JPH0216633U - - Google Patents
Info
- Publication number
- JPH0216633U JPH0216633U JP1988095584U JP9558488U JPH0216633U JP H0216633 U JPH0216633 U JP H0216633U JP 1988095584 U JP1988095584 U JP 1988095584U JP 9558488 U JP9558488 U JP 9558488U JP H0216633 U JPH0216633 U JP H0216633U
- Authority
- JP
- Japan
- Prior art keywords
- cordless telephone
- telephone device
- base unit
- slave unit
- emphasis operation
- 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 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Description
第１図は本考案なるコードレス電話装置の一実
施例を示すブロツク系統図、第２図はコードレス
電話装置の一例を示す斜視図、第３図ａはノイズ
レベルと帯域カツトの状況を示す図、同図ｂはノ
イズレベルと変調度の関係を示す図である。
１……親機、２……子機、３，４……アンテナ
、５……電源コード、６……通話ライン、７，１
２……マイク、８，１３……スピーカ、９……テ
ンキー群、１０……子機収納部、１１……交信用
スイツチ、１４……着信信号検出部、１５，１６
，２５……低周波増幅器、１７……通話チヤンネ
ル選択部、１８……キヤリア発生部、１９……変
調器、２０……送信出力部、２１，２６……フイ
ルタ、２２……高周波増幅器、２３……中間周波
増幅器、２４……検波回路、２７……アンプ、２
８……整流回路、２９……比較器。
Fig. 1 is a block system diagram showing an embodiment of the cordless telephone device of the present invention, Fig. 2 is a perspective view showing an example of the cordless telephone device, Fig. 3a is a diagram showing the situation of noise level and band cut, Figure b is a diagram showing the relationship between noise level and modulation degree. 1...Base unit, 2...Slave unit, 3, 4...Antenna, 5...Power cord, 6...Call line, 7,1
2...Microphone, 8, 13...Speaker, 9...Numeric keypad group, 10...Slave device housing, 11...Communication switch, 14...Incoming signal detection unit, 15, 16
, 25...Low frequency amplifier, 17...Speech channel selection section, 18...Carrier generation section, 19...Modulator, 20...Transmission output section, 21, 26...Filter, 22...High frequency amplifier, 23 ...Intermediate frequency amplifier, 24...Detection circuit, 27...Amplifier, 2
8... Rectifier circuit, 29... Comparator.
Claims (1)
受信部を備え、前記親機と子機との間で無線通話
を行なうコードレス電話装置において、 受信信号の一部を取り出し、そこに含まれるノ
イズ成分を検出し、 ノイズ成分が多い時に、前記送信部にプリエン
フアシス動作をさせると共に、前記受信部にデエ
ンフアシス動作をさせることを特徴とするコード
レス電話装置。[Claims for Utility Model Registration] A cordless telephone device consisting of a base unit and a slave unit, each of which is equipped with a transmitter and a receiver, and which performs wireless communication between the base unit and the slave unit, A cordless telephone device, wherein a portion of the cordless telephone is extracted, a noise component contained therein is detected, and when there are many noise components, the transmitting section performs a pre-emphasis operation and the receiving section performs a de-emphasis operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988095584U JPH0216633U (en) | 1988-07-19 | 1988-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988095584U JPH0216633U (en) | 1988-07-19 | 1988-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0216633U true JPH0216633U (en) | 1990-02-02 |
Family
ID=31320265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988095584U Pending JPH0216633U (en) | 1988-07-19 | 1988-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216633U (en) |
-
1988
- 1988-07-19 JP JP1988095584U patent/JPH0216633U/ja active Pending
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