Wireless headset

Patent 5982904 Issued on November 9, 1999. Estimated Expiration Date:

January 22, 2018. 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

Wireless telephone apparatus including both a telephone handset and a telephone headset
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Inventors

Assignee

Voice Communication Interface Corp.

Application

No. 009866 filed on 01/22/1998

US Classes:

381/74, HEADPHONE CIRCUITS381/311, Wireless or for use in diverse455/575.2Headgear

Examiners

Primary: Harvey, Minsun Oh

Attorney, Agent or Firm

St.Onge Steward Johnston & Reens LLC

International Class

H04R 001/10

Abstract

A wireless headset is provided, comprising: a microphone for receiving a first audio signal and for generating a corresponding microphone electrical signal; a portable receiver/transmitter electrically connected to the microphone for transmitting a first carrier frequency modulated according to the microphone's electrical signal; a remote receiver/transmitter for receiving and demodulating the modulated first carrier frequency to generate a first electrical signal corresponding to the microphone electrical signal, the remote receiver/transmitter also for transmitting a second carrier frequency modulated according to a second electrical signal; the portable receiver/transmitter also for receiving and demodulating the second modulated carrier frequency to generate a speaker electrical signal; and a speaker electrically connected to the portable receiver/transmitter for transforming the speaker's electrical signal into a second audio signal, one of the first and second carrier frequencies being above 900 Megahertz, the other of the first and second carrier frequencies being below 900 Megahertz.