Michael D Scholten

US Patent:

7304952, Dec 4, 2007

Filed:

May 21, 2002

Appl. No.:

10/151792

Inventors:

Michael D. Scholten - Westford MA, US

Assignee:

Applied Micro Circuits Corporation - San Diego CA

International Classification:

G06F 11/00
H04J 1/16
H04L 1/00
H04L 12/26

US Classification:

370235, 370229, 3702301, 370231, 370232

Abstract:

In a technique for performing flow control in a wide-area network, a user-specified flow control message such as a Pause message is provisioned at a first node, and a user-specified flow control message filter is provisioned at a second node coupled to the first node. At the first node, the availability of a buffer for data received from the second node is monitored, and in response to a predetermined availability condition, the provisioned flow control message is sent to the second node. In a Pause/Resume protocol, the buffer may be monitored for an Almost Full condition, and the flow control message may be a Pause message indicating that the first node should suspend transmission. The second node compares messages from the first node against the flow control message filter. Upon detecting the flow control message from the first node, the second node takes a predetermined flow control action with respect to the transmission of data to the first node. In the case of a Pause/Resume protocol, the flow control action may be to stop transmission for a specified period.

US Patent:

20030169756, Sep 11, 2003

Filed:

Mar 5, 2002

Appl. No.:

10/092064

Inventors:

Michael Scholten - Westford MA, US

Assignee:

APPLIED MICRO CIRCUITS CORPORATION

International Classification:

H04L012/56

US Classification:

370/412000, 370/478000

Abstract:

A system to provide fractional bandwidth data transmission includes a network processor, physical layer device, or link layer device {“data device”) and a plurality of link layer devices that are coupled to a plurality of input-output ports. The link layer devices are coupled in a serial daisy chain fashion and pass data via a plurality of data channels. The first linked layer device is coupled to the data device and receives data therefrom and the last linked layer device is coupled to the data device and transmits data thereto forming a ring network that includes all of the link layer devices and the data device. Data received from the data device is contained in data packets that contain a destination identifier and the data. Each link layer device receives input data packets and separates the data packets based on the destination identifier contained therein. Data packets having a destination identifier corresponding to one of the plurality of input-output ports coupled to that particular linked layer device are diverted to the identified input-output port. The remaining data, and any data generated by that link layer device, is provided to the next adjacent down-stream link layer device. Data flow control is provided in an upstream direction from one link layer device to the next adjacent up-stream link layer device as a plurality of status indicators that correspond to the plurality of data channels. Each link layer device is responsive to the plurality of status indicators by not transmitting data on data channels having a corresponding status indicator indicative that no data is to be transmitted.

US Patent:

20200026006, Jan 23, 2020

Filed:

Sep 18, 2017

Appl. No.:

16/336311

Inventors:

- Duncan SC, US
Scott Prescott - Belmont NH, US
Dale Eddy - Gilford NH, US
Michael Scholten - Westford MA, US

International Classification:

G02B 6/38

Abstract:

Optical fiber adapters and connectors are provided. An optical fiber adapter includes an adapter body, the adapter body extending along a longitudinal axis between a first end and a second end and comprising a first adapter portion which includes the first end and a second adapter portion which includes the second end. Each of the first adapter portion and the second adapter portion is one of a male adapter portion or a female adapter portion. The optical fiber adapter further includes a ferrule disposed within the adapter body, the ferrule extending along the longitudinal axis between a first end and a second end, and a thin-film filter provided on one of the first end or the second end of the ferrule, wherein the thin-film filter limits the wavelengths of light transmitted therethrough to within a predetermined wavelength range.

US Patent:

20160197672, Jul 7, 2016

Filed:

Jul 22, 2014

Appl. No.:

14/443806

Inventors:

- Duncan SC, US
Michael SCHOLTEN - Westford MA, US

Assignee:

AFL Telecommunications LLC - Duncan SC

International Classification:

H04B 10/079
H04B 10/071

Abstract:

A method of calculating optical return loss (ORL) in a fiber network includes injecting a plurality of pulses of light at a known first power level into the fiber network, determining a location at which end reflection is detected, measuring a second power level of each of a plurality of returned pulses of light, measuring a third power level of a pulse of light returned from the determined location, and calculating ORL based on the first power level, the second power level and the third power level.