Linda Ryan

US Patent:

7667590, Feb 23, 2010

Filed:

Jun 26, 2006

Appl. No.:

11/474758

Inventors:

Gary Ryan - Huntington Beach CA, US
Linda Ryan - Huntington Beach CA, US

International Classification:

G08B 1/08

US Classification:

3405391, 34053932, 34053913, 3405731

Abstract:

An object locating system includes a primary portable controller including controls and LEDs, a transceiver, a digital signal processor, and a memory. The memory includes programmable software instructions that cause the primary controller to emit search signals that have corresponding unique frequencies. A phase-locked loop frequency synthesizer circuit is coupled to the signal processor for comparing a feedback frequency of the search signals. Secondary controllers are removably attached to the objects. Each secondary controller includes a transceiver that has an antenna coupled thereto, a processor, and a memory including software instructions that cause the secondary controller to transmit a location signal upon verifying the identity of the corresponding search signal. The primary and each secondary controller memories are EEPROMs. A transducer is coupled to the processor and emits an audible and visual signal in response to receiving the search signal.