JPS57120147A - Signal transmission system - Google Patents
Signal transmission systemInfo
- Publication number
- JPS57120147A JPS57120147A JP56005949A JP594981A JPS57120147A JP S57120147 A JPS57120147 A JP S57120147A JP 56005949 A JP56005949 A JP 56005949A JP 594981 A JP594981 A JP 594981A JP S57120147 A JPS57120147 A JP S57120147A
- Authority
- JP
- Japan
- Prior art keywords
- same time
- circuit
- termination
- circuits
- output
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4072—Drivers or receivers
Abstract
PURPOSE:To realize the transmission of an asynchronous series multiplied signal with N:1 bus connection, by reducing the waveform distortion noise according to the matching termination of branch lines and at the same time constituting a transmitting circuit so as to release an output during pause of transferring to prevent the disturbance to the data under the transfering. CONSTITUTION:A branching device is inserted to each branch point of the bus connection to have the matching termination. Thus the waveform distortion noise is reduced to increase the transfer speed of data. At the same time, each transmitting circuit which transmits the balanced signal is constituted so as to release the output when the data is not transferred and when the power supply voltage is applied and cut off. For instance, the transmitting circuits 1-4 are connected to the branching devices 13-15 via the corresponding AC supply circuits 5-8 and branch transmission lines 9-12; and at the same time the termination resistances 16-19 are added to the output of the circuits 1-4. Then the devices 13-15 are connected via a main transmission lines 20- 21, and the other end of the branching device 15 is connected successively to a main transmission line 22, an AC coupling circuit 23 and a receiving circuit 24 in that order. At the same time, a termination resistance 25 is added to the input of the circuit 24.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56005949A JPS57120147A (en) | 1981-01-20 | 1981-01-20 | Signal transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56005949A JPS57120147A (en) | 1981-01-20 | 1981-01-20 | Signal transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57120147A true JPS57120147A (en) | 1982-07-27 |
Family
ID=11625139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56005949A Pending JPS57120147A (en) | 1981-01-20 | 1981-01-20 | Signal transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57120147A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6172517B1 (en) | 1993-12-28 | 2001-01-09 | Hitachi, Ltd. | Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission |
-
1981
- 1981-01-20 JP JP56005949A patent/JPS57120147A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6172517B1 (en) | 1993-12-28 | 2001-01-09 | Hitachi, Ltd. | Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission |
US6420900B2 (en) | 1993-12-28 | 2002-07-16 | Hitachi, Ltd. | Semiconductor memory |
US6441639B1 (en) | 1993-12-28 | 2002-08-27 | Hitachi, Ltd | Circuit module connected to a transmission line including arrangement to suppress reflections at a branch point of the transmission line |
US6873179B2 (en) | 1993-12-28 | 2005-03-29 | Hitachi, Ltd. | Signal transmitting device suited to fast signal transmission |
US7015717B2 (en) | 1993-12-28 | 2006-03-21 | Hitachi, Ltd. | Signal transmitting device suited to fast signal transmission |
US7123048B2 (en) | 1993-12-28 | 2006-10-17 | Hitachi, Ltd. | Signal transmitting device suited to fast signal transmission |
US7295034B2 (en) | 1993-12-28 | 2007-11-13 | Hitachi, Ltd. | Signal transmitting device suited to fast signal transmission |
US7372292B2 (en) | 1993-12-28 | 2008-05-13 | Hitachi, Ltd. | Signal transmitting device suited to fast signal transmission |
US7911224B2 (en) | 1993-12-28 | 2011-03-22 | Hitachi, Ltd. | Signal transmitting device suited to fast signal transmission |
US8106677B2 (en) | 1993-12-28 | 2012-01-31 | Lg Electronics Inc. | Signal transmitting device suited to fast signal transmission |
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