KR100495105B1 - 와이어레스 로컬 루우프용 모뎀 입력신호의 스위칭장치 - Google Patents
와이어레스 로컬 루우프용 모뎀 입력신호의 스위칭장치 Download PDFInfo
- Publication number
- KR100495105B1 KR100495105B1 KR1019970073553A KR19970073553A KR100495105B1 KR 100495105 B1 KR100495105 B1 KR 100495105B1 KR 1019970073553 A KR1019970073553 A KR 1019970073553A KR 19970073553 A KR19970073553 A KR 19970073553A KR 100495105 B1 KR100495105 B1 KR 100495105B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- modem
- switching device
- converter
- input signal
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Communication Control (AREA)
Abstract
Description
Claims (1)
- 8.192MHz의 베이스밴드 아날로그 신호로 주파수 다운된 70MHz의 IF신호를 32.768MHz의 디지털 신호로 A/D 변환하는 A/D 변환기(1)와;각 모뎀(M0∼M15)의 아이들 상태에 대응하는 16비트의 준비신호를 4비트의 콘트롤 신호(CS)로 변환하는 콘트롤 로직(3);이 콘트롤 로직(3)으로부터 공급되는 콘트롤 신호(CS)를 인가받아 A/D 변환기(1)의 출력을 각 모뎀(M0∼M15)에 선택적으로 공급하는 멀티플렉서(2)를 포함하여 구성되어짐을 특징으로 하는 WLL용 모뎀 입력신호의 스위칭장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970073553A KR100495105B1 (ko) | 1997-12-24 | 1997-12-24 | 와이어레스 로컬 루우프용 모뎀 입력신호의 스위칭장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970073553A KR100495105B1 (ko) | 1997-12-24 | 1997-12-24 | 와이어레스 로컬 루우프용 모뎀 입력신호의 스위칭장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990053850A KR19990053850A (ko) | 1999-07-15 |
KR100495105B1 true KR100495105B1 (ko) | 2005-09-02 |
Family
ID=37304490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970073553A KR100495105B1 (ko) | 1997-12-24 | 1997-12-24 | 와이어레스 로컬 루우프용 모뎀 입력신호의 스위칭장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100495105B1 (ko) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09247755A (ja) * | 1996-03-12 | 1997-09-19 | Fujitsu Ltd | 無線アクセス方式 |
US5781856A (en) * | 1995-01-31 | 1998-07-14 | Qualcomm Incorporated | Concentrated subscriber system for wireless local loop |
-
1997
- 1997-12-24 KR KR1019970073553A patent/KR100495105B1/ko not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5781856A (en) * | 1995-01-31 | 1998-07-14 | Qualcomm Incorporated | Concentrated subscriber system for wireless local loop |
JPH09247755A (ja) * | 1996-03-12 | 1997-09-19 | Fujitsu Ltd | 無線アクセス方式 |
Also Published As
Publication number | Publication date |
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KR19990053850A (ko) | 1999-07-15 |
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