KR0158588B1 - 쌍방향 케이블 텔레비젼용 상호정보교환 시스템 - Google Patents
쌍방향 케이블 텔레비젼용 상호정보교환 시스템 Download PDFInfo
- Publication number
- KR0158588B1 KR0158588B1 KR1019950025505A KR19950025505A KR0158588B1 KR 0158588 B1 KR0158588 B1 KR 0158588B1 KR 1019950025505 A KR1019950025505 A KR 1019950025505A KR 19950025505 A KR19950025505 A KR 19950025505A KR 0158588 B1 KR0158588 B1 KR 0158588B1
- Authority
- KR
- South Korea
- Prior art keywords
- subscriber
- broadcasting station
- information
- signal
- frequency
- Prior art date
Links
- 230000002452 interceptive effect Effects 0.000 title description 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005236 sound signal Effects 0.000 description 6
- 230000002265 prevention Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
- H04H20/78—CATV [Community Antenna Television] systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/108—Adaptations for transmission by electrical cable the cable being constituted by a pair of wires
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims (1)
- 유선방송국측과 복수개의 가입자측을 공통의 전송로에 결합시켜 상호정보를 교환하는 쌍방향 CATV용 상호정보교환시스템에 있어서, 가입자측의 컨버터가, 표시부에서 들어오는 키입력의 정보가 즉시처리요구인지 순차처리요구인지를 판단하여 즉시처리요구 신호의 전송주파수와 순차처리응답 신호의 전송주파수를 달리하도록 제어신호를 출력하는 마이콤(37)과, 상기 마이콤(37)에서 출력되는 제어신호로 유선방송국측과 가입자측의 데이타통신시 고속전송을 제어하는 HDLC부(38)와, 상기 마이콤(37)의 제어신호에 의해 상기 HDLC부(38)에 출력되는 데이타를 즉시처리용 반송주파수와 순차처리용 반송주파수를 달리하여 주파수편이방식으로 변조하는 FSK모뎀(39)를 구비함을 특징으로 하는 쌍방향 CATV용 상호정보교환 시스템.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950025505A KR0158588B1 (ko) | 1995-08-18 | 1995-08-18 | 쌍방향 케이블 텔레비젼용 상호정보교환 시스템 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950025505A KR0158588B1 (ko) | 1995-08-18 | 1995-08-18 | 쌍방향 케이블 텔레비젼용 상호정보교환 시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970014309A KR970014309A (ko) | 1997-03-29 |
KR0158588B1 true KR0158588B1 (ko) | 1998-12-15 |
Family
ID=19423786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950025505A KR0158588B1 (ko) | 1995-08-18 | 1995-08-18 | 쌍방향 케이블 텔레비젼용 상호정보교환 시스템 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0158588B1 (ko) |
-
1995
- 1995-08-18 KR KR1019950025505A patent/KR0158588B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR970014309A (ko) | 1997-03-29 |
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