| US 7,464,647 B2 | ||
| Dynamic baselining in current modulation-based communication | ||
| Gimtong Teowee, Westlake Village, Calif. (US); and David T. Jennings, III, Santa Barbara, Calif. (US) | ||
| Assigned to Special Devices, Inc., Moorpark, Calif. (US) | ||
| Filed on Jan. 24, 2006, as Appl. No. 11/339,162. | ||
| Application 11/339162 is a continuation of application No. 10/736166, filed on Dec. 13, 2003, granted, now 6,988,449, filed on Jan. 24, 2006. | ||
| Application 10/736166 is a continuation in part of application No. 10/619687, filed on Jul. 15, 2003, granted, now 6,966,262, filed on Nov. 22, 2005. | ||
| Prior Publication US 2006/0266246 A1, Nov. 30, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. F23Q 21/00 (2006.01) | ||
| U.S. Cl. 102—215 [102/206] | 20 Claims |
| 1. A method of dynamically baselining current modulation-based talkback comprising the following steps:
a) establishing an electrically-connected system that includes a master device and at least one slave device that communicates
to the master device using current modulation-based talkback;
b) causing said master device to periodically measure a baseline level of the talkback current; and,
c) causing said master device to thereafter receive talkback compensated according to said measured baseline level of talkback
current.
|