Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1997 | Invention patented by Chieh-Wen Tsai and David Y. Wong on November 4th, 1997. Abstract: Multiple characteristics of an signal are measured to determine the presence of an alert tone on an incoming signal to a customer premises equipment (CPE) in preparation for receipt of FSK modem signals. The apparatus, method, and article of manufacture discern the presence of an alert tone by measuring characteristics of the incoming signal. The alert tone is able to be discerned even under crosstalk conditions and over a wide dynamic range with the digital signal processing (DSP) method and apparatus described. Multiple characteristics of the signal are measured to determine the presence of the alert tone. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
