David W Orr

US Patent:

7327845, Feb 5, 2008

Filed:

Nov 18, 2003

Appl. No.:

10/717168

Inventors:

David E. Orr - Vancouver WA, US

Assignee:

Xtendwave, Inc. - Dallas TX

International Classification:

H04K 1/00

US Classification:

380270, 380255, 455 39, 455 73, 367 76, 367117

Abstract:

An apparatus and method is disclosed for establishing a one-time cryptographic pad between a communicating pair, a communicating pair comprising a pair of transmitter-receivers, each of the pair having a plurality of cryptographic devices in common. The communicating pair also store previously exchanged messages and transmissions, a transmission comprising secure data exchanged by the pair that is independent of message content. The first transmitter-receiver randomly selects a cryptographic device and a previous transmission or message that has been sent to the second transmitter-receiver. The first transmitter-receiver also randomly selects a reference to a message or transmission previously sent by the second transmitter-receiver. The first transmitter-receiver encrypts the previously sent transmission or message and the reference to the message or transmission previously sent by the second transmitter-receiver and sends to the second transmitter-receiver. The second transmitter-receiver discovers the encryption device used by the first transmitter-receiver, verifies the message or transmission sent by the first transmitter-receiver, and uses the decrypted reference to access the previously sent transmission or message, then uses the discovered encryption device to encrypt the previously sent transmission or message and sends to the first transmitter-receiver.

US Patent:

7333665, Feb 19, 2008

Filed:

Jun 23, 2004

Appl. No.:

10/876269

Inventors:

David E. Orr - Vancouver WA, US

Assignee:

Xtendwave, Inc. - Dallas TX

International Classification:

G06K 9/00

US Classification:

382240, 382232

Abstract:

A method for encoding, transmitting, and receiving signals utilizes adaptive wavelet packet trees. A transmitter accepts a binary data stream assumed to be random. At the transmitter the data is parsed from a serial bit stream into several parallel streams. Within each of the parallel bit streams symbols are formed from the bits. Signals are created from each symbol by up-sampling. These signals modulate low-pass and high-pass filters that are derived from a wavelet packet transform (the wavelet and scaling functions, or, equivalently the low-pass and high-pass analysis filters). The filters are paired—one high-pass with one low-pass. The steps recited above are recursively repeated logN times for a signal of length N. The resulting signal is transmitted to the receiver. At the receiver, the steps recited above are reversed at the receiver to recover symbols, with the up-sampled signal down-sampled to remove inserted zeroes.

US Patent:

7394844, Jul 1, 2008

Filed:

May 19, 2004

Appl. No.:

10/849535

Inventors:

David E. Orr - Vancouver WA, US

Assignee:

XtendWave, Inc. - Dallas TX

International Classification:

H04B 1/00

US Classification:

375135, 375229, 375295, 708300, 708311

Abstract:

Wavelet filters computed from a wavelet transform are used for encoding, transmitting, receiving, and decoding spread spectrum signals on multiple parallel frequency channels. The transmitter encodes the data stream via a mapping to a basis set of wavelets which are orthogonal across the time domain. The spread spectrum data is parsed from a serial bit stream to several parallel streams. The number of bits per symbol need not remain constant. Signals are created from each symbol by first up sampling by inserting zeros between successive symbols. These signals are passed through a bank of low-pass and high-pass filters derived from a wavelet packet transform. The resulting signal is transmitted in the base band of the transmission system, or transmitted by modulating the carrier of the transmission system. At the receiver, the steps are reversed to recover the symbols. Symbol decisions are made through any one of a number of methods.

US Patent:

7787545, Aug 31, 2010

Filed:

Jan 12, 2004

Appl. No.:

10/756197

Inventors:

David Orr - Vancouver WA, US
Mark M Westerman - Longiven TX, US

Assignee:

XtendWave, Inc. - Dallas TX

International Classification:

H04K 1/10
H04L 27/28

US Classification:

375260, 708300

Abstract:

Wavelet filters computed from a wavelet transform are used as a means of pulse shaping binary data transmitted and received over multiple parallel channels. At the transmitter the data is parsed from a serial bit stream to several parallel streams. Within each of the parallel bit streams symbols are formed. Signals are created from each symbol by up-sampling by inserting zeros between successive symbols. These signals are passed through a bank of low-pass and high-pass filters derived from a wavelet packet transform. The filters are paired: one high-pass with a low-pass. The ordering is alternated to preserve “natural” frequency ordering. These steps are repeated for this set of signals until only one signal remains. The remaining signal is transmitted in the base band of the transmission system or they are transmitted by modulating the carrier of the transmission system. At the receiver the steps are reversed to recover symbols.

US Patent:

8144803, Mar 27, 2012

Filed:

Apr 18, 2008

Appl. No.:

12/106161

Inventors:

David E. Orr - Vancouver WA, US

Assignee:

XW, LLC - Allen Park MI

International Classification:

H04B 15/00

US Classification:

375285, 375316, 375317, 375350, 375346, 375343, 375296, 375287, 375259, 375284, 375219, 375224, 375229

Abstract:

A method for inverting telecommunication channel distortion by adaptive wavelet lifting. The distortion signal is analyzed using wavelet lifting and the inverse filter is computed. Coefficients of the inverse filter are used to either compute a transmission pre-filter or to update the transmitted message.

US Patent:

7362816, Apr 22, 2008

Filed:

Apr 28, 2003

Appl. No.:

10/425019

Inventors:

David E. Orr - Vancouver WA, US

Assignee:

Xtendwave, Inc. - Dallas TX

International Classification:

H04B 15/00

US Classification:

375285, 375296, 375350, 375358, 375346, 34824099, 708300

Abstract:

A method for inverting telecommunication channel distortion by adaptive wavelet lifting. The distortion signal is analyzed using wavelet lifting and the inverse filter is computed. Coefficients of the inverse filter are used to either compute a transmission pre-filter or to update the transmitted message.

US Patent:

20050172152, Aug 4, 2005

Filed:

Jun 8, 2004

Appl. No.:

10/864091

Inventors:

David Orr - Vancouver WA, US

International Classification:

G09C003/00

US Classification:

713201000

Abstract:

An encoder-decoder is disclosed for embedding digital rights meta-data onto digital media, such as images, documents and sound. The encoder-decoder uses a cryptographic. key to control encoding and decoding. For example, in encoding, the cryptographic key controls a cryptographic embedding of a meta-data onto the media so that the message cannot be extracted from the media, unless one has a private key.