KR20060003144A - 이동통신단말기의 송수신장치 - Google Patents
이동통신단말기의 송수신장치 Download PDFInfo
- Publication number
- KR20060003144A KR20060003144A KR1020040051940A KR20040051940A KR20060003144A KR 20060003144 A KR20060003144 A KR 20060003144A KR 1020040051940 A KR1020040051940 A KR 1020040051940A KR 20040051940 A KR20040051940 A KR 20040051940A KR 20060003144 A KR20060003144 A KR 20060003144A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- transmission
- duplexer
- antenna
- received
- Prior art date
Links
- 238000010295 mobile communication Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
Description
Claims (2)
- 안테나(ATN)를 통해 무선신호를 송수신하는 이동통신단말기에 있어서,송신데이터를 제공하는 이동국모뎀과;상기 안테나를 통해 송수신되는 무선신호를 송신신호와 수신신호로 분리하는 듀플렉서와;상기 수신신호를 저잡음 증폭하는 저잡음증폭기(Low Noise Amplifier)와;상기 이동국모뎀의 제어에 따라, 상기 무선신호의 송신을 위한 송신출력이 오프상태인 경우 상기 안테나로 수신 된 무선 수신신호가 상기 저잡음증폭기로 입력되도록 하고, 상기 송신출력이 턴온상태인 경우 상기 안테나로 수신되어 상기 듀플렉서를 통해 분리 된 수신신호가 상기 저잡음증폭기로 입력되도록 동작하는 스위칭부를 포함하는 것을 특징으로 하는 이동통신단말기의 송수신장치.
- 제 1 항에 있어서,상기 스위칭부는,상기 듀플렉서의 출력단과 연결되는 제1입력포트와, 상기 안테나로 수신 된 무선신호가 입력되는 상기 듀플렉서의 입력단과 연결되는 제2입력포트와, 상기 저잡음증폭기와 연결되는 출력포트를 가지고, 상기 이동국모뎀이 출력하는 제어신호에 따라 상기 제1입력포트 및 상기 제2입력포트 중 어느 하나가 상기 출력포트와 연결되도록 동작하는 2채널 스위칭 트랜지스터인 것을 특징으로 하는 이동통신단말 기의 송수신장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040051940A KR100626530B1 (ko) | 2004-07-05 | 2004-07-05 | 이동통신단말기의 송수신장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040051940A KR100626530B1 (ko) | 2004-07-05 | 2004-07-05 | 이동통신단말기의 송수신장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060003144A true KR20060003144A (ko) | 2006-01-10 |
KR100626530B1 KR100626530B1 (ko) | 2006-09-20 |
Family
ID=37105682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040051940A KR100626530B1 (ko) | 2004-07-05 | 2004-07-05 | 이동통신단말기의 송수신장치 |
Country Status (1)
Country | Link |
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KR (1) | KR100626530B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7381233B2 (en) | 2006-06-16 | 2008-06-03 | Samsung Gwangju Electronics Co., Ltd. | Dust collecting apparatus for vacuum cleaner |
US8837331B2 (en) | 2011-02-02 | 2014-09-16 | Qualcomm Incorporated | Duplexer bypass |
-
2004
- 2004-07-05 KR KR1020040051940A patent/KR100626530B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7381233B2 (en) | 2006-06-16 | 2008-06-03 | Samsung Gwangju Electronics Co., Ltd. | Dust collecting apparatus for vacuum cleaner |
US8837331B2 (en) | 2011-02-02 | 2014-09-16 | Qualcomm Incorporated | Duplexer bypass |
Also Published As
Publication number | Publication date |
---|---|
KR100626530B1 (ko) | 2006-09-20 |
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