Patent US5477164A successfully refreshed from Google Patents.
US5477164A
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Adiabatic dynamic noninverting circuitry
Assignee: AT&T Inc
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Filing: 1993-05-28
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Granted: 1995-12-19
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Expires: 2013-05-28
Abstract
Abstract An adiabatic dynamic non-inverter circuit is a mechanism by which a logic level signal and its inverse are simultaneously available in dynamic logic circuitry without significant power dissipation. The principles of this non-inverter circuit are used to create an exclusive-or gate which also does not dissipate significant power. Both of these circuits employ simplified circuit topologies.
Inventors
- 👤 John S. Denker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:01
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/094; H03K19/096; H03K19/0008; H03K19/0019
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
177 words
A non-inverter circuit, comprising: an input node receiving an input signal having one of two states; an output node producing an output signal having the same state as the input signal; a first clock node for receiving a first periodic clock signal adiabatically varying at predetermined rates of change between first and second levels; a second clock node for receiving a second periodic clock signal adiabatically varying at predetermined rates of change between third and fourth levels, the second clock signal having a predetermined phase shift with respect to the first clock signal; a first controllable switch of a first conductivity type in series with a second controllable switch of a second conductivity type, the first and second controllable switches connected in series between one of the clock nodes and the output node; the first controllable switch having a control terminal responsive to the other of the clock nodes and the second controllable switch having a control terminal responsive to the input node; and a rectification means connected between the output node and the one clock node.
Claim 2
Dependent Claim
177 words
A non-inverter circuit, comprising: an input node receiving an input signal having one of two states; an output node producing an output signal having the same state as the input signal; a first clock node for receiving a first periodic clock signal adiabatically varying at predetermined rates of change between first and second levels; a second clock node for receiving a second periodic clock signal adiabatically varying at predetermined rates of change between third and fourth levels, the second clock signal having a predetermined phase shift with respect to the first clock signal; a first controllable switch of a first conductivity type in series with a second controllable switch of a second conductivity type, the first and second controllable switches connected in series between one of the clock nodes and the output node; the first controllable switch having a control terminal responsive to the other of the clock nodes and the second controllable switch having a control terminal responsive to the input node; and a rectification means connected between the output node and the one clock node.
Claim 3
Dependent Claim
201 words
An exclusive-or circuit, comprising: first and second input nodes receiving first and second input signals each having one of two states; an output node producing an output signal having a state which represents an exclusive-or function of the first and second input signals; a first clock node for receiving a first periodic clock signal adiabatically varying at predetermined rates of change between first and second levels; a second clock node for receiving a second periodic clock signal adiabatically varying at predetermined rates of change between third and fourth levels, the second clock signal having a predetermined phase shift with respect to the first clock signal; first and second controllable switches of a first conductivity type in series with a third controllable switch of a second conductivity type, the first, second, and third controllable switches connected in series between one of the clock nodes and the output node; the third controllable switch having a control terminal responsive to the other of the clock nodes and the first and second controllable switches each having respective control terminals responsive to a respective one of the first and second input nodes; and a rectification means connected between the output node and the one clock node.
Claim 4
Dependent Claim
201 words
An exclusive-or circuit, comprising: first and second input nodes receiving first and second input signals each having one of two states; an output node producing an output signal having a state which represents an exclusive-or function of the first and second input signals; a first clock node for receiving a first periodic clock signal adiabatically varying at predetermined rates of change between first and second levels; a second clock node for receiving a second periodic clock signal adiabatically varying at predetermined rates of change between third and fourth levels, the second clock signal having a predetermined phase shift with respect to the first clock signal; first and second controllable switches of a first conductivity type in series with a third controllable switch of a second conductivity type, the first, second, and third controllable switches connected in series between one of the clock nodes and the output node; the third controllable switch having a control terminal responsive to the other of the clock nodes and the first and second controllable switches each having respective control terminals responsive to a respective one of the first and second input nodes; and a rectification means connected between the output node and the one clock node.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |