US4401903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
MOS Decoder circuit
Assignee: Toshiba Corp
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Filing: 1980-09-04
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Granted: 1983-08-30
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Expires: 2000-09-04
Abstract
Abstract An MOS decoder circuit including parallel rows or columns of MOS transistors connected to an input signal to be decoded. Two clocked MOS transistors of a channel type different from that used to form the rows of MOS transistors are connected as load resistances, one being connected to the drains of one row of transistors and the other being connected to an MOS transistor circuit coupled to another row of MOS transistors.
Inventors
- 👤 Tetsuya Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:45
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/094; H03K19/096; H03K19/0963; H03K19/0944; H03K19/0948
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
294 words
An MOS decoder circuit for decoding an input signal, said circuit being coupled to a clock signal, a supply of a first voltage potential and a second voltage potential and comprising: first MOS transistors of a first channel type arranged in rows or columns, said first MOS transistors being connected in parallel and receiving at their gates said input signal; second MOS transistors of said first channel type arranged in rows or columns adjacent to said first MOS transistors, said second MOS transistors being connected in parallel, receiving at their gates said input signal and having their sources connected to the sources of said first MOS transistors; a third MOS transistor of a second channel type connected between the drains of said first MOS transistors and said supply of said first voltage potential and receiving at its gate said clock signal; a fourth MOS transistor of said first channel type connected between the sources of said first MOS transistors and said supply of said second voltage potential and receiving at its gate said clock signal; fifth and sixth MOS transistors of said first and said second channel type, respectively, the gates of said fifth and sixth MOS transistors being connected together and to the drains of said first MOS transistors, the source of said fifth MOS transistor being connected to the drains of said second MOS transistors, the drains of said fifth and sixth MOS transistors being connected together, and the source of said sixth MOS transistor being connected to said supply of said first voltage potential; and a seventh MOS transistor of said second channel type connected between said drains of said fifth and sixth MOS transistors and said supply of said first voltage potential and receiving at its gate said clock signal.
Claim 2
Dependent Claim
294 words
An MOS decoder circuit for decoding an input signal, said circuit being coupled to a clock signal, a supply of a first voltage potential and a second voltage potential and comprising: first MOS transistors of a first channel type arranged in rows or columns, said first MOS transistors being connected in parallel and receiving at their gates said input signal; second MOS transistors of said first channel type arranged in rows or columns adjacent to said first MOS transistors, said second MOS transistors being connected in parallel, receiving at their gates said input signal and having their sources connected to the sources of said first MOS transistors; a third MOS transistor of a second channel type connected between the drains of said first MOS transistors and said supply of said first voltage potential and receiving at its gate said clock signal; a fourth MOS transistor of said first channel type connected between the sources of said first MOS transistors and said supply of said second voltage potential and receiving at its gate said clock signal; fifth and sixth MOS transistors of said first and said second channel type, respectively, the gates of said fifth and sixth MOS transistors being connected together and to the drains of said first MOS transistors, the source of said fifth MOS transistor being connected to the drains of said second MOS transistors, the drains of said fifth and sixth MOS transistors being connected together, and the source of said sixth MOS transistor being connected to said supply of said first voltage potential; and a seventh MOS transistor of said second channel type connected between said drains of said fifth and sixth MOS transistors and said supply of said first voltage potential and receiving at its gate said clock signal.
Claim 3
Dependent Claim
35 words
A MOS decoder circuit according to claim 1, wherein said first and second channel types are respectively N and P channel types, and said first and second voltage potentials are respectively positive and ground potentials.
Claim 4
Dependent Claim
35 words
A MOS decoder circuit according to claim 1, wherein said first and second channel types are respectively P and N channel types, and said first and second voltage potentials are respectively ground and positive potentials.
References Cited (Backward Citations)
US3965369A
Cited
US4063118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |