Robert D Mcgowan

US Patent:

6754599, Jun 22, 2004

Filed:

Dec 21, 2000

Appl. No.:

09/740868

Inventors:

Gary L. Swoboda - Sugarland TX
Robert A. McGowan - Monroeville PA

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G01R 2500

US Classification:

702 79, 702117, 702118, 702122

Abstract:

An intergrated circuit constructed for easy debug and emulation includes a function clock circuit and an operation circuit operating in synchronism with a function clock. A trace trigger circuit triggers trace operation upon detection of a predetermined condition within the operation circuit. A FIFO buffer receives the trace data which is exported via a trace port. The integrated circuit includes an oscillator clock circuit which may be synchronized with the function clock or a reference clock. The trace trigger circuit and the FIFO input operate on the function clock. The FIFO output and the trace port operate on the oscillator clock. Thus the trace may operate all on the function clock or be split between the function clock and the reference clock. Accordingly, the trace export can operate at a frequency independent of the operation circuit.

US Patent:

53484703, Sep 20, 1994

Filed:

Jan 29, 1993

Appl. No.:

8/011232

Inventors:

Nancy J. McGowan - Pittsburgh PA
Robert A. McGowan - Pittsburgh PA

International Classification:

A61C 100
A61C 300
A61B 124

US Classification:

433 30

Abstract:

A fiber optic cable attached alongside or extending through the handle of a dental mirror to provide a source of illumination to the mirror. An end of the fiber optic cable is projected towards the mirror. Such end is either flat, shaped as a lens or having a lens attached thereto.