JPH01149146U - - Google Patents
Info
- Publication number
- JPH01149146U JPH01149146U JP4417888U JP4417888U JPH01149146U JP H01149146 U JPH01149146 U JP H01149146U JP 4417888 U JP4417888 U JP 4417888U JP 4417888 U JP4417888 U JP 4417888U JP H01149146 U JPH01149146 U JP H01149146U
- Authority
- JP
- Japan
- Prior art keywords
- synchronous clock
- transmitting
- clock
- frequency
- divided
- 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.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
- Optical Communication System (AREA)
Description
第１図はこの考案に係る同期クロツク送受信装
置の実施例を示すブロツク図である。第２図及び
第３図は従来の実施例を示し、第２図は同軸ケー
ブルによる従来の実施例を示すブロツク図、第３
図は光ケーブルによる従来の実施例を示すブロツ
ク図である。
主な図番の説明、１：同期クロツク送信装置、
２：同期クロツク発振器、３：１／Ｎ分周器、４
：光送信器、６：同期クロツク受信装置、７：光
受信器、８：フエーズロツクループ回路（ＰＬＬ
）、９：光ケーブル。
FIG. 1 is a block diagram showing an embodiment of a synchronous clock transmitting/receiving device according to this invention. 2 and 3 show a conventional embodiment, FIG. 2 is a block diagram showing a conventional embodiment using a coaxial cable, and FIG. 3 shows a conventional embodiment using a coaxial cable.
The figure is a block diagram showing a conventional embodiment using an optical cable. Explanation of main figure numbers, 1: Synchronous clock transmitter,
2: Synchronous clock oscillator, 3: 1/N frequency divider, 4
: Optical transmitter, 6: Synchronous clock receiver, 7: Optical receiver, 8: Phase lock loop circuit (PLL)
), 9: Optical cable.
Claims (1)
受信を行うようにした光信号伝送装置において、 送信側では上記同期クロツクを１／Ｎに分周し
、この分周した同期クロツクを送信すると共に、
受信側では送信側が送信した同期クロツクに基づ
きＮ逓倍した同期クロツクを再生するように構成
したことを特徴とする同期クロツク送受信装置。[Claims for Utility Model Registration] In an optical signal transmission device that transmits and receives signals between different devices using a synchronous clock, the frequency of the synchronous clock is divided by 1/N on the transmitting side, and the frequency of this divided clock is In addition to transmitting a synchronous clock,
A synchronous clock transmitting/receiving device characterized in that the receiving side is configured to reproduce a synchronous clock multiplied by N based on the synchronous clock transmitted by the transmitting side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4417888U JPH01149146U (en) | 1988-04-02 | 1988-04-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4417888U JPH01149146U (en) | 1988-04-02 | 1988-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149146U true JPH01149146U (en) | 1989-10-16 |
Family
ID=31270548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4417888U Pending JPH01149146U (en) | 1988-04-02 | 1988-04-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012023571A (en) * | 2010-07-14 | 2012-02-02 | Ricoh Co Ltd | Communication unit, communication system, and control method of communication unit |
-
1988
- 1988-04-02 JP JP4417888U patent/JPH01149146U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012023571A (en) * | 2010-07-14 | 2012-02-02 | Ricoh Co Ltd | Communication unit, communication system, and control method of communication unit |
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