the receiver 3 is wound on the external circumference of the main body of the receiver 3. A normal received sound is generated from the receiver 3, a magnetic field corresponding to the received sound is generated from the coil 5 and the listening of telephone call can be made easy for the induction coil 5 of a hearing aid in addition to the conventional telephone function. An amplifier driving the coil 5 can be contained in the hand set 2. |
