US4270852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound device incorporated camera
Assignee: Canon Inc
•
Filing: 1979-02-06
•
Granted: 1981-06-02
•
Expires: 1999-02-06
Abstract
Abstract A sound device incorporated camera has an indication signal forming circuit for producing a warning signal, a signal indicative of the fact that the operation of the self-timer is in progress, or the like, and a sound producing device for converting the output signal from said circuit to a sound.
Inventors
- 👤 Ryoichi Suzuki
- 👤 Isao Harigaya
- 👤 Takashi Uchiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
G; G03; G03B; G03B43/00; G03B17/00; G03B17/18; G03B7/00; G03B7/08; G03B7/091; G03B7/093
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
A photographic camera comprising: (a) warning signal source means for generating a first warning signal indicating an abnormal exposure value, and a second warning signal indicating an abnormal condition of a power source circuit; (b) priority means connected to the warning signal source means to generate an electrical signal corresponding to the warning signals applied from the warning signal source means, said priority means being designed to generate preferentially the second warning signal when the two warning signals are simultaneously generated from the warning signal source means; and (c) sound producing means functionally connected to the priority means for converting the electrical signal from the priority means to an audible signal.
Claim 2
Dependent Claim
111 words
A photographic camera comprising: (a) warning signal source means for generating a first warning signal indicating an abnormal exposure value, and a second warning signal indicating an abnormal condition of a power source circuit; (b) priority means connected to the warning signal source means to generate an electrical signal corresponding to the warning signals applied from the warning signal source means, said priority means being designed to generate preferentially the second warning signal when the two warning signals are simultaneously generated from the warning signal source means; and (c) sound producing means functionally connected to the priority means for converting the electrical signal from the priority means to an audible signal.
Claim 3
Dependent Claim
46 words
A photographic camera according to claim 1, wherein said priority means includes a priority encoder having an input terminal connected to the warning signal source means and an output terminal and a decoder having an input terminal connected to the output terminal of said priority encoder.
Claim 4
Dependent Claim
35 words
A photographic camera according to claim 2, wherein said priority encoder has a plurality of input terminals of which respective terminals receive a signals corresponding to the warning signals from said warning signal source means.
Claim 5
Dependent Claim
33 words
A photographic camera according to claim 1, wherein said sound producing means includes a memory chip to store a plurality of the warning signals and a speaker operatively connected to the memory chip.
Claim 6
Dependent Claim
17 words
A photographic camera according to claim 4, wherein said memory chip includes at least one read-only memory.
Claim 7
Dependent Claim
16 words
A photographic camera according to claim 5, wherein said read-only memory is a programmable read-only memory.
Claim 8
Dependent Claim
21 words
A photographic camera according to claim 1, wherein said priority means includes a logic circuit having input terminals and output terminals.
Claim 9
Dependent Claim
34 words
A photographic camera according to claim 1, wherein said sound producing means includes a magnetic recording member for storing various kinds of warning signals and a speaker operatively connected to the magnetic recording member.
Claim 10
Dependent Claim
109 words
A photographic camera comprising: (a) warning signal source means for generating a first signal warning indicating an abnormal exposure value and a second warning signal indicating that a film is not charged; (b) priority means connected to the warning signal source means to generate an electrical signal corresponding to the warning signals applied from the warning signal source means, said priority means being designed to generate preferentially the second warning signal when the two warning signal are simultaneously generated from the warning signal source means; and (c) sound producing means functionally connected to the priority means for converting the electrical signal from the priority means to an audible signal.
Claim 11
Dependent Claim
109 words
A photographic camera comprising: (a) warning signal source means for generating a first signal warning indicating an abnormal exposure value and a second warning signal indicating that a film is not charged; (b) priority means connected to the warning signal source means to generate an electrical signal corresponding to the warning signals applied from the warning signal source means, said priority means being designed to generate preferentially the second warning signal when the two warning signal are simultaneously generated from the warning signal source means; and (c) sound producing means functionally connected to the priority means for converting the electrical signal from the priority means to an audible signal.
Claim 12
Dependent Claim
113 words
A photographic camera comprising: (a) warning signal source means for generating a first warning signal indicating an abnormal condition of a power source circuit and a second warning signal indicating that a film is not charged; (b) priority means connected to the warning signal source means to generate an electrical signal corresponding to the warning signals applied from the warning signal source means, said priority means being designed to generate preferentially the second warning signal when the two warning signals are simultaneously generated from the warning signal source means; and (c) sound producing means functionally connected to the priority means for converting the electrical signal from the priority means to an audible signal.
Claim 13
Dependent Claim
113 words
A photographic camera comprising: (a) warning signal source means for generating a first warning signal indicating an abnormal condition of a power source circuit and a second warning signal indicating that a film is not charged; (b) priority means connected to the warning signal source means to generate an electrical signal corresponding to the warning signals applied from the warning signal source means, said priority means being designed to generate preferentially the second warning signal when the two warning signals are simultaneously generated from the warning signal source means; and (c) sound producing means functionally connected to the priority means for converting the electrical signal from the priority means to an audible signal.
References Cited (Backward Citations)
US3582949A
Cited
US3673332A
Cited
US3776625A
Cited
US3879704A
Cited
US4051489A
Cited
US4069397A
Cited
US3998045A
Cited
US4015237A
Cited
US4122306A
Cited
US4114995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-01 | 1984-12-01 | 1985-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-01 | 1988-12-01 | 1989-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-01 | 1992-12-01 | 1993-06-02 | $7700.00 | Window Closed / Lapsed |