JP4402251B2 - 光空間伝送装置 - Google Patents

光空間伝送装置 Download PDF

Info

Publication number
JP4402251B2
JP4402251B2 JP2000114901A JP2000114901A JP4402251B2 JP 4402251 B2 JP4402251 B2 JP 4402251B2 JP 2000114901 A JP2000114901 A JP 2000114901A JP 2000114901 A JP2000114901 A JP 2000114901A JP 4402251 B2 JP4402251 B2 JP 4402251B2
Authority
JP
Japan
Prior art keywords
component
signal
component level
optical
clock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2000114901A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001298419A (ja
JP2001298419A5 (enExample
Inventor
潤二 重田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2000114901A priority Critical patent/JP4402251B2/ja
Publication of JP2001298419A publication Critical patent/JP2001298419A/ja
Publication of JP2001298419A5 publication Critical patent/JP2001298419A5/ja
Application granted granted Critical
Publication of JP4402251B2 publication Critical patent/JP4402251B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Monitoring And Testing Of Transmission In General (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Optical Communication System (AREA)
JP2000114901A 2000-04-17 2000-04-17 光空間伝送装置 Expired - Fee Related JP4402251B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000114901A JP4402251B2 (ja) 2000-04-17 2000-04-17 光空間伝送装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000114901A JP4402251B2 (ja) 2000-04-17 2000-04-17 光空間伝送装置

Publications (3)

Publication Number Publication Date
JP2001298419A JP2001298419A (ja) 2001-10-26
JP2001298419A5 JP2001298419A5 (enExample) 2007-06-14
JP4402251B2 true JP4402251B2 (ja) 2010-01-20

Family

ID=18626631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000114901A Expired - Fee Related JP4402251B2 (ja) 2000-04-17 2000-04-17 光空間伝送装置

Country Status (1)

Country Link
JP (1) JP4402251B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009071368A (ja) * 2007-09-10 2009-04-02 Toyo Electric Corp 空間光伝送装置
JP2010079450A (ja) * 2008-09-24 2010-04-08 Toyo Electric Corp 空間光伝送装置
JP4983870B2 (ja) * 2009-07-24 2012-07-25 Ｋｄｄｉ株式会社 光送受信装置
JP7175931B2 (ja) * 2020-02-25 2022-11-21 アンリツ株式会社 測定装置、及び測定方法

Also Published As

Publication number Publication date
JP2001298419A (ja) 2001-10-26

Similar Documents

Publication Publication Date Title
CA2334132C (en) Method and apparatus for automatically identifying system faults in an optical communications system from repeater loop gain signatures
US7684700B2 (en) Loss-of-signal detecting device
JP3446211B2 (ja) 光伝送システムにおける自己刺激信号の検出
JP3851610B2 (ja) 伝送路損失試験方法、並びに、該方法を用いる従局、主局及び通信システム
EP2456127A1 (en) Method, system and apparatus for diagnosing physical downlink failure
KR20120112836A (ko) 지연 검파 회로 및 수신 장치
JP4402251B2 (ja) 光空間伝送装置
US5657154A (en) Monitoring system for all optical regenerators
JPH04235425A (ja) 遠隔測定の方法およびシステム
JP2005033401A (ja) 光送受信装置
JP2009159293A (ja) 光伝送装置および光伝送方法
CN212623123U (zh) 一种动态滤除环境干扰的线缆探测仪装置
US11316592B2 (en) Optical module and optical communication system
JP2580738B2 (ja) 故障点標定装置
JPH09219720A (ja) 通信ネットワークにおける障害検出方法及び装置
JPH114193A (ja) 光異常出力防止回路
US6501573B1 (en) Apparatus and method for monitoring the qualities of optical signal using clock amplitude
JP4266491B2 (ja) 光空間伝送装置
JP2001298418A (ja) 光空間伝送装置
JP2508986B2 (ja) 光増幅中継システム
JPH04301934A (ja) 光送信器並びに光送信器を用いた光通信装置
KR100321003B1 (ko) 디지털 트렁크를 이용한 시각 동기 신호 분배장치
KR200309696Y1 (ko) 광파워미터를 구비하는 광신호 송신장치
JPH10209971A (ja) データ中継装置
JPH05284120A (ja) 光伝送路監視方法

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070417

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070417

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080624

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080701

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080901

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090217

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090416

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091027

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091029

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121106

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131106

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees