JPH0239907B2 - - Google Patents
Info
- Publication number
- JPH0239907B2 JPH0239907B2 JP57148041A JP14804182A JPH0239907B2 JP H0239907 B2 JPH0239907 B2 JP H0239907B2 JP 57148041 A JP57148041 A JP 57148041A JP 14804182 A JP14804182 A JP 14804182A JP H0239907 B2 JPH0239907 B2 JP H0239907B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switch
- signal
- transistor
- line monitoring
- 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.)
- Expired - Lifetime
Links
- 238000012544 monitoring process Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 description 9
- 238000003199 nucleic acid amplification method Methods 0.000 description 9
- 230000005236 sound signal Effects 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000010356 wave oscillation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57148041A JPS5937743A (ja) | 1982-08-25 | 1982-08-25 | 無線電話機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57148041A JPS5937743A (ja) | 1982-08-25 | 1982-08-25 | 無線電話機 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5937743A JPS5937743A (ja) | 1984-03-01 |
| JPH0239907B2 true JPH0239907B2 (ko) | 1990-09-07 |
Family
ID=15443798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57148041A Granted JPS5937743A (ja) | 1982-08-25 | 1982-08-25 | 無線電話機 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937743A (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0815348B2 (ja) * | 1985-08-27 | 1996-02-14 | 日本電信電話株式会社 | 無線電話装置の制御方法 |
| JPS6335341U (ko) * | 1986-08-26 | 1988-03-07 | ||
| JPH0748905B2 (ja) * | 1988-02-05 | 1995-05-24 | ユニデン株式会社 | コードレス電話システムにおける通信制御方法及びこれに用いるコードレス電話装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49120509A (ko) * | 1973-03-17 | 1974-11-18 | ||
| JPS54139319A (en) * | 1978-04-20 | 1979-10-29 | Matsushita Electric Ind Co Ltd | Key telephone system |
-
1982
- 1982-08-25 JP JP57148041A patent/JPS5937743A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49120509A (ko) * | 1973-03-17 | 1974-11-18 | ||
| JPS54139319A (en) * | 1978-04-20 | 1979-10-29 | Matsushita Electric Ind Co Ltd | Key telephone system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5937743A (ja) | 1984-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IL44474A (en) | Battery saving system for duplex radio system | |
| JPS63234654A (ja) | 無線電話装置 | |
| KR910001731B1 (ko) | 코드레스 전화장치 | |
| JPH0239907B2 (ko) | ||
| JP2563179B2 (ja) | コ−ドレス電話機 | |
| JPH029494B2 (ko) | ||
| JPS63222527A (ja) | コ−ドレス電話機 | |
| JP2768757B2 (ja) | コードレス電話機 | |
| KR200213402Y1 (ko) | 핸드 프리 키트 | |
| JPS63187844A (ja) | 無線電話装置 | |
| KR100375317B1 (ko) | 핸드 프리 키트 | |
| JP2655259B2 (ja) | コードレスインターホン | |
| JPS63187845A (ja) | 無線電話装置 | |
| JPS593634Y2 (ja) | コ−ドレス電話装置 | |
| JPS5943641A (ja) | 無線電話機 | |
| JPS63203024A (ja) | コ−ドレス電話機 | |
| JPS60224338A (ja) | コ−ドレステレホン | |
| JPH0626319B2 (ja) | コ−ドレスインタ−ホン | |
| JPH09298585A (ja) | インターホーン付コードレス電話機 | |
| JPH0245864B2 (ko) | ||
| JPH0834497B2 (ja) | 無線通話装置 | |
| JPH0316818B2 (ko) | ||
| JPS63187848A (ja) | 無線受信装置 | |
| JPH03117933A (ja) | 個別呼出装置付き無線電話機 | |
| JPS63187843A (ja) | 無線電話装置 |