Internal circuit for adaptive mode selection of multi-mode RF integrated circuit
US6249686A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An RF integrated circuit includes an improved control circuit for switching between at least two modes of operation, depending upon a characteristic of a signal received by the integrated circuit, the RF integrated circuit including a first input for receiving a first RF signal, when the integrated circuit is in a first mode; a second input for receiving a second input signal when the integrated circuit is in a second mode; and a detector on the integrated circuit couples to the first and second inputs for detecting the presence of the first and second RF signals, and producing an output signal at a logic port of the detector, depending on the state of the first and second RF signals; and a controller on the integrated circuit connected to the detector for switching the integrated circuit between the first mode and the second mode in response to the output signal without the need for the application of an external control signal to the integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.