US3585308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplex converter system
Assignee: Epsco Inc
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Filing: 1968-12-19
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Granted: 1971-06-15
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Expires: 1988-12-19
Abstract
Abstract A multiplex converter system for continuously, selectively updating information in a plurality of analog output channels by means of a single input channel by converting an input signal from the input channel to a first analog signal and storing it in a particular one of the channels to provide a second analog signal output from that channel which is a replica of the first analog signal, while the other channels are similarly updated by other input signals supplied by the input channel.
Inventors
- 👤 Herbert Edward Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:12
CPC Classifications
G; G11; G11C; G11C27/00; G11C27/02; H; H04; H04L; H04L5/00; H04L5/22; H04L5/24; H04L5/245
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
A multiplex converter system for continuously, selectively updating information in a plurality of analog output channels by means of a single input channel, comprising: a reference signal source; an input channel including converter means for receiving a series of input signals in a first form and successively combining them with a reference signal from said reference signal source to provide a series of first analog signals; a plurality of analog output channels, each including: sampling means for sampling one of said first analog signals; storage means for storing a sample of one of said first analog signals; and modulator means for receiving one of said signal samples from said storage means and a reference signal from said reference signal source, said modulator means combining said sample and said reference signal to produce a second analog signal which is a replica of said first analog signal; and control means for sequentially actuating the sampling means in said channels.
Claim 2
Dependent Claim
157 words
A multiplex converter system for continuously, selectively updating information in a plurality of analog output channels by means of a single input channel, comprising: a reference signal source; an input channel including converter means for receiving a series of input signals in a first form and successively combining them with a reference signal from said reference signal source to provide a series of first analog signals; a plurality of analog output channels, each including: sampling means for sampling one of said first analog signals; storage means for storing a sample of one of said first analog signals; and modulator means for receiving one of said signal samples from said storage means and a reference signal from said reference signal source, said modulator means combining said sample and said reference signal to produce a second analog signal which is a replica of said first analog signal; and control means for sequentially actuating the sampling means in said channels.
Claim 3
Dependent Claim
25 words
The system of claim 1 further including a feedback loop connected between the output of said modulator means and the input of said sampling means.
Claim 4
Dependent Claim
19 words
The system of claim 2 further including an input amplifier connected between said converter means and said sampling means.
Claim 5
Dependent Claim
18 words
The system of claim 2 further including a driver amplifier responsive to the output of said modulator means.
Claim 6
Dependent Claim
14 words
The system of claim 1 in which said samplIng means includes first switching means.
Claim 7
Dependent Claim
19 words
The system of claim 2 further including second switching means in said feedback loop actuatable with said sampling means.
Claim 8
Dependent Claim
16 words
The system of claim 1 in which said reference signal source provides an alternating current signal.
Claim 9
Dependent Claim
14 words
The system of claim 1 in which said converter means includes a digital-to-analog converter.
Claim 10
Dependent Claim
36 words
The system of claim 1 in which said input signals each contain an address portion and said control means is responsive to said address portion to actuate the said sampling means of the particular addressed channel.
References Cited (Backward Citations)
US2725471A
Cited
US3471644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |