Patent ID: 6954536
Filing Date: 2005-10-11
Classification: H04B

Abstract:
1. An RF transmitter capable of being attached to a first microphone, the first microphone having a first jack capable of supplying an electric power and a second jack for outputting an audio signal, the transmitter comprising: a first connecting plug which is inserted into said first jack to receive said electric power; a second connecting plug which is inserted into said second jack to receive said audio signal; modulation means which receives said electric power and modulates said audio signal inputted from said second connecting plug; and transmitting means which receives said electric power and transmits said audio signal modulated by said modulation means to an RF receiver wherein said first jack includes a first jack terminal connected to said electric power and a second jack terminal connected to a first terminating resistor, and said first connecting plug includes a first plug terminal connected to said first jack terminal and a second plug terminal connected to said second jack terminal to open said first terminating resistor, further comprising a power supply line which receives said electric power from said first plug terminal.