US3077303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data converter
Assignee: PACKARD BELL COMP CORP
•
Filing: 1958-05-26
•
Granted: 1963-02-12
•
Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Palevsky Max
- 👤 Robert M Beck
- 👤 George J Giel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:06
CPC Classifications
G; G06; G06J; G06J1/00; H; H03; H03M; H03M1/00; H03M1/12; H03M1/14; H03M1/145; H03M1/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
248 words
IN COMBINATION FOR PROVIDING A CONVERSION BETWEEN DIGITAL AND ANALOGUE REPRESENTATIONS, A PLURALITY OF SWITCHING MEANS EACH NORMALLY OPERATIVE IN A FIRST RELATIONSHIP AND EACH CAPABLE OF BEING CONVERTED TO A SECOND OPERATIVE RELATIONSHIP IN ACCORDANCE WITH THE INTRODUCTION OF DIGITAL INFORMATION TO THE SWITCHING MEANS, MEANS FOR PROVIDING AN INTRODUCTION OF DIGITAL INFORMATION TO THE SWITCHING MEANS TO OBTAIN A PATTERN OF OPERATION OF THE SWITCHING MEANS IN ACCORDANCE WITH THE DIGITAL INFORMATION, MEANS FOR PROVIDING A REFERENCE VOLTAGE BETWEEN FIRST AND SECOND TERMINALS, A PLURALITY OF IMPEDANCES EACH CONNECTED AT ONE TERMINAL TO A DIFFERENT ONE OF THE SWITCHING MEANS AND PROVIDED WITH A COMMON CONNECTION AT THE OTHER TERMINAL FOR A COUPLING OF THE FIRST TERMINAL OF EACH IMPEDANCE TO THE FIRST TERMINAL OF THE VOLTAGE MEANS IN THE FIRST OPERATIVE RELATIONSHIP OF THE ASSOCIATED SWITCHING MEANS AND FOR A COUPLING OF THE FIRST TERMINAL OF EACH IMPEDANCE TO THE SECOND TERMINAL OF THE VOLTAGE MEANS IN THE SECOND OPERATIVE RELATIONSHIP OF THE ASSOCIATED SWITCHING MEANS AND EACH PROVIDED WITH A VALUE GEOMETRICALLY RELATED TO THE VALUES OF THE OTHER IMPEDANCES TO OBTAIN THE PRODUCTION AT THE COMMON TERMINAL OF AN OUTPUT POTENTIAL RELATED TO THE DIGITAL INPUTS TO THE SWITCHING MEANS, AND AN IMPEDANCE CONNECTED BETWEEN THE COMMON TERMINAL AND THE FIRST TERMINAL OF THE VOLTAGE MEANS AND PROVIDED WITH A VALUE CORRESPONDING TO THAT OF A PARTICULAR ONE OF THE IMPEDANCES IN THE PLURALITY TO LIMIT THE OUTPUT POTENTIAL ON THE COMMON TERMINAL.
Claim 2
Dependent Claim
248 words
IN COMBINATION FOR PROVIDING A CONVERSION BETWEEN DIGITAL AND ANALOGUE REPRESENTATIONS, A PLURALITY OF SWITCHING MEANS EACH NORMALLY OPERATIVE IN A FIRST RELATIONSHIP AND EACH CAPABLE OF BEING CONVERTED TO A SECOND OPERATIVE RELATIONSHIP IN ACCORDANCE WITH THE INTRODUCTION OF DIGITAL INFORMATION TO THE SWITCHING MEANS, MEANS FOR PROVIDING AN INTRODUCTION OF DIGITAL INFORMATION TO THE SWITCHING MEANS TO OBTAIN A PATTERN OF OPERATION OF THE SWITCHING MEANS IN ACCORDANCE WITH THE DIGITAL INFORMATION, MEANS FOR PROVIDING A REFERENCE VOLTAGE BETWEEN FIRST AND SECOND TERMINALS, A PLURALITY OF IMPEDANCES EACH CONNECTED AT ONE TERMINAL TO A DIFFERENT ONE OF THE SWITCHING MEANS AND PROVIDED WITH A COMMON CONNECTION AT THE OTHER TERMINAL FOR A COUPLING OF THE FIRST TERMINAL OF EACH IMPEDANCE TO THE FIRST TERMINAL OF THE VOLTAGE MEANS IN THE FIRST OPERATIVE RELATIONSHIP OF THE ASSOCIATED SWITCHING MEANS AND FOR A COUPLING OF THE FIRST TERMINAL OF EACH IMPEDANCE TO THE SECOND TERMINAL OF THE VOLTAGE MEANS IN THE SECOND OPERATIVE RELATIONSHIP OF THE ASSOCIATED SWITCHING MEANS AND EACH PROVIDED WITH A VALUE GEOMETRICALLY RELATED TO THE VALUES OF THE OTHER IMPEDANCES TO OBTAIN THE PRODUCTION AT THE COMMON TERMINAL OF AN OUTPUT POTENTIAL RELATED TO THE DIGITAL INPUTS TO THE SWITCHING MEANS, AND AN IMPEDANCE CONNECTED BETWEEN THE COMMON TERMINAL AND THE FIRST TERMINAL OF THE VOLTAGE MEANS AND PROVIDED WITH A VALUE CORRESPONDING TO THAT OF A PARTICULAR ONE OF THE IMPEDANCES IN THE PLURALITY TO LIMIT THE OUTPUT POTENTIAL ON THE COMMON TERMINAL.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |