JPS6030664U - Tone generation circuit - Google Patents
Tone generation circuitInfo
- Publication number
- JPS6030664U JPS6030664U JP12240583U JP12240583U JPS6030664U JP S6030664 U JPS6030664 U JP S6030664U JP 12240583 U JP12240583 U JP 12240583U JP 12240583 U JP12240583 U JP 12240583U JP S6030664 U JPS6030664 U JP S6030664U
- Authority
- JP
- Japan
- Prior art keywords
- pcm
- signals
- timing
- generation circuit
- signal
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案トーン発生回路を付設したデジタル式交
換機のブロック図、第２図は本考案トーン発生回路のブ
ロック図、第３図はトーンの種類を説明するための要因
、第４図は本考案トーン発生回路の動作を説明するため
のタイミングチャート図である。
４・・・データＲＯＭ１１３・・・サンプリングカウン
タ、１４・・・チャンネルカウンタ、１５・・・継続比
記憶回路、１６〜２３・・・シフトレジスタ、２４・・
・ロードタイミング発生回路。Figure 1 is a block diagram of a digital exchange equipped with the tone generation circuit of the present invention, Figure 2 is a block diagram of the tone generation circuit of the present invention, Figure 3 is a list of factors for explaining the types of tones, and Figure 4 is FIG. 3 is a timing chart for explaining the operation of the tone generating circuit of the present invention. 4...Data ROM113...Sampling counter, 14...Channel counter, 15...Continuation ratio storage circuit, 16-23...Shift register, 24...
・Load timing generation circuit.
Claims (1)
送られてくる多重化されたＰＣＭ信号を入力するととも
に、これらのＰＣＭ信号のタイミングを変化させて出力
し、上記多数の電話器の受信器側に伝える形式のデジタ
ル式変換機の入力側に付設して使用されるトーン発生回
路に於いて、同期的な複数の信号を夫々同数のサンプリ
ング数でＰＣＭ化して記憶したデータＲＯＭと、このデ
ータＲＯＭにタイミング信号を与えることにより上記Ｒ
ＯＭから上記複数のＰＣＭ信号を時間的に多重化された
状態で出力せしめるタイミング回路と、上記ＲＯＭから
の出力の内、夫々所定の信号を表わすＰＣＭコードを順
次受は取る複数のシフトレジスタと、から成り、これら
のシフトレジスタからＰＣＭコードを夫々上記電話器か
らのＰＣＭ信号と合わせて多重化された状態で上記デジ
タル式交換機に入力せしめることを特徴としたトーン発
生回路。It is connected to a large number of telephones, inputs multiplexed PCM signals sent from the transmitter side of these telephones, changes the timing of these PCM signals, and outputs them. In a tone generation circuit attached to the input side of a digital converter that transmits signals to the receiver side of a receiver, a data ROM stores a plurality of synchronous signals converted into PCM with the same number of samplings. By applying a timing signal to this data ROM, the above R
a timing circuit that causes the OM to output the plurality of PCM signals in a temporally multiplexed state; a plurality of shift registers that sequentially receive and receive PCM codes each representing a predetermined signal from the output from the ROM; A tone generating circuit characterized in that the PCM codes from these shift registers are input to the digital exchange in a multiplexed state together with the PCM signal from the telephone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12240583U JPS6030664U (en) | 1983-08-05 | 1983-08-05 | Tone generation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12240583U JPS6030664U (en) | 1983-08-05 | 1983-08-05 | Tone generation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6030664U true JPS6030664U (en) | 1985-03-01 |
| JPH0438622Y2 JPH0438622Y2 (en) | 1992-09-09 |
Family
ID=30279802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12240583U Granted JPS6030664U (en) | 1983-08-05 | 1983-08-05 | Tone generation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030664U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884862A (en) * | 1981-11-16 | 1983-05-21 | Toyo Ink Mfg Co Ltd | Preparation of copper phtalocyanine pigment |
-
1983
- 1983-08-05 JP JP12240583U patent/JPS6030664U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884862A (en) * | 1981-11-16 | 1983-05-21 | Toyo Ink Mfg Co Ltd | Preparation of copper phtalocyanine pigment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0438622Y2 (en) | 1992-09-09 |
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