JPS5618253A - Signal transmission system for air conditioner - Google Patents
Signal transmission system for air conditionerInfo
- Publication number
- JPS5618253A JPS5618253A JP9449179A JP9449179A JPS5618253A JP S5618253 A JPS5618253 A JP S5618253A JP 9449179 A JP9449179 A JP 9449179A JP 9449179 A JP9449179 A JP 9449179A JP S5618253 A JPS5618253 A JP S5618253A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- indoor unit
- levels
- converted
- outdoor unit
- 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.)
- Granted
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
PURPOSE: To improve the characteristics of transmitted signals, by transmitting a signal from an indoor unit to an outdoor unit at a plurality of discrete DC levels and transmitting a signal from the outdoor unit to the indoor unit in the form of short-period pulses.
CONSTITUTION: A signal is converted to discrete DC levels by inverters 121, 123, 125 and resistors 122, 124, 126, and 220 so that the converted signal is transmitted from an indoor unit 110 to an outdoor unit 210 through a transmission line SD. A signal is converted into short-time pulses of a prescribed level by a monostable multivibrator 249 so that the pulses are transmitted from the outdoor unit 210 to the indoor unit 110 through the transmission line SD. According to this constitution, the number of connected electric wires between the indoor and the outdoor units can be reduced and the difference between transmission levels can be made large. This results in enlarging the noise margin at each transmission level and improving the characteristics of the transmitted signals.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54094491A JPS6054565B2 (en) | 1979-07-24 | 1979-07-24 | Signal transmission device for air conditioners |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54094491A JPS6054565B2 (en) | 1979-07-24 | 1979-07-24 | Signal transmission device for air conditioners |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5618253A true JPS5618253A (en) | 1981-02-20 |
JPS6054565B2 JPS6054565B2 (en) | 1985-11-30 |
Family
ID=14111760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54094491A Expired JPS6054565B2 (en) | 1979-07-24 | 1979-07-24 | Signal transmission device for air conditioners |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6054565B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3114917A1 (en) * | 1980-04-28 | 1982-03-25 | Jidosha Kiki Co., Ltd., Tokyo | CLUTCH DEVICE FOR A POWER AMPLIFIER |
JPS58214338A (en) * | 1982-06-04 | 1983-12-13 | Kyowa Chem Ind Co Ltd | Composite adsorbent |
JPS5963436A (en) * | 1982-10-01 | 1984-04-11 | Sharp Corp | Control circuit for air conditioner |
JPS61121833U (en) * | 1985-01-14 | 1986-07-31 | ||
JPH04170962A (en) * | 1990-11-02 | 1992-06-18 | Amenitec:Kk | Reforming method for deodorization filler |
-
1979
- 1979-07-24 JP JP54094491A patent/JPS6054565B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3114917A1 (en) * | 1980-04-28 | 1982-03-25 | Jidosha Kiki Co., Ltd., Tokyo | CLUTCH DEVICE FOR A POWER AMPLIFIER |
JPS58214338A (en) * | 1982-06-04 | 1983-12-13 | Kyowa Chem Ind Co Ltd | Composite adsorbent |
JPS5963436A (en) * | 1982-10-01 | 1984-04-11 | Sharp Corp | Control circuit for air conditioner |
JPH0154621B2 (en) * | 1982-10-01 | 1989-11-20 | Sharp Kk | |
JPS61121833U (en) * | 1985-01-14 | 1986-07-31 | ||
JPH04170962A (en) * | 1990-11-02 | 1992-06-18 | Amenitec:Kk | Reforming method for deodorization filler |
Also Published As
Publication number | Publication date |
---|---|
JPS6054565B2 (en) | 1985-11-30 |
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