Patent US2537049A successfully refreshed from Google Patents.
US3921147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ECG instrument
Assignee: Picker International GmbH
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Filing: 1974-02-11
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Granted: 1975-11-18
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Expires: 1994-02-11
Abstract
Abstract An ECG computer terminal system for interfacing between ECG equipment and a computer. The ECG equipment can be used to monitor heart action of several patients. The computer is used to analyze the resulting ECG data. The terminal system includes analog to digital conversion, digital storage, transfer of digital information to the computer, manual keyboard control and patient identification of the ECG signals, and multiplexing of these signals.
Inventors
- 👤 Gunter Fuhr
- 👤 Heinz Reetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:33
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/333; A61B5/335; A61B5/336; A61B5/337
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
An ECG computer terminal system for interfacing between ECG equipment and a computer, said equipment being used for monitoring heart activity of at least one patient, said computer being used to analyze said monitored heart activity, said system comprising means for amplifying electrical analog signals from said equipment, first means for converting said analog signals to digital signals, means for temporarily storing said digital signals, second means for providing other analog signals corresponding to said stored digital signals while not removing said digital signals from said temporary storing means, means for viewing said other analog signals to determine quality of said other analog signals and thereby determine quality of said stored digital signals, manual keyboard control means connected to said temporary storing means for eliminating certain of said digital signals from said temporary storing means, and means for transferring other of said digital signals from said temporary storing means to the input of said computer.
Claim 2
Dependent Claim
155 words
An ECG computer terminal system for interfacing between ECG equipment and a computer, said equipment being used for monitoring heart activity of at least one patient, said computer being used to analyze said monitored heart activity, said system comprising means for amplifying electrical analog signals from said equipment, first means for converting said analog signals to digital signals, means for temporarily storing said digital signals, second means for providing other analog signals corresponding to said stored digital signals while not removing said digital signals from said temporary storing means, means for viewing said other analog signals to determine quality of said other analog signals and thereby determine quality of said stored digital signals, manual keyboard control means connected to said temporary storing means for eliminating certain of said digital signals from said temporary storing means, and means for transferring other of said digital signals from said temporary storing means to the input of said computer.
Claim 3
Dependent Claim
82 words
A system as recited in claim 1 and wherein said first means includes third means for multiplexing said electrical analog signals, said second means includes fourth means for de-multiplexing said other analog signals, said manual keyboard control means further comprising means for providing digitized alphanumeric patient information to said storage means corresponding to said digital signals, said second means further including alphanumeric display means for providing said patient information to said viewing means whereby identification of said other analog signals is achieved.
Claim 4
Dependent Claim
22 words
A system as recited in claim 1 and wherein said transferring means includes permanent storing means for permanently storing said digital signals.
Claim 5
Dependent Claim
18 words
A system as recited in claim 3 and wherein said permanent storing means comprises a magnetic tape recorder.
Claim 6
Dependent Claim
18 words
A system as recited in claim 1 further including an XY recorder for recording said other analog signals.
Claim 7
Dependent Claim
18 words
A system as recited in claim 5 further including means for displaying vector loops on said XY recorder.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |