Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1980-04-08
1982-01-12
Orsino, Jr., Joseph A.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
H04N 530
Patent
active
043108520
ABSTRACT:
A real time electromagnetic radiation intensity distribution imaging system. The system includes an array of sensors, such as receiving antennas, for collecting electromagnetic radiation within a given frequency range, each of which is operable for producing a received signal in response to the collected radiation; an array of transmitting antennas geometrically corresponding at a reduced scale to the array of sensors for transmitting electromagnetic radiation within the millimeter wave range; and a branching network having a plurality of channels that individually connect the sensors to the antennas having corresponding positions in the respective arrays. The branching network includes a device for producing a reference signal that is temporally coherent with the received signals; a mixer in each channel for mixing each received signal with the reference signal to provide a coherent intensity signal in each channel; an oscillator for producing a millimeter wave signal; and a modulator in each channel for modulating the millimeter wave signal with the intensity signal produced in such channel to provide intensity modulated millimeter wave signals for transmission from the transmitting antennas. The system further includes a lens for forming an image of the intensity distribution among the modulated millimeter wave signals transmitted from the array of transmitting antennas; and a device for sensing and displaying the intensity distribution image formed by the lens. In an alternative system, coherent visible light waves produced by lasers are intensity modulated instead of millimeter waves when it is desired to provide an image of the intensity distribution of millimeter wave electromagnetic radiation.
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General Dynamics Corp. Electronics Division
Orsino Jr. Joseph A.
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