CA1186753A - Activity detector usable with a serial data link - Google Patents

Activity detector usable with a serial data link

Info

Publication number
CA1186753A
CA1186753A CA000420141A CA420141A CA1186753A CA 1186753 A CA1186753 A CA 1186753A CA 000420141 A CA000420141 A CA 000420141A CA 420141 A CA420141 A CA 420141A CA 1186753 A CA1186753 A CA 1186753A
Authority
CA
Canada
Prior art keywords
signal
data
input
clock
transitions
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.)
Expired
Application number
CA000420141A
Other languages
English (en)
French (fr)
Inventor
Jack R. Duke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR Voyix Corp
Original Assignee
NCR Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of CA1186753A publication Critical patent/CA1186753A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
    • G06F12/0646—Configuration or reconfiguration
    • G06F12/0684—Configuration or reconfiguration with feedback, e.g. presence or absence of unit detected by addressing, overflow detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Debugging And Monitoring (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)
  • Information Transfer Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Logic Circuits (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
CA000420141A 1982-01-28 1983-01-25 Activity detector usable with a serial data link Expired CA1186753A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/343,140 US4486855A (en) 1982-01-28 1982-01-28 Activity detector usable with a serial data link
US343,140 1982-01-28

Publications (1)

Publication Number Publication Date
CA1186753A true CA1186753A (en) 1985-05-07

Family

ID=23344868

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000420141A Expired CA1186753A (en) 1982-01-28 1983-01-25 Activity detector usable with a serial data link

Country Status (6)

Country Link
US (1) US4486855A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0099407B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS59500069A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1186753A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3363120D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1983002674A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277661A (ja) * 1985-09-30 1987-04-09 Toshiba Corp メモリ有無検出回路
EP0317828A3 (en) * 1987-11-23 1990-10-31 Siemens Aktiengesellschaft Serial bus in a computer system for internal system communications
FR2647989B1 (fr) * 1989-05-31 1991-08-23 Cit Alcatel Dispositif de detection de perte de signal de reception pour recepteur de signaux numeriques
US5235603A (en) * 1990-11-26 1993-08-10 Siemens Aktiengesellschaft System for determining loss of activity on a plurality of data lines
US6701398B1 (en) 1999-04-07 2004-03-02 Cradle Technologies, Inc. Global bus synchronous transaction acknowledge with nonresponse detection
EP1257917A4 (en) * 1999-04-07 2004-11-10 Cradle Technologies GLOBAL BUS-SYNCHRONOUS CONFIRMATION OF A TRANSACTION WITH DETECTION OF THE ERROR OF A REPLY
JP4420009B2 (ja) * 2006-11-02 2010-02-24 セイコーエプソン株式会社 非同期シリアル通信方法及び非同期シリアル通信装置
US9811660B2 (en) 2014-06-16 2017-11-07 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Securing a shared serial bus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341824A (en) * 1965-04-05 1967-09-12 Ibm Unit unavailability detector for a data processing system
US3810120A (en) * 1971-02-12 1974-05-07 Honeywell Inf Systems Automatic deactivation device
US4418409A (en) * 1980-03-07 1983-11-29 Ibm Corporation Byte data activity compression
US4409656A (en) * 1980-03-13 1983-10-11 Her Majesty The Queen, In Right Of Canada As Represented By The Minister Of National Defense Serial data bus communication system
US4380052A (en) * 1980-09-15 1983-04-12 Burroughs Corporation Single transmission bus data network employing a daisy-chained bus data assignment control line which can bypass non-operating stations
US4379340A (en) * 1980-10-06 1983-04-05 Honeywell Information Systems Inc. Communications subsystem idle link state detector
US4374436A (en) * 1980-10-17 1983-02-15 Paradyne Corporation System for the monitoring and restoration of series terminals in a looped communication system
US4340965A (en) * 1980-10-22 1982-07-20 Owens-Corning Fiberglas Corporation Method of and apparatus for detecting and circumventing malfunctions in a current-loop communications system
US4410985A (en) * 1981-03-25 1983-10-18 Hitachi, Ltd. Data transmission system and method

Also Published As

Publication number Publication date
EP0099407B1 (en) 1986-04-23
WO1983002674A1 (en) 1983-08-04
JPH0412493B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-03-04
JPS59500069A (ja) 1984-01-12
DE3363120D1 (en) 1986-05-28
EP0099407A1 (en) 1984-02-01
US4486855A (en) 1984-12-04
DE99407T1 (de) 1984-05-10

Similar Documents

Publication Publication Date Title
US4554659A (en) Data communication network
US5167020A (en) Serial data transmitter with dual buffers operating separately and having scan and self test modes
US4710927A (en) Diagnostic circuit
CA1186753A (en) Activity detector usable with a serial data link
US3863226A (en) Configurable communications controller having shared logic for providing predetermined operations
US5218682A (en) Two-way handshake circuit and method for communication between processors
US4985890A (en) Data transmission unit
KR950015189B1 (ko) 광폭의 선입선출버퍼(fifo)의 에러검출장치
US5402430A (en) Parity inversion test system
US4286319A (en) Expandable inter-computer communication system
JPH1165618A (ja) ベースボード及びそれに装着される電源ユニット並びにｃｐｕユニット
US4977559A (en) Improper bit combination detection circuit
CA1187619A (en) Circuit for reliable data transfer between two central processing units
KR940003804B1 (ko) 잡음신호 제거회로
JPS62109150A (ja) バス制御回路
JPS60222766A (ja) トランスデユ−サ識別回路
JPS617968A (ja) プログラム可能なステータス・レジスタ装置
EP0497504A2 (en) Attachment identifier for information processing system
GB977317A (en) Data processing system
EP0420409A2 (en) Interface circuit
KR100258866B1 (ko) 피씨아이 버스의 브릿지회로
KR920000701Y1 (ko) 자기고장 진단기능을 구비한 인터페이스장치
RU1805470C (ru) Выходной блок тестера дл контрол цифровых блоков
Bennett et al. A simple access logic for the Cambridge Ring
CA1211851A (en) High speed data bus structure and system

Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry