US3697785A
Expired / Lapsed
US
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Solid state scanning device
Assignee: Tektronix Inc
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Filing: 1971-02-08
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Granted: 1972-10-10
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Expires: 1991-02-08
Abstract
Abstract A solid state scanning device comprises a planar or integrated circuit transistor having an elongated base disposed between an elongated emitter and an elongated collector. End terminals of the collector are connected to predetermined potential points, while an input is applied to end terminals of the base for bringing about sheet current distribution injection into the collector. As a result, a parabolic voltage distribution is produced along the collector. The current injection profile can be ''''tilted'''' by applying a finite difference in voltage to the base end terminals which will cause controlled movement of the collector voltage distribution for selection of plural output means or the like.
Inventors
- 👤 Barrie Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:26
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/197
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
205 words
A device for selecting a physical position is accordance with electrical input values comprising: an elongated, continuous, resistive medium; plural spaced coupling means for connecting said resistive medium to a pair of predetermined potential points; means having a given polarity for injecting a controllable sheet of current longitudinally along said resistive medium and including means for providing a variable maximum current value at one end of said sheet and a variable minimum at the other end thereof with intermediate values therebetween to produce a voltage distribution in said resistive medium having a maximum or minimum value located between the ends of said sheet of current along said sheet of current brought about by the profile of said controllable sheet of current and the resistance of said medium between said coupling means; said pair of predetermined potential points each having a potential level different from and of the same relative polarity with respect to said means for injecting current; and output means along said resistive medium which are separate from said spaced coupling means and includes a junction said output means being selectively operable by said maximum or minimum of said voltage distribution exceeding an input threshold thereof for steering a current in said output means.
Claim 2
Independent Claim
205 words
A device for selecting a physical position is accordance with electrical input values comprising: an elongated, continuous, resistive medium; plural spaced coupling means for connecting said resistive medium to a pair of predetermined potential points; means having a given polarity for injecting a controllable sheet of current longitudinally along said resistive medium and including means for providing a variable maximum current value at one end of said sheet and a variable minimum at the other end thereof with intermediate values therebetween to produce a voltage distribution in said resistive medium having a maximum or minimum value located between the ends of said sheet of current along said sheet of current brought about by the profile of said controllable sheet of current and the resistance of said medium between said coupling means; said pair of predetermined potential points each having a potential level different from and of the same relative polarity with respect to said means for injecting current; and output means along said resistive medium which are separate from said spaced coupling means and includes a junction said output means being selectively operable by said maximum or minimum of said voltage distribution exceeding an input threshold thereof for steering a current in said output means.
Claim 3
Dependent Claim
13 words
The device according to claim 1 wherein said output means comprise transistor means.
Claim 4
Dependent Claim
42 words
The device according to claim 1 wherein said resistive medium comprises a semiconductor collector electrode, and wherein said means for injecting current comprises an emitter electrode and base electrode disposed in operative relation with said collector electrode to provide transistor action therewith.
Claim 5
Independent Claim
148 words
A device for selecting a physical position in accordance with electrical input values comprising: an elongated resistive medium, plural spaced coupling means provided for said resistive medium for connection to predetermined potential points, means for injecting a controllable sheet of current longitudinally along said resistive medium for producing a voltage distribution in said resistive medium having a maximum or minimum value located between the ends of said sheet of current and positionable according to the distribution of current along said sheet of current, said controllable sheet of current having a variabLe maximum current value at one end thereof and a variable minimum current value at the other end thereof with intermediate values therebetween, and negative feedback means between said coupling means for said resistive medium and said means for injecting a sheet of current, for producing linear movement of said voltage distribution with change in input current distribution.
Claim 6
Independent Claim
148 words
A device for selecting a physical position in accordance with electrical input values comprising: an elongated resistive medium, plural spaced coupling means provided for said resistive medium for connection to predetermined potential points, means for injecting a controllable sheet of current longitudinally along said resistive medium for producing a voltage distribution in said resistive medium having a maximum or minimum value located between the ends of said sheet of current and positionable according to the distribution of current along said sheet of current, said controllable sheet of current having a variabLe maximum current value at one end thereof and a variable minimum current value at the other end thereof with intermediate values therebetween, and negative feedback means between said coupling means for said resistive medium and said means for injecting a sheet of current, for producing linear movement of said voltage distribution with change in input current distribution.
Claim 7
Independent Claim
101 words
A device for selecting a physical position in accordance with electrical input values comprising: an elongated, continuous, resistive medium provided with plural coupling means spaced therealong connected to predetermined potential points, control device means for injecting a controllable sheet of current longitudinally along said resistive medium, said injected current producing a substantially parabolic voltage distribution along said resistive medium, plural output means disposed along said resistive medium selectively operable by said parabolic distribution exceeding the operating threshold thereof, and positive feedback provided between said output means and said means for injecting current to sharpen the profile of said parabolic voltage distribution.
Claim 8
Independent Claim
101 words
A device for selecting a physical position in accordance with electrical input values comprising: an elongated, continuous, resistive medium provided with plural coupling means spaced therealong connected to predetermined potential points, control device means for injecting a controllable sheet of current longitudinally along said resistive medium, said injected current producing a substantially parabolic voltage distribution along said resistive medium, plural output means disposed along said resistive medium selectively operable by said parabolic distribution exceeding the operating threshold thereof, and positive feedback provided between said output means and said means for injecting current to sharpen the profile of said parabolic voltage distribution.
Claim 9
Dependent Claim
247 words
A semiconductor device comprising: an elongated, continuous collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base electrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of current producing a substantially parabolic voltage distribution along said collector electrode due to the resistance of said collector electrode between said pair of coupling means thereof, said parabolic voltage distribution having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, and output means along said collector electrode, said output means including a junction and being selectively operable by said maximum or minimum of said voltage distribution exceeding an input threshold thereof.
Claim 10
Dependent Claim
247 words
A semiconductor device comprising: an elongated, continuous collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base electrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of current producing a substantially parabolic voltage distribution along said collector electrode due to the resistance of said collector electrode between said pair of coupling means thereof, said parabolic voltage distribution having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, and output means along said collector electrode, said output means including a junction and being selectively operable by said maximum or minimum of said voltage distribution exceeding an input threshold thereof.
Claim 11
Dependent Claim
16 words
The device according to claim 6 wherein the resistivity of said collector electrode is substantially uniform.
Claim 12
Dependent Claim
28 words
The device according to claim 6 wherein said output means comprise transistor means for steering a common supply current with said maximum or minimum of said voltage distribution.
Claim 13
Dependent Claim
12 words
The device according to claim 6 wherein said emitter electrode is metalized.
Claim 14
Dependent Claim
57 words
The device according to claim 6 wherein said means for connection to a source of current is disposed centrally of said emitter electrode, the resistance per unit length of the base electrode being beta times the resistance per unit length of the emitter electrode, wherein beta is the common-emitter forward current transfer ratio of said semi-conductor device.
Claim 15
Dependent Claim
233 words
A semiconductor device comprising: an elongated collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base elecTrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of current producing a substantially parabolic voltage distribution along said collector electrode having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, and feedback circuit means cross coupling the coupling means for the collector electrode in negative driving relation to the coupling means for said base electrode, for linearizing the control of the collector voltage distribution by input values.
Claim 16
Dependent Claim
233 words
A semiconductor device comprising: an elongated collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base elecTrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of current producing a substantially parabolic voltage distribution along said collector electrode having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, and feedback circuit means cross coupling the coupling means for the collector electrode in negative driving relation to the coupling means for said base electrode, for linearizing the control of the collector voltage distribution by input values.
Claim 17
Dependent Claim
28 words
The device according to claim 11 wherein said feedback circuit means includes a pair of transistors for cross coupling said coupling means of the base and collector electrodes.
Claim 18
Dependent Claim
241 words
A semiconductor device comprising: an elongated collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base electrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of current producing a substantially parabolic voltage distribution along said collector electrode having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, said base electrode being located longitudinally between the coupling means for said collector electrode, and output means along said collector electrode, said output means including a junction and being selectively operable by said maximum or minimum of said voltage distribution exceeding an input threshold thereof.
Claim 19
Dependent Claim
241 words
A semiconductor device comprising: an elongated collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base electrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of current producing a substantially parabolic voltage distribution along said collector electrode having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, said base electrode being located longitudinally between the coupling means for said collector electrode, and output means along said collector electrode, said output means including a junction and being selectively operable by said maximum or minimum of said voltage distribution exceeding an input threshold thereof.
Claim 20
Dependent Claim
243 words
A semiconductor device comprising: an elongated collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base electrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of Current producing a substantially parabolic voltage distribution along said collector electrode having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, and second transistor means forming a common semiconductive integrated circuit with said device, said second transistor means being disposed along said base electrode and including said collector electrode, wherein said parabolic voltage distribution is effective to initiate a preselected physically located output from said second transistor means.
Claim 21
Dependent Claim
243 words
A semiconductor device comprising: an elongated collector electrode having a pair of coupling means spaced therealong for connection to predetermined potential points, an elongated base electrode disposed in superposed relation with the collector electrode and also provided with a pair of coupling means spaced therealong, an elongated emitter electrode disposed along and in superposed relation with said base electrode, said emitter electrode being provided with means for connection to a source of current for said emitter electrode, means for providing electrical input values to said coupling means of said base electrode causing said base electrode to bring about injection of a sheet of current from said emitter electrode into said collector electrode, said sheet of current having a distribution varying from a maximum proximate one of said coupling means of said base electrode to a minimum proximate the other of the coupling means of said base electrode when input values applied to the coupling means of said base electrode are unequal, said sheet of Current producing a substantially parabolic voltage distribution along said collector electrode having a maximum or minimum shiftable in accordance with the input values applied to said coupling means of said base electrode, and second transistor means forming a common semiconductive integrated circuit with said device, said second transistor means being disposed along said base electrode and including said collector electrode, wherein said parabolic voltage distribution is effective to initiate a preselected physically located output from said second transistor means.
Claim 22
Dependent Claim
45 words
The device according to claim 14 wherein the second transistor means includes an elongated second emitter electrode disposed along said base electrode and over said collector electrode, and a plurality of selectable collector electrodes disposed along said second emitter electrode and over said collector electrode.
Claim 23
Dependent Claim
40 words
The device according to claim 15 wherein said base electrode is provided with a plurality of protrusions extending toward said second emitter electrode individually in substantial alignment with said second collector electrodes for providing preferential selection of second collector electrodes.
Claim 24
Dependent Claim
82 words
The device according to claim 14 wherein said second transistor means includes a second base electrode disposed along said first mentioned base electrode over the same collector electrode and having a plurality of protrusions extending toward said first mentioned base electrode, the said second base electrode having a pair of coupling means spaced therealong, a second emitter electrode positioned over said collector electrode between the first and second base electrodes, and a third elongated emitter electrode disposed over said second base electrode.
Claim 25
Dependent Claim
24 words
The device according to claim 17 further including circuit means for switching current between the first mentioned emitter electrode and the third emitter electrode.
Claim 26
Dependent Claim
26 words
The device according to claim 14 with said second transistor means being disposed in coupling relation to said base electrode to provide a feedback circuit therewith.
References Cited (Backward Citations)
US3284677A
Cited
US3489963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |