Robert Lawrence Monroe

US Patent:

5987079, Nov 16, 1999

Filed:

Nov 15, 1996

Appl. No.:

8/749885

Inventors:

Logan Scott - Breckenridge CO
Robert Monroe - Colorado Springs CO

Assignee:

Omnipoint Corporation - Colorado Springs CO

International Classification:

H04L 700

US Classification:

375354

Abstract:

In a first embodiment of the invention, a concatenated preamble code is formed by a kronecker product between two subcodes of the same or different lengths. The subcodes have favorable correlation properties and may be Barker codes, minimum peak sidelobe codes, Gold codes, Kasami codes, Bozta codes, or other codes. At the receiver a two-stage processor is used to detect the concatenated preamble code. The two-stage processor comprises a series of two filters, one of which is preferably a mismatched filter. In another aspect of the invention, a repeated codeword preamble is formed from a series of the same repeated short subcode. The short subcode may be an augmented or truncated odd-length code. At the receiver a single matched filter is preferably used to generate a series of spikes separated by the period of the subcode. An alert/confirm detector non-coherently adds together individual correlation spikes and reject false alarms.

US Patent:

6987755, Jan 17, 2006

Filed:

Mar 22, 2001

Appl. No.:

09/815859

Inventors:

Robert L. Monroe - Colorado Springs CO, US
Narayan P. Menon - Colorado Springs CO, US
Francis A. Gay - San Diego CA, US

Assignee:

Siemens Communications, Inc. - Boca Raton FL

International Classification:

H04L 12/28

US Classification:

370351, 370328, 370338

Abstract:

A method for providing user notification includes generating a mobile-terminated message containing at least a portion of information to be provided to a mobile station. The method also includes communicating the mobile-terminated message to a base station. The base station is operable to communicate the mobile-terminated message to the mobile station. The method further includes determining if the mobile station acknowledges successful receipt of the mobile-terminated message. In addition, the method includes generating a mobile-originated message containing at least a portion of the information for communication to a public network if the mobile station fails to acknowledge successful receipt of the mobile-terminated message. The public network is operable to communicate the mobile-originated message to the mobile station.

US Patent:

7116938, Oct 3, 2006

Filed:

Dec 26, 2002

Appl. No.:

10/329958

Inventors:

Robert L. Monroe - Colorado Springs CO, US
Randolph L. Durrant - Colorado Springs CO, US
Krishnan Rajamani - San Diego CA, US
Gordon Chinn - San Jose CA, US
James P. Kardach - Saratoga CA, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04B 7/00

US Classification:

455 412, 4554351, 4554352, 455450, 455455, 4555501, 4555521, 4555531, 370338, 370345, 370466

Abstract:

Methods and apparatus are disclosed for mitigating radio frequency interference between transceiver systems within an electronic device.

US Patent:

7194283, Mar 20, 2007

Filed:

Aug 14, 2002

Appl. No.:

10/218401

Inventors:

James P. Kardach - Saratoga CA, US
Gordon Chinn - San Jose CA, US
Randy Durrant - Colorado Springs CO, US
Krishnan Rajamani - San Diego CA, US
Robert L. Monroe - Colorado Springs CO, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04M 1/00
H04B 1/00

US Classification:

455552, 375130

Abstract:

Methods and apparatus are disclosed for communicating via a radio channel to reduce radio frequency (RF) interference between transceiver systems within an electronic device.

US Patent:

20020111166, Aug 15, 2002

Filed:

Feb 12, 2001

Appl. No.:

09/782100

Inventors:

Robert Monroe - Colorado Springs CO, US

Assignee:

Opuswave Network, Inc.

International Classification:

H04Q007/20

US Classification:

455/435000, 455/450000, 455/434000

Abstract:

A method for selecting a preferred cell in a wireless communication system is provided that includes broadcasting cell reselection parameters from the preferred cell. The cell reselection parameters include a cell reselection offset and a timer parameter. The cell reselection offset and the timer parameter comprise values such that a cell reselection criterion for the preferred cell is greater than cell reselection criteria for non-preferred cells. A location update request is received from a mobile device. A determination is made regarding whether the mobile device is authorized. The location update from the mobile device is accepted when the mobile device is authorized.

US Patent:

59870796, Nov 16, 1999

Filed:

Nov 15, 1996

Appl. No.:

8/749885

Inventors:

Logan Scott - Breckenridge CO
Robert Monroe - Colorado Springs CO

Assignee:

Omnipoint Corporation - Colorado Springs CO

International Classification:

H04L 700

US Classification:

375354

Abstract:

In a first embodiment of the invention, a concatenated preamble code is formed by a kronecker product between two subcodes of the same or different lengths. The subcodes have favorable correlation properties and may be Barker codes, minimum peak sidelobe codes, Gold codes, Kasami codes, Bozta codes, or other codes. At the receiver a two-stage processor is used to detect the concatenated preamble code. The two-stage processor comprises a series of two filters, one of which is preferably a mismatched filter. In another aspect of the invention, a repeated codeword preamble is formed from a series of the same repeated short subcode. The short subcode may be an augmented or truncated odd-length code. At the receiver a single matched filter is preferably used to generate a series of spikes separated by the period of the subcode. An alert/confirm detector non-coherently adds together individual correlation spikes and reject false alarms.

US Patent:

61544868, Nov 28, 2000

Filed:

Dec 31, 1998

Appl. No.:

9/224481

Inventors:

Logan Scott - Breckenridge CO
Robert Monroe - Colorado Springs CO

Assignee:

Omnipoint Corporation - Colorado Springs CO

International Classification:

A61F 206
H04L 2730

US Classification:

375142

Abstract:

In a first embodiment of the invention, a concatenated preamble code is formed by a kronecker product between two subcodes of the same or different lengths. The subcodes have favorable correlation properties and may be Barker codes, minimum peak sidelobe codes, Gold codes, Kasami codes, Boztas codes, or other codes. At the receiver a two-stage processor is used to detect the concatenated preamble code. The two-stage processor comprises a series of two filters, one of which is preferably a mismatched filter. In another aspect of the invention, a repeated codeword preamble is formed from a series of the same repeated short subcode. The short subcode may be an augmented or truncated odd-length code. At the receiver a single matched filter is preferably used to generate a series of spikes separated by the period of the subcode. An alert/confirm detector non-coherently adds together individual correlation spikes and reject false alarms.

US Patent:

62822284, Aug 28, 2001

Filed:

Mar 20, 1997

Appl. No.:

8/821611

Inventors:

Robert Monroe - Colorado Springs CO

Assignee:

Xircom, Inc. - Thousand Oaks CA

International Classification:

H03H 730

US Classification:

375 14

Abstract:

A technique for modulating and demodulating CPM spread spectrum signals and variations of CPM spread spectrum signals uses a set of codes or multiple sets of codes that reduce cross-correlation interference. A transmitter divides a signal data stream into I and Q data streams, independently modulates the I and Q data streams using CPM or a related technique, and superposes the plurality of resultants for transmission. A receiver receives the superposed spread spectrum signal, simultaneously attempts to correlate for I and Q chip sequences, and interleaves the correlated I and Q data streams into a unified signal data stream. In one embodiment the receiver separates the received spread spectrum signal into real and imaginary parts, attempts to correlate both real and imaginary parts for a plurality of chip sequences, and combines separate correlation signals into a unified signal data stream. In other embodiments single-bit or multi-bit digitization of the received spread spectrum signal is carried out prior to correlation. In another embodiment the transmitter differentially phase encodes the information to be transmitted, and the receiver decodes the phase-encoded information.