Dalsa Corporation

William D Washkurak

Savvas G Chamberlain

Paul Thomas Jenkins

Brian C Doody

Sheldon Hood

Mike Miethig

Daryl Prince

A switched CCD electrode photodetector includes a substrate made of first semi-conductor type, a drain made of a second semi-conductor type formed in the substrate, a collection well made of the second semi-conductor type formed in the substrate, and a switched CCD electrode resistor formed between the drain and the collection well. The collection well is operable in cooperation with a photosensitive region. The switched CCD electrode resistor includes a channel region defined in the substrate and having a first end disposed adjacent to the collection well and a second end disposed adjacent to the drain. The switched CCD electrode resistor also includes a first electrode insulatively spaced from and disposed over the first end and a second electrode insulatively spaced from and disposed over the second end.

Switched CCD electrode photodetector

A dual mode high frequency output structure for a CCD image sensor has a differencing mode for determining a difference between a charge of successive charge packets of a first pulse train outputted from a shift register of the CCD image sensor and a non-differencing mode for outputting a video signal from the shift register of the CCD image sensor. The structure comprises a first series of CCD gates, a second series of CCD gates, an output well potential, a first clock for creating and shifting a first barrier and gradient in the first series of CCD gates for transferring a charge packet from the shift register to the output well, a second clock for creating and shifting a second barrier and gradient in the second series of CCD gates for transferring the charge packet from the output well potential to an output drain, an amplifier for amplifying an output voltage from the output well potential, a pre-set clock for pre-setting the amplifier to a pre-set voltage while the charge packet is in the output well potential until the charge packet is transferred therefrom. An asynchronous pass of successive charge packets through the output well produces the output voltage at the output well which is proportional to the difference between charges of the successive charge packets. A synchronous pass of the charge packets produces the output voltage for the video signal.

Dual mode on-chip high frequency output structure with pixel video

A wide dynamic range photodetector comprising a photosensitive region for generating signal electrons in response to being illuminated, a collection region for storing the signal electrons generated within the photosensitive region, a shift register for receiving and outputing the signal electrons from the collection region, and a transfer gate intermediate the photosensitive region and the collection region for alternately facilitating transfer of the signal electrons from the photosensitive region for storage in the collection region, and isolating the photosensitive region from the collection region while the signal electrons are being output via the shift register.

High photosensitivity and high speed wide dynamic range CCD image sensor

An electronically and mechanically expandable camera in which a tubular metal casing having removable front and back plates has a CCD image sensor mounted on a secondary front plate removably received within the casing for a direct thermal path to the casing. A driver board is removably receivable at a position between the secondary front plate and the back plate. A logic board is removably receivable at a position between the driver board and the back plate. The camera's functions may be expanded or altered by adding option electronic board modules between the logic board and the back plate of the camera, or by reconfiguring the logic board or by adding a different image sensor. All of the components within the camera, all of the enclosure elements and all of the mounting hardware used in the camera can be easily and conveniently changed as desired.

Growing community of inventors

Waterloo, Canada

William D Washkurak