ADSL modem apparatus and re-initialization method for ADSL modem apparatus

• US 7,295,600 B2
• Filed: 07/01/2002
• Issued: 11/13/2007
• Est. Priority Date: 10/01/2001
• Status: Expired due to Fees

• Current Assignee: Panasonic Communications Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Communications Company Limited (Panasonic Holdings Corporation)
• Inventors: Noma, Nobuhiko, Tomita, Keiichi, Imai, Tatsuo
• Primary Examiner(s): Fan; Chieh M.
• Assistant Examiner(s): Joseph; Jaison
• Application Number:
  US10/184,942
• Publication Number:
  US 20030063600A1
• Time in Patent Office: 1,961 Days
• Field of Search: 375/222, 375/225, 375/340, 375/219, 375/220, 375/259, 375/257, 370/249, 370/252, 370/378, 370/282, 370/430
• US Class Current: 375/222
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Abstract

The present invention monitors communication status during a data communication, determines whether the current communication status needs a re-initialization, requests a re-initialization of an opposing ADSL modem apparatus by transmitting ClearEOC when a re-initialization is needed, receives a response to a re-initialization request from the opposing ADSL modem apparatus, and performs a re-initialization after a predetermined time period.

Claims

1. A re-initialization method for an ADSL modem apparatus, comprising:

monitoring communication status during a data communication;

determining whether a current communication status needs a re-initialization;

requesting a re-initialization of an opposing ADSL modem apparatus by transmitting ClearEOC, when a re-initialization is necessary;

performing a re-initialization after a predetermined time period upon receiving a response to a re-initialization request from the opposing ADSL modem apparatus; and

transmitting a mode select signal, the mode select signal including an identification field, a standard information field, and a non-standard information field.

2. The re-initialization method according to claim 1, the non-standard information field of the mode select signal being configured to inform the opposing ADSL modem apparatus that re-initialization can be performed.

3. A re-initialization method for an ADSL modem apparatus, comprising:

monitoring communication status during a data communication;

determining whether a current communication status needs a re-initialization;

requesting a re-initialization of an opposing ADSL modem apparatus by transmitting ClearEOC, when a re-initialization is necessary;

performing a re-initialization after a predetermined time period upon receiving a response to a re-initialization request from the opposing ADSL modem apparatus, wherein it is determined whether the re-initialization is necessary based on an eye pattern distribution that is detected from reception data from the opposing ADSL modem apparatus; and

transmitting a mode select signal, the mode select signal including an identification field, a standard information field, and a non-standard information field.

4. The re-initialization method according to claim 3, the non-standard information field of the mode select signal being configured to inform the opposing ADSL modem apparatus that re-initialization can be performed.

5. A re-initialization method for an ADSL modem apparatus, comprising:

monitoring communication status during a data communication;

determining whether a current communication status needs a re-initialization;

requesting a re-initialization of an opposing ADSL modem apparatus by transmitting ClearEOC, when a re-initialization is necessary;

performing a re-initialization after a predetermined time period upon receiving a response to a re-initialization request from the opposing ADSL modem apparatus, wherein it is determined that a re-initialization request is being made or that a response to the re-initialization request is being made, when a predetermined data row is set in a predetermined bit, among bits that configure ClearEOC transmitted by the opposing ADSL modem apparatus; and

transmitting a mode select signal, the mode select signal including an identification field, a standard information field, and a non-standard information field.

6. The re-initialization method according to claim 5, the non-standard information field of the mode select signal being configured to inform the opposing ADSL modem apparatus that re-initialization can be performed.