Apparatus for and method of providing an indication of the magni

Details Apparatus for and method of providing an indication of the magni Apparatus for and method of providing an indication of the magni

1998-11-20

2000-10-03

Wu, Daniel J.

Communications: electrical

Condition responsive indicating system

Specified indicator structure

340514, 340539, 4551541, 4551561, 4551572, G08B 2508

Patent

active

061279366

ABSTRACT:
An apparatus for and a method of providing a visual and/or audible indication of a numerical quantity. The quantity may be derived from any source such as an analog or digital quantity. The invention has utility in any application wherein it is desirable to visually and/or audibly display the magnitude of a quantity. An example system is described which provides a visual and/or audible indication of the received signal strength (RSSI) in an RF receiver. A visual indicator such as an LED is flashed a number of times corresponding to the magnitude of an input signal. Alternatively, or in combination, an audible indicator such as a buzzer can be beeped a number of times corresponding to the magnitude of the input signal. A digitized quantity to be indicated can be calculated by or input to a microcontroller or other processor that is suitably programmed to convert the magnitude of the digitized quantity to a number representing the number of flashes or beeps. An analog quantity can be digitized by an external A/D converter or by an A/D converter integral with the microcontroller.

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