Device and method for signal processing
AssigneeNovatrans Group SA
InventorsErez Halahmi, Gilad Diamant, Dimitry Shvarts, Ron Naaman, Leeor Kronik
Life of this patent
Estimating the term…
Abstract
An analog real-time signal processing device and method are presented. The device is configured to perform electrical signal processing. The device comprises an electronic circuit including at least one basic unit of electrodes, the basic unit being configured to be sensitive to an external field, such as input photon flux, indicative of a first input signal to cause emission of charged particles and configured to define at least one electrical input for a second input signal and one electrical output, thereby providing the electrical output in the form of an approximation of a product of the first and second input signals.
Claims44
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit including at least one basic unit, the basic unit comprising a triode with a Photocathode to cause electrons' emission in response to an input photon flux indicative of a first input signal and at least one Gate electrode for a second electrical input and one Anode for electrical output, thereby providing the electrical output in the form of an approximation of a product of the input first and second signals, wherein the triode is configured with a selected ratio between a length G of the input Gate electrode and a width W of a cavity between the input Gate and the output Anode electrode to provide substantially linear I-V characteristic.
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit that includes an array of the basic units, each basic unit comprising at least one Photocathode for applying thereto an input photon flux indicative of a first input signal to cause electrons' emission in response to the first input signal and comprising at least one input electrode for applying a second electrical input thereto and an output electrode providing electrical output of the basic unit, thereby allowing to expose the Photocathode to the photon flux indicative of the first input signal, x(t), and to operate the input electrode with the second electrical input signal, V(t), thus causing the output signal, I(t), at said output electrode in the form of approximation of a product x(t)·V(t), the basic units being arranged such that all the Photocathodes are maintained at the same potential, the device having one of the following configurations:
- (i) the same input signal, x(t), is supplied to all the Photocathodes, and different functions of the input signal, V(t), are supplied to said input electrodes;
- and (ii) the same input voltage signal, V(t), is supplied to all the input electrodes, and different functions of the input signal, x(t), are used for illuminating different Photocathodes.
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit that includes an array of the basic units, each basic unit comprising at least one Photocathode for applying thereto an input photon flux indicative of a first input signal to cause electrons' emission in response to the first input signal and comprising at least one input electrode for applying a second electrical input thereto and an output electrode providing electrical output of the basic unit, thereby allowing to expose the Photocathode to the photon flux indicative of the first input signal, x(t), and to operate the input electrode with the second electrical input signal, V(t), thus causing the output signal, I(t), at said output electrode in the form of approximation of a product x(t)·V(t), the basic units being arranged such that all the Photocathodes are maintained at the same potential, the device being configured and operable to supply to all the Photocathodes the same input light signal, x(t), and supply different functions of the input voltage signal, V(t), to the different Gates, respectively, and being adapted to perform at least one of the following signal processing operations:
- transformation of one of the first and second input signals to a required linear space in accordance with a selected base function defining the other of the first and second input signals;
- determine correlation between the first and second input signals;
- identification of a certain signal component in one of the input signals by supplying said certain signal component as the other input signal.
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit including at least one basic unit, the basic unit comprising a triode with a Photocathode to cause electrons' emission in response to an input photon flux indicative of a first input signal and at least one Gate electrode for a second electrical input and one Anode for electrical output, and an insulating layer structure between the input Gate electrode and the Photocathode, the electrical output at the Anode being in the form of an approximation of a product of the input first and second signals.
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit including at least one basic unit, the basic unit comprising a triode having a substantially linear configuration and being formed by a Photocathode to cause electrons' emission in response to an input photon flux indicative of a first input signal, at least one Gate electrode for a second electrical input, and one Anode for electrical output, an insulating layer structure being provided between the input Gate electrode and the Photocathode.
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit comprising at least one basic unit, the basic unit comprising at least one Photocathode for applying thereto an input photon flux indicative of a first input signal to cause electrons' emission in response to the first input signal and comprising at least one input electrode for applying a second electrical input thereto and an output electrode providing electrical output of the basic unit, thereby allowing to expose the Photocathode to the photon flux indicative of the first input signal, x(t), and to operate the input electrode with the second electrical input signal, V(t), thus causing the output signal, I(t), at said output electrode in the form of approximation of a product x(t)·V(t), a distance between the Photocathode and the output Anode electrode substantially not exceeding 10 microns.
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit comprising at least one basic unit, the basic unit comprising at least one Photocathode for applying thereto an input photon flux indicative of a first input signal to cause electrons' emission in response to the first input signal and comprising at least one input electrode for applying a second electrical input thereto and an output electrode providing electrical output of the basic unit, thereby allowing to expose the Photocathode to the photon flux indicative of the first input signal, x(t), and to operate the input electrode with the second electrical input signal, V(t), thus causing the output signal, I(t), at said output electrode in the form of approximation of a product x(t)·V(t), a spectrum of the photon flux to the Photocathode being substantially of a work function of the Photocathode, thereby providing a narrow energy distribution of emitted electrons.
An analog real-time signal processing device configured to perform electrical signal processing, the device comprising an electronic circuit including at least one basic unit, the basic unit comprising a triode with a Photocathode to cause electrons' emission in response to an input photon flux indicative of a first input signal and at least one Gate electrode for a second electrical input and one Anode for electrical output, the electrical output at the Anode being in the form of an approximation of a product of the input first and second signals, a spectrum of the photon flux to the Photocathode being substantially of a work function of the Photocathode, thereby providing a narrow energy distribution of emitted electrons.
An analog real-time signal processing device for performing electrical signal processing, the device comprising an electronic circuit formed by an electrodes' arrangement including an array of basic units each including at least a Photocathode, an Anode and a Gate;
- the device being configured such that all the Photocathodes are maintained at the same potential, and each of the basic units is operable by two input signals including a photon flux indicative of the first input signal for extracting electrons from the Photocathode and a second input electrical signal supplied to the Gate, such that either one of the input signals is the same for all the basic units and the other input signal is different for different basic units, an output signal at each of the Anodes being therefore in the form of a product of the respective two input signals.
An analog real-time signal transformer device for performing electrical transformation, the device comprising an electronic circuit including an electrodes' arrangement formed by a predetermined number of basic units each including at least a Photocathode, an Anode and a Gate, thereby allowing for electrons' extraction from the Photocathode by a photon flux being a function of an input signal, x(t), that is to undergo certain transformation;
- an electrical signal generator for supplying to the Gate a certain base function, V(t), defining said transformation, the device being thereby operable to provide an output signal at the Anode electrode of the basic unit in the form of said transformation of the input signal.
An electronic device including a Cathode electrode, a Gate electrode, and an Anode electrode, which are arranged such that a distance I between the Cathode' surface by which it faces the Anode's plane and the Gate's surface by which it faces the Anode's plane is significantly smaller than a distance L between the facing surfaces of the Cathode and the Anode, an Anode current Ia being a substantially linear function of a voltage applied to the Gate.
Dependencies are inferred from the claim text.