Approximate figures measuring system

Details Approximate figures measuring system Approximate figures measuring system

1991-03-01

1993-05-11

Gregory, Bernarr E.

Pulse or digital communications

Repeaters

Testing

380 34, 342 27, 342189, 342192, 340933, H04L 2730

Patent

active

052107728

ABSTRACT:
An approximate figures measuring system includes a signal transmission device and a signal receiving device. The signal transmission device is arranged in each of any objects to be measured and emits a signal from which a peak can be generated at a receiving device in a predetermined period. The signal receiving device receives the signal transmitted from the signal transmission device and includes a peak detection circuit and a calculation circuit for obtaining an output corresponding to the number of the peaks of the signals from the objects.

REFERENCES:
patent: 3518674 (1970-06-01), Moorehead et al.
patent: 3714573 (1973-01-01), Grossman
patent: 4797675 (1989-01-01), Ovaska
patent: 4870663 (1989-09-01), Kulju et al.
"An Asynchronous Multi-Channel SSC Transceiver Using a Saw Convolver", IEICE, Japan; Mar. 22, 1989; SSTA89-9, pp. 59-66.
"Urban Information Service", J. IEE Japan; vol. 109, No. 2, 1989; pp. 119 through 126.
R. C. Dixon, Spread Spectrum Systems; (John Wiley & Sons; 1984; pp. 44-47).

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