Christopher R Rutledge

US Patent:

6381055, Apr 30, 2002

Filed:

Apr 16, 1998

Appl. No.:

09/061534

Inventors:

Joel I. Javitt - Hillside NJ
Christopher Lee Rutledge - Somerset NJ

Assignee:

ATT Corp. - New York NY

International Classification:

H04B 1000

US Classification:

359159, 359152, 359169, 359170

Abstract:

Methods and apparatus for safe and reliable telecommunication using a telecommunication network that employs substantially unguided, free-space, point-to-point, electro-magnetic radiation are provided. Most methods include the use of a retro-reflector near a transceiver assembly. The retro-reflector can be used to rapidly calibrate, align, and/or realign one or more assemblies by reflecting a beam of light back toward its source, providing an opportunity for optical detection of the reflected beam.

US Patent:

6417947, Jul 9, 2002

Filed:

Oct 7, 1999

Appl. No.:

09/414138

Inventors:

Gregory Michael Durant - Neshanic Station NJ
Christopher Lee Rutledge - Somerset NJ

Assignee:

ATT Corp. - New York NY

International Classification:

H04B 1000

US Classification:

359155, 359159, 359172, 3561412

Abstract:

A free space light multibeam network bridge apparatus receives free space light beam communication signals from free space light communication devices and routes the free space light beam communication signals to other free space light communication devices via a free space light network or to non-free space light destination devices via a telecommunications network. The free space light multibeam network bridge apparatus identifies the source of a free space light beam communication signal based on the position of the free space light beam communication signal on a sensor.

US Patent:

6804226, Oct 12, 2004

Filed:

Mar 16, 1999

Appl. No.:

09/270407

Inventors:

Gregory Michael Durant - Neshanic Station NJ
Christopher Lee Rutledge - Somerset NJ
Edward Wronka - Morris Plains NJ

Assignee:

ATT Corp. - New York NY

International Classification:

H04L 1228

US Classification:

370355, 3703952, 370351, 370400, 379 9203

Abstract:

The present invention provides a method and apparatus for allowing the copper pair at each subscriber site to reappear at the CO. It also provides inter-connectivity between subscribers within a specified proximity, thereby allowing the subscribers to operate as a LAN. By placing a router between various Distributed Point of Presence Local Area Networks (DPOPLAN) and service provider that offer services such as Internet access, a large communication can easily be created.

US Patent:

7155126, Dec 26, 2006

Filed:

Mar 1, 2002

Appl. No.:

10/084997

Inventors:

Christopher Rutledge - Somerset NJ, US
Arul Arasan - North Brunswick NJ, US

Assignee:

Uhuru Networks - Somerset NJ

International Classification:

H04J 14/00

US Classification:

398 50, 398 56, 398 57, 398 49, 398 48, 398 45

Abstract:

A method and apparatus provide a network element and associated control system in a broadcast optical communications network, including an optical switch (switch fabric), to cross-connect selected wavelengths input to the switch to pre-determined output ports, under the control of a control (supervisory) channel for efficient upstream and downstream delivery of optical communications services. The network element includes an optical switch controller to monitor the communications traffic input to and output from the optical switch ports in order to dynamically change output port connections for the input wavelengths as controlled by the control channel.

US Patent:

59662298, Oct 12, 1999

Filed:

Jun 18, 1997

Appl. No.:

8/877667

Inventors:

Jeevan Prakash Dodley - Parsippany NJ
Christopher L. Rutledge - Somerset NJ

Assignee:

AT&T Corp. - New York NY

International Classification:

H04B 1004
H04B 1000

US Classification:

359187

Abstract:

An optical transmitter is provided for use in a free-space optical communications system. The transmitter has a laser source with a tunable wavelength and adjustable power. A beam splitter divides the output beam from the laser source. A first portion of the divided beam is transmitted to a remote receiver through the atmosphere. A second portion of the divided beam is passed through a local optical path to a local receiver. The local optical path may be either a portion of the atmosphere local to the transmitter or may be an atmospheric spectral attenuation simulator. Processing circuitry receives signals from the local receiver that indicate the amount of attenuation of the second portion of the beam in the local optical path. The processing circuitry may adjust the wavelength and power output of the laser source to optimize transmission of the first portion of the beam to the receiver based on the amount of the attenuation measured in the local optical path. The processing circuitry may also adjust the wavelength and power of the laser source based on weather data received from a weather data source.

US Patent:

57708509, Jun 23, 1998

Filed:

Apr 30, 1997

Appl. No.:

8/846937

Inventors:

Donald John Bowen - Madison NJ
Gregory M. Durant - Plainfield NJ
Christopher L. Rutledge - Somerset NJ

Assignee:

AT&T Corp - Middletown NJ

International Classification:

G01J 120

US Classification:

2502031

Abstract:

A system is provided for tracking a free-space optical communications beam. The incoming beam is split by a beam splitter. One portion of the incoming beam is focused onto a high-speed photodetector. Another portion of the incoming beam is passed through a target pattern optical element. A resulting target pattern is formed on a two-dimensional active pixel sensor array. The alignment of the system can be adjusted based on the position of the target pattern on the sensor array.

US Patent:

62053213, Mar 20, 2001

Filed:

Jan 2, 1997

Appl. No.:

8/775914

Inventors:

Christopher L. Rutledge - Somerset NJ

Assignee:

AT&T Corporation - New York NY

International Classification:

H04Q 710

US Classification:

455 312

Abstract:

A method and system for retrieving pages from a remote location. In one embodiment, pager users can access their pagers from a remote location, via a public switched telephone network, to retrieve messages (i. e. numeric, alphanumeric and voice messages) and/or perform any other pager operation by engaging in an interactive wireless dialogue with the pager via a public switched telephone network and the paging system, wherein the pager uses digital voice encoding techniques to provide verbal feedback to the remote user. The remote can dial the number of the individual pager from a remote location and enter a preprogrammed command sequence to initiate wireless dialogue with the pager. Once the wireless dialogue is initiated, the remote user can enter other pre-programmed commands to control the operation of the pager from the remote location (e. g. to retrieve messages sent to the pager).

US Patent:

58447059, Dec 1, 1998

Filed:

Feb 13, 1997

Appl. No.:

8/799885

Inventors:

Christopher L. Rutledge - Somerset NJ

Assignee:

AT&T Corp - Middletown NJ

International Classification:

H04B 1000

US Classification:

359167

Abstract:

The cells of a wireless communications system can be subdivided into smaller subcells, in each of which the available radio frequencies can be re-used to allow denser use of the system. To avoid having to run hard-wired communications links to broadcast antennas of the subcells, substantially unguided, free-space, optical communication is used between the antenna that formerly served the cell and the subcell antennas. The existing hard-wired connection from the central antenna to the remainder of the wireless communications system infrastructure continues to be used for communication to and from the cell.