Title:
FREQUENCY SWITCHING CIRCUIT, DATA COMMUNICATION SYSTEM, AND FREQUENCY SWITCHING METHOD
Document Type and Number:
WIPO Patent Application WO/2013/076796
Kind Code:
A1
Abstract:
This frequency switching circuit includes: a first counting circuit which counts the number of pulses of a first clock signal in a predetermined period in order to generate a first count value; a second counting circuit which counts the number of pulses of a second clock signal in a predetermined period in order to generate a second count value; a buffer into which data is written in synchronization with the pulses of the first clock signal and out of which data is read in synchronization with the pulses of the second clock signal; and a control circuit which, with respect to a number of pulses equal to the second count value among consecutive pulses of the first clock signal which are of an equal number to the first count value, sets the buffer to a write-enabled state, and with respect to the remaining pulses, sets the buffer to a write-disabled state.
Inventors:
OSONOI TAKESHI (JP)
Application Number:
PCT/JP2011/076832
Publication Date:
May 30, 2013
Filing Date:
November 21, 2011
Export Citation:
Assignee:
FUJITSU LTD (JP)
OSONOI TAKESHI (JP)
OSONOI TAKESHI (JP)
International Classes:
H04L7/00
Foreign References:
| JPH08274585A | 1996-10-18 | |||
| JP2008294708A | 2008-12-04 |
Attorney, Agent or Firm:
ITOH, TADAHIKO (JP)
Tadahiko Ito (JP)
Tadahiko Ito (JP)
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Claims: