Patent ID: 8670715
Filing Date: 2014-03-11
Classification: G06K

Abstract:
1. A communications device, comprising: a processor; flash memory communicatively coupled to the processor, the memory to store a unique identifier received from a first remote device; a first antenna; a second antenna having a length different from the first antenna and a range shorter than the first antenna; a keyboard to receive input from a user; a communications circuit communicatively coupled to the processor, the first antenna, and the second antenna, the communications circuit to communicate in either of the first and second configurations selectable by the user, the communication range of the communication circuit in the first configuration being greater than the communication range of the communication circuit in the second configuration, wherein: in the first configuration, the communications circuit is to wirelessly communicate with a second remote device at a first microwave frequency and at a first power level via the first antenna, and in the second configuration, the communications circuit is to wirelessly communicate with the first remote device via the second antenna at a second microwave frequency different from the first microwave frequency and at a second power level less than the first power level, the wireless communication to use the unique identifier to uniquely identify the first remote device among other remote wireless devices within a communication range of the second antenna; and a communication port to communicate with a device external to the communications device via a wired connection; wherein the communication range decreases with power of 10 dB or more.