Abstract: An apparatus to locate an article is disclosed. The apparatus comprises a host device comprising a transmitter, and a client device attached to the article. The client device comprises a client controller, a receiver interconnected with the client controller, a battery interconnected with both the client controller and the receiver. The controller and the receiver alternate between an inactive mode and an active mode.

Abstract: An apparatus to locate an article is disclosed. The apparatus comprises a host device comprising a transmitter, and a client device attached to the article. The client device comprises a client controller, a receiver interconnected with the client controller, a battery interconnected with both the client controller and the receiver. The controller and the receiver alternate between an inactive mode and an active mode.

Abstract: A portable wireless storage unit for storing data includes a radio-frequency (RF) module, a microprocessor module, a main memory module, and a power control module. The RF module enables wireless communication between the wireless storage unit and a target device, the wireless communication including data transfer requests and data. The microprocessor module processes data transfer requests received by the RF module. The main storage module, which includes a main memory, responds to data transfer requests under control of the microprocessor module by retrieving data from the main memory for transmission by the RF module and by storing data received by the RF module in the main memory. The power control module, which can be coupled to a power source, selectively supplies power to one or more of the RF module, the main storage module, and the microprocessor module.