Hands-free remote entry system

Patent 5973611 Issued on October 26, 1999. Estimated Expiration Date:

October 26, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 410915 filed on 03/27/1995

US Classes:

340/5.62, Including manual switching means307/10.1, Automobile340/5.61, Wireless transceiver340/5.72, Vehicle door340/10.33, Wake up (all call)340/825.69, Radio link340/825.72Wireless link

Examiners

Primary: Cuchlinski, William A. Jr.
Assistant: Beaulieu, Yonel

Attorney, Agent or Firm

Howard & Howard

International Class

G08C 019/00

Abstract

The present invention teaches a hands-free remote entry system primarily for vehicles. This system comprises a base transceiver having wake-up sensors for automatically detecting an object. Once an object is detected, a transmitter within the base transceiver transmits a wake-up/data signal to a fob transceiver. A wake-up receiver within the fob transceiver receives the wake-up/data signal. Upon receipt of the wake-up/data signal, the fob transceiver transmits an identification/data signal, via a transmitter, back to a receiver in the base transceiver. In response to receiving the identification signal, output drivers from the base transceiver actuate a door lock system and an auto theft system.