Time domain radio transmission system
Patent 5363108 Issued on November 8, 1994. Estimated Expiration Date: 
March 5, 2012. 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.
March 5, 2012. 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 2517951 3662316 3739392 InventorAssigneeApplicationNo. 846597 filed on 03/05/1992US Classes:342/27, PRESENCE DETECTION ONLY342/21, BASE BAND SYSTEM375/130, SPREAD SPECTRUM375/256, PULSE TRANSMISSION VIA RADIATED BASEBAND380/34Plural carrier frequenciesExaminersPrimary: Gregory, Bernarr E.Attorney, Agent or FirmInternational ClassesG01S 013/04H04L 027/30 AbstractA time domain communications system wherein a broadband of time-spaced signals, essentially monocycle-like signals, are derived from applying stepped-in-amplitude signals to a broadband antenna, in this case, a reverse bicone antenna. When received, the thus transmitted signals are multiplied by a D.C. replica of each transmitted signal, and thereafter, they are, successively, short time and long time integrated to achieve detection.Other References
Field of SearchBASE BAND SYSTEMTRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE PRESENCE DETECTION ONLY By motion detection DETERMINING DISTANCE Altimeter Phase comparison With pulse modulation (e.g., "Chirp") With pulse modulation With correlation Combined with pulse modulation Plural carrier frequencies | |
