JPH03128349U - - Google Patents
Info
- Publication number
- JPH03128349U JPH03128349U JP3736190U JP3736190U JPH03128349U JP H03128349 U JPH03128349 U JP H03128349U JP 3736190 U JP3736190 U JP 3736190U JP 3736190 U JP3736190 U JP 3736190U JP H03128349 U JPH03128349 U JP H03128349U
- Authority
- JP
- Japan
- Prior art keywords
- function
- call
- telephone
- detection circuit
- switch
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Description
第1図はこの考案に係る電話機の実施例を示す
ブロツク図である。
主な符号の説明、7……スイツチ、8……切換
器、9……通話検出回路。
FIG. 1 is a block diagram showing an embodiment of a telephone according to this invention. Explanation of main symbols, 7... switch, 8... switching device, 9... call detection circuit.
Claims (1)
を検出すると共に、被発呼時にはこの電話機のオ
フフツク状態を検出する通話検出回路と、キヤツ
チホン用のキーのように通話中に使用する機能と
リダイアルキーのように非通話中に使用する機能
との2つの機能を有するスイツチと、前記スイツ
チの機能を切り換える機能切換回路とを設け、通
話検出回路が通話中であることを検出した時には
、通話検出回路は前記スイツチの機能が通話中に
使用する機能になるように前記機能切換回路を制
御し、然らざる時、通話検出回路は前記スイツチ
の機能が非通話中に使用する機能になるように前
記機能切換回路を制御するように構成したことを
特徴とする電話機。 A call detection circuit that detects the off-hook state of the called party's telephone when making a call, and detects the off-hook state of this telephone when receiving a call, and a function and redial key that are used during a call like keys for a telephone. A switch having two functions such as a function to be used while not talking, and a function switching circuit for switching the function of the switch are provided, and when the call detection circuit detects that a call is in progress, the call detection circuit controls the function switching circuit so that the function of the switch becomes the function used during a call, and if this is not the case, the call detection circuit controls the function switching circuit so that the function of the switch becomes the function used during a non-call. A telephone set configured to control a function switching circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990037361U JP2553870Y2 (en) | 1990-04-09 | 1990-04-09 | Telephone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990037361U JP2553870Y2 (en) | 1990-04-09 | 1990-04-09 | Telephone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03128349U true JPH03128349U (en) | 1991-12-24 |
JP2553870Y2 JP2553870Y2 (en) | 1997-11-12 |
Family
ID=31544400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990037361U Expired - Lifetime JP2553870Y2 (en) | 1990-04-09 | 1990-04-09 | Telephone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2553870Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0193952A (en) * | 1987-10-06 | 1989-04-12 | Nissan Motor Co Ltd | Car telephone |
-
1990
- 1990-04-09 JP JP1990037361U patent/JP2553870Y2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0193952A (en) * | 1987-10-06 | 1989-04-12 | Nissan Motor Co Ltd | Car telephone |
Also Published As
Publication number | Publication date |
---|---|
JP2553870Y2 (en) | 1997-11-12 |
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