Patent US3614765A successfully refreshed from Google Patents.
US3614765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quotation board system
Assignee: Ultronic Systems Corp
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Filing: 1968-07-02
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Granted: 1971-10-19
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Expires: 1988-07-02
Abstract
Abstract A quotation board system for the display of prices of stocks, commodities and the like wherein messages are transferred from a central location to individual quotation board locations. Different stocks can be selected at each location for display using manually changeable stock identification characters and individual digit units for displaying prices.
Inventors
- 👤 George H Huber
- 👤 Eugene I Gertler
- 👤 Dennis W Habgood
- 👤 John A Clarrocchi
- 👤 Walter A Richman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/04; G09G3/045; G06; G06Q; G06Q40/00; G06Q40/04; H; H04; H04L; H04L12/00; H04L12/02; H04L12/16; H04L12/18; H04L12/1804
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
335 words
Apparatus adapted to control the extent and direction of rotation of a single reversible electric motor which in turn rotates an endless belt having a set of spaced apart digits a... n thereon, the set containing n different integers arranged in an ordered sequence, to index any selected first digit at a display station and thereafter to index a second digit to said station, said apparatus minimizing the time required to rotate the belt to index the second digit for display by rotating the belt in one direction or another to minimize belt movement, said apparatus comprising: first means to produce a first unidirectional voltage of given polarity and having any one of n different discrete values, each value representing a different digit, said first voltage designating said first digit; second means to produce a second unidirectional voltage of like polarity and having any one of n different discrete values, each value representing a different digit, said second voltage designating said second digit; third means for comparing the first and second voltages to produce a control voltage having a first fixed null value when the first and second voltages Are equal, said control voltage having a range or values differing from the null value and dependent upon the difference between the first and second voltages when the first and second voltages are unequal; fourth means responsive to said control voltage and coupled to said motor to cause the motor to rotate in one direction to a position at which the second digit is indexed when the first and second voltages are unequal and the value of the control voltage exceeds that of a fixed reference voltage and to cause said motor to rotate in the opposite direction to a position at which the second digit is indexed when the first and second voltages are unequal and the value of the control voltage falls below that of said reference voltage, said motor remaining in fixed position without rotation when the first and second voltages are equal.
Claim 2
Dependent Claim
335 words
Apparatus adapted to control the extent and direction of rotation of a single reversible electric motor which in turn rotates an endless belt having a set of spaced apart digits a... n thereon, the set containing n different integers arranged in an ordered sequence, to index any selected first digit at a display station and thereafter to index a second digit to said station, said apparatus minimizing the time required to rotate the belt to index the second digit for display by rotating the belt in one direction or another to minimize belt movement, said apparatus comprising: first means to produce a first unidirectional voltage of given polarity and having any one of n different discrete values, each value representing a different digit, said first voltage designating said first digit; second means to produce a second unidirectional voltage of like polarity and having any one of n different discrete values, each value representing a different digit, said second voltage designating said second digit; third means for comparing the first and second voltages to produce a control voltage having a first fixed null value when the first and second voltages Are equal, said control voltage having a range or values differing from the null value and dependent upon the difference between the first and second voltages when the first and second voltages are unequal; fourth means responsive to said control voltage and coupled to said motor to cause the motor to rotate in one direction to a position at which the second digit is indexed when the first and second voltages are unequal and the value of the control voltage exceeds that of a fixed reference voltage and to cause said motor to rotate in the opposite direction to a position at which the second digit is indexed when the first and second voltages are unequal and the value of the control voltage falls below that of said reference voltage, said motor remaining in fixed position without rotation when the first and second voltages are equal.
Claim 3
Dependent Claim
17 words
Apparatus as set froth in claim 1 wherein said set consists of digits zero through nine inclusive.
Claim 4
Dependent Claim
37 words
Apparatus as set forth in claim 2 wherein each of the first and second voltages attains any one of ten discrete values, the values changing in equal increments as the digits represented thereby change in integral increments.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |