US6686949B2
Expired / Lapsed
US
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Electronic endoscope system
Assignee: Pentax Corp
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Filing: 2001-01-12
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Granted: 2004-02-03
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Expires: 2021-01-12
Abstract
Abstract In an electronic endoscope system, a scope has a solid-state image sensor provided at a distal end thereof to generate image-pixel signals. An image-signal processing unit produces a video signal based on the image-pixel signals. An alteration system alters a peak-to-peak level of a synchronizing-signal component of the video signal. An manual setting system operates the alteration system to perform the alteration of the level of the synchronizing-signal component. An indicator system indicates the degree of alteration to the level of the synchronizing-signal component during the operation of the manual setting system.
Inventors
- 👤 Hiroyuki Kobayashi
- 👤 Hideo Sugimoto
- 👤 Kohei Iketani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:13
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/18; H04N7/183; A; A61; A61B; A61B1/00; A61B1/00002; A61B1/00004; A61B1/00009; A61B1/06; A61B1/0638; A61B1/0661; A61B1/0684; H04N23/00; H04N23/50; H04N23/555
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
122 words
An electronic endoscope system including a scope having a solid-state image sensor provided at a distal end thereof to generate image-pixel signals, and an image-signal processing unit that produces a video signal based on the image-pixel signals, which system comprises: an alteration system that alters a peak-to-peak level of a synchronizing-signal component of said video signal; an manual setting system that manually operates said alteration system to perform the alteration of the peak-to-peak level of said synchronizing-signal component; an indicator system that indicates a degree of the alteration of the peak-to-peak level of said synchronizing-signal component during the operation of said manual setting system; and an output terminal that outputs said synchronizing-signal component having the peak-to-peak level defined by said alteration system.
Claim 2
Dependent Claim
122 words
An electronic endoscope system including a scope having a solid-state image sensor provided at a distal end thereof to generate image-pixel signals, and an image-signal processing unit that produces a video signal based on the image-pixel signals, which system comprises: an alteration system that alters a peak-to-peak level of a synchronizing-signal component of said video signal; an manual setting system that manually operates said alteration system to perform the alteration of the peak-to-peak level of said synchronizing-signal component; an indicator system that indicates a degree of the alteration of the peak-to-peak level of said synchronizing-signal component during the operation of said manual setting system; and an output terminal that outputs said synchronizing-signal component having the peak-to-peak level defined by said alteration system.
Claim 3
Dependent Claim
36 words
An electronic endoscope system as set forth in claim 1 , wherein said manual setting system is provided in a housing of said image-signal processing unit so as to be accessible by a suitable manual tool.
Claim 4
Dependent Claim
54 words
An electronic endoscope system as set forth in claim 1 , wherein said alteration system comprises a voltage-controlled amplifier, an amplification factor of which is regulated in accordance with a level of a voltage signal applied thereto, and said manual setting system comprises a variable resistor that adjusts the level of said voltage signal.
Claim 5
Dependent Claim
60 words
An electronic endoscope system as set forth in claim 1 , wherein said indicator system includes an indicator lamp visually provided at a suitable location of a housing of said image-signal processing unit, and a lamp driver system that controls lighting of said indicator lamp in accordance with the degree of alteration of the peak-to-peak level of said synchronizing-signal component.
Claim 6
Dependent Claim
58 words
An electronic endoscope system as set forth in claim 4 , wherein said indicator lamp includes at least two light-emitting sources, and said driver system controls not only turn-ON and turn-OFF of said light-emitting sources but also brightness of said light-emitting sources in accordance with the degree of the alteration of the peak-to-peak level of said synchronizing-signal component.
Claim 7
Dependent Claim
20 words
An electronic endoscope system as set forth in claim 5 , wherein said respective light-emitting sources emit different monochromatic light.
Claim 8
Dependent Claim
64 words
An electronic endoscope system as set forth in claim 4 , wherein said lamp driver system includes an ON/OFF switch element that controls supply of electrical power from said lamp driver system to said indicator lamp, and a timer system that turns OFF said ON/OFF switch element after a predetermined time is elapsed from a time at which said ON/OFF switch is turned ON.
Claim 9
Dependent Claim
78 words
An electronic endoscope system as set forth in claim 1 , wherein said alteration system comprises a voltage-controlled amplifier, an amplification factor of which is regulated in accordance with a level of a voltage signal applied thereto, and said manual setting system comprises a variable resistor that adjusts the level of said voltage signal, said manual setting system being provided in a housing of said image-signal processing unit so as to be accessible by a suitable manual tool.
Claim 10
Dependent Claim
60 words
An electronic endoscope system as set forth in claim 8 , wherein said indicator system includes an indicator lamp visually provided at a suitable location of the housing of said image-signal processing unit, and a lamp driver system that controls lighting of said indicator lamp in accordance with the degree of alteration of the peak-to-peak level of said synchronizing-signal component.
Claim 11
Dependent Claim
57 words
An electronic endoscope system as set forth in claim 9 , wherein said indicator lamp includes at least two light-emitting sources, and said driver system controls not only turn-ON and turn-OFF of said light-emitting sources but also brightness of said light-emitting sources in accordance with the degree of alteration of the peak-to-peak level of said synchronizing-signal component.
Claim 12
Dependent Claim
20 words
An electronic endoscope system as set forth in claim 10 , wherein said respective light-emitting sources emit different monochromatic light.
Claim 13
Dependent Claim
69 words
An electronic endoscope system as set forth in claim 9 , wherein said lamp driver system includes a tool-detection system that detects whether access to said manual setting system by said manual tool is made, and said lamp driver system is allowed to feed electric power to said indicator lamp only when the access to said manual setting system by said manual tool is detected by said tool-detection system.
Claim 14
Dependent Claim
65 words
An electronic endoscope system as set forth in claim 12 , wherein said lamp driver system further includes an ON/OFF switch element that controls the supply of the electrical power from said lamp driver system to said indicator lamp, and said ON/OFF switch is turned ON only when the access to said manual setting system by said manual tool is detected by said tool-detection system.
Claim 15
Dependent Claim
50 words
An electronic endoscope system as set forth in claim 1 , wherein said manual setting system includes a portion which is manually operated by a suitable manual tool, and which is arranged such that the manual tool is operable without interfering with a signal cable extending from said output terminal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-02-02 | 2007-08-04 | 2008-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-02-02 | 2011-08-04 | 2012-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-02-02 | 2015-08-04 | 2016-02-03 | $7700.00 | Window Closed / Lapsed |