US 6,445,936 B1 · Low power consumption quick charge for wireless device

Abstract

The current draw of a wireless device, e.g., a cordless telephone, is minimized for a cradled remote handset drawing power from an AC outlet. This allows a greater portion of the total current amperage provided by the AC to DC converter to be allowed to charge the battery in the remote unit, and reduces the overall maximum or peak value of the current draw of the wireless device. With an improved peak power budget, a smaller (and presumably less expensive) AC to DC adapter than otherwise necessary may be used to power the wireless device. In one aspect, sniff operations of the remote handset are disabled or otherwise suppressed while the remote handset is in the cradle of the base unit, e.g., receiving a quick charge or trickle charge to its battery. In a second aspect, sniff operations of the base unit are disabled or otherwise suppressed while the remote handset is in the cradle of the base unit. In a last aspect, the charging mode of the battery in the remote handset of a wireless device changes based on activity in the remote handset.

Claims29

Dependent claims

Apparatus to suppress a sniff operation in a wireless device, comprising:

a charge detector module to detect a presence of charge current from a charging unit of said wireless device to a battery of said wireless device;
and
a sniff module having an enabled mode and a disabled mode, said sniff module being placed in said disabled mode when said charge current is detected.

Dependencies are inferred from the claim text.

Low power consumption quick charge for wireless device

Life of this patent

Low power consumption quick charge for wireless device

Life of this patent

Abstract

Claims29