JPS6416149A - Transmission power control system - Google Patents
Transmission power control systemInfo
- Publication number
- JPS6416149A JPS6416149A JP62172340A JP17234087A JPS6416149A JP S6416149 A JPS6416149 A JP S6416149A JP 62172340 A JP62172340 A JP 62172340A JP 17234087 A JP17234087 A JP 17234087A JP S6416149 A JPS6416149 A JP S6416149A
- Authority
- JP
- Japan
- Prior art keywords
- transmission power
- reception
- threshold
- circuit
- receiver
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C9/00—Healds; Heald frames
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
- Looms (AREA)
Abstract
PURPOSE:To accurately control the transmission power in consideration of the communication quality without interfering with another line, by controlling the transmission power of the transmission side on the reception side only when the reception level and the bit error rate satisfy prescribed conditions together. CONSTITUTION:Each receiver of a receiver group 1 in a reception station converts the input signal to an intermediate frequency signal by a reception part Rx and sends it to an AGC circuit. A reception level discriminating circuit 2 discriminates whether reception levels on all lines exceed a threshold or not in accordance with control voltages of respective AGC circuits, and the circuit 2 outputs '1' when they exceed the threshold. Parity check of the demodulated signal from each demodulator DEM is performed at intervals of a certain time by a bit error rate discriminating circuit 3 to obtain the bit error rate, and it is compared with a threshold, and logical signal '1' is outputted if it is lower than the threshold. When receiving logical signals '1' from discriminating circuits 2 and 3, an AND gate 4 energizes a a transmitter 5 to transmit a transmission power control signal to a receiver 6 on the side of the transmission station. In the receiver 6, the transmission power control signal is given to a transmission power control circuit 7 and a variable attenuator ATT is controlled to reduce the transmission power from each transmission part Tx.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172340A JPS6416149A (en) | 1987-07-10 | 1987-07-10 | Transmission power control system |
KR1019880008494A KR940010629B1 (en) | 1987-07-10 | 1988-07-08 | Heddle magazine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172340A JPS6416149A (en) | 1987-07-10 | 1987-07-10 | Transmission power control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6416149A true JPS6416149A (en) | 1989-01-19 |
Family
ID=15940089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62172340A Pending JPS6416149A (en) | 1987-07-10 | 1987-07-10 | Transmission power control system |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS6416149A (en) |
KR (1) | KR940010629B1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60241336A (en) * | 1984-05-10 | 1985-11-30 | スタンダード・エレクトリツク・ローレンツ・アクチエンゲゼルシヤフト | Radio wave system |
JPS6143026A (en) * | 1984-08-06 | 1986-03-01 | Nippon Telegr & Teleph Corp <Ntt> | System for controlling and transmitting received electric field |
-
1987
- 1987-07-10 JP JP62172340A patent/JPS6416149A/en active Pending
-
1988
- 1988-07-08 KR KR1019880008494A patent/KR940010629B1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60241336A (en) * | 1984-05-10 | 1985-11-30 | スタンダード・エレクトリツク・ローレンツ・アクチエンゲゼルシヤフト | Radio wave system |
JPS6143026A (en) * | 1984-08-06 | 1986-03-01 | Nippon Telegr & Teleph Corp <Ntt> | System for controlling and transmitting received electric field |
Also Published As
Publication number | Publication date |
---|---|
KR890002460A (en) | 1989-04-10 |
KR940010629B1 (en) | 1994-10-24 |
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