Modulating system

Claim 2

An amplifier circuit comprising, an electronic valve, an input circuit for coupling an input signal to said valve, an output circuit for said valve, a unidirectional voltage source characterized by a terminal voltage which decreases as the current increases, and means for connecting said source into said output circuit, whereby variations in the terminal voltage of said source represent the desired amplifier output.

Claim 3

An amplifier circuit comprising, an electronic valve, an input circuit for coupling an input signal to said valve, an output circuit for said valve, a unidirectional voltage source characterized by a terminal voltage which decreases as the current increases, and means for connecting said source into said output circuit, whereby variations in the terminal voltage of said source represent the desired amplifier output.

Claim 4

An amplifier circuit comprising, an electronic valve, an input circuit for coupling an input signal to said valve, an output circuit for said valve, a unidirectional voltage source characterized by a terminal voltage which decreases as the current increases, and means for connecting said source into said output circuit, whereby variations in the terminal voltage of said source represent the desired amplifier output.

Claim 5

An amplifier circuit comprising, an electronic valve having first, second and third electrodes, means for applying an input signal between said first and second electrodes, a unidirectional conducting device having first and second electrodes, means for connecting said first electrode of said device directly to said second electrode of said valve, and means for connecting said second electrode of said device directly to said third electrode of said valve, whereby variations in the voltage across said device constitute the useful output of said amplifier.

Claim 6

An amplifier circuit comprising, an electronic valve having first, second and third electrodes, means for applying an input signal between said first and second electrodes, a unidirectional conducting device having first and second electrodes, means for connecting said first electrode of said device directly to said second electrode of said valve, and means for connecting said second electrode of said device directly to said third electrode of said valve, whereby variations in the voltage across said device constitute the useful output of said amplifier.

Claim 7

An amplifier circuit comprising, an electronic valve having first, second and third electrodes, means for applying an input signal between said first and second electrodes, a voltage divider connected across said second and third electrodes and having an intermediate point connected to said first electrode, a rectifying element having first and second terminals, means for connecting said first terminal directly to said second electrode and means for connecting said second terminal directly to said third electrode, whereby the incidence of radio frequency energy upon said element energizes said valve and causes voltage variations to appear across said element, which variations are an amplified version of the input signal.

Claim 8

An amplifier circuit comprising, an electronic valve having first, second and third electrodes, means for applying an input signal between said first and second electrodes, a voltage divider connected across said second and third electrodes and having an intermediate point connected to said first electrode, a rectifying element having first and second terminals, means for connecting said first terminal directly to said second electrode and means for connecting said second terminal directly to said third electrode, whereby the incidence of radio frequency energy upon said element energizes said valve and causes voltage variations to appear across said element, which variations are an amplified version of the input signal.

Claim 9

A modulating system comprising, an antenna for intercepting radio frequency energy and creating a region of high field strength, a rectifying element positioned in said region, an electronic amplifier, means for connecting the input circuit of said amplifier to a source of signal voltage, and means for connecting said rectifying element in the output circuit of said amplifier, whereby radio frequency energy incident upon said antenna causes a unidirectional voltage to appear across said rectifying element, said voltage acts as the power supply for said amplifier, voltage variations corresponding to said signal voltage appear across said element in amplified form, and said voltage variations modulate the incident radio frequency energy which is then reradiated.

Claim 10

A modulating system comprising, an antenna for intercepting radio frequency energy and creating a region of high field strength, a rectifying element positioned in said region, an electronic amplifier, means for connecting the input circuit of said amplifier to a source of signal voltage, and means for connecting said rectifying element in the output circuit of said amplifier, whereby radio frequency energy incident upon said antenna causes a unidirectional voltage to appear across said rectifying element, said voltage acts as the power supply for said amplifier, voltage variations corresponding to said signal voltage appear across said element in amplified form, and said voltage variations modulate the incident radio frequency energy which is then reradiated.

Claim 11

A modulating system comprising, a transistor including a base, an emitter and a collector, means for applying a signal voltage across said base and said emitter, a voltage divider connected between said collector and said emitter and having an intermediate portion connected to said base, a radio frequency transmission path, an antenna coupled to said path, a rectifying element positioned to be subjected to the field associated with said transmission path, a capacitor having low impedance to radio frequencies but high impedance to signal frequencies connected in parallel with said rectifying element, and means for connecting said collector and said emitter in parallel with said rectifying element, whereby said rectifying element serves as an element in the power supply for said transistor, as the output element for the transistor amplifier, and as a modulating element.

Claim 12

A modulating system comprising, a transistor including a base, an emitter and a collector, means for applying a signal voltage across said base and said emitter, a voltage divider connected between said collector and said emitter and having an intermediate portion connected to said base, a radio frequency transmission path, an antenna coupled to said path, a rectifying element positioned to be subjected to the field associated with said transmission path, a capacitor having low impedance to radio frequencies but high impedance to signal frequencies connected in parallel with said rectifying element, and means for connecting said collector and said emitter in parallel with said rectifying element, whereby said rectifying element serves as an element in the power supply for said transistor, as the output element for the transistor amplifier, and as a modulating element.

Claim 13

A modulating system comprising, a conductor carrying a signal current, a support member, an insulator for enabling said conductor to be supported by said member yet electrically insulated therefrom, said insulator being made at least in part of a ferromagnetic dielectric, a multi-turn winding carried by said insulator and constituting one winding of a transformer the other winding of which is said conductor and the core of which is the ferromagnetic portion of said insulator, an antenna for concentrating incident radio frequency energy into a region of high field strength, a rectifying element positioned in said region, an amplifier having its input connected to said winding, and means for connecting said rectifying element in the output circuit of said amplifier.

Claim 14

A modulating system comprising, a conductor carrying a signal current, a support member, an insulator for enabling said conductor to be supported by said member yet electrically insulated therefrom, said insulator being made at least in part of a ferromagnetic dielectric, a multi-turn winding carried by said insulator and constituting one winding of a transformer the other winding of which is said conductor and the core of which is the ferromagnetic portion of said insulator, an antenna for concentrating incident radio frequency energy into a region of high field strength, a rectifying element positioned in said region, an amplifier having its input connected to said winding, and means for connecting said rectifying element in the output circuit of said amplifier.

Claim 15

A modulating system compRising, a conductor carrying a signal current, a support member, an insulator for enabling said conductor to be supported by said member yet electrically insulated therefrom, said insulator being made at least in part of a ferromagnetic dielectric, a multi-turn winding carried by said insulator and constituting one winding of a transformer the other winding of which is said conductor and the core of which is the ferromagnetic portion of said insulator, a transistor including a base, an emitter, and a collector, means for applying the signal voltage of said one winding across said base and said emitter, a voltage divider connected between said collector and said emitter and having an intermediate portion connected to said base, a radio frequency transmission path, an antenna coupled to said path, a rectifying element positioned to be subjected to the electromagnetic field associated with said transmission path, a capacitor connected in parallel with said rectifier element having low impedance to radio frequencies but high impedance to signal frequencies, and means for connecting said collector and said emitter in parallel with said rectifying element.

Claim 16

A modulating system compRising, a conductor carrying a signal current, a support member, an insulator for enabling said conductor to be supported by said member yet electrically insulated therefrom, said insulator being made at least in part of a ferromagnetic dielectric, a multi-turn winding carried by said insulator and constituting one winding of a transformer the other winding of which is said conductor and the core of which is the ferromagnetic portion of said insulator, a transistor including a base, an emitter, and a collector, means for applying the signal voltage of said one winding across said base and said emitter, a voltage divider connected between said collector and said emitter and having an intermediate portion connected to said base, a radio frequency transmission path, an antenna coupled to said path, a rectifying element positioned to be subjected to the electromagnetic field associated with said transmission path, a capacitor connected in parallel with said rectifier element having low impedance to radio frequencies but high impedance to signal frequencies, and means for connecting said collector and said emitter in parallel with said rectifying element.

Claim 17

An amplifier circuit comprising, an electronic valve, an input circuit connected to said valve, means for connecting a signal voltage to said input circuit, an output circuit connected to said valve, and a component connected in said output circuit serving the dual function of the power supply for said valve and the load across which the useful output voltage is developed, said component comprising a unidirectional voltage source having poor voltage regulation.

Claim 18

An amplifier circuit comprising, an electronic valve, an input circuit connected to said valve, means for connecting a signal voltage to said input circuit, an output circuit connected to said valve, and a component connected in said output circuit serving the dual function of the power supply for said valve and the load across which the useful output voltage is developed, said component comprising a unidirectional voltage source having poor voltage regulation.

Claim 19

An amplifier circuit comprising, an electronic valve, an input circuit connected to said valve, means for connecting a signal voltage to said input circuit, a network for biasing all of the electrodes of said valve from a single source of unidirectional voltage, an output circuit connected to said valve, a component connected in said output circuit serving the dual function of the power supply for said valve and the load across which the useful output voltage is developed, said component comprising a unidirectional voltage source having poor voltage regulation, and means for connecting said component to said network.

Claim 20

An amplifier circuit comprising, an electronic valve, an input circuit connected to said valve, means for connecting a signal voltage to said input circuit, a network for biasing all of the electrodes of said valve from a single source of unidirectional voltage, an output circuit connected to said valve, a component connected in said output circuit serving the dual function of the power supply for said valve and the load across which the useful output voltage is developed, said component comprising a unidirectional voltage source having poor voltage regulation, and means for connecting said component to said network.

Claim 21

A modulating system comprising, an electronic valve, an amplifier circuit connected to said valve and including an input circuit and an output circuit, means for connecting a signal voltage to said input circuit, a network for biasing all of the electrodes of said valve from a single source of unidirectional voltage, an antenna for concentrating incident electromagnetic wave energy to create a region of high field strength and for reradiating a portion of the received energy, a unidirectional conducting device positioned in said region, and means for connecting said device in said output circuit and to said network, whereby said device serves the triple purpose of the power supply for said valve, the load across which the useful output voltage of said amplifier is developed, and the modulating element.

Claim 22

A modulating system comprising, an electronic valve, an amplifier circuit connected to said valve and including an input circuit and an output circuit, means for connecting a signal voltage to said input circuit, a network for biasing all of the electrodes of said valve from a single source of unidirectional voltage, an antenna for concentrating incident electromagnetic wave energy to create a region of high field strength and for reradiating a portion of the received energy, a unidirectional conducting device positioned in said region, and means for connecting said device in said output circuit and to said network, whereby said device serves the triple purpose of the power supply for said valve, the load across which the useful output voltage of said amplifier is developed, and the modulating element.

Claim 23

Modulating apparatus comprising, a horn antenna for gathering incident microwave energy and creating a region of high field strength, a crystal diode positioned in said region, and means for applying a signal voltage to said diode, whereby microwave energy reaching said antenna will be modulated by said signal voltage and said antennA will radiate the modulated energy.

Claim 24

Modulating apparatus comprising, a horn antenna for gathering incident microwave energy and creating a region of high field strength, a crystal diode positioned in said region, and means for applying a signal voltage to said diode, whereby microwave energy reaching said antenna will be modulated by said signal voltage and said antennA will radiate the modulated energy.