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Browse Prior Art Database

Selection Indicator Slewing on a Dishwasher

IP.com Disclosure Number: IPCOM000029318D
Publication Date: 2004-Jun-23
Document File: 2 page(s) / 74K

Publishing Venue

The IP.com Prior Art Database

Abstract

Selection indicator slewing is: 1) illuminating the (x+1)th indicator when the "up" button is pressed; and 2) illuminating the (x-1)th indicator when the "down" button is pressed. This assumes the currently illuminated indicator is position x.

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Title of Invention:

Selection Indicator Slewing on a Dishwasher

Invention Abstract Selection indicator slewing is: 1) illuminating the (x+1)th indicator when the "up" button is pressed; and 2) illuminating the (x-1)th indicator when the "down" button is pressed. This assumes the currently illuminated indicator is position x.

Problem or requirement addressed by the invention For cycle selection, most dishwasher human machine interfaces (HMI) have an indicator located near a button which illuminates when the button is pressed. This invention allows a Dishwasher HMI to have the same functionality in less space of a larger one-to-one, button-to-indicator type HMI. This reduces the number of buttons needed to select multiple dishwasher cycles. (Using one button is sufficient.) This also reduces the cost of the HMI.

How has this problem or requirement been addressed before? On dishwashers, it is novel that indicators slew for cycle selection. However, some dishwashers avert the one-to-one, button-to-indicator correspondence by using a Vacuum Fluorescent Display which displays the name of the current cycle. A button press changes the selection to the next cycle on the VFD.

How the invention works An electronic control is connected to a Human Machine Interface that has buttons and LEDs. Two buttons are dedicated to Dishwasher Cycle Selection -- let's call them the Up and Down buttons. When the control senses that the Up button is pressed, it de-energizes the currently il...