US3845280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital computer and form reader for inventory control and recording cash transactions
Assignee: TRW Data Systems Inc
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Filing: 1973-02-16
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Granted: 1974-10-29
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Expires: 1993-02-16
Abstract
Abstract A digital computer employing hard wired control logic and a rotating memory drum system for inventory control, price changes and cash transactions. If desired, a novel form reader may be employed in conjunction with the computer to sense transactions and, in conjunction with the form itself, to actuate the computer at appropriate times. The computer and form reader are particularly suited for use in eating establishments where transaction speed is required.
Inventors
- 👤 N Dillon
- 👤 B Sincich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:55
CPC Classifications
G; G06; G06K; G06K17/00; G07; G07G; G07G1/00; G07G1/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
149 words
A method for sensing transaction data and recording the data on an input-output form bearing a plurality of clock lines adjacent a row of data blocks and in the memory of a digital computer comprising the steps of: feeding the form containing the data into a form reader; scanning a row of blocks adjacent the clock line for quantity of an item or price data until a data mark corresponding to a clock line is sensed; stopping the form for a time interval; storing sensed data in the Memory; continuing the form feeding until succeeding clock lines and data marks have been sensed; repeating the scan, stop and data storage for each succeeding row of blocks corresponding to a clock line until all the data have been sensed; calculating quantity x price and storing the results of the transaction in the memory; and recording the data on the form.
Claim 2
Independent Claim
149 words
A method for sensing transaction data and recording the data on an input-output form bearing a plurality of clock lines adjacent a row of data blocks and in the memory of a digital computer comprising the steps of: feeding the form containing the data into a form reader; scanning a row of blocks adjacent the clock line for quantity of an item or price data until a data mark corresponding to a clock line is sensed; stopping the form for a time interval; storing sensed data in the Memory; continuing the form feeding until succeeding clock lines and data marks have been sensed; repeating the scan, stop and data storage for each succeeding row of blocks corresponding to a clock line until all the data have been sensed; calculating quantity x price and storing the results of the transaction in the memory; and recording the data on the form.
Claim 3
Dependent Claim
17 words
The method of claim 1 in which data stored in the memory is updated by each transaction.
Claim 4
Dependent Claim
21 words
The method of claim 1 in which the data from the blocks is printed onto the form during the time interval.
Claim 5
Independent Claim
156 words
A method for sensing transaction data and recording the data on an input-output form bearing a plurality of clock lines adjacent a row of data blocks and in the memory of a digital computer comprising the steps of: feeding the form containing the data into a form reader; scanning a row of blocks adjacent the clock line for quantity of an item or price data until a data mark corresponding to a clock line is sensed; stopping the form for a time interval; storing sensed data in the memory; continuing the form feeding until succeeding clock lines and data marks have been sensed; repeating the scan, stop and data storage for each succeeding row of blocks corresponding to a clock line until all the data have been sensed; calculating quantity of an item price and quantity x price and storing the results of the transaction in the the memory; and recording the data on the form.
Claim 6
Independent Claim
156 words
A method for sensing transaction data and recording the data on an input-output form bearing a plurality of clock lines adjacent a row of data blocks and in the memory of a digital computer comprising the steps of: feeding the form containing the data into a form reader; scanning a row of blocks adjacent the clock line for quantity of an item or price data until a data mark corresponding to a clock line is sensed; stopping the form for a time interval; storing sensed data in the memory; continuing the form feeding until succeeding clock lines and data marks have been sensed; repeating the scan, stop and data storage for each succeeding row of blocks corresponding to a clock line until all the data have been sensed; calculating quantity of an item price and quantity x price and storing the results of the transaction in the the memory; and recording the data on the form.
Claim 7
Dependent Claim
17 words
The method of claim 4 in which data stored in the memory is updated by each transaction.
Claim 8
Dependent Claim
21 words
The method of claim 4 in which the data from the blocks is printed onto the form during the time interval.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |