KR930022781A - On-site wireless telephone system - Google Patents
On-site wireless telephone systemInfo
- Publication number
- KR930022781A KR930022781A KR1019920006986A KR920006986A KR930022781A KR 930022781 A KR930022781 A KR 930022781A KR 1019920006986 A KR1019920006986 A KR 1019920006986A KR 920006986 A KR920006986 A KR 920006986A KR 930022781 A KR930022781 A KR 930022781A
- Authority
- KR
- South Korea
- Prior art keywords
- telephone system
- wireless telephone
- transmitting
- control circuit
- transceiver
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims abstract 3
- 230000035945 sensitivity Effects 0.000 claims abstract 3
- 230000003321 amplification Effects 0.000 claims abstract 2
- 230000005684 electric field Effects 0.000 claims abstract 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract 2
- 230000002194 synthesizing Effects 0.000 claims 1
- 230000001702 transmitter Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
수신 전계감도에 따라 제어회로에서 송신 및 수신증폭레벨을 제어하여 상호 고주파회로에 서로 간섭을 일으키지않도록 하는 구내 무선전화시스템에 관한 것으로서 제어회로 및 송수신 증폭기 사이에 연결되어 제어회로의 출력신호에 따라 송수신 증폭기의 바이어스전류를 제어하는 바이어스 조절부를 구비하여 주변 고주파회로와의 상호간섭을 억제시킬 뿐만 아니라 송수신부로 입력되는 신호레벨을 낮추게되어 근접된 송수신시 소비전류를 감소시키고, 혼선 및 오동작을 발생을 줄일 수 있도록 한 것이다.A wireless telephone system in a premises that controls transmission and reception amplification levels in a control circuit according to a received electric field sensitivity so that mutual high frequency circuits do not interfere with each other. A bias control unit for controlling the bias current of the amplifier not only suppresses mutual interference with neighboring high frequency circuits, but also lowers the signal level input to the transmitter / receiver, reducing current consumption during close transmission and reception, and reducing crosstalk and malfunction. I would have to.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제4도는 본 발명에 따른 고주파회로의 블럭도.4 is a block diagram of a high frequency circuit according to the present invention.
제5도는 본 발명에 따른 고주파회로의 상세도.5 is a detailed view of a high frequency circuit according to the present invention.
Claims (2)
Publications (1)
Publication Number | Publication Date |
---|---|
KR930022781A true KR930022781A (en) | 1993-11-24 |
Family
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010016135A (en) * | 2000-11-10 | 2001-03-05 | 송형선 | Power Control Method for Long-Run Data Transmission Through Phoneline |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010016135A (en) * | 2000-11-10 | 2001-03-05 | 송형선 | Power Control Method for Long-Run Data Transmission Through Phoneline |
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