BR7702901A - Sistema para extracao de informacao de marcacao de tempo de uma onda portadora modulada - Google Patents
Sistema para extracao de informacao de marcacao de tempo de uma onda portadora moduladaInfo
- Publication number
- BR7702901A BR7702901A BR7702901A BR7702901A BR7702901A BR 7702901 A BR7702901 A BR 7702901A BR 7702901 A BR7702901 A BR 7702901A BR 7702901 A BR7702901 A BR 7702901A BR 7702901 A BR7702901 A BR 7702901A
- Authority
- BR
- Brazil
- Prior art keywords
- extraction
- carrier wave
- timing information
- modulated carrier
- modulated
- Prior art date
Links
- 238000000605 extraction Methods 0.000 title 1
Classifications
-
- 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
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
- E21B47/20—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0079—Receiver details
- H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Geophysics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Communication Control (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68460476A | 1976-05-10 | 1976-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7702901A true BR7702901A (pt) | 1978-05-16 |
Family
ID=24748755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7702901A BR7702901A (pt) | 1976-05-10 | 1977-05-05 | Sistema para extracao de informacao de marcacao de tempo de uma onda portadora modulada |
Country Status (15)
Country | Link |
---|---|
AR (1) | AR222004A1 (es) |
AU (1) | AU513642B2 (es) |
BR (1) | BR7702901A (es) |
CA (1) | CA1119686A (es) |
DE (1) | DE2721023A1 (es) |
EG (1) | EG13329A (es) |
ES (1) | ES458606A1 (es) |
FR (1) | FR2351549A1 (es) |
GB (1) | GB1579488A (es) |
GR (1) | GR63199B (es) |
IE (1) | IE45139B1 (es) |
IT (1) | IT1101653B (es) |
NL (1) | NL7705119A (es) |
NO (1) | NO771514L (es) |
OA (1) | OA05657A (es) |
-
1977
- 1977-04-28 IE IE860/77A patent/IE45139B1/en unknown
- 1977-04-29 NO NO771514A patent/NO771514L/no unknown
- 1977-05-04 AU AU24860/77A patent/AU513642B2/en not_active Expired
- 1977-05-04 FR FR7713487A patent/FR2351549A1/fr active Granted
- 1977-05-05 BR BR7702901A patent/BR7702901A/pt unknown
- 1977-05-06 IT IT23295/77A patent/IT1101653B/it active
- 1977-05-07 EG EG267/77A patent/EG13329A/xx active
- 1977-05-09 GB GB19325/77A patent/GB1579488A/en not_active Expired
- 1977-05-09 CA CA000277997A patent/CA1119686A/en not_active Expired
- 1977-05-09 ES ES458606A patent/ES458606A1/es not_active Expired
- 1977-05-09 AR AR267532A patent/AR222004A1/es active
- 1977-05-10 OA OA56165A patent/OA05657A/xx unknown
- 1977-05-10 DE DE19772721023 patent/DE2721023A1/de not_active Withdrawn
- 1977-05-10 GR GR53425A patent/GR63199B/el unknown
- 1977-05-10 NL NL7705119A patent/NL7705119A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ES458606A1 (es) | 1978-08-01 |
IT1101653B (it) | 1985-10-07 |
AU513642B2 (en) | 1980-12-11 |
IE45139L (en) | 1977-11-10 |
EG13329A (en) | 1981-06-30 |
NL7705119A (nl) | 1977-11-14 |
DE2721023A1 (de) | 1977-12-01 |
NO771514L (no) | 1977-11-08 |
GR63199B (en) | 1979-10-04 |
IE45139B1 (en) | 1982-06-30 |
AR222004A1 (es) | 1981-04-15 |
GB1579488A (en) | 1980-11-19 |
FR2351549B1 (es) | 1980-02-15 |
AU2486077A (en) | 1978-11-09 |
CA1119686A (en) | 1982-03-09 |
OA05657A (fr) | 1981-04-30 |
FR2351549A1 (fr) | 1977-12-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR7805864A (pt) | Sistema para transmitir sinais de dados binarios | |
ATA126377A (de) | System zur wiedergabe von impulsdaten | |
BR7608253A (pt) | Aparelho para conjunto de trilhos de forca e sinalizacao para um sistema de transporte | |
FR2322380A1 (fr) | Pistage de signaux radar | |
BR7806712A (pt) | Sistema de gravacao magnetica | |
MX4549E (es) | Mejoras a sistema impulsor para disco de almacenamiento magnetico de datos | |
IT1102366B (it) | Sistema amplificatore a portante modulata | |
BR7605420A (pt) | Circuito de recuperacao de cronometragem para dados digitais | |
IT1075058B (it) | Sistema per il reperimento di dati,insensibile a deviazioni di frequenza | |
IT1102882B (it) | Dispositivo per inserire strisce di etichette | |
IT1088831B (it) | Dispositivo per la sincronizzazione di trama di un sistema multiplex a divisione di tempo | |
BR7805530A (pt) | Sistema de telecomunicacoes por divisao de tempo | |
IT1067846B (it) | Sistema di modulazione a risposta parziale | |
DK432876A (da) | Anordning til synkronisering af en informationsleser med en informationsberers hastighed | |
IT1061950B (it) | Sistema di registrazione nel tempo per telecamere | |
BR7701950A (pt) | Circuito para a deteccao de sinais de interferencia | |
IT977020B (it) | Circuito generatore di segnali a rampa particolarmente idoneo per pilotare i sistemi di trascina mento di nastri magnetici | |
NO147321C (no) | Frekvensmodulert pulsradaranlegg. | |
AT346395B (de) | Einrichtung fuer ein system zur verschluesselten uebertragung von informationen | |
AR222496A1 (es) | Aparato lector de un portador de grabacion discoidal | |
NL7713866A (nl) | Inrichting voor eliminatie van tijdbasisfouten uit een draaggolfgemoduleerd informatiesignaal. | |
BR7702901A (pt) | Sistema para extracao de informacao de marcacao de tempo de uma onda portadora modulada | |
IT1100585B (it) | Apparato per riprendere i segnali preregistrati da un disco | |
BR7607162A (pt) | Circuito para a transformacao de um sinal de dados por pusos em um sinal de dados por amplitude | |
DK496776A (da) | Informationsberer |