US3757298A
Expired / Lapsed
US
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Decimal limit set for a binary digital signal comparison
Assignee: Warner and Swasey Co
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Filing: 1972-08-14
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Granted: 1973-09-04
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Expires: 1992-08-14
Abstract
Abstract An arrangement for providing an indication when the value of a varying binary digital signal is less than or greater than selectively set lower and upper decimal limits respectively. The arrangement includes a digital counter which is cyclically counted up, the contents of the counter being continuously read in binary form into a pair of one-of-eight converters, the outputs of which are in turn read into a switching matrix. The switching matrix outputs a signal state whenever the converter outputs equal either of a pair of decimal values set on a respective pair of switching matrix sliders corresponding to an upper and lower limit respectively. This signal state is used in conjunction with logic circuitry to gate the ''''less than'''' and ''''greater than'''' outputs of a comparator in which the counter contents and the varying binary digital signal are compared so that the comparator output signal is gated out to an indicator driver circuit whenever the counter contents equal either of the upper or lower limits set by the pair of switching matrix sliders. This gating is controlled by the logic circuitry so that the ''''less than'''' output is gated when the counter contents equals the set lower limit and the ''''greater than'''' output gated when the counter contents equals the set upper limit to provide an output signal whenever the varying binary digital signal either declines below the set lower limit or increases above the upper limit.
Inventors
- 👤 G Tumbush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:55
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/02; G06F7/026
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
191 words
An arrangement for producing an output signal when a binary digital signal equals a selectively set corresponding decimal value comprising: at least two octal converter means, each receiving three successive orders of said varying binary digital signal and each outputting an output signal on one of eight outputs for each binary digital signal represented by said three successive orders of said binary digital signal; at least two series of contacts, each of said contacts in each of said series connected to an output of a respective octal converter means associated with each series of contacts; slider contact means selectively movable to successively connect contacts of one series of said at least two series of contacts to contacts in another of said at least two series of contacts; slider output means operatively associated with said slider contact means producing an output signal whenever both of said output signals of said respective octal converter means outputs connected by said movable slider contact means and said series of contacts are present, whereby said slider output means signal provides an indication when said binary digital signal equals a value corresponding to a single decimal value.
Claim 2
Dependent Claim
191 words
An arrangement for producing an output signal when a binary digital signal equals a selectively set corresponding decimal value comprising: at least two octal converter means, each receiving three successive orders of said varying binary digital signal and each outputting an output signal on one of eight outputs for each binary digital signal represented by said three successive orders of said binary digital signal; at least two series of contacts, each of said contacts in each of said series connected to an output of a respective octal converter means associated with each series of contacts; slider contact means selectively movable to successively connect contacts of one series of said at least two series of contacts to contacts in another of said at least two series of contacts; slider output means operatively associated with said slider contact means producing an output signal whenever both of said output signals of said respective octal converter means outputs connected by said movable slider contact means and said series of contacts are present, whereby said slider output means signal provides an indication when said binary digital signal equals a value corresponding to a single decimal value.
Claim 3
Dependent Claim
131 words
The arrangement of claim 1 wherein said contact series are disposed opposite each other and are connected to the outputs of said octal converter means so that successive positions of said slider contact means connecting said contacts correspond to successive decimal values, in which arrangement successive groupings of the contacts of one of said at least two series are each connected to a single output of one of said octal converter means which receives the higher orders of said binary digital signal and in which the opposing contacts in another of said at least two series of contacts are connected to successive outputs of another octal converter means which receives a lower three successive orders of said binary digital signal than that received by said one of said octal converter means.
Claim 4
Dependent Claim
112 words
THe arrangement of claim 1 further including a second slider contact means selectively movable to successively connect contacts of one series of said at least two series of contacts to contacts in another series of said at least two series of contacts and a second slider output means operatively associated with said second slider contact means producing an output signal whenever both of said output signals of said respective octal converter means outputs connected by said movable slider contact means and said series of contacts are present, whereby said second slider output means signal provides an indication when said binary digital signal equals a value corresponding to a single second decimal value.
Claim 5
Dependent Claim
37 words
The arrangement of claim 1 wherein said at least two series of contacts comprises a pair of linearly disposed opposed contact series, and wherein said slider contact means connects opposed contacts of said pair of contact series.
Claim 6
Dependent Claim
261 words
An arrangement for comparing a varying binary digital signal with a selectively set decimal value comprising: a pulse source; counter means providing a cyclical binary digital count up of pulses received from said pulse source; means for producing an output signal when said binary digital signal count reaches a selectively set corresponding decimal value including: at least two octal converter means, each receiving three successive orders of said varying binary digital signal and each outputting an output signal on one of eight outputs for each binary digital signal represented by said three successive orders of said binary digital signal; at least two series of contacts, each of said contacts in each of said series connected to an output of a respective octal converter means associated with each series of contacts; slider contact means selectively movable to successively connect contacts of one series of said at least two series of contacts to contacts in another series of said at least two series of contacts; slider output means operatively associated with said slider contact means producing an output signal whenever both of said output signals of said respective octal converter means outputs connected by said movable slider contact means and said series of contacts are present; comparator means receiving said varying binary digital signal and said binary digital count and comparing said signal and said count whenever said slider output means produces said output signal and providing a comparator output signal indicative of the results of said comparison, whereby said varying binary digital signal is compared with said selectively set corresponding decimal value.
Claim 7
Dependent Claim
261 words
An arrangement for comparing a varying binary digital signal with a selectively set decimal value comprising: a pulse source; counter means providing a cyclical binary digital count up of pulses received from said pulse source; means for producing an output signal when said binary digital signal count reaches a selectively set corresponding decimal value including: at least two octal converter means, each receiving three successive orders of said varying binary digital signal and each outputting an output signal on one of eight outputs for each binary digital signal represented by said three successive orders of said binary digital signal; at least two series of contacts, each of said contacts in each of said series connected to an output of a respective octal converter means associated with each series of contacts; slider contact means selectively movable to successively connect contacts of one series of said at least two series of contacts to contacts in another series of said at least two series of contacts; slider output means operatively associated with said slider contact means producing an output signal whenever both of said output signals of said respective octal converter means outputs connected by said movable slider contact means and said series of contacts are present; comparator means receiving said varying binary digital signal and said binary digital count and comparing said signal and said count whenever said slider output means produces said output signal and providing a comparator output signal indicative of the results of said comparison, whereby said varying binary digital signal is compared with said selectively set corresponding decimal value.
Claim 8
Dependent Claim
133 words
The arrangement of claim 5 wherein said at least two contact series are disposed opposite each other and are connected to the outputs of said octal converter means so that successive positions of said slider contact means connecting said contacts corresponds to successive decimal values, in which successive groupings of the contacts of one of said at least two series are each connected to a single output of one of said octal converter means which receives the higher orders of said binary digital signal and in which the opposing contacts in another of said at least two series of contacts are connected to successive outputs of another octal converter means which receives a lower three successive orders of said binary digital signal than that received by said one of said octal converter means.
Claim 9
Dependent Claim
103 words
The arrangement of claim 5 further including a second slider contact means selectively movable to successively connect contacts of one series of said at least two series of contacts to contacts in another series of said at least two series of contacts and a second slider output means operatively associated with said second slider contact means producing an output signal whenever both of said output signals of said respective octal converter means outputs connected by said movable contact series are present, and wherein said comparator means compares said count and said signal whenever either of said slider output means produces an output signal.
Claim 10
Dependent Claim
91 words
The arrangement of claim 7 wherein said comparator means includes means producing an output signal whenever said binary digital signal is higher than said count corresponding to the higher decimal value set of said slider contact means and also includes means producing an output signal whenever said binary digital signal is less than said count corresponding to the decimal value set by the other of said slider contact means, whereby an output signal is produced whenever said binary digital signal value goes outside the range defined by said set decimal values.
Claim 11
Dependent Claim
37 words
The arrangement of claim 5 wherein said at least two contact series comprises a pair of opposed, linearly disposed series of contacts, and wherein said slider contact means connects opposed contacts of said pair of contact series.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |