Kenneth H Shamburger

US Patent:

7844292, Nov 30, 2010

Filed:

Apr 26, 2007

Appl. No.:

11/789912

Inventors:

Kenneth H. Shamburger - Greenville TX, US

International Classification:

H04Q 7/20

US Classification:

455518, 455519, 455500, 455517, 4554261, 455403, 370270, 370328, 370329, 370343, 375130, 375146, 375147, 375242, 375244

Abstract:

Systems and methods are disclosed for in-band control signaling using bandwidth distributed encoding to send modulated control carrier signals with analog voice signals in the same voice frequency band. A transmitting device generates control carrier signals spread over a voice frequency band, combines them with analog voice signals in the voice frequency band, and transmits the combined signals over a communication channel. The transmitting device can use a control signal encoder to apply a pseudo-random code to the control carrier signal in order to spread it over a voice frequency band. As such, control signals are sent as in-band signals without significantly degrading the voice signals. A receiving device receives the combined signals within the voice frequency band. The receiving device demodulates the combined signal and uses matching pseudo-random codes to determine if a control signal has been sent.

US Patent:

20090175158, Jul 9, 2009

Filed:

Jan 3, 2008

Appl. No.:

11/969008

Inventors:

Kenneth Shamburger - Greenville TX, US

Assignee:

L3 Communications Integrated Systems, L.P. - Greenville TX

International Classification:

H04J 11/00

US Classification:

370203

Abstract:

A data coding/decoding system for use with a plurality of users includes an encoder, a transmitter, a receiver, and a decoder. The encoder encodes data to be transmitted over a shared physical transmission medium using an orthogonal or convolution code associated with a receiving user. The transmitter transmits the encoded data. Generally, data may be transmitted simultaneously by a plurality of users. The receiver receives a stream of encoded data and forwards it to the decoder, which decodes it based on the orthogonal or convolution code of the receiving user.