Cordless phone data transfer
US6339695B1 · kind B1 · utility
7Cited by
12References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 1999 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/727
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for transferring identification codes using magnetic coupling. A matching code is established by a microprocessor and is stored in the memories of a communications base unit and a mobile unit. When the mobile unit is placed in the base unit the central processing unit sends pulsed current to a coil in the base unit inducing a magnetic field. A Hall effect transistor in the mobile unit detects the induced changes in the magnetic field and transmits the pulse pattern to the base unit (handset) memory where it is entered as a new identification code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.