| 摘要 |
<P>PROBLEM TO BE SOLVED: To unconditionally transmit notification broadcast to all the users without an instruction whether this is a notification broadcast and without preparation procedures prior to broadcasting. <P>SOLUTION: This optical communications equipment is provided with a conversion part 12 which receives an optical signal for transmitting a broadcasting signal to convert it into an electrical signal; an output terminal 14 which outputs the electronic signal to the user side; an output stop control part 16 which accepts a user stop instruction of the broadcasting signal; a switch 20 which changes the state from an ON-mode to an OFF-mode, when the output stop control part 16 accepts the user stop instruction and when the state is restored from the OFF-mode to the ON-mode, when the user stop instruction is released; and a filter 22 which selects the signal frequency of the notification broadcast uncoditionally broadcast to the user and makes it transmit, and the switch 20 transmits the electrical signal output by the conversion part 12 in the ON-mode and transmits the electrical signal output by the conversion part 12, to an output terminal 14 via the filter 22 in the OFF-mode. <P>COPYRIGHT: (C)2009,JPO&INPIT |
