JPH0466832U - - Google Patents
Info
- Publication number
- JPH0466832U JPH0466832U JP10847390U JP10847390U JPH0466832U JP H0466832 U JPH0466832 U JP H0466832U JP 10847390 U JP10847390 U JP 10847390U JP 10847390 U JP10847390 U JP 10847390U JP H0466832 U JPH0466832 U JP H0466832U
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- field strength
- base unit
- cordless telephone
- transmitting output
- 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
- 230000005684 electric field Effects 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Description
第１図は本考案の実施例のコードレス電話装置
の子機の無線部の構成を示すブロツク図、第２図
は切替え回路の詳細な構成を示す図である。
１０……子機、３……変調器、４……電力増幅
器、５……切替え回路、６……受信機無線回路、
７……マイコン、４１……前段増幅器、５１……
半固定抵抗、５２……抵抗、５３……電流スイツ
チ、６２……検波回路、６３……Ａ／Ｄ変換器。
FIG. 1 is a block diagram showing the configuration of a wireless section of a handset of a cordless telephone device according to an embodiment of the present invention, and FIG. 2 is a diagram showing the detailed configuration of a switching circuit. 10... Child unit, 3... Modulator, 4... Power amplifier, 5... Switching circuit, 6... Receiver radio circuit,
7...Microcomputer, 41...Pre-stage amplifier, 51...
Semi-fixed resistor, 52...Resistor, 53...Current switch, 62...Detection circuit, 63...A/D converter.
Claims (1)
行う測定手段と、 この測定手段により測定された電界強度が大で
ある子機の送信出力を小とし、前記電界強度が小
である子機の送信出力と大とする送信出力制御手
段と を備えることを特徴とするコードレス電話装置。 (2) 子機における受信信号の受信レベルにより
前記電界強度の測定を行うことを特徴とする請求
項１記載のコードレス電話装置。 (3) 子機の電力増幅器の最終段の前段のトラン
ジスタのコレクタに印加するコレクタバイアス電
圧を変化させることで送信出力の制御を行うこと
を特徴とする請求項１または２記載のコードレス
電話装置。[Claims for Utility Model Registration] (1) A base unit connected to a telephone line, a plurality of slave units wirelessly connected to the base unit, and electric field strength between the base unit and the slave units. A measuring means for performing the measurement; and a transmitting output control means for reducing the transmitting output of a slave device whose electric field strength measured by the measuring means is high, and increasing the transmitting output of the slave device whose electric field strength is small. A cordless telephone device comprising: (2) The cordless telephone device according to claim 1, wherein the electric field strength is measured based on the reception level of the reception signal in the handset. (3) The cordless telephone device according to claim 1 or 2, wherein the transmission output is controlled by changing the collector bias voltage applied to the collector of a transistor at a stage before the final stage of a power amplifier of the handset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10847390U JPH0466832U (en) | 1990-10-18 | 1990-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10847390U JPH0466832U (en) | 1990-10-18 | 1990-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0466832U true JPH0466832U (en) | 1992-06-12 |
Family
ID=31855495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10847390U Pending JPH0466832U (en) | 1990-10-18 | 1990-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0466832U (en) |
-
1990
- 1990-10-18 JP JP10847390U patent/JPH0466832U/ja active Pending
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