Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1994-11-15
1996-05-07
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
367903, G01S 1500
Patent
active
055153399
ABSTRACT:
Intervals of timing pulses generated by a timing pulse generating means are changed by an interval changing means, interference signals from a second vibrator having the same intervals of the timing pulses being eliminated by changing the interval of the timing pulses by the interval changing means.
REFERENCES:
patent: 4490716 (1984-12-01), Tsuda et al.
Honda Electronic Co., Ltd.
Pihulic Daniel T.
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