US4101903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for monitoring bcd continuously varying data
Assignee: Boeing North American Inc
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Filing: 1976-08-02
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Granted: 1978-07-18
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Expires: 1996-08-02
Abstract
Abstract Binary coded decimal continuously varying data is monitored by comparing the value of the least significant bit for each digit of each received digital word to the same bit value of the immediately preceding digital word and generating a pulse each time that that value changes and providing a composite pulse equal to the sum of the amplitudes of all coincident pulses to afford an easily readable visual display of the data.
Inventors
- 👤 Larry G. Slay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:17
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04; G01R13/08; G01R13/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
128 words
Apparatus responsive to value changes in binary coded decimal digital words representative of continuously varying data, comprising: means for receiving each digital word; a plurality of storage means connected to the output of said receiving means, there being a different one for each of the digits represented in each digital word, each having means for receiving and storing at its output the value of the least significant bit for its associated digit when enabled; means for enabling said storage means upon receipt of a new digital word, and a plurality of pulse generators, there being a different one for each of said storage means connected to its output for providing a pulse each time that its associated storage means output changes value irrespective of the direction of change.
Claim 2
Dependent Claim
128 words
Apparatus responsive to value changes in binary coded decimal digital words representative of continuously varying data, comprising: means for receiving each digital word; a plurality of storage means connected to the output of said receiving means, there being a different one for each of the digits represented in each digital word, each having means for receiving and storing at its output the value of the least significant bit for its associated digit when enabled; means for enabling said storage means upon receipt of a new digital word, and a plurality of pulse generators, there being a different one for each of said storage means connected to its output for providing a pulse each time that its associated storage means output changes value irrespective of the direction of change.
Claim 3
Dependent Claim
40 words
The apparatus of claim 1 including summing means connected to the outputs of said pulse generators for providing a composite pulse whose amplitude is a function of the sum of all the amplitudes of coincident pulses produced at their outputs.
Claim 4
Dependent Claim
22 words
The apparatus of claim 2 including recording means for providing a visual display of the composite pulse output of said summing means.
Claim 5
Dependent Claim
28 words
The apparatus of claim 3 wherein said recording means is a galvanometer recorder for providing a strip chart of the pulses at the output of said summing means.
Claim 6
Dependent Claim
60 words
The apparatus of claim 1 wherein the digital words comprise a serial bit stream and including a shift register for receiving the bit stream, wherein each of said storage means is connected to the output lead of said register corresponding to the least significant bit position for its associated digit once a digital word is fully loaded into said register.
Claim 7
Dependent Claim
40 words
The apparatus of claim 5 including summing means connected to the outputs of said pulse generators for providing a composite pulse whose amplitude is a function of the sum of all the amplitudes of coincident pulses produced at their outputs.
Claim 8
Dependent Claim
21 words
The apparatus of claim 6 including recording means for providing a visual display of the pulse output of said summing means.
Claim 9
Dependent Claim
28 words
The apparatus of claim 7 wherein said recording means is a galvanometer recorder for providing a strip chart of the pulses at the output of said summing means.
Claim 10
Independent Claim
68 words
A method for providing pulse responses to value changes in binary coded decimal digital words representative of continuously varying data, comprising: simultaneously comparing the least significant bit value for each digit represented in each received digital word to the same bit value of the immediately preceding digital word, and generating a pulse for each comparison of a bit value that has changed irrespective of the direction of change.
Claim 11
Independent Claim
68 words
A method for providing pulse responses to value changes in binary coded decimal digital words representative of continuously varying data, comprising: simultaneously comparing the least significant bit value for each digit represented in each received digital word to the same bit value of the immediately preceding digital word, and generating a pulse for each comparison of a bit value that has changed irrespective of the direction of change.
Claim 12
Dependent Claim
16 words
The method of claim 9 including summing all pulses generated simultaneously to generate a composite pulse.
Claim 13
Dependent Claim
11 words
The method of claim 10 including visually displaying said composite pulse.
Claim 14
Dependent Claim
15 words
The method of claim 11 wherein said visual displaying is done via a strip chart.
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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) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |