Patent US3614524A successfully refreshed from Google Patents.
US3614524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system with different intensity indication
Assignee: Sony Corp
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Filing: 1970-03-30
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Granted: 1971-10-19
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Expires: 1990-03-30
Abstract
Abstract A display system for displaying place-indicating points darker than a decimal point to avoid misreading of the latter. Electrodes for place indication every three figures in indicator tubes are arranged to glow in a time-divisional manner with less duty cycle than an electrode for decimal point indication.
Inventors
- 👤 Koichi Kojima
- 👤 Tadahiko Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:03
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
A display system comprising a plurality of electrically energized indicator devices, each having a first electrode and a plurality of electrodes to provide different indications according to a particular second terminal which becomes connected in a circuit with a first electrode, means for connecting each one of said second electrodes of said indicator devices, first drive means for actuating said first electrodes sequentially, second drive means for selectively actuating said connected electrodes in synchronism with said first drive means, and means for controlling indication of at least one of said connected second electrodes on less duty cycle than that of the other second electrodes.
Claim 2
Dependent Claim
104 words
A display system comprising a plurality of electrically energized indicator devices, each having a first electrode and a plurality of electrodes to provide different indications according to a particular second terminal which becomes connected in a circuit with a first electrode, means for connecting each one of said second electrodes of said indicator devices, first drive means for actuating said first electrodes sequentially, second drive means for selectively actuating said connected electrodes in synchronism with said first drive means, and means for controlling indication of at least one of said connected second electrodes on less duty cycle than that of the other second electrodes.
Claim 3
Dependent Claim
18 words
A display system as claimed in claim 1 wherein said one of second electRodes is a point-indicating electrode.
Claim 4
Dependent Claim
19 words
A display system as claimed in claim 1 wherein said one of the second electrodes is a numeral-indicating electrode.
Claim 5
Dependent Claim
23 words
A display system as claimed in claim 1 wherein the indication control means includes a counter for lengthening the period of the signal.
Claim 6
Dependent Claim
135 words
A display system comprising a plurality of electrically energized indicator devices, each having a first electrode and a plurality of second electrodes to provide different indications according to a particular terminal which becomes connected in a circuit with the first electrode, a plurality of first switching means respectively connected to each of said first electrodes, means for connecting each one of said second electrodes of said indicator devices, second switching means connected to said connecting means, first drive means for applying signals to a plurality of said first switching means sequentially, second drive means for applying signals of the same duty cycle as said first drive means to said second switching means, and third drive means for applying signals of less duty cycle than that of said first drive means to said second switching means.
Claim 7
Dependent Claim
135 words
A display system comprising a plurality of electrically energized indicator devices, each having a first electrode and a plurality of second electrodes to provide different indications according to a particular terminal which becomes connected in a circuit with the first electrode, a plurality of first switching means respectively connected to each of said first electrodes, means for connecting each one of said second electrodes of said indicator devices, second switching means connected to said connecting means, first drive means for applying signals to a plurality of said first switching means sequentially, second drive means for applying signals of the same duty cycle as said first drive means to said second switching means, and third drive means for applying signals of less duty cycle than that of said first drive means to said second switching means.
Claim 8
Dependent Claim
22 words
A display system as claimed in claim 5 wherein said one of the second electrodes connected together is a point indicating electrode.
Claim 9
Dependent Claim
19 words
A display system as claimed in claim 5 wherein said one of the second electrodes is a numeral-indicating electrode.
Claim 10
Dependent Claim
23 words
A display system as claimed in claim 5 wherein the third drive means includes a counter for lengthening the period of the signal.
References Cited (Backward Citations)
US3414764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |