Robert L Day

US Patent:

6658499, Dec 2, 2003

Filed:

Mar 23, 2001

Appl. No.:

09/815509

Inventors:

Robert A. Day - Manalapan NJ
Kamran Khederzadeh - League City TX
Kamal Patel - Edison NJ

Assignee:

Globespanvirata, Inc. - Red Bank NJ

International Classification:

G06F 1310

US Classification:

710 8, 710 10, 710 14, 710 15, 710 16, 710 17

Abstract:

A system and method for ADSL USB bandwidth negotiation are presented. The system comprises a modem that is configured to transfer data between an ADSL line and a USB bus and that is further configured to receive an ADSL line rate setting, submit an isochronous bandwidth request to a computer, reduce the isochronous bandwidth request in response to the availability of isochronous bandwidth, modify the ADSL line rate setting in response to the availability of isochronous bandwidth, and modify the USB bus transfer mode in response to the availability of isochronous bandwidth. The method comprises steps of receiving an ADSL line rate setting, submitting an isochronous bandwidth request to a computer, reducing the isochronous bandwidth request in response to the availability of isochronous bandwidth, modifying the ADSL line rate setting in response to the availability of isochronous bandwidth, and modifying the USB bus transfer mode of the ADSL USB modem in response to the availability of isochronous bandwidth.

US Patent:

7978756, Jul 12, 2011

Filed:

Apr 7, 2008

Appl. No.:

12/098696

Inventors:

Hemant Samdani - New Delhi, IN
Kunal Raheja - Noida, IN
Rahul Garg - Faridabad Haryana, IN
Patrick Duvaut - Tinton Falls NJ, US
Amitkumar Mahadevan - Eatontown NJ, US
Robert A. Day - Manalapan NJ, US
Robin Levonas - Holmdel NJ, US

Assignee:

Ikanos Communications, Inc. - Fremont CA

International Classification:

H04B 3/46
H04B 17/00
H04Q 1/20

US Classification:

375227, 375284, 375285, 375346, 375228, 375257, 379416, 702 69

Abstract:

Systems and methods for monitoring impulse noise are described. At least one embodiment is a method, which comprises detecting whether impulse noise is present and in response to detecting the presence of impulse noise, performing time domain analysis to determine whether one or more impulse noise sources are present based on minimum interarrival time and maximum impulse length. The method further includes performing frequency domain analysis to estimate frequencies associated with the one or more impulse noise sources and based on the time domain analysis and frequency domain analysis, providing a total number of impulse noise sources and frequencies associated with the impulse noise sources. In this regard, the embodiments described herein provide dual-speed monitoring of impulse noise in the form of short-term and long-term monitoring. The use of dual-speed monitoring ensures that dynamic changes in the impulse noise environment are quickly addressed and also ensures better characterization of multiple impulse noise sources in order to provide better impulse noise protection.

US Patent:

20110296226, Dec 1, 2011

Filed:

May 8, 2011

Appl. No.:

13/103072

Inventors:

Massimo Sorbara - Freehold NJ, US
Sigurd Schelstraete - Menlo Park CA, US
Robert A. Day - Jackson NJ, US
Peter D. Keller - Tinton Falls NJ, US

Assignee:

IKANOS COMMUNICATIONS, INC. - Fremont CA

International Classification:

G06F 1/12

US Classification:

713400

Abstract:

Systems and methods for synchronizing a clock at a customer premises equipment (CPE) location with a master clock at a central office (CO) location are described. One embodiment is a method that comprises receiving, by a time-of-day transmission convergence (ToD-TC) module in the CPE, ToD information relating to the master clock. Based on the received information, time stamps are applied to reference data samples. The method further comprises transporting the ToD information by transporting the reference data samples with applied time stamps and utilizing time stamps of the reference data samples to synchronize the CPE clock with the master clock.

US Patent:

52068544, Apr 27, 1993

Filed:

Sep 24, 1991

Appl. No.:

7/766234

Inventors:

William L. Betts - St. Petersburg FL
Robert A. Day - Manalapan NJ

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04B 323

US Classification:

372 321

Abstract:

In a full-duplex modem, correlation of an echo estimate signal with an echo-canceled signal is used to determine the presence or absence of a remote signal.

US Patent:

45997195, Jul 8, 1986

Filed:

Jun 18, 1984

Appl. No.:

6/621517

Inventors:

Robert N. Breen - Lanoka Harbor NJ
Robert A. Day - Middletown NJ
Victor B. Lawrence - Holmdel NJ
Michael R. Zboray - East Brunswick NJ

Assignee:

AT&T Information Systems Inc. - Holmdel NJ

International Classification:

H04L 514

US Classification:

370 24

Abstract:

Half-duplex switched carrier operation is emulated in a full-duplex voiceband data transmission system by utilizing predetermined signal indications in each channel to signal the initiation and termination of user data in that channel and thus to control the Receive Line Signal lead extending to the terminals at respective ends of the transmission channel. The signal indication which signals the initiation of transmission is illustratively two scrambled spaces inserted into an idle-state sequence of continuous scrambled marks. The signal indication which signals the termination of transmission is illustratively a stream of 65 unscrambled marks.