| Patent Number |
Title Of Patent |
Date Issued |
| 5933039 |
Programmable delay line |
August 3, 1999 |
| Digital signal delay lines with electrically programmable and trimmable delay times, including electrically erasable and reprogrammable delay times. Floating gate field effect transistors are programmed to select current, capacitance, and/or threshold and thereby set a delay time det |
| 5650739 |
Programmable delay lines |
July 22, 1997 |
| Digital signal delay lines with electrically programmable and trimmable delay times, including electrically erasable and reprogrammable delay times. Floating gate field effect transistors are programmed to select current, capacitance, and/or threshold and thereby set a delay time det |
| 5059836 |
Differential-time-constant bandpass filter using the analog properties of digital circuits |
October 22, 1991 |
| An integrated circuit filter wherein two digital inverters are used, with cutoff frequencies which bracket the desired passband frequency. (The cutoff frequency of the two digital inverters is selected by changing their RC time constants.) The inverter with the lower cutoff frequency has |
| 5025177 |
Sensitive low power comparator |
June 18, 1991 |
| An integrated circuit which uses an unusual comparator design, which is not fully complementary but which has an extended common mode range, to control switching of one pole of the output driver (e.g. the lower pole) between an internal voltage (e.g. ground voltage) and a current extract |
| 4967108 |
Differential-time-constant bandpass filter using the analog properties of digital circuits |
October 30, 1990 |
| An integrated circuit filter wherein two digital inverters are used, with cutoff frequencies which bracket the desired passband frequency. (The cutoff frequency of the two digital inverters is selected by changing their RC time constants.) The inverter with the lower cutoff frequency has |
| 4955038 |
Low-power RF receiver |
September 4, 1990 |
| A RF receiver with extremely low standby power consumption. To minimize power consumption during standby, the analog input from the antenna circuit (including tank resonator) is connected directly to the inputs of a comparator.Preferably two comparators are used, each connected to a sepa |
| 4897662 |
Integrated circuit with wireless freshness seal |
January 30, 1990 |
| A micropowered module containing an integrated circuit packaged with a battery. The module is originally in a state of zero power consumption. When the module is to be put into use, a very strong electromagnetic field is applied at a predetermined frequency. A preset pulse code at this |
