JPH0448767U - - Google Patents
Info
- Publication number
- JPH0448767U JPH0448767U JP9049290U JP9049290U JPH0448767U JP H0448767 U JPH0448767 U JP H0448767U JP 9049290 U JP9049290 U JP 9049290U JP 9049290 U JP9049290 U JP 9049290U JP H0448767 U JPH0448767 U JP H0448767U
- Authority
- JP
- Japan
- Prior art keywords
- cable
- equalizer
- called side
- facsimile
- equalizers
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Facsimiles In General (AREA)
- Facsimile Transmission Control (AREA)
Description
第１図は本考案の第一実施例によるフアクシミ
リのケーブルイコライザ自動切換装置のブロツク
回路構成図、第２図は本実施例におる伝送制御手
順を示す図、第３図は同手順におけるトレーニン
グチエツク（ＴＣＦ）信号のタイムチヤートであ
る。
１……電話回線、３（Ａ，Ｂ，Ｃ）……等化器
、４……モデム、５……スイツチ手段（切換手段
、選択手段）。
Fig. 1 is a block circuit configuration diagram of a facsimile cable equalizer automatic switching device according to the first embodiment of the present invention, Fig. 2 is a diagram showing the transmission control procedure in this embodiment, and Fig. 3 is a training check in the same procedure. (TCF) signal time chart. 1... Telephone line, 3 (A, B, C)... Equalizer, 4... Modem, 5... Switch means (switching means, selection means).
Claims (1)
を介して回線に接続され、発呼側と被呼側の間で
所定の伝送制御手順を経て通信を確立するフアク
シミリのケーブルイコライザ自動切換装置におい
て、 被呼側手順内において発呼側からの最初のトレ
ーニングチエツク信号伝送中に複数個のケーブル
イコライザを切換える切換手段と、 上記により切換えた中でエラーの最つとも少な
いケーブルイコライザを選択し、通信を確立させ
る選択手段とを備えたことを特徴とするフアクシ
ミリのケーブルイコライザ自動切換装置。[Claim for Utility Model Registration] A facsimile cable in which a terminal device on the called side is connected to a line via a cable equalizer of a modem, and communication is established between the calling side and the called side through a predetermined transmission control procedure. In the equalizer automatic switching device, a switching means for switching a plurality of cable equalizers during the first training check signal transmission from the calling side in the called side procedure, and a cable equalizer with the least error among the cable equalizers switched by the above. A facsimile cable equalizer automatic switching device characterized by comprising: selection means for selecting and establishing communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990090492U JP2557552Y2 (en) | 1990-08-28 | 1990-08-28 | Facsimile cable equalizer automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990090492U JP2557552Y2 (en) | 1990-08-28 | 1990-08-28 | Facsimile cable equalizer automatic switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0448767U true JPH0448767U (en) | 1992-04-24 |
| JP2557552Y2 JP2557552Y2 (en) | 1997-12-10 |
Family
ID=31825302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990090492U Expired - Lifetime JP2557552Y2 (en) | 1990-08-28 | 1990-08-28 | Facsimile cable equalizer automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2557552Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115015A (en) * | 1978-02-28 | 1979-09-07 | Ricoh Co Ltd | Correction system of line distortion in facsimile communication |
-
1990
- 1990-08-28 JP JP1990090492U patent/JP2557552Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115015A (en) * | 1978-02-28 | 1979-09-07 | Ricoh Co Ltd | Correction system of line distortion in facsimile communication |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2557552Y2 (en) | 1997-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |