US3593311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data recorder with single operator entry-verify control
Assignee: Momentum Systems Corp
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Filing: 1969-06-18
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Granted: 1971-07-13
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Expires: 1989-06-18
Abstract
Abstract A key-to-magnetic tape data recorder is provided with control logic which requires the operator to key-verify each block of data immediately after it has been key-entered into a buffer memory and prior to its recordation on tape. During an entry cycle each character that is entered into the buffer memory is compared with the character it is replacing and a set error control (EC) bit is loaded into a control memory for each unequal comparison. EC bit data is inspected during the following verify cycle and if a set EC bit is encountered during a duplication operation it triggers an error alarm. The control logic further operates to require reverification of any data entered during a verify cycle. EC bits are forced set for any such verify-entered data and are employed at the culmination of the verify cycle to automatically restore the buffer memory accessing circuits to the first verify-entered data character, enabling rapid and simple reverification.
Inventors
- 👤 Earl W Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:21
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/06; G06F3/0601; G06F11/00; G06F11/07; G06F11/16; G06F11/1608; G06F11/1616; G06F3/01; G06F3/02; G06F3/023; G06F3/0232; G06F3/0628; G06F3/0655; G06F3/0656
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
113 words
In a manual-entry data recorder, the combination comprising: a keyboard having data keys; a buffer memory having a plurality of character storage locations; a first storage register; means operable in response to actuation of one of said data keys for loading a data character into said first storage register; means for comparing the contents of said first storage register with the contents of a predetermined storage location in said buffer memory and for thereafter transferring the contents of said first storage register into said predetermined storage location of said buffer memory; a control memory; and means for loading a first predetermined data bit into said control memory in response to an unequal comparison.
Claim 2
Dependent Claim
113 words
In a manual-entry data recorder, the combination comprising: a keyboard having data keys; a buffer memory having a plurality of character storage locations; a first storage register; means operable in response to actuation of one of said data keys for loading a data character into said first storage register; means for comparing the contents of said first storage register with the contents of a predetermined storage location in said buffer memory and for thereafter transferring the contents of said first storage register into said predetermined storage location of said buffer memory; a control memory; and means for loading a first predetermined data bit into said control memory in response to an unequal comparison.
Claim 3
Dependent Claim
47 words
The data recorder set forth in claim 1 further comprising: selectively operable verification means for inhibiting said data transfer from said first storage register to said buffer memory, whereby the initial contents of said predetermined storage location are retained therein and are verified by said comparison operation.
Claim 4
Dependent Claim
68 words
The data recorder set forth in claim 2 wherein said verification means comprises: a second storage register; means for loading the initial contents of said predetermined storage location of said buffer memory into said second storage register for comparison with the contents of said first storage register; and means operable after said comparison for transferring the contents of said second storage register back into said predetermined storage location.
Claim 5
Dependent Claim
30 words
The data recorder set forth in claim 2 further comprising: automatic memory accessing means for addressing the next succeeding storage location in said buffer memory after each said comparison operation.
Claim 6
Dependent Claim
114 words
The data recorder set forth in claim 4 wherein said keyboard also contains special function keys and further comprising: duplication means operable in response to actuation of one of said special function keys during a time when said verification means is operable for causing said automatic memory accessing means to advance past a plurality of storage locations in said buffer memory; control means for scanning the data bits in said control memory corresponding to said storage locations in said buffer memory passed during operation of said duplication means and for generating a signal upon detection of a first predetermined data bit; and error means responsive to said signal for arresting said memory accessing means.
Claim 7
Dependent Claim
137 words
The data recorder set forth in claim 4 wherein said keyboard also contains special function keys and further comprising: skip means operable in response to actuation of one of said special function keys during a time when said verification means is operable for loading a predetermined data character into said first storage register and for causing said automatic memory accessing means to advance past a plurality of storage locations in said buffer memory, whereby the contents of each of said plurality of storage locations in said buffer memory are compared with said predetermined data character; error means responsive to an unequal comparison for arresting said memory accessing means; and control means for loading a second predetermined data bit into said control memory for each storage location in said buffer memory passed during operation of said skip mEans.
Claim 8
Dependent Claim
30 words
The data recorder set forth in claim 1 further comprising: automatic memory accessing means for addressing the next succeeding storage location in said buffer memory after each said transfer operation.
Claim 9
Dependent Claim
91 words
The data recorder set forth in claim 7 wherein said keyboard also contains special function keys and further comprising: duplication means operable in response to actuation of one of said special function keys for causing said automatic memory accessing means to advance past a plurality of storage locations in said buffer memory, whereby the contents of said storage locations remain unchanged; and control means for loading a second predetermined data bit into said control memory for each storage location in said buffer memory passed during the operation of said duplication means.
Claim 10
Dependent Claim
152 words
The data recorder set forth in claim 7 wherein said keyboard also contains special function keys and further comprising: skip means operable in response to actuation of one of said special function keys for loading a predetermined data character into said first storage register and for causing said automatic memory accessing means to advance past a plurality of storage locations in said buffer memory, whereby the contents of each of said plurality of storage locations in said buffer memory is compared with said predetermined data character; inhibit means operable during the operation of said skip means to inhibit said transfer operation, whereby the contents of said plurality of storage locations in said buffer memory remains unchanged; and control means for loading into said control memory a first predetermined data bit for each unequal comparison and a second predetermined data bit for each equal comparison that occurs during operation of said skip means.
Claim 11
Dependent Claim
102 words
In a manual-entry data recorder requiring manual verification of entered data prior to its recordation on a permanent record mediun, the combination comprising: a keyboard; a buffer memory having a plurality of character storage locations; means for entering a block of characters into said memory by actuation of keys on said keyboard; means operable after entry of said block for comparing the contents of successive memory locations with a succession of output signals from said keyboard to enable manual verification of said entered block of data; and a control memory for storing data bits representative of the results of said successive comparisons.
Claim 12
Dependent Claim
102 words
In a manual-entry data recorder requiring manual verification of entered data prior to its recordation on a permanent record mediun, the combination comprising: a keyboard; a buffer memory having a plurality of character storage locations; means for entering a block of characters into said memory by actuation of keys on said keyboard; means operable after entry of said block for comparing the contents of successive memory locations with a succession of output signals from said keyboard to enable manual verification of said entered block of data; and a control memory for storing data bits representative of the results of said successive comparisons.
Claim 13
Dependent Claim
78 words
The data recorder set forth in claim 10 further comprising: error control means operable in response to an unequal comparison during said verification operation for providing an error indication; manually actuatable correction means conditioned for actuation by said error indication for connecting said keyboard to said buffer memory to permit entry of data characters thereinto; and means for entering a predetermined data bit into said control memory for each data character entered during actuation of said correction means.
Claim 14
Dependent Claim
44 words
The data recorder set forth in claim 11 further comprising: means operable upon completion of verification of said block to automatically access the buffer memory storage location associated with the first said predetermined data bit entered into said control memory during said verification operation.
Claim 15
Dependent Claim
71 words
The data recorder set forth in claim 12 further comprising: output means for transferring the contents of said buffer memory to an external utilization means for recordation on a permanent record medium; release means for enabling manual initiation of the operation of said output means on completion of said verification operation; and blocking means operable in response to actuation of said correction means for blocking the operation of said release means.
Claim 16
Dependent Claim
42 words
The data recorder set forth in claim 13 further comprising: reverification means operable in response to operation of said blocking means for requiring reverification of said block of Data; and means operable upon completion of said reverification to disable said blocking means.
Claim 17
Dependent Claim
153 words
A data recorder comprising: a keyboard having data keys and a release key; a buffer memory; recordation means operable in response to actuation of said release key to record the contents of said buffer memory on a record medium; entry means constructed and arranged to load a block of data characters into said memory in response to actuation of one or more of said data keys and for simultaneously comparing the previous contents of said memory with said block of data characters; verify means conditioned for operation upon completion of said memory loading operation and constructed and arranged to compare the data in said memory with data represented by actuation of one or more of said data keys; and means for blocking the operation of said release key during operation of said entry means and said verify means and for unblocking said release key upon completion of the operation of said verify means.
Claim 18
Dependent Claim
153 words
A data recorder comprising: a keyboard having data keys and a release key; a buffer memory; recordation means operable in response to actuation of said release key to record the contents of said buffer memory on a record medium; entry means constructed and arranged to load a block of data characters into said memory in response to actuation of one or more of said data keys and for simultaneously comparing the previous contents of said memory with said block of data characters; verify means conditioned for operation upon completion of said memory loading operation and constructed and arranged to compare the data in said memory with data represented by actuation of one or more of said data keys; and means for blocking the operation of said release key during operation of said entry means and said verify means and for unblocking said release key upon completion of the operation of said verify means.
Claim 19
Dependent Claim
46 words
The data recorder set forth in claim 15 further comprising: means for inhibiting the unblocking of said release key in response to an unequal comparison; and means for disabling said inhibiting means in response to an equal comparison upon a retry of said unequal comparison operation.
Claim 20
Dependent Claim
77 words
The data recorder set forth in claim 15 further comprising: modification means conditioned for manual actuation during an unsuccessful verification cycle by occurrence of an unequal comparison for loading one or more data characters into said buffer memory; means operable in response to manual actuation of said modification means for inhibiting the unblocking of said release key; and means for disabling said inhibiting means after verification of the data characters loaded during operation of said modification means.
Claim 21
Dependent Claim
149 words
In a manual-entry data recorder the combination comprising: a keyboard; a buffer memory; output means for recording data stored in said buffer memory on a record medium; entry means for loading data into said memory in response to actuation of keys on said keyboard; verify means for comparing data stored in said memory with data represented by the actuation of keys on said keyboard; interlock means for controlling the operation of said verify means and said output means to require the operation of the former as a condition to the operation of the latter; and duplication control means operable during operation of said verify means to provide an error indication in response to detection of data entered into said memory during the last preceding operation of said entry means which is not identical to data entered during an operation of said entry means previous to said last preceding operation.
Claim 22
Dependent Claim
149 words
In a manual-entry data recorder the combination comprising: a keyboard; a buffer memory; output means for recording data stored in said buffer memory on a record medium; entry means for loading data into said memory in response to actuation of keys on said keyboard; verify means for comparing data stored in said memory with data represented by the actuation of keys on said keyboard; interlock means for controlling the operation of said verify means and said output means to require the operation of the former as a condition to the operation of the latter; and duplication control means operable during operation of said verify means to provide an error indication in response to detection of data entered into said memory during the last preceding operation of said entry means which is not identical to data entered during an operation of said entry means previous to said last preceding operation.
Claim 23
Dependent Claim
131 words
In a manual-entry data recorder the combination comprising: a keyboard; a buffer memory; output means for recording data stored in said buffer memory on a record medium; entry means for loading data into said memory in response to actuation of keys on said keyboard; verify means for comparing data stored in said memory with data represented by the actuation of keys on said keyboard; interlock means for controlling the operation of said verify means and said output means to require the operation of the former as a condition to the operation of the latter; and skip control means operable during operation of said verify means to automatically compare selected data characters in said memory with a predetermined character code and to provide an error indication in response to an unequal comparison.
Claim 24
Dependent Claim
131 words
In a manual-entry data recorder the combination comprising: a keyboard; a buffer memory; output means for recording data stored in said buffer memory on a record medium; entry means for loading data into said memory in response to actuation of keys on said keyboard; verify means for comparing data stored in said memory with data represented by the actuation of keys on said keyboard; interlock means for controlling the operation of said verify means and said output means to require the operation of the former as a condition to the operation of the latter; and skip control means operable during operation of said verify means to automatically compare selected data characters in said memory with a predetermined character code and to provide an error indication in response to an unequal comparison.
Claim 25
Dependent Claim
19 words
The data recorder set forth in claim 19 wherein said predetermined character code is representative of a space character.
References Cited (Backward Citations)
US3071753A
Cited
US3275995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |