Boots – shoes – and leggings
Patent
1985-12-02
1989-10-24
Lall, Parshotam S.
Boots, shoes, and leggings
364555, 346146, 324 77A, 382 18, G06F 1574, G01D 900, G06K 946
Patent
active
048766550
ABSTRACT:
The distribution with respect to time of an event defined by the waveform of a repetitive input signal having a magnitude that lies within a predetermined range of values is observed by generating a sample signal at least once during each repetition of the input signal, generating an n-bit digital timing signal representative of the time of occurrence of a sample signal relative to the time of occurrence of the trigger signal, and sampling the repetitive input signal and generating a memory enable signal in the event that the magnitude of the input signal at the time of sampling falls within the predetermined range of values. The memory locations of a memory having 2.sup.n separately addressable memory locations are allocated respectively to the 2.sup.n possible values of the timing signal, and the contents of a memory location of the memory means are incremented by one unit in the event that a memory enable signal is generated in response to a sample signal that is associated with the timing signal to which the location is allocated.
REFERENCES:
patent: 3360723 (1967-12-01), Royce
patent: 3465247 (1969-09-01), Kubo
patent: 3657646 (1972-04-01), Zmyslowski et al.
patent: 4373193 (1983-02-01), Haag et al.
patent: 4495585 (1985-01-01), Buckley
patent: 4606065 (1986-08-01), Beg et al.
Baker Clifford E.
Carlton Dale E.
Henricksen Ronald M.
Juffernbruch Daniel W.
Lall Parshotam S.
Smith-Hill John
Tektronix Inc.
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