US4023040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensing device using photocells, for color identification
Assignee: Weber Lichtsteuergerate Firma KG
•
Filing: 1975-05-07
•
Granted: 1977-05-10
•
Expires: 1995-05-07
Abstract
Abstract A sensing system, for use in the identification of colored indicia defined on a body in a series arrangement, includes at least one flash lamp means electrically energizable to produce a burst of light to illuminate at least one of the indicia at a high level compared to the ambient light level, at least one photo-electric means disposed to receive light reflected from at least one of the illuminated indicia and operative to produce a sensor signal for light having a predetermined color, and detector means coupled to the photo-electric means and operative to be programmed to produce a test signal when the sensor signal is within a predetermined class of signals.
Inventors
- 👤 Rudolf Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:45
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A sensing system, for use in the identification of colored indicia positioned on a body, comprising in combination: flash lamp means including a plurality of flash lamps each being energizable to produce a burst of light and being adapted to illuminate an associated one of said indicia, the number of said flash lamps corresponding to the maximum number of said indicia; photo-electric means associated with each one of said indicia of said maximum number; each of said photo-electric means being disposed to receive and sense light reflected from its associated indicium and operable to produce a first signal for light sensed having a predetermined color; voltage supply means coupled to said flash lamps and comprising a pulse generator operable to produce pulse signals to energize said flash lamps sequentially; and detector means coupled to each of said photo-electric means and operable to produce a second signal when said first signals are in a predetermined sequence of signals.
Claim 2
Dependent Claim
157 words
A sensing system, for use in the identification of colored indicia positioned on a body, comprising in combination: flash lamp means including a plurality of flash lamps each being energizable to produce a burst of light and being adapted to illuminate an associated one of said indicia, the number of said flash lamps corresponding to the maximum number of said indicia; photo-electric means associated with each one of said indicia of said maximum number; each of said photo-electric means being disposed to receive and sense light reflected from its associated indicium and operable to produce a first signal for light sensed having a predetermined color; voltage supply means coupled to said flash lamps and comprising a pulse generator operable to produce pulse signals to energize said flash lamps sequentially; and detector means coupled to each of said photo-electric means and operable to produce a second signal when said first signals are in a predetermined sequence of signals.
Claim 3
Dependent Claim
22 words
The sensing system as claimed in claim 1, further comprising coupling means operable for coupling said pulse signals to said detector means.
Claim 4
Dependent Claim
25 words
The sensing system as claimed in claim 1, wherein said detector means comprises display means operable to show visually the occurrence of said first signal.
References Cited (Backward Citations)
US3138783A
Cited
US3555852A
Cited
US3578976A
Cited
US3560758A
Cited
US3708676A
Cited
US3904872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |