US3862407A
Expired / Lapsed
US
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Decimal to binary converter
Assignee: United States Department of the Navy
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Filing: 1970-12-23
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Granted: 1975-01-21
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Expires: 1990-12-23
Abstract
Abstract A decimal to binary converter which sequentially generates a train of pulses equal in number to each digit, of the decimal number to be converted, multiplied by its respective power of 10. These trains of pulses are then counted by a binary counter, the binary output of which is equivalent to the decimal input.
Inventors
- 👤 Richard K Baldauf
- 👤 Lawrence M Leibowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:49
CPC Classifications
H; H03; H03M; H03M7/00; H03M7/02; H03M7/06; H03M7/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
132 words
A decimal number to natural binary number converter comprising: input means for sequentially entering a decimal number to be converted; means coupled to said input means for generating sequential trains of pulses the number of pulses in each of said trains of pulses being equivalent to one of the decimal digits of said decimal number, said generating means including at least two pulse generators whose output frequencies are related by a decimal multiple of ten and the output of each of said pulse generators being representative of a different significant digit of said decimal number; binary adding means coupled to said generating means for totaling all the pulses in each of said trains of pulses, wherein the totaled number is the binary equivalent to said decimal number entered into said input means.
Claim 2
Dependent Claim
132 words
A decimal number to natural binary number converter comprising: input means for sequentially entering a decimal number to be converted; means coupled to said input means for generating sequential trains of pulses the number of pulses in each of said trains of pulses being equivalent to one of the decimal digits of said decimal number, said generating means including at least two pulse generators whose output frequencies are related by a decimal multiple of ten and the output of each of said pulse generators being representative of a different significant digit of said decimal number; binary adding means coupled to said generating means for totaling all the pulses in each of said trains of pulses, wherein the totaled number is the binary equivalent to said decimal number entered into said input means.
Claim 3
Dependent Claim
34 words
The converter of claim 1 wherein logic means is employed to sequentially control said generators so that only the output of one generator is coupled to said binary adding means at any one time.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |