GB1310411A - Methods and apparatus for communicating between a main station and secondary stations - Google Patents
Methods and apparatus for communicating between a main station and secondary stationsInfo
- Publication number
- GB1310411A GB1310411A GB1490670A GB1490670A GB1310411A GB 1310411 A GB1310411 A GB 1310411A GB 1490670 A GB1490670 A GB 1490670A GB 1490670 A GB1490670 A GB 1490670A GB 1310411 A GB1310411 A GB 1310411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- address
- station
- message
- remote station
- frequency
- 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.)
- Expired
Links
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 239000003129 oil well Substances 0.000 abstract 1
- 230000003071 parasitic effect Effects 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/02—Non-electrical signal transmission systems, e.g. optical systems using infrasonic, sonic or ultrasonic waves
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0025—Crystal modifications; Special X-ray patterns
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
- H04Q9/08—Calling by using continuous ac
- H04Q9/12—Calling by using continuous ac using combinations of frequencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S367/00—Communications, electrical: acoustic wave systems and devices
- Y10S367/901—Noise or unwanted signal reduction in nonseismic receiving system
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Geophysics (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6910366A FR2040580A5 (sv) | 1969-04-03 | 1969-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1310411A true GB1310411A (en) | 1973-03-21 |
Family
ID=9031919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1490670A Expired GB1310411A (en) | 1969-04-03 | 1970-03-26 | Methods and apparatus for communicating between a main station and secondary stations |
Country Status (8)
Country | Link |
---|---|
US (1) | US3717844A (sv) |
BE (1) | BE747972A (sv) |
CA (1) | CA923216A (sv) |
DE (1) | DE2015773A1 (sv) |
FR (1) | FR2040580A5 (sv) |
GB (1) | GB1310411A (sv) |
NL (1) | NL7004769A (sv) |
SE (1) | SE380957B (sv) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2182180A (en) * | 1985-10-30 | 1987-05-07 | Otis Eng Co | Electronic control system with fiber optic link |
GB2332549A (en) * | 1997-12-22 | 1999-06-23 | Smc Kk | Electropneumatic regulator system |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4065747A (en) * | 1975-11-28 | 1977-12-27 | Bunker Ramo Corporation | Acoustical underwater communication system for command control and data |
FR2459895A1 (fr) * | 1979-06-25 | 1981-01-16 | Secoma | Dispositif d'alimentation et de commande a distance pour une pluralite de recepteurs hydrauliques disposes sur un meme engin |
US4937821A (en) * | 1987-01-27 | 1990-06-26 | Readtronics | Pipeline information delivery system |
US4800541A (en) * | 1987-02-12 | 1989-01-24 | Canadian Patents And Development Limited | Method for underwater acoustic direction sensing |
US5099346A (en) * | 1988-01-27 | 1992-03-24 | Spectrix Corporation | Infrared communications network |
US5247380A (en) * | 1988-01-27 | 1993-09-21 | Spectrix Corp | Infrared communications network |
DE4033292A1 (de) * | 1990-10-19 | 1992-04-23 | Uwatec Ag | Ueberwachungsvorrichtung fuer mobile atemgeraete |
US5251187A (en) * | 1991-03-20 | 1993-10-05 | Parra Jorge M | Method and apparatus for separating dolphin from tuna and steering dolphin to a safe area |
EP0981767B1 (en) * | 1997-05-15 | 2007-03-14 | Geo-x Systems Ltd. | Seismic data acquisition system |
US6002640A (en) * | 1997-05-15 | 1999-12-14 | Geo-X Systems, Inc. | Seismic data acquisition system |
DE19742716C5 (de) * | 1997-09-26 | 2005-12-01 | Phoenix Contact Gmbh & Co. Kg | Steuer- und Datenübertragungsanlage und Verfahren zum Übertragen von sicherheitsbezogenen Daten |
US6018501A (en) * | 1997-12-10 | 2000-01-25 | Halliburton Energy Services, Inc. | Subsea repeater and method for use of the same |
US6061551A (en) * | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US6091940A (en) * | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
US7515896B1 (en) | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
US6542722B1 (en) * | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US6049706A (en) * | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US7295826B1 (en) | 1998-10-21 | 2007-11-13 | Parkervision, Inc. | Integrated frequency translation and selectivity with gain control functionality, and applications thereof |
US6813485B2 (en) | 1998-10-21 | 2004-11-02 | Parkervision, Inc. | Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US7321735B1 (en) | 1998-10-21 | 2008-01-22 | Parkervision, Inc. | Optical down-converter using universal frequency translation technology |
US7039372B1 (en) * | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6560301B1 (en) * | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US7006805B1 (en) | 1999-01-22 | 2006-02-28 | Parker Vision, Inc. | Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service |
US6704558B1 (en) | 1999-01-22 | 2004-03-09 | Parkervision, Inc. | Image-reject down-converter and embodiments thereof, such as the family radio service |
US6704549B1 (en) | 1999-03-03 | 2004-03-09 | Parkvision, Inc. | Multi-mode, multi-band communication system |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
US6853690B1 (en) * | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
