Clock supply apparatus

Details Clock supply apparatus Clock supply apparatus

1993-04-30

1994-07-05

Miska, Vit W.

Horology: time measuring systems or devices

Plural timepiece system or system device

3701001, 375106, G04C 1100, G04C 1300, H04J 306

Patent

active

053274024

ABSTRACT:
A clock supply apparatus provided in each slave office, wherein a single master clock is received at a clock receiver unit; 0-system and 1-system system clocks are paired and are distributed to the transmission units at terminal ends via a plurality of duplexed clock supply routes; and multistage clock selection units are hierarchically inserted into the duplexed clock supply routes. The system-selection unit for controlling the selection of the 0-system or 1-system at each clock selection unit is given a 0-system and 1-system duplexed structure and is constituted by a system switching command unit for instructing this system-selection.

REFERENCES:
patent: 4866606 (1989-09-01), Kopetz
patent: 4886981 (1989-12-01), Lentini et al.
patent: 4890222 (1989-12-01), Kirk
patent: 5040158 (1991-08-01), Lee et al.

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