Patent ID: 6678536
Filing Date: 2004-01-13
Classification: H04M

Abstract:
A wireless microphone, comprising a base unit connectable to a transmitting/receiving unit adapted to at least transmit signals to another party; a head unit receiving signals from a user; and means for transmitting signals from said head unit to base unit with infrared radiation, said transmitting means include an infrared transmitter provided in said head unit and transmitting signals received from the user, and an infrared receiver provided in said base unit and receiving the signals transmitted from said head unit, said base unit has an input microphone member through which signals from the user are introduced into said base unit, each of said units including a signal amplification block, a codec and filtering block connected with said signal amplification block, and a microcontroller block connected with said codec and filtering block, each of said blocks includes an infrared element selected from the group consisting of an infrared transmitter and an infrared receiver, said infrared element being connected with said microcontroller.