Thomas R Day

US Patent:

20060222187, Oct 5, 2006

Filed:

Apr 1, 2005

Appl. No.:

11/097623

Inventors:

Scott Jarrett - Hudson WI, US
Thomas Day - Little Canada MN, US

International Classification:

H04R 3/00

US Classification:

381092000

Abstract:

A system and associated methods for processing three-dimensional audio information for surround or stereo applications include a microphone assembly having three substantially coincident microphone elements. The microphone elements include one bidirectional-pattern microphone and two unidirectional microphones. The unidirectional-pattern microphones may generally face front and rear directions and align substantially with a null plane of the bidirectional element. As such, the output signals of the three microphones may be processed by a decoder into multiple channels, including, for example: left (L), center (C), right (R), surround left (SL), surround center (SC), surround right (SR), and height (H). Accordingly, the system may be used, for example, to capture sounds in three dimensions using a compact, small form-factor, single integrated microphone. One or more aspects of the invention may be capable of processing, for example, hemispheric sonic images through existing and future stereo or surround playback systems.

US Patent:

20070015110, Jan 18, 2007

Filed:

May 24, 2006

Appl. No.:

11/420024

Inventors:

Kai Zhang - Warsaw IN, US
Ryan Donahoe - San Diego CA, US
Thomas Day - Carlsbad CA, US
Hallie Brinkerhuff - Winona Lake IN, US
Jeffrey Bassett - Vista CA, US

Assignee:

ZIMMER DENTAL, INC. - Carlsbad CA

International Classification:

A61C 8/00

US Classification:

433173000, 433201100

Abstract:

A prosthetic dental device comprised of a composite material including a polymer material and a ceramic material mixed within the polymer material. In one embodiment, the ceramic fillers are substantially, homogeneously dispersed within the polymer material. In one embodiment, the ceramic material is bonded to the polymer material through a coupling agent. In addition, the prosthetic dental device can be comprised of a different composite material. This composite material includes a ceramic matrix having pores and an organic material infiltrated into the pores. To construct the ceramic matrix, ceramic particles, a binder material, and a porogen material are mixed to create a composite material which is then molded and heated to create a substantially rigid ceramic structure. At least some of the binder material and the porogen material are evaporated during the heating step to create pores in the matrix which are filled with the organic material.