Title:
PHASE SYNCHRONIZATION CIRCUIT AND IN-PHASE DISTRIBUTION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2021/090466
Kind Code:
A1
Abstract:
On the occasion of branching one reference signal from one reference signal source and transmitting the branched signals via a plurality of cables, it is conceivable to use phase synchronization circuits in order to stabilize the phases of the signals output from the respective cables. However, with regard to the signals output from the different cables, there have been cases where synchronization signals output from multiple transmission paths have different phases depending on the combination of cable length and the amount of delay as a result of the feedback control. In the present invention, a phase synchronization circuit is provided with a frequency multiplier which multiplies the frequency of the signal output from the transmission path by an even number, and thus, even if one reference signal is distributed into a plurality of signals, the phases of the synchronization signals output from the plurality of transmission paths align with each other.
Inventors:
MIZUTANI HIROYUKI (JP)
IKEDA SHO (JP)
MORITA KAE (JP)
IKEDA SHO (JP)
MORITA KAE (JP)
Application Number:
PCT/JP2019/043791
Publication Date:
May 14, 2021
Filing Date:
November 08, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B3/04
Foreign References:
| JPH03123115A | 1991-05-24 | |||
| JP2005018321A | 2005-01-20 | |||
| JPH08251149A | 1996-09-27 | |||
| JP2013042478A | 2013-02-28 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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