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EP0228649A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

CMOS encoder circuit

Assignee: NEC Corp
•
Filing: 1986-12-17
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Granted: —
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Expires: 2006-12-17
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Abstract

Abstract An encoder circuit comprising a plurality of input lines (80a-80h) on each of which is to appear a logic "1" or "0" signal bit, a plurality of output lines (82a-82d), a first set of transistors (3) of a first conductivity type, each of the first set transistors having a control terminal connected to each of the input lines (80a-80h) and input and output terminals connected between each of the output lines (82a-82d) and a supply voltage source, a second set of transistors (1) of a second conductivity type opposite to the first conductivity type, each of the second set transistors having a control terminal connected to each of the input lines (80a-80h) and input and output terminals between each of the output lines (82a-82d) and ground, and a plurality of logic inverter devices (2) each connected between each of the input lines (80a-80h) and each of the transistors of one of the first and second conductivity types.

Inventors

  • 👤 Toshiaki Machida

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 02:10
CPC Classifications
H; H03; H03M; H03M7/00; H03M7/14; H03M7/20; H03M7/22

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 153 words
An encoder circuit comprising a) a plurality of input lines on each of which is to appear a logic "1" or "0" signal, b) a plurality of output lines, c) a first set of transistors of a first conductivity type, each of the first set transistors having a control terminal connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a second set of transistors of a second conductivity type opposite to said first conductivity type, each of the second set transistors having a control terminal connected to each of said input lines and input and output terminals between each of said output lines and a reference voltage source, and e) a plurality of logic inverter devices each connected between each of said input lines and each of the transistors of one of said first and second conductivity types.
Claim 2
Dependent Claim 153 words
An encoder circuit comprising a) a plurality of input lines on each of which is to appear a logic "1" or "0" signal, b) a plurality of output lines, c) a first set of transistors of a first conductivity type, each of the first set transistors having a control terminal connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a second set of transistors of a second conductivity type opposite to said first conductivity type, each of the second set transistors having a control terminal connected to each of said input lines and input and output terminals between each of said output lines and a reference voltage source, and e) a plurality of logic inverter devices each connected between each of said input lines and each of the transistors of one of said first and second conductivity types.
Claim 3
Dependent Claim 127 words
An encoder circuit comprising a) a plurality of input lines on which is to appear a signal consisting of bits including only one "0" signal bit, b) a plurality of output lines, c) a set of p-channel field-effect transistors each of which has a gate connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a set of n-channel field-effect transistors each of which has a gate connected to each of said input lines and a current path connected between each of said output lines and a reference voltage source, and e) a plurality of logic inverter devices each connected between each of said input lines and each of the n-channel field-effect transistors.
Claim 4
Dependent Claim 127 words
An encoder circuit comprising a) a plurality of input lines on which is to appear a signal consisting of bits including only one "0" signal bit, b) a plurality of output lines, c) a set of p-channel field-effect transistors each of which has a gate connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a set of n-channel field-effect transistors each of which has a gate connected to each of said input lines and a current path connected between each of said output lines and a reference voltage source, and e) a plurality of logic inverter devices each connected between each of said input lines and each of the n-channel field-effect transistors.
Claim 5
Dependent Claim 129 words
An encoder circuit comprising a) a plurality of input lines on which is to appear a signal consisting of bits including only one "1" signal bit, b) a plurality of output lines, c) a set of p-channel field-effect transistors each of which has a gate connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a set of n-channel field-effect transistors each of which has a gate connected to each of said input lines and a source and a drain connected between each of said output lines and a reference voltage source, and e) a plurality of logic inverter devices each connected between each of said input lines and each of the p-channel field-effect transistors.
Claim 6
Dependent Claim 129 words
An encoder circuit comprising a) a plurality of input lines on which is to appear a signal consisting of bits including only one "1" signal bit, b) a plurality of output lines, c) a set of p-channel field-effect transistors each of which has a gate connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a set of n-channel field-effect transistors each of which has a gate connected to each of said input lines and a source and a drain connected between each of said output lines and a reference voltage source, and e) a plurality of logic inverter devices each connected between each of said input lines and each of the p-channel field-effect transistors.
Claim 7
Dependent Claim 197 words
An encoder circuit comprising a) a plurality of input lines on which is to appear a signal consisting of bits including only one "0" signal bit, b) a plurality of output lines, c) a first transistor zone within which a first set of field-effect transistors of a first conductivity type are located, each of the first set field-effect transistors having a gate connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a second transistor zone within which a second set of field-effect transistors of a second conductivity type opposite to said first conductivity type are located, each of the second set field-transistors having a gate connected to each of said input lines and a current path connected between each of said output lines and a reference voltage source, and e) an inverter zone within which a plurality of logic inverter devices are located, each of the logic inverters being connected between each of said input lines and each of the field-effect transistors of one of said first and second sets, f) said inverter zone intervening between said first and second transistor zones.
Claim 8
Dependent Claim 197 words
An encoder circuit comprising a) a plurality of input lines on which is to appear a signal consisting of bits including only one "0" signal bit, b) a plurality of output lines, c) a first transistor zone within which a first set of field-effect transistors of a first conductivity type are located, each of the first set field-effect transistors having a gate connected to each of said input lines and a current path connected between each of said output lines and a supply voltage source, d) a second transistor zone within which a second set of field-effect transistors of a second conductivity type opposite to said first conductivity type are located, each of the second set field-transistors having a gate connected to each of said input lines and a current path connected between each of said output lines and a reference voltage source, and e) an inverter zone within which a plurality of logic inverter devices are located, each of the logic inverters being connected between each of said input lines and each of the field-effect transistors of one of said first and second sets, f) said inverter zone intervening between said first and second transistor zones.
Claim 9
Dependent Claim 34 words
An encoder circuit as set forth in claim 4, in which said first set of field-effect transistors consist of p-channel field-effect transistors and said second set of field-effect transistors consist of n-channel field-effect transistors.
Claim 10
Dependent Claim 34 words
An encoder circuit as set forth in claim 4, in which said first set of field-effect transistors consist of n-channel field-effect transistors and said second set of field-effect transistors consist of p-channel field-effect transistors.

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