JPH0288354U - - Google Patents
Info
- Publication number
- JPH0288354U JPH0288354U JP16697188U JP16697188U JPH0288354U JP H0288354 U JPH0288354 U JP H0288354U JP 16697188 U JP16697188 U JP 16697188U JP 16697188 U JP16697188 U JP 16697188U JP H0288354 U JPH0288354 U JP H0288354U
- Authority
- JP
- Japan
- Prior art keywords
- dial signal
- code string
- signal changes
- transmission circuit
- assigned
- 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
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Time-Division Multiplex Systems (AREA)
Description
第１図はこの考案の一実施例を示す構成ダイア
ル信号伝送回路のブロツク図、第２図は第１図の
動作状態を示す信号波形図、第３図は従来のダイ
アル信号伝送の信号の説明図である。
図において、１は変化検出器、２はインタバル
タイマ、３，４は符号発生器、５はＯＲ回路、６
はセレクタを示す。
Fig. 1 is a block diagram of a configuration dial signal transmission circuit showing an embodiment of this invention, Fig. 2 is a signal waveform diagram showing the operating state of Fig. 1, and Fig. 3 is an explanation of signals of conventional dial signal transmission. It is a diagram. In the figure, 1 is a change detector, 2 is an interval timer, 3 and 4 are code generators, 5 is an OR circuit, and 6
indicates a selector.
Claims (1)
ｆへの変化に対しそれぞれ符号列を割当て、ダイ
アル信号がｏｆｆからｏｎに変化した時対応する
符号列を伝送し、ｏｎからｏｆｆに変化した時又
はｏｆｆの期間が一定期間続いた時、ｏｎからｏ
ｆｆに対応する符号列を送る事を特徴とするダイ
アル信号伝送回路。 Dial signal Off to On, On to Off
A code string is assigned to each change to f, and when the dial signal changes from off to on, the corresponding code string is transmitted, and when the dial signal changes from on to off or when the off period continues for a certain period, o
A dial signal transmission circuit characterized by transmitting a code string corresponding to ff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988166971U JPH0727740Y2 (en) | 1988-12-24 | 1988-12-24 | Dial signal transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988166971U JPH0727740Y2 (en) | 1988-12-24 | 1988-12-24 | Dial signal transmission circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0288354U true JPH0288354U (en) | 1990-07-12 |
| JPH0727740Y2 JPH0727740Y2 (en) | 1995-06-21 |
Family
ID=31454842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988166971U Expired - Lifetime JPH0727740Y2 (en) | 1988-12-24 | 1988-12-24 | Dial signal transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0727740Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63312736A (en) * | 1987-06-16 | 1988-12-21 | Mitsubishi Electric Corp | Dial signal transmission system |
-
1988
- 1988-12-24 JP JP1988166971U patent/JPH0727740Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63312736A (en) * | 1987-06-16 | 1988-12-21 | Mitsubishi Electric Corp | Dial signal transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0727740Y2 (en) | 1995-06-21 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |