Patent US299968A successfully refreshed from Google Patents.
Patent US3671730A successfully refreshed from Google Patents.
US3671730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic device for plane graphical representation with perspective effect
Assignee: Individual
•
Filing: 1970-03-30
•
Granted: 1972-06-20
•
Expires: 1990-03-30
Abstract
Abstract The present invention concerns an electronic device supplying a plane graphical representation with perspective effect of three voltages. An electronic device comprising three electrical signal input channels denoted by X, Y and Z, a signal distributor receiving electrical signals denoted by x, y and z supplied respectively by the three channels X, Y and Z and supplying electrically signals a and b to two channels respectively denoted by A and B, the function of the signal distributor to amplify and combine the electrical signals x, y and z supplied to it for supplying to the channel A a signal a k.x + m.z and for supplying to the channel b a signal b l.y + n.z, the amplification factors k, 1, m and n being independent of each other and negative or positive. Generally, the invention is applied to the representation of any quantities which can be translated into electrical signals, the variations of some of which as are functions of the other it is useful to know.
Inventors
- 👤 Maurice J M Pilato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:22
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/22
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
137 words
An electronic device comprising a signal distributor, three inputs for supplying three electrical input signals to said distributor, two outputs for receiving first and second electrical output signals from said distributor, and a curve tracer for receiving said output signals from said outputs and producing a graphical representation of them along cartesian coordinates, said signal distributor comprising two identical differential amplifiers and a distributing device, each of said Amplifiers having a pair of symmetrical input channels and an output channel, and said distributing device having an input channel and a pair of output channels, each output channel of said distributing device being connected to one of the input channels of a different one of said amplifiers, said distributing device supplying to each of its output channels a signal proportional to the signal received at its input channel.
Claim 2
Dependent Claim
137 words
An electronic device comprising a signal distributor, three inputs for supplying three electrical input signals to said distributor, two outputs for receiving first and second electrical output signals from said distributor, and a curve tracer for receiving said output signals from said outputs and producing a graphical representation of them along cartesian coordinates, said signal distributor comprising two identical differential amplifiers and a distributing device, each of said Amplifiers having a pair of symmetrical input channels and an output channel, and said distributing device having an input channel and a pair of output channels, each output channel of said distributing device being connected to one of the input channels of a different one of said amplifiers, said distributing device supplying to each of its output channels a signal proportional to the signal received at its input channel.
Claim 3
Dependent Claim
24 words
A device according to claim 1, in which the two output channels and the input channel of the distributing device are connected directly together.
Claim 4
Dependent Claim
96 words
A device according to claim 1, in which the distributing device comprises two identical slider-potentiometers, connected in parallel by their two ends, the input channel of the distributing device corresponding to the two sliders, and one of the two output channels of the distributing device corresponding to one of the ends common to the two potentiometers and to one of the sliders, the other to the same slider and to the other end common to the two potentiometers, the two sliders being coupled together for simultaneous actuation, each in the appropriate direction, either manually or mechanically.
Claim 5
Dependent Claim
66 words
A device according to claim 1 in which the distributing device comprises a transformer having a primary including at least one primary winding and a secondary including at least two secondary windings, one at least of the primary windings corresponding to the input channel of the distributing device and two at least of the secondary windings corresponding each to an output channel of the distributing device.
Claim 6
Dependent Claim
36 words
A device according to claim 4, in which the relative arrangement of the primary and of the secondary is variable by mechanical translation or rotation of one of the primary and secondary relative to the other.
Claim 7
Dependent Claim
54 words
A device according to claim 5, in which the transformer includes a selsyn comprising a rotor and a stator, each provided with at least one winding, the winding of the rotor and the winding of the stator corresponding one to the primary of the transformer and the other to the secondary of the transformer.
Claim 8
Dependent Claim
116 words
An electronic device comprising a signal distributor, three inputs for supplying three electrical input signals to said distributor, and two outputs for receiving first and second electrical output signals from said distributor, said signal distributor comprising two identical differential amplifiers and a distributing device, each of said amplifiers having a pair of symmetrical input channels and an output channel, and said distributing device having an input channel and a pair of output channels, each output channel of said distributing device being connected to one of the input channels of a different one of said amplifiers, said distributing device supplying to each of its output channels a signal proportional to the signal received at its input channel.
Claim 9
Dependent Claim
116 words
An electronic device comprising a signal distributor, three inputs for supplying three electrical input signals to said distributor, and two outputs for receiving first and second electrical output signals from said distributor, said signal distributor comprising two identical differential amplifiers and a distributing device, each of said amplifiers having a pair of symmetrical input channels and an output channel, and said distributing device having an input channel and a pair of output channels, each output channel of said distributing device being connected to one of the input channels of a different one of said amplifiers, said distributing device supplying to each of its output channels a signal proportional to the signal received at its input channel.
Claim 10
Dependent Claim
24 words
A device according to claim 7 in which the two output channels and the input channel of the distributing device are connected directly together.
Claim 11
Dependent Claim
93 words
A device according to claim 7, in which the distributing device comprises two identical slider potentiometers, connected in parallel by their two ends, the input channel of the distributing device corresponding to the two sliders, and the two output channels of the distributing device corresponding one to one of the ends common to the two potentiometers and to one of the sliders, the other to the same slider and to the other end common to the two potentiometers, the two sliders being coupled together, each in the appropriate direction, either manually or mechanically.
Claim 12
Dependent Claim
66 words
A device according to claim 7, in which the distributing device comprises a transformer having a primary including at least one primary winding and a secondary including at least two secondary windings, one at least of the primary windings corresponding to the input channel of the distributing device, and two at least of the secondary windings each corresponding to an output channel of the distributing Device.
Claim 13
Dependent Claim
34 words
A device according to claim 10, in which the relative arrangement of the primary and of the secondary is variable by mechanical translation or rotation of one primary and secondary relative to the other.
Claim 14
Dependent Claim
50 words
A device according to claim 11, in which the transformer consists of a selsyn having a rotor and stator, each provided with at least one winding, the winding of the rotor and the winding of the stator corresponding one to the transformer primary, and the other to the transformer secondary.
Claim 15
Dependent Claim
105 words
Signal distributing apparatus for transforming at least three input analog signals, the amplitude of each of which corresponds to a value of a respective independent input parameter, into two output corrdinate signals for a representation in a two axis coordinate system, including at least three distributor input means receiving the said input signals, two distributor output means supplying the said output signals, first signals combining means coupling two of the input means to one of the output means, and second signal combining means coupling another two of the input means to the other output means, each of said signal combining means including differential amplifier means.
Claim 16
Dependent Claim
105 words
Signal distributing apparatus for transforming at least three input analog signals, the amplitude of each of which corresponds to a value of a respective independent input parameter, into two output corrdinate signals for a representation in a two axis coordinate system, including at least three distributor input means receiving the said input signals, two distributor output means supplying the said output signals, first signals combining means coupling two of the input means to one of the output means, and second signal combining means coupling another two of the input means to the other output means, each of said signal combining means including differential amplifier means.
Claim 17
Dependent Claim
28 words
Apparatus as claimed in claim 13, wherein at least one of said input means is coupled to a respective differential input of each of said differential amplifier means.
Claim 18
Dependent Claim
16 words
Apparatus as claimed in claim 14, wherein said one of said input means includes a selsyn.
References Cited (Backward Citations)
US2648061A
Cited
US2578970A
Cited
US3519997A
Cited
US3145474A
Cited
US3465135A
Cited
US3422537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |