IE45139B1 - System for extracting timing information from a modulated carrier - Google Patents
System for extracting timing information from a modulated carrierInfo
- Publication number
- IE45139B1 IE45139B1 IE860/77A IE86077A IE45139B1 IE 45139 B1 IE45139 B1 IE 45139B1 IE 860/77 A IE860/77 A IE 860/77A IE 86077 A IE86077 A IE 86077A IE 45139 B1 IE45139 B1 IE 45139B1
- Authority
- IE
- Ireland
- Prior art keywords
- signal
- oscillator
- carrier
- derived
- symbol
- Prior art date
Links
- 230000007704 transition Effects 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000005553 drilling Methods 0.000 claims description 17
- 230000004044 response Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 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)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Communication Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68460476A | 1976-05-10 | 1976-05-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE45139L IE45139L (en) | 1977-11-10 |
| IE45139B1 true IE45139B1 (en) | 1982-06-30 |
Family
ID=24748755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE860/77A IE45139B1 (en) | 1976-05-10 | 1977-04-28 | System for extracting timing information from a modulated carrier |
Country Status (15)
Families Citing this family (1)
| 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 |
-
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 CA CA000277997A patent/CA1119686A/en not_active Expired
- 1977-05-09 AR AR267532A patent/AR222004A1/es active
- 1977-05-09 GB GB19325/77A patent/GB1579488A/en not_active Expired
- 1977-05-09 ES ES458606A patent/ES458606A1/es not_active Expired
- 1977-05-10 NL NL7705119A patent/NL7705119A/xx not_active Application Discontinuation
- 1977-05-10 DE DE19772721023 patent/DE2721023A1/de not_active Withdrawn
- 1977-05-10 GR GR53425A patent/GR63199B/el unknown
- 1977-05-10 OA OA56165A patent/OA05657A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2351549B1 (enrdf_load_stackoverflow) | 1980-02-15 |
| IE45139L (en) | 1977-11-10 |
| GR63199B (en) | 1979-10-04 |
| ES458606A1 (es) | 1978-08-01 |
| BR7702901A (pt) | 1978-05-16 |
| NL7705119A (nl) | 1977-11-14 |
| FR2351549A1 (fr) | 1977-12-09 |
| GB1579488A (en) | 1980-11-19 |
| CA1119686A (en) | 1982-03-09 |
| DE2721023A1 (de) | 1977-12-01 |
| OA05657A (fr) | 1981-04-30 |
| IT1101653B (it) | 1985-10-07 |
| NO771514L (no) | 1977-11-08 |
| EG13329A (en) | 1981-06-30 |
| AU513642B2 (en) | 1980-12-11 |
| AU2486077A (en) | 1978-11-09 |
| AR222004A1 (es) | 1981-04-15 |
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