| Patent Number |
Title Of Patent |
Date Issued |
| 6384756 |
High-speed waveform digitizer with a phase correcting means and a method therefor |
May 7, 2002 |
| A digitizer for converting an analog signal output from a semiconductor device to a digital signal, includes: N Analog-to-Digital converters (ADC's) (31, 32), which sequentially convert the analog signal output from the semiconductor device to the digital signal, a phase error term being |
| 5946359 |
Parameter measuring apparatus for digital quadrature modulation signals |
August 31, 1999 |
| An input quadrature modulation signal which is converted into a digital signal is converted into a complex baseband signal in a converter 7. A rough estimation of parameters of the signal is made in a rough signal correction unit 51. Using the estimates, the complex baseband signal is |
| 5838737 |
Method and apparatus for estimating PSK modulated signals |
November 17, 1998 |
| An in-phase component and a quadrature component of a digitized input DQPSK modulated signal are provided from interpolation filters, respectively. An instantaneous amplitude and an instantaneous phase of the input signal for each symbol clock are detected from the in-phase and quadratur |
| 5590158 |
Method and apparatus for estimating PSK modulated signals |
December 31, 1996 |
| An in-phase component and a quadrature component of a digitized input DQPSK modulated signal are provided from interpolation filters, respectively. An instantaneous amplitude and an instantaneous phase of the input signal for each symbol clock are detected from the in-phase and quadratur |
| 4722058 |
Control system for a vending machine using article freshness data |
January 26, 1988 |
| A control system for a vending machine having a plurality of article storage bins mounted on a circulatory moving member includes discriminating devices associated respectively with the article storage bins for identifying the kinds of the articles stored respectively in the article |
