US4253753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data entering camera
Assignee: Ricoh Co Ltd
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Filing: 1979-11-19
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Granted: 1981-03-03
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Expires: 1999-11-19
Abstract
Abstract A camera capable of entering data indicated by a stop watch in a photographing film, together with the image of an object comprises a time counter which starts its operation by operating a shutter of the camera, and a display section for displaying the value counted by the time counter and also for entering the value in the photographing film. The display section has a memory circuit which is operated temporarily by a data entering signal, and the time counter has a monitor display comprising a memory circuit which is operated temporarily.
Inventors
- 👤 Akira Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:08
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/22; G03; G03B; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243; G03B2217/246
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
174 words
A camera which enters stop watch data on a photographing film, comprising a camera body, film positioning means for positioning an undeveloped photographic film within said camera body, film exposure means including a shutter for exposure of said film under operator control, a stop watch time counter within said camera body and having a display means positioned within the camera body so that the stop watch time may be recorded on said film, start means to start the timing of the stop watch, intermediate lap means which is automatically responsive to operation of the shutter and which exposes the film to the display means synchronous with the shutter operation and without stopping the stop watch timing; manual reset stop means to stop the timing of the stop watch under operator control and unsynchronous with shutter operation; and means to synchronize the operation of the said shutter with the said start means so that the film is exposed synchronously with the shutter operation at the start of the stop watch timing and during its timing.
Claim 2
Dependent Claim
174 words
A camera which enters stop watch data on a photographing film, comprising a camera body, film positioning means for positioning an undeveloped photographic film within said camera body, film exposure means including a shutter for exposure of said film under operator control, a stop watch time counter within said camera body and having a display means positioned within the camera body so that the stop watch time may be recorded on said film, start means to start the timing of the stop watch, intermediate lap means which is automatically responsive to operation of the shutter and which exposes the film to the display means synchronous with the shutter operation and without stopping the stop watch timing; manual reset stop means to stop the timing of the stop watch under operator control and unsynchronous with shutter operation; and means to synchronize the operation of the said shutter with the said start means so that the film is exposed synchronously with the shutter operation at the start of the stop watch timing and during its timing.
Claim 3
Dependent Claim
23 words
A camera as in claim 1, wherein said display means comprises a memory circuit which is operated temporarily by a data entering signal.
Claim 4
Dependent Claim
20 words
A camera as in claim 1, wherein said time counter includes a monitor display section viewable by the camera operator.
Claim 5
Dependent Claim
19 words
A camera as in claim 3, wherein said monitor display section comprises a memory circuit which is operated temporarily.
Claim 6
Dependent Claim
33 words
A camera as in claim 1, wherein the stop watch time counter is a solid-state electronic digital device and means to synchronize is a data entering pulse produced by operation of the shutter.
Claim 7
Dependent Claim
33 words
A camera as in claim 1, wherein said intermediate lap means includes a latch circuit connected between the stop watch and the display to temporarily store the time at the intermediate shutter operation.
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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |