Radar radiometer and its use
Patent 4347515 Issued on August 31, 1982. Estimated Expiration Date: 
October 14, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 14, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3359555 3599207 3701989 3766556 3778824 3787857 3836966 Time sharing circuit for guard radar receiver in radar ranging system Augmented radiometric system Patent #: 4292638 InventorApplicationNo. 06/196225 filed on 10/14/1980US Classes:342/351, Including a radiometer342/198For receiver protectionExaminersPrimary: Tubbesing, T. H.Attorney, Agent or FirmInternational ClassesG01S 13/86 (20060101)G01K 11/00 (20060101) G01S 7/02 (20060101) G01S 13/00 (20060101) AbstractA radar radiometer apparatus including a superheterodyne amplifier, a synonous demodulator, and logic circuitry to provide for the interruption of a local oscillator for a portion of each pulse of a radio frequency repetition cycle in order to isolate radar receiver/transmitter coupling and permit simultaneous radiometer use. | |
