Patent US3943337A successfully refreshed from Google Patents.
US3943337A
Expired / Lapsed
US
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Photoelectric punched card reading device
Assignee: Panasonic Holdings Corp
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Filing: 1974-04-01
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Granted: 1976-03-09
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Expires: 1994-04-01
Abstract
Abstract A photoelectric punched card reading device adapted to insert the punched card by hand, for reading the punched card photoelectrically in a static state comprising a matrix of light sensors each adapted to be in register with a hole in a punched card, an aperture mask in close contact with the light sensor matrix a card loading section having, a punched card insertion slot for holding a punched card in correct position with respect to the light sensor matrix and aperture mask, and a light source for uniformly illuminating the light sensor matrix, wherein the card loading section, the light sensor matrix and the light source are assembled integrally.
Inventors
- 👤 Toshio Yamashita
- 👤 Toshiro Kotake
- 👤 Nobuo Hasegawa
- 👤 Manabu Yoshida
- 👤 Saburo Kitamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:44
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10841
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A photoelectric punched card reading device comprising an integral combination of a main body including a card loading section and an aperture mask having a plurality of holes corresponding to perforated holes on cards inserted in said loading section, said card loading section and said aperture mask being assembled integrally; a light sensor matrix plate including a printed circuit board and a plurality of light sensors having diode characteristics arranged on said board, the arrangement of the light sensors comprising a matrix corresponding to the holes in the aperture mask, wherein a plurality of bus bars are arranged in lines and rows, each of said light sensors being connected between a line and a row of said plurality of bus bars and each of said bus bars having a terminal at the edge face of said board; and a light source box including a plurality of lamps and a reflector for illuminating each of said sensors with uniform and parallel light beams.
Claim 2
Dependent Claim
162 words
A photoelectric punched card reading device comprising an integral combination of a main body including a card loading section and an aperture mask having a plurality of holes corresponding to perforated holes on cards inserted in said loading section, said card loading section and said aperture mask being assembled integrally; a light sensor matrix plate including a printed circuit board and a plurality of light sensors having diode characteristics arranged on said board, the arrangement of the light sensors comprising a matrix corresponding to the holes in the aperture mask, wherein a plurality of bus bars are arranged in lines and rows, each of said light sensors being connected between a line and a row of said plurality of bus bars and each of said bus bars having a terminal at the edge face of said board; and a light source box including a plurality of lamps and a reflector for illuminating each of said sensors with uniform and parallel light beams.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |