ES488946A0 - Perfeccionamientos en circuitos de conversion para interfa- sar senales digitales y de modulacion de amplitud de impul- sos (pam) y para modificar de una forma selectiva la senal digital - Google Patents

Perfeccionamientos en circuitos de conversion para interfa- sar senales digitales y de modulacion de amplitud de impul- sos (pam) y para modificar de una forma selectiva la senal digital

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
English (en)
Spanish (es)
Other versions
ES8104683A1 (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.)
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/es
Publication of ES488946A0 publication Critical patent/ES488946A0/es
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 Perfeccionamientos en circuitos de conversion para interfa- sar senales digitales y de modulacion de amplitud de impul- sos (pam) y para modificar de una forma selectiva la senal digital Granted ES488946A0 (es)

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 (es) 1981-04-16
ES488946A0 true ES488946A0 (es) 1981-04-16

Family

ID=4113638

Family Applications (1)

Application Number Title Priority Date Filing Date
ES488946A Granted ES488946A0 (es) 1979-02-27 1980-02-26 Perfeccionamientos en circuitos de conversion para interfa- sar senales digitales y de modulacion de amplitud de impul- sos (pam) y para modificar de una forma selectiva la senal digital

Country Status (8)

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

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 (ja) * 1989-09-08 1991-04-22 Nitsuko Corp デジタル交換機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333299C3 (de) * 1973-06-29 1979-04-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Umsetzung von Analog-Signalen in PCM-Signale und von PCM-Signalen in Analog-Signale
IT998230B (it) * 1973-07-12 1976-01-20 Sits Soc It Telecom Siemens Codecodificatore per sistemi telefonici a divisione di tempo
US3877028A (en) * 1974-02-22 1975-04-08 Gte Automatic Electric Lab Inc Pcm encoder-decoder apparatus
IT1021020B (it) * 1974-05-27 1978-01-30 Telettra Lab Telefon Sistema e dispositivi di comunica zione con segnali codificati p.c.m. a ridondanza ridotta
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
FR2450533A1 (fr) 1980-09-26
DE3007211A1 (de) 1980-09-04
ATA108180A (de) 1989-11-15
GB2050112A (en) 1980-12-31
ES8104683A1 (es) 1981-04-16
SE8001498L (sv) 1980-08-28
FR2450533B1 (enrdf_load_stackoverflow) 1984-04-06
GB2050112B (en) 1983-05-25
AT390703B (de) 1990-06-25
SE439713B (sv) 1985-06-24
JPS55120295A (en) 1980-09-16
CA1152650A (en) 1983-08-23

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