Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1997 | Invention patented by Kazuo Kawai on December 9th, 1997. Abstract: In a frequency scanning receiver having an AFC function, when a desired signal is caught by frequency scanning due to VCO, to which a scanning voltage from a scanning signal oscillator is applied, the scanning is stopped. At this time, an operating circuit calculates to form a setting voltage of the VCO at the convergence of the AFC, based on two voltages, which are the control voltage (scanning voltage) applied to the VCO and an output voltage of a frequency error detector, and the AFC circuit is made function after having applied this setting voltage to the VCO. In this way, it is possible to shorten a header of a packet signal and to improve through-put of data, which can be transmitted, by removing a remaining frequency error in a short period of time, when the frequency scanning is stopped, by the fact that an object signal is caught by the frequency scanning. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
