using combination of fixed frequencies

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CPC
G08C19/14

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GPHYSICS G08Signaling G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS G08C19/00Electric signal transmission systems

Current Industry

G08C19/14using combination of fixed frequencies

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Patents Grantslast 30 patents

Information Patent Grant
Method for protecting a nonmobile work machine driven by an electri...
- Patent number 10,459,033
- Issue date Oct 29, 2019
- Kriwan Industrie-Elektronik GmbH
- Christian Ellwein
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method and system for transmitting a data frame of an electromagnet...
- Patent number 10,202,844
- Issue date Feb 12, 2019
- Evoution Engineering Inc.
- David A. Switzer
- G08 - SIGNALLING
Information Patent Grant
Transmission device, reception device, and communication system and...
- Patent number 10,142,062
- Issue date Nov 27, 2018
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Masaaki Noda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for transmitting a data frame of an electromagnet...
- Patent number 9,988,896
- Issue date Jun 5, 2018
- Evolution Engineering Inc.
- David A. Switzer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and system for transmitting a data frame of an electromagnet...
- Patent number 9,664,038
- Issue date May 30, 2017
- Evolution Engineering Inc.
- David A. Switzer
- E21 - EARTH DRILLING MINING
Information Patent Grant
System for controlling a plurality of equipments
- Patent number 7,522,636
- Issue date Apr 21, 2009
- Kabushiki Kaisha Toshiba
- Hirokazu Sato
- G08 - SIGNALLING
Information Patent Grant
Remote transmitter-receiver controller system
- Patent number 6,005,508
- Issue date Dec 21, 1999
- Philip Y. W. Tsui
- G07 - CHECKING-DEVICES
Information Patent Grant
Remote transmitter-receiver controller for multiple systems
- Patent number 5,841,390
- Issue date Nov 24, 1998
- Philip Y. W. Tsui
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Remote transmitter-receiver controller system
- Patent number 5,680,134
- Issue date Oct 21, 1997
- Philip Y. W. Tsui
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Remote controlled multi-station irrigation system with DTMF transmi...
- Patent number 4,760,547
- Issue date Jul 26, 1988
- Jonathan W. Duxbury
- G08 - SIGNALLING
Information Patent Grant
Multiplexed dual tone multi-frequency encoding/decoding system for...
- Patent number 4,670,875
- Issue date Jun 2, 1987
- Dale Nassar
- G08 - SIGNALLING
Information Patent Grant
Remote control arrangement for a medical appliance
- Patent number 4,231,019
- Issue date Oct 28, 1980
- Stierlen-Maquet Aktiengesellschaft
- Klaus M. Junginger
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method of and remote control apparatus for remotely controlling a m...
- Patent number 4,211,998
- Issue date Jul 8, 1980
- Stierlen-Maquet Aktiengesellschaft
- Klaus M. Junginger
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Remote control transmitter
- Patent number 4,208,654
- Issue date Jun 17, 1980
- Preh, Electrofeinmechanische Werke, Jakob Preh Nachf GmbH & Co.
- Alfred Vogt
- G08 - SIGNALLING
Information Patent Grant
Sequential two tone detector
- Patent number 4,207,474
- Issue date Jun 10, 1980
- Motorola, Inc.
- Greg M. Townsend
- G08 - SIGNALLING
Information Patent Grant
Remote control receiver
- Patent number 4,198,620
- Issue date Apr 15, 1980
- Preh, Elektrofeinmechanische Werke, Jakob Preh Nachf GmbH & Co.
- Alfred Vogt
- G08 - SIGNALLING
Information Patent Grant
Signal decoding system
- Patent number 4,161,722
- Issue date Jul 17, 1979
- The United States of America as represented by the Secretary of the Navy
- Martin S. Tatch
- G08 - SIGNALLING
Information Patent Grant
Down hole pressure/temperature gage connect/disconnect method and a...
- Patent number 4,157,535
- Issue date Jun 5, 1979
- Lynes, Inc.
- Hayati Balkanli
- G08 - SIGNALLING
Information Patent Grant
Recording and reproducing means
- Patent number 4,134,141
- Issue date Jan 9, 1979
- Ansafone Limited
- Stephen P. Robinson
- G08 - SIGNALLING
Information Patent Grant
Telephone answering machines
- Patent number 4,004,276
- Issue date Jan 18, 1977
- Ansafone Limited
- Stephen Perrin Robinson
- G08 - SIGNALLING
Information Patent Grant
3898582
- Patent number 3,898,582
- Issue date Aug 5, 1975
- G08 - SIGNALLING
Information Patent Grant
3893074
- Patent number 3,893,074
- Issue date Jul 1, 1975
- G08 - SIGNALLING
Information Patent Grant
3893121
- Patent number 3,893,121
- Issue date Jul 1, 1975
- G08 - SIGNALLING
Information Patent Grant
3831175
- Patent number 3,831,175
- Issue date Aug 20, 1974
- G08 - SIGNALLING
Information Patent Grant
3823378
- Patent number 3,823,378
- Issue date Jul 9, 1974
- G08 - SIGNALLING
Information Patent Grant
3823385
- Patent number 3,823,385
- Issue date Jul 9, 1974
- G08 - SIGNALLING
Information Patent Grant
3754189
- Patent number 3,754,189
- Issue date Aug 21, 1973
- G08 - SIGNALLING
Information Patent Grant
3754187
- Patent number 3,754,187
- Issue date Aug 21, 1973
- G08 - SIGNALLING
Information Patent Grant
3747108
- Patent number 3,747,108
- Issue date Jul 17, 1973
- G08 - SIGNALLING
Information Patent Grant
3676780
- Patent number 3,676,780
- Issue date Jul 11, 1972
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR TRANSMITTING A DATA FRAME OF AN ELECTROMAGNET...
- Publication number 20160076365
- Publication date Mar 17, 2016
- Evolution Engineering Inc.
- David A. Switzer
- G08 - SIGNALLING
Information Patent Application
System for controlling a plurality of equipments
- Publication number 20050123000
- Publication date Jun 9, 2005
- Kabushiki Kaisha Toshiba
- Hirokazu Sato
- G05 - CONTROLLING REGULATING

using combination of fixed frequencies

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method for protecting a nonmobile work machine driven by an electri...

Method and system for transmitting a data frame of an electromagnet...

Transmission device, reception device, and communication system and...

Method and system for transmitting a data frame of an electromagnet...

Method and system for transmitting a data frame of an electromagnet...

System for controlling a plurality of equipments

Remote transmitter-receiver controller system

Remote transmitter-receiver controller for multiple systems

Remote transmitter-receiver controller system

Remote controlled multi-station irrigation system with DTMF transmi...

Multiplexed dual tone multi-frequency encoding/decoding system for...

Remote control arrangement for a medical appliance

Method of and remote control apparatus for remotely controlling a m...

Remote control transmitter

Sequential two tone detector

Remote control receiver

Signal decoding system

Down hole pressure/temperature gage connect/disconnect method and a...

Recording and reproducing means

Telephone answering machines

3898582

3893074

3893121

3831175

3823378

3823385

3754189

3754187

3747108

3676780

Patents Applicationslast 30 patents

METHOD AND SYSTEM FOR TRANSMITTING A DATA FRAME OF AN ELECTROMAGNET...

System for controlling a plurality of equipments