| Patents for G08C 19 - Electric signal transmission systems (14,477) |
|---|
| 03/14/1978 | US4079316 Sliding tone command receiver system |
| 02/28/1978 | US4077030 Sensor data input by means of analog to pulse width-to digital converter |
| 02/21/1978 | US4075603 Apparatus and method for indicating condition of a rotating body |
| 02/14/1978 | US4074274 Multipoint recorder |
| 02/14/1978 | US4074234 Control system for an aerial device |
| 02/07/1978 | US4072923 Multichannel seismic telemeter system and array former |
| 02/07/1978 | US4072898 Remote control radio system |
| 01/31/1978 | US4071823 Two-wire type amplifier |
| 01/24/1978 | USRE29525 Digital radio control |
| 01/17/1978 | US4069469 System for collecting information in water |
| 01/03/1978 | US4067007 Adaptive compass drive system |
| 01/03/1978 | US4065968 Liquid level measuring apparatus |
| 12/13/1977 | US4062648 Plotter with adaptive velocity means for improving plotted line quality |
| 12/06/1977 | US4060919 Data retrieving device |
| 11/29/1977 | US4060799 Two-speed resolver employing differential reduction techniques |
| 11/22/1977 | US4059727 Data transmission system between telephone subscriber location and telephone exchange location during idle telephone condition |
| 11/22/1977 | US4059015 Angle-to-current converter |
| 10/25/1977 | US4055772 Digitally coded electrical supply system |
| 10/11/1977 | US4053879 Fail safe digital code rate generator |
| 10/04/1977 | US4052701 Low cost remote control receiver |
| 10/04/1977 | US4052700 Remote control receiver |
| 10/04/1977 | US4052696 Tire condition monitor |
| 09/20/1977 | US4049986 Rotational speed to impulse frequency converter |
| 08/09/1977 | US4041541 Supervisory and control system for rotary machinery, particularly rotary electrical machines |
| 07/19/1977 | US4037219 Meter dial encoder for remote meter reading |
| 07/19/1977 | US4037201 Digital radio control |
| 07/12/1977 | US4035763 Wireline tool for measuring bottom-hole pressure in pumping wells |
| 06/21/1977 | US4031531 Synchro-to-digital converter |
| 06/21/1977 | US4031477 System for transferring four commands over a single conductor utilizing dual threshold logic gates |
| 06/21/1977 | US4031362 Electronic remote reading system for a meter |
| 06/07/1977 | US4028620 Electrical wiring system for selectively actuating electrical loads |
| 05/31/1977 | US4027301 System for serially transmitting parallel digital data |
| 05/24/1977 | US4025847 Measurement system including bridge circuit |
| 05/17/1977 | US4024495 Remote temperature change warning system |
| 05/10/1977 | US4023136 Borehole telemetry system |
| 04/26/1977 | US4020359 Electrical control system |
| 04/19/1977 | US4019135 Recording device for energy meters |
| 04/12/1977 | US4017832 Two wire command and monitoring system |
| 04/12/1977 | US4016763 Two wire current transmitter responsive to a resistive temperature sensor input signal |
| 04/05/1977 | US4015472 Two-wire transmission system for vortex flowmeter |
| 03/22/1977 | US4013899 Apparatus for converting a potential signal developed between two high impedance electrodes to a current signal and for transmitting this current signal to a remote location over a two wire transmission |
| 03/15/1977 | US4012733 Distribution power line communication system including a messenger wire communications link |
| 03/08/1977 | US4011440 System for generating an angular rate signal from an angular position signal utilizing a constant amplitude-variable carrier phase signal |
| 03/01/1977 | US4010447 Signal transmitter using an active thick film substrate |
| 02/08/1977 | US4007455 Energy conserving pulse keying technique for a radio control system |
| 02/01/1977 | US4006462 Digital remote control system with signal verification |
| 02/01/1977 | US4006449 Information detector for a tire wheel |
| 01/18/1977 | US4004276 Telephone answering machines |
| 01/04/1977 | US4001703 Transmission line interface circuit |
| 11/30/1976 | US3995267 Digital to analog converter with system gain insensitivity |
| 11/23/1976 | US3993977 Two wire command and monitoring system |
| 11/23/1976 | US3993947 Admittance measuring system for monitoring the condition of materials |
| 11/23/1976 | US3993892 Device for transmitting information in the form of electrical signals to at least one mechanism for displaying or printing this information |
| 11/02/1976 | US3990062 Resolver to digital converter |
| 11/02/1976 | US3990047 Burst transmission control system |
| 11/02/1976 | US3990041 Device for transmitting the condition of a switch between two parts in relative rotary movement |
| 09/14/1976 | US3980954 Bidirectional communication system for electrical power networks |
| 08/17/1976 | US3975719 Transducer for converting a varying reactance signal to a DC current signal |
| 08/17/1976 | US3975589 Transponder for transmitting data from digital encoding transducers over a telephone line |
| 08/03/1976 | US3973124 Infrared line scanning instrument |
| 07/27/1976 | US3972038 Accelerometer telemetry system |
| 06/15/1976 | US3962911 Method and apparatus for coupling signals from a rotating device with end shafts exposed |
| 06/01/1976 | US3961318 Electrostatic position-measuring transducer |
| 06/01/1976 | US3961317 System for remote reading of indicating devices such as meters and the like |
| 05/25/1976 | US3959786 Isolated two-wire transmitter |
| 05/25/1976 | US3959772 Two-wire signal transmission system |
| 04/06/1976 | US3949297 Information signal transmitting system |
| 03/30/1976 | US3946591 Method of and system for detecting the rate of an electronic timepiece |
| 03/23/1976 | US3946311 Air core gauge with expanded pointer range |
| 03/23/1976 | US3946208 Service meter with pulse counter |
| 03/16/1976 | US3944982 Remote control system for electric apparatus |
| 03/09/1976 | US3943498 Direct input photoelectric pulse initiator for meter telemetry and recording systems |
| 03/02/1976 | US3942137 Device for the remote adjustment of an inaccessible element |
| 02/24/1976 | US3940752 Transducing system |
| 02/17/1976 | US3939419 Security remote control method and system |
| 02/17/1976 | US3939304 Decommutator for extracting zero and one bits from a coded message of duration-modulated pulses |
| 01/13/1976 | US3932714 Remote electrical transmission system |