NO771514L - Fremgangsm}te og apparat for utledning av tidsinformasjon fra et b{re-b¦lgesignal - Google Patents

Fremgangsm}te og apparat for utledning av tidsinformasjon fra et b{re-b¦lgesignal

Info

Publication number
NO771514L
NO771514L NO771514A NO771514A NO771514L NO 771514 L NO771514 L NO 771514L NO 771514 A NO771514 A NO 771514A NO 771514 A NO771514 A NO 771514A NO 771514 L NO771514 L NO 771514L
Authority
NO
Norway
Prior art keywords
signal
oscillator
generating
signals
derived
Prior art date
Application number
NO771514A
Other languages
English (en)
Norwegian (no)
Inventor
William N Waggener
Original Assignee
Schlumberger Technology Corp
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 Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Publication of NO771514L publication Critical patent/NO771514L/no

Links

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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Communication Control (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
NO771514A 1976-05-10 1977-04-29 Fremgangsm}te og apparat for utledning av tidsinformasjon fra et b{re-b¦lgesignal NO771514L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68460476A 1976-05-10 1976-05-10

Publications (1)

Publication Number Publication Date
NO771514L true NO771514L (no) 1977-11-08

Family

ID=24748755

Family Applications (1)

Application Number Title Priority Date Filing Date
NO771514A NO771514L (no) 1976-05-10 1977-04-29 Fremgangsm}te og apparat for utledning av tidsinformasjon fra et b{re-b¦lgesignal

Country Status (15)

Country Link
AR (1) AR222004A1 (enExample)
AU (1) AU513642B2 (enExample)
BR (1) BR7702901A (enExample)
CA (1) CA1119686A (enExample)
DE (1) DE2721023A1 (enExample)
EG (1) EG13329A (enExample)
ES (1) ES458606A1 (enExample)
FR (1) FR2351549A1 (enExample)
GB (1) GB1579488A (enExample)
GR (1) GR63199B (enExample)
IE (1) IE45139B1 (enExample)
IT (1) IT1101653B (enExample)
NL (1) NL7705119A (enExample)
NO (1) NO771514L (enExample)
OA (1) OA05657A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12212510B2 (en) * 2020-12-17 2025-01-28 Intel Corporation Closed-loop baud rate carrier and carrier frequency tuning for wireless chip-to-chip interface

Also Published As

Publication number Publication date
FR2351549A1 (fr) 1977-12-09
NL7705119A (nl) 1977-11-14
CA1119686A (en) 1982-03-09
IE45139B1 (en) 1982-06-30
EG13329A (en) 1981-06-30
IT1101653B (it) 1985-10-07
ES458606A1 (es) 1978-08-01
GR63199B (en) 1979-10-04
AU513642B2 (en) 1980-12-11
BR7702901A (pt) 1978-05-16
AU2486077A (en) 1978-11-09
AR222004A1 (es) 1981-04-15
IE45139L (en) 1977-11-10
FR2351549B1 (enExample) 1980-02-15
DE2721023A1 (de) 1977-12-01
GB1579488A (en) 1980-11-19
OA05657A (fr) 1981-04-30

Similar Documents

Publication Publication Date Title
US4166979A (en) System and method for extracting timing information from a modulated carrier
US3789355A (en) Method of and apparatus for logging while drilling
EP0466229B1 (en) Method of and apparatus for detecting an influx into a well while drilling
US4215425A (en) Apparatus and method for filtering signals in a logging-while-drilling system
US4103281A (en) Measuring-while-drilling system having motor speed detection during encoding
US4167000A (en) Measuring-while drilling system and method having encoder with feedback compensation
US5154078A (en) Kick detection during drilling
US4100528A (en) Measuring-while-drilling method and system having a digital motor control
US4215427A (en) Carrier tracking apparatus and method for a logging-while-drilling system
US4423390A (en) Side lock avoidance network for PSK demodulator
US4535306A (en) Phase-locked loop detecting circuit
US3820063A (en) Logging-while-drilling encoder
JPH0748750B2 (ja) 同期復調装置
JPH022770A (ja) 局部発生ボーレートクロックの位相ロック方法及び回路配置
KR880002337A (ko) 개선된 디지탈 신호 프로세서를 갖춘 모뎀
GB2087177A (en) Method and apparatus for stabilizing a carrier tracking loop
GB2352150A (en) Telemetry system in which data signals are modulated on power signals
US5182760A (en) Demodulation system for phase shift keyed modulated data transmission
CA1147840A (en) Method and apparatus for demodulating signals in a logging while drilling system
NO771514L (no) Fremgangsm}te og apparat for utledning av tidsinformasjon fra et b{re-b¦lgesignal
US4429406A (en) Arrangement for checking the synchronization of a receiver
US5825732A (en) Rotation control circuit based on the mean value of run length code generation patterns reproducing apparatus equipped with the rotation control circuit
NO150059B (no) Fremgangsmaate og apparat for overfoering av et modulert akustisk signal
JPS59167813A (ja) 位相同期回路
US4534026A (en) Normalized error compensator for modems using radial amplitude modulation for multiplexing