US6873836B1 (en) * | 1999-03-03 | 2005-03-29 | Parkervision, Inc. | Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology |
US7110435B1 (en) | 1999-03-15 | 2006-09-19 | Parkervision, Inc. | Spread spectrum applications of universal frequency translation |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
US7693230B2 (en) * | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
US7072390B1 (en) | 1999-08-04 | 2006-07-04 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments |
US7054296B1 (en) | 1999-08-04 | 2006-05-30 | Parkervision, Inc. | Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation |
US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
US7082171B1 (en) * | 1999-11-24 | 2006-07-25 | Parkervision, Inc. | Phase shifting applications of universal frequency translation |
US6963734B2 (en) | 1999-12-22 | 2005-11-08 | Parkervision, Inc. | Differential frequency down-conversion using techniques of universal frequency translation technology |
US7292835B2 (en) * | 2000-01-28 | 2007-11-06 | Parkervision, Inc. | Wireless and wired cable modem applications of universal frequency translation technology |
US7010286B2 (en) * | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
US7554508B2 (en) | 2000-06-09 | 2009-06-30 | Parker Vision, Inc. | Phased array antenna applications on universal frequency translation |
US6584406B1 (en) | 2000-06-15 | 2003-06-24 | Geo-X Systems, Ltd. | Downhole process control method utilizing seismic communication |
US6885918B2 (en) * | 2000-06-15 | 2005-04-26 | Geo-X Systems, Ltd. | Seismic monitoring and control method |
US7010559B2 (en) | 2000-11-14 | 2006-03-07 | Parkervision, Inc. | Method and apparatus for a parallel correlator and applications thereof |
US7454453B2 (en) * | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
GB2391889A (en) * | 2001-04-30 | 2004-02-18 | Shell Int Research | Subsea drilling riser disconnect system and method |
US6977867B2 (en) * | 2001-06-05 | 2005-12-20 | Geo-X Systems, Ltd. | Seismic data acquisition system |
US7085335B2 (en) | 2001-11-09 | 2006-08-01 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US7072427B2 (en) * | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US6942034B2 (en) * | 2002-02-01 | 2005-09-13 | Geo-X Systems, Ltd. | Extent of detonation determination method using seismic energy |
US6975848B2 (en) | 2002-06-04 | 2005-12-13 | Parkervision, Inc. | Method and apparatus for DC offset removal in a radio frequency communication channel |
US7321640B2 (en) | 2002-06-07 | 2008-01-22 | Parkervision, Inc. | Active polyphase inverter filter for quadrature signal generation |
US7379883B2 (en) * | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
US7460584B2 (en) * | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
TWI280690B (en) * | 2003-03-18 | 2007-05-01 | Tdk Corp | Electronic device for wireless communications and reflector device for wireless communication cards |
WO2004086093A1 (en) * | 2003-03-20 | 2004-10-07 | Baker Hughes Incorporated | Use of pattern recognition in a measurement of formation transit time for seismic checkshots |
US8305227B2 (en) * | 2005-06-15 | 2012-11-06 | Wfs Technologies Ltd. | Wireless auxiliary monitoring and control system for an underwater installation |
GB2478761B (en) * | 2010-03-17 | 2012-02-22 | Wfs Technologies Ltd | Wireless auxiliary monitoring and control system for an underwater installation |
US20220368430A1 (en) * | 2019-06-26 | 2022-11-17 | Nippon Telegraph And Telephone Corporation | Communication System, Slave Station, and Communication Method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2282102A (en) * | 1940-12-12 | 1942-05-05 | Rca Corp | Signaling |
US2643369A (en) * | 1945-09-28 | 1953-06-23 | Theodore M Manley | Modulated pulse remote control |
US3299358A (en) * | 1963-01-23 | 1967-01-17 | Philco Ford Corp | Remote control receiver with a detector responsive only to unmodulated carrier wave |
US3348226A (en) * | 1963-08-12 | 1967-10-17 | Edgar H Fischer | Automaton command circuit |
US3313160A (en) * | 1964-06-29 | 1967-04-11 | David A Goldman | Remote meter reading system |
US3427554A (en) * | 1967-07-03 | 1969-02-11 | Honeywell Inc | Control apparatus |
-
1969
- 1969-04-03 FR FR6910366A patent/FR2040580A5/fr not_active Expired
-
1970
- 1970-03-26 GB GB1490670A patent/GB1310411A/en not_active Expired
- 1970-03-26 BE BE747972D patent/BE747972A/xx unknown
- 1970-03-31 SE SE7004343A patent/SE380957B/sv unknown
- 1970-04-01 CA CA078919A patent/CA923216A/en not_active Expired
- 1970-04-02 DE DE19702015773 patent/DE2015773A1/de active Pending
- 1970-04-02 US US00025017A patent/US3717844A/en not_active Expired - Lifetime
- 1970-04-03 NL NL7004769A patent/NL7004769A/xx unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2182180A (en) * | 1985-10-30 | 1987-05-07 | Otis Eng Co | Electronic control system with fiber optic link |
GB2332549A (en) * | 1997-12-22 | 1999-06-23 | Smc Kk | Electropneumatic regulator system |
GB2332549B (en) * | 1997-12-22 | 2000-02-16 | Smc Kk | Electropneumatic regulator system |
US6119721A (en) * | 1997-12-22 | 2000-09-19 | Smc Kabushiki Kaisha | Electropneumatic regulator system |
Also Published As
Publication number | Publication date |
---|---|
CA923216A (en) | 1973-03-20 |
SE380957B (sv) | 1975-11-17 |
BE747972A (fr) | 1970-08-31 |
NL7004769A (sv) | 1970-10-06 |
FR2040580A5 (sv) | 1971-01-22 |
DE2015773A1 (de) | 1970-10-15 |
US3717844A (en) | 1973-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |