US6184511B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric conversion apparatus
Assignee: Canon Inc
•
Filing: 1999-04-14
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Granted: 2001-02-06
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Expires: 2019-04-14
Abstract
Abstract A photoelectric conversion apparatus including (A) a semiconductor integrated circuit, for photoelectrically converting an incident optical signal, that includes a first temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a change in temperature and a detection circuit for detecting temperature information, (B) a device arranged outside of the semiconductor integrated circuit, and (C) at least one second temperature dependent element which is arranged inside the device and has a characteristic which exhibits a predetermined change in accordance with a change in temperature. The detection circuit detects temperature information of the first temperature dependent element and temperature information of the at least one second temperature dependent element.
Inventors
- 👤 Yuichiro Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:15
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/28
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
61 words
A semiconductor integrated circuit comprising on a single semiconductor substrate: photoelectric conversion means for photoelectrically converting an incident optical signal; a temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a chance in temperature; and detection means for detecting temperature information of said temperature dependent element and temperature information received from outside said semiconductor integrated circuit.
Claim 2
Dependent Claim
61 words
A semiconductor integrated circuit comprising on a single semiconductor substrate: photoelectric conversion means for photoelectrically converting an incident optical signal; a temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a chance in temperature; and detection means for detecting temperature information of said temperature dependent element and temperature information received from outside said semiconductor integrated circuit.
Claim 3
Dependent Claim
42 words
A circuit according to claim 1 , wherein said detection means comprises a constant current circuit for supplying a constant current to said temperature dependent element and an element outside said semiconductor integrated circuit from which said detection means receives temperature information.
Claim 4
Dependent Claim
15 words
A circuit according to claim 1 , wherein said temperature dependent element comprises a resistor.
Claim 5
Dependent Claim
15 words
A circuit according to claim 1 , wherein said temperature dependent element comprises a diode.
Claim 6
Dependent Claim
114 words
A photoelectric conversion apparatus comprising: (A) a semiconductor integrated circuit that photoelectrically converts an incident optical signal, said circuit including: (a) a first temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a change in temperature; and (b) detection means for detecting temperature information; (B) a device arranged outside said semiconductor integrated circuit; and (C) at least one second temperature dependent element which is arranged inside said device and has a characteristic that exhibits a predetermined change in accordance with a chance in temperature, wherein said detection means detects temperature information of said first temperature dependent element and temperature information of said at least one second temperature dependent element.
Claim 7
Dependent Claim
114 words
A photoelectric conversion apparatus comprising: (A) a semiconductor integrated circuit that photoelectrically converts an incident optical signal, said circuit including: (a) a first temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a change in temperature; and (b) detection means for detecting temperature information; (B) a device arranged outside said semiconductor integrated circuit; and (C) at least one second temperature dependent element which is arranged inside said device and has a characteristic that exhibits a predetermined change in accordance with a chance in temperature, wherein said detection means detects temperature information of said first temperature dependent element and temperature information of said at least one second temperature dependent element.
Claim 8
Dependent Claim
16 words
An apparatus according to claim 5 , wherein said device includes a secondary image formation lens.
Claim 9
Dependent Claim
73 words
An apparatus according to claim 5 , wherein said detection means comprises a constant current source circuit, and detects temperature information by flowing a current from said constant current source circuit through said first temperature dependent element and said at least one second temperature dependent element, and measuring a potential difference generated between a terminal of said first temperature dependent element and a terminal of said at least one second temperature dependent element.
Claim 10
Dependent Claim
48 words
An apparatus according to claim 6 , further comprising means for correcting, in accordance with the detected temperature information, a change in an image signal caused by a change in focal length along with a change in shape corresponding to a temperature of said secondary image formation lens.
Claim 11
Dependent Claim
16 words
An apparatus according to claim 5 , wherein said first temperature dependent element comprises a resistor.
Claim 12
Dependent Claim
19 words
An apparatus according to claim 5 , wherein said at least one second temperature dependent element comprises a resistor.
Claim 13
Dependent Claim
16 words
An apparatus according to claim 5 , wherein said first temperature dependent element comprises a diode.
Claim 14
Dependent Claim
19 words
An apparatus according to claim 5 , wherein said at least one second temperature dependent element comprises a diode.
Claim 15
Dependent Claim
69 words
A semiconductor integrated circuit comprising on a single semiconductor substrate: a photoelectric converter arranged to receive an incident optical signal and provide an output signal; a temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a change in temperature; and a temperature information detector connected to said temperature dependent element and arranged for receiving temperature information from an element outside said semiconductor integrated circuit.
Claim 16
Dependent Claim
69 words
A semiconductor integrated circuit comprising on a single semiconductor substrate: a photoelectric converter arranged to receive an incident optical signal and provide an output signal; a temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a change in temperature; and a temperature information detector connected to said temperature dependent element and arranged for receiving temperature information from an element outside said semiconductor integrated circuit.
Claim 17
Dependent Claim
35 words
A circuit according to claim 13 , wherein said temperature information detector comprises a constant current circuit for supplying a constant current to said temperature dependent element and the element outside said semiconductor integrated circuit.
Claim 18
Dependent Claim
15 words
A circuit according to claim 13 , wherein said temperature dependent element comprises a resistor.
Claim 19
Dependent Claim
15 words
A circuit according to claim 13 , wherein said temperature dependent element comprises a diode.
Claim 20
Dependent Claim
127 words
A photoelectric conversion apparatus comprising: (A) a semiconductor integrated circuit that has a photoelectric converter arranged to receive an incident optical signal and provide an output signal, said circuit including: (a) a first temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a change in temperature; and (b) a temperature information detector that detects temperature information; (B) a device arranged outside said semiconductor integrated circuit; and (C) at least one second temperature dependent element which is arranged inside said device and has a characteristic that exhibits a predetermined change in accordance with a change in temperature, wherein said temperature information detector detects temperature information of said first temperature dependent element and temperature information of said at least one second temperature dependent element.
Claim 21
Dependent Claim
127 words
A photoelectric conversion apparatus comprising: (A) a semiconductor integrated circuit that has a photoelectric converter arranged to receive an incident optical signal and provide an output signal, said circuit including: (a) a first temperature dependent element having a characteristic which exhibits a predetermined change in accordance with a change in temperature; and (b) a temperature information detector that detects temperature information; (B) a device arranged outside said semiconductor integrated circuit; and (C) at least one second temperature dependent element which is arranged inside said device and has a characteristic that exhibits a predetermined change in accordance with a change in temperature, wherein said temperature information detector detects temperature information of said first temperature dependent element and temperature information of said at least one second temperature dependent element.
Claim 22
Dependent Claim
16 words
An apparatus according to claim 17 , wherein said device includes a secondary image formation lens.
Claim 23
Dependent Claim
72 words
An apparatus according to claim 17 , wherein said temperature information detector comprises a constant current circuit, and detects temperature information by flowing a current from said constant current circuit through said first temperature dependent element and said at least one second temperature dependent element, and measuring a potential difference generated between a terminal of said first temperature dependent element and a terminal of said at least one second temperature dependent element.
Claim 24
Dependent Claim
48 words
An apparatus according to claim 18 , further comprising means for correcting, in accordance with the detected temperature information, a change in an image signal caused by a change in focal length along with a change in shape corresponding to a temperature of said secondary image formation lens.
Claim 25
Dependent Claim
16 words
An apparatus according to claim 17 , wherein said first temperature dependent element comprises a resistor.
Claim 26
Dependent Claim
19 words
An apparatus according to claim 17 , wherein said at least one second temperature dependent element comprises a resistor.
Claim 27
Dependent Claim
16 words
An apparatus according to claim 17 , wherein said first temperature dependent element comprises a diode.
Claim 28
Dependent Claim
19 words
An apparatus according to claim 17 , wherein said at least one second temperature dependent element comprises a diode.
References Cited (Backward Citations)
US5412448A
Cited
US5914629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-02-06 | 2004-08-07 | 2005-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-02-06 | 2008-08-07 | 2009-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-02-06 | 2012-08-07 | 2013-02-06 | $7700.00 | Window Closed / Lapsed |