Patent US2579338A successfully refreshed from Google Patents.
Patent EP0265271A2 successfully refreshed from Google Patents.
EP0265271A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electronic shutter for an electronic camera and method of utilizing a CCD image sensor as electronic shutter for such a camera
Assignee: Sony Corp
•
Filing: 1987-10-22
•
Granted: —
•
Expires: 2007-10-22
Abstract
Abstract A solid state imager device having an electronic shutter function, and suitable for use in video camera or an electronic still camera, has a semiconductor substrate (1) of a first conductivity type, a region (2) of second conductivity type formed on the substrate (1), and a signal charge accumulating region (3) formed on the surface side of the second conductivity type region (2). A predetermined voltage is applied to the substrate (1) of the first conductivity type, and the signal charges accumulated in the signal charge accumulating region (3) are discharged to the substrate (1), whereby the exposure time of the solid state imager device can be controlled.
Inventors
- 👤 Kazuya C/O Patent Division Yonemoto
- 👤 Yoshiaki C/O Patent Division Kagawa
- 👤 Kikue C/O Patent Division Ishikawa
- 👤 Tomoyuki C/O Patent Division Suzuki
- 👤 Masaharu C/O Patent Division Hamasaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:14
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/15; H10F39/153; H10F39/158
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
76 words
A solid state imager device comprising: a semiconductor substrate (1) of first conductivity type; a region (2) of second conductivity type formed on said substrate (1); and a signal charge accumulating region (3) formed on a surface side of said second conductivity type region; characterized by: means (16 to 18) for applying a predetermined voltage to said substrate (1) thereby to discharge signal charges accumulated in said signal charge accumulating region (3) to said substrate (1).
Claim 2
Dependent Claim
76 words
A solid state imager device comprising: a semiconductor substrate (1) of first conductivity type; a region (2) of second conductivity type formed on said substrate (1); and a signal charge accumulating region (3) formed on a surface side of said second conductivity type region; characterized by: means (16 to 18) for applying a predetermined voltage to said substrate (1) thereby to discharge signal charges accumulated in said signal charge accumulating region (3) to said substrate (1).
Claim 3
Dependent Claim
48 words
An imager device according to claim 1 wherein said predetermined voltage is applied to said substrate (1) within a horizontal blanking period so as to cause the signal charges accumulated in said signal charge accumulating region (3) to discharge to said substrate (1) within the horizontal blanking period.
Claim 4
Independent Claim
77 words
A method of utilizing a solid state imager device as an electronic shutter for an electronic camera, comprising the step of applying voltage potential across a semiconductor substrate (1) of a first conductivity type and a region (2) of a second conductivity type formed on said substrate (1), thereby to discharge signal charges accumulated in a signal charge accumulating region (3) formed on a surface side of said second conductivity type region (2) to said substrate (1).
Claim 5
Independent Claim
77 words
A method of utilizing a solid state imager device as an electronic shutter for an electronic camera, comprising the step of applying voltage potential across a semiconductor substrate (1) of a first conductivity type and a region (2) of a second conductivity type formed on said substrate (1), thereby to discharge signal charges accumulated in a signal charge accumulating region (3) formed on a surface side of said second conductivity type region (2) to said substrate (1).
Claim 6
Dependent Claim
43 words
A method according to claim 1 wherein said predetermined voltage is applied within a horizontal blanking period so as to cause said signal charges accumulated in said signal charge accumulating region (3) to discharge to said substrate (1) within said horizontal blanking period.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.