Boots – shoes – and leggings
Patent
1984-07-19
1987-03-31
Krass, Errol A.
Boots, shoes, and leggings
342174, G01F 2500, G01S 740
Patent
active
046548106
ABSTRACT:
The time required for several calibration signals to traverse a signal path (1, 2, 3) is determined and compared with a nominal value. The individual calibration signals have different values for at least one signal parameter. Depending on the results of the comparison, a control signal is produced for each value of the signal parameter. Of the intelligence signal, the value of the signal parameter to be taken into account in the determination of the control signal is measured prior to the traversal of the signal path, and the control signal assigned to this value is selected.
The control signal can be used in DME transponders to set an exact transponder delay, and in DME interrogators to allow for delay variations in the distance measurement.
REFERENCES:
patent: 3513470 (1970-05-01), Rabow
patent: 4099240 (1978-07-01), Rode et al.
patent: 4138678 (1979-02-01), Kirner
patent: 4303983 (1981-12-01), Chaborski
patent: 4364027 (1982-12-01), Murooka
patent: 4494118 (1985-01-01), Graves
patent: 4532516 (1985-07-01), Frampton et al.
IBM Tech. Disc. Bulletin; vol. 21, No. 2 (Jul. 1978); "Automatic Transponder Calibration in DME Ranging Systems", D. R. Prunty, pp. 546-551.
Becker Klaus
Muller Albrecht
International Standard Electric Corporation
Krass Errol A.
O'Halloran John T.
Seitter Robert P.
Teska Kevin J.
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