David C Mccoy

US Patent:

20130308687, Nov 21, 2013

Filed:

May 20, 2013

Appl. No.:

13/897929

Inventors:

David McCoy - Melbourne FL, US

Assignee:

Avidyne Corporation - Lincoln MA

International Classification:

G01S 19/24

US Classification:

375150

Abstract:

In one embodiment, a correlator of a global positioning system receiver in a global positioning system receives a sample satellite signal. The correlator includes a signal comparator configured to receive the sample signal, a first normalized estimate signal, and a second normalized estimate signal. The signal comparator generates a first accumulated output and a second accumulated output. The first accumulated output represents the integration of a correlation of the sample signal and the first normalized estimate signal. The second accumulated output represents the integration of a correlation of the sample signal and the second normalized estimate signal. Using time-multiplexing, the high speed of a digital signal processing core is leveraged to perform calculations of the signal comparator and threshold comparator in real time.

US Patent:

50094670, Apr 23, 1991

Filed:

May 30, 1989

Appl. No.:

7/358814

Inventors:

David C. McCoy - Oviedo FL

International Classification:

A47C 754

US Classification:

297411

Abstract:

An adjustable armrest attachment for a secretarial chair has left and right elbow rests with depending posts independently selectively positionable within vertical channels formed in turned back outer ends of respective left and right, oppositely laterally extending bracket members. Superposed inner ends of the bracket members are attached to the chair by fasteners which pass through lateral slots to permit opposite lateral movement of the members to selectively vary the lateral spacing of the rests. In one embodiment the inner ends are attached by a bracket plate to a column that elevates a backrest at the rear of a seat. In another embodiment, the inner ends are attached by a knurled, manually manipulable knob to the underside of the seat. The rests are located to give the reduce antigravity stresses when the chair is pulled under a desk or table for raised hand operations, like typing.