Patent US1925909A successfully refreshed from Google Patents.
Patent US3832733A successfully refreshed from Google Patents.
US3832733A
Expired / Lapsed
US
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Manual input recordation of data and complement
Assignee: TELEWAVE SYST Inc
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Filing: 1973-09-12
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Granted: 1974-08-27
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Expires: 1993-09-12
Abstract
Abstract A recording mechanism and method for providing data and data signals representative of the depression or non-depression of a plurality of keys of a keyboard of a shorthand machine, said mechanism including means for detecting and storing in parallel information representing the depression or non-depression of said keys, means for sensing the completion of a stroke of said keys and means responsive to the sensing of the end of the stroke to serially shift out the stored parallel information to generate and record data and data signals on a movable recording media.
Inventors
- 👤 B Eldridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:54
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/44; B41J3/50
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
190 words
A method of recording data representing the depression or non-depression of a plurality of keys of a keyboard of a shorthand machine by a user on a stroke by stroke basis, each stroke representing a word or part of a word said method comprising detecting and storing in parallel, information representing the depression or non-depression of a plurality of keys of a keyboard of a shorthand machine during the stroke by a user thereof, detecting when all the keys have been released by the user thereof upon completion of a stroke, transferring the information in parallel into a shift register after detecting when all keys have been released by the user upon completion of a stroke, generating shift signals to cause said shift register to serially shift out the information stored therein after the information has been transferred in parallel into the shift register, developing data and data signals from the information in the shift register, generating signal means to move a recording media to record the data and data signals being developed for recording, and recording the data and data signals on two different tracks of the recording media.
Claim 2
Independent Claim
190 words
A method of recording data representing the depression or non-depression of a plurality of keys of a keyboard of a shorthand machine by a user on a stroke by stroke basis, each stroke representing a word or part of a word said method comprising detecting and storing in parallel, information representing the depression or non-depression of a plurality of keys of a keyboard of a shorthand machine during the stroke by a user thereof, detecting when all the keys have been released by the user thereof upon completion of a stroke, transferring the information in parallel into a shift register after detecting when all keys have been released by the user upon completion of a stroke, generating shift signals to cause said shift register to serially shift out the information stored therein after the information has been transferred in parallel into the shift register, developing data and data signals from the information in the shift register, generating signal means to move a recording media to record the data and data signals being developed for recording, and recording the data and data signals on two different tracks of the recording media.
Claim 3
Dependent Claim
31 words
A method according to claim 1 in which either a data or a data signal bit but not both is recorded for a plurality of increments of the recording media movement.
Claim 4
Dependent Claim
35 words
A method according to claim 2 in which parity signals or bits representing a logical one are recorded simultaneously on both data and data channels for a plurality of increments of the recording media movement.
Claim 5
Dependent Claim
22 words
A method according to claim 3 in which the total number of signal bits applied in each channel is an even number.
Claim 6
Dependent Claim
27 words
A method according to claim 1 in which the recording media is stepped in a timed sequence with the development of the data and data signal bits.
Claim 7
Dependent Claim
30 words
A method according to claim 1 in which the input data comprises a group of bits whose logical state of either 1 or 0 indicates the key depression or non-depression.
Claim 8
Dependent Claim
31 words
A method according to claim 1 in which the recording media is stepped a predetermined number of increments of space prior to the recording of data and data bits thereon. Pg,27
Claim 9
Dependent Claim
15 words
The method of claim 1 in which the recording media is a magnetic recording media.
Claim 10
Dependent Claim
159 words
A recording mechanism comprising a keyboard of a shorthand machine having a plurality of depressible keys, means for detecting and then storing one or more signals in parallel representing the depression of one or more keys of the keyboard after at least one key has been depressed, detecting when all keys have been released, means for transferring one or more data signals in parallel and storing the same in parallel in a shift register after the release of all keys have been detected, means for serially shifting the data signals out of said shift register after the data has been stored therein, means for generating data and data signal pulses from said data signals, a recording media for recording said generated data and data signal pulses, and means for moving said recording media to record said data and data signal pulses, said data signal representing the depression or non-depression of each of said plurality of keys of said keyboard.
Claim 11
Dependent Claim
159 words
A recording mechanism comprising a keyboard of a shorthand machine having a plurality of depressible keys, means for detecting and then storing one or more signals in parallel representing the depression of one or more keys of the keyboard after at least one key has been depressed, detecting when all keys have been released, means for transferring one or more data signals in parallel and storing the same in parallel in a shift register after the release of all keys have been detected, means for serially shifting the data signals out of said shift register after the data has been stored therein, means for generating data and data signal pulses from said data signals, a recording media for recording said generated data and data signal pulses, and means for moving said recording media to record said data and data signal pulses, said data signal representing the depression or non-depression of each of said plurality of keys of said keyboard.
Claim 12
Dependent Claim
22 words
A recording mechanism according to claim 9 in which said recording media is sequentially incremented while recording the pulses on said tracks.
Claim 13
Dependent Claim
17 words
A recording mechanism according to claim 10 in which the recording media comprises a magnetic recording media.
Claim 14
Dependent Claim
21 words
A recording mechanism according to claim 11 in which the recording media comprises a magnetic tape having at least two tracks.
Claim 15
Dependent Claim
22 words
A recording mechanism according to claim 9 in which the plurality of keys control a plurality of switches to detect key depression.
Claim 16
Dependent Claim
32 words
A recording mechanism according to claim 13 in which means is provided for stepping the recording media in increments to record data and data on the two tracks of the recording media.
Claim 17
Dependent Claim
29 words
A recording mechanism according to claim 14 including means for incrementing the recording media a predetermined number of increments prior to recording data and data on the recording media.
Claim 18
Dependent Claim
19 words
A recording mechanism according to claim 15 in which the recording media comprises a magnetic tape having two tracks.
Claim 19
Dependent Claim
24 words
A recording mechanism according to claim 9 in which parity signals are developed and recorded on both of the tracks of the recording media.
Claim 20
Dependent Claim
25 words
A mechanism according to claim 9 in which the pulses are applied to one but not both of the two tracks of the recording media.
Claim 21
Dependent Claim
17 words
A mechanism according to claim 18 in which the pulses represent logical ones or changes in flux.
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |