JPH0357645U - - Google Patents
Info
- Publication number
- JPH0357645U JPH0357645U JP11812689U JP11812689U JPH0357645U JP H0357645 U JPH0357645 U JP H0357645U JP 11812689 U JP11812689 U JP 11812689U JP 11812689 U JP11812689 U JP 11812689U JP H0357645 U JPH0357645 U JP H0357645U
- Authority
- JP
- Japan
- Prior art keywords
- charging current
- battery
- charger
- detection circuit
- gain
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 229910003307 Ni-Cd Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Description
図は本考案の一実施例を示す回路図である。
１……子機、４……送信部、５……受信部、８
……受話音声増幅器、１０……制御部、１２……
Ｎｉ−Ｃｄ電池、１３……充電器、１７……充電
回路、２７……充電電流検出回路、３０……利得
制御回路。
The figure is a circuit diagram showing an embodiment of the present invention. 1...Slave device, 4...Transmitter, 5...Receiver, 8
... Receiving audio amplifier, 10 ... Control section, 12 ...
Ni-Cd battery, 13...Charger, 17...Charging circuit, 27...Charging current detection circuit, 30...Gain control circuit.
Claims (1)
回線を介して接続され且つ充電可能な電池にて駆
動される子機とよりなるコードレス電話機であつ
て、前記子機の電池を充電するための充電器と、
この充電器から前記電池への充電電流の有無を検
出する充電電流検出回路と、この充電電流検出回
路からの検出信号に応じて前記子機の受話音声増
幅器の利得を制御する利得制御回路とを備え、前
記充電器による前記子機の電池の充電時、充電電
流の存在を示す前記充電電流検出回路からの検出
信号に応じて前記受話音声増幅器の利得を増大す
るようにしたことを特徴とするコードレス電話機
。 A cordless telephone comprising a base unit connected to a telephone line and a slave unit connected to the base unit via a wireless line and powered by a rechargeable battery, the battery of the slave unit being charged. and a charger for
a charging current detection circuit that detects the presence or absence of charging current from the charger to the battery; and a gain control circuit that controls the gain of the receiving audio amplifier of the handset according to the detection signal from the charging current detection circuit. The present invention is characterized in that when the battery of the handset is being charged by the charger, the gain of the receiving audio amplifier is increased in response to a detection signal from the charging current detection circuit indicating the presence of a charging current. Cordless telephone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11812689U JPH0357645U (en) | 1989-10-06 | 1989-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11812689U JPH0357645U (en) | 1989-10-06 | 1989-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0357645U true JPH0357645U (en) | 1991-06-04 |
Family
ID=31666311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11812689U Pending JPH0357645U (en) | 1989-10-06 | 1989-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0357645U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11108782A (en) * | 1997-10-02 | 1999-04-23 | Denso Corp | Semiconductor dynamic quantity sensor |
| JP2006160266A (en) * | 2004-12-02 | 2006-06-22 | Sanko Co Ltd | Rectangular container |
| JP2012021923A (en) * | 2010-07-16 | 2012-02-02 | Denso Corp | Sensor chip mounting structure and mounting method thereof |
| JP2019032238A (en) * | 2017-08-08 | 2019-02-28 | 富士電機株式会社 | Method of manufacturing pressure sensor device, pressure sensor device and distance fixture |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6357540B2 (en) * | 1979-01-16 | 1988-11-11 | Teijin Ltd |
-
1989
- 1989-10-06 JP JP11812689U patent/JPH0357645U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6357540B2 (en) * | 1979-01-16 | 1988-11-11 | Teijin Ltd |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11108782A (en) * | 1997-10-02 | 1999-04-23 | Denso Corp | Semiconductor dynamic quantity sensor |
| JP2006160266A (en) * | 2004-12-02 | 2006-06-22 | Sanko Co Ltd | Rectangular container |
| JP2012021923A (en) * | 2010-07-16 | 2012-02-02 | Denso Corp | Sensor chip mounting structure and mounting method thereof |
| JP2019032238A (en) * | 2017-08-08 | 2019-02-28 | 富士電機株式会社 | Method of manufacturing pressure sensor device, pressure sensor device and distance fixture |
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