Diversity antenna for a wrist telephone
Patent 5564082 Issued on October 8, 1996. Estimated Expiration Date: 
May 6, 2014. 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.
May 6, 2014. 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 3735414 Wrist band for wrist-mounted radio with an uninsulated buckle Wrist telephone Antenna system for a wrist carried selective call receiver Polarization diversity system suitable for radio communication in indoor space Signal-strength-peak detecting circuit for automatic tuning circuit Sound port for a wrist telephone Patent #: 5381387 InventorsAssigneeApplicationNo. 239110 filed on 05/06/1994US Classes:455/575.6, Attached or connected to user343/718, Body-attached or connected368/10, COMBINED WITH DISPARATE DEVICE368/282, With band or bracelet details455/129, With coupled antenna455/347, Cabinet, housing, or chassis structure455/351TransportableExaminersPrimary: Eisenzopf, Reinhard J.Assistant: Nguyen, Lee Attorney, Agent or FirmForeign Patent References
International ClassesH04B 001/38G04B 047/00 351 AbstractA radiotelephone wrist device includes a case having a transceiver and a strap attached to the case for fastening the device to a user's wrist. The strap has a top layer and a bottom layer. The top layer is attached to the bottom layer by a pivot mechanism which facilitates rotating at least a portion of the top layer with respect to the bottom layer. A microphone is located on the strap and electrically connected to the transceiver. A speaker is located at an end of the top layer of the strap and electrically connected to the transceiver. A first antenna is located in the bottom layer of the strap. A second antenna is located in the rotatable portion of the top layer of the strap.Field of SearchCombined with diverse art deviceWith vehicle Detachable for portability Cabinet, housing, or chassis structure With retractable or readily detachable chassis Sectional or interconnectable (e.g., modules) With particular speaker mounting Diversity In antenna circuit With casing or housing With coupled antenna Fine tuning With antenna circuit tuning Loop or coil antenna Plural antenna currents entering single transformer Body-attached or connected Including balanced doublet-type antenna Including loop-type antenna Plural diverse-type antennas using same active element Including balanced doublet-type antenna Loop-type antenna COMBINED WITH DISPARATE DEVICE With band or bracelet details | |
