AU2668488A

AU2668488A – A digital phase locked loop
– Google Patents

AU2668488A – A digital phase locked loop
– Google Patents
A digital phase locked loop

Info

Publication number
AU2668488A

AU2668488A
AU26684/88A
AU2668488A
AU2668488A
AU 2668488 A
AU2668488 A
AU 2668488A
AU 26684/88 A
AU26684/88 A
AU 26684/88A
AU 2668488 A
AU2668488 A
AU 2668488A
AU 2668488 A
AU2668488 A
AU 2668488A
Authority
AU
Australia
Prior art keywords
locked loop
phase locked
digital phase
digital
loop
Prior art date
1988-02-26
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
AU26684/88A
Other versions

AU604997B2
(en

Inventor
David Lawrence Archer
Bruce Francis Orr
Colin Rudolph
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 Services Ltd

Original Assignee
Alcatel Australia Ltd
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.)
1988-02-26
Filing date
1988-12-09
Publication date
1989-08-31

1988-12-09
Application filed by Alcatel Australia Ltd
filed
Critical
Alcatel Australia Ltd

1988-12-09
Priority to AU26684/88A
priority
Critical
patent/AU604997B2/en

1989-08-31
Publication of AU2668488A
publication
Critical
patent/AU2668488A/en

1991-01-03
Application granted
granted
Critical

1991-01-03
Publication of AU604997B2
publication
Critical
patent/AU604997B2/en

1991-11-28
Assigned to ALCATEL AUSTRALIA LIMITED
reassignment
ALCATEL AUSTRALIA LIMITED
Request to Amend Deed and Register
Assignors: STANDARD TELEPHONES AND CABLES PTY. LIMITED

2008-12-09
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04J—MULTIPLEX COMMUNICATION

H04J3/00—Time-division multiplex systems

H04J3/02—Details

H04J3/06—Synchronising arrangements

H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers

H04J3/0626—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers plesiochronous multiplexing systems, e.g. plesiochronous digital hierarchy [PDH], jitter attenuators

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

H03L7/00—Automatic control of frequency or phase; Synchronisation

H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop

H03L7/08—Details of the phase-locked loop

H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter

H03L7/0812—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used

H03L7/0814—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used the phase shifting device being digitally controlled

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

H03L7/00—Automatic control of frequency or phase; Synchronisation

H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop

H03L7/08—Details of the phase-locked loop

H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter

H03L7/0812—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used

H03L7/0816—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used the controlled phase shifter and the frequency- or phase-detection arrangement being connected to a common input

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

H03L7/00—Automatic control of frequency or phase; Synchronisation

H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop

H03L7/08—Details of the phase-locked loop

H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop

H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider

H03L7/0992—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider

H03L7/0993—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider and a circuit for adding and deleting pulses

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

H03L7/00—Automatic control of frequency or phase; Synchronisation

H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop

H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop

H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop

AU26684/88A
1988-02-26
1988-12-09
A digital phase locked loop

Ceased

AU604997B2
(en)

Priority Applications (1)

Application Number
Priority Date
Filing Date
Title

AU26684/88A

AU604997B2
(en)

1988-02-26
1988-12-09
A digital phase locked loop

Applications Claiming Priority (3)

Application Number
Priority Date
Filing Date
Title

AUPI699388

1988-02-26

AUPI6993

1988-02-26

AU26684/88A

AU604997B2
(en)

1988-02-26
1988-12-09
A digital phase locked loop

Publications (2)

Publication Number
Publication Date

AU2668488A
true

AU2668488A
(en)

1989-08-31

AU604997B2

AU604997B2
(en)

1991-01-03

Family
ID=25620056
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU26684/88A
Ceased

AU604997B2
(en)

1988-02-26
1988-12-09
A digital phase locked loop

Country Status (1)

Country
Link

AU
(1)

AU604997B2
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU674444B2
(en)

*

1993-10-23
1996-12-19
Alcatel N.V.
Phase detector

Families Citing this family (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE4427972C1
(en)

*

1994-08-08
1995-07-27
Siemens Ag
Clock recovery from serial data stream by integrable phasing circuit

FR2748361B1
(en)

*

1996-05-02
1998-06-05
Alcatel Telspace

DIGITAL PHASE LOCKED LOOP FOR CLOCK RECOVERY

Family Cites Families (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4596937A
(en)

*

1982-04-28
1986-06-24
International Computers Limited
Digital phase-locked loop

US4694327A
(en)

*

1986-03-28
1987-09-15
Rca Corporation
Digital phase locked loop stabilization circuitry using a secondary digital phase locked loop

1988

1988-12-09
AU
AU26684/88A
patent/AU604997B2/en
not_active
Ceased

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU674444B2
(en)

*

1993-10-23
1996-12-19
Alcatel N.V.
Phase detector

Also Published As

Publication number
Publication date

AU604997B2
(en)

1991-01-03

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Legal Events

Date
Code
Title
Description

2002-07-11
MK14
Patent ceased section 143(a) (annual fees not paid) or expired

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