Patent FR747483A successfully refreshed from Google Patents.
Patent US3801866A successfully refreshed from Google Patents.
US3801866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashing novelty device
Assignee: Individual
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Filing: 1972-12-11
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Granted: 1974-04-02
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Expires: 1992-12-11
Abstract
Abstract A two-function oscillator comprising an integrated circuit device and a plurality of circuit components externally connected to the device. The circuit device provides an output terminal and a voltage-level responsive circuit therewithin for changing the state of the voltage on the output terminal from a level approximately equal to the applied voltage to a second level approximately equal to ground level. A first load circuit is placed between the said output terminal and ground to be energized when the voltage on the output terminal is approximately equal to the applied voltage and a second load circuit is connected between the output terminal and the terminal to which the voltage is applied to be energized when the said output terminal is approximately at ground level. An externally connected capacitor is discharged through the integrated circuit device as it changes state, and it is the voltage-level on the capacitor which causes the voltage on the said output terminal to switch from the applied voltage level to ground level.
Inventors
- 👤 P Schmidgall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:30
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/42
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
364 words
An oscillator comprising an integrated circuit device providing a voltage input terminal, an output terminal, a ground terminal, a timing capacitor discharge terminal, a pair of voltage sensing terminals, a voltage divider circuit between Said input terminal and ground terminal, said divider providing a first reference point defining a first reference voltage and a second reference point defining a second and lower reference voltage, a flip-flop circuit having first and second alternate states, a first comparator for connecting said flip-flop to said first reference point, a second comparator for connecting said flip-flop to said second reference point, each of said comparators including a connection to one of said voltage sensing terminals, and circuit means which becomes conductive when the voltage on its sensing terminal corresponds to the voltage on the said reference point to which said comparator is connected, a first output stage transistor connected between said input terminal and said output terminal, a second output stage transistor connected between said output terminal and ground, said output stage transistors being connected to and dominated by said flip-flop such that, when said flip-flop is in its first state, said first transistor is rendered conductive to provide the applied voltage on said output terminal and, when said flipflop is in its second state, said second transistor is rendered conductive to lower the voltage on said output terminal to ground level, and a discharging transistor connected between said discharge terminal and ground, said discharging transistor being connected to said flip-flop to be rendered conductive when said flip-flop is in its second state, and a plurality of circuit components connected to said integrated circuit device, said components including first load circuit components connected between said output terminal and ground to be energized when said flip-flop is in its first state, second load circuit components connected between said input terminal and said output terminal to be energized when said flip-flop is in its second state, a capacitor connected between said voltage sensing terminals and ground such that the voltage on said capacitor is present on said sensing terminals, resistance means connected between said input terminal and said capacitor, and resistance means connected between said capacitor and said discharge terminal.
Claim 2
Dependent Claim
364 words
An oscillator comprising an integrated circuit device providing a voltage input terminal, an output terminal, a ground terminal, a timing capacitor discharge terminal, a pair of voltage sensing terminals, a voltage divider circuit between Said input terminal and ground terminal, said divider providing a first reference point defining a first reference voltage and a second reference point defining a second and lower reference voltage, a flip-flop circuit having first and second alternate states, a first comparator for connecting said flip-flop to said first reference point, a second comparator for connecting said flip-flop to said second reference point, each of said comparators including a connection to one of said voltage sensing terminals, and circuit means which becomes conductive when the voltage on its sensing terminal corresponds to the voltage on the said reference point to which said comparator is connected, a first output stage transistor connected between said input terminal and said output terminal, a second output stage transistor connected between said output terminal and ground, said output stage transistors being connected to and dominated by said flip-flop such that, when said flip-flop is in its first state, said first transistor is rendered conductive to provide the applied voltage on said output terminal and, when said flipflop is in its second state, said second transistor is rendered conductive to lower the voltage on said output terminal to ground level, and a discharging transistor connected between said discharge terminal and ground, said discharging transistor being connected to said flip-flop to be rendered conductive when said flip-flop is in its second state, and a plurality of circuit components connected to said integrated circuit device, said components including first load circuit components connected between said output terminal and ground to be energized when said flip-flop is in its first state, second load circuit components connected between said input terminal and said output terminal to be energized when said flip-flop is in its second state, a capacitor connected between said voltage sensing terminals and ground such that the voltage on said capacitor is present on said sensing terminals, resistance means connected between said input terminal and said capacitor, and resistance means connected between said capacitor and said discharge terminal.
Claim 3
Dependent Claim
45 words
The invention of claim 1 in which said first and second load circuit components each include a light-emitting diode and resistor, each said resistor being effective to prevent the light-emitting diode of the opposite load circuit from conducting when its associated light-emitting diode is conducting.
Claim 4
Dependent Claim
248 words
A two-function oscillator comprising an integrated circuit device providing a voltage input terminal, an output terminal, a ground terminal, a discharge terminal, a first output stage transistor connected between said input terminal and said output terminal, a second output stage transistor connected between said output terminal and ground, voltage-level responsive circuit means for alternately rendering said output stage transistors conductive such that, when said first transistor is conductive, the voltage on said output terminal is approximately equal to the voltage applied to said input terminal and, when said second transistor is conductive, the voltage on said output terminal is approximately at ground level, and a discharge transistor connected between said discharge terminal and ground, said discharge transistor being connected to and dominated by said circuit means to be rendered conductive when said second output stage transistor is rendered conductive, and a plurality of circuit components connected to said integrated circuit device, said components including first load circuit components connected between said output terminal and ground to be energized when said first transistor is conductive, second load circuit components connected between said input terminal and said output terminal to be energized when said second transistor is conductive, a capacitor connected between said voltage-level responsive circuit means and ground such that the switching of said circuit means between its alternate states is determined by The voltage on said capacitor, resistance means connected between said input terminal and said capacitor, and resistance means connected between said capacitor and said discharge terminal.
Claim 5
Dependent Claim
248 words
A two-function oscillator comprising an integrated circuit device providing a voltage input terminal, an output terminal, a ground terminal, a discharge terminal, a first output stage transistor connected between said input terminal and said output terminal, a second output stage transistor connected between said output terminal and ground, voltage-level responsive circuit means for alternately rendering said output stage transistors conductive such that, when said first transistor is conductive, the voltage on said output terminal is approximately equal to the voltage applied to said input terminal and, when said second transistor is conductive, the voltage on said output terminal is approximately at ground level, and a discharge transistor connected between said discharge terminal and ground, said discharge transistor being connected to and dominated by said circuit means to be rendered conductive when said second output stage transistor is rendered conductive, and a plurality of circuit components connected to said integrated circuit device, said components including first load circuit components connected between said output terminal and ground to be energized when said first transistor is conductive, second load circuit components connected between said input terminal and said output terminal to be energized when said second transistor is conductive, a capacitor connected between said voltage-level responsive circuit means and ground such that the switching of said circuit means between its alternate states is determined by The voltage on said capacitor, resistance means connected between said input terminal and said capacitor, and resistance means connected between said capacitor and said discharge terminal.
Claim 6
Dependent Claim
75 words
The invention of claim 3 in which said first load circuit components include a first light emitting diode and a first resistor and said second load circuit components include a second light emitting diode and a second resistor, said first resistor being effective to prevent conduction of said second diode when said first transistor is conducting, and said second resistor being effective to prevent conduction of said first diode when said second transistor is conducting.
References Cited (Backward Citations)
US3659224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |