Radio apparatus

Details Radio apparatus Radio apparatus

1996-03-18

1997-11-11

Chin, Wellington

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359158, 370503, 375365, 327292, H04B 1000

Patent

active

056870159

ABSTRACT:
Disclosed is a radio apparatus in a synchronous digital hierarchy (SDH) network in which a radio transmission line having a plurality of radio lines is installed between optical transmission lines each having a plurality of optical lines. The radio apparatus includes a plurality of channel boards, each of which is provided between an optical line and a radio line, for transmitting an optical signal received from the optical line to the radio line and transmitting a signal received from the radio line to the optical line, a setting unit, which is provided to be shared by each channel board, for attaching, per channel board, priority value to clock contained in each signal sent in via an optical line and a radio line, and for setting, per channel board, whether the clock of each priority value is to be outputted or not, and an equipment-clock decision unit for deciding a clock shared by the entire apparatus. Each channel board enters a clock, whose output has been designated by the setting unit, as well as the priority value and quality value of the clock, into the equipment-clock decision unit. On the basis of the quality value and priority value of each clock entered from each channel board, the equipment-clock decision unit decides the equipment clock and enters the equipment clock into each channel board.

REFERENCES:
patent: 5007070 (1991-04-01), Choa et al.
patent: 5390185 (1995-02-01), Hooijmans et al.
patent: 5543951 (1996-08-01), Moehmann
patent: 5587996 (1996-12-01), Mizuno

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