Michael J Luddy

US Patent:

6608825, Aug 19, 2003

Filed:

Jul 15, 1999

Appl. No.:

09/354042

Inventors:

Michael J. Luddy - Sea Cliff NY

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

H04J 316

US Classification:

370342, 370465, 370468

Abstract:

A CDMA communication system which prevents the transmission of data between communicating nodes until the data communication rate required by the communicating nodes has been completely established throughout the system selectively suppresses the confirmation tone that a receiving node sends to an originating node. The transmission of voice, facsimile or modem data is prevented until the communication path has been established at the desired communication rate. This permits the system to reliably transport encoded data at a plurality of data rates across a telecommunication system which may lack precise synchronization.

US Patent:

6741564, May 25, 2004

Filed:

Feb 28, 2002

Appl. No.:

10/087640

Inventors:

Michael J. Luddy - Sea Cliff NY

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

G01B 3108

US Classification:

370232, 370358, 370466, 370467, 370468

Abstract:

A method implemented by a base station for suppressing selective communications during communication rate modification, wherein the base station is coupled between first and said second communicating nodes, includes establishing a communication channel between said first and said second nodes at a first data rate; detecting a transmission from the first node on the channel; determining whether the transmission requires a change in data rates to a second data rate; switching the communication channel to said second data rate; and blocking transmissions from the second node until the second communication rate has been established.

US Patent:

6741609, May 25, 2004

Filed:

Feb 28, 2002

Appl. No.:

10/086664

Inventors:

Michael J. Luddy - Sea Cliff NY

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

H04J 316

US Classification:

370465, 370358, 370466, 370467, 370468, 370469, 370485, 370205

Abstract:

A method implemented by a subscriber unit for suppressing selective communications during communication rate modification, wherein the subscriber unit is coupled between first and the second communicating nodes, includes establishing a communication channel between the first and the second nodes at a first data rate; detecting a transmission from the first node on the channel; determining whether the transmission requires a change in data rates to a second data rate; switching the communication channel to the second data rate; and blocking transmissions from the second node until the second communication rate has been established.

US Patent:

6744781, Jun 1, 2004

Filed:

Feb 28, 2002

Appl. No.:

10/086666

Inventors:

Michael J. Luddy - Sea Cliff NY

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

H04J 316

US Classification:

370465, 370358

Abstract:

A base station which prevents the transmission of data between communicating nodes until the data communication rate required by the communicating nodes has been established selectively suppresses the confirmation tone that a receiving node sends to an originating node. The transmission of voice, facsimile or modem data is prevented until the communication path has been established at the desired communication rate. This permits the base station to reliably transport encoded data at a plurality of data rates without precise synchronization.

US Patent:

6801516, Oct 5, 2004

Filed:

Aug 9, 2000

Appl. No.:

09/635986

Inventors:

Gary Lomp - Centerpot NY
John Kowalski - Hempstead NY
Fatih Ozluturk - Port Washington NY
Avi Silverberg - Commack NY
Robert Regis - Huntington NY
Michael Luddy - Sea Cliff NY
Alexander Marra - New York NY
Alexander Jacques - Mineola NY

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

H04B 7216

US Classification:

370342, 370335, 370465

Abstract:

A spread-spectrum system having an assignor, a spread-spectrum processor, a call processor, and an information-channel-mode modifier. The assignor assigns each information signal arriving at the spread-spectrum system to a message-code signal. Each of the message-code signals supports a pre-determined information-channel rate. Several information signals have different channel rates, and each information signal is assigned according to the required channel rate. The spread-spectrum processor generates a pilot-code signal, and spread-spectrum processes the information signals with the message-code signals to generate a plurality of spread-spectrum processed-message signals, respectively. The message-code signals are synchronized to the pilot-code signal. The call processor provides a call-type signal corresponding to the information signal rate for the several information signals having several different channel rates. In response to the call-type signal, the information-channel-mode modifier changes a combination of the information signals and the message-code signals to support the several different channel rates for the several information signals having several different channel rates.

US Patent:

6831905, Dec 14, 2004

Filed:

Aug 9, 2000

Appl. No.:

09/634400

Inventors:

Gary Lomp - Centerpot NY
John Kowalski - Hempstead NY
Fatih Ozluturk - Port Washington NY
Avi Silverberg - Commack NY
Robert Regis - Huntington NY
Michael Luddy - Sea Cliff NY
Alexander Marra - New York NY
Alexander Jacques - Mineola NY

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

H04B 7216

US Classification:

370335, 370342

Abstract:

A spread spectrum system having an assignor, a spread-spectrum processor and a transmitter. The assignor assigns each arriving information signal to a message-code signal. Each message-code signal is different then other message-code signals. The spread-spectrum processor generates a pilot code signal and processes the information signals with the message-code signals to generate spread-spectrum process-message signals synchronized to the pilot-code signal. A transmitter combines the spread-spectrum process-message signals and the pilot-code signal to generate a CDM signal. The transmitter modulates the CDM signal with a carrier signal for transmission over the communications channel.

US Patent:

6965611, Nov 15, 2005

Filed:

Feb 28, 2002

Appl. No.:

10/086667

Inventors:

Michael J. Luddy - Sea Cliff NY, US

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

H04J003/16

US Classification:

370465, 370358, 370466, 370467, 370468, 370469, 370485, 370205

Abstract:

A subscriber unit which prevents the transmission of data between communicating nodes until the data communication rate required by the communicating nodes has been established selectively suppresses the confirmation tone that a receiving node sends to an originating node. The transmission of voice, facsimile or modem data is prevented until the communication path has been established at the desired communication rate. This permits the subscriber unit to reliably transport encoded data at a plurality of data rates without precise synchronization.

US Patent:

6985467, Jan 10, 2006

Filed:

Jan 10, 2001

Appl. No.:

09/757768

Inventors:

Gary Lomp - Centerpot NY, US
John Kowalski - Hempstead NY, US
Fatih Ozluturk - Port Washington NY, US
Avi Silverberg - Commack NY, US
Robert Regis - Huntington NY, US
Michael Luddy - Sea Cliff NY, US
Alexander Marra - New York NY, US
Alexander Jacques - Mineola NY, US

Assignee:

InterDigital Technology Corporation - Wilmington DE

International Classification:

H04B 7/216

US Classification:

370335, 370342, 370465

Abstract:

A method and system for rapidly acquiring a spreading code, used in a code division multiple access (CDMA) system. A first long code and a second long code, with each long code having a length of N chips, are generated. The first long code is different from the second long code. The first long code and the second long code are transmitted at a first phase angle and at a second phase angle, respectively, on a carrier signal, over a communications channel using radio waves. The first long code and the second long code may be transmitted at an in-phase (I) angle and at a quadrature-phase (Q) angle, respectively, on the carrier signal. From the communications channel, an I-phase acquisition circuit and a Q-phase acquisition circuit may acquire, in parallel, the first long code and the second long code from the I-phase angle and the Q-phase angle, respectively, of the carrier signal by searching, in parallel, N/2 chips, the first long code and the second long code.