[go: up one dir, main page]

ES428643A1 - Asynchronous digital multiplexer - Google Patents

Asynchronous digital multiplexer

Info

Publication number
ES428643A1
ES428643A1 ES428643A ES428643A ES428643A1 ES 428643 A1 ES428643 A1 ES 428643A1 ES 428643 A ES428643 A ES 428643A ES 428643 A ES428643 A ES 428643A ES 428643 A1 ES428643 A1 ES 428643A1
Authority
ES
Spain
Prior art keywords
clock signals
write
read
asynchronous digital
data
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
ES428643A
Other languages
Spanish (es)
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 Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES428643A1 publication Critical patent/ES428643A1/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/07Synchronising arrangements using pulse stuffing for systems with different or fluctuating information rates or bit rates
    • H04J3/073Bit stuffing, e.g. PDH

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Enhancements to asynchronous digital multiplexers characterized by an asynchronous digital multiplexer including a digital data store, means for deriving "write" clock signals from asynchronous digital data input, means for writing bits of data to the store. asynchronous digital data under the control of "write" clock signals, means for generating synchronous "read" clock signals the frequency of which is at all times higher than that of "write" clock signals, means for reading from the store the data bits stored therein under the control of the "read" clock signals, means for comparing the phase of the used "read" and "write" clock signals in the write and read operations and a means responsive to an output of the phase comparison means to cause an additional bit of non-data to be inserted into the stream of data bits I read two in the warehouse. (Machine-translation by Google Translate, not legally binding)
ES428643A 1973-07-26 1974-07-26 Asynchronous digital multiplexer Expired ES428643A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3560673A GB1427084A (en) 1973-07-26 1973-07-26 Asynchronous digital multiplexer

Publications (1)

Publication Number Publication Date
ES428643A1 true ES428643A1 (en) 1977-01-01

Family

ID=10379591

Family Applications (1)

Application Number Title Priority Date Filing Date
ES428643A Expired ES428643A1 (en) 1973-07-26 1974-07-26 Asynchronous digital multiplexer

Country Status (4)

Country Link
DE (1) DE2434869A1 (en)
ES (1) ES428643A1 (en)
FR (1) FR2246129B1 (en)
GB (1) GB1427084A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923660B2 (en) * 1979-02-19 1984-06-04 株式会社日立製作所 Digital signal transmission method
DE2922338C2 (en) * 1979-06-01 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Line termination device for broadband transmission links
FR2594277B1 (en) * 1986-02-13 1993-04-23 Houdoin Thierry DOUBLE LOOP PACKET SYNCHRONIZATION WITH PHASE LOCK
CN114489233B (en) * 2022-01-24 2024-06-11 上海华力集成电路制造有限公司 Phase-adjustable arbitrary waveform generator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE349716B (en) * 1971-02-05 1972-10-02 Ericsson Telefon Ab L M

Also Published As

Publication number Publication date
DE2434869A1 (en) 1975-07-03
FR2246129A1 (en) 1975-04-25
GB1427084A (en) 1976-03-03
FR2246129B1 (en) 1978-01-20

Similar Documents

Publication Publication Date Title
GB1469731A (en) Computer peripheral control
ES443849A1 (en) Time base corrector
GB1079074A (en) Data handling system
BG33890A3 (en) Apparatus for correction the phase of digital signals for recording and reading
GB1022316A (en) Buffer
ES428643A1 (en) Asynchronous digital multiplexer
KR880002178A (en) Rotating head type recording and reproducing apparatus
GB951040A (en) Improvements in or relating to format control for data recording
GB1301566A (en)
GB985002A (en) Recording system
JPS55134442A (en) Data transfer unit
GB1536628A (en) Data encoding apparatus
AU4303789A (en) Method and apparatus for detecting impending overflow and/or underrun of elasticity buffer
JPS5443630A (en) Memory access control system
ES444381A1 (en) Transmit and receive digital data channel elastic store
JPS5745658A (en) Data storage system
JPS5497404A (en) Buffer memory device
JPS5512571A (en) Control system for memory element
GB1031829A (en) Error detection and correction circuits
JPS55122216A (en) Magnetic card read/write control unit
JPS5712498A (en) Integrated circuit device for memory
JPS54123841A (en) Semiconductor integrated memory element
GB1486311A (en) High speed digital information storage
JPS5661012A (en) Recording and reproducing system for digital data
JPS54126006A (en) Information service device