Wrist watch-style pager
US6329903A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 1995 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | May 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/273
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wrist watch-style pager prevents connection failure and/or breakdown due to attachment/detachment of a loop antenna and has a receivable frequency band which is not affected by the thickness of the wearer's arm. A U-shaped antenna structure is mounted inside a wrist band part which is part of the wrist band divided at the center fastening structure. The U-shaped structure functions as an independent antenna on at least one part of the wrist band. The antenna is buried in the wrist band part so that the two ends of its U-shaped structure face toward a page mainbody. When each of two contact pins on the ends of the U-shaped structure connect the wrist band with the pager mainbody, a terminal spring on a reception circuit substrate of the pager mainbody is pressed. This causes the receiving signal from the antenna to be conveyed to the page mainbody.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.