Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874654

Neagley, Daniel L ^[1]; Briles, Scott D ^[2]; Coates, Don M ^[3]; Freund, Samuel M ^[2]

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1. Albuquerque, NM
2. Los Alamos, NM
3. Santa Fe, NM

A long-range communications apparatus utilizing modulated-reflector technology is described. The apparatus includes an energy-transmitting base station and remote units that do not emit radiation in order to communicate with the base station since modulated-reflector technology is used whereby information is attached to an RF carrier wave originating from the base station which is reflected by the remote unit back to the base station. Since the remote unit does not emit radiation, only a low-power power source is required for its operation. Information from the base station is transmitted to the remote unit using a transmitter and receiver, respectively. The range of such a communications system is determined by the properties of a modulated-reflector half-duplex link.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: The Regents of the University of California (Los Alamos, NM)
• Patent Number(s): US 6434372
• OSTI ID: 874654
• Country of Publication: United States
• Language: English

Related Subjects

long-range
full-duplex
modulated-reflector
cell
phone
voicedata
transmission
communications
apparatus
utilizing
technology
described
energy-transmitting
base
station
remote
units
emit
radiation
communicate
information
attached
rf
carrier
wave
originating
reflected
unit
low-power
power
source
required
operation
transmitted
transmitter
receiver
range
determined
properties
half-duplex
link
power source
data transmission
remote unit
base station
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