William J Mccracken

55898912, Dec 31, 1996

May 17, 1994

8/245382

William P. McCracken - Garland TX
Neal Cooper - Coppell TX

Texas Instruments Incorporated - Dallas TX

H04N 563

348730

The synchronized transformer-coupled power supply circuit includes a transformer 20; an input power signal coupled to a primary winding 22 of the transformer 20; voltage regulators 48-53 coupled to secondary windings 24 and 26 of the transformer 20; and a start-up circuit 10 for coupling the input power signal directly to one of the voltage regulators 48-51 until the transformer 20 reaches a desired operating level.

53350154, Aug 2, 1994

Oct 30, 1992

7/969668

Alan N. Cooper - Coppell TX
William P. McCracken - Garland TX
Jaroslav Hynecek - Richardson TX

Texas Instruments Incorporated - Dallas TX

H04N 314

348302

The dynamic range of an image array photosite is improved by, first, turning on a column clamp transistor having a source coupled to a photosite transistor source and a drain coupled to a photosite transistor drain, wherein the column clamp transistor is turned on by a column clamp transistor gate voltage; then decreasing a current supplied to a column sense line below a quiescent value, wherein the column sense line is coupled to the photosite transistor source; then turning on the photosite transistor by a photosite transistor gate voltage; then turning off the photosite transistor and the column clamp transistor at substantially the same time; then increasing the current above the quiescent value; and then returning the current to the quiescent value.

54712459, Nov 28, 1995

May 19, 1994

8/245933

Alan N. Cooper - Coppell TX
William P. McCracken - Garland TX
Jaroslav Hynecek - Richardson TX

Texas Instruments Incorporated - Dallas TX

H04N 314

348302

An image array with improved dynamic range has at least one photosite, at least one column sense line and at least one column clamp transistor. A source of the photosite is coupled to the column sense line. A source of the column clamp transistor is coupled to the photosite source. A drain of the column clamp transistor is coupled to a drain of the photosite. A gate of the column clamp transistor is provided for application of a. phi. sub. cc signal. The. phi. sub. cc signal is coupled through a capacitance to the column sense line.