GB2292292A - Method and device for transmitting an asynchronous signal to a synchronous system - Google Patents

Method and device for transmitting an asynchronous signal to a synchronous system

Info

Publication number
GB2292292A
GB2292292A GB9519626A GB9519626A GB2292292A GB 2292292 A GB2292292 A GB 2292292A GB 9519626 A GB9519626 A GB 9519626A GB 9519626 A GB9519626 A GB 9519626A GB 2292292 A GB2292292 A GB 2292292A
Authority
GB
United Kingdom
Prior art keywords
signal
transmitting
synchronous system
register
asynchronous
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
Application number
GB9519626A
Other versions
GB9519626D0 (en
GB2292292B (en
Inventor
Matti Kaasinen
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.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of GB9519626D0 publication Critical patent/GB9519626D0/en
Publication of GB2292292A publication Critical patent/GB2292292A/en
Application granted granted Critical
Publication of GB2292292B publication Critical patent/GB2292292B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/05—Electric or magnetic storage of signals before transmitting or retransmitting for changing the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/24—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Dc Digital Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a method and a device for transmitting an asynchronous signal (Da) to a synchronous system (SS). In the method, matching of speeds is performed between the inbound signal (Da) and an outbound signal (Ds). In order that the practical implementation would be as simple as possible, the matching of speeds is performed by a register (15) one bit in length such that as a general rule writing into and reading from the register take place alternately while a register overflow or underflow is effected at a signal stop or start bit (B or E) by changing the reading and writing order. The invention also relates to a method and a device for transmitting a signal transmitted to a synchronous system back to an asynchronous device. <IMAGE>
GB9519626A 1993-03-31 1994-03-30 Method and device for transmitting an asynchronous signal to a synchronous system Expired - Fee Related GB2292292B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI931454A FI93290C (en) 1993-03-31 1993-03-31 Method and apparatus for transmitting an asynchronous signal to a synchronous system
PCT/FI1994/000121 WO1994023518A1 (en) 1993-03-31 1994-03-30 Method and device for transmitting an asynchronous signal to a synchronous system

Publications (3)

Publication Number Publication Date
GB9519626D0 GB9519626D0 (en) 1995-11-29
GB2292292A true GB2292292A (en) 1996-02-14
GB2292292B GB2292292B (en) 1996-09-25

Family

ID=8537662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9519626A Expired - Fee Related GB2292292B (en) 1993-03-31 1994-03-30 Method and device for transmitting an asynchronous signal to a synchronous system

Country Status (4)

Country Link
DE (1) DE4491905T1 (en)
FI (1) FI93290C (en)
GB (1) GB2292292B (en)
WO (1) WO1994023518A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321351A (en) * 1997-01-17 1998-07-22 Paul Flood Data transfer across clock domains
US6151323A (en) * 1997-01-17 2000-11-21 3Com Technologies Method of supporting unknown addresses in an interface for data transmission in an asynchronous transfer mode
US6163541A (en) * 1997-01-17 2000-12-19 3Com Technologies Method for selecting virtual channels based on address priority in an asynchronous transfer mode device
US6208662B1 (en) 1997-01-17 2001-03-27 3Com Technologies Method for distributing and recovering buffer memories in an asynchronous transfer mode edge device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048440A (en) * 1976-11-08 1977-09-13 Bell Telephone Laboratories, Incorporated Asynchronous-to-synchronous data concentration system
US4263673A (en) * 1979-02-08 1981-04-21 Racal-Vadic, Inc. Receive buffer for converting synchronous-to-asynchronous data
EP0461703A2 (en) * 1990-06-09 1991-12-18 Philips Patentverwaltung GmbH Circuit for bit-rate adaption

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048440A (en) * 1976-11-08 1977-09-13 Bell Telephone Laboratories, Incorporated Asynchronous-to-synchronous data concentration system
US4263673A (en) * 1979-02-08 1981-04-21 Racal-Vadic, Inc. Receive buffer for converting synchronous-to-asynchronous data
EP0461703A2 (en) * 1990-06-09 1991-12-18 Philips Patentverwaltung GmbH Circuit for bit-rate adaption

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321351A (en) * 1997-01-17 1998-07-22 Paul Flood Data transfer across clock domains
GB2321351B (en) * 1997-01-17 1999-03-10 Paul Flood System and method for data transfer across multiple clock domains
US6151323A (en) * 1997-01-17 2000-11-21 3Com Technologies Method of supporting unknown addresses in an interface for data transmission in an asynchronous transfer mode
US6163541A (en) * 1997-01-17 2000-12-19 3Com Technologies Method for selecting virtual channels based on address priority in an asynchronous transfer mode device
US6208662B1 (en) 1997-01-17 2001-03-27 3Com Technologies Method for distributing and recovering buffer memories in an asynchronous transfer mode edge device

Also Published As

Publication number Publication date
WO1994023518A1 (en) 1994-10-13
FI93290C (en) 1995-03-10
GB9519626D0 (en) 1995-11-29
DE4491905T1 (en) 1997-07-31
AU6378194A (en) 1994-10-24
FI931454A (en) 1994-10-01
FI93290B (en) 1994-11-30
AU676290B2 (en) 1997-03-06
FI931454A0 (en) 1993-03-31
GB2292292B (en) 1996-09-25

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040330

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040330