KR870001713A

KR870001713A - Synchronization Digital Data Communication Network

Info

Publication number: KR870001713A
Application number: KR1019860005479A
Authority: KR
Inventors: 허만 알렉산더; 주니어. 로버트 린 스미스
Original assignee: 존 더블유. 퓨우; 코덱스 코오포레이숀
Priority date: 1985-07-09
Filing date: 1986-07-08
Publication date: 1987-03-17
Also published as: JPS6264145A

Abstract

내용 없음.No content.

Description

Synchronization Digital Data Communication Network

제1도는 통신 회로망에 대한 개략도.1 is a schematic diagram of a communication network.

제2도는 회로망의 한 노우드에 대한 블록선도,2 is a block diagram of a norwood in a network,

제3도는 각각의 노우드의 동작에 대한 타이밍도.3 is a timing diagram for the operation of each norwood.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 통신회로망 12 : 송수신기 노우드10: communication network 12: transceiver Norwood

14 : 안테나 16 : 단말기14 antenna 16 terminal

17 : 제어컴퓨터 18 : 유니버샬 동기 수신기/송신기(USRT)17: control computer 18: universal synchronous receiver / transmitter (USRT)

20 : 시스템 버스 22 : 펄스 발생기20: system bus 22: pulse generator

24 : 제로 비복귀 천이부(NRZI) 30 : RF부24: zero non-return transition unit (NRZI) 30: RF unit

40 : 천이발생기 44 : NRZI천이부40: transition generator 44: NRZI transition part

50 : 금지래치50: prohibition latch

Claims

In a synchronous digital data communications circuitry having a plurality of nodes each having a transmitter and a receiver for connecting to a medium and means for coordinating the transmission of messages initiated simultaneously by the plurality of nodes, the clock for the circuitry. Clock means for determining intervals, encoding means for including digital sequence values in each message and transmitting each sequence to the medium as a ratio of one digital value per clock interval, to clock intervals in the same sequence; Timing means for causing said sequence to be included in a plurality of messages to be initiated simultaneously by a plurality of norms to be transmitted, and said medium of digital value selected during a clock interval in which said nodes transmit different digital values in said message sequence. Monitoring means for detecting the presence of a phase and according to the detection the norwood By synchronizing digital data communication network, it characterized in that it includes the conflict control means for prohibiting the transmission of the message.

2. The apparatus of claim 1, wherein the encoding means encodes the different digital values at an energy free clock interval and encodes the selected digital values at an energy containing clock interval, wherein the monitoring means generates no energy while the nord is transmitting the sequence. And cause a receiver for each of the nords to receive energy on the medium during each clock interval that does not transmit a.

2. The synchronization digital data communications network of claim 1 wherein the messages have a series of digital values transmitted as a ratio of one digital value per clock interval.

2. The synchronous digital data communication network as claimed in claim 1, wherein the sequence is each a unit member to a node for initiating transmission of the message.

5. The synchronous digital data communication network as claimed in claim 4, wherein the sequence comprises a source address of the initiating nord.

2. The synchronization digital data communications network of claim 1 wherein the digital values are binary values.

7. The apparatus of claim 6, wherein said encoding means comprises additional means for converting said binary values into a format in which one binary level is represented by a pulse during said clock interval, said pulse being some portion of said clock interval. A transition of the carrier signal level from low to high and a carrier signal level from high to low, wherein the other binary level is represented by the carrier signal level holding low for the entire clock interval. Synchronization digital data communication network.

4. The apparatus of claim 2, wherein the encoding means sends the pulse as a burst of RF energy and means for disabling the transmitter of the transceiver during the clock intervals when the carrier signal level remains low. Synchronized digital data communication network characterized in that it further comprises.

2. The apparatus of claim 1, wherein said clock means comprises means for transmitting said clock intervals from messages received in said circuitry in said nod except when said nord is attempting to transmit. Synchronized digital data communication network.

2. The synchronization digital data communication network as claimed in claim 1, wherein the sequence of digital values contained in the message indicates a predetermined relative priority of the message.

11. A synchronous digital data communication network as claimed in claim 10, wherein at least a portion of the sequence is a unit member to the norm and indicates a predetermined relative priority of messages sent by the norm.

11. The method of claim 10, wherein the messages are of a plurality of categories with different priorities, and the sequence includes two parts, one part being a unit member to the nord, and the other part to the nord. A synchronous digital data communication network, characterized in that it is not a unit member and indicates a priority category of the message.

13. The method of claim 12, wherein the other second portion comprises a first segment indicating the priority category and a second segment indicating the subpriorities of the messages within at least one of the priority categories. Synchronization digital data communication network.

15. The synchronization digital data communication network of claim 13, wherein the subpriorities are dynamically assigned.

※ Note: The disclosure is based on the initial application.