Richard D Wiley

US Patent:

20140033895, Feb 6, 2014

Filed:

Jul 10, 2013

Appl. No.:

13/939122

Inventors:

Richard Wiley - El Cajon CA, US
Toby L. Ahrens - San Diego CA, US

International Classification:

G10D 13/02

US Classification:

84421

Abstract:

A drum supporting component is provided for maintaining the legs of a drum or cymbal elevated from an underlying support surface. The elevation positioning decouples the legs from the underlying surface and increases the amount of sound generated from the drum or cymbal.

US Patent:

57969850, Aug 18, 1998

Filed:

Apr 29, 1996

Appl. No.:

8/639393

Inventors:

Peter R. O'Brien - Austin TX
Richard Paul Wiley - Round Rock TX

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G06F 1750

US Classification:

395500

Abstract:

A data processing system which calculates timing delays in a circuit having a switching device (3). A computer processor (22) receives input describing a circuit and calculates the timing delays for each switching device (3) or stage. To perform each calculation the computer processor (22) models the circuit incorporating effective resistance R. sub. eff (24), Miller capacitance C. sub. mu. (7), and an associated Miller coefficient. The Miller coefficient is a defined by the behaviour of the model. The model is then reduced to a set of equations, the variables are determined, and the timing delay calculated. In one embodiment, successive stages are calculated to locate timing violations in circuit design. In alternate embodiments, models such as CRYSTAL (4) or the Sakurai model are enhanced by Miller capacitance considerations, however many other models may be used.

US Patent:

20150170623, Jun 18, 2015

Filed:

Mar 2, 2015

Appl. No.:

14/635959

Inventors:

Richard Wiley - El Cajon CA, US
Toby L. Ahrens - San Diego CA, US

International Classification:

G10D 13/02

Abstract:

A drum-supporting component is provided for maintaining a drum or cymbal acoustically separated from an underlying support surface. A body of the component is configured to maintain the drum separated from the underlying support thereby increasing the sound generated from the drum which is projected therefrom.