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US5477164A Expired / Lapsed US ⏱️ 0.0 years remaining

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
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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 15:52
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)

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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

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