Patent ID: 6483917
Filing Date: 2002-11-19
Classification: H04M,H04R

Abstract:
A telephone with a receiver arousing bone-conduction and air-conduction hearing, comprising:an overvoltage protector which protects the telephone from an overvoltage via a subscriber's line; a ring signal controller connected to said overvoltage protector, which controls a volume of a ring signal and outputs said ring signal to a loudspeaker; a voice signal/subscriber's line controller connected to said overvoltage protector, which controls said subscriber's line and controls transmission/reception of both an electric voice signal and a dial signal; a two-wire/four-wire converter connected to said voice signal/subscriber's line controller, which performs two-wire/four-wire conversion to separate the transmission/reception of the electric voice signal; an amplifier circuit connected to said two-wire/four-wire converter, which amplifies said electric voice signal from said two-wire/four-wire converter; and a hand-set including a receiver which receives and converts said electric voice signal into a vibration signal and an acoustic signal to be heard via bone-conduction and air-conduction hearing, respectively, and a transmitter which converts an input voice signal into an electric signal and transmits said electric signal to said two-wire/four-wire converter; wherein said receiver includes: a main vibration source which vibrates by converting a voice signal applied from an external voice signal source into a variation of a magnetic field; a vibration generator which generates a secondary magnetic field, creates attraction and repulsion operations between said secondary magnetic field and said magnetic field of said main vibration source, and makes said main vibration source vibrate in a vertical direction; an auxiliary vibrator which reinforces a vibration of said main vibration source, includes an air-conduction vibrator arousing air-conduction hearing, and a bone-conduction vibrator arousing a bone-conduction hearing; a vibration transmitter which directly transmits an entire vibration by both a vibration of said main vibration source and a vibration of said bone-conduction vibrator of said auxiliary vibrator to a transmission portion where a bone-conduction hearing transmission is good for bone-conduction hearing; and a vibration stabilizer which stabilizes vibrations of said main vibration source and said auxiliary vibrator.