JPH0434053U - - Google Patents
Info
- Publication number
- JPH0434053U JPH0434053U JP7641390U JP7641390U JPH0434053U JP H0434053 U JPH0434053 U JP H0434053U JP 7641390 U JP7641390 U JP 7641390U JP 7641390 U JP7641390 U JP 7641390U JP H0434053 U JPH0434053 U JP H0434053U
- Authority
- JP
- Japan
- Prior art keywords
- predetermined
- changing
- signal
- frequency band
- frequency 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Description
第１図はＤＴＭＦ信号の説明図、第２図は本考
案の一実施例であるＤＴＭＦ信号通信機器の電気
回路ブロツク図、第３図はそのデコーダの実行す
る組合せ変更の説明図、第４図は第二実施例のＤ
ＴＭＦ信号通信機器をＤＴＭＦ信号送信側に利用
した場合の電気回路ブロツク図、第５図は第一実
施れ及び第二実施例のＤＴＭＦ信号通信機器を共
に利用して双方向通信システムとした場合の電気
回路ブロツク図を示している。
１０，４０……ＤＴＭＦ信号通信機器、１０ａ
……極性反転検出回路、１０ｂ……切替リレー、
１０ｃ……Ａ／Ｄ変換器、１０ｄ……デコーダ、
１０ｅ……Ｄ／Ａ変換器、１０ｆ……タイマ、２
０……ＤＴＭＦ信号受信機器、３０……電話回線
、５０……ＤＴＭＦ信号送信機器、６０……ＤＴ
ＭＦ信号送受信機器。
Fig. 1 is an explanatory diagram of a DTMF signal, Fig. 2 is an electric circuit block diagram of a DTMF signal communication device that is an embodiment of the present invention, Fig. 3 is an explanatory diagram of combination changes executed by the decoder, and Fig. 4 is D of the second embodiment
Fig. 5 is an electric circuit block diagram when the TMF signal communication equipment is used on the DTMF signal transmission side. It shows an electrical circuit block diagram. 10,40...DTMF signal communication equipment, 10a
...Polarity reversal detection circuit, 10b...Switching relay,
10c...A/D converter, 10d...decoder,
10e...D/A converter, 10f...Timer, 2
0...DTMF signal receiving device, 30...Telephone line, 50...DTMF signal transmitting device, 60...DT
MF signal transmitting and receiving equipment.
Claims (1)
域の周波数信号との組合せが規定されているＤＴ
ＭＦ信号を利用し、データ通信を実行するＤＴＭ
Ｆ信号通信機器において、 前記ＤＴＭＦ信号により使用される前記音声周
波数帯域の周波数信号を入力する入力手段と、 該入力手段により入力された前記音声周波数帯
域の周波数信号を、所定の規則性に則つて他の前
記所定の音声周波数帯域の周波数信号に変更し、
出力する組合せ変更手段と、 該組合せ変更手段の実行する周波数信号の変更
に際しての前記所定の規則性を、所定指令に応じ
て変更する規則性変更手段と、 を備えることを特徴とするＤＴＭＦ信号通信機器
。[Claims for Utility Model Registration] A DT in which a combination of predetermined alphanumeric characters and symbols and a frequency signal in a predetermined audio frequency band is prescribed.
DTM uses MF signals to perform data communication
F signal communication equipment includes an input means for inputting a frequency signal in the audio frequency band used by the DTMF signal, and a frequency signal in the audio frequency band inputted by the input means in accordance with a predetermined regularity. changing to a frequency signal of another predetermined audio frequency band;
DTMF signal communication characterized by comprising: a combination changing means for outputting; and a regularity changing means for changing the predetermined regularity in changing the frequency signal executed by the combination changing means in accordance with a predetermined command. device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7641390U JPH0434053U (en) | 1990-07-16 | 1990-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7641390U JPH0434053U (en) | 1990-07-16 | 1990-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434053U true JPH0434053U (en) | 1992-03-19 |
Family
ID=31617862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7641390U Pending JPH0434053U (en) | 1990-07-16 | 1990-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434053U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010514272A (en) * | 2006-12-15 | 2010-04-30 | クゥアルコム・インコーポレイテッド | Method and apparatus for secure telephone banking |
| JP2010515083A (en) * | 2006-12-15 | 2010-05-06 | クゥアルコム・インコーポレイテッド | Combined combiner encryption method |
| JP2013539293A (en) * | 2010-09-25 | 2013-10-17 | テンディロン コーポレイション | Electronic equipment that communicates with external equipment by voice method |
| JP2015172852A (en) * | 2014-03-12 | 2015-10-01 | 日立オムロンターミナルソリューションズ株式会社 | Guidance phone and automatic cash transaction machine |
-
1990
- 1990-07-16 JP JP7641390U patent/JPH0434053U/ja active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010514272A (en) * | 2006-12-15 | 2010-04-30 | クゥアルコム・インコーポレイテッド | Method and apparatus for secure telephone banking |
| JP2010515083A (en) * | 2006-12-15 | 2010-05-06 | クゥアルコム・インコーポレイテッド | Combined combiner encryption method |
| US8290162B2 (en) | 2006-12-15 | 2012-10-16 | Qualcomm Incorporated | Combinational combiner cryptographic method and apparatus |
| JP2013065025A (en) * | 2006-12-15 | 2013-04-11 | Qualcomm Inc | Method and device for safe telephone banking |
| JP2013539293A (en) * | 2010-09-25 | 2013-10-17 | テンディロン コーポレイション | Electronic equipment that communicates with external equipment by voice method |
| JP2015172852A (en) * | 2014-03-12 | 2015-10-01 | 日立オムロンターミナルソリューションズ株式会社 | Guidance phone and automatic cash transaction machine |
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