Joseph P Whitaker

US Patent:

20130156215, Jun 20, 2013

Filed:

Dec 15, 2011

Appl. No.:

13/326962

Inventors:

Dallas Dwight Hickerson - Sharpsburg GA, US
Joseph Cecil Whitaker - Sharpsburg GA, US

Assignee:

Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America - Peachtree City GA

International Classification:

H04R 1/10

US Classification:

381 74

Abstract:

A method of modulating an infrared headphone interface signal includes providing a first audio signal having an analog audio value. A memory is provided having a plurality of locations and containing digital phase offset values. A clock signal having a clock frequency is provided. A second audio signal having a center carrier frequency that deviates with the analog audio value of the first audio signal is provided. An instantaneous value of the center carrier frequency is determined. The clock frequency is divided by the instantaneous carrier frequency value to calculate a number of samples per cycle. A number of location addresses in the memory is divided by the number of samples per cycle to calculate a memory access interval. The memory is accessed at addresses separated by the memory access interval. The digital phase offset values at the accessed memory addresses are used to reproduce the first audio signal.

US Patent:

20150319519, Nov 5, 2015

Filed:

Jun 17, 2015

Appl. No.:

14/741633

Inventors:

- Peachtree City GA, US
JOSEPH CECIL WHITAKER - SHARPSBURG GA, US

International Classification:

H04R 1/10

Abstract:

A method of modulating an infrared headphone interface signal includes providing a first audio signal having an analog audio value. A memory is provided having a plurality of locations and containing digital phase offset values. A clock signal having a clock frequency is provided. A second audio signal having a center carrier frequency that deviates with the analog audio value of the first audio signal is provided. An instantaneous value of the center carrier frequency is determined. The clock frequency is divided by the instantaneous carrier frequency value to thereby calculate a number of samples per cycle. A number of location addresses in the memory is divided by the number of samples per cycle to thereby calculate a memory access interval. The memory is accessed at addresses separated by the calculated memory access interval. The digital phase offset values at the accessed memory addresses are used to reproduce the first audio signal by use of headphones.

US Patent:

20150145409, May 28, 2015

Filed:

Nov 26, 2013

Appl. No.:

14/089872

Inventors:

- Peachtree City GA, US
Joseph C. Whitaker - Sharpsburg GA, US

Assignee:

Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America - Peachtree City GA

International Classification:

B60Q 3/02

US Classification:

315 77

Abstract:

A motor vehicle includes a processor having an interrupt input. A battery includes a positive terminal. A switch interconnects the positive terminal of the battery and the interrupt input of the processor. A first resistor interconnects the positive terminal of the battery and the interrupt input of the processor. A light emitting diode includes an input and an output. A second resistor interconnects the input of the light emitting diode and the interrupt input of the processor. A third resistor is connected in parallel with a series combination of the second resistor and the light emitting diode.