Communications: electrical – Continuously variable indicating – With meter reading
Patent
1988-04-26
1989-01-31
Weldon, Ulysses
Communications: electrical
Continuously variable indicating
With meter reading
34082531, 379 62, H04R 100
Patent
active
048019356
ABSTRACT:
An apparatus and method having elements and steps selected and arranged to require a timed, coded input for authenticating a code of characters in a set sequence for authorizing user access and having means for emitting a signal or alarm, wherein the system is initialized so as to require matching of representative signals at inhibiting control circuits having an on-state and an off-state so that characters entered sequentially in timed cycles are authenticated as a correct member of a code set in a correct time cycle or disqualified as an unauthentic character.
An authentic character is a certain designated character entered in the selected time cycle.
REFERENCES:
patent: 3321673 (1967-05-01), Wolfe
patent: 3609690 (1971-09-01), Nissmann et al.
patent: 3740330 (1973-06-01), Hoffer et al.
patent: 3831065 (1974-08-01), Martin et al.
patent: 4012982 (1977-03-01), Southard
patent: 4103289 (1978-07-01), Kolber
patent: 4139864 (1979-02-01), Schulman
patent: 4262337 (1981-04-01), Jones
patent: 4267578 (1981-05-01), Vetter
patent: 4428024 (1984-06-01), Mochida et al.
patent: 4430728 (1984-02-01), Beitel et al.
patent: 4494114 (1985-01-01), Kaish
Computer Security Corporation
Weldon Ulysses
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