| Patent Number |
Title Of Patent |
Date Issued |
| 5764542 |
Noise filtering utilizing running average |
June 9, 1998 |
| A system and method for reducing the amount of electrical noise in a signal produced by a temperature sensor for an appliance which utilizes a running average calculation to provide a more accurate sensor reading in an inexpensive and efficient manner. Consecutive readings obtained by th |
| 5651443 |
Electrical noise suppression in coin acceptor mechanism |
July 29, 1997 |
| A coin acceptor mechanism (10) for recognizing the valid input of a coin (18) into a coin operated device wherein the mechanism (10) includes a sensor (28) which produces an electrical signal (30) indicative of the sensed presence or absence of a coin. A microprocessor (14) generates a |
| 5412590 |
Appliance temperature sensor having noise filtering |
May 2, 1995 |
| An appliance temperature sensor for acquisition of usable data in a noisy environment collects a plurality of temperature readings in a buffer. It then screens that batch of data to determine whether or not its noise content is acceptably low before forwarding the data to a memory for us |
| 5367265 |
Moisture-sensing controller for a clothes dryer |
November 22, 1994 |
| A moisture-sensing circuit for a clothes dryer separates the moisture-sensing and timing functions in a way that minimizes undesirable interaction and reduces effects of tolerances in components, temperature, and supply-voltage. Separate comparators are provided for (1) the resistanc |
| 4993231 |
Thermostatic expansion valve with electronic controller |
February 19, 1991 |
| A refrigeration system employing a mechanical thermal expansion valve with a self-heated thermistor sensing saturation temperature at the high pressure inlet. A microprocessor based controller compares the sensed temperature with stored limits and provides output signals to a relay for |
| 4944160 |
Thermostatic expansion valve with electronic controller |
July 31, 1990 |
| A refrigeration system employing a mechanical thermal expansion valve with a self-heated thermistor sensing saturation temperature at a high pressure inlet and a second thermistor sensing saturation temperature at the evaporator outlet. A microprocessor based controller compares the sens |
