Transceiver systems and methods that preserve frequency order when downconverting communication signals and upconverting data signals
US6324379A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1998 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | May 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/408
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Full-duplex, coherent transceivers are provided which can directly interface between exisiting data interface modules (e.g., cable modems) and wireless cable providers to facilitate the flow of high-speed downlink communication signals and high-speed uplink data signals. Currently, a speed bottleneck is formed between consumers and various communication resources (e.g., the internet) by low transfer rates of telephones and conventional modems. This bottleneck is removed by transceivers of the invention. The transceiver structure prevents frequency inversion and reduces cost because it can form the required interface without requiring additional interface modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.