BATTERY SAVING TECHNIQUE FOR PORTABLE RADIOS USING INFRA-RED DETECTION
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2002-Feb-26
A major concern with current portable radio products is battery life. The ability ofa radio to have an extended lifespan without the need for re-charging the battery is an important feature/selling point. This invention covers the concept ofusing low cost infra- red sensors in portable radios to minimize the usage .of some high power ergonomic features, thus expanding the battery life. Some examples of high power ergonomic features could include: -Display backlighting, -Keypad backlighting.