US3601634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field effect transistor multiplexing circuit for time sharing a common conductor
Assignee: Individual
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Filing: 1970-07-13
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Granted: 1971-08-24
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Expires: 1990-07-13
Abstract
Abstract A plurality of output drivers gated by multiple phase clocking signals are connected together at a common conductor. Sampling transistors for each of the drivers are connected to the common conductor and are gated by the same clocking signals gating the drivers for synchronizing the connections of the drivers to their associated outputs.
Inventors
- 👤 Michel A Ebertin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:51
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/687; H03K17/693; H04; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/047
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
A field effect transistor multiplexing circuit gated by multiphase clocking signals comprising, a plurality of output drivers each gated by a distinct phase of said multiphase clocking signals, a common conductor, said plurality of output drivers being connected to said common conductor, a plurality of outputs each corresponding to one of said output drivers, a plurality of sampling circuits connected to said common conductor with each circuit corresponding to an output driver and gated by a corresponding phase of said multiphase clocking signals, each of said sampling circuits being connected between its associated output driver and the output for said driver.
Claim 2
Dependent Claim
101 words
A field effect transistor multiplexing circuit gated by multiphase clocking signals comprising, a plurality of output drivers each gated by a distinct phase of said multiphase clocking signals, a common conductor, said plurality of output drivers being connected to said common conductor, a plurality of outputs each corresponding to one of said output drivers, a plurality of sampling circuits connected to said common conductor with each circuit corresponding to an output driver and gated by a corresponding phase of said multiphase clocking signals, each of said sampling circuits being connected between its associated output driver and the output for said driver.
Claim 3
Dependent Claim
62 words
The circuit recited in claim 1 wherein said plurality of output drivers arE connected to a common point on said common conductor and said plurality of sampling circuits are connected at a distinct common p0int on said common conductor, said common conductor being time shared by all of said output drivers as a function of the phases of said multiphase clocking signals.
Claim 4
Dependent Claim
41 words
The circuit recited in claim 1 wherein said output drivers are alternately connected at each end of said common conductor and the sampling circuits corresponding to said alternately connected output drivers are connected at an opposite end of said common conductor.
Claim 5
Dependent Claim
49 words
The circuit recited in claim 1 wherein said sampling circuits each comprise a field effect transistor having a gate electrode connected to a clock signal, with the field effect transistors corresponding to an output driver being in electrical series with said driver and its output through said common conductor.
Claim 6
Dependent Claim
24 words
The circuit recited in claim 1 wherein said output driver provides an output voltage level only during the phase of its gating clock signal.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |