IT8149913A0 - Sistema di comunicazione munito dimezzi per evitare conflitti di accesso su organi comuni - Google Patents
Sistema di comunicazione munito dimezzi per evitare conflitti di accesso su organi comuniInfo
- Publication number
- IT8149913A0 IT8149913A0 IT8149913A IT4991381A IT8149913A0 IT 8149913 A0 IT8149913 A0 IT 8149913A0 IT 8149913 A IT8149913 A IT 8149913A IT 4991381 A IT4991381 A IT 4991381A IT 8149913 A0 IT8149913 A0 IT 8149913A0
- Authority
- IT
- Italy
- Prior art keywords
- communication system
- system equipped
- access conflicts
- avoid access
- half measures
- Prior art date
Links
- 210000000056 organ Anatomy 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/219,150 US4345250A (en) | 1980-12-22 | 1980-12-22 | Information communication system with collision avoidance |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8149913A0 true IT8149913A0 (it) | 1981-12-15 |
IT1144540B IT1144540B (it) | 1986-10-29 |
Family
ID=22818089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49913/81A IT1144540B (it) | 1980-12-22 | 1981-12-15 | Sistema di comunicazione munito di mezzi per evitare conflitti di accesso su organi comuni |
Country Status (6)
Country | Link |
---|---|
US (1) | US4345250A (it) |
JP (1) | JPS57129557A (it) |
AU (1) | AU544265B2 (it) |
FI (1) | FI73852C (it) |
GB (1) | GB2090107A (it) |
IT (1) | IT1144540B (it) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4376278A (en) * | 1980-12-22 | 1983-03-08 | Honeywell Information Systems Inc. | Apparatus and method for collision avoidance |
US4432088A (en) * | 1981-04-30 | 1984-02-14 | The United States Of America As Represented By The United States Department Of Energy | Carrier sense data highway system |
DE3224425A1 (de) * | 1982-06-30 | 1984-01-05 | Siemens AG, 1000 Berlin und 8000 München | Bussystem mit lichtwellenleitern |
JPS5923654A (ja) * | 1982-07-29 | 1984-02-07 | Sharp Corp | デ−タ伝送装置 |
GB2125257B (en) * | 1982-08-04 | 1986-03-26 | Plessey Co Plc | Improved local area network systems |
CA1225121A (en) * | 1982-11-05 | 1987-08-04 | Motomu Mochizuki | Optical network system of bus architecture capable of rapidly detecting collision at each communication station |
JPS59115645A (ja) * | 1982-12-22 | 1984-07-04 | Toshiba Corp | 情報伝送方式 |
US4550400A (en) * | 1983-07-07 | 1985-10-29 | Motorola, Inc. | Remote digital volume control system |
WO1987006071A1 (en) * | 1986-03-31 | 1987-10-08 | Consultant's Choice Inc. | System and method for transporting data |
US4580276A (en) * | 1983-08-05 | 1986-04-01 | Consultant's Choice Inc. | System and method for transporting data |
US4575847A (en) * | 1983-09-26 | 1986-03-11 | International Business Machines Corp. | Hot carrier detection |
US4560984A (en) * | 1984-02-15 | 1985-12-24 | Codenoll Technology Corporation | Method and apparatus for detecting the collision of data packets |
US4637035A (en) * | 1984-02-16 | 1987-01-13 | Paradyne Corporation | Digital modem for multiple telephone circuits |
US4875158A (en) * | 1985-08-14 | 1989-10-17 | Apple Computer, Inc. | Method for requesting service by a device which generates a service request signal successively until it is serviced |
US4918598A (en) * | 1985-08-14 | 1990-04-17 | Apple Computer, Inc. | Method for selectively activating and deactivating devices having same first address and different extended addresses |
US4912627A (en) * | 1985-08-14 | 1990-03-27 | Apple Computer, Inc. | Method for storing a second number as a command address of a first peripheral device and a third number as a command address of a second peripheral device |
US4910655A (en) * | 1985-08-14 | 1990-03-20 | Apple Computer, Inc. | Apparatus for transferring signals and data under the control of a host computer |
US4755990A (en) * | 1987-10-08 | 1988-07-05 | Karl Suss America, Inc. | Collision avoidance in a multinode data communication network |
US4807223A (en) * | 1987-10-08 | 1989-02-21 | Critikon, Inc. | Communications protocol for distributed station network |
US4888763A (en) * | 1988-03-11 | 1989-12-19 | Codenoll Technology Corporation | Method and apparatus for detecting the collision of data packets utilizing a preassigned transceiver code in the preamble |
US4939510A (en) * | 1988-08-22 | 1990-07-03 | E-Systems, Inc. | Broadband communications RF packet collision detection |
FR2638923B1 (fr) * | 1988-11-08 | 1990-12-21 | Bull Sa | Unite d'acces a un support de transmission d'un reseau local |
AU1569392A (en) * | 1991-02-07 | 1992-09-07 | Data Card Corporation | Network interface circuit apparatus and method |
CN1074543A (zh) * | 1991-11-13 | 1993-07-21 | 陈振文 | 单片微机固件处理方式与硬件装置 |
US5572511A (en) * | 1995-01-27 | 1996-11-05 | Tamarack Microelectronics, Inc. | Auto-adjustment circuit for collision detection of ethernet |
US20080002735A1 (en) * | 1997-04-01 | 2008-01-03 | Paradox Security Systems Ltd. | Device network |
US6891887B1 (en) | 1998-05-27 | 2005-05-10 | 3Com Corporation | Multi-carrier LAN adapter device using interpolative equalizer |
US6704317B1 (en) | 1998-05-27 | 2004-03-09 | 3Com Corporation | Multi-carrier LAN modem server |
US6507585B1 (en) | 1998-05-27 | 2003-01-14 | 3Com Corporation | Multi-carrier LAN adapter device using frequency domain equalizer |
US6377683B1 (en) | 1998-05-29 | 2002-04-23 | 3Com Corporation | Low complexity frequency domain echo canceller for DMT transceivers |
US6603811B1 (en) | 1998-05-29 | 2003-08-05 | 3Com Corporation | Low complexity frequency domain equalizer having fast re-lock |
US7965734B2 (en) * | 2005-12-15 | 2011-06-21 | Paradox Security Systems Ltd. | Device network interface |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5619144B2 (it) * | 1973-12-04 | 1981-05-06 | ||
US4063220A (en) * | 1975-03-31 | 1977-12-13 | Xerox Corporation | Multipoint data communication system with collision detection |
US4099024A (en) * | 1977-02-16 | 1978-07-04 | Xerox Corporation | Communications network repeater |
JPS53123601A (en) * | 1977-04-04 | 1978-10-28 | Mitsubishi Electric Corp | Data transmission system |
JPS5557840U (it) * | 1978-10-13 | 1980-04-19 | ||
US4271523A (en) * | 1979-06-07 | 1981-06-02 | Ford Motor Company | Contention interference detection in data communication receiver |
-
1980
- 1980-12-22 US US06/219,150 patent/US4345250A/en not_active Expired - Fee Related
-
1981
- 1981-11-18 AU AU77600/81A patent/AU544265B2/en not_active Ceased
- 1981-12-01 FI FI813850A patent/FI73852C/fi not_active IP Right Cessation
- 1981-12-15 IT IT49913/81A patent/IT1144540B/it active
- 1981-12-18 JP JP56203835A patent/JPS57129557A/ja active Granted
- 1981-12-22 GB GB8138620A patent/GB2090107A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2090107A (en) | 1982-06-30 |
AU7760081A (en) | 1982-07-01 |
FI813850L (fi) | 1982-06-23 |
AU544265B2 (en) | 1985-05-23 |
FI73852C (fi) | 1987-11-09 |
FI73852B (fi) | 1987-07-31 |
JPS57129557A (en) | 1982-08-11 |
US4345250A (en) | 1982-08-17 |
IT1144540B (it) | 1986-10-29 |
JPH023578B2 (it) | 1990-01-24 |
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