Claims
- 1. A system for synchronizing plural cable modem termination devices, comprising:
a master cable modem termination system device, said device having at least one downstream channel and at least one upstream channel for communicating with plural cable modems, said master device further including a counter; plural slave cable modem termination system devices connected to the master cable modem termination system device, wherein each slave device has at least one upstream channel for receiving communications from plural cable modems, each slave device further including a counter; a processor programmed to calculate a future time stamp value and to transmit said value to each of the master and slave devices; wherein the master device is designed to compare the future time stamp value with the value of the counter, and to transmit a signal to each slave device when the counter of the master device and the future time stamp have equal values, the slave devices being operative in response to said signal to load the future time stamp value to the respective counters.
- 2-24. (Cancelled)
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of the filing date of U.S. provisional Application No. 60/151,661 filed Aug. 31, 1999, and also claims the benefit of U.S. regular application Ser. No. 09/574,558, filed on May 19, 2000, which claims the benefit of the filing date of U.S. regular application Ser. No. 09/430,821, filed on Oct. 29, 1999, which claimed the benefit of the filing date of U.S. Provisional Patent Application No. 60/106,264, filed Oct. 30, 1998 and entitled HEADEND UPSTREAM MAC/PHY INTERFACE; U.S. Provisional Patent Application No. 60/106,427, filed Oct. 30, 1998 and entitled ROBUST TECHNIQUE FOR OPTIMAL UPSTREAM COMMUNICATION BETWEEN CABLE MODEM SUBSCRIBER AND A HEADEND; U.S. Provisional Patent Application No. 60/106,438, filed Oct. 30, 1998 and entitled SYSTEM FOR, AND METHOD OF, FRAGMENTING DATA PACKETS IN A CABLE MODEM SYSTEM; U.S. Provisional Patent Application No. 60/106,439, filed Oct. 30, 1998 and entitled CABLE MODEM SYSTEM; U.S. Provisional Patent Application No. 60/106,440, filed Oct. 30, 1998 and entitled NETWORK DATA TRANSMISSION SYNCHRONIZATION SYSTEM AND METHOD; U.S. Provisional Patent Application No. 60/106,441, filed Oct. 30, 1998 and entitled BURST RECEIVER SYSTEM, the entire contents of all of which are hereby expressly incorporated by reference.
Provisional Applications (7)
|
Number |
Date |
Country |
|
60151661 |
Aug 1999 |
US |
|
60106264 |
Oct 1998 |
US |
|
60106427 |
Oct 1998 |
US |
|
60106438 |
Oct 1998 |
US |
|
60106439 |
Oct 1998 |
US |
|
60106440 |
Oct 1998 |
US |
|
60106441 |
Oct 1998 |
US |
Continuations (2)
|
Number |
Date |
Country |
Parent |
09653155 |
Aug 2000 |
US |
Child |
10856829 |
Jun 2004 |
US |
Parent |
09430821 |
Oct 1999 |
US |
Child |
09574558 |
May 2000 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09574558 |
May 2000 |
US |
Child |
10856829 |
Jun 2004 |
US |