JPS643239U - - Google Patents
Info
- Publication number
- JPS643239U JPS643239U JP9427187U JP9427187U JPS643239U JP S643239 U JPS643239 U JP S643239U JP 9427187 U JP9427187 U JP 9427187U JP 9427187 U JP9427187 U JP 9427187U JP S643239 U JPS643239 U JP S643239U
- Authority
- JP
- Japan
- Prior art keywords
- oscillation
- signal
- dial
- section
- control
- 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
- 230000010355 oscillation Effects 0.000 claims description 20
- 238000010586 diagram Methods 0.000 description 1
- 230000010356 wave oscillation Effects 0.000 description 1
Description
第１図は本考案の実施例によるダイヤル回路の
ブロツク図である。
１，４，８……制御回路、２……クロツク信号
発振回路、３……ダイヤル回路制御部、５……Ｍ
Ｆ信号発振回路、６……ダイヤルパルス発振回路
、７……ダイヤル信号発振部、９……ＲＯＭ、１
０……キートーン正弦波発振回路、１１……キー
トーン合成音声発振回路、１２……キートーン発
振部、１４……ダイヤルキー、１６……ダイヤル
信号選択信号線、１７，１８……ダイヤル信号発
振制御信号線、１９……クロツク信号線、２０…
…キートーン発振制御信号線、２１……キートー
ン出力選択信号線。
FIG. 1 is a block diagram of a dial circuit according to an embodiment of the present invention. 1, 4, 8...Control circuit, 2...Clock signal oscillation circuit, 3...Dial circuit control section, 5...M
F signal oscillation circuit, 6...Dial pulse oscillation circuit, 7...Dial signal oscillation section, 9...ROM, 1
0... Key tone sine wave oscillation circuit, 11... Key tone synthetic voice oscillation circuit, 12... Key tone oscillation unit, 14... Dial key, 16... Dial signal selection signal line, 17, 18... Dial signal oscillation control signal Line, 19... Clock signal line, 20...
...Key tone oscillation control signal line, 21...Key tone output selection signal line.
Claims (1)
制御部と、ダイヤルパルス発振回路およびＭＦ信
号発振回路を備えたダイヤル信号発振部と、キー
トーン発振回路およびＲＯＭを備えたキートーン
発振部とを有し、前記制御部のクロツク信号出力
が前記ダイヤル信号発振部および前記キートーン
発振部に入力され、前記制御部のダイヤル信号発
振制御信号およびダイヤル信号選択信号が前記ダ
イヤル信号発振部に入力され、前記制御部のキー
トーン発振制御信号およびキートーン出力選択信
号が前記キートーン発振部に入力されるようにそ
れぞれ接続されることを特徴とする電話機のダイ
ヤル回路。 a control unit including a control circuit and a clock signal oscillation circuit; a dial signal oscillation unit including a dial pulse oscillation circuit and an MF signal oscillation circuit; and a keytone oscillation unit including a keytone oscillation circuit and a ROM; A clock signal output from the control section is input to the dial signal oscillation section and the key tone oscillation section, a dial signal oscillation control signal and a dial signal selection signal from the control section are input to the dial signal oscillation section, and the key tone oscillation section from the control section is inputted to the dial signal oscillation section. A dial circuit for a telephone set, wherein a control signal and a key tone output selection signal are respectively connected to be input to the key tone oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9427187U JPS643239U (en) | 1987-06-19 | 1987-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9427187U JPS643239U (en) | 1987-06-19 | 1987-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643239U true JPS643239U (en) | 1989-01-10 |
Family
ID=31318777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9427187U Pending JPS643239U (en) | 1987-06-19 | 1987-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643239U (en) |
-
1987
- 1987-06-19 JP JP9427187U patent/JPS643239U/ja active Pending