ES488946A0 - IMPROVEMENTS IN CONVERSION CIRCUITS TO INTERFACE DIGITAL SIGNALS AND MODULATION OF PULSE AMPLITUDE (PAM) AND TO SELECTLY MODIFY THE DIGITAL SIGNAL - Google Patents

IMPROVEMENTS IN CONVERSION CIRCUITS TO INTERFACE DIGITAL SIGNALS AND MODULATION OF PULSE AMPLITUDE (PAM) AND TO SELECTLY MODIFY THE DIGITAL SIGNAL

Info

Publication number
ES488946A0
ES488946A0 ES488946A ES488946A ES488946A0 ES 488946 A0 ES488946 A0 ES 488946A0 ES 488946 A ES488946 A ES 488946A ES 488946 A ES488946 A ES 488946A ES 488946 A0 ES488946 A0 ES 488946A0
Authority
ES
Spain
Prior art keywords
selectly
pam
modify
modulation
pulse amplitude
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
ES488946A
Other languages
Spanish (es)
Other versions
ES8104683A1 (en
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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.)
Filing date
Publication date
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of ES8104683A1 publication Critical patent/ES8104683A1/en
Publication of ES488946A0 publication Critical patent/ES488946A0/en
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/129—Means for adapting the input signal to the range the converter can handle, e.g. limiting, pre-scaling ; Out-of-range indication
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K11/00—Transforming types of modulations, e.g. position-modulated pulses into duration-modulated pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/34—Analogue value compared with reference values
    • H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
    • H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Analogue/Digital Conversion (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
ES488946A 1979-02-27 1980-02-26 IMPROVEMENTS IN CONVERSION CIRCUITS TO INTERFACE DIGITAL SIGNALS AND MODULATION OF PULSE AMPLITUDE (PAM) AND TO SELECTLY MODIFY THE DIGITAL SIGNAL Granted ES488946A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000322373A CA1152650A (en) 1979-02-27 1979-02-27 Pcm and pam conversion circuit including signal level variation on the pcm portion of the circuit

Publications (2)

Publication Number Publication Date
ES8104683A1 ES8104683A1 (en) 1981-04-16
ES488946A0 true ES488946A0 (en) 1981-04-16

Family

ID=4113638

Family Applications (1)

Application Number Title Priority Date Filing Date
ES488946A Granted ES488946A0 (en) 1979-02-27 1980-02-26 IMPROVEMENTS IN CONVERSION CIRCUITS TO INTERFACE DIGITAL SIGNALS AND MODULATION OF PULSE AMPLITUDE (PAM) AND TO SELECTLY MODIFY THE DIGITAL SIGNAL

Country Status (8)

Country Link
JP (1) JPS55120295A (en)
AT (1) AT390703B (en)
CA (1) CA1152650A (en)
DE (1) DE3007211A1 (en)
ES (1) ES488946A0 (en)
FR (1) FR2450533A1 (en)
GB (1) GB2050112B (en)
SE (1) SE439713B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396938A (en) * 1981-07-23 1983-08-02 Rca Corporation Controlled ram signal processor
JPH0396189A (en) * 1989-09-08 1991-04-22 Nitsuko Corp Digital exchange

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333299C3 (en) * 1973-06-29 1979-04-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for converting analog signals into PCM signals and from PCM signals into analog signals
IT998230B (en) * 1973-07-12 1976-01-20 Sits Soc It Telecom Siemens CODECODER FOR TIME DIVISION TELEPHONE SYSTEMS
US3877028A (en) * 1974-02-22 1975-04-08 Gte Automatic Electric Lab Inc Pcm encoder-decoder apparatus
IT1021020B (en) * 1974-05-27 1978-01-30 Telettra Lab Telefon COMMUNICATION SYSTEM AND DEVICES WITH CODED SIGNALS P.C.M. WITH REDUCED REDUNDANCY
JPS53147408A (en) * 1977-05-27 1978-12-22 Fujitsu Ltd Gain control system with variable time slot
JPS549511A (en) * 1977-06-24 1979-01-24 Fujitsu Ltd Digital gain control system using read only memory

Also Published As

Publication number Publication date
AT390703B (en) 1990-06-25
FR2450533A1 (en) 1980-09-26
JPS55120295A (en) 1980-09-16
DE3007211A1 (en) 1980-09-04
ES8104683A1 (en) 1981-04-16
GB2050112B (en) 1983-05-25
SE8001498L (en) 1980-08-28
CA1152650A (en) 1983-08-23
SE439713B (en) 1985-06-24
FR2450533B1 (en) 1984-04-06
GB2050112A (en) 1980-12-31
ATA108180A (en) 1989-11-15

Similar Documents

Publication Publication Date Title
IT1086562B (en) PROCEDURE AND APPARATUS TO RECORD AND REPRODUCE PULSE SIGNALS
CA979077A (en) Signal mode converter and processor
MX143953A (en) IMPROVEMENTS IN GENERATOR OF DIRECTION AND INTERRUPTION SIGNALS
MX146077A (en) IMPROVEMENTS IN PROCEDURE TO CONVERT A VIDEO SIGNAL INTO A TWO-LEVEL SIGNAL
IT1028058B (en) COMPLEX TO PRODUCE SIMULTANEOUSLY SIGNALS WITH A INCREASING FREQUENCY AND SIGNALS WITH A DECREASING FREQUENCY
NZ183543A (en) Analogue to digital converter pulse density modulated output
GB1554621A (en) Digital clamping of binary coded periodic signals
GB1539212A (en) Digital to analogue and analogue to digital conversion of signals
ES488946A0 (en) IMPROVEMENTS IN CONVERSION CIRCUITS TO INTERFACE DIGITAL SIGNALS AND MODULATION OF PULSE AMPLITUDE (PAM) AND TO SELECTLY MODIFY THE DIGITAL SIGNAL
IT8421964A0 (en) DEMODULATION OF FREQUENCY MODULATED SIGNAL USING DIGITAL DELAY AND AUTOCORRELATION.
BE821232A (en) METHOD OF REALIZING AN ABSORBENT AND WASHABLE ALAISE AND RESULTING ARTICLE
IT1072795B (en) CIRCUITABLE ARRANGEMENT TO CONVERT DIGITAL SIGNALS INTO ANALOG SIGNALS AND TO CONVERT ANALOGUE SIGNALS INTO DIGITAL SIGNALS
ES529629A0 (en) A REGISTRATION SUPPORT AND A DEVICE TO PRODUCE A REGISTRATION SIGNAL OF THE SAME.
BR7905685A (en) CODING PROCESS IN THE DIGITAL FORM OF MODULATED WIDTH PULSES AND ANALOG TO DIGITAL CONVERTER
IT7825757A0 (en) CIRCUIT ARRANGEMENT FOR CONVERTING ANALOG SIGNALS TO DIGITAL SIGNALS AND FOR CONVERTING DIGITAL SIGNALS TO ANALOG SIGNALS.
GB1551079A (en) Digital to analogue and analogue to digital conversion of signals
JPS5422152A (en) Circuit for converting analog signal to digital signal and vice versa
BR7908421A (en) LOGARITHMIC CONVERTER OF ANALOG SIGN IN DIGITAL
JPS5385139A (en) Acousticcelectric surface wave signal converter
DE59010783D1 (en) Frequency to digital converter
GB1541656A (en) Frequency to digital converter
FR2337972A1 (en) CONVERTER OF THREE-WIRE SYNCHROMACHINE SIGNALS TO THREE-WIRE DIGITAL SIGNALS
YU36843B (en) Circuit for the demodulation and regeneration of digital signals
IT1032741B (en) IMPROVEMENT IN THE CONVERSION OF ANALOG SIGNALS IN NUMERICAL AND VICEVERSA SIGNALS
BE858181A (en) SIGNAL GENERATOR AND SIGNAL CONVERTER IN WHICH THIS SIGNAL GENERATOR IS USED