Method of detecting external voltage source for disablement of battery conservation mode in a portable communications device
First Claim
Patent Images
1. A method of detecting a voltage source type supplied to a portable communications device, the portable communications device having a battery conservation mode for reducing current drain on the voltage source, the method comprising the steps of:
- detecting a user selected voltage at a set location at the portable communications device;
defining a first voltage range and second voltage range;
determining if the detected voltage is within the first voltage range or the second voltage range; and
disabling the battery conservation mode in response to a detected voltage in the second voltage range.
1 Assignment
0 Petitions
Accused Products
Abstract
A portable communication device with battery conservation capability is capable of sensing (223) its power source and suppressing a battery conservation circuit depending on an actual voltage determined (225) from an analog-to-digital converter. Two or more voltage ranges are defined (227) such that battery conservation is disabled when an external power source is operated in one of the predetermined voltage ranges.
-
Citations
15 Claims
-
1. A method of detecting a voltage source type supplied to a portable communications device, the portable communications device having a battery conservation mode for reducing current drain on the voltage source, the method comprising the steps of:
-
detecting a user selected voltage at a set location at the portable communications device; defining a first voltage range and second voltage range; determining if the detected voltage is within the first voltage range or the second voltage range; and disabling the battery conservation mode in response to a detected voltage in the second voltage range. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of detecting an external voltage source for disablement of a battery conservation mode in a portable communications device having an internal battery source, the method comprising the steps of:
-
detecting a user selected supply voltage to the portable communications device; sampling the supply voltage using an analog-to-digital converter to obtain a digital voltage value; computing an actual voltage value from the digital voltage value; establishing a first voltage range below a value of the internal battery source; establishing a second voltage range at substantially the voltage of the internal battery source; establish a third voltage range at substantially the voltage of an external voltage source; and disabling the battery conservation mode when the supply voltage is detected in the third voltage range. - View Dependent Claims (9, 10, 11)
-
-
12. A method of disabling a battery conservation circuit for conserving battery life in a portable two-way radio, wherein the portable two-way radio is operated from a user selected supply voltage of either an internal battery source or an external direct current (DC) power source, the method comprising the step of:
-
computing a digital supply voltage of the portable two-way portable radio using an analog-to-digital converter; converting the digital supply voltage to an actual supply voltage; determining a first voltage range based upon the voltage of the internal battery source; determining a second voltage range based upon the voltage of the external direct current (DC) power source; and disabling the battery conservation circuit if the actual supply voltage is in the second voltage range. - View Dependent Claims (13, 14, 15)
-
Specification