Wireless stereo headphone
Patent 4845751 Issued on July 4, 1989. Estimated Expiration Date: 
March 16, 2008. 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.
March 16, 2008. 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.Patent References D212003 D212005 D215661 3906160 Low power consumption stereo transmitter and receiver system Patent #: 3934201 InventorApplicationNo. 07/169014 filed on 03/16/1988US Classes:381/311, Wireless or for use in diverse381/105, Remote381/74, HEADPHONE CIRCUITS455/151.2, Wireless link (sonic, RF, or infrared)455/352Remote control of receiverExaminersPrimary: Isen, Forester W.Attorney, Agent or FirmInternational ClassesH04H 5/00 (20060101)H04B 5/00 (20060101) H04R 5/033 (20060101) H04R 5/00 (20060101) H04R 5/04 (20060101) AbstractA wireless stereo headphone is provided that permits a user to listen to a stereo program being received by a conventional receiver/amplifier without the use of interconnecting wires. A transmitter contained within the headphones allows the user to remotely activate the SCAN and SEEK features of the receiver so that not only can he monitor a program and vary its volume, he can also select the program material. | |
