James Jinho An

US Patent:

7852759, Dec 14, 2010

Filed:

Feb 5, 2007

Appl. No.:

11/671166

Inventors:

David S. Stephenson - San Jose CA, US
Lu Qian - Solon OH, US
Bretton Lee Douglas - San Jose CA, US
James S. An - Sunnyvale CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 11/00
H04L 12/26
H04J 3/16

US Classification:

370230, 370252, 370465

Abstract:

In one embodiment, a method includes receiving a call admission request; in a first state, applying a first call access control (CAC) algorithm to the call admission request; in a second state, applying a second CAC algorithm to the call admission request; and transition between the first state and the second state based on at least one attribute of a radio frequency (RP) environment.

US Patent:

8201207, Jun 12, 2012

Filed:

Dec 15, 2008

Appl. No.:

12/334777

Inventors:

James S. An - Sunnyvale CA, US
Hui Sun - San Jose CA, US
De Fu Li - Wayland MA, US
Keil Brewer - San Jose CA, US
John J. Downey - Apex NC, US
Chrisanto D. Leano - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04N 7/173

US Classification:

725111, 370225, 370252, 370397, 370399, 375219, 375222, 709223, 709224

Abstract:

Disclosed are apparatus and methods for managing upstream channels on a per cable modem basis. In certain embodiments, one or more thresholds are defined for each of a plurality of upstream logical channels of a headend system for receiving data from a plurality of cable modems (or other types of access nodes). Each defined threshold corresponds to a measurable parameter of the corresponding upstream logical channel. One or more metrics are collected for each cable modem of each upstream logical channel. It is determined whether to downgrade a selected cable modem to a selected one of the logical channels that has a lower performance level than the selected cable modem's current logical channel. Such downgrade determination is based on whether the selected cable modem's collected one or more metrics have failed a condition of the one or more defined thresholds and whether a percentage of a total of the cable modems of such current logical channel that have failed a condition for the one or more defined thresholds is less than a predefined percentage level. The selected cable modem is then caused to move from the current logical channel to the selected logical channel when the percentage of the total cable modems that have failed is below a predefined level if such selected logical channel is available.

US Patent:

20180034490, Feb 1, 2018

Filed:

Oct 11, 2017

Appl. No.:

15/729767

Inventors:

- San Jose CA, US
Denis Downey - Pleasanton CA, US
James An - Sunnyvale CA, US
Koen Van Renterghem - Lovendegem, BE

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04B 1/10
H04J 11/00
H04L 27/26
H04L 25/03

Abstract:

Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress exciser in removing the ingress noise may be provided.

US Patent:

20150098534, Apr 9, 2015

Filed:

Oct 8, 2013

Appl. No.:

14/048101

Inventors:

- San Jose CA, US
Denis Downey - Pleasanton CA, US
James An - Sunnyvale CA, US
Koen Van Renterghem - Lovendegem, BE

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04B 1/10
H04L 27/14

US Classification:

375350, 375346

Abstract:

Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress exciser in removing the ingress noise may be provided.