Registers – Platform operated – Platform actuated traffic counters
Patent
1976-04-02
1977-07-19
Thesz, Joseph M.
Registers
Platform operated
Platform actuated traffic counters
235 92MS, 235 92EV, 235 92R, 328 48, H03K 2136, G06M 314
Patent
active
040364313
ABSTRACT:
During the use of a counter which provides an output indicating a numeric value corresponding to the number of pulses received at a terminal of the counter and which will count either up or down dependent upon a signal at another terminal of the counter, it is frequently necessary to set the counter at the start of a counting operation so that the output of the counter indicates a specific number. Such a counter can be set so as to indicate such a number through the use of a single switch. When the switch is closed a short time interval a single pulse is applied to the first terminal of the counter. When the switch is held closed for a longer time period a signal is applied to the other terminal of the counter so as to control the direction of the counting operation and a series of pulses is supplied to the first terminal of the counter. The switch will be held closed until the counter output indicates either a desired numeric value or a number in excess of this value. If the output indicates a number in excess of this desired value the swich may be closed and opened for successive short time intervals until the specific desired numeric value is indicated by the counter output.
REFERENCES:
patent: 3665323 (1972-05-01), Peterson
patent: 3764783 (1973-10-01), Terry et al.
patent: 3843873 (1974-10-01), Beville et al.
patent: 3962565 (1976-06-01), Guyen-Phuoc
patent: 3968401 (1976-07-01), Bryant
O'Brian Edward D.
Thesz Joseph M.
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